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Types
Of Hurricanes
Tropical
Storm
Winds 39-73 mph
Category
1 Hurricane
winds 74-95 mph (64-82 kt)
No real damage to buildings. Damage to unanchored
mobile homes. Some damage to poorly constructed
signs. Also, some coastal flooding and minor pier
damage. Examples: Irene 1999 and Allison 1995
Category
2 Hurricane
winds 96-110 mph (83-95 kt)
Some damage to building roofs, doors and windows.
Considerable damage to mobile homes. Flooding
damages piers and small craft in unprotected moorings
may break their moorings. Some trees blown down.
Examples: Bonnie 1998, Georges(FL & LA) 1998
and Gloria 1985
Category
3 Hurricane
winds 111-130 mph (96-113 kt)
Some structural damage to small residences and
utility buildings. Large trees blown down. Mobile
homes and poorly built signs destroyed. Flooding
near the coast destroys smaller structures with
larger structures damaged by floating debris.
Terrain may be flooded well inland. Examples:
Keith 2000, Fran 1996, Opal 1995, Alicia 1983
and Betsy 1965
Category
4 Hurricane
winds 131-155 mph (114-135 kt)
More extensive curtainwall failures with some
complete roof structure failure on small residences.
Major erosion of beach areas. Terrain may be flooded
well inland. Examples: Hugo 1989 and Donna 1960
Category
5 Hurricane
winds 156 mph and up (135+ kt)
Complete roof failure on many residences and industrial
buildings. Some complete building failures with
small utility buildings blown over or away. Flooding
causes major damage to lower floors of all structures
near the shoreline. Massive evacuation of residential
areas may be required. Examples: Andrew(FL)
1992, Camille 1969 and Labor Day 1935.
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