The National tribune., 1889-01-10
TIE WEATHER
Notable Occurrences for the Week
Ending Jan. 5, 1889.
BY LIEUT.. JOHN P FINLEY, Z. S. SIGNAL
SERVICE

correspondence invited suggestions desired
ana information cheerfully furnished. Everv eg-
.of. sLlployea 70 make this Bureau Of practical uss
10 the readers OF The NATIONAL TRIBUNE An
communications should be aaaresssd-IE- e-ff5e-
The NATIONAL TRIBUNE Office, Washington. 10 oil
Lows, or AREAS OF wARsl, MOIST AIR. Cloudy
WEATHER, WITH GENERAL RAIN or snow
WITH HIGH WINDS.
Two such areas traversed Canada north az
5he lakes, slightly affecting the weather Of the
latter region from Dee 80 to jan f. Another
area moved nOrtheasterly from the Guif. with
nigh winds and heavy rains along the Gulf and
atlantic coasts. Average progressive velocity
eastward about % miles per hour. Average
duration three DAYS
HIGHS, Or AREAS OF COLD. DRY AIR AND GEN
ERALLX CLEAR WEATHER, WITH MODERATE
WINDS.
one such area entered the United States over
Montan2 on Dec. 30 moving southwark to
1daho and Wyoming where it still remains
central Average progressive velocity east
ward about i've miles per hour Duration
seven days.
TEMPERATURE
The greatest fail in "A hours (2OaJ occurred
at Brownsville, Tex, on the 3Oth. and at Dubu-
que, Iowa, and EastpOrt. Me-, on the Sd. The
greatest rlss l34'} occurred at Chatham and
Quebec, Canada, on the 3Ist
The maximum 1907 occurred at Key Vest.
Fla, on the lst, and the minimum (12o below
zero occurred at Helena, Mont, on the 2I5s
and ID.
PRECIPITATION.
Rain or snow has been reported from every
state and Territory except Colorado. Arizona
ana Utah. The heaviest lover one inch in "a
hours was reported from Texas, Georgia. Flor
ida, Louisiana, Alabama Tennessee. North
carolina and Virginia. The maximum amouns
IN p hours ass iHchcs) fell at Titusvile Fla,
on the 4th
Heavy and destructive winds we're renorted
from New York, Florida, Georgia, PennsyIva.
ma Massachusetts,, Connecticut aHd Montana.
L ne highest velocity 80 miles per hour occur
red at Block Island, Mass, on the 5sh.
RIVERS.
The maximum rise l55 inehesl occurred az
Augusta, Ca, on the 9TH, and the maximum
fall z inchesJ occurred in Arkansas at Fort
smith on the 3lst and at Little Rock on ths
EXISTING CONDITIONS.
lo'0 is entering the United States oven
Montana, and another is leaving over VirO
gina and Maryland. Generally clear and fsif
weather, except along the Atlantic Coast and
IN the Northwest.
FACTS To BE REMEMBERED.
1. The vapOr of water is a constituents pars
OF the atmosphere but exists in variable pro.
portion, from almost absolute dryness to one.
twentieth or moro Of the whole. Its weight ia
usually expressed in grains per cubiefo0t. A
measure Of this weight by the barometer would
be expressed in inches and decimals Of en- inch.
2. Any Increase in the amount of aqueous
vapor in the air necessarily augments the
weight of the atmosphere, considered as a
whole, but does not necessarily affect the ba-
Tometer where the evaporation is taking place.
5. The cause Of the falling Of the barometer
at and about the center of a storm or low press
ure area is rather a complicated one. being de-
pendent upon ~ the centrifugal circulation OF
the air, ~ the rotation Of the earth. and t3)
the diminished density of the air in motion.