Saffir-Simpson Scale

hurricane storm shutters, window shutters for hurricane protection

Type Category Pressure (mb) Winds
(knots)
Winds
(mph)
Storm Surge
(feet high)
Depression TD ----- < 34 < 39  
Tropical Storm TS ----- 34-63 39-73  
Hurricane 1 > 980 64-82 74-95 4-5
Hurricane 2 965-980 83-95 96-110 6-8
Hurricane 3 945-965 96-112 111-130 9-12
Hurricane 4 920-945 113-134 131-155 13-18
Hurricane 5 < 920 >134 >155 >18

NOTE: Pressures are in millibars.

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