The leader., 1895-11-05

TIE rrssss Of Moss Of rhes Lssa - the
81 Lawrence River.
One Of the chief snteres.A aside
from the values they have IA resress
20 forecasting. In the strdS "a charts
OF storm tracks, consists IN comparing
them month with month, In order "a
observe the changes that take plsse
with the progress Of the ee.scha II
was shc,~n on The August map that
t.se sums.sst storms, In the majority OF
ts--., originate In three places, In Al
berta, Colorado, and the West Indies.
On the other hand. in September the
chart indicates that they arise In ct
leust six places. We have one set Of
storms generating In Alberta. at which
thirty-eight were observed in ten years,
there were eleven noted that entered
the North Pacific coast of the United
States; next Ave were observed to com
nlence their activity on the northern
plateau of the Rocky mountain dis
trict, also seven developed over the
ISOLATED plateau of Colorado; Eve ap.
peared on the west coast of the gulf OF
Mexico; finally seven tropical hurri-
canes came Ia from the West Indies
| These all pursued their paths to the
gulf of St Lawrence, in the neigh Dor.
hood of which they left the Geld OF Oh
servation. The Alberta storms run
along the northern boundary OF the
United States Ia the northwest, cross
the lake region. and advance down the
St Lawrence valley, reaching the gulf
I L., IL -. al
served that these tracks have a strong
tendency TO loop down nc;r the Begin
ming OF their paths over the Rocky
mountain slope into North and South
Dakota, whence they recover the main
track in the neighborhood of Lake
superior The North Pacific storms.
4 those from Wyoming and Idaho. as
| well as the Colorado storms. in tweu-
ty-four hours find themselves on the
main track in the lake region. whence
! they go to the gulf OF St Lawrence.
These four groups belong very clearly
| to one family, and have their rise on
| the northward side of the great high.
| pressure belt that extends around the
! globe in about latitude thirty degrees,
thirty-five minutes, except where IL IN
| detected by the continento. In the
United States this belt leaves the
| Atlantic coast near South Carolina
| but il enters this country In northern
California or Oregon, nearly ten de.
grees further north. The detection
thus observed is no donbt largely due
to the elevations of the Rocky noun
tain districts.
On the southern side of the high belt
! we find another system of storm gen.
Grafton, because the air of this bels
must flow off on both sides, south as
we'll as north, though the quantity re-
/ turned to the southwark Is less than
that to the northward. Thus, we find
the five gulf of Mexico storms. which
usually advance to the gulf of St Law.
renee over the Atlantic ties. also, %s
have the West Indian storms, which
are developed further east, in the calm
zone of the Doldrun,s, move westward
| awhile In the westerly tropical cur
| rent, recurve on the western edge OF
the great Atlantic anti-cycione, nag.
ging the periphery of the same, and
also skirt the Atlantic coast, unless by
the obstruction of high baromete,
they enter the gulf states before tbey
recurve. The errotic movements OF
the west gulf and the cast gulf storms
consist in their effort to break through
! the high-pressure belt It is during
this passage, when they are most Wig.
! orously fed, that they attain the de-
| structive violence SO often noted In
the southern states Wash. yton Sta.