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Saffir-Simpson
Scale
Saffir-Simpson Scale for Hurricane
Classification
|
Strength |
Wind Speed
(Kts) |
Wind Speed
(MPH) |
Pressure
(Millibars) |
Pressure
|
Category 1 |
64- 82 kts |
74- 95 mph |
>980 mb |
28.94 "Hg
|
Category 2 |
83- 95 kts |
96-110 mph |
965-979 mb |
28.50-28.91 "Hg
|
Category 3 |
96-113 kts |
111-130 mph |
945-964 mb |
27.91-28.47 "Hg
|
Category 4 |
114-135 kts |
131-155 mph |
920-944 mb |
27.17-27.88 "Hg
|
Category 5 |
>135 kts |
>155 mph |
919 mb |
27.16 "Hg
|
Tropical Cyclone Classification |
Tropical Depression |
20-34kts |
Tropical Storm |
35-63kts |
Hurricane |
64+kts or 74+mph |
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