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What
is Lightning?
Lightning
is a form of electrical discharge between clouds or between a cloud and
the ground. The discharge may take place between two parts of the
same cloud, between two clouds, or between a cloud and the ground.
Lightning may appear as a jagged streak, a flash in the sky, or in the
rarer form of a brilliant ball. Thunder is the sound waves produced by
the explosive heating of the air in the lightning channel during the
return.
Lightning
Specifics
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Most
lightning strikes occur either at the beginning or end of a storm.
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The
average lightning strike is six miles long.
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Lightning
reaches 50,000 degrees Fahrenheit, fours times as hot as the sun's
surface.
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A
cloud-to-ground lightning channel can be 2 to 10 miles long.
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Voltage
in a cloud-to-ground strike is 100 million to 1 billion volts.
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-Lightning Specifics -Striking
Statistics -Who's at
Risk?
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Did
You Know?
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Lightning
is underrated as a risk because it usually claims only one or two
victims at a time and does not cause mass destruction of property.
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Lightning
affects all regions. Florida, Michigan, Pennsylvania, North
Carolina, New York, Ohio, Texas, Tennessee, Georgia, and Colorado
have the most lightning deaths and injuries.
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Lightning kills more people on an annual basis than tornadoes, hurricanes or winter storms. It is second only to flash floods in the annual number of deaths caused by storm-related hazards.
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Damage
costs from lightning are estimated at $4-5 billion each year in the
U.S.
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Around
the earth there are 100 lightning strikes per second, or 8,640,00
times a day.
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What is
commonly referred to as heat lightning, is actually lightning too
far away to be heard. However, the storm may be moving in your
direction.
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There
are approximately 100,000 thunderstorms in the U.S. each year.
Striking
Statistics
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Americans
are twice as likely to die from lightning than from a hurricane,
tornado or flood.
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The
Federal Emergency Management Agency (FEMA) estimates there are 200
deaths and 750 severe injuries from lightning each year in the U.S.
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20% of
all lightning victims die from the strike.
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70% of survivors
will suffer serious long-term effects.
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Annually,
there are more than 10,000 forest fires caused by lightning.
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Who's
at Risk?
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85%
of lightning victims are children and young men aged 10-35 engaged
in outdoor recreation and work activities outside.
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70% of
all lightning injuries and fatalities occur in the afternoon.
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Most
lightning deaths involve people working outdoors and outdoor
recreationists
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Lightning
in remote terrain creates dangerous conditions. Hikers, campers,
backpackers, skiers, fishermen, and hunters are especially vulnerable
when they're participating in these activities.
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Many
survivors of lightning strikes report that immediately before being
struck their hair was standing on end and they had a metallic taste
in their mouth.
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Long-term
injuries from a lightning strike can include memory & attention
loss, chronic numbness, muscle spasms & stiffness, depression,
hearing loss, and sleep disturbance.
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©2000 Outdoors Technologies |
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