Velocities MPH 



to 5 



6 to 10 



II to 20 



21 to 30 



3 I and over 



Based on 6-hour readings over an 

 8-year period from 1 July 1936 to 

 31 July 1946, by ttie U.S. Weattier 

 Bureau at West Palm Beach, Florida 

 ( 3.5 miles west of beach ) 



Figure 9. Average direction, duration, and velocity of winds for 

 1 year at West Palm Beach (from U.S. Congress, 1948). 



22 



