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Category
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Sustained Winds
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Types of Damage Due to Hurricane
Winds
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1
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74-95 mph
64-82 kt
119-153 km/h
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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.
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2
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96-110 mph
83-95 kt
154-177 km/h
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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.
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3
(major)
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111-129 mph
96-112 kt
178-208 km/h
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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.
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4
(major)
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130-156 mph
113-136 kt
209-251 km/h
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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.
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5
(major)
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157 mph or higher
137 kt or higher
252 km/h or higher
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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
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