The Wichita daily eagle. [volume] (Wichita, Kan.) 1890-1906, 1897-05-27
Tho Storm.Ceatar.

L
law to the effect that a wind moving In
right line along the surface Of the earth
7, in any direction tends to have its course
detected owing to the earth's rotation. to
the right hand in the northern, and to the
left hand in the southern. hemispheres Ii
became clear that here is a key to the
phenomena of atmospheric circulation, from,
the great polar~equatorial maeIstrom which
nlanifests itself in the trade winds, to the
most circumscribed rifle which is an
.nounced as local storm. And the more
the phenomena were studied. the more
striking seemed the parallel between the
greater malestrom and these lesser eddies.
Just as the entire atmospheric mass of each
hemisphere is seen, when viewed as whole
TO be carried in a great whirl about the
pole Of that hemisphere, so the local dis
turbances within this great tide are found
always to take the form Of whirls about
a local storm centre-which storm centre
meantime, is carried along In the major
current, as one often sees a little whirf.
pool in the water swept along with the
main current of the stream. Sometimes.
indeed the local eddy, caught as Il were
in an ancillary current of the great polar
stream. is DETECTED from its normal course
and may seem to travel against the streamk
but such deviations are departures from
the rule. In the great majority of cases,
for example, in the north temperate zone,
a storm centre. with its attendant local
wh!rl )trayels to. the northeast, along the
main current OF the anti-trade wind o.
which II IS a part: and though exceptions
ally its course may be to the southeast
instead It almost never departs 50 wide
iy from the main channel as 10 progress
to the westward. Thus 1t IS that storms
sweeping over the United States can be
announced .as a rule. at the seaboaEd in
advance of their coming BY telegrsphio
from the interior, while
similar storms come TO Europe of The
ocean unannounced. Hence the more
practical availability Of the forecasts of
weather. bureaus in the former country
But these local wh,ris. Ii must be under
stood are local only in a very general
sense OF the word. inasmuch as a single
one may be more than thousand miles
in diameter, and small one IS two or
three hundred miles across But quite
without regard to the size fine whirl the
air composing u conducts itself always IN
one of two ways. It never whirls IN
eoncentric circles; 1t always either rushes
IN toward the centre in a descending spiral
IN WHICH CASE IL Is caLeQ . CyC1Uue. " II
spreads out from the centre IN a widening
spiral. IN which case II Is called an anti
cyctone. The word cycsone b associa;ei
IN popular ph-sseOiogy with terrific storm.
bat II has no ouch restriction IN technical
usage. 4 gentle zephyr diving sowzrt
. '-sirm centre > t,ur ~ much q cy-
eione "a the ueteroioxtse as q ne wn,rf
q West Indian hurricane
Indeed. il Is 10. properly the wind iisea |
that is called the cyclone IN either case.
bat the entire systAn OF whirs-.ncluiins
she storm centre Itself. where there may
be 70 wind az all
What, then, IS this storm center. Merely |
an area OF low baronetrsc preUurear
area where the air has become Lighter thar |
the air OF surrounding regions Cnfer |
influence Of Sr&risatton the air seeks lis (
level Just as water does. Q othe heavy air |
comes flowing n from all sstss towards |
The low pressure area. which this becomes |
a storm centre But the snd1shinz cur /
rents never come straight "a the1- marx /
n accordance with Feyrers law. they are /
detected 20 he eight. ard TIE result. an /
viii readily be seen. must be vortex L
current which v.tris always n sne G..
rec.soa. namely. from ee- 70 rEai. or q
,ae 6f-ect.on opposite TO hat a. the eAncs
N a watch held with .ts tace Upward A
person standing With rs back 20 tie vszt
n. the storm ceaser TO hb seex-FreE Ne
Progress Of he cezsry. by
He.ry Sni;h w-iitnx - D. N Ha<2rs
Aaeazine sox June