correot winds, the resulting etomic cloud might leed to e greet risk
of rediologiczlcontemhetion.
Beceuse of the sc6rcity of wind dcte
to very high lemlg, i.e., 60,000 to 80,000 feet, the problem of forecasting winds to these sltitudes is a difficult one.
A few signfiicmt forecasting aids were noted which m~ybe helpful in firthek studies of tropicel weether forecasting.
e. During the presence of much middle or high cloudiness,the
emounts of low clouds are usually quite smell.
b.
Convergence zones form between winds of NE end ENE, ENE end
E, end E and ESE directions. In generel, these zones tend to stey relatively stationery. Occesiomlly however, they move in the direction
of the resultent wind. When the clash of winds dissppeer, the convergence zone dissipates repidly.
c. Cold fronts in the Eniwetok eree era usually characterized
by series of lines of convergence. No solid cloud deck of wide extent
was noted such as is generally encountered b temperate lctitudes.
d.
Cirrus clouds eppeer to prewil during all aeesons. The
cm+w of the cirrus is not known. During both the SDSTONE
end
CRSSSRO}DS Operations, none of the weather reconnaissanceeircreft
ever reached the cirrus level. It is thus concluded thet this cbud
be very high end generelly ebova35,000 feet. During the
deckwst
Y-day test, e veil of cirrostnetuswes loc.etedto the east of Eniwetok.
e.
One of the best measures oftha intensity of the trades
77
SEOTION XII
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