The Saffir-Simpson scale classifies hurricanes from Category 1 to Category 5 based on maximum sustained wind speed. Storm surge — separate from the wind category — is the leading cause of hurricane deaths.
Storm surge
Minimal
Some damage to trees and power lines. Little structural damage.
34–63 kt
Storm surge
4–5 ft
Very dangerous winds. Power outages possible for days. Some roof, siding, and tree damage.
64–82 kt
Storm surge
6–8 ft
Extremely dangerous winds. Near-total power loss for days to weeks. Roofs and siding damaged.
83–95 kt
Storm surge
9–12 ft
Devastating damage. Major roof and structural damage. Electricity and water may be unavailable for weeks.
96–112 kt
Storm surge
13–18 ft
Catastrophic damage. Well-built homes can sustain severe damage. Most trees snapped or uprooted.
113–136 kt
Storm surge
18+ ft
Catastrophic. High percentage of homes destroyed. Total power loss for weeks to months. Area uninhabitable.
137+ kt
Important notes
Source: National Hurricane Center / NWS
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