New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1873-08-15
WEATHER REVIEW FOR JULY.
WAR DEPARTMENT,
OFFICE OF TIE CHIEF SIGNAL OFFICER.
sTORMS


OFFICE OF TIE CHIEF SIGNAL OFFIcgR.j
STORMS.
During the month OF July 1873, thirteen OF low
barometer have been recorded the daily weather
maps OF the Signal Office they have general passed
centrally the extreme northern limit OF the United
States This feature has indeed been this year rather
noticeable than in former years. as Is seen by the
July ls7lTh. latitude track, Of Is Of low
ju, ls72-hs mean ,ud. ,ai. Of IA centers Of low
july is73-1hs latitude Of 10 Of low
As In former years during this MONTH so present
pressure apparent beyond Dakota and
Manitoba On most occasions the appearance OF low
barometer in the Northwest has been preceded by
slight barOmetrlc depressions on the c0Osts OF oregon
and California hut II hns been Impossible TO decide
whether the disturbances have passed from tho Pachc
Ocean eastward or have originated IN the ROCKY Noun
tains OF British America
The numerous local storms that are experienced during
the summer months have certain relation To the large
OF high and low barometer TO the Topography OF
the country the position OF the ocean ana Other Dodes
OF water, &c, &C. The local (which are almost
invariably attended with lightning. &c) nave been most
OF high barometer that prevails during July on
the Atlantic between the ATTITUDES OF 100 and 300 north
The region OF next greatest frequency Is In OHIO and
Pennsylvania, where the south and southwest
winds attending the areas OF low pressure rise up
storm frequency dimnishes as we proceed
from the Gulf coast Iorthward over the low
hat country and n0rtnwestward toward the hlgn arlu
plains the other hand, 1t AS we proceed
from the middle and east Atlantic coasts westward up
rapid slope TO the summit OF the Appalachian range
The local storms least frequent the dry plains
west OF the valley OF the Mississippi RIVER and there
indications of region of diminished frequency In
tire northern part OF the Province OF Ontario, though
this may possibly be due to the scarcity OF our stations
in that region.
No winds or special severity have been reported dur
ing this except the tornado Of July at Indian
spOiis. Tie winds nave reached the limit OF high "a
velocity Of 80 miles s, an hour only twice Elm IN
and Northern Minnesota. south and southeast winds
have prevailed IN the Guli states Iowa ana Mnhssoa'
but elsewhere over the country east OF the Rocky ouh
tlns the prevailing winds nave been from the south'
southwest ana west
The total amount OF rain during the month appears To
have been in excess in Indiana in9s ana 4iGnigan
Ontario, also In New England The reports from tne
% az coDtrasted with only S5 inches in July is72
on the other hand the rainfall OF June was 81 inches,
Mnip the TWO we obtain for June and July together in
1872 % inches and in 1873. IT inches deficiency OF
die Atlantic coast over lower Mississippi Valley and
i'm the North West The details OF the rainfall are gwen
for each geographical subdivision IN the accompanying
table, -
The temperature has very generally averaged one OF
two lower than for the corresponding month OF
ls2 hch latter indeed In many places one OF the
warmest on record Compared Win the average o,
many years. the past month seemed 10 nave Deen rom
one to four degrees warmer than the normal temPera
ture over the Middle Atlantic and the Eastern Gulf
states general however, over the rest OF the coun
trv st OF the Rocky Mountains, the temperature has
been slightly below the average the dencehcy amount
ing to two degrees in the valley OF the Mississippi
River. 49,. ~. oooh ,,soeranh,ca,
subdysion the general mean temperature as observed
and as compared with normal values resulting Irom
many years OF observation. . ,.. ,.
The range OF temperature or the uIIelence Det
tbe highest and lowest temperatures Is greatest IN hgh
ana dry localities and least in low and damp regions
THE range increases decidedly with the latitude,
eyen on Atlantic coast phenomena uOuotIess oue
to the greater changes In cloudiness and humldlty
RIVER AND OCEAN TEMPERATUREs
Reports have received for the ast ten Gays OF
,S month from some the stations that have, az the
no0eston Of the United States Commissioner OF FISH
and Fisheries been furnished with apparatus Tor OBJ
serving the temperature OF the water III the rivers
BAYS &c. The results promise to DO Oh senerai eee
geological interest. -. .-.
In general 1t is found that the range or temperature
increases very regularly we proceed IrOu Capo at
teras northeastward. The figures Tor eacn day snow
mat the temperature steadily Increased at boston anu
New london from the 18th the 2Ith. and then began
as steadily TO diminish. TINS chanSe may 20 uuo
"a tidal Influence or change III the warm currents
of the adjacent ocean.
RIVER OBSERVATIONS -,
Tho Red River fell steadily during the entire month.
The Missouri fell almost continuously except az eayoh
worth where during the hrst week OF july INC
ipper Mississippi had declined some nat the hIuuo
river at first stationary OF sIlgntp
ppinS and then began 10 fall steadily the lower por-
on OF the river after falling and rising has again begun
to fall Tho Cumberland has experienced three suuuen
rses and subsequent falls attending three porous "a
rain similar oscillations have occurred IN inc Onlo
snecally large wave having moved from PlttsDurgh to
nisyile between the 9th ana the 10Th of the month
No cautionary signals have been dSpayeo uurhs 'no
month . r,,,,n ,rrrnv ron