One
|
Winds 74 to 95 mph |
No real damage to building structures. Damage primarily to unanchored mobile homes, shrubbery, and trees. Also, some coastal road flooding and minor pier damage. |
Two |
Winds 96 to 110 mph |
Some damage to roofing materials, doors, and windows. Storm surge 6 to 8 feet above normal. Considerable damage to vegetation, mobile homes, and piers. Coastal and low-lying escape routes flood two to four hours before arrival of storm's center. Small craft in unprotected anchorages break moorings. |
Three |
Winds 111 to 130 mph |
Storm surge 9 to 12 feet above normal. Some structural damage to small residences and utility buildings with a minor amount of curtain wall failures. Mobile homes are destroyed. Flooding near the coast destroys smaller structures with larger structures damaged by floating debris. Terrain continuously lower than five feet above sea level may be flooded inland eight miles or more. |
Four |
Winds 131 to 155 mph |
Storm surge 13 to 18 feet above normal. More extensive curtain wall failures with some complete roof structure failure on small residences. Major erosion of beach. Major damage to lower floors of structures near the shore. Terrain continuously lower than 10 feet above sea level may be flooded, requiring massive evacuation of residential areas inland as far as six miles. |
Five |
Winds greater than 155 mph |
Storm surge greater than 18 feet above normal. Complete roof failure on many residences and industrial buildings. Some complete building failures with small utility buildings blown over or away. Major damage to lower floors of all structures located less than 15 feet above sea level and within 500 yards of the shoreline. Massive evacuation of residential areas on low ground within five to 10 miles of the shoreline may be required. |