A1 11 00996201

SImlu. EmII/Extreme wind speeds at 129 S TA435 .use N0.116 V1979;C.2 C.1 NBS-PUBNBS BUILDING SCIENCE SERIES 118

Extreme Wind Speeds

at 129 Stations

in the Contiguous

United States

U.S. DEPARTMENT OF COMMERCE • NATIONAL BUREAU OF STANDARDS
NATIONAL BUREAU OF STANDARDS

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National Bnreaa o1 Standar MAY 1 0 1971

NBS BUILDING SCIENCE SERIES 118

Extreme Wind Speeds at 129 Stations

in the Contiguous United States

Emil Simiu

Center for Building Technology

National Engineering Laboratory

National Bureau of Standards

Washington, D.C. 20234

Michael J. Changery

Environmental Data Information Service

National Climatic Center

National Oceanic and Atmospheric Administration

Asheville, North Carolina 28801

James J. Filliben

Center for Applied Mathematics

National Engineering Laboratory •

Sponsored by: National Science Foundation

Washington, D.C. 20550 and Department of Energy

Office of Assistant Secretary^

Conservation and Solar Applications

Washington, D.C. 20545

U.S. DEPARTMENT OF COMMERCE, Juanita M. Kreps, Secretary

Jordan J. Baruch, Assistant Secretary for Science and Technology

NATIONAL BUREAU OF STANDARDS, Ernest Ambler, Director

I I <

National Bureau of Standards

Washington, D.C. 20234

Issued March 1979
Library of Congress Catalog Card Number: 79-600018

National Bureau of Standards Building Science Series 118

Nat. Bur. Stand. (U.S.), Bldg. Sci. Ser. 118, 318 pages (Mar. 1979) CODEN: BSSNBV

U.S. GOVERNMENT PRINTING OFFICE

WASHINGTON: 1979

For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402

Stock No. 003-003-02041-9 Price $5.25

(Add 25 percent additional for other than U.S. mailing)
ABSTRACT

The purpose of this report is to present information on recorded

and predicted wind speeds at 129 airport stations in the contiguous

United States at which reliable records are available over a number

of consecutive years. This information is provided to serve as basic

documentation from which appropriate decisions can be made on values

of design wind speeds to be specified in building codes and standards,

and on special projects. Included in the report are: recorded wind

speeds and anemometer elevations; predicted wind speeds based on probability distributions of the largest values; estimates of the sampling

errors inherent in the predicted wind speeds; a description of the

statistical procedure used in the analysis of the data; and a discussion of the results of the analysis.

Key Words: Building (codes); probability distribution functions;

statistical analysis; storms; structural engineering; wind

pressure; wind speeds.

ACKNOWLEDGMETSTTS

The work presented in this report was supported by the National

Science Foxindation (Grant No. ENV77-16113) and by the Department of

Energy, Office of Assistant Secretary, Conservation and Solar Applicatioiis. Tiie photographs included in the report were provided by the

National Oceanic and Atmospheric Administration.

iii
TABLE OF CONTENTS

Page

1. INTRODUCTION 1

2. WIND SPEED DATA 5

2.1 Fastest Observed One-Minute Wind Speeds 5

2.2 Measured and Estimated Wind Speeds 6

2.3 Roughness Conditions at Airport Stations 7 2.4 Variation of Wind Speed with Height Above Ground .... 7

3. STATISTICAL ANALYSIS ..... 11

3.1 Ojective of Statistical Procedure 11

3.2 Probability Plots lA

3.3 Estimation of Sampling Errors 14

3.4 Summary of Results 15

3.5 Type I Versus Type II Distribution 19

3.6 Largest Wind Speed in a Sample of Size N and the

N-Year Wind 19

4. WIND SPEED AND DIRECTION DATA AND COMPUTER INPUT AND OUTPUT. . 21

APPENDIX 1 - Stations at Which the Largest Yearly Wind Speed

Data May Not Provide a Reliable Basis for

Predicting Extreme Winds Al

REFERENCES A2

iv
1 . INTRODUCTION

The purpose of this report is to present information on extreme wind

speeds at 129 airport stations in the contiguous United States at which

reliable wind records are available over a number of consecutive years.

This information consists of:

1. Extreme yearly wind speeds, and the corresponding wind directions, recorded at each of the 129 stations. These data were obtained

by the National Climatic Center from the original records. Thus, reading

errors of original records and errors of transcription that have been

determined to be present in Local Climatological Data (LCD) monthly and

annual summaries* have been eliminated. The vast majority of the

* A list of stations for which LCD summaries are available can be

obtained from the National Climatic Center, Asheville, N.C, 28801.

Summaries may be ordered from the Superintendent of Documents, U.S.

Government Printing Office, Washington, D.C. 20402.

1
originally recorded data consisted of fastest-mile speeds. These have

been listed without modification in the report. However, at a few stations, some of the recorded data consisted of fastest observed one- minute speeds. These have been transformed into fastest-mile speeds

using a relation given in Section 2,1. It is these fastest-mile speeds

that have been listed in the report in lieu of the orginally recorded

fastest observed one-minute data. The stations and dates at which

fastest-minute speeds were originally recorded are listed in Section

2.1.

A few of the wind speed data used herein represent estimates, rather

than results of measurement. These data are identified in Section 2.2.

2. Anemometer elevations at which the largest yearly wind speeds were recorded,

3. Largest yearly wind speeds reduced to an elevation of 10m above

ground (corrected speeds). These were obtained by using an expression

given in Section 2.4.

4. Results of the statistical analysis of the corrected wind

speed data. These results include:

° For each of the 129 sets of data, the predicted wind speeds

corresponding to various return periods, based on the assumption that the Type I probability distribution of the largest

values is a valid description of the extreme wind speeds

" for those sets of data that are best fit by a Type II probability distribution of the largest values, the predicted

wind speeds corresponding to various return periods, based

on that distribution

" estimates of the lower bound of the standard deviation of

the errors inherent in the predicted speeds

° estimates (obtained by the method of moments) of the standard deviation of the errors inherent in the predicted speeds

Extreme wind speed predictions have been included for mean

recurrence intervals of up to 1,000,000 years. However, in the writers'

opinion, physical considerations suggest that predictions corresponding

to. mean recurrence intervals beyond a few hundred years should be

regarded with caution,

A brief description of the procedure used in the analysis of the

data is presented in Section 3, Section 3 includes a summary, and Sections 3.3 and 3.4 a discussion of the results of the statistical analysis. The information described under items 1 through 4 above is

included in Section 4 of the report.

2
It is noted that at a number of stations the extreme yearly wind

speed data may not provide a reliable basis for predicting extreme

speeds. The results of the statistical analysis for these stations

should therefore be regarded with caution. Stations for which such

caution is in order are listed in Appendix 1,

3

2. WIND SPEED DATA

2.1 FASTEST OBSERVED ONE-MINUTE WIND SPEEDS

It was indicated in Section 1 that the vast majority of the original

data used in this report consisted of fastest-mile wind speeds, i.e.,

speeds averaged over a time interval (in seconds) t = 3600/ v^, and v^ = the fastest-mile wind speed in miles per hour. However, at the following

stations the original recorded maximum annual wind speed data consisted

of fastest observed one-minute speeds during the periods indicated below:

Atlanta, Georgia

Indianapolis, Indiana

Boston, Massachusetts

Lansing, Michigan

Sault Ste Marie, Michigan

(1961 through 1963)

(1962-1963)

(1954 through 1958)

(1955 through 1958)

(1956 through 1965)

5
According to Reference 1, studies of the relationship between fastest observed one-minute to fastest-mile wind speeds undertaken at four

weather stations "showed the mean regression between the two types of

observation to be

Vf = 9.55 + 0.999 v^^ (2.1.1)

where v^ = fastest-mile speed in miles per hour and v^^^ = fastest-minute

speed in the same hour as the fastest-mile, in miles per hour. Since

the slope is very near unity and the mean difference very near 10, it

has been assumed for some time that adding 10 mph to the fastest-minute

would give an approximation to the fastest-mile". It is this relation

which - in the absence of other information - has been used in this

report.

While the writers are not certain that Eq, 2.1.1 provides a correct

relation between v^ and Vjjj, they note that it results in estimates of

V£ that are conservative from a structural safety point of view,

2.2 MEASURED AND ESTIMATED WIND SPEEDS

With relatively few exceptions the wind speed data used in this

report were obtained by measurement. However, at the locations and

dates noted below, the extreme annual speeds represent values estimated

by the station operator, rather than measured values.

Birmingham, AL (1973)

Tucson, AZ (1967)

Sacramento, CA (1967)

San Diego, CA (1969)

Denver, CO (1953)

Moline, IL (1963)

Des Moines, lA (1960)

Nantucket, MA (1966)

Detroit, MI (1957)

Grand Rapids, MI (196A)

Jackson, MS (1966)

Columbia, MO (1969)

Kansas City, MO (1971)

Springfield, MO (1965 & 1971)

Billings, MT (1959)

Fargo, ND (1959 &1968)

Albany, NY (1961)

Rochester, NY (1958)

Syracuse, NY (1974)

Cape Hatteras, NC (1933, 1944 & 1948)

Tulsa, OK (1959 and 1961)

Portland, OR (1962)

Roseburg, OR (1962)

Harrisburg, PA (1952)

Rapid City, SD (1962)

6
Nashville, TN

Abilene, TX

Amarillo, TX

Brownsville, TX

Corpus Christi, TX

Port Arthur, TX

Salt Lake City, UT

Burlington, VT

Lynchburg, VA

(1963 & 1972)

(1971)

(1972)

(1963)

(1955, 1961 & 1970)

(1972)

(1968)

(1968)

(1962 & 1967)

2.3 ROUGHNESS CONDITIONS AT AIRPORT STATIONS

In an attempt to ensure that the terrain roughness conditions are uniform among all the sets of data being analyzed, only airport stations

have been considered herein. In principle, it may be assumed that at

such stations open exposure conditions prevail. Nevertheless the mere

fact that wind speed measurements are taken at an airport station does

not necessarily ensure that the wind climatological conditions reflected

by these measurements are identical, from the standpoint of the terrain

exposure, to those prevailing at a different airport. For example, it

is noted in Reference 2 that the estimated 50-year wind at Chicago Midway

Airport is about 15 mph less than at the Chicago O'Hare airport. The

probable reason for this difference is that the terrain around the

Chicago Midway Airport is relatively heavily built-up. Similar considerations might explain to some extent the difference between the estimated 50-year winds at the Washington National Airport and the BaltimoreWashington International Airport, which are estimated in this report to

be 66 mph and 75 mph respectively. Thus, in interpreting airport data

for the purpose of developing wind maps, it is appropriate to take into

account the possibility that, at the airport of concern, the terrain

exposure conditions might differ somewhat from those defined as "open"

(e.g., in Reference 3).

2.4 VARIATION OF WIND SPEED WITH HEIGHT ABOVE GROUND

To ensure the micrometeorological homogeneity of the data at any

given station it is necessary to reduce all the wind speeds recorded at

that station to a common elevation. The elevation chosen for this purpose is lOm above ground.

The mean wind profile near the ground in homogeneous terrain is

given by the well-known logarithmic law, which may be written in the

form:

In^

U(z) = In

U(10) (2.4,1)

7
where z = height above ground and = roughness length, both expressed

in meters. In open terrain, z^ may vary from, say, 0.03m to 0.10m. In

this report the reduction of the data to an elevation of 10m is based on

the assumption z^ = 0.05m. It can be verified that the errors inherent

in the assumption = 0.05m — when in fact the values z^ = 0.03m or

Zq = 0.10m were correct — are small (of the order of 1% or 2%),

( An approximation to Eq. 2.4.1 is given by the power law

U(z) = (^)" U(10) (2.4.2)

where, for open terrain conditions, it is generally assumed ot = 1/7 (3).

It is noted that Eq. 2,4.1, and therefore its approximate equivalent

given by Eq. 2.4.2, is valid for mean wind speeds averaged over a relatively long time interval, e.g., one hour. The question thus arises of

expressing the variation with height of the fastest-mile wind speed,

which is averaged over a relatively short time (30 to 90s or so).

To obtain an approximate expression for the fastest-mile wind profile, note that it may be assumed, approximately.

"pk ^fm (2.4.3)

Upk - U 2

where Up^^ = peak wind speed, ^^-^ = fastest-mile speed, and U = hourly

mean speed (see, e.g., Reference 4, p. 62). The expression for Upj^ can,

in open terrain, be written as

1/2

Upj^ (z) = U(z) + 3 u'2 (2.4.4)

1/2

' 2 where u = r.m.s of longitudinal velocity fluctuations, and

1/2

^•2 , U(10) (2.4.5)

^o

where z^ is expressed in meters (see Reference 4, pp. 45 and 54).

It can be verified by using Equations 2.4.1, 2.4.3, 2.4.4 and 2.4.5

that, within the anenometer elevation range of interest in this report,

it is possible to write approximately

8
2-10

10

0.02) (2.4.6)

where z is expressed in meters. The errors inherent in Equation 2.4.6 are of the order of -1 to 3%, the higher errors being on the conservative

side (i.e., yielding slightly higher fastest-mile values at 10m above

ground than would be obtained by a more "exact" expression). Eq. 2.4.6

has been employed to obtain the corrected speeds at 10m above ground in

this report.

9

62.330 0S62=MAX59.7508617

57. 1717067

54.S92S322

52.0133572

«9.43«1826=MI0

46.8550076

44.2758331

41 .6966581

39. 1 174836

36.S3e3086=MIN- X

-1.3617581 -.0481002

EXTREME VALUE TYPE I (EXPONENTIAL TYPE)

I .2655577 2.5792156

3. STATISTICAL ANALYSIS

3.1 OBJECTIVE OF STATISTICAL PROCEDURE

Probabilistic considerations, as well as available empirical

evidence suggest that the asymptotic probability distributions of the

largest values with unlimited upper tail are an appropriate model for

the behavior of the largest yearly wind speed. There are two such

distributions, known as the Type I and Type II distributions of the

largest values, whose cumulative distributions functions, Fj(v) and

F-j-j(v), respectively, are of the form

Ft(v) = exp [-exp (- ^ ~ ^

) ] ; - » < v < »;

_00<jJl<00, Q<o<oo

11
and F-r^ (v) = exp [-(1 H-) ^] ; v < v < - ; -oo<y<oo;0<a<»; Y>0 (3.1.2)

in which vi, a, and y are location, scale, and tail length parameters,

respectively. Actually, the Type I distribution may be shown to be a Type II distribution with y = <« (see Reference 4, p. 422); however, it

is convenient to refer to it separately.

^ The data were analyzed using — with minor modifications — a com- puter program listed in Reference 5. For convenience, the main features of the procedure used in the analysis of the data are summarized

in this section.

The procedure consists of three distinct stages. In the first

stage the value of y (Eq. 3.1.2) is determined which yields the closest

fit to the observed data set (recall that y = <*> corresponds to an extreme value type I distribution). The "closest fit" criterion used

in this stage is the so-called maximum probability plot correlation

coefficient criterion. The probability plot correlation coefficient

is defined as

Z(X. - X) [M.(D) - M(D)] /3 , ON

rp = Corr(X,M) = i i

{Z(X, - X)2 Z[M,(D) - M(D)]2} 1/2

in which X = ZX^/n; M(D) = ZMj^(D)/n; n=sample size; and D = probability

distribution tested. The quantities X^ are obtained by a rearrangement

of the data set: is the smallest; X2 the second smallest; and Xj|^

the ith smallest of the observations in the set. The quantities M^(D)

are obtained as follows. Given a random variable X with probability

distribution D and given an integer sample size n, it is possible from

probabilistic considerations to derive mathematically the distributions

of the smallest, second smallest, and generally the ith smallest values

of X in a sample of size n. There are various quantities that can be

utilized to measure the location of the distribution of the ith smallest

value Xj^ (e.g., the mean, the median, or the mode). It is convenient

to use the median as a measure of location in Eq . 3.1.3 — these medians

of the distribution of the ith smallest value being denoted by M^(D).

If the data set was generated by the distribution D, then aside from

a location and scale factor, X^^ will be approximately equal to Mj^(D) for

all i, and so the plot of X^ versus M^(D) [referred to as probability

plot] will be approximately linear. This linearity will, in turn, result

in a near unity value in r^. Thus, the better the fit of the distribution, D, to the data, the closer rj^ will be to unity.

12
The procedure just described makes use of 46 extreme value Type II

distributions defined by various values of Y from 1-25 in steps of 1,

from 25-50 in steps of 5, from 50-100 in steps of 10, from 100-500 in

steps of 50, from 500-1,000 in steps of 250, and y = For any given

data set, 46 probability plot correlation coefficients are computed

corresponding to these distributions, and the distribution with the

maximum probability plot correlation coefficient is chosen as the one which best fits the data (see, for example, computer output for Dallas,

Texas, Section 4), The final result from this first stage is a value,

^opt » °^ ^ corresponding to the estimated best fitting distribution.

The second stage in the procedure consists of estimating the location and scale parameters, y and a, respectively, in Eqs. 3.1,1 and

3.1.2 for the observed data set and for the determined optimal value,

^ODt > determined in stage 1. Estimates of the location and scale

follow directly from the basic probability plot approach. If a leastsquares line is fit to the probability plot corresponding to Ygp^

then the computed intercept and slope of the fitted line serve as estimates for the unknown location and scale parameters, y and o. In terms

of the and M^(D), these estimated location and scale values, y and 3, are as follows:

a = l(X^ - X)[M^(D) - mTd)] (3.1.4)

2 Z[M^(D) - M(D)]

y = X - a M(D) (3.1.5)

The third and final stage in the procedure determines the predicted

wind speed Vj^, for various intervals N of interest. The estimate for

VnIs

V = y + aGv (1 - i) (3.1.6)

N S N

opt

in which y^^^ = the optimal value of y (^s determined in stage 1); y and a are the estimates of the location and scale parameters, y and a in Eqs. 3.1.1 and 3.1.2 (as determined in stage 2); and Gj^Yop^ (p) ~ the

percentage point function of the best fitting extreme value distribution.

If Yqp^ ^ °° (i.e., if a member of the extreme value type II family provides the best fit), then

Gy (p) = (-In p)"1/y (3.1.7)

^YOpt

13
If X

00 (i .e if the extreme value type 1 distribution provides the

best fit), then

(p) = -ln(-ln p) (3.1.8)

^Yopt

In effect, the procedure described in this section is an automated

equivalent of probability paper plotting in which 46 types of probability

paper, corresponding to 46 extreme value distributions, would be used and

in which fitting would be carried out on the basis of the least-squares

method, rather than by eye.

3.2 PROBABILITY PLOTS

A majority of the Type I probability plots generated by the computer

from the data taken at the 129 stations fit a straight line reasonably

well (see, e.g., plot included in computer output for Ely, Nevada,

Section 4). However, in a number of cases the fit was relatively poor.

A discussion of various reasons leading to a poor fit is presented

in Section 3.5, To provide an idea of various types of deviations from

a Type I distribution, probability plots were included in Section 4

for the following stations: Indianapolis, Indiana; Des Moines, Iowa;

Topeka, Kansas; Wichita, Kansas; Boston, Massachusetts; Nantucket,

Massachusetts; Detroit, Michigan; Grand Rapids, Michigan; Minneapolis,

Minnesota; Missoula, Montana; Omaha, Nebraska; Valentine, Nebraska; Ely,

Nevada; Albuquerque, New Mexico; Albany, New York; Abilene, Texas; and

North Head, Washington.

3.3 ESTIMATION OF SAMPLING ERRORS

As indicated in Section 1, the computer output of Section 7 includes

estimates of the standard deviation of the sampling errors, i.e., errors

that are a consequence of the limited size of the data sample from

which the Type I distribution parameters are estimated. Two such estimates were used. One estimate is based on the method of moments and

has the following expression given by Gumbel in Reference 6 (pp. 10,174

and 228):

in which SD(vj^) = the (estimated) standard deviation the sampling error

in the estimation of the N-year wind

(3.3.1)

y = -In [ -In (1 (3.3.2)

a = the estimated value of the scale parameter; and n = the sample

size.

14
A lower bound for the estimated sampling error is given by the

following expression:

^^CR^'n^ = (0.60793y2 + 0.514y + 1.10866)1/2 _| (333)

where the notations are the same as in Equation 3,3.1. Equation 3.3.3

is commonly referred to as the Cramer-Rao lower bound (7).

3.4 SUMMARY OF RESULTS

The results of the analysis are summarized in Table 3.4.1, in which

the following notations are used:

n = sample size

X = sample mean

s = sample standard deviation

^max ~ sample maximum

Y^p^ = value of optimal tail length parameter (see section 3.1)

= estimated extreme wind corresponding to a n-year return

period, based on Type 1 distribution

ppcc = probability plot correlation coefficient (see Section 3.1)

for Type I distribution

V = estimated 50-year wind speed

50 y y

SD(v ) = estimated standard deviation of sampling error for 50-year

wind speed.

15
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18
3.5 TYPE I VERSUS TYPE II DISTRIBUTION

Of the 129 stations listed in Table 3.A.1, 15 stations [marked with

the superscript (c) in Table 3.4.1 and listed in Appendix 1] have been

noted to have largest yearly speed records that may not provide a reliable basis for predicting extreme winds. The remaining 114 stations may

be divided into three categories characterized by the value of the

optimal tail length parameter ^Qpj-» as shown in Table 3,5.1.

Table 3,5,1 Classification of Stations According to Value of y^^^

Category Range of ^Qp^. Number of Stations Percentage

I 13 1 y < " 89 78%

II '^Vovt ^ 13 11 10%

III 2 1 y^^^ < 7 14 12%

The sample size for the stations of Table 3,5,1 varies between n=10 and

n=45.

It is noted that the percentages of Table 3.5.1 are in qualitative

agreement with those found from the analysis reported in Reference 8,

in which all sample sizes were n = 37, This tends to confirm the hypothesis advanced in Reference 8 to the effect that, for stations in wellbehaved wind climates, the best fit of a Type II (rather than Type I)

distribution to a set of extreme wind data might be attributed to a sampling error in the estimation of the tail length parameter. This

hypothesis does not exclude the possibility that stations exist for

which a Type II distribution might provide an appropriate description

of the wind climate; however, according to the results of both Reference

8 and Table 3,5,1, the number of such stations, if they exist, is very

likely to be small. Thus, it appears justified to assume, as in Reference 8, that the Type I distribution of the largest values provides

in general a better description of the wind climate than Type II distributions with small values of the tail length parameter (say, 2^ Y ^ 12),

3.6 LARGEST WIND SPEED IN A SAMPLE OF SIZE N AND THE N-YEAR WIND

It is shown in Reference 9 (see also Reference 4, p. 423) that, if

a variate X has a Type I distribution, the mode of the largest value in

a sample of n values of X is very nearly equal to the value of the

variate corresponding to the mean return period n (recall that the mode

of a variate X is the value of that variable most likely to occur in any

given trial). It can be seen from Table 3.5.1 that, for most sets for

which'^^Q |. is large, the ratio v^jj^^^/v^^ is indeed close to unity.

19

WIND SPEED AND DIRECTION DATA, AND COMPUTER INPUT AND OUTPUT

21
BI RMINGHAM. ALABAMA (1944-1977). REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 34.00

THE SAMPLE MEAN = 46.64

THE SAMPLE STANDARD DEVIATION = 6.50

THE SAMPLE MINIMUM = 36.54

THE SAMPLE MAXIMUM = 62.33

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

1 1 /30/44 63. 52. N 47.

07/09/45 63. 54. NW 49.

06/09/46 63. 49. N 44 . 03/24/47 63. 48. W 44.

02/13/48 63. 47. sw 43.

08/28/49 63. 49. NW 44.

05/02/50 63. 47. W 43.

05/03/563 . 65. NW 59 . 03/10/52 63. 60. SE 54 • 03/22/53 63. 47. W 43.

02/28/54 63. 48 . SW 44 • ^ . 04/15/56 63. 56. SW 51 • 06/28/57 63. 56. SW 51.

02/28/58 63. 45. SW 41.

07/12/59 63. 52. SE 47.

02/04/60 63. 59. SE 54.

03/18/61 63. 54. NE 49.

08/05/62 63. 43. N 39.

07/24/63 63. 47. NE 43.

03/04/64 63. 43. S 39.

04/12/65 63. 49. W 44.

02/10/66 22. 36. SE 39.

03/06/67 22. 41 . SW 44.

1 1/28/68 22. 37. SW 40.

06/19/69 22. 45. SW 48.

08/01/70 22. 34. NW 37.

02/04/71 22. 38. SW 41 • 04/16/72 22. 36. SW 39.

05/11/73 22. 58. W 62.

02/21/74 22. 45. SW 48.

01/10/75 22. 49. w 53.

03/20/76 22. 50. w 54.

04/04/77 22. 49. w 53.

22
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE I DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5*0

6.0

45.63

48.50

50.33

51 .69

52.77

1 .02

1.25

1 .43

1 .57

1 .68

1.02

1 . 30

1 .54

1 . 73

1 .88

7.0

8.0

9. 0

10.0

20.0

53. 67

54.43

55. 10

55.70

59.55

1 .78

1 .87

1 .94

2. 01

2.46

2.02

2.13

2.2*

2. 33

2.94

30. 0

34,0

40. 0

50. 0

60.0

61 .76

62.44

63.32

64.53

65.51

2.73

2.81

2.91

3.06

3.18

3.30

3.42

3.56

3.76

3.92

70.0

80.0

90.0

100.0

200. 0

66.34

67.06

67. 69

68.26

71.97

3.28

3.37

3.45

3.52

3.98

4.06

4.18

4.28

4. 38

5.00

300.0

400. 0

500. 0

600.0

700. 0

74, 15

75.69

76.88

77,85

78. 68

4,25

4.44

4,59

4,71

4,81

5,37

5,63

5.83

5.99

6. 13

800. 0

900.0

1 000,

2000,

3000.

79.39

80.02

80,59

84, 29

86,46

4. 90

4,98

5. 05

5.51

5.78

6.25

6 .36

6.45

7.08

7.45

4000.

5000.0

6000,0

7000.

8000,0

88, 00

89, 19

90, 16

90,99

91 ,70

5,98

6.13

6.25

6.35

6.44

7.71

7.91

8.07

8.21

8.33

9000.0

10000.0

50000.

100000.

500000.

92.33

92. 90

101.50

105.20

1 13.81

6.52

6.59

7.68

8. 14

9.23

8.44

8.54

10.00

10 . 63

12.09

1000000.0 117.51 9.70 12.72

23
MONTGOMERY. ALABAMA (1950-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = THE SAMPLE MEAN = THE SAMPLE STANDARD DEVIATION = THE SAMPLE MINIMUM = THE SAMPLE MAXIMUM =

DATE ANEMOMETER FASTEST MILE WIND SPEED

ELEVATION(FT) AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

1 2/06/50 34 • 43. E

08/06/51 34, 43. SM

03/10/52 34, 60. SW

06/10/53 34. 51 . NW

07/14/54 34. 51 • E 05/13/55 34, 48. SW

12/15/56 34. 46. SW

04/01/57 34. 52. E

0 1/31/58 34. 43. SW

01/21/59 22. 32. S

01/14/60 22. 47. SW

03/08/6 1 22. 43. w 07/07/62 22. 34. N

03/05/63 22. 37. M

03/04/64 22. 43. S

05/22/65 22. 44. SW

02/13/66 22. 37. w 03/06/67 22. 35. w 12/28/68 23. 38. w 03/24/69 23. 34. SW

04/02/70 23. 38. S

02/26/71 23. 38. w 03/16/72 23. 44. w 12/26/73 23. 34. s 03/21/74 23. 46. SW

0 1/10/75 23. 72. w 09/03/76 23. 40. N

03/04/77 23. 43. SW

28.00

45.28

8.44

34.39

76.73

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

43.

43.

60.

5 1.

51.

48.

46.

52.

43.

34.

51.

46.

37.

40.

46.

47.

40.

38.

40.

36.

40.

40 . 47.

36.

49.

77.

43.

46.

24
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o o o o o

o o o o o

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o o o o o

o o o o o

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o o o o o

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M in o o

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25
PRESCOTT, ARIZONA (1948-1964)

THE SAMPLE NUMBER OF OBSERVATIONS = THE SAMPLE MEAN = THE SAMPLE STANDARD DEVIATION = THE SAMPLE MINIMUM = THE SAMPLE MAXIMUM =

DATE ANEMOMETER FASTEST MILE WIND SPEED

ELEVATION(FT) AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

04/10/48 30. 45. sw 12/10/49 30. 38. SM

05/25/50 30. 45. W

1 2/31/530. 3 8. SW

04/07/52 30. 38. sw 04/27/53 30. 56. sw 03/17/54 30. 65. sw 05/31/55 30. 60. SE

02/16/56 37. 65. SW

04/06/57 37. 65. SW

04/22/58 37. 51 . SW

07/17/59 37. 50. NW

04/23/60 37. 52. SW

04/07/61 37. 56. s 01/20/62 37. 56. sw 03/02/63 37. 56. SE

1 1/13/64 37. 56. SW

17.00

52.24

8.80

38.59

66.01

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

46.

39.

46 • 39.

39.

57.

66.

6 1.

64.

64.

50.

49.

51.

55.

55.

55.

55.

26
RETURN PERIOD

(IN YEARS)

2.0

3.0

4. 0

5.0

6.0

7. 0

8.0

9.0

10.0

17.0

20.0

30.0

40. 0

50. 0

60.0

70.0

80.0

90.0

100.0

200.0

300.0

400.0

500.0

600.0

700. 0

800.0

90 0.0

1 000.

2000.0

3000.

4000.

5000.

6000.

7000.0

8000.

9000.0

10000.

50000.0

100000.

500000.

1 000000.0

PREDICTED EXTREME W BASED ON

EXTREME VALUE TYPE

DI STRI BUTION

50.98

54.85

57.32

59. 15

60. 61

61 .82

62.86

63.76

64.56

68.55

69.75

72.74

74. 84

76.47

77, 80

78.92

79. 8S

80.74

81.50

86.52

89.45

91 .53

93. 14

94.45

95.56

96.53

97.38

98.14

103.14

1 06. 06

108.13

109.74

111.06

112. 17

113.13

113.98

114.74

126.35

131 .34

142.96

147.95

NO ESTIMATED

STAN. DEV.

1 SAMPL. ERROR

CRAMER-RAO

1 .96

2.40

2.73

3.00

3.22

3.41

3.58

3.72

3.85

4.51

4.71

5.22

5.58

5. 86

6.09

6.28

6.45

6.60

6.73

7.61

8.13

8.49

8.78

9. 01

9.21

9. 38

9.53

9.66

I 0.55

II .07

1 1 .44

1 1 .73

11.96

12.16

12.33

12.49

12.62

14.70

15.59

17.67

18.57

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

1 .96

2. 49

2.94

3.30

3.60

3.86

4.08

4.28

4.46

5,36

5.63

6.32

6.81

7.20

7.51

7.77

8.00

8.20

8.38

9.57

10.27

10.77

11.15

1 1 .47

1 1 .73

1 1 .96

12.17

12.35

13 ,55

14 ,25

14.75

15. 14

15.45

15.72

15.95

16, 16

16.34

19. 14

20.34

23.15

24.36

27
TUCSON, ARI ZONA <1948-1977), REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 30.00

THE SAMPLE MEAN = 51 .38

THE SAMPLE STANDARD DEVIATION = 8.61

THE SAMPLE MINIMUM = 36.97

THE SAMPLE MAXIMUM = 77.72

DATE ANEMOMETER

ELEVATION( FT

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

07/19/48 36. 52. NW 51 .

1 2/10/49 33. 44. W 44.

07/01/50 33. 51 . NM 5 1 .

I 1/17/51 33. 55. E 55.

02/26/52 33. 59. E 59.

07/11/53 33. 43. E 43.

07/10/54 33. 44. S 44.

08/30/55 33. 44. NE 44.

08/12/56 33. 37. SE 37.

07/04/57 33. 42. SE 42.

08/31/58 33. 44. E 44.

07/11/59 23. 54. S 58.

09/30/60 23. 54. SE 58.

08/08/61 23. 54. E 58.

07/29/62 23. 54, W 58.

1 1/07/63 23. 52. w 55.

07/24/64 23. 54. s 58.

07/08/65 23. 54. SE 58.

08/08/66 23. 47. SE 50.

07/31/67 23. 40. W 43.

07/18/68 20. 50. E 55.

08/07/69 20. 54. NE 59.

07/19/70 20. 59. W 65.

07/16/71 20. 71 . SE 78.

09/01/72 20. 47. N 5 1.

07/11 /7 3 20. 38. SW 42.

07/01/74 20. 43. E 47.

1 1/28/75 20. 45. S 49.

05/04/76 20. 38. W 42.

07/31/77 20. 43. NE 47.

28
RETURN PERIOD

(IN YEARS)

2.0

3.0

4. 0

5.0

6.0

7.0

8.0

9- 0

10.0

20.0

3 0.0

30.0

40.0

50.0

60.0

70.0

80.0

90.0

1 00. 0

200. 0

300.0

400.0

500. 0

600.0

700. 0

800.0

900.0

1000.0

2000.0

3000.

4000.

5000.0

6000.

7000.0

8000.0

9000.0

10000.

50000.

1 00000.

500000.0

1000000.0

PREDICTED EXTREME

BASED ON

EXTREME VALUE TY

DISTRIBUTION

50. 07

53. 81

56.20

57.9 8

59.38

60.55

61 .56

62.43

63.21

68.22

71.11

71.11

73. 15

74. 72

76.0 0

77.0 9

78.02

78. 85

79.5 9

84.44

87.27

89.28

90.84

92. 1 1 93. 18

94. 1 1 94.94

95. 67

100.50

103.33

105.34

1 06. 89

108. 16

109. 24

110.17

11 0.99

1 1 1.73

122.95

127.78

139.01

143.84

WIND ESTIMATED

STAN. DEV.

E 1 SAMPL. ERROR

CRAMER-RAO

1.44

1 .76

2.01

2.21

2.37

2.51

2.63

2.74

2.84

3.47

3.84

3.84

4. 1 1 4.31

4.48

4.63

4.75

4. 86

4.96

5.61

5.99

6.26

6.47

6.64

6.78

6.91

7. 02

7.12

7.77

8. 16

8.43

8.64

8.81

8. 96

9. 08

9.20

9.30

10. 82

11.48

13. 02

13.68

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

1 . 44

1 .84

2.16

2.43

2.65

2.84

3.01

3.15

3.29

4.15

4.66

4 .66

5.02

5.30

5.53

5 .72

5.89

6. 04

6.17

7.05

7.57

7.93

8.21

8.45

8. 64

8.81

8.96

9.10

9.98

10.50

10.86

11.15

1 1 .38

I 1 .58

I I .75

11.90

12.04

14.10

14.98

17. 05

17.94

29
YUMA«ARZZONA < 1949-1977)

THE SAMPLE NUMBER OF OBSERVATIONS 29.00

THE SAMPLE MEAN 48.85

THE SAMPLE STANDARD DEVIATION 7.67

THE SAMPLE MINIMUM 36.89

THE SAMPLE MAXIMUM 65.06

DATE ANEMOMETER

ELEVATION? FT

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

03/28/49 23. 56. NW 60.

03/25/50 23. 43. NW 46.

07/28/51 26. 50. SE 52.

07/19/52 26. 51 • S 53.

12/04/53 26. 43. NW 45.

08/01/54 26. 54. S 56.

08/12/55 26. 38. SE 40.

03/06/56 26. 43. N 45.

I 1/21/57 26. 47. N 49.

08/26/58 1 8 e 38. S 42.

12/13/59 18. 47. W 53.

09/10/60 18. 33. S 37.

07/28/61 18. 52. NE 58.

08/15/62 18. 36. SE 40.

07/26/63 18. 35. SE 39.

02/20/64 18. 50. N 56.

07/28/65 21 . 45. SE 49.

06/19/66 21. 42. SW 46.

08/31/67 21 . 49. E 53.

07/04/68 21. 39. E 42.

09/06/69 21 « 42. SE 46.

08/26/70 21. 41 • E 44.

04/17/71 21 e 42. W 46.

06/05/72 21 . 40. SE 43.

08/19/73 21. 60. SE 65.

04/09/74 21 . 36. W 39.

07/25/75 21 • 47. NE 51.

09/10/76 21 . 57. E 62.

08/14/77 21. 56. S 61 •

30
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6.0

47.67

51. 05

53.22

54.82

56. 1 0

1.30

1 .60

1 .82

2.00

2. 15

1.31

1.66

1 .96

2. 20

2.40

7.0

8. 0

9.0

10.0

20.0

57. 16

58.06

58.85

59.56

64. 10

2.27

2.38

2.48

2. 57

3.14

2.57

2.72

2.86

2.97

3.76

29. 0

30.0

40.0

50.0

60.0

66.49

66.71

68.55

69.98

71.14

3.45

3.48

3.72

3.91

4. 06

4.18

4.22

4.54

4.80

5.01

70.0

80.0

90.0

100.0

200.0

72. 12

72.97

73.71

74.38

78.77

4.19

4.30

4.40

4.49

5.07

5.18

5.33

5.47

5.59

6.38

300. 0

40 0.0

500. 0

600.0

700. 0

81 .33

83. 15

84.56

85.71

86.69

5.42

5.66

5.85

6.01

6.14

6.85

7.18

7.44

7.65

7.82

800.0

900. 0

1 000.0

2000.0

3000.0

87.53

88.27

88.94

93.31

95.87

6.25

6.35

6.44

7. 04

7.38

7.98

8.11

8.23

9.03

9.50

4000.0

5000.0

6000.0

7000.0

8000.0

97.69

99. 09

100.25

101 .22

102. 06

7.63

7.82

7.98

8.1 1 8.22

9.84

10.09

10.30

10.48

10.64

9000.0

10000.0

50000.

100 000.0

500000.0

102.80

103.47

1 13.62

118.00

128. 16

8.32

8.42

9. 80

10.39

1 1 .78

10.77

10.90

12.76

13.56

15.43

1000000.0 132.53 12.38 16.24

31
FORT SMITH. ARKANSAS < 1952-19771

THE SAMPLE NUMBER OF OBSERVATIONS = 26.00

THE SAMPLE MEAN = 46.59

THE SAMPLE STANDARD DEVIATION = 7.02

THE SAMPLE MINIMUM = 36.23

THE SAMPLE MAXIMUM = 60.74

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

1 1/25/52 30. 56. sw 57.

04/23/53 30. 42. w 43.

08/28/54 30. 42. NE 43.

04/27/55 30. 42. SE 43.

02/25/56 30. 56 • W 57.

04/07/57 30. 57. NW 58.

02/27/58 30. 44. W 45.

06/11/59 30. . 57. NE 58.

05/05/60 30. 57. NW 58.

03/12/61 23. 34. W 36.

04/30/62 23. 38. SW 40.

05/16/63 23. 40. NW 43.

08/28/64 23. 42. N 45.

07/25/65 23. 44. NE 47.

04/20/66 23. 45. W 48.

06/21/67 23. 42. W 45.

1 1/15/68 23 . 40. NW 43.

06/23/69 23. 34. SW 36.

05/30/70 23. 38. NE 40.

12/14/71 23. 45. SW 48.

04/13/72 23. 41 . SW 44.

04/09/73 23. 40. NW 43.

06/15/74 23. 57. NW 6 1.

I 1/29/75 23. 45. W 48.

02/20/76 23. 40. w 43.

02/23/77 23. 40. NW 43.

32
RETURN PERIOD

(IN YEARS)

2.0

3.0

4.0

5.0

6.0

7. 0

8.0

9.0

10.0

20.0

26. 0

30.0

40.0

50.0

60.0

70.0

80. 0

90.0

100.0

200.0

300.0

400.0

500. 0

600. 0

700.0

800.0

900.0

1000.0

2000.0

3000.

4000.0

5000.0

6000.0

7000.

8000.0

9000.0

10000.0

50000.0

100000.0

500000.0

1 000000.0

PREDICTED EXTREME W BASED ON

EXTREME VALUE TYPE

DISTRIBUTION

45.56

48. 56

50.48

51.91

53.04

53.98

54.79

55.49

56. 1 1 6 0. 15

61.65

62.47

64. 11

65.37

66.40

67.27

68.03

68.69

69.28

73.18

75.46

77.07

78.33

79.35

80. 21

80.96

81.62

82.21

86. 1 0

88.37

89.98

91. 24

92.26

93. 12

93.87

94.53

95. 12

104. 14

108. 03

1 17. 05

120. 94

ND ESTIMATED

STAN. DEV.

1 SAMPL, ERROR

CRAMER-RAO

1.26

1.54

1 .76

1 .94

2. 08

2.20

2.31

2.40

2.48

3.04

3.25

3.37

3.60

3.78

3.93

4.05

4.16

4.26

4.34

4.91

5.24

5.48

5,66

5. 81

5.94

6. 05

6.15

6.23

6.81

7. 14

7.38

7.57

7.72

7.84

7.96

8. 05

8. 14

9.48

10.06

I 1.40

I I . 98

ESTIMATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

I .26

1.61

1 .90

2. 13

2.32

2.49

2.63

2.76

2.88

3.63

3.92

4.08

4.40

4.64

4.64

5.01

5. 16

5.29

5.41

6.17

6.63

6.94

7.19

7.40

7.57

7.72

7.85

7.97

8.74

9.19

9.51

9.76

9.97

10.14

10.29

10.42

10.54

12.34

13.12

14.93

15.71

33
LITTLE ROCK, ARKANSAS (1943-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 35.00

THE SAMPLE MEAN = 46.72

THE SAMPLE STANDARD DEVIATION = 9.63

THE SAMPLE MINIMUM = 30.65

THE SAMPLE MAXIMUM = 72.25

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND , DI RECT ION (RECORDED WIND SPEED AT 1 OM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

07/20/43 58. 45. N 41.

03/07/44 58. 50. NW 46.

03/23/45 58. 45e SE 4 1 . 06/26/46 58. 41 . S 38.

04/19/47 58. 42. sw 39.

03/26/48 58. 48. sw 44.

02/14/49 58. 45. NW 4 1 . 09/11/50 58. 44. NW 40.

12/04/51 67. 40. NE 36.

05/09/52 67. 6 1. NW 55.

04/29/53 67. 61 • SE 55.

04/30/54 67. 48. SE 43.

04/12/55 63. 4 1. E 37»,

10/30/5£. 63. 58. SW 53.

05/23/57 63. 47. N 43.

01/31 /58 63. 40. M 36.

05/22/59 63. 54. W 49.

07/27/60 20. 56. NW 61 . 04/25/61 20. 65. NW 7 1.

03/11/62 20. 40. SW 44.

05/05/63 20. 42. S 46.

07/09/64 20. 47. N 5 1.

07/24/65 20. 49. SE 54.

1 1/27/66 20. 38. NW 42.

02/15/67 20. 42. SW 46.

03/11/68 20. 40. NE 44.

07/27/69 20. 40. NW 44.

04/20/70 20. 40. S 44.

02/04/71 20. 57. SW 62.

06/25/72 20. 40. NW 44.

04/24/73 20. 54. E 59.

06/08/74 20. 66. SE 72.

05/20/75 20. 43. W 47.

01/23/76 20. 28. SW 31.

03/28/77 20. 34. SW 37.

34
Q > <M Z N < W H

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Q. X

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c, ^ CM tn N CM o a n

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(\J CO (\J P) N — N * (0 CO in * a N

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35
FRESNO. CALIFORNIA « I 939- 1975

THE SAMPLE NUMBER OF OBSERVATIONS = 37.00

THE SAMPLE MEAN = 34.43

THE SAMPLE STANDARD DEVIATION = 4.75

THE SAMPLE MINIMUM = 26.84

THE SAMPLE MAXIMUM = 46.50

DATE ANEMOMETER

ELEVAT10N(FTI

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEEDI

06/14/39 35. 47. SE 47.

09/27/40 34. 27. NW 27.

10/02/41 34. 36. N 36.

12/25/42 34 » 32. NW 32.

04/08/43 34. 30. NW 30.

04/08/44 34 » 36. NW 36.

03/23/45 34. 34. NW 34.

03/03/46 34 « 41. NW 41 . 1 1/05/47 34 at 34. NW 34.

02/10/48 34. 42. NW 42.

12/10/49 42. 43. NW 41.

04/08/50 42. 34 o S 33.

02/11/51 42. 38. W 37.

05/19/52 42. 38. N 37.

10/21/53 42. 31 . NE 30.

02/14/54 42. 35. SW 34.

04/01/55 42. 36. NW 35.

01/26/56 42. 29. S 28.

03/21/57 42. 30. NW 29.

02/04/58 42. 29. SW 28.

10/29/59 42. 40. NE 38.

02/13/60 42. 28. NW 27.

08/05/61 42. 31 . S 30.

03/09/62 20. 33. NW 36.

03/31/63 20. 34. NW 37.

03/02/64 20. 41 • NW 45.

01/07/65 20. 30. NW 33.

12/06/66 20. 30. NW 33.

01/24/67 20. 29. SE 32.

05/20/68 20. 29. NW 32.

03/03/69 20. 30. NW 33.

04/13/70 20. 29. NW 32.

02/25/71 20, 35. NW 38.

06/09/72 20. 32. NW 35.

04/01/73 20. 36. NW 39.

12/03/74 20. 31 • SE 34.

03/07/75 20 9 31 . S 34.

36
RETURN PERIOD

(IN YEARS)

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

20.0

30.0

37.0

40.0

50.0

60.0

70. 0

80.0

90.0

100.0

200.0

300.0

400.0

500.0

600.0

700.0

800.0

900.0

1000.0

2000.0

3000.0

4000.0

5000.0

6000.0

7000.0

8000.0

9000.0

10000.0

50000.0

100000.0

500000.0

1 000000.0

PREDICTED EXTREME W BASED ON

EXTREME VALUE TYPE

DISTRIBUTION

33.69

35.78

37. 12

36. 11

38.90

39.55

40. 1

40.60

41 .04

43.85

45.46

46.29

46.60

47,48

48.20

48.81

49.33

49.79

50. 21

52.92

54,51

55.63

56.50

57.21

57.81

58.34

56.80

59.21

61.91

63.49

64.62

65.49

66.20

66. 80

67.32

67.78

66.19

74.47

77. 18

83.46

86. 17

NO ESTIMATED

STAN. DEV.

1 SAMPL. ERROR

CRAMER-RAO

.72

• 88

1.00

1.10

1.18

1.25

1 .31

1 .36

1 ,41

1 .72

1 .91

2.00

2.04

2. 14

2,23

2.30

2.36

2.41

2.46

2.78

2.97

3. 1

3.21

3.30

3.37

3.43

3.49

3.53

3.86

4.05

4. 19

4,29

4.38

4,45

4.51

4.57

4.62

5.37

5.70

6.46

6.79

ESTl MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

.72

• 91

1 .08

1 .21

1.32

1.41

1 .49

1.57

1.63

2.06

2.31

2.44

2.49

2.63

2.75

2.64

2.93

3.00

3.07

3.50

3.76

3.94

4.08

4.19

4.29

4,38

4,45

4.52

4.96

5.21

5.40

5.54

5.65

5.75

5.84

5.91

5,98

7.00

7^44

8.47

8.91

37
RED BL.UFF. CALIFORNIA < 1945-1977)

THE SAMPLE NUMBER OF OBSERVATIONS 33.00

THE SAMPLE MEAN 52.11

THE SAMPLE STANDARD DEVIATION 7.37

THE SAMPLE MINIMUM 40.50

THE SAMPLE MAXIMUM 67.28

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATIONtFTJ AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

02/02/45 26. 40. SE 42.

1 1/18/46 26. 44. SE 46.

0 1 /27/47 26. 42. SE 44 •

I 2/05/48 26. 50. SE 52.

02/06/49 26. 47. SE 49.

01 /13/50 26. 59. SE 61.

1 2/04/5

35. 59. SE 58.

12/06/52 35a 60. SE 59.

03/19/53 35. 63. SE 62.

01/17/54 35. 50. SE 49.

12/22/55 35. 51. SE 50.

02/21/56 35. 61. SE 60.

02/23/57 35. 43. SE 43.

02/24/58 35. 60. SE 59.

02/14/59 35. 41. SE 41.

02/08/60 35 • 47. SE 47.

04/21/61 35 9 50. SE 49.

10/12/62 35 « 68. SE 67.

0 1/31/63 35 . 56. SE 55.

01/20/64 35. 56 • SE 55.

09/16/65 20. 50. NE 55.

12/04/66 20. 45. SE 49.

12/17/67 20. 56. SE 6 1.

01/29/68 20. 45. SE 49.

01/26/69 20 . 57. SE 62.

11/27/70 20. 56. SE 61.

12/12/71 20. 46. SE 50.

12/21/72 20. 42. SE 46.

10/22/73 20. 48. S 53.

03/29/74 20. 47. SE 51.

03/21/75 20. 42. SE 46.

03/24/76 20. 37. SE 41 • 12/14/77 20® 40. S 44.

38
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER- RAO

ESTIMATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3.0

4. 0

5.0

6.0

50.98

54. 17

56.20

57.71

58.91

1.18

1 .44

1 .64

1.60

1 .94

1 • 18

1.50

1 .77

1 .98

2. 16

7.0

8. 0

9.0

10.0

20.0

59. 90

60.76

61 .50

62. 16

66.43

2.05

2.15

2.24

2.31

2.83

2.32

2.45

2.57

2.68

3.38

30.0

33.0

40.0

50.0

60. 0

68.89

69.46

70.62

71 .96

73.05

3.13

3.21

3.35

3.52

3.66

3.80

3.90

4.09

4.32

4.51

70.0

80.0

90.0

100.0

200.0

73.97

74.77

75.48

76. 10

80.23

3.77

3.88

3.96

4.04

4.57

4.67

4.81

4.93

5.04

5.75

30 0.0

400.0

500. 0

600.0

700. 0

82.64

84.35

85.68

86.76

87.67

4. 88

5.10

5.27

5.41

5.53

6.17

6.47

6.70

6.89

7.05

800. 0

900.0

1000.0

2000.

3000.0

88.47

89. 17

89.79

93.91

96.31

5.63

5.73

5.81

6.34

6.65

7.19

7.31

7.42

8.14

8.56

4000.

5000.0

6000.0

7000.0

8000.0

98. 02

99.34

100.43

101.34

102. 13

6.87

7.05

7. 19

7.31

7.41

8.86

9.09

9.28

9.45

9.58

9000.0

10000.0

50000.

100000.0

500000.0

102.83

103. 46

1 13. 01

117. 12

126.68

7.50

7.58

8.83

9.37

10.62

9.71

9.82

11.50

12.22

13.91

1 000000.0 130.79 11. 16 14.63

39
SACRAMENTO, CALIFORNIA (1949-1977). REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 29.00

THE SAMPLE MEAN = 46.01

THE SAMPLE STANDARD DEVIATION = 10.24

THE SAMPLE MINIMUM = 33.61

THE SAMPLE MAXIMUM = 67.78

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

*frU ® OO . OH

SAX yc^ A A A o o . O O «

i ^X UOXO I o o .

1 o,/A^ ye^-o A tL/ \J f f ^£L A A T A O O .

1 1 / 13/53 40 • 70 • SE 6 8.

01/17/54 40 • 60. SE 58.

12/19/55 40. 59. SE 57.

01/25/56 40. 52. S 50.

01/13/57 69. 42. SW 38.

02/24/58 69. 42. SE 38.

01/05/59 69. 56. SW 50.

02/01/60 69. 40. SE 36.

10/07/61 21 • 40. NW 43.

10/12/62 21. 42. SW 46.

03/22/63 21 e 34. w 37.

04/22/64 21 « 37. SW 40.

09/16/65 21 . 42. NW 46.

04/17/66 21. 36. SW 39.

02/05/74 21. 42. N 46.

06/29/68 21. 38. N 41.

02/24/69 21. 35. SE 38.

01/23/70 2 1 « 35. SW 38.

01/02/71 21. 36. N 39.

01/03/72 21. 37. NW 40.

01/18/73 21. 31. SE 34.

02/05/74 21 . 44. N 48.

03/25/75 21. 43. N 47.

04/15/76 21 . 34. NW 37.

03/27/77 21 • 32. N 35.

^0
a. • o

Q > a. ui uj a

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to

iDtMN*-" •tf^-^NN oor)N-<a) cMCNjoiocj <»-(Dro.-<t ir)roa>voo> ocovooo ooif)<t-'— oo Ncjioo^w *iocoa>o if)voo-*>o o^^ro^in — ir)ovw<t iO(do>o>o — <tNow toino — 'O ^ rtCMWNro nmnroin ininvo^ovo >o N N S 03 (Jl0^<^OO 000<MW rOfOIO<»'<t * <! S CO O — M M M ^ (\J (\J

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f z CM 10 * in CO 0^ o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o a CM CM 10 <t in o r- CO 0> o o o o o o o o o o o o o o o o o o o o o o o z CM ro * in >o s CD 0> o o o o o o o o o o o o o o

CM ro in N CO (J> o o o o o

Ul in o o o

m o
SAN OIEGO. CALIFORNIA ( 1940-1977) • REFER TO SECT, 2,2

THE SAMPLE NUMBER OF OBSERVATIONS = 38,00

THE SAMPLE MEAN = 34,53

THE SAMPLE STANDARD DEVIATION = 4,46

THE SAMPLE MINIMUM - 25,55

THE SAMPLE MAXIMUM = 46,55

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

12/24/40 60, 38, SW 35.

02/11/41 60, 41, SW 37.

03/ 14/42 60« 40, SW 37.

01/23/43 60, 47, SE 43*

1 1/11/44 60, 51

,

SE 47.

03/23/45 60, 46, SW 42.

03/30/46 60, 38, s 35,

1 2/05/47 60, 29, s 26.

03/24/48 60, 34, s 31.

1 1/10/49 60, 34, SW 31.

0 1 /08/50 60, 28, SW 26.

03/01/51 60, 35, SW 32.

03/07/52 60 , 45, s 41,

02/23/53 60, 30 • s w 27,

\J f A U *J •» w, >jife*-j -, w 01/18/55 60 , 39. SW 36.

04/13/56 60, 32. s 29.

04/20/57 60, 34, SW 31.

04/03/58 60. 37. s 34.

02/11/59 60, 30. s 27.

1 1/20/60 60, 33. SW 30.

10/08/61 21, 31. N 34,

01/20/62 21 , 31 • s 34.

03/16/63 21, 32. SE 35.

03/02/64 21 . 34. NW 37,

04/08/65 21 . 33, s 36.

1 1/07/66 21 , 33. s 36.

12/18/67 21, 32, s 35.

03/08/68 21 • 32. SW 35.

02/25/69 21, 35. s 38.

02/09/70 15, 34. s 39.

01/02/71 15. 30. w 35.

1 1/14/72 15, 29. SE 34.

02/11/73 15, 33. s 38.

03/08/74 20, 33. SW 36.

1 1/28/75 20, 30. w 33.

04/15/76 20. 32, w 35.

03/01/77 20. 32. NW 35,

42
RETURN PERIOD

UN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTIMATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4. 0

5.0

6.0

33.84

35.77

37. 01

37.92

38.65

• 66

.81

.93

1.02

1.09

.66

.84

1 .00

1.12

1.22

7.0

8.0

9.0

10.0

20.0

39.25

39.77

40.22

40.62

43.22

1.16

1.21

1.26

1.30

1 a60

1 .31

1.38

1 .45

1.51

1.91

30.0

38.0

40.0

50. 0

60.0

44.71

45.57

45.76

46.57

47. 23

1.77

1.87

1 .89

I .98

2.06

2.14

2.28

2.31

2.44

2.54

70.0

30.0

90.0

100.0

200.0

47.79

48.28

48.70

49.08

51.59

2. 13

2.19

2.24

2.28

2.58

2.63

2.71

2.78

2.84

3.24

300.0

40 0.0

500. 0

600.0

700.0

53.05

54.09

54.89

55.55

56. 1

2.75

2.88

2.97

3.05

3.12

3.48

3.65

3.78

3.89

3.98

800.0

900.0

1 000.0

2000.0

3000.

56.59

57.01

57.39

59.89

61.35

3.18

3.23

3.27

3.58

3.75

4.05

4.12

4.18

4.59

4.83

4000.0

5000,0

6000.0

7000.

8000.0

62.38

63. 19

63.84

64.40

64.88

3.88

3.97

4. 05

4. 12

4. 18

5.00

5.13

5.24

5«33

5.41

9000.0

10000.

50000.0

100000.0

500000.0

65.30

65.68

71.48

73.97

79.77

4.23

4.28

4.98

5.28

5.99

5.47

5.54

6.48

6.89

7.84

1000000.0 82.27 6.29 8.25

^3
DENVER, COLORADO (1951-1977J. REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 27.00

THE SAMPLE MEAN = 49.16

THE SAMPLE STANDARD DEVIATION = 4.73

THE SAMPLE MINIMUM - 41.64

THE SAMPLE MAXIMUM = 61.30

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

07/20/51 40. 43. S 42.

03/12/52 40. 53. NW 51.

12/10/53 40. 51. NE 49.

03/12/54 40. 45. NE 44.

03/31/55 40. 49. N 47.

03/27/56 40. 49. W 47.

04/21/57 40. 52. SE 50.

10/20/58 40. 45. NW 44.

1 1/23/59 40. 45. NW 44.

04/16/60 40. 56. NW 54.

12/21/61 20. 49. W 54.

04/07/62 20. 48. W 53.

04/15/63 20. 47. SW 51.

05/05/64 20. 43. SW 47.

07/25/65 20. 56. SW 61.

04/02/66 20. 45. NW 49.

12/06/67 20. 42. NW 46.

12/12/68 20. 39. W 43.

01/08/69 20. 46. SW 50.

02/03/70 20. 40. NE 44.

04/18/71 20. 47. SE 51.

01/11/72 20. 42. SW 46.

12/12/73 20. 49. NW 54.

06/13/74 20. 43. NW 47.

12/27/75 20. 45. NW 49.

01/30/76 20. 53. N 58.

03/11/77 20. 47. N 51.
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE X DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL, ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6.0

48.44

50.54

51 .88

52.88

53.67

.83

1 .02

1.17

1.28

1.37

.84

1 .06

1 .25

1.41

1 .54

7.0

8.0

9.0

10.0

20.0

54.32

54. 89

55.38

55.81

58.63

1 .45

1 .52

1 .59

1 .64

2.01

1 .65

1 .74

1 .83

1 .90

2.40

27. 0

30.0

40.0

50.0

60.0

59.83

60.25

61 .40

62.28

63. 00

2.17

2.22

2.38

2.50

2.60

2.62

2.70

2.91

3.07

3.20

70.0

80. 0

90.0

100.0

200.0

63.61

64. 13

64.60

65.01

67.74

2.68

2.75

2.81

2.87

3.25

3.31

3.41

3.50

3.57

4.03

300.0

400.0

500. 0

600.0

700.0

69.33

70.45

71.33

72. 04

72.65

3.47

3.62

3.74

3.84

3.93

4.38

4.59

4.76

4.89

5.00

800.0

900.0

1000.0

2000.

3000.0

73. 17

73.63

74.04

76. 76

78.35

4.00

4.06

4. 12

4.50

4.72

5. 10

5. 19

5.27

5.78

6.08

4000.0

5000.0

6000.0

7000.0

8000.0

79.47

80.35

81.06

81.66

82. 19

4.88

5.00

5. 10

5.19

5.26

6.29

6.46

6.59

6.70

6.80

9000.0

10000.0

50000.0

100000.0

500000.0

82.65

83.06

89.36

92.08

98.38

5.32

5.38

6.27

6.65

7.54

6.89

6.97

8. 16

8.68

9.87

1000000.0 101.10 7.92 10.39
GRAND JUNCTION. COLORADO (1547-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = THE SAMPLE MEAN = THE SAMPLE STANDARD DEVIATION = THE SAMPLE MINIMUM = THE SAMPLE MAXIMUM =

DATE ANEMOMETER FASTEST MILE WIND SPEED

ELEVATION(FT) AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

09/30/47 32. 61. S

05/07/48 32. 52. S

05/24/49 32. 56. NW

06/07/50 59. 57. S

06/01/51 59. 66. S

06/26/52 59. 60. S

05/27/53 59. 61. sw 03/23/54 59. 65. s 04/02/55 59. 59. w 06/15/56 59. 56. sw 08/08/57 59. 56. w 02/25/58 59. 56. sw 03/03/59 59. 49. NW

04/23/60 59. 56. S

05/16/61 59. 49. NW

07/25/62 22. 48. NW

07/12/63 22. 44. N

08/26/64 22. 49. W

06/04/65 22. 49. NE

05/11/66 22. 65. NW

02/14/67 22. 56. W 05/30/68 22. 42. NE

06/25/69 22. 48. NW

05/20/70 22. 50. SW

03/17/71 22. 43. w 08/08/72 22. 45. SW

06/28/73 22. 47. NW

04/09/74 22. 45. SW

03/20/75 22. 47. SW

04/25/76 22. 49. s 05/12/77 22. 47. s

31 .00

52.67

5.40

44.82

69.85

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

61 . 52.

56.

52.

60.

55.

56.

59.

54.

5 1.

51 . 51.

45.

51.

45.

52.

47.

53.

53.

70.

60.

45.

52.

54.

46.

48.

51.

48.

51.

53.

51.

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vO N CD Qi 01 CO CO 00 (0 OO 0 O N O CO

01 (^ Oi o o

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in in CM in N

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N lO in ~< lO

in o o s lO <M r) o <» N

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<-• 10 in lO N

in in in in in CO CO 01 o n

in in in lo lO lO * N 01 ovO lO O lO N

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CD CO ID 01 01

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00 01 s in N o o cij n in

QO

a (0 lu a

a <

UJ z >

q:3 Z H •-< UJ w

q:

o o o o o

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o o o o o

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o o o o o o o o o o o o o o o

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o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o

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CM n in lO N 00 01 o o o o o

in o o o

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1^7
PUEBLO, C01.0RAD0 (1941- 19771

THE SAMPLE NUMBER OF OBSERVATIONS 37,00

THE SAMPLE MEAN 62.75

THE SAMPLE STANDARD DEVIATION 7.37

THE SAMPLE MINIMUM 48.71

THE SAMPLE MAXIMUM 79.15

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

09/07/41 36. 56. N 55 . 06/03/42 36. 57. NW 56.

0 1/21/43 36. 59. NW 58 . 1 1/25/44 36. 57. N 56 . 03/26/45 36. 63. SW 62.

10/29/46 36. 59. SW 58.

03/23/47 36. 57. w 56.

04/10/48 36. 57. w 56.

05/20/49 36. 59. w 58 • 01/17/50 36. 30. w 79.

12/22/51 36. 56. w 55.

03/12/52 36. 61. NW 60.

02/15/53 36. 56. W 55 . 03/18/54 36. 63. W 62.

04/12/55 34. 72. N 72.

03/27/56 34. 55. NW 55.

03/23/57 34. 68. N 68.

04/22/58 34. 49. N 49.

11/04/59 34. 61 . N 6 1.

04/16/60 34. 66. W 66.

04/18/61 34. 72. N 72.

08/15/62 21. 68. N 74.

04/15/63 21 . 64. SW 69.

07/28/64 21. 73. NE 79.

01/31/65 21. 59. W 64.

03/22/66 21. 56. N 6 1.

05/19/67 21 • 59. N 64.

04/03/68 21 • 49. N 53.

06/24/69 21 . 54. NW 59.

03/24/70 21. 52. N 56.

1 1/13/71 21 • 63. NW 68.

08/02/72 21. 59. N 64.

12/12/73 21. 63. NW 68.

03/02/74 21 • 59. W 64.

05/12/75 21. 65. N 70.

02/20/76 21. 63. N 68.

03/11/77 21 . 66. N 72.

^8
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL, ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH, OF MOM.

2.0

3.0

4.0

5.0

6.0

61 .60

64. 82

66.87

68.40

69.61

1.11

1.36

1 .55

1.70

1 .83

1.11

1 .41

1 .67

1 .87

2.05

7.0

8.0

9.0

10.0

20.0

70.61

71.47

72.23

72.89

77.21

1 .94

2.03

2.11

2. 19

2.67

2. 19

2.32

2.43

2.53

3.20

30.0

37. 0

40.0

50.0

60. 0

79.69

80.97

81 .44

82.79

83.89

2.96

3.11

3. 17

3.33

3.46

3.59

3.79

3.87

4.08

4.26

70.0

80.0

90.0

100.0

200.0

84.83

85.63

86. 34

86.98

91.15

3.57

3.66

3.75

3.82

4.32

4.41

4.54

4.66

4.76

5.43

300.0

400.0

500. 0

600.0

70 0.0

93.58

95.31

96,65

97.74

98. 66

4.61

4.82

4.98

5» 12

5.23

5.83

6.11

6.33

6.51

6.66

800. 0

900.0

1 00 0.0

2000.0

3000.

99.46

100. 17

100.80

104.96

107.39

5.32

5.41

5.49

5.99

6.29

6.79

6.91

7.01

7.69

8.09

4000.0

5000.0

6000.0

7000.0

8000.0

109. 1

110.45

111.54

112.47

113.27

6.50

6.66

6.79

6.90

7. 00

8.37

8.59

8.77

8.92

9.06

9000.0

10000.

50000.

100000.0

500000.0

1 13.97

1 14.61

124.25

128.41

138. 06

7.09

7.16

8.34

8.85

10.03

9. 17

9.28

10.86

11 .55

13.14

1000000.0 142.22 10.54 13.83

i|9
HARTFORD. CONNECTICUT C 1940-19771

THE SAMPLE NUMBER OF OBSERVATIONS 38.00

THE SAMPLE MEAN 45. 14

THE SAMPLE STANDARD DEVIATION 6.79

THE SAMPLE MINIMUM 34.35

THE SAMPLE MAXIMUM 66.79

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION < RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

04/06/40 44. 36. NW 34.

12/24/41 44. 45. S 43.

03/09/42 44. 41. S 39.

12/11/43 44. 45. NW 43.

09/14/44 44. 62. N 59.

1 1/20/45 44. 45. NW 43.

06/08/46 44. 52. N 50.

1 1/08/47 44. 41 . NW 39.

1 1/13/48 44. 41 . NW 39.

04/06/49 44. 44. SM 42.

1 1/25/50 44. 70. E 67.

1 1/26/51 44. 39. NW 37.

03/11/52 44. 57. SE 54.

02/15/53 44. 50. NW 48.

08/31/54 98. 56. NE 48.

11/21/55 98. 51 . NW 44.

03/16/56 98. 50. NE 43.

06/29/57 98. 45. N 39.

02/25/58 98. 50. W 43.

0 1/06/59 98. 49. NW 42.

09/12/60 20. 43. NE 47.

02/04/61 20. 39. N 43.

03/06/62 20. 39. NE 43.

04/04/63 20. 41 . NW 45.

01/21/64 20. 50. NW 55.

03/27/65 20. 38. NW 42.

07/19/66 20. 36. NW 39.

02/16/67 20. 53. SW 58.

03/01/68 20. 40. NW 44.

01/01/69 20. 37. NW 41 • 04/03/70 20. 42. NW 46.

03/04/71 20. 47. NW 51.

0 1/25/72 20. 49. NW 54.

01/20/73 20. 34. NW 37.

03/10/74 20. 42. NW 46.

04/04/75 20. 37. NW 4 1.

12/13/76 20. 42. NW 46.

03/24/77 20. 39. NW 43.

50
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51
WASHINGTON. D.C. (1945-1977)

THE SAMPLE NUMBER OF OBSERVATIONS 33.00

THE SAMPLE MEAN 48.25

THE SAMPLE STANDARD DEVIATION 6.47

THE SAMPLE MINIMUM 35.52

THE SAMPLE MAXIMUM 66.32

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

06/18/45 93. 42. S 36.

12/01/46 93. 52. NW 45.

11/03/47 93. 61 . NE 53.

03/15/48 93. 56. NE 49.

08/28/49 93. . 41 . SE 36.

1 1/25/50 113. 52. E 44.

03/13/51 113. 60. E 51.

1 1/21/52 1 13. 60. E . 51.

07/22/53 1 13. 49. SW 42.

1 0/15/54 113. 78. SE 66.

03/22/55 1 13. 50. SW 43.

02/25/56 1 13. 57. NW 48.

10/06/57 1 13. 63. N 54.

06/13/58 20. 40. SW 44.

02/11/59 20. 42. NW 46.

02/18/60 113. 54. NE 46.

02/25/6 1 20. 57. SW 62.

06/19/62 20. 42. NW 46.

04/23/63 20. 52. NW 57.

03/10/64 20. 43. SW 47.

02/25/65 20. 49. SW 54.

03/01/66 20. 38. w 42.

03/16/67 20. 42. NW 46.

06/24/68 20. 43. W 47.

12/27/69 20. 45. NW 49.

12/16/70 20. 43. E 47.

01/26/71 20. 47. NW 51.

06/21/72 20. 43. NW 47.

03/17/73 20. 38. SW 42.

12/01/74 20. 42. E 46.

04/04/75 20. 43. W 47.

07/15/76 20. 50. N 55.

05/08/77 20. 50. NW 55.

52
RETURN PERIOD

CI^ YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATEO

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3.0

4.0

5*0

6.0

47.25

50.09

51 .90

53.25

54.31

1 .03

1 .26

1.44

1 .58

1 .70

1.03

1 .31

1.55

1.74

1 .90

7.0

8.0

9.0

10.0

20.0

55.20

55.96

56.62

57.21

61 . 02

1.80

1 .88

1.96

2.03

2.48

2.04

2. 15

2.26

2.35

2.97

30.0

33.0

40.0

50*0

60.0

63.21

63.72

64.75

65.94

66.92

2.75

2.81

2.94

3.09

3.21

3.33

3.42

3.59

3.79

3.96

70.0

80.0

90.0

100.0

200.0

67.74

68.45

69.08

69.64

73.31

3.31

3.40

3.48

3.55

4.01

4.10

4.22

4.32

4.42

5.05

300.0

400.0

500. 0

600.0

700.0

75.46

76.98

78. 17

79. 13

79.95

4.28

4.48

4.63

4.75

4. 85

5.41

5.68

5.88

6.05

6.19

800.0

900.0

1000.0

2000.0

3000.0

80.65

81.28

81.83

85.50

87.64

4.94

5.02

5.09

5.56

5.84

6.31

6.41

6.51

7.14

7.51

400 0.0

5000.0

6000.0

7000.0

8000.0

89. 16

90.34

91.31

92. 12

92.83

6.03

6. 18

6.31

6.41

6.50

7.78

7.98

8.15

8.29

8.41

9000.0

10000.0

50000.0

100000.0

500000.0

93.45

94.01

102.52

106. 18

114.70

6.58

6.65

7.75

8.22

9.32

8.52

8.61

10.09

10.73

12.20

1000000.0 118.36 9.79 12.84

53
JACKSONVILLE. FLORIDA (1950-1977) CAUTION —• SEE APPENDIX 1

THE SAMPLE NUMBER OF OBSERVATIONS = 28.00

THE SAMPLE MEAN = 48.61

THE SAMPLE STANDARD DEVIATION = 10.14

THE SAMPLE MINIMUM s 34.46

THE SAMPLE MAXIMUM = 74.36

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

1 0/18/50 54. 72. E 6 7.

10/02/51 54. 42. NE 39.

10/20/52 63. 56. N 51.

02/12/53 63. 52. SW 47.

09/11/54 63. 46. S 42.

05/15/55 63. 46. NE 42.

06/26/56 63. 49. S 44.

09/09/57 63. 46. s 42.

02/01/58 63. 42. w 38.

12/12/59 63. 38. s 34.

09/11/60 63. 46. NE 42.

04/12/61 63. 48. SW 44.

06/14/62 63. 54. E 49.

12/31/63 63. 62. N 56.

09/09/64 63. 82. N 74.

09/08/65 63. 57. E 52.

06/09/66 63. 48. E 44 • 06/30/67 63. 76. NE 69.

06/06/68 63. 52. N 47.

06/05/69 63. 58. N 53.

02/01/70 63. 44. SE 40 « 07/01/71 21 . 47. NW 5 I a 08/06/72 21. 44. NW 48.

04/25/73 21 . 48. W 07/30/74 21 . 44. SE 48.

05/27/75 21 • 62. N 67.

09/03/76 21. 42. NW 46.

09/08/77 21 . 33. W 36.

5^
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55
KEY WEST, FLORIDA (1958-1976) CAUTION — SEE APPENDIX 1

THE SAMPLE NUMBER OF OBSERVATIONS 19,00

THE SAMPLE MEAN 50,98

THE SAMPLE STANDARD DEVIATION 17,23

THE SAMPLE MINIMUM 35,17

THE SAMPLE MAXIMUM 89,51

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

09/03/58 35, 59, SE 58.

1 1/25/59 35, 36. SE 36,

09/10/60 35, 65, NW 64*

09/07/61 35, 49« SE 48.

03/06/62 35, 36, NW 36.

10/06/63 35, 36, NE 36.

10/14/64 23, 73, S 78.

09/08/65 23, 81 , SW 86,

10/05/66 23, 84, SE 90.

07/09/67 23, 36, E 38*

10/16/68 23, 49, SE 52.

10/02/69 23, 40, SE 43.

10/20/70 23. 40, SE 43,

07/21/71 23. 39, E 42.

06/18/72 23. 43. SE 46.

02/09/73 23. 45, W 48,

06/25/74 23. 33. S 35.

09/07/75 23, 33. E 35.

04/06/76 23, 52. NW 55.

55
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* CM in CD * O S CM O O

\0 ^ f*) O

ro ^ CD in in oo - in -« n- N in (0 n-*ininin ioiovonoo ooo^oo— -<«cmcm* ininio>or«- CJi o

— CM « — (M CM CM

CM CM CM CM CM

— vo o 'O —

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n ro K 00 CM *

CM CM CM CM n tn

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CM CM O O <7> * in n <t O N N in CM * o in * CM

CM o> <^ o> o

ro o CM — cooo^tN o< n iS) <t *invOvO>0 vOSNNOO in -< in !o

CD 0^ ffi o

m in s CO CD o o o o «

* 00 -< * ifi CM CM n n n

CO O N

n •* in in ^ <f N c^vO <) lO >0 N

s CO in O"

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N N <^ O n 1^ — « CM CM CM

Q , Z CM O

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(- o D D N oo ro o CM N n -0 CM in ^0 >0 CM —

n in in in 01 in N m in lO o <o O CO O 00 X -1 m n CM n o in * CO <S n « N o 00 oo n o in ro N « in o o> CM O in in CM

UJ z < • a > o: N •* o n >o o in OO N lO (0 n O in n o in o * CD lO <t oo 00 oo lO 10 01 in oo CM (0 CM o in m -0 N N CD 00 o O CM CM CM in « oo CO (71 01 CM < in lO CO 01 01 o o lO 01 UI Q UI 10 II CM CM (M (M CM CM CM CM ro < «

I- UJ I «

U CO UJ Q < « < q: s O CQ H Z

UJ X <

a UJ v9

o

o

QC (A

Ui a

a <

ui z > a

3 Z

UJ w

O O O O O

CM m * in lO o o o o oN CD Oi O 01 o o o o o

O O O O o

CM ro in lO

o o o o o

o o o o o

N CO Oi o o

'H CM

o o o o o

o o o o o

o o o o o

(0 •* in >o N

o o O o o o o o o o o o o o o o

o o o o o o o o o o o o o o o

to

o o o o o o o o o o o o o o o o

CD 0^ o o o o o o o o o o o o o o

CM ro t in <o s CO Oi o o o o o

in o o o

in o

57
TAMPA, FLORIDA (1942-1951) CAUTION SEE APPENDIX 1

THE SAMPLE NUMBER OF OBSERVATIONS = 10,00

THE SAMPLE MEAN = 49,57

THE SAMPLE STANDARD DEVIATION = 8,09

THE SAMPLE MINIMUM = 37.42

THE SAMPLE MAXIMUM = 65.11

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

08/18/42 43. 47. S 45.

06/06/43 43. 49. SW 47.

10/19/44 43. 68. NE 65.

06/24/45 43. 52. SW 50.

02/27/46 43. 59. SW 56.

03/01/47 36. 56. SW 55.

07/31/48 36. 38. S 37.

08/27/49 36. 54. SW 53.

09/05/50 36. 45. S 44.

04/01/51 36. 43. SW 42.

58
RETURN PERIOD PREDICTED EXTREME WIND ESTIMATED ESTIMATED

(IN YEARS) BASED ON STAN. DEV. STAN. DEV.

EXTREME VALUE TYPE 1 SAMPL. ERROR SAMPL. ERROR

DISTRIBUTION CRAMER-RAO METH. OF MOM.

2.0

3.0

4.0

5.0

6.a

48.44

52.29

54.75

56.58

58.02

2.34

2.87

3.27

3.59

3. 86

2.35

2.98

3.52

3.95

4.32

7.0

8.0

9.0

10.0

10.0

59.23

60.26

61 . 16

61 .96

61. 96

4.09

4.28

4.46

4.61

4.61

4.62

4. 89

5.13

5.34

5.34

20.0

30.0

40.0

50.0

60.0

67. 13

70.10

72. 19

73.81

75. 13

5.64

6.25

6.68

7.02

7.29

6.75

7.57

8.16

8. 62

8.99

70.0

80.0

90. 0

100.0

200.0

76.25

77.21

78.06

78.82

83.81

7.52

7.73

7.90

8.06

9. 12

9.31

9.58

9. 82

10.04

1 1 .47

300.0

400.0

500.0

600.0

700.0

86.73

88. 80

90.40

91 .71

92. 82

9.73

10.17

10.51

10.79

1 1 .03

12.30

12.90

13.36

13.73

14.05

800.0 93.78 11.23 14.33

900.0 94.62 11.41 14.57

1000.0 95.38 11.57 14.79

2000.0 100.35 12.64 16.23

3000.0 103.26 13.26 17.07

4000.0 105.33 13.70 17.67

5000.0 106.93 14.05 18.13

6000.0 108.24 14.33 18.51

7000.0 109.34 14.57 18.83

8000.0 110.30 14.77 19.11

9000.0 111.15 14.95 19.35

10000.0 111.90 15.12 19.57

50000.0 123.45 17.60 22.92

100000.0 128.43 18.67 24.37

500000.0 139.99 21.17 27.72

1000000.0 144.96 22.24 29.17

59
ATLANTA, GEORGIA (1935-1976). SEE SECT. 2.1

THE SAMPLE NUMBER CDF OBSERVATIONS = 42.00

THE SAMPLE MEAN = 47.41

THE SAMPLE STANDARD DEVIATION = 9.25

THE SAMPLE MINIMUM = 32.10

THE SAMPLE MAXIMUM = 75.53

DATE ANEMOMETER

ELEVATION{FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

53 a * ^ a NE -J • 53 a 53 . W A 0

^«^ a •T ^ • w " A n - a TO -

f £ a ^5 w . s n -

r ^ a 07a ^ If ^ 0 . nft/l"^/A1 r ^ a *» ^ a A A -

1 P /C\ 1 A P 79r ^ •a 0 0 • W

\J*J/ Z. A. ^ 't O 7r ^P •a *r 0 . c A T « 7r ^P a A7 A P 7 O D*fr a IN W A*fr 0n . 7P 0V .

Ul 00.

7 P • l>i W O QV .. 7r ^P a A P KI Ul IN 11 Or.

05x0 I /49 72 a 4 0. N W 36 . 03/27/50 72a 49. S 44.

12/15/51 72 a 44a NW 39.

09/02/52 72. 49a N 44a

06/10/53 72. 70a NE 62a

07/02/54 72. 56a SE 50.

07/04/55 72. 51a SE 45a

04/15/56 72. 68a SW 61a

06/28/57 72. 51 a SW 45a

04/22/58 72. 52a NW 46a

0 1/21/59 72. 46a W 4 1a

03/22/60 72. 36. W 32a

04/17/61 72. 56. w 50a

04/09/62 72. 39. w 35.

12/31/63 20. 48. E 53.

07/22/64 20. 42. SE 46.

1 1/27/65 20. 34. W 37.

07/15/66 20. 52. N 57.

06/18/67 20. 35a NW 38.

12/28/68 20. 39. SW 43.

03/23/69 20. 69. SE 76.

06/13/70 20. 33. NW 36.

05/12/71 20. 63. SW 69.

08/20/72 20. 44. w 48a

60
05/19/73 20, 42, W 46

03/21/74 20. 48. W 53

12/31/75 20. 49. SW 54

02/18/76 20. 47. M 51

61
a

• o o

o > s

ai UJ a

1- o UJ u. CO n >o CO ro N (0 o o -0 in a« ro in in (\i in C\J o -0 C 04 01 < o ro W * U) N oo (^ s IT) CO o oo CO OJ o in CO ro in \0 S o> S in

f • z • C\J fy cvj w CVI C\J ro <f * Ul 10 in in in >o N N N CO CD Oi o o o o o o CM fO in

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HI UJ IT tr o UJ o in (0 o< N If) c?> N N o o CO ro in N o in o * 01 ro <t <* 10 04 04 < O CM ro * to * ^ o f\J to in o * o 00 o M ro o •* « oo 0> 04 ro <t 00 CO

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oo ~t « ro <t >0 S N N Nin vo r^ 00 ro N N h- «) N 01 -< CM *

(0 CO 01 01 01 in >o i£) 04 in01 Oi 01 o o

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a

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a in

UJ a.

a. <

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ccD Z

UJ

a.

o o o o o

• 9 • • e 04 ro -4m o o o o o o o o o o o o o o o o o o o o o

N oo 01 o o

<^ OJ O O 04 O O

ro * * in lO o o o o o

N CD Oi O O

-< 04 o o o o o

o o o o o

10 * in lO s

o o o o o o o o o o o o o o o o

9 o o o o o o o o o o o o o o o o

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00 01 o o o o o o o o o o o o o o

OJ ro <t in >0 r^ 03 01 o o o o o

in o o o

in o

62
MACON. GEORGIA <1950-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 28.00

THE SAMPLE MEAN = 45.01

THE SAMPLE STANDARD DEVIATION = 7.59

THE SAMPLE MINIMUM = 31.99

THE SAMPLE MAXIMUM = 59.68

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

03x27/50 74 . 56 . SW 50.

02/01 /574 . 47. S w 4 2.

05/08/52 74 . 65. SE 5 8.

07/15/53 74 . 50 . SE 4 4.

03/13/54 74. 60. S 53.

05/21 /55 74. 36. SE 32.

04/15/56 74. 57. S 51 . 04/01/57 74. 57. SE 51.

01/31/58 74. 47. SM 42.

01/21/59 74 . 47. SW 42,

02/04/60 74. 36. NE 32.

04/09/61 74. 45. SE 40.

02/19/62 74. 38. E 34.

07/06/63 23. 38. NW 40.

02/19/64 23. 35. W 37.

02/25/65 23. 35. W 37.

02/13/66 23. 56. SW 60.

07/22/67 23. 42. SW 45.

03/22/68 23. 42. s 45.

06/28/69 23. 50. NW 53.

04/02/70 23. 38. W 40.

01/15/71 23. 40. NW 43.

03/02/72 23. 45. SW 48.

11/21/73 23. 48. NW 5 1.

03/21/74 23. 54. SW 58.

05/16/75 23. 46. SW 49.

07/04/76 23. 43. SW 46.

06/06/77 23. 36. NW 38.

63
RETURN PERIOD

( I N YEARS)

2. 0

3.0

4.0

5.0

6, 0

7.0

8. 0

9.0

10.0

20.0

28.0

3 0.0

40.0

50.0

60. 0

70. 0

30.0

90.0

100.0

200.0

300. 0

400. 0

500. 0

600.0

700. 0

800. 0

900.0

I 000.0

2000.0

3000.0

4000.0

5000.0

6000.0

7000.

8000,0

9000.0

10000.0

50000.0

100000.0

500000.0

1 000000.

PREDICTED EXTREME W BASED ON

EXTREME VALUE TYPE

DI STRI BUTION

43.85

47. 18

49.31

50.89

52. 14

53. 19

54. 08

54.86

55. 55

60.02

62.15

62.59

64.40

65.80

66.94

67.91

68.74

69.48

70. 14

74.46

76. '98

78.77

80.15

81.29

82.24

83.07

83.81

84.46

88.76

91.28

93.07

94.45

95.59

96.54

97.37

98. 1 0

98.76

108.75

113.05

123. 06

127.36

ND ESTIMATED

STAN. DEV.

1 SAMPL. ERROR

CRAMER-RAO

1 .31

1.61

1 .84

2.02

2.16

2.29

2.40

2.50

2.59

3.16

3.44

3. 50

3.74

3.93

4.09

4.22

4.33

4.43

4.52

5. 1

5.46

5.70

5. 89

6. 05

6.18

6.30

6.40

6.49

7. 08

7.43

7.68

7.87

8. 03

8.17

8.28

8.38

8.47

9.87

10.47

1 1 . 86

12.47

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

1 .32

1 .67

1 .97

2.22

2.42

2.59

2.74

2.88

2.99

3.78

4.17

4.25

4.58

4.83

5.04

5.22

5.37

5.51

5.63

6.43

6.90

7.23

7.49

7.70

7.88

8.03

8.17

8.29

9. 10

9.57

9.90

10.16

10.38

10 .56

10.71

10.85

10.97

12.85

13.66

15.54

16.35

64
SAVANNAH, GEORGIA (1946-1977) CAUTION -- SEE APPENDIX 1

THE SAMPLE NUMBER OF OBSERVATIONS = 32.00

THE SAMPLE MEAN = 47.64

THE SAMPLE STANDARD DEVIATION = 9.57

THE SAMPLE MINIMUM = 30.97

THE SAMPLE MAXIMUM = 79.34

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

02/10/46 51. 62, SW 58.

10/15/47 51 . 85. NE 79.

04/01/48 51. 64. SW 60.

08/28/49 51 • 52. SE 49.

04/27/50 51 . 58. SW 54.

07/16/51 33. 51. SE 5 1.

06/02/52 33. 58. SE 58.

06/13/53 33. 66. E 66.

08/17/54 33. 58. N 58.

01/13/55 33. 46. NW 46,

09/24/56 33. 43. SW 43.

08/02/57 33. 44. N 44.

02/01/58 33. 41 . NW 41.

09/29/59 33. 56. NW 56.

02/18/60 33. 44. W 44.

09/05/61 33. 47. NW 47.

09/06/62 33. 45. W 45.

04/12/63 33. 40. N 40.

07/09/64 33. 39. N 39.

05/12/65 33. 42. N 42.

02/13/66 33. 40. SW 40.

05/07/67 33. 31 . SW 31 . 07/31/68 20. 36. W 39.

07/02/69 20. 36. E 39.

06/27/70 20. 42. NW 46.

02/13/71 20. 38. W 42.

06/10/72 20. 41 . NW 45.

03/17/73 20. 40. W 44.

03/21/74 20. 39. w 43.

01/25/75 20. 36. w 39.

02/01/76 20. 42. NW 46.

09/10/77 20. 47. W 5 1.

65
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tr too

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a) >o CM N (JN * CO N CO in •* CO s

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UJ> CM P) •* in lO N CO ON o o o CN( o o o o o o o o o o o o o o o o o o o o o o o o o o o o

9 o

QC CNJ P) P) * in lO 03 tJl o o o o o o o o o o o o o o o o o o o o o o o

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UJ in o o o

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66
BOISE. IDAHO (1940-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 38.00

THE SAMPLE MEAN = 47.83

THE SAMPLE STANDARD DEVIATION = 5.29

THE SAMPLE MINIMUM = 37.60

THE SAMPLE MAXIMUM = 61.92

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

ANO DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

02/28/40 49. 47. SW 44.

01/06/41 49. 50. SE 47.

1 1/15/42 49. 56. NW 53.

07/03/43 44. 54. SW 52.

07/29/44 44. 61. W 58.

07/13/45 44. 50. SW 48.

04/29/46 44. 43. NW 41.

10/20/47 44. 47. NW 45.

06/30/48 44. 50. SW 48.

08/22/49 44. 50. SE 48.

10/26/50 44. 56. SE 53.

07/24/51 44. 56. S 53.

12/06/52 56. 49. SE 45.

1 1/23/53 56. 57. NW 53.

02/17/54 56. 56. M 52.

06/23/55 58. 45. NW 41.

05/26/56 58. 47. W 43.

03/09/57 58. 52. M 48.

03/31/58 58. 49. W 45.

04/06/59 19. 38. NW 42.

09/03/60 19. 50. SE 55.

12/20/61 19. 38. SW 42.

06/18/62 19. 38. SW 42.

08/09/63 19. 56. SE 62.

12/20/64 19. 40. SW 44.

03/16/65 19. 36. NW 40.

11/16/66 19. 45. SW 50.

06/21/67 19. 34. W 38.

07/19/68 19. 42. NW 46.

01/26/69 19. 41 . SW 45.

06/26/70 19. 45. NW 50.

03/30/71 19. 44. NW 49.

05/20/72 19. 42. SE 46.

06/22/73 19. 47. SE 52.

02/26/74 19. 50. SW 55.

06/24/75 19. 42. SE 46.

03/22/76 19. 46. NW 51.

03/27/77 19. 42. NW 46.

67
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE I DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTIMATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6,0

47.01

49.33

50.81

51.92

52.79

.79

.96

1.10

1.21

1 .30

.79

1 .00

1.18

1 .33

1 .45

7. 0

8.0

9.0

10.0

20.0

53.52

54. 14

54.68

55. 17

58.28

1 .37

1 .44

1 .49

1 .55

1 .89

1 .55

1 .64

1 .72

1 .79

2.26

30.0

38.0

40.0

50.0

60. 0

60.08

61.12

61.34

62.32

63. 12

2.10

2.22

2.24

2.35

2.45

2.54

2.70

2.74

2.89

3.02

70-0

80.0

90.0

100,0

200.0

63.79

64.37

64.88

65.34

68.35

2.52

2.59

2.65

2.71

3.06

3.12

3.21

3.30

3.37

3.85

300.0

400.0

500. 0

600.0

70 0.0

70. 1 1 71 .36

72.33

73. 12

73.79

3.27

3.41

3.53

3.62

3.70

4.13

4.33

4.48

4.61

4.71

800. 0

900.0

1 000.0

2000.0

3000.

74. 37

74.88

75,33

78.34

80.09

3.77

3.83

3.88

4.24

4.45

4.81

4.89

4.96

5.44

5.73

4000.

5000.0

6000,0

7000.0

8000.0

81.34

82.31

83. 10

83.76

84,34

4.60

4.71

4.81

4. 89

4.96

5.93

6.08

6.21

6.32

6.41

9000.0

10000.

50000.

100000.0

500000.0

84. 85

85.3 1 92,28

95,28

102,26

5.02

5.07

5.90

6.26

7. 10

6,49

6.57

7.69

8.17

9.30

1000000.0 105.26 7.46 9.79

68
PQCATELLO. IDAHO (1939-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 39.00

THE SAMPLE MEAN = 53.34

THE SAMPLE STANDARD DEVIATION = 6.80

THE SAMPLE MINIMUM = 43.42

THE SAMPLE MAXIMUM = 71.58

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

12/10/39 31 • 56 . S 5 7.

05/04/40 31 . 43 . W 43.

1 2/16/4

31 . 45 . w 45.

1 1 / 15/42 31 . 56. w 57 . 0 1 /21 /43 31. 59. SW 6 0.

07/31 /44 31 . 43 . s 43 . 08/30/45 31 • 52 . N W 5 3.

02/24/46 31 . 52. Shi 53.

09/13/47 31 . 46. SW 46 . 04/17/48 31 . 43 . SW 43 . 02/07/49 43. 49. SW 47 . 01/13/50 33. 57. SW 57.

03/15/51 33. 52. SW 52.

01/14/52 34. 61 • SE 61.

05/21/53 34. 61 . w 6 1.

10/11/54 34. 54. w 54.

03/24/55 34. 72. W 72.

04/07/56 34. 61 . s 6 1 . 03/10/57 34. 47. SW 47.

05/31/58 34. 55. w 55.

1 1/12/59 34. 61 . SW 61.

04/14/60 34. 56. SW 56.

09/01/61 20. 57. w 62.

01/20/62 20. 47. s 51.

02/01/63 20. 57. w 62.

01/21/64 20. 42. s 46.

04/22/6 5 20. 46. SW 50.

1 0/20/66 20. 54. sw 59.

1 1/24/67 20. 48. SW 53.

07/16/68 20. 57. w 62.

12/21/69 20. 43. SW 47.

1 1/30/70 20. 43. SW 47.

03/30/71 20. 47. SW 5 1 . 01/10/72 20. 54. w 59.

12/30/73 20. 47. SW 5 1.

08/07/74 20. 53- SW 58.

02/20/75 20. 42. SW 46.

06/10/76 20. 43. SW 47.

59
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTIMATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3.0

4.0

5.0

6.0

52.30

55.22

57.09

58.48

59.58

1.00

1 .22

1 .39

1 .53

1.64

1.00

1 .27

1.50

1.68

1 .84

7.0

8.0

9.0

10.0

20.0

60.49

61.27

61.96

62.56

66.49

1 .74

1 .82

1.90

1 .96

2.40

1 .97

2.08

2.18

2.27

2.87

30.0

39.0

40.0

50. 0

60. 0

68.74

70.19

70.33

71 .56

72.56

2.66

2.83

2.84

2.99

3.10

3.22

3.45

3.47

3.67

3.83

70.0

80.0

90.0

100.0

200.0

73.41

74.14

74.79

75.37

79. 16

3.20

3.29

3.36

3.43

3.88

3.96

4.08

4.18

4.27

4.88

300.0

400.0

500. 0

600.0

700.0

81 .37

82.94

84. 16

85. 15

85.99

4.14

4.33

4.47

4.59

4.69

5.23

5.49

5.68

5.84

5.98

800.0

900. 0

1000.0

2000.

3000.0

86.72

87.36

87.94

91.71

93.92

4.78

4.86

4.92

5.38

5.64

6.10

6.20

6.29

6.90

7.26

4000.0

5 00 0.0

6000.0

7000.0

8000.0

95.49

96.71

97.70

98.54

99.27

5. 83

5.98

6. 10

6.20

6.23

7.52

7.71

7.87

8.01

8.13

9000.

10000.0

50000.0

100000.0

500000.0

99.91

100.48

109.25

113.03

121.81

6.36

6.43

7.49

7.94

9.00

8.23

8.33

9.75

10.37

11.80

1000000.125.58 9.46 12.41

70
CHICAGO MIDWAY . I LLI N-Q I S ( 1 943-1 977 )

THE SAMPLE NUMBER OF OBSERVATIONS = 35.00

THE SAMPLE MEAN = 47.02

THE SAMPLE STANDARD DEVIATION = 4.77

THE SAMPLE MINIMUM = 37.42

THE SAMPLE MAXIMUM = 58.57

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATIONCFT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

36 a 45. SW 4 4.

05/25/4 4 36 . 47. s 46 . 03/17/45 36 • 42. w 4 1.

1 1 /21 /4o 36 a 38 . w 37.

09/22/47 36 . 47. N 46 •

1 2/05/4 8 36 . 50. sw 49.

08/31 /49 33. 54 . N W 53.

Oo/Oo/o 0 38 . 54 . s 5 3.

04 /28/5

38. 50 • N W 49 .

1 1 /26/52 38 . 60 . SM 59 . 06/04/53 38. 50. W 49.

03/25/54 38. 51 . w 50.

03/22/55 38. 54. NW 53.

03/10/56 38. 46. SW 45.

03/15/57 38. 43. w 42.

1 1/17/58 48. 49. SW 46.

05/28/59 48. 51. w 48.

03/22/60 48. 42. NW 40.

03/27/61 48. 47. SW 44.

04/09/62 48. 45. w 42.

06/08/63 20. 49. N 54.

05/08/64 20. 47. sw 51.

12/24/65 20. 47. NE 51.

07/18/66 20. 39. w 43.

02/15/67 20. 51. SW 56.

I 1/28/68 20. 42. NE 46.

04/21/69 20. 38. W 42.

07/02/70 20. 39. NW 43.

11/01/71 20. 43. S 47.

01/24/72 20. 40. SW 44.

04/19/73 20. 42. SE 46.

07/14/74 20. 41 . W 45.

1 1/30/75 20. 43. s 47.

06/13/76 20. 40. E 44.

03/29/77 20. 47. s 51 .

71
RETURN PERIOD

( I N YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DI STRIBUTION

ESTIMATED

STAN, DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3.0

4.0

5. 0

6.0

46.28

48.37

49. 71

50.70

51 .49

.74

• 90

1 .03

1 . 13

1 .22

.74

.94

1.11

1.25

1 .36

7.0

8.0

9.0

10.0

20.0

52. 15

52.71

53.20

53.63

56.44

1 .29

1 .35

1 .40

1 .45

1.78

1 .46

1 .54

1 .62

1 .68

2.13

30.0

35.0

40. 0

50.0

60.0

58.06

58.67

59.20

60.08

60.80

1 .97

2.04

2. 1

2.21

2.30

2.39

2.49

2.57

2.72

2.83

70. 0

80.0

90.0

100.0

200.0

61.40

61 .93

62.39

62.80

65.52

2.37

2.44

2.49

2.54

2.87

2.93

3.02

3. 10

3.17

3.61

300. 0

400.0

500. 0

600. 0

700.0

67. 1 1 68.23

69.10

69.82

70.42

3.07

3.21

3.31

3.40

3.48

3.88

4.07

4.21

4.33

4.43

800.0

900. 0

1 000.

2000.0

3000.

70.94

71 .40

71.81

74.52

76. 1 0

3.54

3.60

3.65

3.98

4.18

4.52

4.59

4.66

5.12

5.38

4000.

5000.0

6000.0

7000.0

8000. 0

77.22

78. 1 0

78.81

79.41

79.93

4.32

4.43

4.52

4.59

4.66

5.57

5.72

5.84

5,94

6.02

9000.0

10000.

50000.

100000,0

500000.0

80.39

80.80

87.09

89.79

96.08

4.71

4.77

5.55

5.89

6.67

6.10

6.17

7.23

7.68

8.74

1 000000.0 98.79 7.01 9.20

72
MOLINE. ILLINOI S ( 1944-1977) • REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 34.00

THE SAMPLE MEAN = 54.78

THE SAMPLE STANDARD DEVIATION = 7.73

THE SAMPLE MINIMUM = 39.81

THE SAMPLE MAXIMUM = 72.08

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

05/03/44 50. 56. SW 52.

04/11/45 50. 70. SW 66.

08/09/46 50. 56. SW 5 2.

06/10/47 50. 77. SW 72.

1 2/05/48 50. 60. SW 56.

10/10/49 50. 56. SW 52.

05/05/50 54 . 65. SW 60.

05/19/51 54. 57. SW 53.

03/23/52 54. 61 . SW 56.

03/22/53 54. 66. s 6 1.

03/25/54 54. 66. SW 6 1.

05/06/55 54. 68. SW 63.

04/03/56 54. 69. SW 64.

03/15/57 54. 54. SW 50.

05/22/58 54. 43. w 40.

03/15/59 25. 45. NW 47.

02/10/60 25. 45. NE 47.

09/01/61 25. 44. SW 46.

1 1/23/62 25. 45. NW 47.

07/19/63 25. 59. NW 62.

05/08/64 25. 52. SW 55.

1 1/27/65 25. 46. W 48.

05/07/66 25. 63. NE 66.

05/18/67 25. 50. NW 52.

12/05/68 25. 44. NW 46.

07/03/69 25. 43. SW- 45.

05/09/70 25. 56. sw 59.

04/27/71 25. 47. E 49.

07/14/72 25. 49. W 51 . 06/18/73 25. 57. SE 60.

06/20/74 25. 57. N 60.

12/14/75 25. 43. SW 45.

06/13/76 25. 64. NW 67.

07/10/77 25. 47. SE 49.

73
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4. 0

5.0

6.0

5-3.53

56.96

59. 11

60.71

61.98

1.21

1.49

1.70

1.86

2.00

1 .22

1 .55

1 .82

2.05

2.24

7. 0

8.0

9.0

10.0

20.0

63.03

63.93

64.72

65.42

69.94

2. 12

2.22

2.31

2.39

2.92

2.40

2.53

2.66

2.77

3.50

30.0

34. 0

40. 0

50.0

60.0

72.54

73.34

74.38

75.79

76.-95

3.24

3.34

3.46

3.64

3.78

3.92

4.06

4.23

4.47

4.66

70.0

80. 0

90.0

100.0

200.0

77.93

78.77

79.51

80. 1 8

84.55

3.90

4.00

4.10

4. 18

4.72

4.82

4.96

5.09

5.20

5.94

300. 0

400. 0

500. 0

600.0

700. 0

87. 10

88.91

90.31

91.46

92.43

5.04

5.27

5.45

5.59

5.71

6.37

6.68

6.92

7.12

7.28

80 0.0

900.0

1000.0

2000.

3000.0

93.27

94. 01

94.67

99. 03

101 .57

5.82

5.91

6. 00

6.55

6.87

7.42

7.55

7.66

8.41

8.84

4000.

5000.0

6000.

7000.0

8000.

103.38

104.78

105.93

106.90

107.73

7.10

7.28

7.42

7.55

7.65

9.15

9.39

9.59

9.76

9.90

9000.

10000.0

50000.0

100000.0

500000.

108.47

109. 14

1 19.25

123. 60

133.72

7.75

7.83

9.12

9.68

1 0.97

10.03

10. 14

11 .88

12.63

14.37

1 000000.0 138. 07 11 .52 15. 12

74
PEORIA. ILLINOIS (1943-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 35.00

THE SAMPLE MEAN = 52.04

THE SAMPLE STANDARD DEVIATION = 6.96

THE SAMPLE MINIMUM = 40.50

THE SAMPLE MAXIMUM = 70.21

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION{FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT -ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

07/28/43 26. 60. NW 63.

04/11/44 26. 50. E 52.

I 1 /08/45 26. 50. SW 52.

06/12/46 26. 50. w 52.

04/05/47 26. 66. SW 69.

12/05/48 50. 58. SM 54.

01/27/49 50. 52. W 49.

05/05/50 50. 61. SW 57.

09/26/51 50. 50. w 47.

1 1/26/52 50. 50. SW 47.

07/05/53 50. 75. NW 70.

05/31/54 50. 55. SM 51.

03/22/55 50. 50. NW 47.

08/13/56 50. 65. W 61.

03/14/57 50. 52. SW 49.

10/09/58 50. 60. SW 56.

09/26/59 50. 60. w 56.

05/24/60 20. 47. NW 5 1.

03/27/61 20. 43. SW 47.

04/30/62 20. 40. W 44.

07/19/63 20. 41 . NW 45.

1 1/20/64 20. 56. w 6 1.

09/14/65 20. 51 • w 56.

03/31/66 20. 40. NW 44.

02/23/67 20. 46. NW 50.

12/04/68 20. 39. NW 43.

06/25/69 20. 43. W 47.

05/13/70 20. 44. NE 48.

12/15/71 20. 46. SW 50.

01/24/72 20. 37. w 41.

06/16/73 20. 54. NW 59.

07/14/74 20. 49. W 54.

07/23/75 20. 50. W 55.

03/04/76 20. 43. w 47.

03/30/77 20. 44. SW 48.

75
/

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76
SPRINGFI ELD. ILLINOIS (1948- 1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 30.00

THE SAMPLE MEAN = 54.15

THE SAMPLE STANDARD DEVIATION = 5.96

THE SAMPLE MINIMUM = 45.97

THE SAMPLE MAXIMUM = 70.63

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

1 2a Oo/«l*o 48 . 66 . SM 6 2.

0 1 /ZZ/49 48 . 65 . sw 6 1.

05/05/50 48 . 57. sw 54 . 08/ 15/51 48 . 58. w 5 5*

03/23/52 48. 59. w 56 « 12/14/53 48. 58. w 55.

08/18/54 48. 50. w 47.

05/26/55 48. 56. sw 53.

06/26/56 48. 54. sw 51 • 06/14/57 48. 75. sw 71.

05/31/58 48. 51 . N 48.

03/06/59 48. 57. w 54.

05/25/60 48. 58. w 55.

03/27/61 48. 65. sw 61.

07/13/62 48. 73. sw 69.

06/10/63 20. 49. NW 54.

06/21/64 20. 48. w 53.

03/17/65 20. 45. w 49.

03/23/66 20. 42. w 46.

01/06/67 20. 51. sw 56.

12/22/68 20. 42. sw 46.

06/28/69 20. 48. NW 53.

06/14/70 20. 50. NE 55.

12/15/71 20. 54. SW 59.

01/24/72 20. 45. w 49.

04/20/73 20. 45. SE 49.

05/30/74 20. 48. NE 53.

1 1/29/75 20. 49. SW 54.

03/12/76 20. 48. SW 53.

04/02/77 20. 44. W 48.

77
/

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a. z

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78
EVANSVILLE, INDIANA (1941-1977)

THE SAMPLE NUMBER OF OBSERVATIONS 37 • 00

THE SAMPLE MEAN 46 .65

THE SAMPLE STANDARD DEVIATION 6 .11

THE SAMPLE MI NIMUM 36 .12

THE SAMPLE MAXIMUM 61 .30

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

QT /Qr40 . 53. N W

C 1 3 1.

Oo/ 1 1 /A-Z 40 . 50 . c 4 o .

A40 . 4 9* SW 4 r . 03/^04/4 ** 40 . C04A

. W 3 2.

03/ 17X45 A40 . 5o . s

C A O 4 . ^ X 10/40 40A /\ . 52 . e til S W 3 0.

OoX *i4 X** 7 40A n • DO . w

A O 4 o . 0 J X 19X4 8

A f\ 40 . 54 . 5W 3 2.

00X24X49 A n 4 0. oo . o C A 3«f .

1 1 X20XO0 40A rt • A40 . OM o y . yox £1/ xt3

IN W A 1 06XoOXo2 64 . 47A

• N W

A 04x30x53 64 • 49. SE 44 • 02/20/54 64. 54. SE 49.

03/01/55 64. 47. SW 43.

02/25/56 64. 59. w 53.

06/12/57 64. 57. NW 52.

06/10/58 64. 58. NW 52.

03/05/59 64. 53. SE 48.

05/24/60 64. 42. NW 38.

05/07/61 64. 47. NW 43.

04/30/62 20. 43. SW 47.

08/28/63 20. 49. NW 54.

03/04/64 20. 43. s 47.

05/18/65 20. 42. NW 46.

07/06/66 20. 38. NW 42.

02/15/67 20. 39^ W 43.

1 1/28/68 20. 36. s 39.

05/10/69 20. 35. w 38.

04/19/70 20. 34. SW 37.

12/10/71 20. 56. SW 61 . 07/15/72 20. 33. SW 36.

01/26/74 20. 41. s 45.

04/07/74 20. 34. SW 37.

05/25/75 20. 49. SW 54.

01/13/76 20. 43. w 47.

06/30/77 20. 46. w 50.

79
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DI STRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3.0

4.0

5.0

6.0

45.73

48.33

50.00

51 .23

52.21

.92

1 . 13

1.28

1.41

1 .51

.92

1.17

1.38

1 .55

1.69

7.0

8. 0

9.0

10.0

20.0

53. 03

53.72

54.33

54. 87

58.37

1 .60

1 .68

1 .75

1.81

2.21

1.81

1 .92

2.01

2. 10

2.65

30.0

37.0

40.0

50.0

60.0

60.38

61.41

61 . 80

62.89

63. 79

2.45

2.58

2.62

2.75

2.86

2.97

3.14

3.20

3.38

3.53

70.0

80.0

90.0

100.0

200. 0

64.54

65. 1 9

65.77

66.28

69.66

2.95

3.03

3.10

3.16

3.58

3.65

3.76

3.86

3.94

4.50

300. 0

40 0. 0

500. 0

600.0

700. 0

71.63

73.03

74. 12

75.00

75.75

3.82

3.99

4. 13

4.24

4.33

4.83

5.06

5.24

5.39

5.51

800. 0

900.0

1 000.0

2000.0

3000.0

76.4 0

76.97

77.48

80. 85

62.82

4.41

4.48

4.54

4.96

5.20

5.62

5.72

5.80

6.37

6.70

4000.0

5000.

6000.

7000.0

8000.0

84.22

85.30

86. 19

86. 94

87.58

5.38

5.51

5.62

5.72

5.80

6.93

7.12

7.26

7.39

7.50

9000.0

10000.

5000 0.

100000.

500000.0

88. 16

88.67

96.48

99. 85

107.67

5. 87

5.93

6.91

7.33

8.31

7.59

7.68

9.00

9.56

10.88

1 000000.0 111.03 8.73 11 .45

80
FORT WAYNE, INDIANA (1942-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 36.00

THE SAMPLE MEAN = 53.02

THE SAMPLE STANDARD DEVIATION = 6.62

THE SAMPLE MINIMUM = 41.97

THE SAMPLE MAXIMUM = 68.96

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATIONCFT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

03/09/42 33. 50 . N W 50.

06/15/43 33 . 42 . W 42*

02/22/44 33. 43 . W 43.

07/25/45 33. 49. N W 49 •

1 1 /21 /46 33. 42 • W 42.

04/06/47 34 . 50. SW 50 . 03/19/48 34 . 65. S 65.

0 1 / 18/49 34. 59. sw 59 . 06/16/50 34 . 43 . NW 43.

06/27/5

34. 57 . s 57.

1 1 /25/52 34 . 49. SE 49*

04/10/53 62. 60. w 55.

07/20/54 62. 61 . NW 55.

03/22/55 62. 63. sw 57.

1 1/15/56 62. 54. sw 49.

04/05/57 62. 57. sw 52.

05/22/58 68. 51 • sw 46.

03/15/59 68. 57. sw 51 . 05/20/60 68. 57. s 51 • 03/06/61 68. 57. sw 51.

04/30/6 2 20. 63. w 69.

04/17/63 20. 47. NE 51.

03/05/64 20. 52. SW 57.

08/27/65 20. 51 • N 56.

07/12/66 20. 43. N 47.

02/15/67 20. 61 . E 67.

06/11/68 20. 54. SW 59.

05/31/69 20. 56. w 61.

05/15/70 20. 52. sw 57.

12/15/71 20. 49. SW 54.

01/25/72 20. 53. w 58.

06/26/73 20. 47. w 5 1.

06/20/74 20. 49. w 54.

01/10/75 20. 50. SM 55.

03/12/76 20. 40. w 44.

01/26/77 20. 50. 55.

81
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTIMATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6.0

51.99

54.88

56.73

58. 1 0

59. 19

1.01

1 .24

1 .41

1 .55

1 .67

1.01

1 .29

1 .52

1.71

1 .86

7.0

8.0

9. 0

10.0

20. 0

60. 10

60.87

61.55

62. 15

66.03

1 .76

1 .85

1 .92

1 .99

2.44

2.00

2. 1

2.21

2.31

2.91

30.0

36. 0

40.0

50. 0

60.0

68.26

69.26

69.84

71.05

72.05

2.70

2.82

2. 88

3.03

3. 15

3.27

3.43

3.52

3.72

3.88

70.0

80.0

90. 0

100.0

200.0

72.88

73.61

74.25

74.82

78.57

3.25

3.34

3.41

3.48

3.94

4.02

4.14

4.24

4.33

4.95

300. 0

400. 0

500. 0

600.0

700. 0

80.76

82.31

83.52

84.50

85.33

4.20

4.39

4.54

4.66

4.76

5.31

5.57

5.77

5.93

6.07

800.0

900.0

1 000.0

2000.

3000.0

86.05

86.69

87.26

90.99

93. 1 8

4. 85

4.93

5. 00

5.46

5.72

6.19

6. 29

6.39

7.01

7.37

4000.0

5000.0

6000.0

7000.0

8000.

94.73

95.94

96.92

97.75

98.47

5.92

6. 06

6.19

6.29

6.38

7.63

7.83

7.99

8.13

8.25

9000.0

10000.

50000.0

100000.

500000.

99. 1 1 99.67

108.35

112.09

120.77

6.46

6.53

7.60

8. 06

9. 14

8.35

8.45

9.89

10 .52

1 1 .97

1 000000.0 124.51 9.60 12.59

82
INDIANOPOLIS. INDIANA (1944-1977), SEE SECT. 2.1

THE SAMPLE NUMBER £F OBSERVATIONS = 34.00

THE SAMPLE MEAN = 55.45

THE SAMPLE STANDARD DEVIATION = 11.17

THE SAMPLE MINIMUM = 40.50

THE SAMPLE MAXIMUM = 93.04

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

02/22/44 54 . 52. SM 4 8.

05/14/45 54 . 68. N W 63 . 0o/lo/4o 54 . If . N 7 1.

03/ 24 / 4 7 54. 68. NW o 3 . 03/19/48 54 . 66 . SW 6 1.

0 1 / 19/49 54. 80 . SW 74 . 0 1 /25/50 54 . 90 • w 83 . 05/03/5

59. 68. w O 2.

09/18/52 59. 61. NW 56 . 07/05/53 59. 57. NW 52.

03/03/54 59. 56. NW 51 . 03/11/55 59. 56. NW 5 1.

04/07/56 59. 60. W 55.

07/08/57 59. 57. w 52.

06/10/58 59. 59. NW 54.

03/15/59 59. 52. SW 48.

04/08/60 20. 42. NW 46.

02/25/6 1 20. 40. N 44.

10/07/62 20. 85. SW 93.

04/22/63 20. 50. N 55.

03/05/64 20. 51 . SW 56.

1 1/26/65 20. 50. SW 55.

07/1 1/66 20. 44. NW 48.

02/15/67 20. 49. W 54.

12/05/68 20. 42. NW 46.

06/01/69 20. 40. SW 44.

12/03/70 20. 45. w 49.

06/11/71 20. 55. w 60.

04/07/72 20. 48. N 53.

03/11/73 20. 44. SW 48.

01/26/74 20. 44. SW 48.

01/10/75 20. 49. SW 54.

03/30/76 20. 37. SW 41 . 01/26/77 20. 44. w 48.

83
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84
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II II II •0 •* n o « r) •* N o m in 0) O (M « CO o 10

in eg « in (VI o N o in N r) CD * o « * » a Cll <o in o o in (M o N in N o in t • • • • t • • • • P) eg CM in o

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85
BURLINGTON. IOWA (1942-1964)

THE SAMPLE NUMBER OF OBSERVATIONS 23 .00

THE SAMPLE MEAN 56 • 04

THE SAMPLE STANDARD DEVIATION 9 .23

THE SAMPLE MINIMUM 42 .16

THE SAMPLE MAXIMUM 71 • 94

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT ) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

05/01/42 37^ 43. SW 42.

12/12/43 37. 56. NW 55.

06/25/44 37. 70. NW 69.

05/21/45 37. 63. SW 62.

08/09/46 37. 56. W 55.

08/30/47 37. 73. N 72.

12/05/48 37. 72. SW 71.

10/10/49 37. 47. SW 46.

05/05/50 33. 66. SW 68.

1 1/03/51 33. 47. w 47.

01/19/52 33. 49. w 49.

10/03/53 33. 63. w 63.

04/26/54 33. 56. w 56.

04/23/55 33. 54. SW 54.

04/03/56 33. 56. SW 56.

03/15/57 33. 49. w 49.

1 1/05/58 33. 43. NW 43.

03/15/59 33. 54. NW 54.

06/01/60 33. 56. NW 56.

03/27/61 33. 48. SW 48.

09/13/62 33. 56. W 56.

03/20/63 33. 48. w 48.

06/20/64 33. 72. NW 72.

86
RETURN PERIOD

(IN YEARS!

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DI STRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATEO

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3.0

4.0

5.0

6.0

54.67

58.71

61.30

63.22

64.75

1 . 76

2.16

2.46

2.71

2.90

1.77

2. 25

2.65

2.98

3.25

7.0

8. 0

9.0

10.0

20.0

66.01

67. 10

68.04

68. 89

74.32

3.07

3.22

3.35

3.47

4.25

3.48

3.68

3.86

4.02

5.08

23.0

30.0

40.0

50.0

60.0

75.40

77.44

79.65

81.35

82.74

4.40

4. 70

5.03

5.28

5.49

5.29

5 .70

6.14

6.48

6.77

70.0

80.0

90.0

100.0

200.0

83.91

84.93

85. 82

86.62

91 .87

5.66

5.81

5,95

6.07

6. 86

7. 00

7.21

7.39

7.55

8.63

300.0

400.0

500. 0

600.0

700.0

94.94

97. 1 1 98.80

100. 18

1 0 1 . 34

7.32

7.65

7.91

8.12

8.30

9.26

9.70

10. 05

10.33

10 .57

80 0. 0

900.0

1 000.

2000.

3000.

102.35

103.24

104.04

109.27

1 12.33

8.45

8.59

8.71

9.51

9.98

10.78

10.97

11.13

12.21

12.84

4000.0

5000.

6000.0

7000.0

8000.0

114.50

116.19

1 17.56

118.73

1 19.74

10.31

10.57

10.78

1 0.96

11.12

13.29

13.64

13.93

14. 17

14. 38

9000.0

10000.0

50000.

100000.

500000.

120.62

121 .42

133.57

138.80

150.96

I 1 .25

I I .37

13.24

14. 05

15.93

14.56

14.73

17.25

18 .33

20.86

1 000000.0 156. 19 16.73 21 .95

87
DES MOINES, IOWA {1951-1977>, REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 27.00

THE SAMPLE MEAN = 57.66

THE SAMPLE STANDARD DEVIATION = 3.54

THE SAMPLE MINIMUM = 43.79

THE SAMPLE MAXIMUM = 79.91

DATE ANEMOMETER

ELEVATION<FT)

FASTEST MILE WIND SPEED

AND DIRECTION CRECOROEO

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

1 1 /03/5

63. 63. NW 57.

1 1/26/5 2 63 . 72. W 65 . 06 /07/53 63 . 76 . N W 69.

06 / 1 2/54 63 . 65. SE 59 . oo . 7nr V -. w 06/19/56 69. 63. w 56.

11/08/57 69. 68. NW 61 . 07/01/58 69. 61. SE 55.

05/18/59 69. 54. NE 48.

08/24/60 69. 60. S 54.

07/12/620. 50. sw 55.

05/18/62 20. 56. sw 6 1.

06/28/63 20. 56. NE 61.

05/08/64 20. 65. sw 71.

06/27/65 20. 60. sw 66.

07/05/66 20. 54. NW 59.

04/17/67 20. 50. NW 55.

07/08/68 20. 73. W 80.

06/26/69 20. 58. sw 63.

07/02/70 20. 56. NW 61 . 07/08/71 20. 45. NW 49.

05/01/72 20. 42. SW 46.

06/16/73 20. 49. SW 54.

06/14/74 20. 40. E 44.

01/11/75 20. 42. NW 46.

06/14/76 20. 46. S 50.

03/29/77 20. 43. SW 47.

88
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89
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6.0

56.35

60. 14

62.57

64.37

65. 80

1.50

1 .84

2. 10

2.31

2.48

1.51

1 .92

2.26

2.54

2.77

7. 0

8. 0

9.0

1 0. 0

20. 0

66.98

68.00

68.89

69.67

74.77

2.62

2.75

2.86

2.96

3.62

2.97

3.14

3.29

3.43

4.33

27.0

30.0

40.0

50.0

60.0

76.94

77.70

79.76

81.36

82.66

3.91

4.01

4.29

4.51

4.68

4.73

4.87

5.24

5.54

5.78

70.0

80.0

90.0

100.0

200.0

83.76

84.71

85.55

86.30

91.22

4.83

4. 96

5. 08

5. 18

5.86

5.98

6« 15

6.31

6.45

7.37

300.0

400.0

500. 0

600.0

700. 0

94.09

96. 13

97.71

99. 00

100.09

6.25

6.53

6.75

6.93

7. 08

7.90

8.28

8.58

8.82

9.03

800.0

900.0

1000.0

2000.0

300 0.0

101 .04

101.87

102.62

107.52

1 1 0 . 39

7.22

7.33

7.44

8.12

8.52

9.20

9.36

9.50

10.42

10.96

4000.0

5000.0

600 0.0

7000.0

8000.0

112.43

114.01

115.30

1 16.39

1 17.33

8.80

9.02

9.20

9. 36

9.49

I 1 .35

I I . 65

1 1 .89

12.10

12.27

9000.0

10000.0

50000.0

100000.0

500000.

118.17

1 18.91

130.30

135. 20

146.60

9.61

9.71

1 1.31

1 1 .99

13.60

12.43

12.57

14.72

15.65

17.81

1 000000.0 151.50 14.29 18.74

90
SIOUX CITY. IOWA (1942-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 36,00

THE SAMPLE MEAN = 57.64

THE SAMPLE STANDARD DEVIATION = 9.23

THE SAMPLE MINIMUM = 42.29

THE SAMPLE MAXIMUM = 88.11

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FTI AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

04/27/42 27. 54. S 56.

03/16/43 40. 53. NW 51 . 09/15/44 40. 50. W 48.

06/27/45 40. 91. w 88.

04/03/46 40. 68. w 66.

06/09/47 40. 72. w 70.

12/05/48 40. 50. NW 48.

10/10/49 40. 70. w 68.

03/07/50 40. 61. N 59.

08/14/51 40. 56. NW 54.

07/06/52 40. 58. NW 56.

05/10/53 40. 49. SW 47.

1 1/24/54 103. 59. NW 51.

04/03/55 103. 66. S 57.

05/10/56 103. 80. W 69.

08/17/57 103. 66. S 57.

06/08/58 24. 65. N 69.

05/02/59 24. 54. s 57.

1 1/28/60 24. 49. NW 52.

04/15/61 24. 47. NW 50.

05/13/62 24. 70. SW 74.

12/08/63 24. 51 . NW 54.

05/05/64 24. 57. SW 60.

03/17/65 24. 60. NW 63.

03/31/66 24. 49. NW 52.

07/09/67 24. 66. NW 70.

12/22/68 24. 53. NW 56.

07/04/69 24. 52. SW 55.

06/15/70 24. 54. NW 57.

01/25/71 24. 44. NW 47.

05/01/72 24. 47. SW 50.

06/18/73 24. 52. N 55.

06/22/74 24. 40. N 42.

1 1/12/75 24. 47. NW 50.

04/16/76 24. 56. S 59.

1 1/09/77 24. 56. NW 59.

91
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92
CQNCORDIA.KANSAS (1962-1977)

THE SAMPLE NUMBER QF OBSERVATIONS 16 .00

THE SAMPLE MEAN 58 .62

THE SAMPLE STANDARD DEVIATION 9 .41

THE SAMPLE MINIMUM 45 .54

THE SAMPLE MAXIMUM 73 .73

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

12/08/62 21 . 42. NW 46.

03/16/63 21 • 63. SW 68.

06/21/64 21 • 52. w 56.

03/17/65 21. 54. NW 59.

03/22/66 21. 49. NW 53.

06/09/67 21 . 67. NE 73.

07/17/68 21 . 61 . NW 66.

09/04/69 21 . 53. NW 57.

06/14/70 21 . 64. W 69.

03/18/71 21. 68. NW 74.

04/17/72 21. 42. S 46.

04/19/73 21. 46. S 50.

05/19/74 21 . 52. SW 56.

06/02/75 21 . 54. NW 59.

02/20/76 21 • 56. NE 61 . 04/10/77 21 . 42. S 46.

93
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DI STRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN, DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3.0

4.0

5.0

6.0

57.26

61.47

64. 16

66.16

67.74

2.15

2.64

3.01

3.31

3.55

2. 16

2.74

3.24

3.64

3.97

7.0

8.0

9.0

10.0

16.0

69.06

70.19

71.17

72. 05

75. 89

3.76

3.94

4. 10

4.24

4.88

4.25

4.50

4.72

4.91

5.79

20.0

30.0

40.0

50.0

60.0

77.70

80.95

83.24

85.01

86.46

5. 19

5.75

6.14

6.45

6.70

6.20

6.96

7.50

7.92

8.27

70.0

80.0

90.0

100.0

200.0

87.67

88.73

89.66

90.49

95.95

6.92

7.10

7.27

7.41

8.38

8.56

8.81

9.03

9.23

10.54

300. 0

400.0

500.0

600.0

700.0

99. 14

101 .40

103.15

104.59

105.80

8.95

9.35

9.67

9.92

10.14

1 1.31

11.86

12.28

12.63

12.92

80 0.0

900.0

1 00 0.

2000.0

3000.0

106.85

107.77

108.60

114.04

1 17.22

10.33

10.49

10.64

11.62

12. 19

13. 18

13.40

13.60

14.92

15.70

4000.

5000.0

6000.0

7000.0

8000.

119.48

121.23

122.67

123.88

124.92

12.60

12.92

13.18

13.39

13.58

16.24

16.67

17.02

17.31

17.57

9000.0

10000.0

50000.0

100000.0

500000.

125. 85

126.68

139.31

144.75

157.39

13.75

13.90

16. 18

17.17

19.46

17.79

18.00

21.08

22.40

25.49

1 000000.0 162.83 20.45 26.82

9^
OQOGE CITY, KANSAS (1943-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 35.00

THE SAMPLE MEAN = 60.64

THE SAMPLE STANDARD DEVIATION = 6.03

THE SAMPLE MINIMUM = 49.26

THE SAMPLE MAXIMUM = 71.51

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

1 1 /07/4 3 58 . w # . NW

58 . 72 a N W 66.

O T/23y4 ^ 58 . 63 . S W 5 8.

58. 59. W 54 . 58 . 73 . s w r .

\J *r r \J ^ r *rO ^ o . . c o o . oo . c ^ o . 0 '^07 'SO 58 . f «^ . NW w # .

Ck 7 /cstL /^y 9 o . f o . r ^ . ? o . / *r . MU1^ n A A _

\j ^/ X D o oo . r ^ . M UJ IM H O O . 02/19/54 58. 68. N 62.

05/02/55 58. 70. SW 64.

06/23/56 58. 63. s 58.

06/21/57 58. 72. NW 66.

04/05/58 58. 61. NW 56.

05/20/59 58. 71 . W 65.

04/16/60 58. 56. N 51 . 12/22/61 20. 54. NW 59.

04/03/62 20. 55. s 60.

04/02/63 20. 53. s 58.

07/04/64 20. 65. s 71 . 08/09/65 20. 57. NW 62.

03/22/66 20. 56. NW 61.

06/28/67 20. 50. s 55.

03/17/68 20. 50. s 55.

01/08/69 20. 45. N 49.

12/30/70 20. 48. NW 53.

03/ 18/71 20. 63. NW 69.

03/01/72 20. 51 . N 56.

05/27/73 20. 52. NW 57.

07/24/74 20. 55. N 60.

1 1 /20/75 20. 56. NW 61.

02/21/76 20. 63. N 69.

02/23/77 20. 49. NW 54.

95
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DI STRIBUTION

ESTIMATED

STAN, DEV.

SAMPL, ERROR

CRAMER-RAG

ESTIMATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

e.o

59.72

62.31

63.97

65.20

£>6. 18

.93

1.14

1 .31

1 .43

1 .54

.94

1.19

1 .40

1 .58

1 .72

7.0

8.0

9.0

10.0

20.0

66.99

67.69

68.29

68.83

72.32

1 .63

1 .71

1 .78

1 .84

2.25

1 .84

1.95

2.05

2. 13

2.69

30.0

35.0

40.0

50.0

60.0

74.32

75.08

75.73

76.83

77.72

2.49

2.58

2.66

2. 80

2.91

3.02

3.15

3.26

3.44

3.59

70.0

80.0

90.0

100.0

200.0

78.47

79. 12

79.69

80.20

83.57

3. 00

3.08

3. 15

3.22

3.64

3.71

3.82

3.92

4.00

4.57

300. 0

400.0

500.0

600.0

700.0

85.54

86.93

88.01

88.89

89.64

3.88

4.06

4.19

4.30

4.40

4.91

5.14

5.33

5.48

5.60

800.0

900. 0

1000.0

2000.0

3000.

90.29

90.86

91 .37

94.72

96.68

4.48

4.55

4.62

5.04

5.29

5.71

5.81

5.90

6.47

6.81

4000.0

5000.0

6000.0

7000.0

8000.0

98.08

99. 16

100.04

100.79

101 .43

5.47

5.60

5.71

5.81

5.89

7.05

7.23

7.38

7.51

7.62

9000.0

10000.0

50000.0

1 00000.0

500000.0

102.00

102.51

110.30

1 13.65

121.45

5.96

6.03

7.02

7.45

8.44

7.72

7.81

9. 14

9.72

11.06

1 000000.

124.80 8.87 11 .63

96
TOPEKA.KANSAS (1950-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 28.00

THE SAMPLE MEAN = 54.5 0

THE SAMPLE STANDARD DEVIATION = 8.19

THE SAMPLE MINIMUM = 41.91

THE SAMPLE MAXIMUM = 78.81

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION<FT) AND DIRECTJON (RECORDED WIND SPEED AT lOM .ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

03/26/50 58. 66. SW 61 . 12/03/51 58. 61 . S 56.

03/12/52 58. 61 . s 56.

03/21/53 58. 61. SW 56.

10/11/54 72. 63. NE 56.

06/04/55 72. 57. NE 5 1.

07/11/56 72. 63. NE 56.

04/19/57 72. 63. SE 56.

07/11/58 72. 81 . N 72.

03/20/59 72. 63. N 56.

1 1/27/60 72. 47. S 42.

05/05/61 72. 62. SE 55.

05/28/62 72. 59. SW 53.

05/15/63 72. 72. N 64.

04/20/64 72. 57. SW 51.

04/11/65 20. 45. SW 49.

06/08/66 20. 72. SW 79.

05/27/67 20. 49. s 54.

07/23/68 20. 60. NW 66.

11/13/69 20. 43. N 47.

06/1 1/70 20. 42. s 46.

03/18/71 20. 42. NW 46.

04/30/72 20. 51 . SW 56.

07/02/73 20. 43. NE 47.

08/17/74 20. 45. NE 49.

04/18/75 20. 42. N 46.

04/15/76 20. 49. S 54.

04/04/77 20. 43. NW 47.

97
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o

X J Ul o

< a o

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z 1-4 H o • UJ K N

a a UJ H

h- a D

X J CD

Ul z < o > (X Q H

Ul o 01 (« II »- Ul z -4 u UJ Q < < a. z a ID >- z

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CMffiC3>iO-< »0<»-«CJ>00 NOI0-<>0 C0C^O>NN N CM 0> CM (T' CO in CM in to O to N >0 O <t N OO ff>OO CO in N in o OO 01 in Nro o CM ^

N in -« to •* o in to to NN o> in « 10 cM<ooooi rgio<tin-"

ininin'O'O <o>Ovo«n

in OO o CM N N N 00 OO * in « N in

<D OO CO CO (^

.4 ^ N O CM o o o

<» 'O 00 >o M •H CM to — in o< CM in

in in

to vO in in in o

00 o N to * N O CO <D N

in * 01 — N (j> ^ -« -< CM CM CM

o

o

oe <A

UJ K

a <

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K «

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a

o o o o o

CM to <t in >o o o o o o

N CD 01 O O

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o o o o o

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CM to * o o

in o

o o o o o

o o o o o

N 00 0> O O

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o o o o o

o o o o o

o o o o o

ro It in vo N

o o o o o o o o o o o o o o o o

• o o o o o o o o o o o o o o o o

o o o o o o o o o Q o o o o o o

00 CJ> o o o o o o o o o o o o o

CM to * in N <0 CJi o o o o o

in o o o

in o

99
WICHITA, KANSAS ( 1941-1977)

THE SAMPLE NUMBER OF OBSERVATIONS 37,00

THE SAMPLE MEAN 58,12

THE SAMPLE STANDARD DEVIATION 8,51

THE SAMPLE MI NIMUM 44,74

THE SAMPLE MAXIMUM 89.47

DATE ANEMOMETER

ELEVATION(FT]

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

07/10/41 64. 63. NW 57.

1 1/15/42 64. 72, S 65,

05/05/43 64. 58. s 52.

07/27/44 70. 73. NW 65.

08/13/45 70. 59. NW 53.

03/22/46 70. 56. NW 50.

06/04/47 70. 66. SE 59.

07/14/48 70. 100. N 89.

04/14/49 70, 63. NW 61.

05/20/50 70. 63. SE 56.

03/23/51 70. 50. NW 45.

09/01/52 70. 59. NE 53.

06/21/53 70. 73. NE 65.

01/20/54 21 . 47. N 51.

03/10/55 21 • 49. N 53.

07/05/56 21 . 66. NW 72.

06/1 i/57 21 . 64. NW 69.

12/29/58 21. 52. NE 56.

03/14/59 21 . 54. NW 59.

06/20/60 21. 56. N 61 . 03/27/61 21 . 59. W 64.

07/04/62 21 . 59. SE 64.

12/08/63 21 . 54. NW 59.

04/27/64 21 . 63. W 68.

05/06/65 21 . 56. sw 61 . 03/05/66 21. 54. NW 59.

06/29/67 21 • 51 . NW 55.

03/17/68 25. 47. sw 49.

06/25/69 25. 50. SW 52.

02/18/70 25. 45. N 47.

03/18/71 25. 57. NW 60.

07/01/72 25. 61 . NW 64.

07/24/73 25. 47. N 49.

08/ 17/74 25 « 46. N " 48.

03/23/75 25. 49. NW 5 1.

02/21/76 25. 48. N 50.

03/10/77 25. 54. SE 57.

100
m

<t • <» n II CO

CO®

liJ * N

*n1

111 Q. < O s J

rg (/) n UJx O

UJ • < I • *

(- - a

CO liJ w u

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38298 ENTI A

IN

^uc

X - t Z Q - o -< 1 a H X «t < UJ -1 z S ~. UJ

II II II vO n in n o cc N in C\J in 01 n o

CM « » N (71 CU o u

u

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m 0> in CM CO «tN

n o > f- 0> CM in I-- o P) in e K o * o> in o in lO lO eg J • t • • • t • • « lij a * s Oil <o m Oi D o CO s « lO in in <t

EXTREME

VAL

PROBABILITY

101
Q > U UJ <

Z t H Z H <

Irt ttlJ (0

o» ro ro ^o *o

cvi vo o> n

O <t 03 O (D o (vj rj « (VI ro >o cvj o> N o n in >o4t (0 O 00

(D 0> 00 fO N tvi r) vo

vO o> ro ^ » ^ * s ^ID N in 10 o>

tn in in in « o N N r- N S N O OO Ct

q: • o Q

Q > a <

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hi Z

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Q\ ^ ^ ^t It) N CO CO 00 CO S 00 O <D

00 (o c^ o> m N o (\j * o O •« -•

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eg n •* in o s CO 0> o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o

•o

eg P) n * in CO 0> o o o o o o o o o o o o o o o o o o o o o o o

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eg 10 in 00 01 o o o o o

in o o o

m o

102
LOUI SVILLE. KENTUCKY (1946-1977)

THE SAMPLE NUMBER OF OBSERVATIONS 32.00

THE SAMPLE MEAN 49.34

THE SAMPLE STANDARD DEVIATION 6.67

THE SAMPLE MINIMUM 38.69

THE SAMPLE MAXIMUM 65.68

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

03/08/46 56. 43. SW 40.

05/17/47 56. 42. sw 39.

03/19/48 58. 54. SW 50.

1 2/12/49 58. 58. SE 53.

03/28/50 58. 54. SW 50.

05/22/51 71 . 57. SW 5 1.

1 1/25/52 71 . 60. SE 54.

12/04/53 71 • 61. SW 54.

09/19/54 71 • 57. NW 5 1.

11/16/55 71. 56. S 50.

02/25/56 71. 59. w 53.

06/11/57 71 . 58. w 52.

04/05/58 71 • 56. SE 50.

05/13/59 71. 44. w 39.

02/10/60 71 . 47. s 42.

04/25/61 20. 43. w 47.

04/30/62 20. 42. N 46.

06/10/63 20. 43. N 47.

1 1/28/64 20. 47. s 51.

11/26/65 20. 38. W 42.

07/06/66 20. 60. NW 66.

02/15/67 20. 57. NW 62.

1 1/28/68 20. 50. SM 55.

06/22/69 20. 40. NW 44.

04/02/70 20. 38. SW 42.

07/13/71 20. 55. W 60.

01/24/72 20. 45. SW 49.

12/26/73 20. 45. SW 49.

04/03/74 20. 54. SW 59.

01/25/75 20. 42. SW 46.

01/13/76 20. 41 . W 45.

02/23/77 20. 39. s 43.

103
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN, DEV.

SAMPL. ERROR

CRAMER-RAO

ESTIMATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5. 0

6.0

48.31

51.25

53. 13

54.52

55.63

1 .08

1 .32

1 .51

1 .66

1 .78

1 .08

1.37

1.62

1 .82

1 .99

7.0

8.0

9.0

10.0

20.0

56.55

57.33

58. 02

58.63

62.58

1.88

1 .97

2.05

2. 12

2.60

2. 13

2.25

2.36

2.46

3.11

30. 0

32.0

40.0

50.0

60.0

64.84

65.20

66.44

67.68

68.69

2. 88

2.92

3.08

3.23

3.36

3.49

3.55

3.76

3.97

4.14

70.0

80.0

90.0

100.0

20 0.0

69.54

70.28

70.93

71.51

75.32

3.47

3.56

3.64

3.72

4.20

4.29

4.41

4.53

4.63

5.28

300.0

400.0

500. 0

600.0

700.0

77.54

79. 12

80.35

81 .35

82. 19

4.48

4.69

4.84

4.97

5. 08

5.67

5.94

6. 15

6.33

6.48

800. 0

900. 0

1 000.0

2000.0

3000.

82.92

83.57

84. 15

87.95

90. 17

5.18

5.26

5.33

5.82

6.1 1

6.60

6.71

6.82

7.48

7.87

4000.0

5000.0

6000.

7000.0

8000.0

91.75

92.97

93.97

94. 81

95.54

6.31

6.47

6.60

6.71

6.81

8.14

8.35

8.53

8.68

8.80

9000.

10000.

50000.0

1 00000.0

500000.0

96. 19

96.77

105.59

109.38

118.21

6.89

6.97

8.11

8.60

9.75

8.92

9.02

10.56

1 1 .23

12.78

1 000000.

122.01 10.25 13.44

104
SHREVEPORT.LOUISI ANA (1942-1952)

THE SAMPLE NUMBER OF OBSERVATIONS = 11.00

THE SAMPLE MEAN = 44.59

THE SAMPLE STANDARD DEVIATION = 5.40

THE SAMPLE MINIMUM = 38.01

THE SAMPLE MAXIMUM = 53.39

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

01/30/42 64. 44. W 40.

1 1 /02/43 64. 42. W 38.

04/22/44 64. 56. SW 51 . 06/02/45 64. 47. NE 43.

05/18/46 64. 47. NW 43.

09/07/47 64. 52. E 47.

06/06/48 64. 49. N 44.

03/21/49 64. 57. S 52.

03/26/50 64. 42. S 38.

09/04/51 64. 59. E 53.

05/23/52 64. 47. NM 43.

105
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6. 0

43.84

46.34

47.94

49. 13

50. 07

1.49

1 .83

2.08

2.29

2.46

1 .50

1 .90

2.24

2.52

2.75

7.0

8.0

9.0

10.0

11.0

50.85

51.52

52. 1 1 52.63

53. 1 0

2.60

2.73

2.84

2.94

3.03

2.94

3.11

3.27

3.40

3.52

20. 0

30.0

40.0

50.0

60.0

55.99

57.92

59.28

60.34

61. 19

3.59

3.98

4.25

4.47

4.64

4.30

4.82

5.20

5.49

5«72

70.0

80.0

90.0

1 00. 0

200.0

61.92

62.55

63. 10

63.59

66. 84

4.79

4.92

5.03

5.13

5.80

5.93

6.10

6.25

6.39

7.30

300.0

400.0

500. 0

600. 0

700.0

68. 74

70.08

71.12

71.97

72.69

6.20

6.48

6.69

6.87

7.02

7.83

8.21

8.50

8.74

8.95

800.0

900.0

1000.0

2000,0

3000.

73.32

73.87

74.36

77. 60

79.49

7.15

7.27

7.37

8. 05

8.44

9.12

9.28

9.42

10 .33

10.87

4000.

5000.0

6000.0

7000.

8000.0

80.83

81 .87

82.72

83.44

84. 07

8.73

8.94

9. 12

9.27

9.41

11 .25

11 .54

1 1 .78

1 1 .99

12.17

9000.0

10000.0

50000.0

1 00000.

500000.

84.62

85. 1 I 92.62

95. 85

103. 37

9.52

9.62

1 1 .21

11.89

13.48

12.32

12.46

14.59

15.51

17.65

1 000000.

106.61 14.16 18.57

106
PORTLAND. MAINE (1941-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = THE SAMPLE MEAN = THE SAMPLE STANDARD DEVIATION = THE SAMPLE MINIMUM = THE SAMPLE MAXIMUM =

DATE ANEMOMETER FASTEST MILE WIND SPEED

ELEVATION(FT) AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

07/25/41 61. 44. W 12/02/42 61 . 56. SE

01/20/43 61. 48. W

02/15/44 43. 58. w

1 1/30/45 43. 76. NW

04/18/46 43. 57. NW

03/03/47 43. 76. NE

12/31/48 55. 44. E

04/19/49 55. 53. E

1 1/26/50 55. 66. E

02/07/51 55. 54. S

02/18/52 55. 58. N

1 1/25/53 55. 50. SE

08/31/54 55. 69. E

03/17/55 55. 52. SE

01/08/56 55. 44. NE

12/26/57 55. 62. SE

04/02/58 55. 45. N

12/07/59 55. 46. S

09/12/60 55. 62. SE

03/09/61 55. 42. E

12/06/62 55. 45. E

04/20/63 55. 49. W

02/03/64 55. 43. NW

02/25/65 20. 42. SE

01/30/66 20. 40. NE

02/16/67 20. 41. W 02/17/68 20. 40. W

06/20/69 20. 45. SW

03/27/70 20. 38. NW

01/30/71 20. 38. W

02/04/72 20. 42. SE

12/09/73 20. 38. SE

01/31/74 20. 43. NW

04/20/75 20. 41 . M

12/1 1/76 20. 51. NW

02/25/77 20. 38. E

37.00

48.50

8.67

38.79

72.77

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

40.

5 1.

44.

56.

73.

55.

73.

41 . 49.

61.

50.

54.

46.

64.

48.

41.

57.

42.

42.

57.

39.

42.

45.

40.

46.

44.

45.

44.

49.

42.

42.

46.

42.

47.

45.

56.

42.

107
Q >

LU UJ <Z • « Z

t- < U (/)

— >0 >0 O

n >o o cvj <t CO ro vo (0

U) S CO O N

rj vo If) o -H

CM in oo o

O CO o 0* — f) * vo n

vo c» * I/) ro

CO <t vO to o eg <» *

(J> >H N O 10

in -I N 01 in

00 * vO

ffi x 00 (0 in N o> N in *

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q: too

Q > o: <

UJ UJ (£ q: O UJ I a.UJ <w Z h <

UJ U)

— o t\j o in

ro 'O CO o i-« (D 0> 00 N *

pj ro * in CO^ON'^vO O^p^^OtoO ro r>- >o CM in

<t vO OO O

o o in * o>

c\j ro * o n

* n (ji CM n

0 OO 0* CM MM.4CMCM cvjpjcMCMn n n n n in

n ro -< o o

n * to * CO ininin-o>o 'O'Ovonn nnnoooo oocoo>0'<

UJT

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UJ an

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^inininin ininin'O'O

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UJ z < o > a >o o CM <t in Q •* in in in in

UJ Q UJ in II 1- UJ T o in UJ Q < < a Q tUi X <

a UJ

Q.

in 00 o o in

•H CM CM CM * * <t to in o> to 4- cvj in * N \0 01 O to»< lO 0> CM >0

lO ro CM o CM

Oi 01 ^ 00 ^

CD CM O WON (0 r>- ro N N O 10 ifl X

CM N lO in

(«- o o « lO N w -

N 00 (J> O lO

in in in lO lO O CM to m N

N N N N N

o> o p^ to S to 03 00 0<

ifl o * lO (Ji o o o o

to <t lO 10

CM to

(71 to N o n

10 <t •* in in

lO to OO ot in ro in in ci N o

w M ^ CM CM ro

Q

o

a <n

UJ a

a < o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o

z

UJ> CM ro <t in >o 00 (^ o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o

•o

a (\J ro ro in lO OO 01 o o o o o o o o o o o o o o o o o o o o o o o D z CM ro <t in o r>- 00 01 o o o o o o o o o o o o o o

CM ro <t in lO t>. to 01 o o o o o

UJ in o o o

a. —

10 o

108
BALTI MORE. MARYLAND (1949-1977)

THE SAMPLE NUMBER OF OBSERVATIONS 29 .00

THE SAMPLE MEAN 55 .87

THE SAMPLE STANDARD DEVIATION 6 • 87

THE SAMPLE MINIMUM 41 .60

THE SAMPLE MAXIMUM 71 • 15

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

03/12/49 73« 66. W 59 .

1 1 /25/50 133. 80 • N 67.

03/14/5133. 72* E 6 0.

03/1 1/52 133. 80 • SE 67.

X WW . ww • W • 10/15/54 133. 73 • SE 6 1.

05/29/55 133, 65^ sw 55.

02/25/56 133. 68^ w 57.

10/06/57 133^ 65^ NE 55.

01/25/58 133. 63^ NE 53.

12/07/59 133. 56. W 47,

02/19/60 20. 49. NW 54.

05/09/61 20. 65. sw 71 . 07/21/62 20. 57^ NW 62.

04/23/63 20. 56. NW 61 . 03/10/64 20. 57^ NW 62.

02/25/65 20. 50. sw 55.

01/30/66 20. 47. w 5 1 • 02/16/67 20. 49. w 54.

02/17/68 20. 47. NW 51 . 07/12/69 20. 49. NW 54^

04/02/70 20. 56. NW 61 • 01/26/71 20. 54. NW 59.

01/25/72 20. 38. SW 42.

03/17/73 20. 46. W 50.

12/01/74 20. 43. E 47.

04/03/75 20 • 50. W 55^

03/13/76 20^ 50. NW 55.

03/31/77 20. 46. W 50.

109
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN, DEV.

SAMPL, ERROR

CRAMER-RAO

ESTIMATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3.0

4.0

5.0

6.0

54.82

57. 83

59.76

61.19

62.32

1 . 17

1 .43

1 .63

1 .79

1 .93

1.17

1.49

1.76

1 .97

2.15

7.0

8.0

9.0

10.0

20.0

63.26

64.07

64.77

65.40

69.44

2.04

2. 14

2.22

2.30

2.82

2.31

2.44

2.56

2.67

3.37

29.0

30.0

40.0

50. 0

60.0

71.57

71.76

73.40

74.67

75.70

3. 09

3. 12

3.33

3.50

3.64

3.75

3.78

4.07

4.30

4.49

70.0

80. 0

90. 0

100.0

200.0

76.57

77.33

77.99

78.59

82.49

3.75

3.86

3.94

4. 02

4.55

4.64

4.78

4.90

5.01

5.72

300. 0

400. 0

500.0

600.0

700. 0

84.77

86.39

87.65

88.67

89.54

4. 86

5.08

5.25

5.39

5.50

6.14

6.43

6.67

6.85

7.01

800. 0

900.0

1 000.

2000.

3000.

90.29

90.95

91 .54

95.43

97.71

5.61

5.70

5.78

6.31

6.62

7.15

7.27

7.38

8.10

8.52

4000.

5000.0

6000.

7000.0

8000.0

99.32

100.58

101.60

102.47

103.22

6.84

7.01

7.15

7.27

7.37

8.82

9.05

9.24

9.40

9.53

9000.0

10000.0

50000.0

100000.

500000.0

103.88

104.47

113.50

117.40

126.44

7.46

7.54

8. 78

9.32

10.56

9.66

9.77

11.44

12. 16

13.83

1 000000.

130.33 11.10 14.56

110
BOSTON, MASS. (1936-1977) CAUTION SEE APPENDIX 1 AND SECT. 2.1

THE SAMPLE NUMBER OF OBSERVATIONS = 42.00

THE SAMPLE MEAN = 56.27

THE SAMPLE STANDARD DEVIATIJDN = 9.70

THE SAMPLE MINIMUM = 40.89

THE SAMPLE MAXIMUM = 85.18

DATE ANEMOMETER

ELEVATIONCFT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

10/17/36 50. 53. SE 50.

10/20/37 62. 60. S 55.

09/21/38 62. 87. s 79.

1 1/05/39 62. 62. NE 56.

02/14/40 62. 58. NE 53.

02/07/41 62. 45. E 41 . 12/02/42 62. 56. SE 51.

12/11/43 62. 56. NW 51 . 09/14/44 62. 72. NE 65.

1 1/29/45 62. 68. NE 62.

02/20/46 62. 50. E 45.

03/03/47 62. 73. E 66.

10/25/48 62. 52. NE 47.

08/29/49 62. 50. SW 45.

1 1/26/50 62. 80. SE 73.

1 1/03/51 62. 56. SW 5 1.

02/ 18/52 34. 57. N 57.

1 1/07/53 34. 67. NE 67.

08/31/54 75. 96. SE 85.

0 1/07/55 75. 64. NM 57.

02/25/56 75. 68. SW 60.

12/26/57 33. 63. S 63.

08/08/58 33. 75. N 75.

03/06/59 32. 47. SW 47.

09/12/60 32. 57. s 57.

02/04/61 32. 49. NE 49.

12/30/62 32. 49. NW 49.

04/05/63 32. 52. NW 52.

07/01/64 22. 45. N 48.

1 1 /04/65 22. 43. NW 46.

12/24/66 22. 47. NE 5 1.

02/16/67 22. 50. W 54.

1 1/12/68 22. 54. NE 58.

01/01/69 22. 51 . W 55.

02/03/70 22. 57. S 6 1.

03/04/71 22. 55. SW 59.

I 1/08/72 22. 48. NE 52.

09/06/73 22. 49. SW 53.

Ill
01/31/74 22. 61. NW 66

01/29/75 22. 40. NW 43

12/10/76 22. 46. SW 49

03/22/77 22. 56. NE 60

112
q: Z

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113
in

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114
NANTUCKET. MASS. (1947-1969) CAUTION SEE APPENDIX 1 AND SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 23.00

THE SAMPLE MEAN = 56.67

THE SAMPLE STANDARD DEVIATION = 7.95

THE SAMPLE MINIMUM = 45.88

THE SAMPLE MAXIMUM = 71.27

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

11/12/47 36. 70. NW 69.

01/02/48 36. 56. E 55.

02/28/49 36. 54. E 53.

09/11/50 36. 72. NE 71.

02/04/51 36. 52. NE 5 1.

02/27/52 36. 61. NW 60.

1 1/07/53 38. 56. NE 55.

09/11/54 38. 73. SE 7 1.

03/27/55 38. 53. SW 52.

03/17/56 38. 73. N 71 . 12/05/57 38. 56. N 55.

01/08/58 38. 59. NW 58.

03/12/59 38. 50. SE 49.

03/04/60 38. 59. N 58.

02/04/61 38. 56. E 55.

11/15/62 38. 50. NW 49.

10/29/63 38. 65. NW 63.

01/28/64 38. 49. NW 48.

02/25/65 38. 47. E 46.

12/25/66 38. 55. S 54.

04/28/67 38. 63. N 62.

02/08/68 38. 56. NE 55.

01/01/69 38. 47. W 46.

115
RETURN PERIOD

CIN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6.0

55.48

58.99

61 .23

62.89

64.21

1.52

1 .86

2.12

2.33

2.50

1 . 52

1 .93

2.28

2.56

2.80

7. 0

8.0

9.0

10.0

20.0

65.30

66.24

67.06

67.79

72.49

2.65

2.77

2.89

2.99

3.66

3.00

3.17

3.32

3.46

4.37

23.0

30.0

40.0

50.0

60.0

73.42

75. 19

77.10

78.57

79.78

3.79

4.05

4.33

4.55

4.72

4.56

4.91

5.29

5.58

5.83

70.0

80.0

90.0

100.0

200.0

80.79

81.67

82.44

83. 13

87.68

4.88

5.01

5. 12

5.22

5.91

6.03

6.21

6.37

6.51

7.43

300.0

400.0

500.0

600.0

700.0

90.33

92.21

93.67

94.86

95.87

6.31

6.59

6.81

6.99

7. 15

7.97

8.36

8.65

8.90

9.11

800. 0

900.0

1000.0

2000.

3000.0

96.74

97.51

98.20

102.73

105.38

7.28

7.40

7.50

8.19

8.59

9.28

9.44

9.58

10.52

11 .06

4000.0

5000.0

6000.0

7000.0

8000.

107.26

108.72

109.91

110.91

11 1.79

8.88

9.10

9.28

9.44

9.57

11.45

11 .75

11.99

12.20

12.38

900 0.0

10000. 0

^0000.0

100000.0

500000.0

112.55

113.24

123.75

128.28

138.80

9.69

9.79

1 1 .40

12.10

13.71

12.54

12.68

14.85

15.79

17.96

1 000000.0 143.33 14.41 18.90

116
\

\

1 a. a z X < UJ z z z

II II 1! 0) o ro « N s <o 01 O o o o o <0 « in in It <M 111 « * (M o (0 « «» 3

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<0 N ID n c^ in CM « 1- N N in o <t • • • • • t • • UJ (0 (0 1^ o 00 in <o « « <0 in in in in * * -1

117
DETROIT.MICHIGAN (1934-1977). REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 44.00

THE SAMPLE MEAN = 48.88

THE SAMPLE STANDARD DEVIATION = 6.83

THE SAMPLE MINIMUM = 36.00

THE SAMPLE MAXIMUM = 67.62

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

11/13/34 77. 52. NW 46.

03/17/35 77. 52. sw 46.

02/27/36 77. 49. w 43.

06/20/37 77. 45. sw 40.

12/27/38 77. 45. sw 40.

03/15/39 77. 47. sw 42.

1 1/11/40 77. 56. sw 50.

09/25/41 77. 52. sw 46.

1 1 /10/42 77. 66. w 58.

03/17/43 77. 68. sw 60.

05/26/44 77. 57. NW 50.

08/29/45 77. 50. NW 44.

04/02/46 77. 47. NW 42.

03/25/47 77. 54. N 48.

02/19/48 77. 49. NW 43.

0 1/19/49 77. 57. SW 50.

01/10/50 77. 52. NW 46.

06/01/51 77. 56. SW 50.

1 1/26/52 82. 65. SW 57.

04/10/53 82. 54. SW 47.

03/25/54 82. 56. sw 49.

07/27/55 82. 57. sw 50.

03/11 /56 82. 51 . w 45.

09/23/57 82. 45. w 40.

02/24/58 82. 47. w 41 • 03/15/59 82. 48. sw 42.

07/22/60 82. 77. NW 68«

03/06/61 82. 41. W 36.

09/13/62 82. 57. NW 50.

05/04/63 82. 60. NW 53.

06/19/64 82. 56. W 49.

04/12/65 82. 55. W 48.

03/01/66 82. 46. W 40.

02/16/67 20. 52. sw 57.

07/09/68 20. 50. w 55.

04/21/69 20. 38. w 42.

07/03/70 20. 48. NW 53.

0 1/26/71 20. 50. NW 55.

118
12/06/72 20. 50. W 55

04/16/73 20. 45. SW 49

01/27/74 20. 50. SW 55

03/24/75 20. 52. SW 57

03/05/76 20. 49. SW 54

07/19/77 20. 56. W 61

119
RETURN PERIOD

(IN YEARS

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTIMATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3.0

4.0

5.0

6.0

47.81

50.78

52.68

54.09

55.21

• 94

1.15

1 .32

1.45

1.55

.95

1.20

1 .42

1 .59

1 .74

7. 0

8.0

9.0

10.0

20.0

56. 15

56.94

57.64

58.26

62.25

1.64

1 .72

1 .79

1 .86

2.27

1 .86

1 .97

2.06

2. 15

2.72

30.0

40.0

44.0

50.0

60.0

64.55

66. 17

66.70

67.42

68.44

2.52

2.69

2.75

2.82

2.93

3.05

3.29

3.36

3.47

3.62

70. 0

80.0

90.0

100.0

200.0

69.30

70.05

70.70

71.29

75. 15

3.03

3.11

3.18

3.25

3.67

3.75

3.86

3.95

4.04

4.62

300. 0

400.0

500.0

600.0

700. 0

77.41

79.00

80.24

81,26

82. 1 1

3.92

4.09

4.23

4.34

4.44

4.95

5.19

5.38

5.53

5.66

800.0

900.0

1 000.0

2000.0

3000.0

82.85

83.51

84.09

87.94

90. 19

4.52

4.59

4.66

5.09

5.34

5.77

5.87

5.95

6.53

6.87

4000.

5000.0

6000.0

7000.0

8000.0

91.78

93.02

94.03

94. 89

95.63

5.52

5.65

5.77

5.86

5.95

7.11

7.30

7.45

7.58

7.69

9000.0

10000.0

50000.0

100000.0

500000.

96.28

96.87

105.80

109.64

118.58

6.02

6. 08

7.08

7.52

8.52

7.79

7.88

9.23

9.81

11.16

1 000000.0 122.42 8.95 11 .74

120
z inin « z I in I ^ I 1^ o« Q.

CO UJ

-«

u

vo a.

II

u

I-< I 3 S I < - I in K t- I (M I/) I O liJ I rg I- i - o I n J I o a T I > 1^

X a: 11 X a X

<» z X U 111 a - X >• u

1- >-

X 01 u. p J It N < 01 X

4251 ENTI

N

CO

X ». • z o o « 1 Q. 1-

Q z X < < »^ UJ J z z z w HI

II II II a: •* N N N o CO in N o -> tr CM o o « OO N « « in O n N (M <0 o to UJ u

0> in (0 1^ Q. S « in n CM c « N in <* > y- lA N •* CO eg « o K o « * CO (0 « P) - o _) t • f • • • • • • t lu a N * (S in CM 0> « « <0 lO in in in 4 * * n

EXTREME

VAL

PROBABILITY

121
GRAND RAPIOS.MICHIGAN (1951-1977*. REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 27.00

THE SAMPLE MEAN = 48.33

THE SAMPLE STANDARD DEVIATION = 10.11

THE SAMPLE MINIMUM - 36.20

THE SAMPLE MAXIMUM = 66.77

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

1 0/30/5

64. 47 . W 43.

11/ 26 / 5 2 64 . 65. sw 59.

o*r . 46 « O If 4 2.

03/25/54 64. 57. sw 52.

1 1/16/55 64. 44. w 40.

03/06/56 64. 52. NW 47.

03/15/57 64. 45. w 41.

1 1/29/58 64. 40. NW 36.

09/26/59 64. 40. sw 36.

04/11/60 64. 43. sw 39.

03/27/61 64. 40. sw 36.

04/30/62 64. 41 . w 37.

04/03/63 64. 45, sw 41.

06/09/64 20. 58. w 63.

06/20/65 20. 52. w 57.

03/18/66 20. 40. sw 44.

01/16/67 20. 43. sw 47.

04/08/68 20. 50. sw 55.

10/07/69 20. 50. sw 55.

1 1/22/70 20. 40. w 44.

02/05/71 20. 58. sw 63.

01/24/72 20. 56. sw 6 1.

04/16/73 20. 37. s 41 • 03/22/74 20. 47. sw 51.

1 1/10/75 20. 61 . s 67.

03/20/76 20 . 61 . sw 67.

07/01/77 20. 39. w 43.

122
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN, DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3.0

4.0

5.0

6.0

46.81

51.21

54.03

56,1 1 57.77

1.78

2. 18

2.49

2.73

2.94

1.79

2.27

2.68

3.01

3.28

7.0

8.0

9.0

10.0

20.0

59. 15

60.33

61.36

62.27

68. 18

3. 1

3.26

3.39

3.51

4.29

3.52

3.72

3.90

4.06

5.13

27. 0

30.0

40.0

50.0

60.0

70.70

71.58

73.98

75,83

77.34

4.63

4.75

5.08

5.34

5.54

5.60

5.76

6.21

6.55

6. 84

70.0

80.0

90.0

100. 0

200.0

78.61

79.72

80.69

81.56

87.27

5.72

5.87

6.01

6.13

6.93

7.08

7.29

7.47

7.63

8.72

30 0.0

400.0

500. 0

600.0

700.0

90.60

92.97

94. 80

96.30

97.56

7.40

7.73

7.99

8.21

8.39

9.35

9.81

10. 16

10.44

10.69

800.0

900.0

1 000.

2000.0

3000.0

98.66

99.63

100.49

106. 18

109.51

8.54

8.68

8. 80

9.61

10.08

10.90

11 .08

1 1 .25

12.34

12.98

4000.0

5000.0

6000.0

7000.0

8000.0

111.87

1 13.71

1 15.20

116.47

117.56

10.42

10.68

10.90

I 1 .08

II .23

13.43

13.79

14.07

14.32

14.53

9000.0

10000.0

50000.0

100000.

500000.

1 1 8.53

119.40

132.60

138.29

151.51

11.37

1 1 .49

13.38

14.20

16.09

14.71

14.88

17.43

18.53

21 .08

1 000000.0 157.20 16.91 22. 18

123
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in o m + N n « * •ro II O z

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12^1
LANSING. MICHIGAN < 1949-1977). SEE SECT. 2.1

THE SAMPLE NUMBER OF OBSERVATIONS = 29.00

THE SAMPLE MEAN = 52.95

THE SAMPLE STANDARD DEVIATION = 6.59

THE SAMPLE MINIMUM = 41.89

THE SAMPLE MAXIMUM = 67.02

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

04/23/49 52. 52. M 48.

01/18/50 52. 52. SM 48.

03/24/51 52. 52. NW 48.

1 1/26/52 52. 67. SW 62.

04/09/53 52. 72. NM 67.

06/25/54 52. 51 . W 47.

03/22/55 52. 58. w 54.

03/11/56 52. 50. SW 47.

02/26/57 52. 45. w 42.

04/24/58 52. 45. w 42.

07/30/59 78. 56. NE 49.

03/22/60 78. 56. NW 49.

03/06/61 78. 59. W 52.

04/30/62 78. 60. W 53.

06/09/63 78. 63. SE 56.

11/12/64 20. 47. SM 51.

03/18/65 20. 47. SW 51.

10/10/66 20. 45. w 49.

02/16/67 20. 56. w 6 1.

06/23/68 20. 49. NW 54.

09/06/69 20. 54. W 59.

12/01/70 20. 54. W 59.

02/27/71 20. 56. SW 61 . 01/25/72 20. 43. w 47.

01/04/73 20. 42. SM 46.

01/27/74 20. 45. SW 49.

06/15/75 20. 54. NW 59.

03/30/76 20. 52. SW 57.

04/02/77 20. 59. SW 65.

125
RETURN PERIOD

( IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DI STRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTIMATED

STAN, DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3. 0

4.0

5.0

6.0

51. 94

54.84

56.70

58.08

59. 17

1.12

1 .37

1 .57

1.72

1 .85

1.12

1 .43

1 .69

1 .89

2.07

7. 0

8.0

9.0

10.0

20.0

60.08

60.86

61 .54

62. 14

66.04

1 .96

2.05

2. 13

2.21

2.70

2.21

2.34

2.46

2.56

3.23

29.0

30.0

40.0

50.0

60.0

68. 10

68.28

69.87

71,09

72.08

2.97

2.99

3.20

3.36

3.49

3.59

3.63

3.91

4.13

4.31

70. 0

80.0

90.0

100.0

20 0.0

72.93

73.65

74.30

74.87

78.64

3.60

3.70

3.78

3.86

4.36

4.46

4.59

4.70

4.81

5.49

300,0

400.0

500.0

600.0

700. 0

80,84

82.40

83.61

84.60

85.43

4,66

4.87

5. 03

5.17

5.28

5.89

6.17

6,40

6.58

6.73

800. 0

900,0

1 000,0

2 00 0,0

3000,

86. 16

86.79

87.36

91.12

93.32

5.38

5.46

5,54

6,05

6,35

6,86

6,98

7,08

7,77

8,17

4000,0

5000,0

6000.0

7000,0

3000,0

94,87

96.08

97,07

97,91

98. 63

6.56

6.73

6. 86

6.97

7.07

8.46

8.68

8.86

9.02

9.15

9000.

10000.0

50000.0

100000.0

500000.0

99.27

99.84

108.56

1 12.31

1 2 1 , 03

7, 16

7,24

8.43

8.94

10. 13

9.27

9.37

10.98

1 1 .67

13.27

1000000,0 124,79 10.65 13,97

126
SAULT STE MARIE, MICHI GAN (1941-1977) . SEE SECT. 2.1

THE SAMPLE NUMBER OF OBSERVATIONS = 37.00

THE SAMPLE MEAN = 48.44

THE SAMPLE STANDARD DEVIATION = 7.65

THE SAMPLE MINIMUM • = 35.97

THE SAMPLE MAXIMUM = 67.02

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVAT ION(FTJ AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

10/07/41 43. 50. SW 48.

03/09/42 43. 54. NW 52.

09/07/43 43. 62. SM 59.

03/29/44 52. 60. SE 56.

04/04/45 52. 72. SW 67.

1 1/22/46 52. 64. NW 60.

1 1 /07/47 52. 46. SE 43.

1 1/17/48 52. 66. W 61.

12/12/49 33. 52. SW 52.

05/05/50 33. 49. SE 49.

10/31/51 33. 47. W 47.

01/15/52 33. 43. w 43.

I 1 /03/53 33. 40. w 40.

01/30/54 33. 36. w 36.

03/12/55 33. 44. w 44.

03/11/56 33. 45. N 45.

12/23/57 33. 45. w 45.

11/05/58 33. 50. w 50.

12/09/59 33. 53. w 53.

01/08/60 33. 48. w 48.

01/17/61 33. 42. NW 42.

12/29/62 40. 40. W 39.

1 1/23/63 40. 58. NW 56.

04/14/64 40. 62. SW 60.

01/08/65 40. 59. w 57.

04/28/66 40. 42. SE 41.

01/17/67 20. 35. NW 38.

02/22/68 20. 47. W 5 1.

12/02/69 20. 38. NW 42.

09/10/70 20. 43. W 47.

12/24/71 20. 39. NW 43.

01/19/72 20. 39. W 43.

10/15/73 20. 38. NW 42.

01/31 /74 20. 44. NW 48.

1 1/10/75 20. 53. NW 58.

12/10/76 20. 45. NW 49.

09/24/77 20. 36. SE 39.

127
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN, DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6.0

47.24

50.59

52.74

54.33

55.59

1.15

1.41

1 .61

1 .77

1 .90

1 . 16

1 .47

1 .73

1 .95

2. 12

7.0

8. 0

9.0

10.0

20. 0

56.64

57.53

58.32

59.0 2

63.51

2.01

2.11

2.19

2.27

2.77

2.27

2.41

2.52

2.63

3.32

30.0

37.0

40.0

50.0

6 0.0

66. 10

67.43

67.93

69.34

70.49

3.07

3.23

3.29

3.45

3.59

3.73

3.94

4.01

4.24

4.42

70.0

80.0

90.0

100.0

200.0

71.46

72.30

73.04

73.70

78. 05

3.70

3. 80

3.89

3.97

4.48

4.58

4.71

4.83

4.94

5.64

300. 0

400.0

500.0

600.0

700. 0

80.59

82.39

83.78

84.92

85. 89

4.79

5. 00

5. 17

5.31

5.42

6.05

6.34

6.57

6.75

6.91

800.0

900.0

1 000.0

2000.0

3 00 0.0

86.72

87.46

88. 12

92.45

94.98

5.52

5.61

5.69

6.22

6.52

7.05

7.17

7.27

7.98

8.40

4000.0

5000.0

6000.0

7000.0

8000.0

96.78

98. 18

99.32

100.28

101.1

6.74

6.91

7. 05

7. 16

7.27

8.69

8.92

9.10

9.26

9.40

9000.0

10000.0

50000.

1 00000.0

500000.0

101.85

102.51

112.57

1 16.90

126.96

7.35

7.43

8.66

9.18

10.41

9.52

9.63

I 1 .27

I I .98

13.64

1000000.0 131.30 10.94 14.35

128
DULUTH, MINNESOTA (1950-1977J

THE SAMPLE NUMBER £IF OBSERVATIONS 28 • 00

THE SAMPLE MEAN 50 .88

THE SAMPLE STANDARD DEVIATION 7 .74

THE SAMPLE MI NIMUM 39 .92

THE SAMPLE MAXIMUM 69 .63

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATI0N(FT1 AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

09/21/50 53. 56. NE 52.

04/22/51 53. 49. W 45.

07/22/52 53. 72. w 67.

04/30/53 53. 56. NE 52.

04/17/54 53. 49. W 45.

12/03/55 53. 53. NE 49.

10/13/56 53. 61 . S 57.

05/20/57 53. 61 . NE 57.

04/05/58 53. 75. NE 70.

05/12/59 53. 61. W 57.

1 1/28/60 53. 68. E 63.

05/14/61 53. 46. NE 43.

04/27/62 53. 48. NE 45.

04/16/63 53. 48. SW 45.

01/23/64 53. 56. NE 52.

02/28/65 53. 50. E 46.

03/03/66 53. 57. NE 53.

04/30/67 53. 63. E 58.

04/23/68 53 . 45. NW 42.

04/21/69 53. 43. NW 40 . 04/08/70 53. 54. W 50.

08/09/71 53. 49. W 45.

01/24/72 53. 57. NW 53.

10/13/73 53. 43. W 40.

10/31/74 53. 50. NE 46.

03/23/75 21. 54. NE 59.

03/02/76 21 . 42. E 46.

09/09/77 21. 45. SW 49.

129
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN, DEV.

SAMPL, ERROR

CRAMER-RAO

ESTIMATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6.0

49.69

53. 13

55.34

56.97

58.27

1 .34

1 .64

1 .87

2.06

2.21

1 .34

1 .71

2.01

2.26

2.47

7.0

8.0

9.0

10.0

20.0

59.35

60.27

61.07

61.79

66.41

2.34

2.45

2.55

2.64

3.23

2.64

2.80

2.93

3.05

3.86

28.0

30.0

40,0

50.0

60,0

68.62

69. 07

70. -95 72.40

73.58

3.51

3.57

3.82

4.01

4.17

4.25

4.33

4.67

4.93

5.14

70. 0

80.0

90.0

100.0

200.0

74.58

75.44

76.20

76.88

81.35

4.30

4.42

4.52

4.61

5.21

5.32

5.48

5.62

5.74

6.56

300. 0

400.0

50 0.0

600, 0

700.0

83,96

85.81

87,25

88.42

89.41

5.57

5.82

6.01

6.17

6.31

7.03

7.37

7.64

7.85

8.04

800.0

900,0

1000,0

2000,0

3000,

90.27

91 .03

91.71

96. 16

98.77

6.42

6. 53

6.62

7.23

7.58

8. 19

8.33

8.46

9.28

9.76

4000.0

5000.

6000.0

7000.0

8000.0

100.61

102. 05

103.22

104.21

105.07

7.84

8.03

8.19

8.33

8.45

10.10

10.37

10.58

10.77

10,93

9000,0

10000,0

50000.

1 0000 0.

500000.

10 5.82

106.50

1 16.84

121.29

131 .64

8. 55

8.64

1 0. 07

10.68

12.10

11 .07

1 1 . 19

13.11

13.93

15.85

1 000000.0 136.09 12.72 16.68

130
MINNEAPOLIS. MI NNESOTA ( 1938-1977J

THE SAMPLE NUMBER OF OBSERVATIONS 40 .00

THE SAMPLE MEAN 49 .19

THE SAMPLE STANDARD DEVIATION 9 .06

THE SAMPLE MINIMUM 38 .15

THE SAMPLE MAXIMUM 81 .63

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

05/03/38 61 . 50. S 46.

06/07/39 61 . 63. NW 57.

11/1 1/40 75. 43. W 38.

03/16/41 75. 50. NW 44.

05/29/42 75. 45. NW 40 . 08/31/43 75. 49. S 43.

06/04/44 75 . 59. SW 52.

10/30/45 75. 57. w 51 . 12/16/46 75. 52. w 46.

06/28/47 75. 57. SW 5 1.

07/01/48 75. 45. SE 40 . 10/10/49 75. 73. s 65.

05/05/50 75. 52. SW 46.

07/20/51 75. 92. w 82.

06/24/52 75. 52. NW 46.

06/03/53 75. 54. SE 48.

03/12/54 75. 46. E 41 . 04/20/55 75. 48. SW 43.

12/11/56 75. 47. NW 42.

07/14/57 75. 49. NW 43.

11/17/58 21. 60. SW 65.

05/05/59 21 . 42. SW 46.

04/11/60 21. 42. NW 46.

05/11/61 21 • 40. S 43.

07/21/62 21. 47. N 51 . 04/03/63 21 . 45. SW 49.

05/23/64 21. 61 • NW 66.

02/21/65 21. 45. NW 49.

07/10/66 21. 52. NE 56.

08/06/67 21 . 62. N 67.

02/16/68 21 • 44. NW 48.

04/21/69 21 . 42. N 46.

04/29/70 21 . 45. W 49.

02/27/71 21 . 42. NW 46.

09/06/72 21 . 38. SW 41.

04/09/73 21 . 42. NE 46.

06/20/74 21 . 49. N 53.

07/23/75 21 . 50. NW 54.

131
01/28/76 21. 37. NW 40

11/20/77 21. 41. W 44

132
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134
JACKSON, MISSISSIPPI (1948-1976). SEE SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 29.00

THE SAMPLE MEAN = 45.89

THE SAMPLE STANDARD DEVIATION = 7.13

THE SAMPLE MINIMUM = 36.94

THE SAMPLE MAXIMUM = 64.44

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT 1 OM ABOVE

GROUND (CORRECTED SPEED)

08/15/48 46. 51 . NW 48.

05/30/49 46. 56. NW 53.

03/27/50 46. 59. NW 56.

12/14/51 46. 59. NW 56.

03/10/52 46. 68. S 64.

04/29/53 46. 49. S 46.

12/05/54 46. 56. NW 53.

03/25/55 46. 56. NW 53.

07/05/56 39. 38. E 37.

07/02/57 39. 54. N 52.

02/27/58 39. 40. W 39 . 03/04/59 30. 42. SE 43.

01/29/60 30. 38. NW 39.

12/17/61 30. 40. N 4 1.

04/30/62 30. 57. NW 58.

06/16/63 30. 37. N 38.

10/04/64 20. 36. N 39.

09/10/65 20. 38. SE 42.

03/03/66 20. 45. NW 49.

05/31/67 20. 40. NW 44.

03/20/68 20. 40. S 44.

06/30/69 20. 40. SE 44.

03/03/70 20. 36. NW 39.

02/21/71 20. 37. SE 41 . 03/27/72 20. 41 . NW 45.

1 1/04/73 20. 42. NW 46.

02/21/74 20. 39. S 43.

05/29/75 20. 36. sw 39.

08/01/76 20. 37- NE 4 1 .

135
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136
COLUMBI AiMISSOURI (1950-1977J. REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS 28.00

THE SAMPLE MEAN 50. 15

THE SAMPLE STANDARD DEVIATION 6.48

THE SAMPLE MINIMUM 35.79

THE SAMPLE MAXIMUM 62.39

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATIONCFT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

05/05/50 48. 58. SW 55.

06/19/51 48. 58. NW 55.

09/ 17/52 48. 63. N W 59 . 04/15/53 46. 57 • NW 54 • 08/29/54 48. 56. NW 53.

11/16/55 48. 49. NW 46.

04/07/56 48. 56. NW 53.

12/10/57 48. 56. NW 53.

07/30/58 48. 61 . NW 57.

10/23/59 48. 49. NW 46.

04/17/60 48. 54. SW 5 1.

05/25/61 48. 47. NW 44.

04/12/62 48. 38. NW 36.

05/15/63 48. 46. NW 43.

03/29/64 48. 59. NW 56.

04/11/65 48. 50. SW 47.

04/01/66 48. 45. NW 42.

01/24/67 43. 52. SW 49.

12/04/68 48. 42. NW 40.

07/26/69 48. 50. NW 47.

05/10/70 20. 52. NW 57.

12/15/71 20. 57. SW 62.

02/18/72 20. 35. NW 38.

05/07/73 20. 50. W 55.

08/31/74 20. 50. NW 55.

05/20/75 20. 47. SW 51.

03/30/76 20. 45. SW 49.

03/30/77 20. 47. SW 5 1 .

137
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTI MATEO

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3.0

4,0

5. 0

6.0

49.20

51 .95

53. 71

55.01

56. 04

1 . 12

1 .37

1.57

1.72

1 .85

1.12

1 .43

1 .69

1 .89

2.07

7. 0

8. 0

9.0

10.0

20.0

56.90

57.64

58.28

58. 85

62.54

1 . 96

2.05

2.13

2.21

2.70

2.21

2.34

2.46

2.56

3.23

28.0

30.0

40.0

50.0

60.0

64. 30

64.66

66. 16

67.31

68.25

2.94

2.99

3.20

3.36

3.49

3.56

3.63

3.91

4.13

4.31

70.0

80. 0

90.0

100.0

200. 0

69.05

69.74

70.35

70.89

74.45

3.60

3.70

3. 79

3. 86

4.37

4. 46

4.59

4 .70

4.81

5.49

300. 0

400. 0

500. 0

600. 0

700. 0

76.53

78. 01

79. 15

80. 09

80.88

4. 66

4.87

5. 04

5. 17

5.28

5.89

6.18

6.40

6.58

6.73

800.0

900.0

1 000.

2000.0

3000.

81 . 56

82. 17

82.71

86.26

88.34

5.38

5.47

5.54

6.05

6. 35

6.86

6.98

7.08

7.77

8. 18

4000.

5000.

6000,0

7000.

8000,

89. 81

90.95

91 .89

92.68

93.36

6.56

6,73

6,86

6,98

7,08

8.46

8.68

8.87

9.02

9.15

9000*0

10000.0

50000.

100000.0

500000.0

93.96

94.50

102.75

106.30

1 1 4.55

7. 16

7.24

8. 43

8, 94

10.14

9.27

9.37

10,98

1 1 ,67

13. 28

1000000.0 118.10 10.65 13.97

138
KANSAS CITYt MISSOURI (1934-1977). REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 44.00

THE SAMPLE MEAN = 50.53

THE SAMPLE STANDARD DEVIATION = 7.85

THE SAMPLE MINIMUM = 37.21

THE SAMPLE MAXIMUM = 75.23

DATE ANEMOMETER

ELEVATION(FT»

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

07/13/34 45. 60. NW 57.

04/14/35 45. 49. NW 47.

07/27/36 45. 70. NW 67.

07/15/37 45. 57. NW 54.

08/20/38 45. 59. NW 56.

06/10/39 45. 57. W 54.

03/28/40 76. 61. SW 54.

08/25/41 76. 72. NW 64.

06/18/42 76. 52. NW 46.

03/15/43 76. 42. NW 37.

06/13/44 76. 49. W 43.

06/30/45 76 . 66. NW 58.

03/08/46 76. 47. NW 42.

05/01 /47 76. 56. NW 50.

0 1/01/48 76. 66. NE 58.

12/11/49 76. 56. S 50 . 05/05/50 76. 68. SW 60.

03/31/51 76. 65. NW 58.

03/12/52 76. 70. SW 62.

04/15/53 76. 61 . W 54.

05/18/54 76. 56. NW 50.

04/28/55 90. 54. SW 47.

05/22/56 90. 56. W 49.

06/22/57 90. 56. NW 49.

1 1/17/58 90. 56. SW 49.

05/30/59 90. 52. W 45.

08/16/60 78. 56. SW 49.

05/14/61 78. 43. SW 38.

07/11/62 78. 50. w 44.

04/02/63 78. 55. SW 49.

07/01 /64 22. 47. N 51 . 06/29/65 22. 43. N 46.

08/17/66 22. 44. NE 47.

06/07/67 22. 41 . NW 44.

12/22/68 22. 43. SW 46.

07/09/69 22. 54. SW 58.

09/03/70 22. 40. w 43.

04/27/71 22. 42. NW 45.

139
12/30/72 22. 46. SW 49

07/02/73 22. 70. NW 75

03/10/74 22. 40. E 43

12/14/75 22. 41. SW 44

12/28/76 22. 50. N 54

04/10/77 22. 36. SW 39

1^0
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141
ST.LOUIS»MISSOURI (1959-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 19.00

THE SAMPLE MEAN = 47.39

THE SAMPLE STANDARD DEVIATION = 7.39

THE SAMPLE MINIMUM = 33.37

THE SAMPLE MAXIMUM = 65.68

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

03/15/59 82. 38. W 33.

04/01/60 82. 55. S 48.

1 1/02/61 82 . 41 . s 36.

08/03/62 20. 38. s 42.

06/03/63 20. 45. w 49.

06/29/64 20. 60. SE 66.

08/27/65 20. 54. NW 59 . 08/15/66 20. 48. NW 53.

10/24/67 20. 45. SW 49.

03/12/68 20. 42. NE 46.

1 0/10 /69 20. 45. SW 49.

05/29/70 20. 42. SE 46.

12/15/71 20. 42. SW 46.

02/18/72 20. 40. NW 44.

06/18/73 20 . 43. N 47.

06/09/74 20. 50. SW 55.

08/25/75 20. 41 . NW 45.

03/12/76 20. 38. SW 42.

05/04/77 20. 42. SW 46.

142
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DI STRI BUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3. 0

4.0

5.0

6.0

46.29

49.59

51,70

53.27

54.51

1.55

1 .90

2.17

2.38

2.56

1 . 56

1 .98

2 .34

2. 62

2.86

7.0

8.0

9. 0

10.0

19.0

55.54

56.43

57.20

57.88

61 .99

2-71

2. 84

2.96

3.06

3.69

3. 07

3.24

3.40

3.54

4.41

20.0

30. 0

40. 0

50.0

60.0

62.31

64. 86

66.66

68. 05

69. 18

3.74

4.14

4.43

4.65

4.84

4.48

5.02

5.41

5.72

5. 96

70. 0

80.0

90.0

100.0

200.0

70. 1 3

70. 96

71.69

72.34

76.62

4.99

5.12

5.24

5.35

6. 05

6 . 17

6 .36

6.52

6.66

7.61

300. 0

400.0

500.0

600.0

700. 0

79. 12

80.89

82.27

83.39

84.34

6.46

6.75

6.97

7.16

7.32

8.16

8.55

8.86

9.11

9.32

800. 0

900. 0

1000.0

2000.

30^0.0

85. 16

85.89

86.54

90.80

93.30

7.45

7.57

7.68

8.38

8.80

9.50

9.67

9.81

10.76

i 1 .32

4000.

5000.

6000.0

7000.

8000 . 0

95. 07

96.44

97.56

98.51

99.33

9. 09

9.32

9.50

9.66

9.80

1 1 .72

12.03

12.28

12.49

12.67

9000.0

10000.0

50000.

100000.

500000.0

100. 06

100. 71

110.61

114.87

124. 79

9.92

10.03

1 1 .67

12.39

14. 04

12.84

12.98

15.20

16.16

18.39

1 000000.

129. 0 5 14.75 19.35
SPRINGFI ELD. MISSOURI (1941-1977). REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 37.00

THE SAMPLE MEAN = 50.13

THE SAMPLE STANDARD DEVIATION = 7.35

THE SAMPLE MINIMUM = 38.31

THE SAMPLE MAXIMUM = 71.15

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

04/17/41 67. 52. S 47.

03/16/42 67. 53. sw 48.

04/11/43 67. 56. NW 50 •

1 0/02/44 67. 49. NW 44.

12/30/45 59. 70. NW 64.

05/02/46 59. 66. W 60.

06/27/47 59. 57. N 52.

09/07/48 59. 54. N 49.

12/21/49 59. 55. W 50 . 04/10/50 59. 51. s 47.

06/21/559. 57. s 52.

03/12/52 59. 57. s 52.

05/26/53 59. 65. N 59.

08/19/54 59. 59. w 54.

05/26/55 59. 56. sw 51 • 05/30/56 59. 52. NE 48.

05/22/57 59. 56. NW 5 1.

06/10/58 59. 54. NW 49.

06/1 1/59 59. 57. N 52.

03/29/60 59. 65. sw 59.

1 1/21/61 59. 59. SE 54.

06/18/62 59. 47. NW 43.

09/10/63 59. 52. SE 48.

01/19/64 20. 35. S 38.

04/05/65 20. 65. SW 7 1.

05/17/66 20. 38. N 42.

04/23/67 20. 47. N 51.

04/22/68 20. 45. N 49.

07/02/69 20. 43. NE 47.

06/24/70 20. 43. E 47.

12/14/71 20. 60. SE 66.

09/07/72 20. 38. NW 42.

07/10/73 20. 39. NE 43.

08/17/74 20. 42. NW 46.

05/20/75 20. 45. S 49.

1 2/09/76 20. 35. S 38.

05/30/77 20. 37. NW 41 .
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BILLINGS, MONTANA (1939-1977). REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 39.00

THE SAMPLE MEAN = 59.39

THE SAMPLE STANDARD DEVIATION = 8.01

THE SAMPLE MINIMUM = 45.82

THE SAMPLE MAXIMUM = 84.19

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVAT ION( FTi AND DIRECTION (RECORDED WIND SPEED AT IQM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

0 5/1 <9/"5Q 39 . 68 . NW 66 . 07/00 40 39 . 70. N W 6 8.

05/ 13/4

39 . 50 . N 4 9.

03/06/42 39. 55. NM 53 •

1 0/13/43 39 . 63 . N W 6 1.

08/22/44 39 . 61 . N 5 9.

0 1/ 13/4 5 39 • 56 « N W 54 . OS/ ?6 /4f) 39 . 66 . N W 6 4.

0 7/1 fl /4 7 J^ . 73 . N 7 1.

07/01 /4H 39 . 66 • NW 6 4.

*j"^Q^ ». N W 66.

*j ^ . 66 . W 6 4. o ^ • 3 o • N W <=> ft -

fto Ao « IN n ft ft _

1 2/ 28/53 39 . 66 • N W 6 4.

04/14/54 39. 60. NW 58.

07/25/55 39. 58. NW 56.

03/03/56 39. 61 . NW 59.

1 1/26/57 39. 57. NW 55.

07/02/58 23. 64 . NW 68 . 09/08/59 23 . 60. NW 64.

06/20/60 23. 52. NW 55.

05/10/61 23. 58. NW 62.

06/03/62 23. 47. W 50 . 02/01/63 23. 72. W 77.

07/ 14/64 23. 59. NW 63.

0 1/31/65 23. 54. NW 58.

08/04/66 23. 48. NW 51 .

1 0/19/67 23. 56. NW 60.

06/13/68 23. 79. NW 84.

06/06/69 23. 50. W 53.

04/07/70 23. 49. NW 52.

03/11/723. 49. NW 52.

02/16/72 23. 50. W 53.

11/12/73 23. 43. NW 46.

01 / 14/74 23. 54. W 58.

12/01/75 23. 49. w 52.

03/23/76 23. 50. NW 53.
12/14/77 23 45. NW
RETURN PERIOD

(IN YEARSJ

2.0

3,0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

20.0

30.0

39.0

4-0.0

50.0

60. 0

70.0

80. 0

90.0

100. 0

200. 0

300. 0

400.0

500. 0

600.0

700. 0

800. 0

900. 0

1000.0

2000.0

3000.0

4000.0

5000.

6000.0

7000.0

8000.0

9000.

10000.0

50000.0

100000.

500000.0

1000000.0

PREDICTED EXTREME W BASED ON

EXTREME VALUE TYPE

DISTRIBUTION

58.14

61 .65

63. 90

65.57

66.89

67.99

68.93

69.75

70.48

75. 20

77.92

79.66

79.83

81.31

82.52

83.53

84.41

85. 1 9

85. 89

90.45

93.11

95.00

96.46

97. 66

98.67

99. 54

100.32

101.01

105.55

108.21

110.10

1 1 1 .56

1 12.75

1 13.76

1 14.64

115.41

116.10

126. 65

131 .20

141.75

146.30

ND ESTIMATED

STAN. DEV.

1 SAMPL. ERROR

CRAMER-RAO

1.18

1 .44

1 .64

1 .80

1.94

2.05

2.15

2.24

2.31

2.83

3.13

3.33

3.35

3.52

3.66

3.77

3. 88

3.97

4. 05

4.57

4.88

5.10

5.27

5.41

5. 53

5.64

5.73

5.81

6. 34

6.65

6.88

7. 05

7. 19

7.31

7.41

7.50

7.58

8.83

9.37

10.62

11.16

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

1.18

1.50

1 .77

1 .98

2. 17

2.32

2.45

2.57

2.68

3.39

3.80

4.07

4.09

4.32

4.51

4.67

4.81

4 .93

5.04

5 .75

6.17

6.47

6.70

6 .89

7. 05

7.19

7.31

7 .42

8.14

8 .56

8.86

9.10

9. 29

9.45

9. 59

9.71

9 . 82

11.50

12.22

13.91

14.63

m
GREAT FALLS. MONTANA CI 944-1 977)

THE SAMPLE NUMBER OF OBSERVATIONS = 34.00

THE SAMPLE MEAN = 59.02

THE SAMPLE STANDARD DEVIATION = 6.48

THE SAMPLE MINIMUM = 49.43

THE SAMPLE MAXIMUM = 74.15

DATE ANEMOMETER

ELEVATION( FTI

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

01/17/44 75. 64. SW 57.

09/08/45 75. 73. NW 65.

04/26/46 75. 70. w 62.

06/13/47 75. 65. w 58.

12/19/48 75. 72. SW 64.

10/28/49 75. 73. w 65.

1 1/21/50 75. 67. SW 59.

03/15/51 75. 73. w 65.

07/04/52 75. 66. SW 59.

08/24/53 75. 68. w 60.

02/24/54 75. 72. w 64.

1 1/03/55 75. 73. SW 65.

12/10/56 75. 82. SW 73.

07/22/57 75. 68. SW 60.

12/31/58 75. 75. SW 67.

01/18/59 75. 56. SW 50.

09/04/60 22. 69. SW 74.

03/01/61 22. 56. SW 60.

11/20/62 22. 61 . SW 66.

12/31/63 22. 51 . SW 55.

09/30/64 22. 47. w 5 1 . 10/06/65 22. 56. w 60.

11/25/66 22. 51 . SW 55.

10/19/67 22. 56. SW 60.

04/11/68 22. 47. w 51 . 02/03/69 22. 47. SW 5 1.

06/27/70 22. 58. SW 62.

12/31/71 22. 47. SW 51.

12/26/72 22. 50. SW 54.

10/13/73 22. 48. SW 52.

0 1/15/74 22. 55. SW 59.

1 0/04/75 22. 52. SW 56.

07/1 1/76 22. 48. SE 52.

02/16/77 22. 46. SW 49.

1^19
RETURN PERIOD

(IN YEARS!

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL, ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6.0

58.03

60. 83

62.63

63.95

65.01

1 .02

1 .25

1.42

1 .56

1 .68

1 .02

1 .30

1 .53

1 .72

1 .87

7.0

8.0

9.0

10.0

20.0

65.89

66.64

67.30

67.88

71.64

1 .77

1 . 86

1 . 94

2. 00

2.45

2.01

2. 12

2.23

2.32

2.93

30. 0

34.0

40.0

50.0

60. 0

73.81

74.47

75.33

76.51

77.48

2.71

2.80

2.90

J. 05

3.17

3.29

3.40

3.54

3.74

3.91

70.0

80. 0

90.0

100.0

20 0.0

78.29

78.99

79.61

80. 17

83.80

3.27

3.36

3.43

3.50

3.96

4.04

4.16

4.27

4.36

4 .98

300.0

400.0

500. 0

60 0.0

70 0. 0

85.93

87.43

88.60

89.56

90.36

4.23

4.42

4.57

4.69

4.79

5.34

5.60

5.80

5.96

6.10

800.0

900. 0

1000.0

2000.

3000.0

91.06

91 .68

92.23

95.86

97.98

4.88

4. 96

5.03

5.49

5.76

6.22

6.33

6 .42

7.05

7.41

4000.0

5000.

6000.0

7000.

8000.

99.48

100.65

101.60

102.41

103. 1

5.95

6. 10

6.22

6.33

6.42

7.67

7.87

8.04

8.18

8.30

9000.0

10000.0

50000.

100000.

500000.

103.72

104.27

1 12. 69

116.31

124.74

6. 49

6.57

7.64

8.11

9. 19

8.41

8 .50

9.96

10 .58

12. 04

1 000000.0 128.36 9.66 12.67

150
HAVRE, MONTANA (1961-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = THE SAMPLE MEAN = THE SAMPLE STANDARD DEVIATION = THE SAMPLE MINIMUM = THE SAMPLE MAXIMUM =

DATE ANEMOMETER FASTEST MILE WIND SPEED

ELEVATION(FT) AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

07/28/61 20« 71 . NW

1 1/20/62 20. 70. sw 02/05/63 20. 58. SM

03/01/64 20. 52. SW

06/12/65 20. 59. W 05/ 16/66 20. 43. w 06/03/67 20. 50. NW

08/11/68 20. 54. NW

07/02/69 20. 56. NW

06/27/70 20. 44. SW

09/11/71 20. 52. w 02/16/72 20. 52. SW

08/13/73 20. 52. NW

06/20/74 20. 42. S.W 08/21/75 20. 54. SW

08/25/76 20. 49. SW

07/29/77 20. 42. NW

17.00

57.95

9.23

45-97

77.72

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

78.

77.

63.

57.

65.

47.

55.

59.

61 . 48.

57.

57.

57.

46.

59.

54.

46.

151
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152
HELENA, MONTANA (1940-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 38.00

THE SAMPLE MEAN = 55.21

THE SAMPLE STANDARD DEVIATION = 6.48

THE SAMPLE MINIMUM = 45.97

THE SAMPLE MAXIMUM = 71.15

DATE ANEMOMETER

ELEVATION<FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

06/01/40 35. 59. sw 58.

1 2/03/41 35. 59. s 58.

07/10/42 35. 59. sw 58.

02/28/43 35. 59. N 58.

01/17/44 43. 73. sw 70.

1 0/30/45 43. 57. w 55.

12/15/46 43. 59. NW 56.

08/21/47 43. 65. S 62.

10/05/48 43. 62. w 59.

02/16/49 43. 73. w 70.

0 1/10/50 43. 59. SE 56.

09/25/51 43. 51 . W 49.

02/04/52 43. 56. SW 54.

12/12/53 43. 57. SW 55.

02/24/54 43. 52. w 50.

03/11/55 43. 61 . SW 58.

07/13/56 43. 50. s 48.

07/22/57 43. 57. w 55.

1 1/24/58 43. 56. N 54.

06/12/59 43. 54. W 52.

07/20/60 43. 60. SW 57.

07/05/61 43. 57. W 55.

1 1/19/62 20. 56. sw 61.

04/15/63 20. 42. w 46.

10/01/64 20. 45. w 49.

1 0/05/65 20. 42. w 46.

01/08/66 20. 54. SW 59.

01/15/67 20. 54. w 59.

09/18/68 20. 46. w 50.

02/09/69 20. 45. S 49.

06/27/70 20. 56. w 61 . 03/11/71 20. 43. w 47.

01/11/72 20. 50. NW 55.

06/18/73 20. 44. NW 48.

01/30/74 20. 43. SW 47.

07/03/75 20. 65. SW 71.

06/30/76 20. 45. sw 49.

1 1/26/77 20. 47. NW 51.

153
RETURN PERIOD

(IN YEARSI

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 01 STRIBUTION

ESTIMATED

STAN, DEV.

SAMPU. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3.0

4. 0

5.0

6.0

54.20

57. 02

58.83

60. 16

61.22

.96

1.18

1 .35

1 .48

1.59

.97

1 .23

1 .45

1 .63

1 .77

7.0

8. 0

9.0

10.0

20.0

62. 10

62.86

63. 52

64. 10

67.89

1 .68

1 .76

1 .83

1 .90

2.32

1 .90

2.01

2.11

2.20

2.77

30.0

38. 0

40.0

50. 0

60.0

70. 06

71 .32

71.60

72.78

73. 75

2.57

2. 72

2.75

2. 89

3.00

3.11

3.31

3.36

3. 54

3.70

70.0

80.0

90. 0

100.0

200.0

74.57

75. 27

75.90

76.45

80. 1 1

3. 09

3.18

3. 25

3.32

3.75

3.83

3.94

4.04

4.13

4.71

300.0

400. 0

500.0

600. 0

700 . 0

82.24

83.76

84. 93

85.89

86.70

4. 00

4. 18

4.32

4.44

4.53

5.06

5.30

5.49

5.65

5.78

800. 0

900. 0

1000.0

2000.

3000.0

87.40

88.02

88.53

92.22

94.35

4.62

4.69

4.76

5.20

5.45

5.89

5.99

6.08

6.67

7.02

4000.0

5000.

6000.

7000.0

8000.0

95.86

97. 04

98.00

98. 81

99.51

5.64

5.78

5. 89

5.99

6. 07

7.26

7.46

7.61

7.74

7.86

9000.0

10000.0

50000.0

1 00000.

500000.0

100. 13

100.68

109. 14

1 12. 78

121 .25

6.15

6.22

7.24

7.68

8. 70

7.96

8.05

9.43

10.02

1 1 .40

1 000000.

124.89 9. 14 1 1 .99

15^
MI SSOULA, MONTANA (1945-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 33.00

THE SAMPLE MEAN = 48.26

THE SAMPLE STANDARD DEVIATION = 5.93

THE SAMPLE MINIMUM = 40.50

THE SAMPLE MAXIMUM = 70.91

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

06/21/45 32. 45. S 45.

06/14/46 32. 45. M 45.

02/02/47 32. 42. NW 42.

04/21/48 32. 45. sw 45.

07/11/49 32. 46. NW 46.

04/23/50 32. 51 • NW 51.

03/15/51 33. 47. NW 47.

08/08/52 33. 45. SW 45.

01/09/53 36. 52. S 51.

05/24/54 36. 57. SW 56.

12/26/55 36. 47. NW 46.

08/15/56 36. 58. SW 57.

07/12/57 36. 72. SE 71.

08/25/58 18. 40. SW 45.

06/08/59 18. 42. NW 47.

1 0/06/60 18. 37. W 41 . 11/01/61 18. 42. NW 47.

08/16/62 18. 49. SW 55.

02/04/63 18. 47. NW 53.

02/04/64 18. 45. W 50.

06/06/65 18. 43. NE 48.

05/22/66 20. 40. W 44.

01/15/67 20. 38. SW 42.

07/19/68 20. 37. NW 41 . 01/07/69 20. 42. NW 46.

02/03/70 20. 42. SW 46.

10/26/71 20. 40. SW 44.

03/06/72 20. 50. SW 55,

08/13/73 20. 45. SW 49.

09/26/74 20. 43. N 47.

09/16/75 20. 41 . NW 45.

08/22/76 20. 49. S 54.

06/01/77 20. 43. NW 47.

155
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I- o X a. lu a 157
NORTH PLATTE. NEBRASKA (194.9-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 29.00

THE SAMPLE MEAN = 61.77

THE SAMPLE STANDARD DEVIATION = 6.72

THE SAMPLE MINIMUM = 51.45

THE SAMPLE MAXIMUM = 74.44

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION( FT ) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

03/30/49 48. 65. N 6 1.

03/07/50 46 . 72. N 6 8.

03/28/51 48 . 59 . N 56 . 03/ 12/52 32 . 65. NW 6 5.

05/28/53 32 . 70 . s 7 f> -

\) ^ f iy/o*f OV . IN 3 QV . 05/02/55 32. 70. s 70.

10/29/56 32. 72. sw 72.

05/25/57 32. 66. NW 66.

1 1/04/58 32. 59. NW 59.

10/23/59 32. 59. NW 59.

06/19/60 32. 66. N 66.

04/02/61 32. 54. NW 54.

05/15/62 32. 57. SE 57.

04/15/63 32. 52. NW 52.

06/22/64 32. 65. W 65.

03/17/65 20. 50. NW 55.

03/04/66 20. 61 . NW 67.

06/14/67 20. 51 . NW 56.

12/12/68 20. 48. NW 53.

07/05/69 20. 66. SE 72.

05/12/70 20. 53. W 58.

03/18/71 20. 57. NW 62.

05/01/72 20. 56. NW 61 . 05/27/73 20. 47. NW 51 .

1 1/13/74 20. 48. NW 53.

04/08/75 20. 68. SE 74.

12/28/76 20. 57. NW 62.

03/11/77 20. 59. N 65.

158
RETURN PERIOD

UN YEARS)

2.0

3. 0

4.0

5.0

6.0

7.0

8. 0

9.0

10.0

20.0

29.0

30.0

40.0

50.0

60.0

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DI STRIBUTION

60.75

63.6 8

65.56

66.95

68.05

68.97

69.75

70.44

71 .05

74. ©9

77. 06

77. 25

78.85

80. 08

81.09

ESTIMATED

STAN. DEV.

SAMPU. ERROR

CRAMER- RAO

1 . 14

1.40

1 .60

1 .75

1 .88

1 .99

2.09

2.17

2.25

2.75

3. 02

3.05

3.26

3.42

3. 56

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

1.15

1 .46

1 .72

1 .93

2. 1

2. 26

2.39

2.50

2.61

3.29

3.66

3.70

3.98

4.21

4. 39

70.0

80.0

90. 0

100.0

200. 0

81 . 93

82.67

83.32

63. 90

87.70

3.67

3.77

3. 86

3.93

4.45

4.54

4.68

4.79

4.90

5.60

30 0. 0

400. 0

500.0

600.0

70 0. 0

89.92

91 .50

92.72

93.71

94.56

4.75

4.96

5. 13

5.27

5.38

6.00

6.29

6.52

6.70

6 .86

800.0

90 0.0

1000.0

2000.

3000.

95.29

95. 93

96.51

100.30

102.52

5.48

5.57

5.65

6.17

6.47

6.99

7.11

7.22

7 .92

8.33

4000.0

5000.0

6000.

7000.0

8000.

104.09

105.31

106.31

107. 15

107.88

6.69

6.86

6. 99

7.11

7.21

8.62

8 .85

9. 03

9.19

9.32

9000.0

10000.0

50000.0

1 00000.

500000.

108.52

109. 1

117.90

121.69

130.50

7.30

7.38

8.59

9.11

10.33

9.44

9. 55

11.19

11.89

13.53

000000.0 134.28 10.85 14 .24

159
OMAHA. NEBRASKA (1936-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 42.00

THE SAMPLE MEAN = 55.00

THE SAMPLE STANDARD DEVIATION = 10.67

THE SAMPLE MINIMUM = 42.69

THE SAMPLE MAXIMUM = 104.00

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

07/ 1 Q 36 44 . 10 9. N 104.

44 . 73 . £ 7 0.

08/07/38 44 • 63 . SW 6 0.

1 0/04 /3Q 44 . 59 • s w 56 • 50 • N W A•TO. ft « CO. %j -J % ^ f .

%7 o . 7r <1P _. IN ft S - o o . w O . O IV A Q

Ano o .. IN

ft A • KJIN A<v AO .. A A AO wn A A

OO. ftO c:O . (N t <^O AO .

ft A « AO. C A A .

ftOOA . co *^ "5 3 <3 . Oo/07/oO o8 . r 3 • N W OO . 1 1/03/51 68. 56. NW 50.

08/19/52 68. 59. W 53.

05/10/53 68. 59. SW 53.

04/20/54 68. 54. NW 48.

0 1/28/55 74. 49. NW 44.

07/07/56 74. 57. NW 51.

05/16/57 74. 58. E 52.

07/08/58 74. 54. S 48.

05/20/59 74. 65. W 58.

08/05/60 74. 55. N 49.

04/15/61 74. 50. NW 44.

05/07/62 74. 56. NW 50.

12/08/63 20. 49. NW 54.

05/25/64 20. 63. NW 69.

01/31/65 20. 45. NW 49.

03/23/66 20. 50. N 55.

06/04/67 20. 56. N 61.

05/15/68 20. 65. NW 71.

01/05/69 20. 39. NW 43.

02/02/70 20. 47. NW 51 . 06/18/71 20. 56. NW 61.

01/24/72 20. 47. NW 5 1.

05/09/73 20. 50. N 55.

160
08/16/74 20. 44, NE 48

11/20/75 20, 44. NW 48

04/16/76 20. 58. S 63

Q\/2.1/n 20. 45. NW 49

161
• o o

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^

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01 « o Ni <t (0 in c\i » N « m eg o CO •0 • • • • • • • • • N in * CO CVJ d 0> <o s in > U)

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1-

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163
VALENTINE. NEBRASKA (1956-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 22.00

THE SAMPLE MEAN = 60.57

THE SAMPLE STANDARD DEVIATION = 8.56

THE SAMPLE MINIMUM = 45.70

THE SAMPLE MAXIMUM = 74.14

DATE ANEMOMETER

ELEVATION( FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT 1 OM ABOVE

GROUND (CORRECTED SPEED)

08/10/56 30. 65. NW 66.

1 1/29/57 30. 47. N 48.

1 1/04/58 30. 56. NW 57.

05/25/59 30. 54. NW 55.

1 1/23/60 30. 51 . N 52.

09/28/61 30. 57. S 58.

08/10/62 30. 72. S 73.

06/21/63 30. 65. S 66.

06/08/64 30. 57. sw 58.

01/31/65 30. 45. NW 46.

06/04/66 30. 61 . NW 62.

08/21 /67 30. 56 . SW 57.

06/20/68 30. 68. N 69.

09/12/69 30. 50. S 51 . 07/26/70 30. 46. SW 47.

1 0/18/71 30. 65. SE 66.

01/12/72 30. 64. NW 65.

09/23/73 30. 70. S 71 . 05/19/74 30. 62. SW 63.

06/18/75 30. 73. SE 74.

03/12/76 30. 68. NW 69.

05/18/77 30. 60. SW 6 1.

164
RETURN PERIOD

(IN YEARSI

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DI STRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3.0

4.0

5.0

6.0

59.31

63.03

65.40

67. 16

68.56

1 .67

2.05

2. 34

2.56

2.75

1 .68

2.13

2.51

2.82

3. 08

7.0

8.0

9.0

10.0

20.0

69.72

70.72

71.58

72.36

77.34

2.91

3. 05

3.18

3.29

4.02

3. 30

3.49

3.66

3.81

4.81

22.0

30.0

40.0

50.0

60.0

78.02

80.21

82.23

83. 79

85.06

4.13

4.46

4.77

5.01

5-20

4.95

5.40

5.82

6.15

6.41

70.0

80.0

90.0

100.0

200.0

86. 14

87.07

87. 8«

88.62

93.44

5.37

5.51

5.64

5. 75

6.50

6.64

6.84

7.01

7. 16

8. 13

30 0.0

400. 0

500.0

600.0

700.0

96.25

98.25

99.79

101.06

102. 13

6.94

7.26

7.50

7.70

7.87

8.78

9.20

9.53

9. 80

10 .03

800.0

900.0

1000.

2000.0

3000.

103.05

103.87

104.60

109.40

112.21

8.01

8.14

8.26

9.02

9.46

10.22

10.40

10 . 55

1 1 .58

12.13

4000.0

5000.

6000.0

7000.0

8000.0

114. 20

1 15.74

117.01

1 18.07

1 19.00

9.78

10.02

10.22

10.39

10.54

12. 60

12.93

13.20

13.43

13.63

9000.0

10000.0

50000.0

100000.

500000.0

119.81

120.54

131 . 69

136.48

147.64

1 0.67

1 0. 78

12.56

13.32

15.10

13.81

13.96

16 .35

17.38

19.78

1000000.0 152.44 15. 86 20.81

165
in pj

10 (\J -1 in o

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166
ELY.NEVADA (1939-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = THE SAMPLE MEAN = THE SAMPLE STANDARD DEVIATION = THE SAMPLE MINIMUM = THE SAMPLE MAXIMUM =

DATE ANEMOMETER FASTEST MILE WIND SPEED

ELEVATION(FT) AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATIONJ

06/04/39 46. 59. S

03/27/40 46. 50. NW

02/11/41 46. 50. S

08/04/42 46. 52. W 03/29/43 46. 61 . S

06/08/44 46. 59. S

05/22/45 46. 56. s 10/01/46 46. 51 . s 10/12/47 46. 54. NW

05/18/48 46. 74. s 09/25/49 46. 54. s 10/27/50 46. 65. s 05/26/51 46. 60. sw

0 1/14/52 46. 66. SE

09/21/53 46. 57. s 08/30/54 46. 57. E 01/01/55 46. 56. s 01/07/56 46. 50 . SE

09/05/57 46. 54. S

06/06/58 46 . 45. SE

05/01/59 46. 69. S

04/22/60 46. 57. S

05/31/61 46. 54. SE

05/19/62 20. 47. S

03/27/63 20. 57. S

01/21 /64 20. 49. SW

05/21/65 20. 48. S

08/29/66 20. 38. SE

12/18/67 20. 45. SE

08/20/68 20. 40. S

0 1/26/69 20. 54. sw 04/13/70 20. 48. SW

12/21/71 20. 43. SE

08/18/72 20. 41. SE

1 1/12/73 20. 50. SW

06/19/74 20. 47. SE

06/24/75 20. 54. SE

06/30/76 20 . 42. S

39.00

52.88

6.23

41-60

70.13

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

56.

47.

47.

49.

58.

56.

53.

48.

51 . 70.

5 1 . 62.

57.

63.

54.

54.

53.

47.

51 • 43.

65.

54.

5 1 . 51 . 62.

54.

53.

42.

49.

44.

59.

53.

47.

45.

55.

51 . 59.

46 .

167
1 1/05/77 20. 47. SE 51

168
RETURN PERIOD

<IN YEARS)

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

20. 0

30.0

39. 0

40.0

50.0

60.0

70.0

80.0

90.0

100.0

200. 0

300.0

400.0

500. 0

600. 0

700. 0

800.0

900. 0

1000.0

2000.

3000.

4000.0

5000.0

6000.0

7000.0

8000.

9000.C

10000.0

50000.0

100000.0

500000.

1 000000.0

PREDICTED EXTREME W

BASED ON

EXTREME VALUE TYPE

DI STRI BUTION

51 .91

54.64

56 . 39

57.69

58.72

59.57

60.31

60.95

61.52

65. 19

67.30

68.66

68.79

69.94

70.88

71 .67

72.36

72.96

73.50

77. 05

79. 12

80.59

81 .73

82.66

83.45

84. 13

84.73

85.27

88.80

90. 87

92.34

93.48

94.41

95.20

95.88

96.48

97. 02

105.22

108.76

1 16.98

120.51

NO ESTIMATED

STAN. DEV.

1 SAMPL. ERROR

CRAMER-RAO

.91

1.12

1 .28

1 .40

1.51

1.59

1 .67

1 .74

1.80

2.20

2.44

2.59

2.60

2.74

2.84

2.93

3.01

3.08

3.14

3.55

3.80

3.97

4.10

4.21

4.30

4.38

4.45

4.51

4.93

5. 17

5.34

5.48

5. 59

5.68

5.76

5.83

5.89

6.86

7.28

8.25

8.67

EST! MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

.92

1 . 16

1 .37

1 . 54

1 .68

1 .80

1.91

2. 00

2.08

2.63

2.95

3. 16

3.18

3.36

3.51

3.63

3.74

3.83

3.91

4.47

4.80

5.03

5.21

5.36

5.48

5.59

5.68

5.77

6.33

6.66

6.89

7.07

7.22

7.34

7.45

7.55

7.63

8.94

9.50

10.81

1 1 .37

169
0>

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CM ^ in s CO o n in

J • t t • t • • t UJ a o N •* (0 in n o •* D s >0 in in in in <t i J >

170
LAS VEGAS. NEVADA (1965-1977)

THE SAMPLE NUMBER CF OBSERVATIONS = 13.00

THE SAMPLE MEAN = 54.65

THE SAMPLE STANDARD DEVIATION = 7.00

THE SAMPLE MINIMUM = 43.79

THE SAMPLE MAXIMUM = 70.06

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

02/22/65 20. 54. NW 59.

03/01/66 20. 52. SW 57.

08/08/67 20. 48. NW 53.

05/21/68 20. 40. SW 44.

04/18/69 20. 45. N 49.

12/02/70 20. 50. SW 55.

07/14/71 20. 64. SW 70.

07/16/72 20. 48. NE 53.

04/17/73 20. 44. NW 48.

03/02/74 20. 50. S« 55.

03/16/75 20. 45. N 49.

07/29/76 20. 59. NE 65.

05/05/77 20. 50. SW 55.

171
a.

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172
RENQ^NEVADA C1942-1977J

THE SAMPLE NUMBER OF OBSERVATIONS = 36.00

THE SAMPLE MEAN = 56.54

THE SAMPLE STANDARD DEVIATION = 7.95

THE SAMPLE MINIMUM = 42.82

THE SAMPLE MAXIMUM = 76.62

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

11/14/42 46. 56. SW 53.

0 1/21/43 52. 58. sw 54.

03/03/44 52. 54. s 50.

12/04/45 52. 72. s 67.

1 1/22/46 52. 52. 5 48 .

1 0/20/47 52. 66. s 6 1.

03/23/48 52. 61 • s 57 . 03/19/49 52. 61 . s 57.

1 0/29/50 52. 56. s 52.

03/05/5

52. 68. s 63.

1 2/05/52 52. 61 • sw 57.

03/10/53 52. 49. sw 46 . 01/17/54 52. 66. sw 61.

04/25/55 52. 65. s 61.

01/04/56 52. 59. s 55.

04/14/57 52. 56. s 52.

01/12/58 52. 72. s 67.

03/30/59 52. 46. s 43.

02/08/60 20. 54. w 59.

03/14/61 20. 51. sw 56.

10/ 13/62 20. 50. s 55.

03/29/63 20. 49* s 54.

01/01/64 20. 47. w 5 1.

12/28/65 20. 45. sw 49.

01/04/66 20. 48. SE 53.

01/20/67 20. 70. SE 77.

03/12/68 20. 66. SW 72.

01/12/69 20. 59. sw 65.

02/16/70 20. 43. sw 47.

03/25/71 20. 49. sw 54.

04/12/72 20. 45. s 49.

12/29/73 20. 46. NW 50.

02/28/74 20. 60 . sw 66.

02/12/75 20. 66. sw 72.

03/24/76 20. 49. w 54.

12/15/77 20. 45. sw 49.

175
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6.0

55.30

58.80

61 . 04

62.70

64. 02

1 .21

1 .49

1 .70

1.86

2.00

1 . 22

1.55

1 .82

2.05

2.24

7.0

8.0

9.0

10. 0

20.0

65. 12

66.06

66.87

67.60

72.30

2.12

2.22

2.31

2.39

2.92

2.40

2.53

2.66

2.77

3.50

30.0

36.0

40. 0

50.0

60.0

75.01

76.22

76.91

78.39

79.59

3.24

3.38

3.46

3.63

3.78

3.92

4.12

4.23

4 .46

4.66

70.0

80.0

90.0

100.0

200.0

80.60

81 .48

82.26

82.95

87.49

3.90

4.00

4.09

4.18

4.72

4.82

4.96

5.09

5.20

5.94

300.0

400.0

500.0

600. 0

700. 0

90. 14

92.02

93.48

94.68

95.68

5.04

5.27

5.45

5.59

5.71

6.37

6.68

6.92

7.12

7.28

800.0

900.0

1 000.

2000.0

3000.0

96.56

97.32

98. 01

102.54

105. 19

5.82

5.91

6. 00

6.55

6. 87

7.42

7.55

7.66

8 .41

8.84

4000.0

5000.

6000.0

7000.0

8000.0

107.07

108.53

109.72

1 10.72

111.60

7. 10

7.28

7.42

7.55

7.65

9. 15

9.39

9.59

9.76

9.90

9000.0

10000.0

50000.0

1 00000.

500000.0

112.37

113.05

123.56

128.09

138.61

7.75

7.83

9. 12

9.67

10.97

10.03

10 . 14

1 1 .88

12.62

14.36

1 000000.

143.14 1 1.52 15.11

174
WI NNEMUCCA, NEVADA (1950-19771

THE SAMPLE NUMBER OF OBSERVATIONS = 28.00

THE SAMPLE MEAN = 50.22

THE SAMPLE STANDARD DEVIATION = 7.13

THE SAMPLE MINIMUM = 37.22

THE SAMPLE MAXIMUM = 62.63

DATE ANEMOMETER

ELEVATION(FTI

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

03/05/50 34 . 63. W 63 . 05/20/5

34. 61 • N 6 1.

1 2/07/52 34 . 60. SW 6 0.

03/ 19/53 34 • 50 . sw 5 0.

07/26/54 34. 47. w 47.

12/23/55 34. 61. sw 61 . 01/07/56 34. 56. w 56.

07/28/57 34. 56. w 56.

02/24/58 34. 56. sw 56.

07/12/59 34. 40. E 40.

05/12/60 34. 57. w 57.

05/01/61 34. 47. w 47.

04/19/62 20. 43. w 47.

06/09/63 34. 57. w 57.

12/23/64 34. 52. w 52.

12/28/65 34. 47. sw 47.

10/20/66 20. 38. sw 42.

12/04/67 20. 38. sw 42.

09/28/68 20. 38. sw 42.

01/26/69 20. 42. sw 46 . 02/17/70 20. 51 • w 56.

12/03/71 20. 42. sw 46.

06/22/72 20. 34. sw 37.

12/11/73 20. 47. sw 51 . 03/01/74 20. 50. sw 55.

1 1/10/75 20. 37. sw 4 1 . 03/24/76 20. 44. sw 48.

03/27/77 20. 45. NW 49.

175
RETURN PERIOD

(IN YEARS)

2.0

3.0

4.0

5.0

6. 0

7.0

8. 0

9.0

1 0.0

20.0

28.0

30.0

40.0

50.0

60.0

70.0

80.0

90.0

100.0

200. 0

30 0.0

400. 0

500. 0

600. 0

700. 0

800.0

900.0

1 000.

2000.

3000.

4000.0

5000.

6000.0

7000.0

8000.0

9 00 0.0

1 0000.

50000.0

100000.0

500000.0

1000000.0

PREDICTED EXTREME W BASED ON

EXTREME VALUE TYPE

DI STRIBUTION

49. 16

52.23

54. 19

55.65

56.80

57.76

58.58

59.30

59.94

£>4. 06

66.03

66.43

68. 10

69.39

70.45

7 1 . 33

72.10

72.78

73. 39

77.37

79.70

81.34

82.62

83.67

84.55

85.31

85.99

86.59

90.56

92.88

94.53

95.81

96.85

97.73

98.50

99. 17

99.77

108.99

112.95

122. 17

126. 14

ND ESTIMATED

STAN. DEV.

1 SAMPL. ERROR

CRAMER-RAO

1 .23

1 .51

1 .72

1.89

2. 03

2.15

2.26

2.35

2.43

2.97

3.24

3.29

3.52

3.70

3. 84

3.96

4.07

4.16

4.25

4.80

5. 13

5. 36

5.54

5.68

5.81

5. 92

6.01

6.10

6.66

6.99

7.22

7.40

7.55

7.67

7.78

7.88

7.96

9.27

9. 84

11.15

1 1 .71

ESTIMATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

1 . 24

1 .57

1 .85

2.08

2. 27

2.44

2.58

2.70

2.81

3.55

3.92

3.99

4.30

4.54

4.74

4.90

5.05

5.17

5.29

6. 04

6.48

6.79

7.04

7.23

7.40

7.55

7.68

7.79

8.55

8.99

9.31

9 . 55

9.75

9. 92

10.06

10.19

10. 31

12.07

12.83

14.60

15.37

176
CONCORD. NEW HAMPSHIRE (1941-19771

THE SAMPLE NUMBER OF OBSERVATIONS = THE SAMPLE MEAN = THE SAMPLE STANDARD DEVIATION =

THE SAMPLE MINIMUM = THE SAMPLE MAXIMUM =

DATE ANEMOMETER FASTEST MILE WIND SPEED

ELEVATION(FT) AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

10/23/41 45a 37. MM

03/03/42 45 • 40 . NE

1 2/ 1 1 /43 45 • 47. W 03/29/44 45 • 62. N W 45» 52 . NW

O 1 Aft 4 1. N W

•T ^ # A6i _ NF

A'^i •r *^ -• A ? « 45 • 37 . W

45 • 72 . NE

OA /Pft '^ 1 AS • AO. W AS . MF

1 1 AS . A . MFINC UOX OxXO*r fO • DO . F 08/05/55 45. 35. NW

09/14/56 45. 42. SW

06/29/57 45. 38. SW

03/21/58 45. 39. NE

01/06/59 45. 39. NW

09/12/60 45. 42. E

1 1/25/61 45. 33. NW

12/30/62 20. 52. NW

04/22/63 20. 44. NW

12/01/64 20. 32. NW

11/04/65 20. 38. W 03/02/66 20. 38. W

02/16/67 20. 36. W 08/25/68 20. 52. SW

01/01/69 20. 37. NW

01/15/70 20. 42. NW

07/01/71 20. 45. SW

01/19/72 20. 44. NW

01/29/73 20. 32. NW

03/10/74 20. 49. NW

01/30/75 20. 40 . NW

05/03/76 20. 36. W

04/03/77 20. 33. W

37.00

42.85

8.35

31 .38

68.46

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

35.

38.

45.

59.

49.

39.

44.

40.

35.

68.

38.

34.

4 1.

53.

33.

40.

36.

37.

37.

40.

31 . 57.

48.

35.

42.

42.

39.

57.

4 1.

46.

49.

48.

35.

54.

44.

39.

36.

177
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178
ALBUQUERQUE, NEW MEXICO (1933-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 45.00

THE SAMPLE MEAN = 57.18

THE SAMPLE STANDARD DEVIATION = 7.76

THE SAMPLE MINIMUM = 44.72

THE SAMPLE MAXIMUM = 84.76

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION<FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

05/22/33 39. 61. W 59.

03/04/34 39. 50. NW 49.

05/03/35 39. 52. E 5 1.

12/17/36 39. 54. NW 52.

03/18/37 39. 59. W 57.

06/06/38 39. 54. NW 52.

03/05/39 39. 46. W 45.

05/08/40 48. 57. SE 54.

03/09/41 48. 52. NW 49.

04/29/42 48. 68. S 64.

12/09/43 48. 90. SE 85.

02/09/44 48. 68. NW 64.

07/01/45 48. 68. E 64.

06/20/46 48. 82. SE 77.

05/23/47 48. 52. N 49 .

1 1/17/48 48. 57. NW 54.

01/16/49 48. 61. E 57.

05/04/50 48. 72. W 68.

08/15/51 48. 61. SE 57.

04/29/52 48. 54. S 5 1.

05/28/53 48. 57. S 54.

03/17/54 48. 52. S 49.

04/12/55 48. 54. NW 51 . 02/24/56 48. 65. W 6 1.

04/07/57 48. 50. W 47.

09/27/58 48. 57. SE 54.

10/31/59 48. 66. N 62.

12/06/60 23. 66. E 70.

07/20/61 23, 54. NW 58.

09/01/62 23. 49. SW 52.

05/01/63 23. 49. NW 52.

03/22/64 23. 52. SW 55.

04/10/65 23. 56. SW 60.

06/20/66 23. 54. SW 58.

12/13/67 23. 57. E 6 1.

07/02/68 23. 54. E 58.

03/01/69 23. 50. NW 53.

08/08/70 23. 54. NW 58.

179
10/29/71 23. 58. S 62.

03/18/72 23. 61. E 65.

04/18/73 23. 54. NW 58.

07/04/74 23. 54. E 58.

02/22/75 23. 56. E 60.

04/30/76 23. 46. E 49.

02/22/77 23. 49. NW 52.

180
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182
RQSWELL.NEW MEXICO (1947-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 31.00

THE SAMPLE MEAN = 58.21

THE SAMPLE STANDARD DEVIATION = 8.93

THE SAMPLE MINIMUM = 40.24

THE SAMPLE MAXIMUM = 81.60

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FTJ AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)'

07/10/47 29. 50. W 5 1.

02/27/48 29. 61 • W 62 . 03/20/49 29. 65. w 66 . 07/15/50 45 . 59. N 56 . 04/29/5

45. 6 1. SW 58 • 02/02/52 53. 65. NW 6 0.

0 4 / 29 / 5 3 53. 75. .W 7 0.

02/10/54 53. 61 • NW 57.

04/23/55 53. 73. W 68.

03/06/56 53. 65. SM 60.

05/31/57 53. 72. N 67.

04/04/58 53. 69. W 64.

02/09/59 53. 68. W 63.

02/09/60 53. 70. NW 65.

04/11/61 18. 45. W 50.

03/23/62 18. 50. NW 56.

06/18/63 18. 59. SW 66.

01/19/64 18. 43. w 48.

01/25/65 18. 42. SW 47.

03/22/66 18. 48. NW 54.

02/09/67 18. 45. NW 50.

02/22/68 18. 41 . NW 46.

01/22/69 18. 36. SW 40.

12/15/70 18. 50. NW 56.

03/05/71 18. 47. SW 53.

07/20/72 18. 63. E 70.

03/13/73 18. 52. NW 58.

04/02/74 18. 46. NW 5 1.

06/23/75 18. 73. NW 82.

04/30/76 18. 42. NE 47.

05/31/77 18. 56. NW 63.

183
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6.0

56. 83

60.75

63.25

65* 10

66.58

1 .47

1 .80

2. 05

2.26

2.42

1 .47

1 .87

2.21

2.48

2.71

7. 0

8. 0

9.0

10.0

20. 0

67.80

68.85

69.77

70.58

75. 83

2.56

2.69

2.80

2.89

3.54

2.90

3.07

3.22

3.35

4.23

30.0

31.0

40.0

50. 0

60. 0

78.86

79. 10

80.99

82. 63

83.98

3. 92

3.95

4.19

4.40

4.57

4,75

4.79

5.12

5.41

5.64

70.0

80.0

90. 0

100.0

200.0

85. 1 1 86. 09

86.95

87.73

92.80

4. 72

4.85

4. 96

5.06

5. 72

5.84

6.01

6.16

6.30

7.19

300. 0

400. 0

500.0

600.0

700. 0

95.77

97.87

99.50

100.83

101.96

6.11

6.38

6.60

6.77

6.92

7.72

8.09

8.38

8.62

8. 82

800. 0

900. 0

1000.0

2000.

3000.0

102.93

103.79

104.56

109. 62

1 12.58

7. 05

7. 16

7.26

7.93

8.32

8.99

9.14

9.28

10. 18

10.71

4000.0

5000.0

6000.

7000.

8000.0

1 14.68

1 16.31

1 17.64

1 18.77

1 19.74

8.60

8.81

8.99

9.14

9.27

I 1 .08

I I .37

11.61

11.81

1 1 .99

9000.0

10000.

50000.

100000.0

500000.

120.60

121.37

133. 1

138. 17

149.93

9.38

9.48

11.04

1 1 .71

13.28

12. 14

12.28

14.38

15.29

17.39

1000000.0 154.9 8 13. 95 18.30

18^1
ALBANy.NEW YORK (1938-1977). REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS - 40.00

THE SAMPLE MEAN = 47.89

THE SAMPLE STANDARD DEVIATION = 6.69

THE SAMPLE MINIMUM = 38.31

THE SAMPLE MAXIMUM = 68.48

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION( FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

09/21/38 40. 46. W 45.

01/25/39 40. 50. NW 48.

04/05/40 40. 42. NM 41.

03/19/41 40. 55. W 53.

03/19/42 40. 45. W 44.

04/05/43 40. 47. w 46.

12/28/44 40. 54. w 52.

04/05/45 40. 47. sw 46.

0 1/19/46 40. 50. M 48.

01/21/47 40. 45. w 44.

02/14/48 40. 43. w 42.

01/19/49 40. 42. w 41 •

1 1/25/50 41 . 70. E 68.

01/21/51 41 . 52. NW 50.

01/18/52 41 . 57. W 55.

02/15/53 41 . 71. NW 68.

04/08/54 41 . 49. W 47.

03/27/55 41. 45. w 43.

02/25/56 41. 43. NW 4 1 . 01/23/57 41. 49. w 47.

02/25/58 41 • 42. w 41 . 02/19/59 41 . 57. w 55.

02/20/60 41 . 46. w 44.

09/02/61 41 . 48. s 46.

04/25/62 41 . 41 . NW 40.

04/04/63 20. 45. w 49.

01/10/64 20. 42. w 46.

10/31/65 20. 40. NW 44.

06/06/66 20. 44. NW 48.

02/16/67 20. 45. NW 49.

02/17/68 20. 43. W 47.

01/08/69 20. 42. W 46.

04/03/70 20. 42. W 46.

06/08/71 20. 57. NW 62.

02/20/72 20. 42. NW 46 . 0 1/29/73 20. 35. NW 38.

03/10/74 20. 47. NW 51 . 01/30/75 20. 45. NW 49.

185
12/13/76 20. 48. NW 53

04/08/77 20. 42. NW 46

186
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188
BI NGHAMPTON.NEW YORK (1951-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 27.00

THE SAMPLE MEAN = 49.22

THE SAMPLE STANDARD DEVIATION = 6.40

THE SAMPLE MINIMUM = 38.69

THE SAMPLE MAXIMUM = 63.78

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT 1 OM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

11/07/51 76. 57. SE 50.

03/11/52 76. 54. NW 48.

12/10/53 76. 53. W 47.

10/15/54 76. 72. S 64.

10/24/55 76. 66. W 58.

02/25/56 76. 66. NW 58.

06/13/57 76. 60. NW 53.

08/14/58 76. 57. N 50.

01/05/59 76. 59. NW 52.

01/05/60 76. 56. W 50.

04/16/61 22. 40. E 43.

02/14/62 22. 50. SE 54.

04/04/63 22. 42. W 45.

03/05/64 22. 47. SW 5 1.

04/12/65 22. 42. w 45.

01/31/66 22. 47. w 51 . 06/15/67 22. 45. NM 48.

12/05/68 22. 52. W 56.

03/24/69 22. 38. SE 41.

04/02/70 22. 39. w 42.

01/26/71 22. 56. SW 60.

01/25/72 22. 41 . w 44.

03/17/73 22. 41 . s 44.

02/23/74 22. 41 . w 44.

01/29/75 22. 38. w 41.

10/13/76 22. 36. NW 39.

08/05/77 22. 47. w 51 .

189
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER- RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6.0

48.24

51.08

52.91

54.26

55.33

1 . 13

1 .38

1 .58

1 .73

1 .86

1.13

1 .44

1 .70

1.91

2.08

7.0

8.0

9.0

10.0

20.0

56.22

56.98

57.65

58.24

62. 06

1 .97

2. 06

2. 15

2.22

2.72

2.23

2.36

2.47

2.57

3.25

27. 0

30. 0

40,0

50.0

60. 0

63.69

64.26

65.81

67. 01

67.99

2.93

3.01

3.22

3.38

3.51

3.55

3.65

3.93

4.15

4.33

70.0

80.0

90. 0

100.0

200.0

68.82

69.53

70. 16

70.72

74.42

3.63

3.72

3.81

3.89

4.39

4.48

4.62

4.73

4.84

5.52

300.0

400.0

500.0

600« 0

700. 0

76.57

78. 1 1 79.29

80,26

81.08

4.69

4. 90

5.07

5.20

5.31

5.93

6.21

6 .44

6.62

6 .77

800.0

900.0

1 000.

2000.

300 0. 0

81 .79

62.42

82.98

86.66

88.81

5.41

5.50

5.58

6. 09

6. 39

6.90

7.02

7. 13

7.82

8.22

4000.0

5000.

6000.0

7000.

8000.0

90.34

91 .53

92.50

93.31

94. 02

6.60

6.77

6.90

7. 02

7. 12

8.51

8.74

8.92

9.07

9.21

9000.

10000.

50000.0

100000.

500000.

94,65

95.21

103.76

107.44

116.00

7.20

7.28

8.48

9.00

10.20

9.32

9.43

11 .04

11 .74

13.36

1 000000.

119.68 10.71 14 .05

190
BUFFALO. NEW YORK (1944-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 34.00

THE SAMPLE MEAN = 53.87

THE SAMPLE STANDARD DEVIATION = 7.07

THE SAMPLE MINIMUM = 41.60

THE SAMPLE MAXIMUM = 78.58

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

02/05/44 96. 57. SW 49.

05/22/45 96 . 62. SW 54.

02/14/46 96. 70. SW 6 0.

12/17/47 96. 57. SW 49.

03/16/48 96. 66. SW 57.

0 1/19/49 96. 59. SW 51.

0 1/14/50 96 . 91 . SW 79.

03/24/596. 66. SW 57.

0 1/15/52 96. 52. SW 45 • 02/21/53 96. 69. SW 60.

10/15/54 96. 63. SW 54.

1 1/16/55 96. 64. SW 55.

03/11/56 96. 57. SW 49.

04/25/57 96. 67. w 58.

10/10/58 96. 59. SW 5 1.

03/07/59 96. 68. w 59.

01/08/60 20. 47. SW 51 . 02/19/61 20. 43. SW 47.

01/07/62 20. 42. SW 46.

03/06/63 20. 52. SW 57.

03/05/64 20. 52. SW 57.

01/07/65 20. 47. SW 51 . 11/03/66 20. 43. SW 47.

02/16/67 20. 62. SW 68.

02/16/68 20. 57. SW 62.

05/09/69 20. 44. SW 48.

09/26/70 20. 41 . SW 45.

03/15/71 20. 52. SW 57.

01/17/72 20. 48. SW 53.

12/06/73 20. 38. w 42.

04/ 15/74 20. 48. w 53.

02/26/75 20. 47. SW 51 . 03/27/76 20. 50. SW 55.

01/28/77 20. 50. SW 55.

191
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192
NEW YORK LA GUARDIA, N.Y. (1947-1977) CAUTION SEE APPENDIX 1

THE SAMPLE NUMBER OF OBSERVATIONS = THE SAMPLE MEAN = THE SAMPLE STANDARD DEVIATION = THE SAMPLE MINIMUM = THE SAMPLE MAXIMUM =

DATE ANEMOMETER FASTEST MILE WIND SPEED

ELEVATION(FT) AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

03/25/47 83. 63. SW

10/06/48 83. 66. NE

1 2/29/49 83. 56. NW

1 1/25/50 83. 68. SE

02/08/51 83. 59. NW

11/22/52 83. 59. E

1 1 /07/53 83. 68. N

10/15/54 83. 66. SE

01/07/55 83. 56. M

01/07/56 83. 64. N

01/23/57 83. 56. NW

0 1/14/58 83. 68. NE

01/05/59 83. 63. NW

09/12/60 83. 70. NE

04/13/61 83. 59. NE

12/31/62 81 . 54. NW

04/04/63 81 . 59. W 01/13/64 81. 59. NE

02/25/65 81 . 37. S

01/31/6 6 81. 51. W

04/03/67 81 . 48. NW

1 1/12/68 81 . 67. NE

07/03/69 81 . 52. N

12/17/70 81 . 47. E

1 1/25/71 81. 56. NE

11/08/72 81. 57. NE

10/29/73 81 . 40. NE

12/02/74 81 . 55. NE

01/30/75 81 . 45. W 08/09/76 81 . 52. NE

12/05/77 81 . 54. NE

31.00

50.25

7.23

32.54

61 .39

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

55.

58.

49.

60.

52.

52.

60.

58.

49.

56.

49.

60.

55.

6 1 . 52.

47.

52.

52.

33.

45.

42.

59.

46.

41 • 49.

50.

35.

48.

40.

46.

47.

193
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DI STRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6.0

49.20

52.20

54. 12

55.54

56.6 8

1.19

1 .46

1 .66

1 .83

1 . 96

1.19

1 .52

1 .79

2.01

2. 19

7.0

8.0

9.0

10.0

20.0

57.62

58.42

59. 12

59.75

63.78

2. 08

2.18

2.26

2.34

2.87

2.35

2.48

2.61

2.71

3.43

30.0

31.0

40.0

50. 0

60.0

66. 09

66.28

67.73

68.99

70. 02

3. 17

3.20

3.39

3.56

3.70

3.85

3.88

4.15

4.38

4.57

70. 0

80. 0

90.0

100.0

200.0

70.89

71.65

72.31

72. 90

76. 80

3. 82

3.92

4.01

4.10

4.63

4.73

4.87

4.99

5.10

5.82

300.0

400.0

500. 0

600. 0

70 0.0

79. 07

80.69

81.94

82.96

83.82

4. 94

5.17

5.34

5.48

5.60

6.25

6.55

6.78

6.98

7. 14

800.0

900. 0

1000.0

2000.0

3000,0

84.57

85.23

85.82

89.70

91.97

5.71

5.80

5.88

6.42

6.74

7.28

7.40

7.51

8.24

8.67

4000.

500 0.0

6000.0

7000.0

8000.0

93.59

94. 84

95.86

96.72

97.47

6.96

7. 13

7.28

7.40

7. 50

8.97

9.21

9.40

9.56

9.70

9000.0

10000.0

50000.0

100000.0

500000.

98. 13

98.72

107.73

111.61

1 20.63

7.59

7.68

8.94

9.48

10.75

9.83

9.94

1 1 .64

12. 38

14.08

1 000000.0 124. 51 1 1 .30 14.82

19^
ROCHESTER, N.Y. (1941-1977), REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 37.00

THE SAMPLE MEAN = 53.38

THE SAMPLE STANDARD DEVIATION = 5.27

THE SAMPLE MINIMUM = 44.82

THE SAMPLE MAXIMUM = 65.43

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

OV • 04 .

Ulw A Q W y . OV a oy . Do.

AO /A^ /A

OV « D U • W AK yAc oy . W 3 1.

AOyiA SJ £./ y A ^ 1 oy • oo . W 59.

A C OO A OV . O 1 . W

c a o b . 69 . 57. S W 51.

69 . 61. S w 5 5.

Al ^ \ /a ^CLC\ OV « 73 . w o o « U 1 XiC 1 / D 1 69. 57. w 5 1.

0 1 X lo/^o2 69 . 54 . w 4 8.

69 . 65 . w 5 8.

03/03/54 60. 62. w 57 . 03/23/55 60. 60. w 55.

02/25/56 60. 66. w 60.

06/29/57 60. 54. sw 49.

06/25/58 60. 57. w 52.

01/22/59 60. 66. sw 60.

04/18/60 60. 56. w 51 . 04/26/61 60. 51 . w 47.

05/24/62 60. 54. sw 49.

09/12/63 20. 49. w 54.

05/09/64 20. 56. sw 61 . 10/31/65 20. 49. w 54.

01/31/66 20. 50. sw 55.

02/16/67 20. 57. sw 62.

02/22/68 20. 42. sw 46.

06/27/69 20. 44. sw 48.

03/26/70 20. 42. sw 46.

12/11/71 20. 48. sw 53.

01/25/72 20. 50. sw 55.

06/06/73 20. 56. sw 6 1 . 01/27/74 20. 45. sw 49.

04/19/75 20. 56. sw 61 • 02/19/76 20. 46. sw 50.

03/30/77 20. 46. w 50.

195
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 OI STRIBUTION

ESTI MATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6.0

52.56

54.86

56.33

57.42

58.28

.79

.97

1.11

1 .22

1 .31

• 80

1.01

1.19

1 .34

1 .46

7. 0

8.0

9.0

10.0

20. 0

59. 00

59.62

60. 15

60.63

63.72

1 . 38

1 .45

1.51

1 .56

1 .91

1 .57

1 .66

1.74

1 .81

2.29

30.0

37. 0

40. 0

50.0

60, 0

65.49

66.40

66. 74

67. 71

68.50

2. 12

2.22

2.26

2.38

2.47

2. 57

2.71

2.77

2.92

3.05

70.0

80.0

90.0

100.0

200.0

69. 16

69. 74

70.25

70.70

73.68

2.55

2.62

2.68

2.73

3.09

3.15

3.25

3.33

3.40

3.89

30 0. 0

400. 0

500. 0

600.0

700. 0

75.42

76. 66

77.61

78.4 0

79. 06

3.30

3.45

3.56

3.66

3. 74

4.17

4.37

4. 53

4 .65

4.76

800. 0

900.0

1000.0

2000.0

3000.

79.63

80. 13

80.59

83.56

85. 29

3.81

3.87

3.92

4.28

4.49

4.66

4 .94

5.01

5.50

5.79

4000.0

5000.

6000.0

7000.

8000.

86.53

87.48

88.27

88.93

89.50

4.64

4. 76

4.86

4. 94

5. 01

5.99

6.14

6.27

6.38

6.48

9000.0

10000.0

50000.

100000.

500000.

90.00

90.45

97.35

100.32

107.22

5.07

5.12

5.97

6.33

7.17

6.56

6.63

7.77

8.26

9.40

1 000000.0 110.19 7. 54 9.89

196
SYRACUSE, NEW YORK (1941-1977). REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = THE SAMPLE MEAN = THE SAMPLE STANDARD DEVIATION = THE SAMPLE MINIMUM = THE SAMPLE MAXIMUM =

DATE ANEMOMETER FASTEST MILE WIND SPEED

ELEVATION(FT) AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

07/28/4-1 51 . 52. NW

06/19/42 57. 59. NW

12/11/43 57. 56. W 03/07/44 57. 49. s 03/31/45 57. 59. SW

1 1 /22/46 57. 56. w 03/25/47 57. 59. SW

04/11/48 57. 54. 5

02/17/49 57. 61 . w

1 1/25/50 72. 59. E

07/19/51 72. 47. NW

1 1/26/52 72. 47. S

12/10/53 72. 47. NW

10/15/54 72. 63. SE

1 1/16/55 72. 54. W 02/25/56 72. 57. W 04/07/57 72. 52. NW

02/25/58 72. 50. W 03/07/59 72. 50. W 01/02/60 72. 43. S

06/10/61 72. 49. NW

10/23/62 72. 54. W

04/04/63 21. 47. NW

01/25/64 21 . 52. S

10/31/65 21. 49. w 01/31/66 21 . 55. w 02/16/67 21. 62. w 03/24/68 21 . 43. w 06/30/69 21 . 47. w 03/26/70 21 . 43. w 01/30/71 21 . 47. w 01/25/72 21 . 49. w 10/14/73 21 • 45. w 01/27/74 21 . 60. w 02/26/75 21 . 43. SW

04/21/76 21. 48. w 01/11/77 21 . 44. w

37.00

50.27

6.10

38.34

67.23

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

49.

54.

51.

45.

54.

51 • 54.

50.

56.

53.

42.

42.

42.

56.

48.

51.

46.

45.

45.

38.

44.

48.

51 . 56.

53.

60.

67.

47.

51.

47.

51 . 53.

49.

65.

47.

52.

48.

197
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3. 0

4. 0

5.0

6.0

49.32

51 .99

53.7 0

54. 96

55.97

.92

1. 13

1.28

1 .41

1.51

.92

1.17

I .38

1 .55

1 .69

7.0

8. 0

9.0

10. 0

20.0

56.81

57.52

58. 15

58.70

62.29

1.60

1 .68

1 .75

1.81

2.21

1.81

1 .92

2.01

2.09

2.65

30.0

37.0

40.0

50.0

60.0

64.35

65.41

65.81

66.93

67.85

2.45

2.57

2.62

2.75

2.86

2.97

3.14

3.20

3.38

3.53

70. 0

80. 0

90.0

100.0

200. 0

68.62

69.29

69.88

70.41

73. 87

2.95

3.03

3. 10

3. 16

3.57

3.65

3.76

3.85

3.94

4.50

300.0

400.0

500.0

600. 0

700.0

75.90

77.33

78.45

79.36

80. 13

3.82

3.99

4. 12

4.23

4.32

4.82

5.06

5.24

5.39

5.51

800. 0

90 0.0

1 000.0

2000.0

3000.0

80.79

81.38

81 .90

85.36

87.38

4.40

4.48

4.54

4. 96

5.20

5.62

5.71

5. 80

6 .36

6.69

4000.0

5000.

6000.

7000.0

8000.0

88.81

89.92

90.83

91.60

92.27

5.37

5.51

5.62

5.71

5.79

6.93

7.11

7.26

7.38

7.49

9000.0

10000.

50000.0

1 00000.

500000.

92.85

93.38

101.40

104. 85

112.88

5. 86

5.93

6.90

7.32

8.30

7.59

7.67

8.99

9.56

10.87

1 000000.0 116.33 8.72 1 1 .44

198
CAPE HATTERAS. N.C. C1912-1956J CAUTION SEE APPENDIX 1 AND SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 45.00

THE SAMPLE MEAN = 57.95

THE SAMPLE STANDARD DEVIATION = 12.42

THE SAMPLE MINIMUM = 42.51

THE SAMPLE MAXIMUM = 102.97

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION( FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

1 1 /28/1

50 . 54. NW 51.

09/03 / 1 3 50 . 7 1. SE 66.

50 . 56 • N 5 2.

1 2/26/1

50 . 55. W 51.

50 . 54 . N W 51.

-•J w . 56 . N W 76 . sw 7 1.

47 . N 4 4.

1 1 / ?n/2 n "=10 . 47 - N 4 4.

1 2/ 18/2

50. 47 • sw 4 4.

0R/Q3/22 50. 54 . N W 5 1.

Ofi/22 /?3 50 . 54 . NW 5 1.

0R/25/P4 50 . 5 0, N W 56 • s o « •J * . w 5 1.

1 1 / \ fs / P f\ •=i O . S4 - c;f 51.

\J ^ / \J ^/ c. ( o u . o ^ . IN It o o .

1 1/11/28 50. 65. N 61.

03/09/29 50. 52. N 49.

09/12/30 50. 57. N 53.

06/08/31 50. 59. W 55.

03/06/32 50. 68. w 64.

09/16/33 50. 91 . NW 85.

09/08/34 50. 73. NW 68.

08/07/35 50. 55. NW 5 1 . 09/18/36 50. 91 . NW 85.

0 1/29/37 50. 72. N 67.

09/21 /38 50. 66. NW 62.

07/14/39 50. 77. W 72.

01/24/40 50. 66. NW 62.

05/23/41 50. 56. NW 52.

08/06/42 50. 59. N 55.

04/13/43 50. 49. NW 46.

09/14/44 50. 110. W 103.

05/1 1/45 50. 56. NW 52.

08/12/46 50. 57. N 53.

03/28/47 47. 52. W 49.

02/01/48 47. 65. NE 6 1 . 08/24/49 47. 73. NW 69.

199
03/01/50 47, 45. SW 43

11/03/51 47. 47. W 44

02/27/52 47. 50. NW 47

08/13/53 47. 77. SE 73

08/30/54 47. 72. NW 68

09/19/55 56. 68. SE 63

02/28/56 56. 54. SW 50

200
a

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201
CHARLOTTE»N.C. (1951-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = THE SAMPLE MEAN = THE SAMPLE STANDARD DEVIATION = THE SAMPLE MINIMUM = THE SAMPLE MAXIMUM =

DATE ANEMOMETER FASTEST MILE WIND SPEED

ELEVATION(FT) AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

05/11/51 41 . 34. S

05/10/52 41 • 44. SW

06/10/53 41 • 41. NW

1 2/06/54 58. 57. NE

03/22/55 58. 46. SW

04/07/56 58. 52. SW

06/19/57 58. 57. NW

06/06/58 58. 56. NW

07/10/59 58. 50. NW

01/30/60 58. 56. NE

02/25/61 20. 49. SW

07/23/62 20. 59. NW

03/06/63 20. 33. SW

03/05/64 20. 34. SW

02/25/65 20. 38. SW

02/13/66 20. 37. SW

03/07/67 20. 35. SW

12/28/68 20. 38. SW

06/23/69 20. 37. SW

04/02/70 20. 34. SW

03/15/71 20. 47. SW

07/26/72 20. 34. SW

03/17/73 20. 34. SW

02/22/74 20. 36. SW

12/31/75 20. 45. SW

07/15/76 20. 45. NW

03/13/77 20. 49. SW

27.00

44.68

7.48

32.79

64.58

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

33.

42.

40.

52.

42.

48.

52.

51.

46 • 5 1.

54.

65.

36.

37.

42.

4 1.

38.

42.

41.

37.

5 1 . 37.

37.

39.

49.

49.

54.

202
RETURN PERIOD

(IN YEARSJ

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DI STRI8UTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3.0

4.0

5. 0

6.0

43.55

46.82

46. 92

50.47

51.70

1 .32

1.62

1.84

2.02

2. 17

1 . 32

1 . 68

1 .98

2.23

2.43

7. 0

8.0

9. 0

10.0

20. 0

52.73

53.60

54.37

55. 05

59.44

2.30

2.41

2.51

2.60

3.18

2.60

2-75

2.89

3.01

3.80

27, 0

30.0

40.0

50.0

60.0

61 .32

61.97

63.75

65. 13

66.25

3.43

3.52

3.76

3.95

4.10

4.14

4.26

4.60

4 .85

5. 06

70.0

80. 0

90.0

100.0

200.0

67.20

68.02

68. 74

69.39

73.64

4.24

4.35

4.45

4. 54

5.13

5.24

5. 39

5 .53

5.65

6 .46

300. 0

400.0

500.0

600.0

700. 0

76. 12

77.88

79.24

80.35

81 .29

5.48

5.73

5.92

6. 08

6.21

6.93

7.26

7.52

7.73

7.91

800. 0

900.0

1000.0

2000.0

3000.

82. 1 1 82.83

83.47

87.71

90.18

6.32

6.43

6.52

7.12

7.47

8.07

8.20

8 .33

9.14

9.61

4000.0

5000.0

6000.0

7000.

3000.

91.94

93.30

94.41

95.35

96. 17

7.72

7.91

8.07

8.20

8.32

9.95

10.21

10 .42

10.60

10.76

9000.0

10000.0

50000.0

100000.0

500000.

96.89

97.53

107.35

111.59

121 .42

8.42

8.51

9.91

10.51

1 1 .92

10.90

11 .02

12.90

13.72

15.61

1 000000.

125.65 12. 52 16 • 42

203
GREENSBORO, N.C. (1930-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 48.00

THE SAMPLE MEAN = 42.33

THE SAMPLE STANDARD DEVIATION = 7.55

THE SAMPLE MINIMUM = 31.32

THE SAMPLE MAXIMUM = 66.77

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

06/24/30 56. 38. W 35.

06/21/31 56. 52. NW 48.

07/14/32 56. 63. N 58.

03/07/33 56. 38. s.w 35,

07/26/34 56. 54. NW 50.

03/23/35 56. 49. N 45.

07/25/36 56. 50. W 46.

04/24/37 56. 40. E 37.

05/23/38 56. 38. SW 35.

06/08/39 56. 42. NW 39.

05/26/40 56. 59. SW 54.

12/23/41 56. 40. SE 37.

03/09/42 56. 42. SW 39.

04/13/43 56. 41. NW 38.

1 0/20/44 56. 38. NE 35.

12/05/45 56. 36. NE 33.

02/25/46 56. 34. NW 31.

03/25/47 56. 42. W 39,

01/24/48 56. 39. NE 36.

05/26/49 56. 40. NW 37.

05/25/50 56. 42. NE 39.

02/01/51 56. 43. SW 40.

07/30/52 56. 45. NW 41.

04/30/53 56. 42. W 39.

1 2/30/54 56. 45. s 41.

04/24/55 56. 42. w 39.

02/25/56 56. 51 . w 47.

08/0 1/57 56. 42. NE 39.

06/14/58 56. 39. SE 36.

01/21/59 56. 36. SW 33.

1 0/03/60 56. 43. N 40.

02/25/6 1 20. 43. SW 47.

04/13/62 20. 38. w 42.

03/19/63 20. 38. NW 42.

03/30/64 20. 42. NW 46.

05/12/65 20. 48. NW 53.

02/13/66 20. 40. SW 44.

05/29/67 20. 61 . NW 67.

20^1
12/28/68 20. 39, SW 43

06/24/69 20. 40. SW 44

04/23/70 20. 38. W 42

01/26/71 20. 43. NW 47

02/19/72 20. 34. NW 37

04/09/73 20. 42. SW 46

02/22/74 20. 40. SW 44

04/03/75 20. 39. NW 43

07/15/76 20. 60. NW 66

08/23/77 20. 39. SE 43

205
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UJ z < • o > U o ro m 00 01 o CM N 10 in lO N 01 o ro o 01 CM in r<- 01 ro CM CM -0 01 CM * N 01 CM <t s

Q 1- * * * in in in o lO vO o N N oo oo 00 Oi 01 Oi 01 o o CM CM ro ro ro 00 o

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206
WILMINGTON. N.C. (1952-1977) CAUTION — SEE APPENDIX 1

THE SAMPLE NUMBER OF OBSERVATIONS = 26.00

THE SAMPLE MEAN = 49.87

THE SAMPLE STANDARD DEVIATION = 10.91

THE SAMPLE MINIMUM = 39.41

THE SAMPLE MAXIMUM = 84.26

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT ) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

06/23/52 43. 54. NW 52.

02/15/53 43. 65. E 62.

1 0/15/54 43. 65. E 62.

08/1 1/55 43. 72. NE 69.

02/25/56 43. 66. SW 63.

04/05/57 43. 44. SW 42.

09/27/58 43. 88. N 84.

06/02/59 43. 45. SW 43.

09/11/60 43. 53. NW 5 1 • 04/12/6

43. 48. SW 46.

1 1/26/62 43. 59. N 56 . 03/06/63 20. 43. SW 47.

01/20/64 20. 50. w 55.

04/12/65 20. 37. w 41 . 0 2/13/6 6 20. 47. SW 51 .

1 1/24/67 20. 45. w 49.

01/13/6 8 20. 36. SE 39.

03/09/69 20. 38. w 42.

04/02/70 20. 44. SW 46.

1 2/18/71 20. 40. NW 44.

02/03/72 20. 37. SW 41 . 02/10/73 20. 42. N 46.

06/27/74 20. 38. NE 42.

04/19/75 20. 36. SW 39.

02/01/76 20. 38. SW 42.

04/05/77 20. 37. SW 4 1.

207
ct

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liJ «i« -< in o o o

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208
BI SMARCK, N.O. (1940-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = .38.00

THE SAMPLE MEAN = 58.30

THE SAMPLE STANDARD DEVIATION = 5.57

THE SAMPLE MINIMUM = 49.26

THE SAMPLE MAXIMUM = 68.94

DATE ANEMOMETER

ELEVATIONCFT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

C\ f\ / / II Ci AT - ^ f . •tO . OS. MIN WW HO . O D . MIN WW AT.

•»o . f £. m w AO OV . A co AO. o ^ .

rt e= y n A y A c A

OX. IN n o o .

\j f / ox / *f o *tO . f ^ . w A Q . 11 C> A y A "7 **-o . ^03c: . IN W AO ^P .

ri\j X1 /y 1iDy*i-o y A *^o . O D . INKJ WW A O

"7 y 1 y A Q o . O O .

KlIN AO nu . A"^yr\'7 yc^r\

\j o f \J f yDU OO .

KlIN A A Of. IV O O .

fi/k y 1 n yc^ ^ A o o . ^ A . rt^yiA uoy x*fyDo yc^'a A "3 OO .

Kl U/ IN W AO OT . 06/27/54 43 . 65 . E 6 2.

04/20/55 43. 63. W 60 . 1 2/10/56 43. 61 . NW 58.

07/06/57 43. 59. SW 56.

1 1/25/58 43. 67. NW 64.

09/08/59 43. 66. NW 63.

05/25/60 43. 66. NW 63.

09/02/643. 57. W 55.

0 1/06/62 20. 50. N 55.

04/16/63 20. 56. SW 6 1 . 06/08/64 20. 52. NE 57.

05/01/65 20. 52. NW 57.

03/04/66 20. 52. NW 57.

05/07/67 20. 52. NW 57.

12/04/68 20. 46. NW 50 . 05/09/69 20. 52. N 57.

02/04/70 20. 50. NW 55.

04/10/71 20. 45. NW 49.

02/17/72 20. 59. NW 65.

12/08/73 20. 45. NW 49.

05/01/74 20. 45. W 49.

01/1 1/75 20. 54. NW 59.

02/02/76 20. 47. NW 5 1.

05/28/77 20. 45. SW 49.

209
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3.0

4.0

5.0

6.0

57.45

59. 84

61.36

62. 49

63.39

. 83

1.01

1 .16

1 .27

1 .36

.83

1 . 05

1 . 24

1 .40

1 . 53

7.0

8.0

9.0

10.0

20. 0

64. 13

64.77

65.33

65. 83

69. 03

1 .44

1 .51

1.58

1 .63

1 .99

1 . 63

1 .73

1 .81

1 .89

2.39

30.0

38.0

40.0

50.0

60. 0

70.87

71 .93

72. 17

73. 17

73.99

2.21

2. 33

2.36

2.48

2.58

2.68

2.85

2.89

3.05

3.18

70.0

80.0

90.0

100.0

200. 0

74.68

75.28

75. 80

76.27

79.37

2.66

2.73

2. 79

2.85

3.22

3.29

3.39

3.47

3.55

4.05

300.0

400.0

500.0

600. 0

700. 0

81.17

82.45

83.45

84. 26

84. 94

3.44

3.60

3. 72

3.82

3. 90

4.35

4.56

4.72

4.86

4 .97

800. 0

900. 0

1 000.

2000.

3000.0

85.54

86. 06

86.53

89.61

91 .42

3. 97

4.03

4. 09

4.47

4.69

5.07

5.15

5.23

5.74

6. 03

4000.

5000.0

6000.0

7000.0

8000.

92.70

93.69

94.50

95. 18

95. 78

4. 84

4. 97

5.07

5. 15

5.22

6. 25

6.41

6.54

6.66

6.75

9 00 0.0

10000.0

50000.0

1 00000.

500000-

96.30

96.77

103. 93

107. 01

114. 17

5.29

5.34

6.22

6.60

7.48

6.84

6.92

8.10

8.61

9.80

1 000000.0 117.25 7. 86 10.31

210
FARGO.N.D. (1942-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 36.00

THE SAMPLE MEAN = 59.35

THE SAMPLE STANDARD DEVIATION = 11.01

THE SAMPLE MINIMUM = 43.45

THE SAMPLE MAXIMUM = 100.46

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT ) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

04/27/42 47. 65. N 61.

06/24/43 47. 66. NW 62.

05/03/44 47. 50. N 47.

05/07/45 47. 46. W 43.

06/28/46 47. 66. W 62.

01/14/47 47. 57. W 54.

07/29/48 47. 54. NW 51.

07/28/49 47. 48. W 45.

06/22/50 47. 66. NW 62.

08/01/51 47. 60. N 57.

07/01/52 47. 60. SE 57.

05/29/53 47. 60. SW 57.

06/07/54 86. 91 . SW 79.

08/03/55 86. 71. NW 62.

1 1/25/56 86. 66. N 58.

06/22/57 86. 60. N 52.

07/26/58 86. 56. W 49.

06/09/59 86. 115. NW 100.

09/01/60 86. 88. N 77.

06/28/6

20. 59. SW 65.

04/08/62 20. 60. w 66.

04/03/63 20. 52. NW 57.

04/13/64 20. 67. NW 73.

07/29/65 20. 60. S 66.

10/22/66 20. 48. w 53.

01/16/67 20. 56. N 61.

01/11/68 20. 62. SE 68.

03/28/69 20. 41 . N 45.

02/01/70 20. 51 . NW 56.

10/18/71 20. 45. SE 49.

0 1/24/72 20. 48. NW 53.

10/11/73 20. 52. S 57.

07/13/74 20. 50. NW 55.

01/11/75 20. 56. NW 61.

06/28/76 20. 59. W 65.

1 1/09/77 20. 47. N 51.

211
a.

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> a vO o ro lO CO 0< CM ro CM o CM in 03 o ro in N o oo in o in 01 (M in 00 CJi to lO 00 in o in o o to

•in

in lO -« lO vO s CO It) 01 01 01 01 o o o o (M CM ro * <* in in in s 01 o CM ro to * CM N o IV

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o

Q

cr: in

Ul a:

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ai ..t.. ..... . z> cMto-*iniO ^-coc^oo oio o o o ooooo ooooo ooooo ooooo ooooo o

q: «tM roto-*iniO ncoooo ooooo ooooo ooooo ooooo o

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212
WILLISTON, N.D. (1962-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 16.00

THE SAMPLE MEAN = 56.46

THE SAMPLE STANDARD DEVIATION = 6.57

THE SAMPLE MINIMUM = 47.07

THE SAMPLE MAXIMUM = 69.26

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER' ELEVATIONJ

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

10/15/62 35. 57. N 56.

07/05/63 35. 63. NW 62.

01/17/64 35. 70. NW 69.

02/20/65 35. 66. NW 65.

07/01/66 35. 64. NW 63.

03/31/67 35. 52. NW 51 • 01/05/68 20. 47. NW 51.

05/27/69 20. 46. NW 50.

02/03/70 20. 56. NW 61.

07/10/71 20. 50. SE 55.

02/17/72 20. 52. NW 57.

12/08/73 20. 51 . SW 56.

02/27/74 20. 54. w 59.

10/04/75 20. 43. w 47.

02/01/76 20. 43. NW 47.

03/29/77 20. 47. NE 51.

213
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DI STRIBUTION

ESTIMATED

STAN, DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4. 0

5.0

6.0

55.49

58.49

60.41

61 .83

62. 96

1 .50

1 . 84

2.10

2.31

2.48

1.51

1.91

2.26

2.54

2.77

7. 0

8.0

9.0

10.0

16. 0

63.90

64.70

65.40

66. 02

68.76

2.62

2.75

2.86

2.96

3.41

2.97

3.14

3.29

3.43

4.04

20.0

30.0

40.0

50. 0

60. 0

70. 05

72.36

74.00

75.26

76.29

3.62

4.01

4.29

4.50

4.68

4.33

4.86

5.24

5.53

5.77

70.0

80.0

90.0

100.0

200.0

77. 16

77.91

78.57

79.16

83. 05

4.83

4.96

5. 07

5. 17

5.85

5.97

6.15

6.30

6.44

7.36

300.0

400. 0

500. 0

600. 0

70 0. 0

85.32

86. 93

88. 1 8

89.20

90. 07

6.25

6.53

6.75

6.93

7.08

7.89

8.28

8.57

8.81

9.02

800. 0

900. 0

1000.0

2000.

3000.

90.81

91.47

92. 06

95.94

98.21

7.21

7.32

7.43

8.11

8.51

9.20

9.35

9.49

10.41

10.95

4000.

5000.0

6000.0

7000.0

8000.0

99. 81

101. 06

102.08

102.94

103.69

8.79

9.02

9.20

9.35

9.48

11 .34

11 .64

1 1 .88

12.08

12.26

9000.0

10000.

50 0 0 0.

100000.0

500000.

104.35

104.94

1 13.94

1 17. 81

126. 82

9.60

9.70

1 1 .30

1 1 .98

13.58

12.42

12.56

14.71

15.64

17.79

1 000000.

130.69 14.27 18.72

214
CLEVELAND, OHIO (1942-1976)

THE SAMPLE NUMBER OF OBSERVATIONS = 35.00

THE SAMPLE MEAN = 52.67

THE SAMPLE STANDARD DEVIATION = 6.56

THE SAMPLE MINIMUM = 40.50

THE SAMPLE MAXIMUM = 68.52

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

03/09/42 54 . 56. SW 52.

0 1/19/43 54. 48. SW 44.

02/23/44 54. 57. SW 53 . 02/22/45 54. 59. SW 55.

02/14/46 54. 65. SW 60 . 03/25/47 54. 57. NW 53.

03/19/48 54 . 74. w 69.

05/19/49 56 . 56. SW 52.

0 1/14/50 56 • 59. SW 54.

04/28/556. 65. w 60.

06/08/52 56 . 56. W 52.

03/04/53 56. 63. w 58.

04/07/54 56. 58. SW 53.

03/22/55 56. 68. SW 63.

02/08/56 88. 65. w 57.

05/14/57 88. 68. SW 59.

04/24/58 88. 59. SW 5 1.

03/15/59 88. 70. SW 61 . 09/01/60 20. 42. N 46.

02/25/61 20. 43. NW 47.

03/06/62 20. 38. N 42.

08/03/63 20. 57. s 62.

03/05/64 20. 48. SW 53.

07/09/65 20. 43. w 47.

03/23/66 20. 40. SW 44.

02/15/67 20. 53. w 58.

12/05/68 20. 40. SW 44.

07/04/69 20. 40. N 44 . 03/26/70 20. 45. SW 49.

12/15/71 20. 49. SW 54.

07/18/72 20. 47. SW 5 1.

06/04/73 20. 37. SW 4 1 . 05/11/74 20. 50. w 55.

04/19/75 20. 45. SW 49.

02/18/76 20. 49. SW 54.

215
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DI STRIBUTION

ESTI MATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3.0

4.0

5.0

6.0

51 .66

54. 51

56.34

57.69

58.76

1 . 02

1 .24

1 .42

1.56

1 .67

1. 02

1 .29

1 .53

1 .72

1 .87

7. 0

8. 0

9.0

10.0

20. 0

59.65

60.42

61.09

61.68

65.51

1 .77

1 .86

1 .93

2.00

2.45

2.01

2.12

2.23

2.32

2.93

30.0

35. 0

40.0

50.0

60.0

67.71

68.54

69.26

70.46

71 .44

2.71

2.81

2.90

3. 04

3.16

3.29

3.42

3.54

3.74

3.90

70.0

80.0

90. 0

100.0

200. 0

72.26

72.98

73.61

74. 17

77. 87

3.26

3.35

3.43

3. 50

3.95

4. 04

4.16

4.26

4.36

4.97

300.0

400. 0

500. 0

600. 0

70 0. 0

80. 03

81.56

82.75

83. 72

84.54

4.22

4.41

4.56

4.68

4.78

5. 34

5.59

5.79

5.96

6.10

800.0

900.0

1000.0

2000.0

3000.0

85.25

85.88

86.44

90. 13

92.28

4. 87

4.95

5.02

5.48

5.75

6.22

6.32

6.42

7.04

7.41

4000.

5000.0

600 0.0

7000.

8000.0

93.81

95.00

95.97

96.79

97.50

5.95

6. 09

6.22

6.32

6.41

7.66

7.87

8.03

8. 17

8.29

9000.0

10000.0

50000.0

100000.0

500000.

98. 12

98.69

107.24

11 0.93

119.49

6.49

6. 56

7.64

8.10

9. 18

8.40

8.49

9 .94

10.57

12.03

1 000000.0 123. 18 9.65 12.65

216
COLUMBUS, OHIO (1952-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 26.00

THE SAMPLE MEAN = 49.38

THE SAMPLE STANDARD DEVIATION = 6.61

THE SAMPLE MINIMUM = 39.41

THE SAMPLE MAXIMUM = 61.30

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION<FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

1 1/21/52 46. 61 . N 58.

07/02/53 46. 43. NW 41 . 03/28/54 46. 52. S 49.

03/11/55 46. 63. NW 60.

02/25/56 46. 57. W 54.

05/18/57 46. 48. w 45.

08/14/58 46. 42. N 40.

0 1/21/59 128. 56. W 47.

02/22/60 20. 42. w 46.

04/28/61 20. 40. NW 44.

01/07/62 20. 38. SW 42.

03/20/63 20. 44. W 48.

05/24/64 20. 50. NW 55.

1 1/27/65 20. 47. W 51 • 06/28/66 20. 47. NW 51 . 02/16/67 20. 54. W 59.

12/28/68 20. 42. w 46.

1 1/30/69 20. 36. SW 39.

04/02/70 20. 56. w 6 1.

12/15/71 20. 47. SW 51 . 07/09/72 20. 41 • SW 45.

08/30/73 20. 42. SW 46.

04/14/74 20. 52. SW 57.

03/24/75 20. 37. SM 41 . 07/15/76 20. 51 • w 56.

03/04/77 20. 47. SW 51.

217
RETURN PERIOD

(IN YEARS)

2.0

3.0

4. 0

5.0

6.0

7,0

8.0

9. 0

10.0

20. 0

26. 0

30.0

40.0

50. 0

60.0

70-0

80.0

90.0

100.0

200. 0

300. 0

400.0

500. 0

600. 0

700. 0

800.0

900. 0

1 00 0.0

2000.

3000.

4000.0

5000.0

6000.

7000.0

8000.0

9000.0

10000.0

50000.0

1 00000.0

500000.0

1 000000.0

REOICTED EXTREME W BASED ON

EXTREME VALUE TYPE

DISTRIBUTION

48.39

51.28

53. 13

54.51

55.60

56,50

57. 28

57. 96

58.56

62.45

63.90

64.68

66.26

67.48

68.47

69.31

70.04

70.68

71.25

75. 01

77.20

7 8.76

79.96

80.95

81.78

82.50

83. 14

83.71

87.45

89.64

91.20

92.40

93.39

94.22

94. 94

95. 58

96. 15

1 04.84

108.58

117.28

121.02

ND ESTIMATED

STAN. DEV.

1 SAMPL. ERROR

CRAMER-RAO

1.19

1 .45

1 .66

1 . 82

1 . 96

2. 07

2.17

2.26

2.34

2. 86

3. 06

3. 17

3.39

3. 56

3.70

3.82

3.92

4.01

4. 09

4.62

4.94

5.16

5.33

5.47

5.59

5.70

5.79

5.87

6.41

6.72

6.95

7.12

7.27

7.39

7. 49

7.58

7.66

8.92

9.47

10.73

1 1 .28

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

1.19

1 . 51

1 .79

2.01

2.19

2.34

2.48

2.60

2.71

3.42

3.69

3.84

4.14

4.37

4.56

4.72

4. 86

4.98

5.09

5.81

6.24

6.54

6.77

6.96

7.13

7.27

7.39

7.50

8.23

8.66

8.96

9.19

9.39

9.55

9.69

9.81

9.92

1 1 .62

12.35

14.06

14.79

218
DAYTON.OHIO (1943-1977J

THE SAMPLE NUMBER OF OBSERVATIONS = 35.00

THE SAMPLE MEAN = 53.62

THE SAMPLE STANDARD DEVIATION = 7.61

THE SAMPLE MINIMUM = 40.50

THE SAMPLE MAXIMUM = 72.04

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION( FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

07/25/43 55. 70. W 65.

02/22/44 55. 63. w 58.

06/16/45 55. 70. sw 65.

02/14/46 55. 66. sw 6 1.

03/24/47 55. 69. NW 64.

03/19/48 55. 70. W 65.

01/18/49 55. 49. sw 45.

06/16/50 55. 78. NM 72.

06/27/51 55. 56. W 52.

02/08/52 55. 62. w 57.

03/04/53 55. 51 . w 47.

05/02/54 55. 56. s 52.

03/22/55 55. 61 . sw 56.

02/25/56 55. 56. NW 52.

1 1/08/57 55. 49. SW 45.

04/05/58 55. 56. NW 52.

03/06/59 55. 63. W 58.

04/07/60 55. 56. W 52.

02/25/61 55. 59. NW 54.

02/13/62 20. 39. W 43.

06/10/63 20. 53. W 58.

03/05/64 20. 50. s 55.

11/ 27/6

20. 37. SW 41.

06/27/66 20. 40. NW 44.

02/15/67 20. 56. NW 61 . 04/04/68 20. 43. SW 47.

06/12/69 20. 39. W 43.

04/02/70 20. 48. w 53.

01/26/71 20. 56. w 61 . 07/24/72 20. 52. w 57.

12/26/73 20. 47. s 5 1 . 04/14/74 22. 47. w 51 . 04/03/75 22. 42. w 45.

01/13/76 22. 45. sw 48.

03/04/77 22. 45. w 48.

219
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3.0

4.0

5.0

6.0

52.44

55.76

57. 89

59.46

60.71

1.18

1 .44

1.65

1.81

1 .94

1 . 18

1 .50

1.77

1 .99

2. 17

7.0

8. 0

9.0

10.0

20.0

61.75

62.64

63.42

64. 1 1 68.56

2.05

2.15

2.24

2.32

2. 84

2.32

2.46

2.58

2.68

3.39

30.0

35.0

40.0

50.0

60. 0

71. 13

72. 1 0

72. 94

74.33

75.47

3.14

3.26

3.36

3.53

3.66

3.81

3.97

4.10

4.33

4.52

70.0

80.0

90.0

100.0

200. 0

76.43

77.27

78.00

78.66

82.96

3. 78

3.88

3.97

4. 05

4.58

4.68

4.82

4.94

5.05

5.76

300.0

400. 0

500. 0

600. 0

700. 0

85.48

87.26

88.65

89.78

90. 73

4.89

5.11

5.28

5.42

5.54

6.18

6.48

6.71

6.90

7.06

800.0

900.0

1 000.0

2000.0

3000.

91.56

92.29

92. 94

97. 23

99.75

5.65

5.74

5.82

6.35

6.67

7.20

7.32

7.43

8.16

8.58

4000.0

5000.

6000.0

7000.

8000.0

101 .53

102.91

104. 04

104.99

105. 82

6.89

7. 06

7.20

7.32

7.42

8.88

9.11

9.30

9.46

9.60

9000.0

10000.0

50000.0

100000.0

500 000.

106.55

107.20

117.17

121 .46

131.43

7.52

7.60

8.85

9.39

10.64

9.73

9.84

1 1 .52

12.25

13.94

1 000000.

135.72 11.18 14.66

220
1

TOLEDO»OHIO (1943-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 35,00

THE SAMPLE MEAN = 50.79

THE SAMPLE STANDARD DEVIATION = 8.97

THE SAMPLE MINIMUM = 38.31

THE SAMPLE MAXIMUM = 82.19

DATE ANEMOMETER

ELEVATION(FT>

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

03/17/43 41 . 56. SW 54.

06/02/44 47. 47. w 44.

03/17/45 47. 61 . s 58.

02/14/46 47. 63. SW 60.

04/06/47 47. 59. SW 56.

03/19/48 47. 87. SW 82.

01/19/49 47. 66. SW 62.

01/14/50 47. 56. SW 53.

03/03/51 47. 52. SW 49.

1 1/26/52 47. 56. SW 53.

03/18/53 47. 53. W 50.

03/25/54 47. 49. SW 46.

03/22/55 66. 56. SW 50.

04/03/56 66. 72. SW 65.

04/05/57 66. 66. W 59.

04/24/58 66. 46. SW 41.

04/03/59 20. 40. NW 44.

02/19/60 20. 35. NW 38.

06/01/6

20. 47. w 5 1.

04/30/62 20. 51 . NW 56.

06/10/63 20. 42. SW 46.

06/12/64 20. 37. SW 41 . 08/27/65 20. 47. w 51 . 0 1/27/66 20. 35. NW 38.

02/16/67 20. 56. SW 6 1 . 04/08/68 20. 40. SW 44.

07/04/69 30. 53. NW 54.

07/02/70 30. 54. NW 55.

01/29/71 30. 47. w 48.

0 1/24/72 30. 47. w 48.

06/26/73 30. 43. SW 44.

04/14/74 30. 40. SW 4 1 . 07/03/75 30. 50. NW 51 . 03/05/76 30. 41. SW 42.

01/28/77 30. 42. w 43.

221
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22^1
TULSA. OKLAHOMA (1943-1977). REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 35.00

THE SAMPLE MEAN = 47.85

THE SAMPLE STANDARD DEVIATION = 6.92

THE SAMPLE MINIMUM = 35.97

THE SAMPLE MAXIMUM = 68.30

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

04/11/43 61 . 70. NW 64.

08/06/44 61 . 56. NW 51 . 07/09/45 61 . 56. N 51 . 06/30/46 6 1. 46- S 42.

0 1/29/47 61 . 55. SW 50.

06/21/48 61. 65. NW 59.

05/21 /49 61 . 75. SW 68.

01/24/50 61 . 54. SW 49.

08/10/51 61 . 56. W 51 . 03/12/52 61 . 43. SW 39.

1 1/20/53 61 . 41 . SW 37.

08/01/54 61. 56. N 51.

06/05/55 61 . 43. w 39.

02/24/56 61 . 48. NW 44.

1 1/29/5 7 39. 51 . N 50.

02/27/58 39. 47. W 46.

03/20/59 39. 50. N 49.

05/19/60 39. 48. SW 47.

04/30/61 39. 57. NW 55.

03/28/62 39. 37. SE 36.

04/18/63 23. 45. SE 48.

04/12/64 23. 40 • S 43.

06/05/65 23. 38. SE 40.

10/14/66 23. 41 . SW 44.

12/18/67 23. 42. SW 45.

12/12/68 23. 41 . SW 44.

06/22/69 23. 47. S 50.

10/22/70 23. 38. SE 40 . 05/26/71 23. 49. NW 52.

04/26/72 23. 40. SE 43.

06/11/73 23. 45. S 48.

04/10/74 23. 47. SE 50 • 01/05/75 23. 46. S 49.

03/29/76 23. 46. SW 49.

12/16/77 23. 49. SW 52.

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P0RT1.AND. OREGON (1950-1977). REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = THE SAMPLE MEAN = THE SAMPLE STANDARD DEVIATION = THE SAMPLE MINIMUM = THE SAMPLE MAXIMUM =

DATE ANEMOMETER FASTEST MILE WIND SPEED

ELEVATION(FT) AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

10/27/50 33. 50. SW

12/04/51 33. 57. S

11/14/52 33. 42. SW

11/14/53 33. 55. S

01/07/54 33. 47. S

02/28/55 33. 56. S

01/04/56 33. 52. S

04/14/57 33. 60. S

02/24/58 33. 61. SW

01/24/59 33. 42. s 04/13/60 33. 47. SW

11/21/61 33. 56. SW

10/12/62 33. 88. s 09/09/63 33. 61. s 01/17/64 33. 49. s 02/05/65 25. 58. SE

01/01/66 25. 36. SW

10/02/67 25. 70. s 01/09/^8 25. 45. s 12/11/69 25. 46. SW

1 1/22/70 25. 45. E

03/26/71 25. 48. s 04/05/72 25. 48. s 01/09/73 25. 46. E

03/01/74 20. 50. s

0 1/31/75 20. 37. SE

02/24/76 20. 40. SW

12/15/77 20. 43. SW

28.00

52.58

10.34

37.77

87.93

CALCULATED FASTEST MILE

WIND SPEED AT 1 OM ABOVE

GROUND (CORRECTED SPEED)

50.

57.

42.

55.

47.

56.

52.

60.

61.

42.

47.

56.

88.

61.

49.

61 . 38.

73.

47.

48.

47.

50.

50 . 48.

55.

41 • 44.

47.

227
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228
ROSEBURG. OREGON (1953-1964). REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 12.00

THE SAMPLE MEAN = 35.59

THE SAMPLE STANDARD DEVIATION = 5.95

THE SAMPLE MINIMUM = 29.63

THE SAMPLE MAXIMUM = 51.08

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT ) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

01/29/53 29. 29. S 30.

10/06/54 29. 33. S 34.

01/17/55 29. 33. SE 34.

01/15/56 29. 34. SW 35.

10/19/57 29. 31. N 32.

02/24/58 29. 37. SW 38.

11/20/59 29. 31. SW 32.

11/20/60 29. 30. SW 31.

02/24/61 29. 38. SW 39.

10/12/62 29. 50. S 51.

03/27/63 29. 40. S 41.

03/11/64 29. 32. S 33.

229
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230
HARRI SBURG.PA. (1939-1977). REFER To SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 39.00

THE SAMPLE MEAN = 45.73

THE SAMPLE STANDARD DEVIATION = 7.54

THE SAMPLE MINIMUM = 35.07

THE SAMPLE MAXIMUM = 64.44

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

02/20/39 50. 60. SW 56.

05/15/40 50. 46. s 43.

03/18/41 50. 42. NW 39.

06/12/42 50. 46. sw 43.

08/04/43 50. 43. sw 40.

1 2/28/44 50. 41. NW 38.

03/31/45 50. 47. S 44 • 02/14/46 50. 49. S 46.

03/25/47 50. 42. w 39.

04/09/48 46. 44. w 42.

01/01/49 46. 39. NW 37.

1 1/25/50 46. 58. SE 55.

12/15/51 46. 42. NW 40 . 04/05/52 46. 56. SW 53.

12/31 /53 46. 61 . NW 58.

03/01/54 46. 64. SE 61.

03/07/55 46. 68. W 64.

02/25/56 46. 59. NW 56.

02/10/57 46. 41 . NW 39.

1 1/29/58 46. 38. W 36.

01/09/59 46. 40. NW 38.

02/20/60 46. 37. W 35.

02/26/61 46. 37. NW 35.

03/06/62 21 . 36. NE 39.

06/10/63 21 . 48. W 52.

03/26/64 21 . 42. W 46.

04/12/65 21 . 42. w 46.

01/30/66 21 . 42. NW 46.

04/22/67 21 . 43. w 47.

02/17/68 21 . 43. NW 47.

01/01/69 21 . 36. NW 39.

04/02/70 21 • 51. W 55.

0 1/26/71 21 . 46. W 50.

01/25/72 21 . 42. w 46.

03/17/73 21 . 40. sw 43.

09/29/74 21 . 39. NW 42.

04/03/75 21 • 46. NW 50.

01/14/76 21 . 50. W 54.

231
11/26/77 21. ^2. NW

232
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DI STRI BUTION

ESTI MATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH, OF MOM.

2.0

3.0

4.0

5. 0

6.0

44. 56

47. 85

49. 96

51 .52

52.76

1.11

1 .35

1 . 55

1 .70

1 . 82

1.11

1.41

1 .66

1 . 87

2. 04

7.0

3.0

9. 0

10.0

20.0

53. 79

54. 68

55.45

56. 13

60. 56

1 .93

2.02

2.10

2.18

2. 66

2.18

2.31

2.42

2.52

3.18

30.0

39.0

40.0

50.0

60.0

63. 10

64.74

64. 90

66.28

67.41

2.95

3. 14

3. 15

3.31

3.44

3.57

3.83

3.85

4. 07

4.24

70.0

80.0

90.0

100.0

200.0

68. 37

69. 19

69.92

70.57

74. 85

3.55

3.65

3.73

3.81

4.30

4 .39

4.52

4.64

4.74

5.41

300. 0

400. 0

500. 0

600.0

700. 0

77.34

79. 1 1 80.49

81.61

82.56

4.59

4.80

4. 96

5. 09

5.21

5.81

6.09

6.30

6.48

6.63

800.0

900. 0

1000.0

2000.0

3000.

83.38

84. 1 0

84. 75

89. 01

91.50

5.30

5.39

5.46

5.97

6.26

6. 76

6.88

6.98

7.66

8.06

4000.

5000.0

6000.0

7000.

8000.0

93.27

94.64

95.76

96.71

97. 53

6.47

6.63

6.76

6.87

6. 97

8 .34

8. 56

8 .74

8 .89

9.02

9000.0

10000.0

50000. 0

1 00000.

500000.

98.25

98.90

1 08.79

113. 05

122. 95

7. 06

7. 13

8.31

8. 81

9.99

9.13

9 . 24

10.82

1 1 .50

13. 09

1 000000.0 127.21 1 0.50 13.77

233
PHILADELPHIA. PA. (1955-19773 CAUTION SEE APPENDIX 1

THE SAMPLE NUMBER OF OBSERVATIONS = 23.00

THE SAMPLE MEAN = 49.51

THE SAMPLE STANDARD DEVIATION = 5.72

THE SAMPLE MINIMUM = 41.60

THE SAMPLE MAXIMUM = 62.39

DATE ANEMOMETER

ELEVATION( FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

08/13/55 120. 67. E 57.

02/25/56 120. 59. NW 50.

05/26/57 120. 56. SW 47.

06/11/58 120. 73. NW 62.

01/06/59 120. 52. NW 44.

09/12/60 20. 49. NE 54.

04/13/61 20. 39. E 43.

03/06/62 20. 48. NE 53.

01/27/63 20. 42. NW 46.

03/05/64 20. 42. SW 46.

02/25/65 20. 41 • SW 45.

0 1 /31 /66 20. 38. W 42.

02/16/67 20. 40. w 44.

11/12/68 20. 45. NE 49.

06/23/69 20. 57. NW 62.

04/02/70 20. 43. W 47.

03/04/71 20. 43. W 47.

08/26/72 20. 43. N 47.

03/17/73 20. 47. SW 5 1 . 05/12/74 20. 40. NW 44.

04/03/75 20. 47. W 5 1 . 03/21/76 20. 50. NW 55.

08/06/77 20. 49. NW 54.

234
a:

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235
PITTSBURGH. PA, (1935-1952)

THE SAMPLE NUMBER OF OBSERVATIONS - 18.00

THE SAMPLE MEAN = 48.35

THE SAMPLE STANDARD DEVIATION = 5.84

THE SAMPLE MINIMUM = 39.10

THE SAMPLE MAXIMUM = 59.58

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

08/15/35

04/15/36

07/25/37

12/27/38

02/20/39

05/19/40

04/21/41

03/09/42

01/04/43

02/23/44

04/04/45

02/15/46

04/06/47

03/22/48

01/01/49

03/18/50

12/15/51

05/25/52

52.

52.

52.

52.

52.

52.

52.

52.

52.

52.

52.

52.

52.

52.

52.

52.

52.

52.

50. S

60. NW

64.

47.

58.

54.

45,

51 . 50.

48.

52.

60.

49.

NW

W

NW

NW

NW

56. SW

NW

NW

NW

NW

W

w 48. NW

42. NW

43.

58.

47.

56.

60.

44.

54.

50.

42.

52.

47.

47.

45.

48.

56.

46.

45.

39.

40.

54.

236
RETURN PERIOD

(IN YEARSJ

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

18.0

20.0

30. 0

40.0

50.0

60. 0

70.0

80.0

90.0

100.0

200.0

300. 0

400.0

50 0.0

600.0

700.0

800.0

900.0

1000.0

2000.0

3000.

4000.0

5000.0

6000.0

7000.0

8000.0

9000.0

10000.0

50000.0

100000.

500000.0

1 000000.

PREDICTED EXTREME W BASED ON

EXTREME VALUE TYPE

DISTRIBUTION

47.49

50. 12

51 .81

53.06

54. 05

54.87

55.58

56.19

56.74

59.75

60.28

62.31

63.75

64.86

65.76

66.52

67. 18

67.76

68.29

71.70

73.70

75. 1 1 76.21

77. 1 1 77.87

78.52

79. 10

79.62

83. 02

85. 02

86.43

87.53

88.42

89. 18

89.84

90.41

90.93

98. 84

102.24

110. 16

1 13.56

ND ESTIMATED

STAN. DEV.

1 SAMPL. ERROR

CRAMER-RAO

1 .26

1 . 54

1 .76

1 . 93

2.08

2.20

2.30

2.40

2.48

2.95

3.04

3.36

3.60

3.78

3.92

4.05

4. 16

4.25

4.34

4,91

5.24

5.47

5.66

5.81

5.93

6.04

6.14

6.23

6.80

7.14

7.37

7.56

7.71

7.84

7.95

8.05

8. 13

9.47

10.05

1 1 .39

1 1 .97

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

1.26

1 .61

1 .89

2.13

2.32

2.49

2.63

2.76

2.87

3.52

3.63

4.08

4.39

4.64

4.84

5.01

5. 16

5.29

5.40

6 . 17

6.62

6.94

7.19

7.39

7.56

7.71

7.84

7.96

8.73

9. 19

9.51

9.76

9.96

10.13

10.28

10.41

10 . 53

12.34

13.11

14.92

15.70

237
SCRANTON.PA. (1955-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 23.00

THE SAMPLE MEAN = 44.61

THE SAMPLE STANDARD DEVIATION = 4.83

THE SAMPLE MINIMUM = 36.87

THE SAMPLE MAXIMUM = 54.21

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

10/14/55 92. 50. SE 43.

02/25/56 92 . 60. M 52.

12/20/57 92. 47. sw 41 . 08/31 /58 92. 47. sw 41 • 03/06/59 21 . 42. SE 46.

02/25/60 21 . 50. SE 54.

06/02/61 21 . 42. sw 46.

12/30/62 21 . 45. w 49.

04/04/63 21 . 42. w 46.

01/25/64 21 . 43. SE 47.

04/12/65 21. 40. sw 43.

03/01/66 21 . 34. w 37.

02/16/67 21. 41 . sw 44.

05/03/68 21. 39. w 42.

1 1/19/69 21 . 34. s 37.

03/26/70 21. 49. s 53.

03/04/71 21. 38. w 41 . 0 1 /25/72 21. 36. sw 39.

03/17/73 21. sw 47.

12/02/74 21. 42. E 46.

04/03/75 21. 38. NW 41 . 03/17/76 21 . 38. NW 41.

01/28/77 21 . 47. SE 5 1.

238
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DI STRIBUTION

ESTI MATEO

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3. 0

4.0

5.0

6.0

43.68

46.03

47.40

48.42

49.23

.92

1 • 13

1 .29

1 .42

1 .52

.92

1.18

1 .39

1 . 56

1 .70

7. 0

8.0

9.0

10.0

20.0

49. 91

50.48

50.99

51.43

54.32

1.61

1 .69

1 .75

1 .82

2.22

1 .82

1 .93

2.02

2.10

2.66

23.0

30.0

40.0

50.0

60. 0

54.90

55.98

57. 16

58. 06

58. 80

2.30

2.46

2.63

2. 76

2.87

2.77

2.98

3.21

3.39

3.54

70.0

80.0

90.0

100.0

200. 0

59.42

59.96

60.44

60.86

63.65

2.96

3.04

3.11

3.18

3. 59

3.67

3.77

3. 87

3.95

4.52

300. 0

400. 0

500.0

600. 0

700.0

65. 28

66.44

67.34

68. 07

68.69

3.83

4.01

4. 14

4. 25

4. 34

4.84

5.08

5. 26

5.41

5.53

800. 0

900.0

1000.0

2000.0

3000.

69.22

69. 70

70. 12

72.90

74.53

4.42

4.49

4.56

4.98

5.22

5.64

5.74

5.83

6. 39

6 .72

4000.0

5000.

6000.

7000.

8000.0

75. 68

76.58

77.31

77.93

78.46

5.40

5.53

5.64

5.74

5. 82

6 .96

7.14

7 . 29

7.42

7.53

9000.0

1 0000.

50000.0

100000.0

500000.

78. 94

79.36

85.82

88.60

95. 06

5.89

5. 95

6.93

7.35

8.34

7.62

7.71

9.03

9.60

10.92

1 000000.0 97. 84 8.76 1 1 .49

239
BLOCK ISLAND. R.I. (1920-1950) CAUTION SEE APPENDIX 1

THE SAMPLE NUMBER OF OBSERVATIONS = THE SAMPLE MEAN = THE SAMPLE STANDARD DEVIATION = THE SAMPLE MINIMUM = THE SAMPLE MAXIMUM =

DATE ANEMOMETER FASTEST MILE WIND SPEED

ELEVATION(FT) AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

1 1 o Aft . *^ ^ . 7 « i>i 11 Afi •w >. ^ o . 46 . 56. NE

C\P./ ?6 ? A A6 • 63 . N

1X n/iny?*> \J f X \J r ^ -J Aft . 59. N W 46 . 57 . N W AOO £.fyooa.U /o'vc. (

/, £1 **o . o u . MPT INC 0 1/25/28 46. 66. SW

01/07/29 46. 56. SW

02/16/30 46 . 63. NW

12/07/31 46. 59. W

1 1/10/32 46. 62. E

12/27/33 46. 62. NW

12/27/34 46. 61 . NW

I 1/17/35 46. 65. NE

09/19/36 46. 65. N

02/16/37 46. 49. NE

09/21/38 46. 91. SE

1 1/05/39 46. 66. W 02/14/40 46. 59. NE

12/15/41 46. 59. NW

12/02/42 46. 66. W

12/11/43 46. 77. NW

09/14/44 46. 88. SE

01/24/45 46. 69. NW

02/20/46 46. 66. SE

1 1/12/47 46. 75. NW

10/28/48 46. 75. NE

04/19/49 46. 65. E

03/18/50 46. 75. NW

31 .00

61 .39

8.67

46.44

86.24

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

56.

54.

55.

53.

60.

56.

54.

57.

63.

53.

60.

56.

59.

59.

58.

62.

62.

46.

86.

63.

56.

56.

63.

73.

83.

65.

63.

71 . 71 . 62.

7 1.
a. • o

Q > cr lu uj a

(- Q UJ < n CM <* -<

•* oo - * — CO og in

00 o> (\j -1 — in N\0 \0 0^ N n CO 03

vO flO o> — 0^ o in n vo in

<»• CO m in

(\J N CO a>

CD n

in * N >o N o t\J <» >o

CO « in ro oo >o N C (D CO N

»«fM(\i(\if\j cMcvinn-* •*-*-*inin inininioo nncocdoo coooo^o\o O ^ « _ — -« CO <t >0

a. • o

Q > a

UJ UJ K

O UJ

I- <

uj in

toino>o>in o^-<-<-<ro oionn-* coo-H-<in cvjcon-h *inina>s ^intMso* oo-hkco •* ^NOi-^ro *ior>-(D* comocvj* inNooa>in a>-H*int«- coo>o<oo ninsooov — ojsnto in -«rt-»<\jcy cvjcvipjcMr) nn*** * * <t ^ in in«^'0<0 tO^NNCO COCDCSCOOO p> o> o — C\J

LU5

UJ z

a o

t-X Q

UJ UJin Q <

UJ CD

tUJa

>H ZO

UJ l-H

< m

> «-i

UJ tUJ >-i Q

h-X

UJ

vO •* >0 N

O (O (M o

in vo * o

vo vo in n •* in N vo in m in m (7> c\j in 01 ro N N n CM -H CO N

n -o •* cvj -<

vo vo <\i in >o

in 00 t\j in ro -< o o

O CO

CO >o *

CO <t N 00 N o <t s in o

>o 10 \o in cji o n vo 00 o

\^ \^ \Q \Q o -< (\j n (0 N N N N N

-< — in -* vO

CO 00 OO 00 oo N CO a o> *

CD CO CO 00 0> N a> — CM ro a o> o o o

in lO n

O O O ^

ui s CO c:> o

M ^ w ^ c\j -« f\j n oo (7>

cvi CM n r) •*

Q

z

* -I<

UJ z

T. «

UJ H

au

X

UJ zo

Q

o UJ

UJ z

(J W UJ « < q: Q m (-

UJ X

a. hi a

o

o

oo

2 O

o • •I 1^ t-m

(£W II Q <

z

z

<

(7>n-*on -tcoocvj-^ ito^fooo rtCMrocMin * N in o> in

>* N r^) >o >o in in o>ro oo -H o\

00 CO o -< in

CM CM in CM in

CM CO s

>o <

in (M 00 n -«

o> ro o r) in N 00

in to 4) \o ^ o CM m oN N N r- N

n JO >o CO o

CO CO CO oo

CM ro in *

01 0> 0> ffi o

O * N O CM

-H ^ CM fvj * CO CJi N

CM CM CM ro *

CM N N

in in >o >o lO

0> <t N lO N

<0 CM CO 0>

(Ji CM eg ro o^

\0 « 10 CO

-H -< CM CM CiJ

a

o

tr in

UJ X

Cl.< ooooo ooooo ooooo ooooo ooooo ooooo ooooo ooooo o

UJ (tttt ttitt • t t<.>> • z>- tMrO'^iniO N00OOC5 o-iooo ooooo ooooo ooooo ooooo ooooo o

a -Hcg roro^'inio soooioo ooooo ooooo ooooo ooooo o DZ -^cMro^tinvONCDOioooooooooooooo rtCMro*invONco(^ooooo

UJ in o o o

q: in o

241
GREENVILLE. S.C. (1942-IS77)

THE SAMPLE NUMBER OF OBSERVATIONS = 36.00

THE SAMPLE MEAN = 48.46

THE SAMPLE STANDARD DEVIATION = 11.01

THE SAMPLE MINIMUM = 31.67

THE SAMPLE MAXIMUM = 71.89

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATIONS

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

L1 ^p/m/^p r yj -J r •t^ O V . n o o . O . MIN O o .

. o o . M O o .

IV AO.

r O . IN < ^ . oo . o & . O 1 . 7 P « oo . IN W o o •

IN A* Ao -. oo . O U . MIN o ^ . •OO . o ^ . o w O . OO . OO . c O O . 08/17/54 64 • 70 . SE 63 . 03/22/55 64. 63. NW 57.

04/07/56 64. 56. W 51 « 12/20/57 64. 50. sw 45.

04/22/58 64. 52. NW 47.

0 1/21/59 64. 35. SW 32.

03/22/60 23. 37. w 39.

03/08/61 23. 42. SW 45.

03/12/62 23. 47. w 50.

12/31/63 23. 47. NE 50.

1 2/25/64 23. 43. SE 46.

02/25/65 23. 36. W 38.

07/15/66 23. 57. NE 6 1.

01/27/67 23. 44. SW 47.

12/16/68 23. 34. NW 36.

06/09/69 23. 35. NW 37.

04/02/70 23. 44. SW 47.

12/03/71 23. 34. NE 36.

04/12/73 23. 34. W 36.

04/12/73 23. 36. w 38.

04/02/74 23. 40. SW 43.

04/ 19/75 23. 33. SW 35.

02/18/76 23. 30. s 32.

04/05/77 23. 32. w 34.

2^2
RETURN PERIOD

(IN YEARS)

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

20.0

30.0

36. 0

40.0

50.0

60.0

70.0

80.0

90.0

100.0

200.0

300.0

400.0

500. 0

600.0

700.0

800.0

900.0

1000.0

2000.0

3000.0

4000.0

5000.0

6000.0

7000.0

8000.0

9000.0

10000.0

50000.0

100000.

500000.0

1 000000.0

PREDICTED EXTREME W BASED ON

EXTREME VALUE TYPE

DI STRI BUTION

46.75

51 .56

54.64

56.92

58.73

60.24

61.52

62.65

63.65

70. 1 1 73.82

75.48

76.44

78.47

80. 12

81.51

82.72

83.78

84.73

90.97

94.61

97.20

99. 20

100.84

102.22

103.42

104.48

105.42

111 .64

115.28

117.86

119.87

121.50

122.88

124.08

125. 14

126. 08

140.52

146.74

161.19

167.41

NO ESTIMATED

STAN. DEV.

1 SAMPL. ERROR

CRAMER-RAO

1 .63

2. 06

2.35

2.58

2.77

2.93

3.07

3.20

3.31

4. 05

4.48

4.68

4.79

5.03

5.23

5.40

5.54

5.67

5.78

6.54

6.98

7.30

7.54

7.74

7.91

8. 06

8. 19

8.30

9.07

9.51

9.83

10.08

10.28

10.45

1 0.60

10.73

10.84

12.63

13.39

15.18

15.95

ESTI MATED

STAN. DEV.

SAMPL, ERROR

METH, OF MOM.

1 . 68

2. 14

2.53

2.84

3.10

3.32

3.51

3.68

3.83

4.84

5.43

5.70

5.85

6. 18

6.45

6.68

6.87

7.05

7.20

8.22

8.82

9.25

9.58

9.85

10.08

10.28

10 . 45

10.61

11 .64

12.24

12. 67

13.01

13.28

13.51

13.71

13. 88

14. 04

16.44

17.48

19.89

20.93

243
HURON. S.D. C 1939-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = THE SAMPLE MEAN = THE SAMPLE STANDARD DEVIATION = THE SAMPLE MINIMUM = THE SAMPLE MAXIMUM =

DATE ANEMOMETER FASTEST MILE WIND SPEED

ELEVATION(FT) AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

05/23/39 41 . 70. NE

1 1/11/40 41 . 61 . N

05/07/41 41 . 59. NW

05/29/42 41 . 70. NW

10/19/43 41. 59. SE

03/06/44 41 . 66. NW

04/08/45 41. 54. S

02/05/46 41 . 52. N

09/27/47 41 . 59. SE

02/19/48 41 . 56. NW

10/10/49 41 • 72. W 05/05/50 41 . 61 . NW

04/30/541 . 68. SE

07/06/52 41 . 72. SW

03/18/53 41. 68. N W

1 1/23/54 41 . 73. NW

04/03/55 41 . 73. SE

07/06/56 41 . 73. NW

07/03/57 41 . 77. NW

1 1/25/58 41 . 58. NW

07/03/59 41 . 58. N

06/19/60 41 . 65. SE

07/25/61 41 . 65. SW

05/23/62 20. 65. NW

12/08/63 20. 59. NW

09/23/64 20. 57. NW

03/17/65 20. 47. NW

03/04/66 20. 54. NW

0 1/16/67 20. 57. NW

08/07/68 20. 72. NW

07/ 14/69 20. 56. NW

12/03/70 20. 42. NW

10/18/71 20. 45. S

02/17/72 20. 50. NW

07/01/73 20. 46 . NW

07/02/74 20. 70. SW

07/31 /75 20. 56. SE

04/16/76 20. 54. SW

39.00

61 .39

8. 13

45.97

78.81

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

68.

59.

57.

68.

57.

64.

52.

50.

57.

54.

69.

59.

66.

69.

66.

70.

70.

70.

74.

56.

56.

63.

63.

71 . 65.

62.

51 . 59.

62.

79.

61 . 46.

49.

55.

50.

77.

6 1 . 59.

244
11/20/77 20. 45. NW 49.

2^5
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DI STRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6.0

60. 13

63.65

65.90

67.56

68.89

1.19

1.46

1 .67

1 .83

1 • 96

1.19

1.52

1 .79

2. 01

2.20

7.0

8.0

9.0

10.0

20.0

69.99

70.93

71.76

72.49

77.21

2.08

2.18

2.27

2.35

2.87

2.35

2.49

2.61

2.72

3.43

30.0

39.0

40.0

50.0

60.0

79.93

81 .68

81 .84

83.32

84. 53

3.18

3.38

3.40

3.57

3.71

3.85

4.13

4.15

4.38

4.57

70.0

30.0

90.0

100.0

200.0

85.55

86.43

87.21

87.91

92.47

3.83

3.93

4.02

4.10

4.64

4.74

4.87

5.00

5 . 11

5.83

300.0

400. 0

500. 0

600.0

700.0

95. 14

97. 03

98.49

99.69

100.70

4.95

5.18

5.35

5.49

5.61

6.26

6.56

6 .80

6.99

7.15

800. 0

900.0

1000.0

2000.0

3000.0

101.58

102.35

103.04

10 7.59

110.25

5.71

5. 81

5.89

6.43

6.75

7.29

7.41

7.53

8.26

8.68

4000.0

5000.

6000.

7000.0

8000.0

1 12. 14

113.61

114.80

1 15. 82

1 16.69

6.97

7.15

7.29

7.41

7.52

8.99

9.22

9.42

9.58

9.72

9000.0

10000.

50000.0

100000.0

500000.0

117.46

118. 16

128.72

133.26

143.83

7.61

7.69

8.95

9.50

1 0.77

9.85

9.96

1 1 .66

12.40

14. 1

1 000000.0 148.38 1 1.31 14.84

2^5
RAPID CITY.S.D, (1942-1977), REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 36.00

THE SAMPLE MEAN = 60.99

THE SAMPLE STANDARD DEVIATION = 5.32

THE SAMPLE MINIMUM = 49.22

THE SAMPLE MAXIMUM = 70.48

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

09/25/42 63. 73. NW 66.

06/26/43 63. 72. SW 65 . 07/09/44 63. 70. sw 63.

01/14/45 63. 66. NW 60 . 01/23/46 63. 66. NW 60.

02/07/47 63. 75. NW 68.

08/13/48 63. 72. SW 65.

01/04/49 63. 73. NW 66.

03/26/50 63 . 72. NW 65.

08/01/51 32. 65. NW 65.

01/21/52 32. 61 . NW 61 . 03/23/53 32. 65. W 65.

03/24/54 32. 53. NW 53.

12/23/55 32. 60. W 60.

03/28/56 32. 49. NW 49.

05/25/57 32. 54. N 54.

02/28/58 32. 50. NN 50 . 07/15/59 32. 66. SN 66.

06/20/60 32. 56. NN 56.

1 1/02/61 32. 59. NN 59.

06/14/62 32. 54. SN 54.

04/16/63 32. 52. M 52.

09/25/64 32. 61. NW 6 1 . 01/31/65 32. 57. NW 57.

1 1/29/66 21 . 59. NW 64.

01/22/67 21. 65. SW 70.

01/20/68 21. 56. NW 6 1.

12/22/69 21 . 56. NW 6 1.

02/03/70 21 . 59. NW 64.

10/03/71 21 . 59. N W 64.

02/16/72 21 . 56. NW 61.

03/14/73 21 . 56. NW 6 1.

02/08/74 21 • 49. NW 53.

06/09/75 21 . 57. NW 62.

05/12/76 21 . 57. NW 62.

01/07/77 21 • 63. NW 68.
RETURN PERIOD

(IN YEARS)

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

20.0

30.0

36.0

40.0

50.0

60.0

70.0

80.0

90.0

100.0

200.0

300.0

400.0

50 0.0

600.0

700. 0

800. 0

900.0

1000.0

2000.0

3000.0

4000.0

5000.0

6000.0

7000.0

8000.0

9000.0

10000.0

50000.0

100000.

500000.0

1000000.0

PREDICTED EXTREME W BASED ON

EXTREME VALUE TYPE

DISTRIBUTION

60.21

62. 40

63. 80

64. 83

65.66

66.34

66. 92

67.44

67.89

70.82

72.51

73.27

73.70

74.62

75.37

76. 01

76.55

77. 04

77.47

80.30

81 .96

83. 13

84. 04

84.79

85.42

85. 96

86.44

86.87

89.70

91.35

92.52

93.43

94. 18

94. 81

95.35

95.83

96.26

102. 82

1 05.65

112.21

1 15. 04

ND ESTIMATED

STAN. DEV.

1 SAMPL. ERROR

CRAMER-RAO

• 81

. 99

1 . 13

1 .25

1 .34

1 .42

1.43

1 . 54

1.60

1 .95

2.16

2.26

2.31

2.43

2.53

2.61

2.68

2.74

2.79

3. 16

3.37

3.52

3.64

3.74

3. 82

3.89

3.95

4.01

4.38

4.59

4. 75

4.87

4.96

5. 05

5. 12

5. 18

5.24

6.10

6.47

7.33

7.71

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

• 81

1 .03

1.22

1 .37

1 .50

1 .60

1.69

1 .78

1 .85

2.34

2.62

2.75

2.83

2.99

3.12

3.22

3.32

3.40

3.48

3.97

4.26

4.47

4.63

4.76

4.87

4.96

5.05

5.12

5.62

5.91

6 .12

6.28

6.41

6 .52

6.62

6.71

6.78

7. 94

8.44

9.61

10.11

2^8
CHATTANOOGA.TENN, (1941-1975)

THE SAMPLE NUMBER OF OBSERVATIONS = 35.00

THE SAMPLE MEAN = 47.83

THE SAMPLE STANDARD DEVIATION = 10.43

THE SAMPLE MINIMUM = 36.12

THE SAMPLE MAXIMUM = 75.93

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

07/31/41 54. 40. W 37.

06/28/42 54. 48. s 4 4.

01/19/43 54. 50. NW 46 . 03/27/44 54. 50. NW 46.

04/ 16/45 54. 40. SM 37.

02/13/46 54 . 72. SW 67 . 03/24/47 54 . 82. w 76.

03/02/48 54. 62. w 57 . 06/05/49 54. 62. NE 57 . 03/27/50 54 . 45 . S 42.

05/02/51 54. 63. NW 58 . 02/29/52 54. 63. W 58.

06/13/53 54. 67. NW 62.

02/16/54 54. 49. NW 45.

04/24/55 54. 50. SW 46 . 02/25/56 54. 57. W 53.

04/08/57 54. 57. w 53.

02/28/58 54. 52. SM 48.

01/21/59 54. 59. SW 55.

06/24/60 54. 45. SW 42.

04/28/61 54. 45. w 42.

04/13/62 54. 42. NW 39.

1 1/30/63 54. 41. NW 38.

03/04/64 54. 54. SW 50.

05/18/65 20. 43. NW 47.

07/15/66 20. 38. NE 42.

04/24/67 20. 36. N 39.

12/28/68 20. 34. SW 37.

05/10/69 20. 33. NW 36.

08/18/70 20. 35. SW 38.

02/22/71 20. 33. SW 36.

01/25/72 20. 36. NW 39.

06/15/73 20. 38. SW 42.

01/28/74 20. 66. w 72.

03/24/75 20. 42. SW 46.

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250
KNOXVILLE.TENN. (1942-1974)

THE SAMPLE NUMBER OF OBSERVATIONS

THE SAMPLE MEAN

THE SAMPLE STANDARD DEVIATION

THE SAMPLE MINIMUM

THE SAMPLE MAXIMUM

DATE ANEMOMETER FASTEST MILE WIND SPEED

ELEVATION(FT) AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

07/10/42 53. 47. NW

09/15/43 53. 56. W 04/11/44 53. 71 . SW

06/14/45 71. 56. sw 02/10/46 71 . 47. SM

03/24/47 71 • 61 . SW

06/24/48 71 . 65. w 01/19/49 71 . 43. sw 04/04/50 71 . 50. w 06/22/51 71. 54. NW

05/10/52 47. 59. SW

04/30/53 73. 62. sw 07/05/54 73. 56. w 01/13/55 73. 56. SW

04/15/56 73. 69. w 04/08/57 73. 50. W 02/28/58 73. 61. sw 01/21/59 73. 60. SW

04/26/60 73. 61. sw 02/25/61 73. 60. sw 01/06/62 73. 53. sw 03/11/63 73. 59. w 03/10/64 20. 41. sw 03/25/65 20. 40. NW

04/30/66 20. 38. w 02/16/67 20. 35. w 12/28/68 20. 38. sw 03/24/69 20. 47. sw 06/18/70 20. 46. N

03/19/71 20. 34. w 05/19/72 20. 38. NE

12/13/73 20. 38. w 04/04/74 20. 46. W

33.00

48.84

6.88

37.22

65.91

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)-

44.

52.

66.

50.

42.

54.

58.

38.

45.

48.

56.

55.

50 . 50 . 61.

45.

54.

53.

54.

53.

47.

53.

45.

44.

42.

38.

42.

51 . 50 • 37.

42.

42.

50.

251
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6.0

47.78

50.79

52. 71

54. 13

55.26

1.10

1 .34

1 .53

1 .68

1 .81

1.10

1 .40

1 .65

1 .85

2.02

7.0

8. 0

9.0

10.0

20.0

56.20

57. 00

57.71

58.33

62.36

1 .91

2.00

2. 09

2. 16

2.64

2.16

2.29

2.40

2.50

3.16

30.0

33.0

40.0

50.0

60.0

64.68

65.22

66.31

67.57

68. 60

2.92

2.99

3. 13

3.28

3.41

3.55

3.64

3.82

4.03

4.21

70.0

80.0

90.0

100.0

200.0

69. 47

70. 23

70.89

71 .48

75.38

3.52

3.62

3.70

3.77

4.27

4.36

4.49

4.60

4.70

5.37

300. 0

400.0

500.0

600.0

700. 0

77.65

79. 26

80.52

81 .54

82. 40

4.56

4.76

4.92

5. 05

5. 16

5.76

6. 04

6.25

6.43

6.58

800.0

900.0

1000.0

2000.0

3000.

83. 15

83. 81

84. 40

88. 28

90.55

5.26

5.34

5.42

5.92

6.21

6.71

6.82

6.92

7.60

7.99

4000.

5000.0

6000.0

7000.0

8000.0

92. 16

93.4 1 94.43

95.29

96. 04

6.41

6.58

6.71

6.82

6.91

8.27

8.49

8.66

8.81

8.94

9000.0

10000.

50000.

100000.0

500000.0

96.7 0

97. 29

106. 30

110.18

1 19. 20

7.00

7. 08

8.24

8. 74

9.91

9.06

9.16

10 .73

11.41

12. 98

1 000000.

123. 08 10.41 13.65

252
MEMPHiS.TENN. (1951-1971)

THE SAMPLE NUMBER OF OBSERVATIONS = THE SAMPLE MEAN = THE SAMPLE STANDARD DEVIATION = THE SAMPLE MINIMUM = THE SAMPLE MAXIMUM =

21 .00

45.43

6.24

37.30

6 0.74

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

06/07/51

03/22/52

05/11/53

12/05/54

10/28/55

02/25/56

04/03/57

04/24/58

11/24/59

05/20/60

03/08/61

07/06/62

07/17/63

07/11/64

02/11/65

11/10/66

08/03/67

09/09/68

07/02/69

04/19/70

04/23/71

55.

55.

55.

55.

55.

55.

55.

55.

23.

23.

23.

23.

23.

23.

23.

23.

23.

23.

23.

23.

23.

50. S

54. S

50. NM

43.

47.

46.

44.

46.

45.

35.

39.

38.

43.

38.

N

W

S

S

NW

35. NW

Ww NE

N

56. NW

42. NE

47. SE

45. NW

57. W 46. W

46.

50.

46.

40.

43.

42.

41 • 42.

37.

48.

37.

42.

40.

60.

46.

40.

45.

50.

48.

61.

49.

253
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254
NASHVILLE, TENN. (1942-1975). REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = THE SAMPLE MEAN = THE SAMPLE STANDARD DEVIATION = THE SAMPLE MINIMUM = THE SAMPLE MAXIMUM =

DATE ANEMOMETER FASTEST MILE WIND SPEED

ELEVATION(FTi AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

06/13/42 73. 49. W 02/26/43 73. 47. NW

06/14/44 73. 42. W 03/26/45 73. 47. s 12/29/46 57. 42. w 03/24/47 57. 56. M 07/22/48 42. 58. NM

0 1/27/49 42. 56. sw 05/29/50 42. 47. NM

06/22/51 42. 57. W 06/30/52 42. 71. NW

06/13/53 42. 73. NW

08/02/54 42. 42. N

04/24/55 42. 52. W 02/17/56 42. 47. NW

07/09/57 42. 42. N

04/27/58 42. 61 . W 01/20/59 42. 42. S

06/29/60 42. 51. N

05/08/61 42. 43. SW

02/27/62 42. 49. NW

07/07/63 39. 52. NW

06/15/64 39. 47. NW

07/02/65 25. 47. NW

07/07/66 25. 50. NW

02/15/67 25. 36. SW

04/04/68 25. 42. SW

07/27/69 25. 42. W 03/03/70 25. 38. SE

12/10/71 25. 42. S

04/07/72 25. 46. NW

12/26/73 25. 37. SW

03/29/74 25. 35. w 01/10/75 25. 42. s

34.00

46.78

8.03

36.72

70.15

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

44.

42.

37.

42.

39.

51 . 56.

54.

45.

55.

68.

70.

40.

50 . 45.

40 . 59.

40 . 49.

41 . 47.

51.

46.

49.

52.

38.

44.

44.

40 . 44.

48.

39.

37.

44.

255
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ABILENE. TEXAS (1944-1977). REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = THE SAMPLE MEAN = THE SAMPLE STANDARD DEVIATION = THE SAMPLE MINIMUM = THE SAMPLE MAXIMUM =

DATE ANEMOMETER FASTEST MILE WIND SPEED

ELEVATION(FT) AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

06/05/44 59. 50. N

06/09/45 59. 59. SW

03/07/46 59. 66. NW

03/14/47 59. 61 . N

02/26/48 59. 44. W 05/25/49 58. 73. N

05/13/50 58. 66. NE

06/10/51 58. 109. NW

03/21/52 58. 61. NW

03/26/53 58. 71. S

05/06/54 60 . 61 . NW

06/29/55 60. 58. S

02/24/56 60. 60. NW

05/08/57 60. 54. W 04/20/58 60. 49. NW

06/11/59 60. 47. SW

02/09/60 60. 52. w 06/04/61 20. 57. NE

06/09/62 20. 46. NW

06/19/63 20. 55. NW

08/20/64 20. 4i5. NW

12/23/65 20. 54. W 03/22/66 20. 41 . NW

01/06/67 20. 42. N

05/10/68 20. 45. NW

06/23/69 20. 47. N

04/26/70 20 . 50. SW

10/22/71 20. 58. NE

06/28/72 20. 51. NE

03/10/73 20. 49. SW

04/10/74 20. 42. S

06/09/75 20. 54. N

04/15/76 20. 49. SE

02/23/77 20. 42. W

34.00

54.72

10.48

40.25

99.94

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

46.

54.

60.

56.

40.

67.

62.

100.

56.

65.

56.

53.

55.

49.

45.

43.

47.

62.

50.

60.

50.

59.

45.

46.

49.

51 . 55.

63.

56.

54.

46.

59.

54.

46.

257
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259
AMARILLO, TEXAS (1941-1974}. REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 34.00

THE SAMPLE MEAN = 61.00

THE SAMPLE STANDARD DEVIATION = 7.13

THE SAMPLE MINIMUM = 47.95

THE SAMPLE MAXIMUM = 80.72

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

04/13/442. 60. s 58.

04/30/42 42. 74 . sw 71.

02/09/43 42. 68. s w 65 . 05/31 /44 42 . 60 . w 58.

04/ 10/45 42. 61. s wo/ AO/"T»J 42 . 65 . E 6 2 « 05/14/47 42. 72. w 69.

0 7/16/4 a 42 . 66. SW 63.

05/ 15/49 42 . 84 . s w 8 1 « 03/26/50 42 o 72 . w 69 . 42 . 56. s w 54 « oo . Vt O J • 05/10/53 42. 66. w 63.

02/19/54 42. 57. N 55.

10/23/55 42. 63. N 61.

02/24/56 42. 70. NW 67.

03/24/57 33. 59. NW 59.

07/12/58 33. 56. W 56.

03/14/59 33. 54. sw 54.

02/09/60 33. 66. w 66.

06/02/61 23. 45. SE 48.

03/24/62 23. 52. N 55.

03/18/63 23. 63. W 67.

06/11/64 23. 47. SW 50.

09/09/65 23. 52. SE 55.

05/08/66 23. 46. NE 49.

01/06/67 23. 54. NW 58.

04/19/68 23. 50. W 53.

06/07/69 23. 59. NW 63.

1 1/08/70 23. 59. NW 63.

06/05/71 23. 54. SW 58.

06/21/72 23. 64. NE 68.

03/13/73 23. 65. SW 69.

08/09/74 23. 60. NW 64.

260
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTI MATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6.0

59.90

&3. 01

64.99

66.47

67.64

1.12

1 .37

1 .57

1 .72

1 .85

1.12

1 .43

1 .68

1 .89

2.06

7.0

8.0

9.0

10.0

20.0

68.61

69.44

70. 17

70. 81

74.<98

1 .95

2. 05

2.13

2.20

2.70

2.21

2.34

2.45

2.55

3.23

30.0

34.0

40.0

50.0

60.0

77.38

78. 12

79.07

80.38

81 .45

2.99

3.0 8

3.19

3.35

3.49

3.62

3.74

3.90

4.12

4.30

70.0

80.0

90.0

100.0

200. 0

82.35

83. 13

83. 81

84.43

88.45

3.60

3.69

3.78

3. 86

4.36

4.45

4.58

4.70

4.80

5.48

300.0

40 0.0

500.0

600.0

700.0

90.81

92.48

93.77

94. 83

95.72

4.65

4. 86

5.03

5. 16

5.27

5.88

6. 17

6.39

6.57

6.72

800.0

900.0

1000.0

2000.0

3000.0

96.50

97. 18

97.79

101.81

104. 16

5.37

5.46

5.53

6. 04

6.34

6. 85

6.97

7.07

7.76

8. 16

4000.0

5000.0

6000.0

7000.0

8000.0

105. 82

107. 12

108. 17

109. 07

109. 84

6.55

6.72

6.85

6.96

7. 06

8.45

8.67

8.85

9.00

9.14

9 00 0.0

10000.0

50000.0

100000.0

500000.

110.52

111.13

120.45

124.47

133. 80

7.15

7.23

8.41

8.93

10.12

9.25

9.36

10.96

1 1 .65

13.26

1 000000.0 137. 82 10.63 13.95

261
AUSTIN.TEXAS ( 1943-1977J

THE SAMPLE NUMBER OF OBSERVATIONS = 35.00

THE SAMPLE MEAN = 45.06

THE SAMPLE STANDARD DEVIATION - 5.48

THE SAMPLE MINIMUM = 31.14

THE SAMPLE MAXIMUM = 58.02

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT> AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

0 1/25/43 41 . 40. N 39.

05/01 /44 41 . 49. SE 47.

05/12/45 41 . 45. SW 43.

05/31 /46 41. 52. NE 50 . 02/07/47 41 . 57. N 55.

0 1 /23/48 41 . 44. N 42.

04/15/49 41 . 40. NE 39.

05/31/50 41 . 43. S 4 1.

1 1/05/5

41 . 48. NW 46.

09/17/52 41 . 41 . N 40 • 12/02/53 41 . 47. W 45.

02/27/54 41. 45. N 43.

03/25/55 41. 42. N 41.

02/17/56 41. 52. NW 50.

04/26/57 41 . 44. NE 42.

02/26/58 32. 31. W 31 . 08/31/59 32. 47. N 47.

04/02/60 32. 36. NE 36.

09/11/61 20. 45. NE 49.

01/05/62 20. 47. N 51 . 02/02/63 20. 45. N 49.

03/09/64 20. 38. NW 42.

05/17/65 20. 40. SE 44.

06/13/66 20. 43. NW 47.

1 0/29/67 20. 47. NW 5 1.

12/27/68 20. 42. W 46.

08/14/69 20. 53. NW 58.

03/16/70 20. 38. NW 42.

02/21/71 20. 43. NW 47.

05/01/72 20. 49. N 54.

01/28/73 20. 38. NW 42.

05/31/74 20. 42. N 46.

05/23/75 20. 40. E 44.

05/12/76 20. 41. NW 45.

09/19/77 20. 38. NE 42.

262
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTI MATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH, OF MOM,

2.0

3.0

4.0

5.0

6.0

44.22

46. 59

48. 12

49.24

50. 14

.85

1 . 04

1.19

1 .30

1 .40

.85

1 .08

1 .27

1 .43

1 . 56

7.0

8.0

9.0

10.0

20.0

50.88

51.52

52.08

52. 57

55.76

1 .48

1 .55

1 .61

1 . 67

2. 04

1 .67

1 .77

1 .86

1 .93

2.44

30.0

35.0

40.0

50.0

60.0

57.60

58. 29

58.89

59. 89

60.71

2.26

2.35

2.42

2.54

2.64

2.74

2.86

2.96

3.12

3.26

70.0

80. 0

90.0

100.0

200.0

61 .40

62.00

62.52

62.99

66.08

2.72

2.80

2. 86

2.92

3.30

3.37

3.47

3.56

3.64

4. 15

300.0

400.0

500.0

600. 0

700. 0

67.88

69. 15

70. 14

70.95

71.64

3.53

3.68

3.81

3.91

3.99

4.46

4.67

4. 84

4.97

5.09

80 0.0

900.0

1 000.0

2000.0

3000.0

72.23

72.75

73.22

76.30

78.09

4. 07

4. 13

4.19

4.58

4. 80

5.19

5.28

5.36

5.88

6.18

4000.

5000.

6000.0

7000.0

8000.

79.37

80.36

81.17

81 . 85

82.44

4.96

5. 09

5.19

5.28

5.35

6.40

6.57

6.70

6. 82

6.92

9000.0

10000.0

50000.0

100000.

500000.0

82.97

83.43

90.57

93.64

100.79

5.42

5.47

6.37

6.76

7.67

7.01

7.09

8.30

8.82

10 .04

1 000000.

103.86 8. 05 10.56

263
BROWNSVILLE, TEXAS (1943-1S77) CAUTION SEE APPENDIX 1 AND SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 35.00

THE SAMPLE MEAN = 43.68

THE SAMPLE STANDARD DEVIATION = 8.07

THE SAMPLE MINIMUM = 32.24

THE SAMPLE MAXIMUM = 66.06

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION! GROUND (CORRECTED SPEED)

05/28/43 56 e 38. SE 35.

04/02/44 56 . 4 8. N 4 4.

Qfl /?6 /A 5 56 . 57. N W 5 3.

041. /"^O /A <S 56 . 47. E 4 3.

57«j •. SE 53 . 03 / 1 /A fl 56 . 42 • s 39 . OA/"?0 /AQ 56 37. SE 34 . OR/IQ /'=;o WW . A 7 • c A3.

Ol / 1A/S1 A O « N W 37 - n 9 / p*^ /"=; ? Rft . A 5 • N A 1 . Ol I'^/R"^? . A 3 - c AO.

(JO / ilD O . C f O . 01/18/55 56. 42. NW 39.

03/07/56 56. 45. N 4 1.

1 1/07/57 56. 35. N 32.

04/08/58 56. 43. SE 40.

04/27/59 56. 36. S 33.

04/13/60 56. 52. SE 48.

04/30/6

43. 44. SE 42.

05/01/62 43. 39. E 37.

1 1/08/63 43. 40. NW 38.

03/09/64 43. 40. NW 38.

02/24/65 43. 55.' NW 53.

11/01/66 43. 38. N 36.

09/20/67 43. 69. NE 66.

05/04/68 43. 66. NW 63.

05/12/69 43. 59. E 56.

01/29/70 43. 36. N 34.

03/02/71 43. 45. N 43.

04/28/72 20. 47. SE 51.

03/13/73 20. 42. SE 46.

04/10/74 20. 40. S 44.

05/25/75 20. 42. SE 46.

02/17/76 20. 38. S 42.

06/21 /77 20. 45. SE 49.

264
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265
CORPUS CHRISTI, TEXAS (1943-1976) CAUTION — SEE APPENDIX 1 AND SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 34.00

THE SAMPLE MEAN = 54.50

THE SAMPLE STANDARD DEVIATION = 15.66

THE SAMPLE MINIMUM = 43.69

THE SAMPLE MAXIMUM = 127.88

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION( FT ) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

0 1 04/43 31. 59. NE 6 0.

49 . SE 49 .

1 - 70t v -. N r X . 31. 5 0, N.W 5 0,

65. NW 6 6.

31. 47 . N 4 7.

0 2/ 13/4 9 31. 4 8. SE 4 8.

-J X . 56 . s 5 7. w X . 54 . SE 5 5.

Q 5/ 2a / 52 31. 50, W 5 0.

X . 45 . s 4 5.

Ox. <f o . IN *f o . 10/07/55 31 . 4^. N 46.

03/07/56 24. 42. N 44 . 03/24/57 24. 45. W 48.

01/05/58 24. 42, NE 44.

12/31/59 24. 42. SE 44.

10/16/60 23. 42. NE 45.

09/11/61 23. 63. NW 67.

06/01/62 23. 56. SE 60.

04/16/63 23. 48. SE 51.

03/09/64 23. 45. NW 48.

02/24/65 23. 42. N 45.

04/14/66 23. 45. S 48.

09/20/67 23. 72. E 77.

03/11/68 23. 45. NW 48.

12/06/69 23. 42. W 45.

08/03/70 23. 120. SW 128.

09/ 10/7 1 23. 66. NW 70.

04/28/72 23. 47. SE 50.

04/15/73 23. 43. SE 46.

05/26/74 23. 54. N 58.

05/24/75 23. 49. SE 52.

04/29/76 23. 41 . N 44.

266
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267
DALLAS, TEXAS (1941-1972)

THE SAMPLE NUMBER OF OBSERVATIONS = 32.00

THE SAMPLE MEAN = 49.14

THE SAMPLE STANDARD DEVIATION - 6.45

THE SAMPLE MINIMUM = 39.41

THE SAMPLE MAXIMUM = 66.77

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

no y ^ o i

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(Joy y ** V A A a C A A

0 1 /24/50 45 . 45. S 4 3.

03/02/51 45. 50. s 48.

04/12/52 45- 52. sw 49.

05/11/53 45. 48. s 46.

06/ 15/54 45. 65. N 62.

06/08/55 45. 49. w 47.

04/ 14/56 45. 54. w 51.

05/23/57 45. 50. w 48.

02/26/58 45. 57. sw 54.

08/30/59 20. 47. N 5 1.

10/13/60 20. 61 . NW 67.

04/30/620. 54. N 59.

04/10/62 20. 42. N 46.

04/28/63 20. 42. NW 46.

01/30/64 20. 45. SE 49.

1 0/15/65 20. 39. SE 43.

0 1/01 /66 20. 50. W 55 . 06/11/67 20. 53. SE 58.

03/1 1/68 20. 45. NE 49.

0 1/22/69 20. 36. W 39.

04/25/70 20. 42. NW 46.

12/14/71 20. 36. SW 39.

06/21/72 20. 47. NW 51 .

268
EXTREME VALUE ANALYSIS

THE SAMPLE SIZE N = 32

THE SAMPLE MEAN = 49.1358662

THE SAMPLE STANDARD DEVIATION = 6.4456284

THE SAMPLE MINIMUM = 39.4070892

THE SAMPLE MAXIMUM = 66.7731237

EXTREME VALUE PROBABILITY PLOT LOCATION SCALE

TYPE 2 TAIL LENGTH CORRELATION ESTIMATE ESTIMATE

PARAMETER (GAMMA) COEFFICIENT

1 .00 .77827 46^6776557 .5857531

2.00 •92806 41 .5944028 4.6703537

3.00 .966 0 9 36. 1234212 9.9250727

4.00 .97961 30.6735301 15.3300055

5.00 •98568 25.2582979 20.7424667

6.00 .98884 19.8672862 26. 1422174

7.00 .99065 14.4924254 31.5285747

8.00 .99177 9. 1285863 36.90391 16

9.00 .99250 3 .7725177 42.2706208

10.00 .99300 -1 .5778933 47.6306081

1 1 .00 .99334 -6 .9240746 52.9853253

12.00 .99359 -12.2670131 58.3358560

13.00 .99377 -1 7.6074181 63.683021

14.00 .99390 -22.9458017 69.0274467

15.00 .99400 -28.2825527 74.3696146

16.00 .99408 -33.6179619 79.7099037

17.00 .99414 -38.9522638 85.0486164

18.00 •99418 -44.2856274 90.3859873

19.00 .99422 -49.6182098 95.7222195

20.00 . 99424 -54.950 1152 101.0574636

21.00 .99426 -60 .2814369 1 06.391 8505

22.00 .9 94 28 -65.6122570 1 1 1 .7254925

23.00 .99429 -70 .9426403 1 1 7.0584812

24.00 .99430 -76 .2726326 122.3908901

25.00 .99430 -81 .6022911 27.7227688

30.00 .99431 MAX -108.2466297 1 54.3762989

35.00 .99429 -134.8864555 18 1.0228710

40.00 .99427 -161 .5234261 207.6650085

45.00 .99425 -1 88. 1 584873 234.3041515

50.00 .99423 -214.7922440 260.9412079

60.00 .99420 -268. 05701 07 314.2110023

70.00 .99417 -321 .3194809 367.4771 042

80.00 .99415 -374.5805244 420.7408981

90.00 .99413 -427.8405418 474.0030861

1 00.00 .9941

-481 .0999146 527.2641907

150.00 .99405 -747.391 1591 793.5607071

200.00 •99402 -1013.6783295 1059.8505554

250.00 .99401 -1279 .9641876 1326. 1380463

350.00 .99398 -1812.5334167 1858.7091522

500.00 .99397 -261 1 .3830566 2657.5602417

750.00 •99395 -3942.8013916 3988.9797668

1000.00 •99394 -5274 .2 183228 5320.3972778

INFINITY •99392 46 .1802206 5.3256643

259
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270
EL PASO. TEXAS (1943-1974)

THE SAMPLE NUMBER OF OBSERVATIONS = THE SAMPLE MEAN = THE SAMPLE STANDARD DEVIATION = THE SAMPLE MINIMUM = THE SAMPLE MAXIMUM =

DATE ANEMOMETER FASTEST MILE WIND SPEED

ELEVAT ION(FT ) AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

03/15/43 85. 61 . SW

1 1 /25/44 85. 57. M 02/21/45 85. 57. SW

03/15/46 85. 70. W 06/17/47 85. 68. N

03/01/48 85. 66. SW

04/10/49 85. 66.

05/04/50 85. 70. NW

12/04/51 85. 66. W 02/02/52 85. 59. W 12/05/53 85. 61. W 02/18/54 85. 66. NW

04/23/55 85. 56. NW

04/02/56 85 . 57. W 07/23/57 85. 61 . s 04/08/58 85. 66. w 03/19/59 85. 56. NW

02/03/60 85. 69. w 04/08/6

85. 57. NW

08/15/62 85. 61 . NW

03/18/63 85. 57. NW

03/24/64 85. 56. W 03/16/65 37. 56. w 07/27/66 37. 68. NE

04/13/67 37. 61 . w 02/20/68 37. 61. W 03/23/69 37. 53. SW

12/15/70 37. 66. W 02/03/7

37. 56. SW

07/12/72 37. 57. N

04/18/73 37. 54. SW

04/02/74 37. 59. w

32.00

55.36

4.82

48.98

66.67

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

53.

50.

50.

6 1 . 59.

58.

58.

61 . 58.

52.

53.

58.

49.

50.

53.

58.

49.

60.

50.

53.

50.

49.

55.

67.

60.

60.

52.

65.

55.

56.

53.

58.

271
RETURN PERIOD

( I N YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 OI STRIBUTION

ESTIMATED

STAN, DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6. 0

54.62

56.73

58.08

59. 07

59.87

.78

.96

1 . 09

1.20

1 .29

.78

1 . 00

1.17

1 .32

1 .44

7.0

8. 0

9.0

10.0

20.0

60.53

61. 09

61 .58

62. 02

64.85

1 .36

1 .43

1-49

1 .54

1 .88

1 .54

1 .63

1 .71

1 .78

2.25

30. 0

32.0

40.0

50.0

60.0

66.47

66.73

67.62

68.51

69.23

2.08

2.12

2.23

2.34

2.43

2.53

2.57

2.72

2.87

3.00

70.0

80.0

90.0

100.0

200.0

69. 84

70.37

70.83

71.25

73.98

2.51

2.58

2.64

2.69

3. 04

3.10

3.20

3.28

3.35

3.82

300.0

400.0

500.0

600.0

700. 0

75. 58

76.71

77. 58

78.30

78.91

3.25

3.39

3.51

3.60

3.68

4.10

4.30

4.45

4.58

4.69

800.0

900. 0

1000.0

2000.

3000.0

79.43

79. 89

80.31

83. 03

84.62

3.75

3.81

3. 86

4.21

4.42

4.78

4. 86

4.93

5.41

5.69

4000.0

5000.0

6000.0

7000.0

8000.0

85.75

86.63

87.35

87. 95

88.48

4.57

4.68

4.78

4. 86

4.93

5.89

6.05

6.17

6.28

6.37

9000.0

10000.0

50000.0

1 00000.

500000.0

88.94

89.35

95.67

98.40

104. 72

4.99

5.04

5.87

6.23

7. 06

6.45

6.53

7.64

8.13

9.25

1 000000.0 107.44 7.42 9.73

272
PORT ARTHUR. TEXAS (1953-1977) CAUTION SEE APPENDIX 1 AND SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS

THE SAMPLE MEAN

THE SAMPLE STANDARD DEVIATION

THE SAMPLE MI NIMUM

THE SAMPLE MAXIMUM

DATE ANEMOMETER FASTEST MILE WIND SPEED

ELEVATION(FT) AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

12/03/53 57. 69. S

04/30/54 57. 49. SE

03/21 /55 57. 50. NW

10/20/56 57. 65. NW

06/27/57 57. 72. NW

09/15/58 57. 42. S

05/21/59 57. 51 . sw 02/09/60 57. 56. sw 04/11/61 57. 56. NW

08/14/62 57. 56. NE

07/26/63 57. 66. SW

08/05/64 57. 73. E 04/19/65 57. 60. W

04/18/66 57. 60. NW

02/06/67 57. 49. NE

09/17/68 57. 55. SW

02/14/69 57. 62. SE

02/01 /70 57. 49. SW

05/09/71 20. 74. SW

05/12/72 20. 52. s 12/19/73 20. 49. NW

07/27/74 20. 40. NE

01/10/75 20. 45. NW

10/29/76 20. 40. E

1 1/29/77 20. 39. NW

25.00

53.07

9.57

38.60

81 .00

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

63.

45.

46.

60.

66.

39.

47.

51.

51 . 51 . 61 . 67.

55.

55.

45.

5 1.

57.

45.

81 . 57.

54.

44.

49.

44.

43.

273
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SAN ANTONIO. TEXAS (1941-1976)

THE SAMPLE NUMBER OF OBSERVATIONS = 36.00

THE SAMPLE MEAN = 46.97

THE SAMPLE STANDARD DEVIATION = 8.59

THE SAMPLE MINIMUM = 36.23

THE SAMPLE MAXIMUM = 79.52

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

05/ 02./ 1 63 . 43 . NW 39.

08/30/42 22. 74« NE 80 • 07/27/43 51. 52. NE 49 . 05/24/44 51. 56 . W 52.

06/12/45 51 • 43 • N W 40 a 05/16/46 51 . 73. N W 68.

12/31 /47 51. 4 8. N W 45 . 03/ 2.2./ '^Q 51 • 52. NW 49 .

1 0/30/49 51 . 42 • N 39.

I 1/03/50 51 . 43. N 40 a 03/18/5

51 . 45 . NE 42.

05/ 10/52 51 • 52 • NE 49a

06/12/53 51 • 59. E 55.

02/27/54 31 . 56. N 57.

06/08/55 31 . 57. NE 58.

01/03/56 31 . 43. N 43.

09/12/57 31 • 47. NE 47.

02/26/58 31 . 43. NW 43.

06/05/59 31 • 41. NE 41.

02/09/60 31 . 47. NW 47.

09/11/61 23. 47. N 50a

01/09/62 23. 37. N 39a

01/23/63 23. 40. N 43.

08/06/64 23. 45. SE 48.

05/17/65 23. 49. SE 52.

03/22/66 23. 39. N 42.

03/06/67 23. 38. N 40.

04/23/68 23. 42. N 45.

07/21/69 23. 37. E 39.

04/18/70 23. 45. NW 48.

05/24/71 23. 43. NW 46.

03/01/72 23. 34. N 36.

03/28/73 23. 44. N 47.

07/03/74 23. 35. SE 37.

05/08/75 23. 46. NE 49.

04/07/76 23. 43. NW 46a

275
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276
SALT LAKE CITY, UTAH (1942-1977) • REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 36.00

THE SAMPLE MEAN = 50.55

THE SAMPLE STANDARD DEVIATION = 7.22

THE SAMPLE MINIMUM = 40.34

THE SAMPLE MAXIMUM = 68.96

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

04/22/42 46. 56. NM 53.

0 1 /21/43 46. 52. SE 49.

06/08/44 58. 44. NW 40.

08/19/45 58. 58. W 53.

10/01/46 58. 60. NW 55 . 08/10/47 58. 44. NW 40.

04/29/48 58. 53. SW 49.

08/04/49 58. 50. W 46.

1 0/27/50 58. 67. NW 61 . 08/19/5

58. 45. W 4 1.

09/03/52 58. 61 . w 56 • 05/21 /53 58. 57. NW 52.

03/10/54 58. 71 • NW 65.

0 4 /26/5 5 29 . 54 . S W 55 . 03/31/56 29. 42. SW 43.

07/21/57 29. 45. w 46.

11/14/58 29. 43. s 44.

06/15/59 29. 42. w 43.

08/22/60 20. 40. SW 44.

08/06/6

20. 49. w 54,

01/20/62 20. 49. s 54.

06/03/63 20. 63. w 69.

04/11/64 20. 57. NW 62.

08/03/65 20. 45. SW 49.

08/11/66 20. 42. NW 46.

03/11/67 20. 45. S 49.

05/05/68 20. 54. SW 59.

08/11/69 20. 45. SW 49.

05/23/70 20. 46. NW 50.

02/24/71 20. 41 . S 45.

09/05/72 20. 55. NW 60.

07/20/73 20. 42. W 46.

03/02/74 20. 45. S 49.

06/02/75 20. 38. NW 42.

04/25/76 20. 49. NW 54.

03/27/77 20. 42. N 46.

277
RETURN PERIOD

(IN YEARS)

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

20.0

30.0

36.0

40.0

50.0

60.0

70.0

80.0

90.0

100.0

200.0

300.0

400.0

500.0

600. 0

700. 0

800.0

900.0

1 000.0

2000.0

3000.0

4000.0

5000.

6000.

7000.0

8000.0

9000.

10000.0

50000.0

100000.0

500000.0

1 000000.0

PREDICTED EXTREME

BASED ON

EXTREME VALUE TYI DI STRI BUTION

49.42

52.60

54.63

56. 14

57.34

58.33

59. 19

59.93

60.59

64. 86

67.32

68.42

69.05

70.39

71 .48

72.4 0

73. 20

73.90

74.53

78.66

81.07

82.78

84. 1 0

85. 18

86. 10

86. 89

87.59

88.22

92.33

94.73

96.44

97.77

98.85

99.76

100.55

101 .25

101 .88

111.43

115.54

125.09

129.20

ND ESTIMATED

STAN. DEV.

1 SAMPL. ERROR

CRAMER-RAO

1.10

1 .35

1 .54

1 .69

1 .82

1.92

2.01

2. 10

2.17

2.65

2.94

3.07

3. 14

3.30

3.43

3.54

3.63

3.72

3.79

4.29

4.58

4. 78

4.94

5.07

5. 19

5.28

5.37

5.44

5.94

6.24

6.44

6.61

6.74

6.85

6.95

7.03

7. 11

8.28

8.78

9.95

10.46

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

1.10

1 .40

1 .66

1 .86

2.03

2. 17

2.30

2.41

2.51

3.17

3.56

3.74

3.84

4.05

4.23

4.38

4.51

4.62

4.72

5.39

5.78

6.06

6.28

6.46

6.61

6.74

6.85

6.95

7.63

8.03

8.31

8.52

8.70

8.85

8.98

9. 10

9.20

10.78

1 1 .46

13.04

13.72

278
BURLINGTON. VERMONT (1944-1977). REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 34.00

THE SAMPLE MEAN = 45.68

THE SAMPLE STANDARD DEVIATION = 7.27

THE SAMPLE MINIMUM = 34.68

THE SAMPLE MAXIMUM = 66.50

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

0 2/05/44 51. 4 2. s 39.

0 3/06/4 5 51. 47 . s 4 4.

1 1 /24/46 51. 45. s 42.

04/1 1 /47 51. 47. s 44 . 04/ 11/48 51. 52. s 4 9.

1 2/22/49 51. 52, s 49 .

1 1 /26/50 55 . 72. SE 6 6.

Q3 /"?0 /S 1 55 . 56. s 5 2.

55 . 4 0. W 37 . ^ ^ . 4 7. s w 4 3.

6 0. 7 0- «^ 6 4. o u • MFN 02/25/56 60. 47. w 43.

01/20/57 60. 42. 5 38.

06/01/58 60. 38. SW 35.

12/09/59 20. 42. NW 46.

04/17/60 20. 37. S 41 . 12/15/61 20. 38. NW 42.

01/16/62 20. 47. S 51 . 03/06/63 20. 49. S 54.

1 1/18/64 20. 47. NW 51 . 02/25/65 20. 50. SE 55.

04/21/66 20. 38. SW 42.

10/19/67 20. 40. SW 44.

1 2/13/68 20. 38. S 42.

02/09/69 20. 34. N 37.

01/29/70 20. 43. SW 47.

03/ 15/71 20. 38. SW 42.

01/25/72 20. 49. NW 54.

10/14/73 20. 38. w 42.

07/09/74 20. 46. NW 50.

04/ 19/75 20. 40. S 44.

03/27/76 20. 37. S 41 . 03/30/77 20. 34. NW 37.

279
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280
LYNCHBURG, VIRGINIA (1944-1977J, REFER TO SECT. 2.2

THE SAMPLE NUMBER OF OBSERVATIONS = 34.00

THE SAMPLE MEAN = 40.94

THE SAMPLE STANDARD DEVIATION = 6.07

THE SAMPLE MINIMUM = 32.76

THE SAMPLE MAXIMUM = 53.36

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED>

X \f / £Sj / ** o u . . KIP «;D 1 . i . o u . •f O • AO\j OA y A A c. / iLO / *#-0 D U a O # . 0 w

\j \ / / ** r O U . Dr. 0cuw DO.

0 1 iix *#'

X3\} . 0 D . 0c

1 1 J f\ y M C\ D U . 'Jo* IN W

\ d./ sj ( XOU DO . A SC. A 0

0O/27XD

50 . OO . onC Ui 32 • 08/31 X52 50 . 4o . N t 4 J . 08/08/53 50 . 45. N W 4 2.

07/ 15/54 50 . 43. N W

A4 0.

03/22/55 50. 42. W 39 • 03/08/56 50. 41 . S 38.

1 1 /08/57 50. 40. S 37.

05/19/58 50. 56. N 52.

01/21/59 50. 38. S 36.

06/12/60 50. 38. N 36.

02/25/61 50. 50. S 47.

1 1/27/62 50. 35. NE 33.

03/06/63 20. 39. W 43.

1 0/16/64 20. 36. NE 39.

02/25/65 20. 34. W 37.

04/01/66 20. 34. w 37.

08/19/67 20. 34. NW 37.

12/28/68 20. 40. SW 44.

05/09/69 20. 31. w 34.

04/02/70 20. 37. SW 41 . 01/26/71 20. 45. w 49.

11/08/72 20. 33. NW 36.

03/17/73 20. 34. w 37.

06/10/74 20. 31 . w 34.

04/03/75 20. 33. w 42.

03/21/76 20. 34. s 37.

08/11/77 20. 48. w 53.

281
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3. 0

4.0

5.0

6.0

40. 01

42.^4

44.32

45.57

46.56

.95

1.17

1 .33

1 .46

1 .57

.96

1.21

1 .43

1.61

1 .76

7.0

8.0

9.0

10.0

20. 0

47.38

48. 09

48. 70

49. 25

52.78

1.66

1.74

1.81

1 . 88

2.30

1 .88

1 .99

2.09

2. 17

2.75

30. 0

34. 0

40.0

50. 0

60.0

54.82

55.44

56.25

57.36

58.26

2.54

2.62

2.72

2. 86

2.97

3.08

3. 19

3.32

3.51

3.66

70.0

80. 0

90.0

100.0

200. 0

59. 02

59.68

60.26

60.78

64. 20

3.06

3.14

3.22

3.28

3.71

3.79

3.90

4.00

4.09

4. 67

300. 0

400.0

500.0

600.0

700. 0

66. 19

67.61

68. 70

69.60

70.35

3.96

4. 14

4.28

4.39

4.49

5.01

5.25

5.44

5.59

5.72

800.0

900.0

1000.0

2000.

3000.0

71.01

71 .59

72, 1 1 75.51

77.50

4.57

4.64

4.71

5. 14

5.40

5.83

5.93

6.02

6.60

6 .95

4000.0

5000.0

6000.

7000.0

8000.0

78. 91

80.01

80.90

81 .66

82.31

5.58

5.72

5. 83

5.93

6.01

7.19

7.38

7.53

7.66

7.78

9000.0

10000.0

50000.0

1 00000.

500000.

82 . 89

83.41

91.31

94.71

102.62

6.09

6.15

7.16

7.60

8.61

7.88

7.96

9.33

9.92

1 1 .28

1 000000.0 106. 02 9. 05 1 1 .87

282
NORFOLK, VIRGINIA (1953-1972) CAUTION SEE APPENDIX 1

THE SAMPLE NUMBER OF OBSERVATIONS = 20.00

THE SAMPLE MEAN = 48.93

THE SAMPLE STANDARD DEVIATION = 8.86

THE SAMPLE MINIMUM = 35.33

THE SAMPLE MAXIMUM = 68.89

DATE ANEMOMETER

ELEVATIONC FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMDMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

08/14/53

10/15/54

03/22/55

07/09/56

09/04/57

08/13/58

01/22/59

09/12/60

02/25/61

1 1/09/62

03/06/63

09/13/64

02/25/65

02/13/66

03/07/67

05/27/68

03/01/69

06/21/70

08/27/71

02/03/72

78.

78.

78.

78.

78.

78.

78.

78.

78.

78.

78.

78.

78.

78.

78.

73.

78.

78.

78.

78.

63. NE

78. S

54,

63,

59,

48,

73,

45,

52,

57.

42,

52,

40,

52,

W sw

s

s 56. SM

W sw

SE

W 63. NE

66. SW

45. SW

W SE

N

W 52. NE

48. SW

56.

69.

48.

56.

52.

42.

49.

64.

40 . 46.

50.

56.

58.

40.

37.

46.

35.

46.

46.

42.

285
RETURN PERIOD

(IN YEARSl

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 Dl STRI8UTI0N

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH, OF MOM.

2.0

3.0

4.0

5.0

6.0

47.59

51.61

54. 18

56.0 8

5 7.59

1 .81

2.22

2.54

2.79

2.99

1 .82

2.31

2.73

3. 06

3.34

7.0

8.0

9.0

10.0

20.0

58.85

59.92

60.86

61.70

67.09

3.17

3.32

3.45

3.57

4.37

3.58

3.79

3.97

4.14

5.23

20.0

30.0

40.0

50. 0

60.0

67.09

70. 19

72.37

74. 06

75.44

4.37

4.84

5. 18

5.44

5.65

5.23

5.87

6.32

6.68

6.97

70.0

80.0

90.0

100.0

200.0

76.61

77.61

78.50

79.29

84.5 0

5.83

5.99

6.12

6.25

7. 06

7.21

7.42

7.61

7.78

8.88

30 0. 0

400.0

500. 0

600.0

700.0

87.55

89.70

91 .38

92.74

93.90

7.54

7.88

8. 15

8.36

8. 54

9.53

9.99

10.35

10.64

10.89

800,0

900,0

1000.0

2000.0

3000.

94.90

95.78

96.57

1 0 1 . 76

104. 80

8.70

8. 84

8.97

9.79

10.27

11.10

11 .29

1 1 .46

12.57

13.22

4000.0

5000.

6000.0

7000.0

8000.0

106. 95

108.63

109.99

111.15

112. 15

10.62

10.88

11.10

1 1 .29

1 1 • 44

13.69

14.05

14.34

14.59

14. 80

9000.0

10000.0

50000.0

100000.0

500000.0

113.03

1 13.82

125.87

131. 06

143. 12

1 1 .59

1 1 .71

13.64

14.47

16.40

14.99

15. 16

17.76

18.88

21 .48

1000000.0 148.31 17.23 22.60

28^1
RICHMOND. VIRGINIA <1951-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 27.00

THE SAMPLE MEAN = 42.15

THE SAMPLE STANDARD DEVIATION = 6.39

THE SAMPLE MINIMUM = 30.65

THE SAMPLE MAXIMUM = 61.29

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

02/01/51 66. 45. SW 41.

06/29/52 66. 52- NW 47.

06/09/53 66. 34. NW 31 • 10/15/54 66. 68. SE 6 1 . 07/23/55 66. 56. NW 50.

05/23/56 66. 39. SW 35.

06/28/57 66. 50. S 45.

01/25/58 66. 39. E 35.

01/21/59 66. 40. S 36.

12/12/60 66. 38. NW 34.

02/25/61 20. 38. SW 42.

05/08/62 20. 45. N 49.

03/06/63 20. 37. W 41 . 03/10/64 20. 40. SW 44.

06/30/65 20. 35. N 38.

02/13/66 20. 40. SW 44.

07/20/67 20. 38. SW 42.

12/28/68 20. 40. SW 44.

06/ 18/69 20. 34. N 37.

04/02/70 20. 36. W 39.

01/26/71 20. 43. NW 47.

04/15/72 20. 40. NW 44.

07/11/73 20. 47. NW 51.

03/16/74 20. 35. SW 38.

01/01/75 20. 40. NW 44.

03/13/76 20. 34. W 37.

11/17/77 20. 38. NW 42.

285
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286
NORTH HEAD, WASH. (1912-1952)

THE SAMPLE NUMBER OF OBSERVATIONS = 41.00

THE SAMPLE MEAN = 71.47

THE SAMPLE STANDARD DEVIATION = 10.14

THE SAMPLE MINIMUM = 60.03

THE SAMPLE MAXIMUM = 104.36

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION( FTI AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

1 py^o /IP 55 . f ^ . c fi7 ^

1 1 /29 / 1

55. 70 • •Jc ft S • 55 . * ^ . ft 7 .

1 2/ 19 / 155 . 73 . SE ft 7 •

L ^ ^ \J -J r X \J ^^ . f V . 0^ 7r nw •. 55 . ft . c ft -

X X w X \J r xo 55 . 73. ftor.7 .

\J X f X*9 r X 17 7 Q • 7r 0T «.

X ^ r X ^ r C\J o ^ . c ft A . n 1 PQ p 1 9^ . 1 1 T . ^F ji w *» .

1 p P ij ^ • 0c ft n .

\J X f X f /^^W 7 -a 0c ftOf.7

X U X <io / c.*^ Do . y -a f 0 . 0 Of.

X

1 1 ic:yoc ID/^^O DO • f 0 . f u . 12/0 I /26 55 • 80 . S 74 . 02/19/27 55. 79. S 73.

12/09/28 55. 72. S 66.

12/25/29 55. 68. S 63.

02/20/30 55. 68. s 63.

12/06/31 55. 72. s 66.

12/22/32 55. 82. s 76.

12/17/33 55. 73. s 67.

10/21/34 55. 109. SE 10 1.

01/21/35 55. 70. s 65.

01/12/36 55. 77. s 71.

1 1/24/37 55. 91 . s 84.

02/05/38 55. 84 . s 78.

01/01/39 55. 96. s 89.

12/21/40 55. 1 04. s 96.

12/14/41 55. 80. s 74.

12/21/42 55. 72. s 66.

04/23/43 55. 89. s 82.

12/27/44 55. 73. s 67.

03/19/45 55. 72. s 66.

0 1/03/46 55. 73. s 67.

1 2/18/47 55. 73. s 67.

1 1/27/48 55. 73. s 67.

12/04/49 55. 70. s 65.

287
10/25/50 55. 68. SE 63 01/02/51 55. 78. W 72 12/06/52 55. 73. S 67

288
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290
QUILLAYUTE, WASH. (1967-1977)

THE SAMPLE NUMBER OF D8SERVATIONS 1 1 .00

THE SAMPLE MEAN -

' 36 .54

THE SAMPLE STANDARD DEVIATION 3 .08

THE SAMPLE MI NIMUM 30 .09

THE I^AMPLE MAXI MUM 41 .91

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

12/05/67 22. 36. SE 39.

01/09/68 22. 34. S 37.

12/22/69 22. 39. sw 42.

12/07/70 22. 33. sw 35.

01/15/71 22. 32. sw 34.

02/27/72 22. 35. sw 38.

1 1/27/73 22. 37. SE 40.

03/26/74 22. 33. SE 35.

1 1/14/75 22. 33. SE 35.

02/25/76 22. 28. SW 30.

12/13/77 22. 34. SW 37.

291
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DI STRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4. 0

5.0

6.0

36. 12

37.51

38.40

39.06

39.59

.85

1 . 04

1 . 19

1 .30

1 .40

.85

1 .08

1 .28

1 .43

1.57

7.0

8. 0

9.0

10.0

11.0

40.02

40.40

40.72

41.01

41.27

1 .48

1 .55

1 .62

1 .67

1 .72

1 . 68

I .77

1 .86

1 .94

2.01

20.0

30.0

40.0

50.0

60.0

42.88

43. 96

44. 71

45.30

45.78

2.05

2.27

2.42

2.55

2.65

2.45

2.75

2.96

3.13

3.26

70.0

80.0

90.0

100.0

200.0

46. 18

46.53

46.84

47. 1 1 48. 92

2.73

2.80

2.87

2.93

3.31

3.38

3.48

3.56

3.64

4. 16

300. 0

400.0

500.0

600.0

700. 0

49.97

50.72

51 .30

51,78

52. 18

3.53

3.69

3.81

3.92

4.00

4.46

4.68

4.85

4.98

5.10

800. 0

900.0

1 000.0

2000.0

3000.

52.52

52. 83

53. 1 0

54.90

55.96

4.03

4.14

4.20

4.59

4.81

5.20

5.29

5.37

5.89

6. 19

4000o0

5000.0

6000.

7000.

8000.0

56.70

57.28

57.76

58. 16

56.50

4.97

5. 10

5.20

5.28

5.36

6.41

6.58

6.71

6.83

6.93

9000.0

10000.

50000.

100000.0

500000.

58.81

59. 08

63.26

65. 06

69.24

5.42

5.48

6.39

6.77

7.68

7. 02

7.10

8.32

8.84

10.06

1000000.0 71 . 04 8. 07 10 .58

292
SEATTLE. WASH. {1968-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 10.00

THE SAMPLE MEAN = 41.92

THE SAMPLE STANDARD DEVIATION = 3,35

THE SAMPLE MINIMUM = 35.03

THE SAMPLE MAXIMUM = 45.97

DATE ANEMOMETER

ELEVATION{FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION*

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

01/10/68

12/14/69

12/10/70

01/16/71

03/24/72

12/11/73

04/11/74

01/08/75

02/25/76

1 1/01/77

20.

20.

20.

20.

20.

20.

20.

20.

20.

20.

35.

40.

32.

42.

38.

41 . 37.

41 • 38.

39.

SW

S

SW

SM

SW

SE

S

SW

s SW

38.

44.

35.

46.

42.

45.

41 . 45.

42.

43.

293
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTIMATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6.0

41*49

42.96

43. 90

44.59

45. 15

.97

1. 19

1 .35

1 .49

1.60

.97

1 .23

1 .46

1.64

1 .79

7,0

8. 0

9.0

10.0

10.0

45.61

46.00

46.34

46.65

46. 65

1 .69

1 .77

1 .84

1 .91

1 .91

1.91

2.02

2. 12

2.21

2.21

20.0

30.0

40.0

50«0

60.0

48.62

49.75

50.55

51,17

51 . 67

2.33

2. 59

2.76

2.90

3.02

2.79

3. 13

3.38

3.57

3.72

70. 0

80,0

90«0

100.0

200.0

52. 09

52.46

52.79

53.08

54.98

3.11

3.20

3.27

3.34

3.77

3.85

3.96

4.06

4.15

4.74

300.0

400.0

500.0

600.0

700. 0

56.09

5<6.8a

57.49

57.99

58.41

4.03

4.21

4.35

4.47

4.56

5.09

5.34

5 .53

5.68

5.81

800. 0

900,0

1000.0

2000.0

3000.0

58.78

59. 10

59.39

61,28

62.39

4.65

4.72

4.79

5.23

5.49

5.93

6 .03

6.12

6.71

7,06

4000,0

5000.

6000.0

7000.0

8000,0

63. 1 8

63e 79

64.29

64,71

65, 08

5.67

5.81

5.93

6.03

6, 1

7,31

7.50

7.66

7.79

7.91

9000.0

10000.0

50000.0

100000.0

500000.

65.40

65.69

70,09

71 .99

76.39

6.19

6.25

7.28

7.73

8.76

8.01

8.10

9.48

10,08

1 1 .47

1 000000.0 78.29 9.20 12. 07

2%
SPOKANEt WASH. (1941-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 37,00

THE SAMPLE MEAN = 47.81

THE SAMPLE STANDARD DEVIATION = 6.44

THE SAMPLE MINIMUM = 33.42

THE SAMPLE MAXIMUM = 64.58

DATE ANEMOMETER

ELEVATION(FTJ

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

03/17/41 42. 40. SW 38.

03/05/42 53. 45. sw 42.

12/03/43 53. 56. SW 52.

03/23/44 53. 56. w 52.

04/27/45 53. 43. w 40 . 03/02/46 53. 36. sw 33.

0 1/25/47 53. 56. sw 52.

1 1 /28/48 29. 42. sw 43.

1 1 /27/49 29. 54 . sw 55.

1 0/27/50 29 . 56. sw 57 . 01/ 15/5

29. 50. sw 51.

03/28/52 29. 45. sw 46 . 0 1/08/53 29. 44. sw 45.

01/14/5 4 29. 42. s 43.

03/22/55 29. 54 • sw 55 . 12/09/56 29. 51 • sw 52.

05/01/57 29. 49. w 50 . 02/25/58 34. 45. sw 45.

10/08/59 31 . 43. s.w 43.

02/14/60 31 . 37. sw 37.

12/21/61 31 . 47. sw 47.

1 1/19/62 31 . 50. sw 50.

04/14/63 31 . 49. sw 49.

02/16/64 31 . 42. sw 42.

02/27/65 31 . 45. sw 45.

01/02/66 20. 39. s 43.

01/15/67 20. 44. w 48.

12/03/68 20. 50. sw 55.

01/31/69 20. 36. sw 39.

04/24/70 20. 47. sw 51 . 03/26/71 20. 53. sw 58.

01/09/72 20. 59. sw 65.

1 1/12/73 20. 45. sw 49.

03/01/74 20. 42. sw 46.

12/02/75 20. 48. sw 53.

03/24/76 20. 44. sw 48.

12/03/77 20. 42. w 46.

295
RETURN PERIOD

(IN YEARS)

2.0

3. 0

4. 0

5.0

6.0

7. 0

8.0

9. 0

10.0

20.0

30.0

37. 0

40.0

50.0

60 » 0

70.0

80.0

90.0

100.0

200. 0

300. 0

40 0. 0

50 0.0

600. 0

700, 0

800. 0

900.0

1 000.

2000.0

3000.

4000.0

5000.0

6000.0

7000.

8000.0

9000.0

10000,

50000.0

1 00000,0

500000.

1 000000.0

REDICTED EXTREME

BASED ON

EXTREME VALUE TY

DI STRI BUTION

46. 81

49.61

51 .39

52.72

53.77

54.64

55.39

56. 05

5J5.63

60.38

62.54

63.65

64, 06

65.23

66.19

67.00

67. 70

68.32

68.87

72.50

74.61

76, 1 1 77.28

78. 23

79.03

79.73

80.34

80.89

84,51

86,62

88. 12

89.28

90.23

91,03

91.73

92.34

92.89

101 .28

104, 89

113,28

1 16,90

WIND ESTIMATED

STAN, DEV,

E 1 SAMPL. ERROR

CRAMER-RAO

.97

1 .19

1 .36

1 .49

1.60

1 .69

1 .77

1 .85

1 .91

2.34

2.59

2.72

2.77

2.91

3.02

3.12

3.20

3.27

3.34

3. 77

4. 03

4.21

4.35

4.47

4.57

4.65

4.73

4.79

5.23

5.49

5.67

5.82

5.93

6.03

6.12

6,19

6,26

7.29

7,73

8.76

9.21

ESTIMATED

STAN. DEV.

SAMPL, ERROR

METH. OF MOM.

.97

1.24

1 .46

1 .64

1 .79

1.91

2.03

2.12

2.21

2.79

3. 14

3.31

3.38

3,57

3.72

3.85

3.97

4.07

4.16

4.75

5.09

5.34

5.53

5.69

5.82

5.93

6. 03

6.12

6.72

7.07

7.32

7.51

7.66

7.80

7.91

8.01

8.10

9.49

10.09

1 1 .48

12.08

296
TATOOSH ISLAND. WASH. (1912-19651

THE SAMPLE NUMBER OF OBSERVATIONS = 54.00

THE SAMPLE MEAN = 66.02

THE SAMPLE STANDARD DEVIATION = 6.98

THE SAMPLE MINIMUM = 52.38

THE SAMPLE MAXIMUM = 85.60

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATIONI GROUND (CORRECTED SPEED)

12/17/12 57. 75. S 69.

02/16/13 57. 57. E 52.

01/02/14 57. 70. S 64.

1 1/25/1

57. 69. sw 63.

02/02/1

57. 84. NE 77.

03/23/157. 60. SW 55.

11/13/18 57. 65. S 60.

01/14/19 57. 85. S 78.

1 1/27/20 57. 73. s 67.

01/29/21 57. 87. sw 80.

12/05/22 57. 62. NE 57.

12/17/23 53. 75. S 70.

12/19/24 53. 76. E 7 1.

02/10/25 53. 65. E 60.

1 1/20/26 53. 66. E 61.

12/31/27 53. 76. E 71.

03/26/28 53. 91. E 84.

04/16/29 53. 57. S 53.

01/16/30 53. 70. E 65.

01/22/31 53. 66. S 6 1 . 12/22/32 53. 66. s 61.

12/20/33 53. 65. s 60.

12/26/34 53. 73. sw 68.

01/21/35 53. 61 . sw 57.

12/21/36 53. 63. s 58.

02/16/37 53. 70. s 65.

03/16/38 53. 77. sw 71.

09/20/39 55. 68. NE 63.

12/22/40 61. 85. S 77.

12/15/41 61. 77. SW 70.

02/01/43 61. 66. SW 60.

1 1/02/42 61 . 94. S 86.

12/22/44 61. 64. E 58.

03/19/45 61. 80. s 73.

01/07/46 61. 73. w 66.

12/13/47 61 • 72. s 66 . 1 1/27/48 61. 72. s 66.

12/28/49 61 . 77. s 70.

297
01/13/50 61, 72. NE 66

01/16/51 61. 70. SW 64

12/30/52 61. 72. S 66

01/09/53 61. 72. S 66

01/03/54 61. 70. S 64

12/18/55 61. 72. E 66

10/19/56 61. 73. S 66

12/22/57 61. 71. W 65

04/17/58 61. 71. SW 65

01/04/59 61. 68. E 62

04/13/60 61. 73. E 66

01/18/61 64. 77. E 70

11/25/62 64. 80. SW 72

10/24/63 64. 70. S 63

01/19/64 64. 72. SW 65

01/01/65 64. 72. SW 65

298
RETURN PERIOD

(IN YF.ARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTI MATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3.0

4.0

5.0

6.0

64.91

67.93

69.86

71 .29

72.42

.87

1.07

1 .22

1 .34

1 .43

.87

1.11

1 . 31

1 .47

1 .60

7.0

8.0

9.0

10.0

20.0

73.37

74. 1 8

74. 88

75.51

79.56

1 .52

1 . 59

1 .66

1 .71

2. 10

1 .72

1 .82

1.91

1 .98

2.51

30. 0

40.0

50.0

54. 0

60.0

81.8<9

83.53

84. 80

85. 24

85. 83

2.32

2.48

2.61

2.65

2.71

2.81

3. 03

3. 20

3.26

3.34

70.0

80. 0

90. 0

100.0

200. 0

86.71

87.46

88. 13

88.73

92.64

2.79

2.87

2.94

3.00

3.39

3.46

3.56

3.65

3.73

4.26

300.0

400.0

500. 0

600.0

700. 0

94.92

96.54

97. 80

98.83

99.69

3.62

3.78

3.91

4.01

4. 10

4.57

4.79

4.96

5.10

5.22

800.0

900.0

1 000.

2000.

3000.0

100. 45

101.11

101.70

105.60

1 07.88

4. 17

4.24

4.30

4.69

4. 93

5.32

5.41

5.49

6.03

6.34

4000.0

5000.0

6000.

7000.0

8000.0

109.50

110.76

111.78

1 12.65

113.40

5.09

5.22

5.32

5.41

5.49

6.56

6.73

6.88

6.99

7.10

9000.0

10000.0

50000.0

100000.

500000.0

114.06

114.66

123.71

127.61

136.67

5. 55

5.61

6. 54

6.94

7.86

7.19

7.27

8.51

9.05

10.30

1000000.0 140.57 8.26 10.84

299
GREEN BAY. WISCONSIN (1949-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 29.00

THE SAMPLE MEAN = 56.57

THE SAMPLE STANDARD DEVIATION = 11.99

THE SAMPLE MINIMUM = 39.41

THE SAMPLE MAXIMUM = 102.97

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATIONC FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

10/10/49 47. 66. sw 62.

05/05/50 47. 109. SW 103.

03/01/51 47. 6 3 o w 64 • 04/13/52 47 . 57. NE 54 . 06/04/53 47. 73. SW 69.

03/25/54 47. 60. SW 57.

1 1/16/55 47. 67. w 63 . 07/01/56 47. 63. NW 60.

07/29/57 47. 70. NE 66.

I 1/18/58 47. 59. sw 56.

07/08/59 47. 49. SW 46.

04/1 1/60 47. 56. w 53.

10/11/61 47. 51 . sw 48.

1 1/20/62 20. 47. s 51 . 04/03/63 20. SO. SW 55.

04/13/64 20. 59. SW 65.

06/20/65 20 . 45. W 49.

10/22/66 20 • 40. SW 44.

05/18/67 20. 49. SW 54.

05/08/68 20. 54. SW 59.

08/13/69 20. 37. s 41 . 06/17/70 20. 60. w 66.

02/27/71 20. - 50. SW 55.

01/25/72 20. 42o w 46.

04/09/73 20. 47. NE 5 1.

04/21/74 20. 36. s 39.

01/11/75 20. 59. SW 65.

06/15/76 20. 42. sw 46.

03/29/77 20. 50. SW 55.

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in (^ vO (M N oo r- CM CM to CO (7> N CM in t N s ro (M 00 CD CO ro CM (M (71 S « (> (M oo <D

ro to in o CM s OD ro r«- o to « a> CO (71 00 in N CM lO o O o lO c^ o 01 (0 to ro CM O

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in in '0 s N CO OD 0> (7> o o o o CM to <t in S N oo ro * in (D o o t ni CM CM CM CM CM CM CM CM to in r>- (71

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1—1 CM to * in lO s CD 01 o Q o o o

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301
MADISON. WISCONSI N (1947-1977)

THE SAMPLE NUMBER OF OBSERVATIONS - 31.00

THE SAMPLE MEAN = 55.65

THE SAMPLE STANDARD DEVIATION = 10.60

THE SAMPLE MINIMUM = 42.95

THE SAMPLE MAXIMUM = 80.22

DATE ANEMOMETER FASTEST MILE WIND SPEED CALCULATED FASTEST MILE

ELEVATION(FT) AND DIRECTION (RECORDED WIND SPEED AT lOM ABOVE

AT ANEMOMETER ELEVATION) GROUND (CORRECTED SPEED)

04/05/47 26. 73. SW 76.

1 2/05/48 26. 61 . sw 64.

1 2/11/49 26. 65. SW. 68.

05/05/50 26. 77. sw 80 . 10/30/5 1 26. 73. sw 76.

01/15/52 26. 46. sw 48.

05/21 /53 26. 63. s 66.

03/25/54 26. 70. sw 73.

1 1/16/55 26. 49. sw 51 . 05/12/56 26. 47. w 49.

07/08/57 26. 56. w 58.

1 i/18/58 26. 43. sw 45.

04/05/59 26. 45. w 47.

11/15/60 26. 50. sw 52.

1 1 /02/61 26. 42. s 44.

06/17/62 26. 50. w 52.

06/07/63 26. 54. N 56.

07/27/64 26. 57. NW 59.

06/27/65 26. 52. sw 54.

04/19/66 26. 46. s 48 . 04/14/67 15. 42. sw 49.

06/10/68 15. 54. w 63.

1 0/09/69 15. 37, sw 43.

07/30/70 15. 56. NW 65.

02/27/71 15. 40. sw 46.

08/14/72 15. 41. NW 48.

07/09/73 15. 46. NW 53.

04/12/74 15. 37. sw 43.

01/11/75 15. 43. sw 50.

07/30/76 15. 43. N 50.

07/16/77 15. 43. w 50.

302
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303
MILWAUKEE. WISCONSIN (1941-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 37.00

THE SAMPLE MEAN = 53.67

THE SAMPLE STANDARD DEVIATION = 6.53

THE SAMPLE MINIMUM = 42.69

THE SAMPLE MAXIMUM = 67.87

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

09/04/466. 62. SW 56.

05/13/42 66. 54. SW 49.

03/17/43 66. 56. SW 50.

05/03/44 66 . 58. SW 52.

1 1/12/45 66 . 70. s 63.

1 1/21/46 66. 62. SW 56.

04/05/47 66. - 66. SW 59.

12/05/48 66. 62. SM 56.

10/10/49 66. 60. S 54.

05/05/50 66. 72. SW 65.

12/06/51 66. 50. s 45.

07/23/52 66. 59. w 53.

05/21/53 66. 58. SW 52.

03/25/54 66. 73. SW 66.

1 1 /16/55 88. 72. W 63.

05/14/56 88. 59. w 51 . 03/15/57 88. 54. w 47.

05/22/58 88. 54. N 47.

09/26/59 20. 46. SW 50.

02/10/60 20. 58. NE 63.

03/27/61 20. 45, s 49.

07/22/62 20. 39. w 43.

04/03/63 20. 56. SW 61 . 04/13/64 20. 51 . SW 56.

03/18/65 20. 43. SW 47.

05/23/66 20. 40. SW 44.

0 1/16/67 20. 45. SW 49.

04/08/68 20. 42. SW 46.

07/16/69 20. 46. SW 50 . 12/01/70 20. 45. SW 49.

06/19/71 20. 62. w 68.

09/18/72 20. 46. N 50.

06/16/73 20. 52. SW 57.

08/11/74 20. 50. w 55.

01/11/75 20. 54. SW 59.

07/30/76 20. 49. NE 54.

03/29/77 20. 45. SW 49.

30^
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTI MATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM,

2.0

3.0

4.0

5.0

6.0

52.65

55. 51

57.33

58.68

59.76

.98

1.20

1 .37

1.51

1 .62

.99

1.25

1 . 48

1 .66

1 .81

7.0

8.0

9.0

10.0

20.0

60.65

61 .42

62. 08

62.68

66.51

1.71

1 . 80

1 .87

1 .93

2.37

1 .94

2.05

2. 15

2.24

2.83

30.0

37. 0

40.0

50.0

60.0

68.71

69.84

70. 26

71.46

72.44

2.62

2.75

2.80

2.94

3. 06

3.18

3.36

3.42

3.62

3.77

70.0

80.0

90.0

100.0

200.0

73.27

73.98

74.61

75. 18

78. 88

3.16

3.24

3.32

3.38

3.82

3. 90

4. 02

4.12

4.21

4.81

300.0

400.0

500. 0

600.0

700.0

81 . 04

82.57

83. 76

84.73

85.55

4. 08

4.27

4.41

4.53

4.63

5.16

5.41

5.60

5. 76

5.89

800. 0

900.0

1000.0

2000.0

3000.0

86. 26

86. 89

87.45

91.14

93.30

4.71

4. 79

4. 86

5.30

5. 56

6.01

6.11

6.20

6.81

7.16

4000.0

5000.0

6000.0

7000.0

8000.0

94. 83

96. 0 2

96.99

97.81

98.52

5.75

5. 89

6.01

6.11

6.20

7.41

7.60

7.76

7.90

8.01

9000.0

10000.0

50000.0

100000.0

500000.0

99. 15

99.71

108.27

11 1.96

120.53

6.27

6.34

7.38

7.83

8. 88

8.12

8.21

9.61

10 .22

1 1 .63

1 000000.

124.22 9.33 12 .24

505
CHEYENNE. WYOMING (1936-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = 42.00

THE SAMPLE MEAN = 60.51

THE SAMPLE STANDARD DEVIATION = 5.55

THE SAMPLE MINIMUM = 47.45

THE SAMPLE MAXIMUM = 72.62

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

12/30/36 40. 60. NW 58.

02/05/37 40. 69. NW 67.

03/29/38 40. 73. W 7 1.

06/09/39 40. 63. NW 6 1.

1 1/28/40 40. 57. NW 55.

12/18/41 40. 49. W 47.

1 1/29/42 40. 52. NW 50.

01/15/43 40. 63. NW 6 1 . 06/17/44 40. 52. W 50.

03/25/45 40. 52. NW 50.

0 1/24/46 40 . 75. NW 73.

02/02/47 40. 59. NW 57.

1 2/20/48 40. 66. NW 64.

0 1 /04/49 40 . 66. NW 64.

01/15/50 40 . 61. W 59.

0 5/25/5

40 . 69. NW 67 . 03/12/52 40. 56. NW 54.

02/17/53 40. 63. NW 6 1 . 01/18/54 40. 66. W 64.

04/12/55 73. 65. NW 58.

03/27/56 73. 66. NW 59.

1 1 /30/57 33. 56. W 56.

1 0/20/58 33. 61 . W 61 . 04/02/59 33. 63. w 63.

11/01/60 33. 66. w 66 .

1 1/03/61 33. 60. w 60.

1 1/20/62 33. 57. w 57.

03/28/63 33. 62. w 62.

04/27/64 33. 61 . NW 61 . 0 1/27/65 33. 60. W 60.

03/03/66 33. 60. N 60.

05/01/67 33. 69. NW 69.

1 2/03/68 33. 65. W 65.

01/08/69 33. 63. w 63.

03/24/70 33. 64. NW 64.

1 1/20/71 33. 60. NW 60.

03/06/72 33. 69. NW 69.

1 1/12/73 33. 56. NW 56.

306
05/13/74 33. 56. W 56

01/18/75 33. 61. NW 61

06/14/76 33. 65. NW 65

12/02/77 33. 58. W 58

«

307
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DISTRIBUTION

ESTI MATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6.0

59.66

62. 02

63.53

64.65

65.54

.78

.96

1.10

1.20

1 .29

.79

1 .00

1.18

1 . 32

1 .45

7.0

8.0

9.0

10.0

20.0

66.28

66. 91

67.47

67. 96

71 . 13

1 .37

1.43

1 .49

1 . 54

1 .89

1 .55

1 .64

1 .72

1 .79

2.26

30. 0

40.0

42. 0

50.0

60.0

72.95

74.24

74.46

75.23

76. 04

2.09

2.24

2.26

2.35

2.44

2.54

2.73

2.77

2.89

3.01

70.0

80.0

90.0

100.0

200. 0

76.73

77.32

77.84

78.31

81.37

2.52

2.59

2.65

2.70

3. 05

3.12

3.21

3.29

3.36

3. 84

300. 0

400.0

500.0

600. 0

700. 0

83. 16

84.43

85.41

86.22

86.90

3.26

3.41

3.52

3.61

3.69

4.12

4.32

4.47

4 .60

4.71

800.0

900.0

1000.0

2000.0

3000.0

87.49

88.00

88.47

91.52

93.31

3.76

3. 82

3.88

4.23

4.44

4.80

4.88

4 .95

5.43

5.72

400 0.0

5000.0

6000.0

7000.0

8000.0

94. 58

95.56

96.36

97. 04

97.63

4.59

4.70

4.80

4.88

4.95

5.92

6.07

6.20

6.30

6.40

9000.0

10000.0

50000.0

100000.0

500000.0

98. 15

98.61

105.70

108.75

1 15. 85

5.01

5. 06

5.89

6.25

7. 09

6.48

6.55

7.67

8. 16

9.28

1 000000.0 1 18.90 7.45 9.77

308
LANDER* WYOMI NG (1946-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = THE SAMPLE MEAN = THE SAMPLE STANDARD DEVIATION =

THE SAMPLE MINIMUM = THE SAMPLE MAXIMUM =

DATE ANEMOMETER FASTEST MILE WIND SPEED

ELEVATION(FT) AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

09/21/46 31 . 70. W 05/13/47 31 . 49. SW

02/16/48 31 . 53. w 02/10/49 31 • 63. SW

1 0/06/50 31 . 70. SW

01/15/51 31 . 59. SW

06/01/52 31 . 50. w 01/09/53 31 . 61 . SW

01/03/54 31 • 59. SW

04/15/55 31 . 72. SW

12/10/56 31. 56. W 02/11/57 31 . 77. SW

1 1/04/58 32. 75. w 07/06/59 32. 57. w 06/20/60 32. 61 . SW

12/05/61 32. 65. w 08/27/62 32. 56. w 01/31/63 32. 56. SW

12/22/64 32. 73. SW

01/27/65 32. 59. w 01/08/66 32. 66. SW

0 1 /22/67 32. 73. SW

07/29/68 32. 50. w 01/07/69 32. 57. SW

1 1/24/70 32. 60. SW

03/13/71 32, 61 . SW

03/06/72 32. 80. SW

06/17/73 32. 45. w 01/30/74 32. 70. SW

09/01/75 32. 47. SW

02/28/76 32. 45. SW

03/08/77 32. 50. SW

32.00

61.17

9.76

45.20

80.35

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

71.

49.

54.

64.

71 . 60.

50.

62.

60.

73.

57.

78.

75.

57.

61.

65.

56.

56.

73.

59.

66.

73.

50.

57.

60.

61.

80.

45.

70.

47.

45.

50.

309
RETURN PERIOD

(IN YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DI STRIBUTION

ESTIMATED

STAN« DEV.

SAMPL, ERROR

CRAMER-RAO

ESTI MATEO

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6.0

59.68

63,93

66.64

68.65

70.25

1 .58

1 .93

2.21

2.42

2.60

1 . 58

2.01

2.37

2.67

2.91

7.0

8.0

9.0

10,0

20.0

71 ,58

72.71

73.71

74.59

80. 28

2,76

2,89

3,00

3.11

3.80

3.12

3.30

3.46

3.60

4.55

30.0

32.0

40.0

50.0

60.0

83.56

84. 08

85. 87

87.66

89. 1 1

4. 21

4.28

4.50

4.73

4,92

5.11

5.20

5.50

5.81

6,06

70.0

80.0

90.0

100.0

200.0

90.34

91,41

92,34

93, 18

98. 69

5.07

5.21

5,33

5,44

6.15

6.28

6.46

6.62

6.77

7.73

300. 0

400.0

500.0

600,0

70 0. 0

101*90

104. 18

105,95

107,39

108. 61

6,56

6,86

7. 09

7.28

7.44

8.30

8.70

9.01

9.26

9,48

800, 0

900.0

1000,0

2000.0

3000.0

109,67

1 10.60

11 1,44

1 16,92

120, 13

7.57

7.70

7.80

8,52

8.94

9.66

9.83

9.97

10.94

1 1 .51

4000.0

5000.0

6000.

7000.0

8000.0

122.41

124. 17

125. 62

126.84

127. 89

9.24

9.47

9.66

9. 82

9.96

11.91

12.23

12.48

12.70

12.88

9000.0

10000.0

50000.0

100000,0

500000.

128.82

129.66

142.39

147.88

160.62

10.08

10. 19

1 1 . 87

12. 59

14.27

13. 05

13.20

15.46

16.43

18 . 69

1000000.0 166. 1

15.00 19.67

310
SHERIDAN, WYOMING (1941-1977)

THE SAMPLE NUMBER OF OBSERVATIONS = THE SAMPLE MEAN = THE SAMPLE STANDARD DEVIATION = THE SAMPLE MINIMUM = THE SAMPLE MAXIMUM =

DATE ANEMOMETER FASTEST MILE WIND SPEED

ELEVATION( FT) AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

09/07/41 38. 59. NW

10/24/42 38. 65. NW

04/12/43 38. 59. NW

10/17/44 38. 57. NW

08/13/45 38. 72. NW

01/22/46 38. 73. NW

07/18/47 38. 73. W 08/19/48 38. 69. NW

1 1/27/49 38. 84. SW

10/27/50 38. 61 . sw 12/28/5

38. 59. w 06/21/52 38. 66. sw 01/09/53 38. 65. sw

1 1/26/54 38. 65. NW

01/23/55 38. 66. NW

12/10/56 38. 57. w 02/11/57 38. 70. w 11/04/58 42. 73. NW

05/09/59 42. 63. NW

08/15/60 42. 63. NW

03/01/61 42. 62. NW

01/06/62 42. 63. NW

03/28/63 42. 66. SW

02/05/64 42. 63. NW

0 1/04/65 20. 61 . SW

04/02/66 20. 56. NW

01/15/67 20. 57. NW

07/30/68 20. 43. NW

07/03/69 20. 61. NW

12/02/70 20. 56. SW

06/18/71 20. 45. SW

03/06/72 20. 50. SW

08/ 18/73 20. 59. NW

01/15/74 20. 52. SW

0 1 /24/75 20. 47. NW

05/14/76 20. 43. NW

1 1/26/77 20. 51 . NW

37.00

61 .46

7.14

47.07

82.00

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

58.

63.

58.

56.

70 . 71 . 7 1 . 67.

82.

60.

58.

64.

63.

63.

64.

56.

68.

70.

61.

6 1 . 60.

61 • 63.

6 1.

67.

61 . 62.

47.

67.

61.

49.

55.

65.

57.

5 1.

47.

56.

311
RETURN PERIOD

( I N YEARS)

PREDICTED EXTREME WIND

BASED ON

EXTREME VALUE TYPE 1 DI STRIBUTION

ESTIMATED

STAN. DEV.

SAMPL. ERROR

CRAMER-RAO

ESTI MATED

STAN. DEV.

SAMPL. ERROR

METH. OF MOM.

2.0

3.0

4.0

5.0

6.0

60.37

63.44

65.41

66.87

68.03

1.07

1 .32

1 .50

1 .65

1 .77

1 .08

1 .37

1 .62

1 .81

1 .98

7, 0

8.0

9.0

10.0

20.0

68.99

69.81

70.53

71.17

75.30

1 .87

1.96

2.04

2. 12

2.59

2.12

2.24

2.35

2.45

3.10

30. 0

37. 0

40.0

50.0

60.0

77.67

78.90

79.35

80.64

81.70

2.87

3.01

3. 07

3.22

3.35

3.48

3.67

3.74

3.95

4.13

70. 0

80.0

90.0

100.0

200.0

82.59

83.36

84. 04

84.65

88.64

3.45

3. 54

3. 63

3.70

4.18

4.27

4.40

4.51

4.61

5.26

300.0

400.0

500.0

600.0

70 0.0

90.97

92.62

93.90

94. 95

95.83

4.47

4.67

4.82

4. 95

5.06

5.64

5.92

6.13

6.30

6.45

800. 0

900.0

1 000.

2000.0

3000.

96.60

97. 27

97-88

101 .85

104. 18

5. 15

5.24

5.31

5. 80

6.08

6.57

6.69

6.79

7.45

7.83

4000.0

5000.

6000.0

7000.0

8000.0

105. 83

107. 1

108. 16

109. 04

109.81

6.29

6.45

6. 57

6.68

6.78

8.11

8.32

8.49

8.64

8.77

9000.0

10000.0

50000.

100000.0

500000.0

110.48

111.09

120.32

124.29

133.53

6. 86

6.94

8. 08

8.57

9.71

8.88

8.98

10.52

11.18

12.72

I 000000.

137.50 1 0. 20 13.38

312
EUKINS. W.VIRGINIA (1945-1954)

THE SAMPLE NUMBER OF OBSERVATIONS = 10,00

THE SAMPLE MEAN = 51.06

THE SAMPLE STANDARD DEVIATION = 8.20

THE SAMPLE MINIMUM = 39.94

THE SAMPLE MAXIMUM = 68.46

DATE ANEMOMETER

ELEVATION(FT)

FASTEST MILE WIND SPEED

AND DIRECTION (RECORDED

AT ANEMOMETER ELEVATION)

CALCULATED FASTEST MILE

WIND SPEED AT lOM ABOVE

GROUND (CORRECTED SPEED)

03/17/45

03/09/46

05/25/47

04/27/48

09/18/49

12/07/50

07/05/51

01/18/52

12/10/53

04/27/54

45.

45.

45.

45.

45.

45 . 45.

45.

45.

45.

52.

47.

56.

56.

45.

72,

60.

42.

57,

W

W

w NW

W 50. SE

NW

NW

NW

W

49.

45.

53.

53.

43.

48.

68.

57.

40 . 54.

313
a

f

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Z>- CMrO<tinvO N00C7>OO OOOOO OOOOO OOOOO OOOOO OOOOO OOOOO O"

o: cMro<tin>o i^cocj>oo ooooo ooooo ooooo ooooo occ DZ rtCMtO^invONOOtJ'OOOOOOOOOOOOOOa (-'-' «cMto*ln>ONCDc^ooooo UI— «uioooiCE in o a

a

314
APPENDIX 1

STATIONS AT WHICH THE LARGEST YEARLY WIND SPEED DATA MAY NOT

PROVIDE A RELIABLE BASIS FOR PREDICTING EXTREME WINDS

As indicated in some detail, for example, in Reference 4 (p.8A), in

a hurricane-prone region most of the speeds in a series of the largest

annual winds are considerably lower than the extreme speeds associated

with hurricanes. It may then be argued that in hurricane-prone regions

the series of the largest annual speeds may not, in certain cases, provide useful statistical information on winds of interest to the structural designer, much in the same way as the population of a first-grade

classroom — which might include a teacher — is of little use in a statistical study of the height of adults.

For this reason caution is in order in using the results of the

statistical analysis for the following stations at which hurricane

winds may occur:

Jacksonville, Florida

Key West, Florida

Tampa, Florida

Savannah, Georgia

Boston, Massachusetts

Nantucket, Massachusetts

New York, New York

Cape Hatteras, North Carolina

Wilmington, North Carolina

Philadelphia, Pennsylvania

Block Island, Rhode Island

Brownsville, Texas

Corpus Christi, Texas

Port Arthur, Texas

Norfolk, Virginia

Al
REFERENCES

ft

1. Thorn, H.C.S,, "Prediction of Design and Operating Velocities for

Large Steerable Radio Antennas", Large Steerable Radio Antennas - Climatological and Aerodynamic Considerations , Annuals of the New

York Academy of Sciences, Vol. 116, Art. 1, pp. 90-100, New York, ' N.Y., 1964.

j

2. Thom, H.C.S. , "Engineering Climatology of Design Winds, with Special

Reference to the Chicago Area," Proceedings , Symposium on Wind

Effects on High-Rise Buildings, Northwestern University, Evanston,

111., Mar 1970.

3 . American National Standard Building Requirements for Minimum Design

Loads in Buildings and Other Structures A58.1 , American National

Standards Institute, New York, N. Y. , 1972.

4. Simiu, E,, and Scanlan, R.H., Wind Effects on Structures; An Introduction to Wind Engineering , Wiley-Interscience, New York, N.Y.,

1978.

5. Simiu, E., and Filliben, J.J., Statistical Analysis of Extreme Winds , NBS Technical Note No. 868, National Bureau of Standards, Washington,

D.C., June, 1975.

6. Gumbel, E.J,, Statistics of Extremes , Columbia University Press, New

York, N.Y., 1958.

7. Downton, F., "Linear Estimates of Parameters in the Extreme Value

Distribution", Technometrics , Vol, 8, No.l, Feb, 1966, pp. 3-17,

8. Simiu, E., Bietry, J,, and Filliben, J.J., "Sampling Errors in Estimation of Extreme Wind Speeds", Journal of the Structural Division , ASCE, March, 1978, pp, 491-501.

9. Simiu, E,, and Ellingwood, B.R., "Code Calibration of Extreme Wind

Return Periods", Journal of the Structural Division , ASCE, March,

1977, pp. 725-729,

AZ

fl us. GOVERNMENT PRINTING OmCE : 1 979 O—289-068
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SHEET

1. PUBLICATION OR REPORT NO.

NBS BSS 118

2. Gov't Accession

No.

3. Recipient's Accession No.

4. TITLE AND SUBTITLE

Extreme Wind Speeds at 129 Stations in the Contiguous

United States

5. Publication Date March 1979

6. Patforming Organization Code

7. AUTHOR(S)

Emil Simiu, Michael J. Changery, James J. Filliben

8. Performing Organ. Report No.

9. PERFORMING ORGANIZATION NAME AND ADDRESS

NAIIUNAL DUKCAU Or MANDAKUd

DEPARTMENT OF COMMERCE

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of design wind speeds to be specified in building codes and standards or on specific

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17. KEY WORDS (six to twelve entries; alphabetical order; capitalize only tiie first letter of the first key word unless a propter name; separated by semicolons)

Building (codes); probability distribution functions; statistical analysis; storms;

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