ona

SULIARY OF wSATHGR STATIC. FOR ERAT sect

l.

mil.

This sumerr presents the weather situstion as existed

prior to, at, end just efter BRAVO shot time, for the genersl arcs
of the Marshall Islands, with specific reference to Bikini an! the
SHRILP shot site.
26

P2Z-SHOT WEATHER.
a.

General Srnostic Situation

(1)

SURFACE - The surface chart wes dominated by a higt pres

sare cell located at apcroximately 34 degrees north 171 degrees
eest with a central pressure of apsroximately 1030 135.

& trcugh,

oriented northeast - southwest la> just off the cozst of U:ipaz.
linimiz pressures in low latituijes lay just slong the ezuztor.

Flow over the Larshall Islands area was the ezst northeast <rade
flow, with no marked regions of convergence or divergence.

Ko. 1).

(Chast

During the preceding several days the high pressure cell

had been moving slowly eastward, with a slight increase in the
central pressure.

(2)

UPPER LEVEL CHARTS.

From approximately 25,000 to §§,000 leet

the flow pattern was dominated by s clockwise rotation cexterec
near 5 degrees north 175 degrees east.

This systec Wes essentially

vertical froz 30,000 to 56,000 feet (Chart Ko. 4). ‘Tne Slow at
these levels, under the influence of this dominant srste= was fros
the west southwest.

at 20,000 feet the doxinamt clecxwise sctatoce

o.-ob
ley mich further to the ezst, with e secondary center locates sist

eee

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