Homes in South Florida damage by Hurricane Andrew on Aug. 24, 1992-
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New Orleans, La. -- While no city has been more impacted by hurricanes than New Orleans, most people in south Louisiana have never experienced the wind power of a major hurricane.
Katrina came ashore in Plaquemines Parish as a Category Three, but the winds in New Orleans made it seem more like a Category Two from the standpoint of winds.
In fact, unless you live in Plaquemines, or the extreme eastern parts of St. Bernard and St. Tammany, you have not experienced the wind power of a major hurricane.
Here are some of the effects of hurricane force winds, according to a NOAA web site:
| Category | Sustained Winds | Types of Damage Due to Hurricane Winds |
| 1 |
74-95 mph
64-82 kt
119-153 km/h |
Very dangerous winds will produce some damage: Well-constructed frame homes could have damage to roof, shingles, vinyl siding and gutters. Large branches of trees will snap and shallowly rooted trees may be toppled. Extensive damage to power lines and poles likely will result in power outages that could last a few to several days.
|
| 2 |
96-110 mph
83-95 kt
154-177 km/h |
Extremely dangerous winds will cause extensive damage: Well-constructed frame homes could sustain major roof and siding damage. Many shallowly rooted trees will be snapped or uprooted and block numerous roads. Near-total power loss is expected with outages that could last from several days to weeks.
|
3
(major) |
111-129 mph
96-112 kt
178-208 km/h |
Devastating damage will occur: Well-built framed homes may incur major damage or removal of roof decking and gable ends. Many trees will be snapped or uprooted, blocking numerous roads. Electricity and water will be unavailable for several days to weeks after the storm passes.
|
4
(major) |
130-156 mph
113-136 kt
209-251 km/h |
Catastrophic damage will occur: Well-built framed homes can sustain severe damage with loss of most of the roof structure and/or some exterior walls. Most trees will be snapped or uprooted and power poles downed. Fallen trees and power poles will isolate residential areas. Power outages will last weeks to possibly months. Most of the area will be uninhabitable for weeks or months.
|
5
(major) |
157 mph or higher
137 kt or higher
252 km/h or higher |
Catastrophic damage will occur: A high percentage of framed homes will be destroyed, with total roof failure and wall collapse. Fallen trees and power poles will isolate residential areas. Power outages will last for weeks to possibly months. Most of the area will be uninhabitable for weeks or months. |
