Hurricane Categories & Damage
Officials from NOAA and the Federal Emergency Management Agency advised residents in Atlantic and Gulf Coast states to be prepared throughout the season, which runs June 1 through November 30.
LI Hurricanes and Tropical Storms with
100,000 or More Customers Affected 1971 to 2008
| Storm Name/Type | Dates |
Customers Affected |
% Customers |
Duration (days) |
| Hurricane Doria (Cat-1) | 08/28/71 | 349,000 | 44% | 3.5 |
| Hurricane Belle (Cat-1) | 08/09/76 | 533,000 | 61% | 4.7 |
| Tropical Storm David | 09/06/79 | 216,000 | 23% | 2.5 |
| Hurricane Gloria (Cat-1) | 09/27/85 | 750,000 | 78% | 11.6 |
| Tropical Depression Hugo | 09/22/89 | 107,000 | 11% | 1.7 |
| Hurricane Bob (Cat-2) | 08/19/91 | 478,000 | 47% | 4.7 |
| Tropical Storm Floyd | 09/16/99 | 149,000 | 14% | 1.5 |
| Tropical Depression Ernesto | 09/02/06 | 134,000 | 12% | 2.7 |
Categories and Damages
- Tropical Storm
No real damage to building structures. Tree limbs and branches broken; some whole trees uprooted. Minor flooding due to heavy rains tides possible. - Cat-1 Hurricane
Minor damage to structures, primarily to poorly constructed and unanchored mobile homes. Shrubbery and trees broken or uprooted. Some coastal road flooding, as well as minor pier damage. - Cat-2 Hurricane
Damage to roofing material, doors and windows as well as mobile homes and inadequately anchored signs. Substantial damage to shrubbery and trees with some trees blown down. Considerable coastal flooding and beach erosion. - Cat-3 Hurricane
Some structural damage to small residences and utility buildings, with a minor amount of curtainwall failures. Buildings that lack a solid foundation, such as mobile homes, are usually destroyed. Significant damage to shrubbery and trees with foliage blown off trees and large trees blown down. Severe flooding near the coast destroys smaller structures, while larger structures are hit by floating debris. Additionally, terrain may be flooded well inland. - Cat-4 Hurricane
Extensive curtainwall failures, with some complete roof structural failures on small residences. Complete destruction of mobile homes. Extreme damage to shrubs and trees. All signs are blown down. Extensive damage to doors and windows. Catastrophic coastal and inland flooding with major beach erosion.
* Estimates are HIGHLY variable & dependent on storm track, location of landfall AND duration of winds.
