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What to Expect from Hurricane Cat 2-3-4 from Saffir-Simpson Scale:

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KoKo Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Sep-23-05 04:15 PM
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What to Expect from Hurricane Cat 2-3-4 from Saffir-Simpson Scale:
http://64.233.161.104/search?q=cache:niHWwMbhx9AJ:www.answers.com/topic/saffir-simpson-hurricane-scale+Category+3+Hurricane+Effects&hl=en

Saffir-Simpson hurricane scale

A 1-5 rating based on the hurricane's present intensity. This scale is used to give an estimate of the potential property damage and flooding expected along the coast from a hurricane landfall. Wind speed is the determining factor in the scale, as storm surge values are highly dependent on the slope of the continental shelf in the landfall region. Note that all winds are using the U.S. 1-minute average.

Category One Hurricane:

Winds 74-95 mph (64-82 kt or 119-153 km/hr). Storm surge generally 4-5 ft above normal. No real damage to building structures. Damage primarily to unanchored mobile homes, shrubbery, and trees. Some damage to poorly constructed signs. Also, some coastal road flooding and minor pier damage. Hurricanes Allison of 1995 and Danny of 1997 were Category One hurricanes at peak intensity.

Category Two Hurricane:

Winds 96-110 mph (83-95 kt or 154-177 km/hr). Storm surge generally 6-8 feet above normal. Some roofing material, door, and window damage of buildings. Considerable damage to shrubbery and trees with some trees blown down. Considerable damage to mobile homes, poorly constructed signs, and piers. Coastal and low-lying escape routes flood 2-4 hours before arrival of the hurricane center. Small craft in unprotected anchorages break moorings. Hurricane Bonnie of 1998 was a Category Two hurricane when it hit the North Carolina coast, while Hurricane Georges of 1998 was a Category Two Hurricane when it hit the Florida Keys and the Mississippi Gulf Coast.

Category Three Hurricane:

Winds 111-130 mph (96-113 kt or 178-209 km/hr). Storm surge generally 9-12 ft above normal. Some structural damage to small residences and utility buildings with a minor amount of curtainwall failures. Damage to shrubbery and trees with foliage blown off trees and large trees blown down. Mobile homes and poorly constructed signs are destroyed. Low-lying escape routes are cut by rising water 3-5 hours before arrival of the center of the hurricane. Flooding near the coast destroys smaller structures with larger structures damaged by battering from floating debris. Terrain continuously lower than 5 ft above mean sea level may be flooded inland 8 miles (13 km) or more. Evacuation of low-lying residences with several blocks of the shoreline may be required. Hurricanes Roxanne of 1995 and Fran of 1996 were Category Three hurricanes at landfall on the Yucatan Peninsula of Mexico and in North Carolina, respectively.

Category Four Hurricane:

Winds 131-155 mph (114-135 kt or 210-249 km/hr). Storm surge generally 13-18 ft above normal. More extensive curtainwall failures with some complete roof structure failures on small residences. Shrubs, trees, and all signs are blown down. Complete destruction of mobile homes. Extensive damage to doors and windows. Low-lying escape routes may be cut by rising water 3-5 hours before arrival of the center of the hurricane. Major damage to lower floors of structures near the shore. Terrain lower than 10 ft above sea level may be flooded requiring massive evacuation of residential areas as far inland as 6 miles (10 km). Hurricane Luis of 1995 was a Category Four hurricane while moving over the Leeward Islands. Hurricanes Felix and Opal of 1995 also reached Category Four status at peak intensity.


http://64.233.161.104/search?q=cache:niHWwMbhx9AJ:www.answers.com/topic/saffir-simpson-hurricane-scale+Category+3+Hurricane+Effects&hl=en


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phantom power Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Sep-23-05 04:17 PM
Response to Original message
1. What's harder to predict is flood damage.
The bulk of damage from most tropical systems is actually rain/flooding. Even a sub-hurricane tropical storm can do enormous damage from flooding.
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KoKo Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Sep-23-05 04:25 PM
Response to Reply #1
2. I know ...they do address this on the Saffir-Simpson Scale...it's there.
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KoKo Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Sep-23-05 05:15 PM
Response to Original message
3. Kick...in case anyone is interested .
:kick:
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