Michael's  Hurricane  Page

Hurricane Classifications

INDEX:

Classification of Tropical Systems

Tropical Depression  (Winds of 20-34kts or 23-39mph with a "closed" circulation)
Tropical Storm(named)(35-64kts or 40-74mph)
Hurricane            (65+kts or 74+mph) 

 

Hurricane Classifications / Saffir-Simpson Scale
Category  
1 
2 
3 
4 
5 
 		 Winds kts 
65 - 82 
83 - 95  
96 - 113 
114 - 135 
>135 
 		 Winds mph  
74 - 95 
96 - 110 
111 - 130 
131 - 155 
>155 
 		 Pressure mb
 >980 
965-979 
945-964 
920-944 
919 
 		 Pressure  
>28.94 
28.50-28.91
27.91-28.47
27.17-27.88
 27.16 
 		 Storm Surge
4 - 5 Ft 
6 - 8 Ft 
9 - 12 Ft 
13 - 18 Ft 
>18 Feet