#52),
even to the winds.
For exomple, of Ocean Island, south of the Marshalls, west
winds sometimes replace the more usual ‘east winds ‘for ‘several days, but ‘the
‘change Is only ‘slightly ‘connected with ‘season ond ‘it ‘is ‘incalculable ‘In ‘its ‘ec‘currence. ‘from year ‘to year, ‘Since .1900 cthere ‘have ‘been years ‘In--which -westerlies prevailed at Ocean ‘Island on :as ‘few ‘os ‘2 ‘dnd :es ‘many ‘os 167. days... One
‘could ‘not, In other ‘words, ‘count on ‘the ‘seasonal ‘occurrence of ‘west ‘winds af ..
that Island ‘In ‘any one yéor, ‘nor plan ‘any ‘military operation ‘there on ‘a ‘statistical
presumption. .
2...
Three Typical Weather Situations:
In the oceanic tropics, as -in high latitudes, cloud systems have been found
associated with specific types of wind systems. However, the connection between
the wind systems and the clouds -is ‘much more obscure and requires -for its dis- .
covery more detailed resedrch.— At ‘first sight -the -surface.wind In the ‘Marshall
Islands, porticularly In the ‘north ‘near Bikini ‘ond -Eniwetok, appears -to undergo ‘very
minor ‘variations, ‘whereas ‘the clouds’ ‘may ‘change greatly ‘In ‘form, ‘amount ‘and hel ght
-from day-to-day... ‘Nevertheless, recent ‘research, based on ‘high ‘level observations
‘token during ‘the ‘series of ‘atomic ‘tests ‘between 1946 and 1952, ‘has ‘revealed ‘thot
‘the ‘cloud ts ‘correlated.-with ‘major ‘wind ‘systems; and ‘that ‘the general ‘weathpr situa- .
‘tigns from day ‘to day ‘foll into three ‘fairly well-marked ‘classes.
1.
1500
Ft Trade Situation