INSUFFICIENT DATA 



yl 1 I I I I 1 ' 

 Insufficient data 



%|^ 





^ 



947 



-% 



1771 



•^ 



I , , , i m 





^ 



LEGEND 



KNOTS 

 b K* '1^ •> 



NUMBER OF .-lt)7k^^^^ -A' V 



OBSERVATIONS ' <* —^^—1 



* a 3 t J 4 ?\7 

 % BEAUFORT 0-1 J ' BEAUFORT 



^FflSSISLv- 



ROSE SCALE (PERCENT FREQUENCY) 



DOUBLE CIRCLE INDICATES THEORETICAL WIND ROSE. 





^ 



^ 



^ 



WIND SPEED SUMMARY (ALL DIRECTIONS) 

 BEAUFORT FORCE 



17a 



"k 



PERCENT 



'1-^^^1"^■ 



^ 



••i-r-i-r- 



i—r-i-T" 



Figure D.4. Wind roses giving percent frequency of speed and direction for the northeastern Pacific 

 north of 30°N for January. (U. S. Navy sources). 



249 



