The Morning Tulsa daily world. [volume] (Tulsa, Okla.) 1919-1927, 1922-03-19

economical flying. Tho Broken Ar
row station is often called upon by
the Curtis company OF Tulsa for this
Kind OF information, particularly on
tho eve OF long flights, and Reihle IS
the. author OF pamphlet much read
by y'aviators..entitlcd Flying Weather
In the Southern Plains states"
Probably the visitor unacquainted
with "the physics OF the air" and
meteorological terms never COM
plctely understands the mechanics OF
observation as conducted at Broken
Arrow. In the office one sees the
pens on the self-recording instru-
ments describe n curve or mako n
line which, to tho initiated, means
something about the sunshine or
wind or humidity outside. In the
thermometer shelter self-recording
thermometers, or thetmographs, give
n continuous temperature record In
| n curve drawn on n sheet Of paper,
and maximum and minimum Their
momctcrs record respectively the
! highest and lowest temperatures of
the day. on the tower is tho arrow
which determines the direction of
tho wind. As the arrow turns easily
on its axis the movement OF the
wind, in miles per hour, is measured
by an ancmometer. In the reelhousc
are moro thermometers, with tho
business of recording relative hu-
midity: an olectroscope which at
will can measure the static electricity
up TO 10000 volts, and a thcodollto,
tho long-distance "eyes' of the sta
tion. one sauutcrs over to what has
all the appearance OF n park sun
dial, hut which Is technically called
"a nephoscope, and stares down into
a black mirror i'm which tho profess
sional observer can study for awhile
the lazy floating OF some fluffy
cloud in the sky and in minute
state it's exact speed.
They don't observe union hours at
tho ncrologlcal station. IL is in op-
Grafton every day of the year. rain
and shine, Sunday and Thursday,
and often all night. Someone is on
hand TO take notes on tho sunrise
not at all the kind OF notes that n
descriptive word-artist would take
and sunset, too. is appraised from the
scientific viewpoint. Besides the
continuous automatic records oh
servers perform their regular tasks
at set timca
Forecasts Not Infallible.
Weather forecasts are not infalH-
D
instance, no two cyclones are lust
alike and some depart widely In rate
| or direction from the usual rate or
course, so that mistakes may he
made in prediction. Generally speak
/ Ing, weather Is not tickle but follows
certain ineXhorable laws, many OF
| lists.
Like young Iochinvar. moro
winds come out Of the west" than
from any other direction. reason un-
! solved. pressure" is the most i'm
portant word in weather r-observation
vocabulary. Winds blow from re-
glohs or greater pressure 10 those of
| less, ana there are always winds
| blowing somewhere and at frequent
| intervals everywhere because some
| thlng Is always happening 20 cause
unequal pressure.
Reihle Is not much moro happily
| unclrcumstanced than the rest OF the
/ word when he plans a long-distance
/ motor trip or outing, for the state OF
| weather nt Broken Arrow Is no indi-
| cation or that prevailing elsewhere
| An accurate forecast can be based
! only on compiled data from all Tho
stations Observations mado nj tho
same hour at many different ploces
| Wheh lelegraphcd 10 the central sta
ton at Washington, D. G., are
promptly charted and make il possi-
| Die to ioretell with considerable ac-
! curacy the weather that may be OK
Z pected for day or so I'm various
| parts or tho country
The Broken Arrow station. which
was opened in May, 1918, is one of
SIX similar ones maintained by the
government. The government has
| maintained weather service Tor
| about thirty years and aerologicaI
| stations for only a few years A
/ complete history OF northeastern
| Oklahoma weather for the past four
years is TO be had at the station.
Reihle practically speaks for
northeastern Oklahoma when he re-
ports that the surface wind at
Broken Arrow averages throughout
the year 10 miles per hour from the
! south. Pilot balloons show an aver
age wind Of 90 miles per hour from
the west at an altitude OF one and
| one-half miles; 40 miles from the
I west-northwest at three and one