The Saffir-Simpson Hurricane Damage Potential Scale
Scale Number | Central Pressure mb inches |
Wind Speeds mi/hr knots |
Storm Surge feet meters |
Observed Damage |
1 | >=980 >=28.94 | 74-95 64-82 | 4-5 ~1.5 |
some damage to trees, shrubbery, and unanchored mobile homes |
---|---|---|---|---|
2 | 965-979 28.50-28.91 | 96-110 83-95 | 6-8 ~2.0-2.5 | major damage to mobile homes; damage buildings' roofs, and blow trees down |
3 | 945-964 27.91-28.47 | 111-130 96-113 | 9-12 ~2.5-4.0 | destroy mobile homes; blow down large trees; damage small buildings |
4 | 920-944 27.17-27.88 | 131-155 114-135 | 13-18 ~4.0-5.5 | completely destroy mobile homes; lower floors of structures near shore are susceptible to flooding |
5 | <920
<27.17 |
>155 >135 |
>18 >5.5 |
extensive damage to homes and industrial buildings; blow away small buildings; lower floors of structures within 500 meters of shore and less than 4.5 m (15 ft) above sea level are damaged |