The National tribune., 1889-01-24
TIE WEATHER.
Notable Occurrences for the Week
Ending Jan. 10, 1889.
By LIEUT.. JOHN P. FINLEY, Q. s. SIGNAL
SERVICE.

Correspondence invited, suggestions desired,
and information cheerfully furnished. Every eff
fort employed to make this Bureau of practical use
to the readers of THE NATIONAL TRIBUNE. All
communications should be addressed-Wedther,
THE NATIONAL TRIBUNE Office, Washington, ID. q.
LOWS, OR AREAS OF WARM, MOIST AIR, CLOUDY
WEATHER, WITH GENERAL RAIN OR SNOW
AND HIGH WINDS.
Two such areas affected the weather of
the United States, both of which came from the
North Pacific Coast. Average progressive ve-
locity eastward 81 miles. Average duration
four days.
HIGHS OR AREAS OF COLD, DRY AIR AND GEN
orally CLEAR WEATHER, WITH MODERATE
WINDS
Two such areas affected the weather of the
United States, both of which came from British
America north of Montana, and were attended
by the greatest cold thus far experienced dur
ing the Winter. Average progressive velocity
eastward III miles. Average duration 3.5
days
TEMPERATURE.
The greatest fall in "a hours (36o) occurred
at Quebec, Canada, on the 10Th. The greatest
rise (340) occurred at Huron, Dak., on the 10Th.
ter, Fla, on the 18th. The minimum 1867 be-
low zero) occurred at st. Vincent Mimi, and
Winnipeg, Manitoba, on the 18th, the coolest
weather so far this Winter
PRECIPITATION.
Rain or snow has been reported from every
State and Territory. The heaviest lover one
inch in "a hours was reported from Florida,
Wisconsin, California, Arizona, Texas, Kansas,
Arkansas, Tennessee, Illinois, Georgia, Ala
bama, Mississippi, Kentucky, Washington Ter
ritOry and Massachusetts. The maximum in
"a hours 1854 inches) fell at Little Rock, Ark,
on the 18th and 10th.
WINDS.
High winds with some destruction of prop
erty were reported from New York, Florida,
North Carolina coast, Massachusetts, Ohio,
Illinois, Dakota, Minnesota, Michigan, Nebras-
ka, Missouri, Iowa. Wyoming, Montana and
Texas. The highest measured velocity (54
miles per hour occurred at Buffalo, n. Y, on
the 18th.
RIVERS.
The maximum rise (73 inchesl occurred at
Augusta, Ga. on the 18th. The maximum fall
(25 inches) occurred at Cincinnati, o., on the
18th.
EXISTING CONDITIONS.
A l0lU is moving northeastward from Texas,
attended with rain on the southern side and
snow on the northern side of the area. high
is moving eastward from Idaho and Montana,
accompanied by cold clear weather.
FACTS TO BE REMEMBERED.
1. Calico first taught that the air has weight.
MS pupil IOfrlceIil brilliantly demonstrated
this truth by showing the weight of the air will
uphold column of water.
2 Air is an elastic fluid aud its vertical
weight is transmitted in all directions by it as
an elastic pressure.
B. The mercurial barometer, in its elementary
form, consists of a vertical glass tube, hermet-
ically sealed at the top aud opening at its lower
end into basin of mercury.
4. The barometer measures the elastic pres
sure of the air by means of the vertical pres
sure, due to the weight of vertical column of
liquid.
s. The pressure Of the atmosphere is about
lat lbs. on each square inch. and as the specif-
ic gravity of mercury is 1859. and the weight
of cubic inch of water is 252.5 grains, an easy
calculation will show that about 81 feet of
water, or 80 inches of mercury, will counter
balance the pressure of the atmosphere.
Best iodides and vegetable alternatives make