The National tribune., 1889-05-30
THE WEATHER.
Notable Occurrences for the Week Ending May %,
1889.

1885,
BY LIEUT.. J. P. FINLEY, o. S. SIGNAL SERVICE
Correspondence invited suggestions desired
and information eheerfuily furnished. Every eff.
fort employed TO make this Bureau of practical use
10 the readers Of TIE NATIONAL TRIBUNE. All
communications should be addressed Heather.
The NATIONAL TRIBUNE Office, Washington, ID. c..
LOWS OF AREAS OF WARM, MOIST AIR, CLOUDY
WEATHER, WITH GENERAL RAIN Or SNOW
AND HIGH WINDS.
Four such areas affected the weather of the
United States. One came from the east coast
of Florida, two from the California coast, and
one from the Northwest. Average progressive
velocity eastward IA miles per hour. Average
duration FIVE days.
HIGHS, OR AREAS OF COLD, DRY AIR AND GEN.
ERALLY CLEAR WEATHER, WITH MODERATE
WINDS.
Four such areas affected the weather of the
United States. Three came from the North
Pacific coast and one from the Northwest. Aver
age progressive velocity eastward 13 miles per
hour. Average duration four days.
TempeTGtaTe-The greatest fall in % hours
(260) occurred at Grand Haven, Mich, on the
18th. The greatest rise (200) occurred at Gin
cinnati, o., Louisville, KY, and Nashville,
Tenn, on the oath. The maximum (106o)
occurred at Yuma, Ariz, on the Goth and 21st.
The minimum (26o) occurred at st. Vincent,
Oak, on the Doth and oath. Frost occurred in
Minnesota on the 22d to 25th Ohio, 23d Michi-
gan, 22d to 25th; Wisconsin, 21st TO 25th Iowa,
21st to 22d; Washington Territory, 22d; North
Carolina, 23d Dakota, oath aud 25th Ice one
half inch thick formed at Findlay, o.
PrecipitatiOR-Rain has been reported from
every State and Territory except Nevada and
Idaho. Snow fell in the mountains of Virginia
on the 22d and 23d. The heaviest precipta-
tion lover one inch in "a hours) was reported
from the District of Columbia, North Carolina,
Vermont, Massachusetts, New York, Pennsyl-
vania Maryland, Maine, Kansas and Missouri.
The maximum in "a hours (2.0S inches) occurred
at Baltimore, Md, on the Goth and 21st.
RindS.-The highest winds 40 miles per hour
and over) were reported from Tennessee, Wyo-
ming, New Mexico, Montana, North Carolina,
Virginia, Minnesota, New Jersey, Massachu-
sets, Texas and Vermont. The highest meas
ured velocity so miles per hour occurred at
Hatteras, n. c., and Norfolk, Va, on the 22d.
LEGAL storms occurred in Virginia on the 21st,
North Carolina, 21st; Maryland, 22d; Ohio,
18th; Pennsylvania, Goth and 22d. Loss about
100000.
RiperS-The maximum rise (67 inches) oc-
Cured at Little Rock, Ark, on the Goth. The
maximum fall t35 inches) occurred at Fort
Smith, Ark, on the 25th
Existing COHditi0ns-0ne lOto is passing east
ward over the Gulf of st. Lawrence; another
Is central IN the Ohlo falley, ana lnlro is de-
velopng in the Northwest The principal high
is central in Illinois; another is moving east
ward from Washington Territory, and the
third is central over Florida. Rain and threat
ening weather in the Southwest, Ohio Valley,
the Northwest and Middle States. Elsewhere
generally fair weather.
Facts TO be Remembered.-1. Barometers are
made with mercury as fluid, since it does not
give of sensible vapor at any ordinary tenn
perature. 2. a water barometer would show
atmospheric changes on a much larger scale,
but at a temperature of 750 Fah-., the pressure
of the Yapor in the tube above the water would
depress its level one foot. 3. At the South
Kensington Museum, England, there is glyee.
rine barometer, % feet in length, the rise OF
fall of one inch in a mercurial column being
represented by about 10 inches of the glycerine
column. 4. A pressure represented by hight
of the mercurial barometer of 30 inches may
be considered as made up as follows: The
pressure due to nitrogen 23.36 inches to oxy.
gen 6.1S, TO aqueous vapor 0.44 inches, and tC
carbonic acid 0.02 inches. 5. Barometers in
general use at sea are either mercurial or
aneroids, the former being the more accurate
and the latter the more sensitive.