Strong Gale Storm Hurricane Calm
Strong Breeze Hurricane Calm Light Air
100 200 500 50
30 50 100 10
0 to 12 0 to 24 0 to 36 0 to 6
Strong Breeze Gale Violent Storm Moderate Breeze
Mercalli Scale deciBel Scale Beaufort Scale Richter Scale
Air Pressure Sea Conditions Humidity Wind Speed
12 15 18 9