=Ge= 
Atmospheric Correlations 
According to the initial hypothesis the charts should furnish a partial 
predictor of the hurricane season if the analysis uncovers definite anomaly 
eenters which travel in relatively steady state over several months. Excepting 
the Gulf of Mexico the frequent existence of such centers has indeed been demon= 
strated but the hurricane correlations have failed to materialize. 
Of course, there were further handicaps. In particular, the anomaly 
analysis does not cover the whole region of hurricane formation and conditions 
far upstream are quite unknowne This difficulty was realized before the work 
was begun; but we thought that the available data should give a fair indications 
For the western part of the hurricane region temperatures upstream exist in 
many yearse Moreover one can compare sea temperatures and hurricane frequencies 
on a contemporary basise 
Many correlations were carried out, for the area as a whole and for 
smaller portions. Since these correlations proved unsuccessful they will not 
be discussed furthere It should be noted, however, that only a partial corre= 
lation was expectede Atmospheric circulation anomalies should furnish another 
indicator, even though circplation anomalies and sea temperatures may also be 
partly correlatede For the purpose of studying the relation between hurricanes 
end circulation in the subtropics and temperature westerlies, monthly sea-level 
pressure anomalies (1899-1939) were obtained through courtesy of the Extended 
Forecast Section of the United States Weather Bureaue These were analyzed and 
compared with ocean temperatures and hurricane frequencies. One notes quickly 
that there is some tendency for hurricane frequency to be low if in late spring 
the subtropical anticyelone has above average strength with east-west elonga= 
tione The lag correlation, however, is not good enough for forecasting pur- 
