This is a scale of how hard the winds blow in a hurricane.
 
 
 

                                                  BEAUFORT SCALE
 
 
 
 
AVERAGE FORCE AVERAGE SPEED EFFECTS
                   1          2 smoke drifts
                   2           6 leaves rustle
                   3         10 twigs move
                   4         16 small branches move
                   5         22     small trees sway
                   6         28 large branches move
                   7         35 whole trees move
                   8         43 small branches break
                   9         50 houses damage slightly
                  10         59 trees broken
                  11         70 wide spread damage
                   12         75+ destruction
INDEX