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Introduction to
*Hurricahes/ar@ the planet's
most ferocious storms.
They are known as cyclones
in Australia and typhoons in
southeast Asia.
*They bring massive waves
and wind speeds that can gust
up to 186 mph.
*Hurricanes are not the
normal storms created when
tel aah tices Cnn BaiaA
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Birth of a Hurricane
°A hurricane is made up of
bands of thunderclouds that
spin around a clear, still center
called the eye.
¢Winds blowing across the
warm seas close to the equator
suck up heat and water vapor
to form the storms that produce
hurricanes.
*The swirling mass of
thunderclouds is set spinning
by the rotation of the earth and
by winds from the poles
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Landfall
*The strength of the wind can tear
down trees and flatten buildings.
*Hurricanes can also cause a rise in
the ocean level or storm surge, whi h
عموع اه
Andrew landfall
in Florida in
August 1992.
*More than
100,000 homes
were damaged
such as this
trailer nark that
صفحه 6:
Public Awareness
*In the early part of this century, coastal
residents may have had less than a day
to prepare or evacuate their homes from
an oncoming hurricane.
*Today these same locations receive
warnings to evacuate from one to two
days in advance.
*Meteorologists and the public rely on
hurricane hunters to learn more about
the hurricane.
*They do this by flying aircraft equipped
with weather instruments straight into
the middle of these powerful storms.
*Hurricane hunters are operated by both
the Air Force Reserve based at Keesler Air
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How Are They Named
*Since 1953, the Tropical Prediction
Center has produced lists of names for
hurricanes. As a tropical depression
develops into a tropical storm it is given
the next available name on the list,
which is prepared in alphabetical order
and alternates from between male and
female names. The list for 2007 is listed
Jerry Tanya
Karen Van
Lorenzo Wendy
Melissa
Noel
Olga
Pablo
Rebekah
Sebastian
Barer:
Barry
Chantal
Dean
Erin
Felix
Gabrielle
Humberto
Ingrid
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*Hurricane Katrina hit the U.S.
on August 29, 2005.
*Winds of 140 mph created a
30-foot storm surge.
*Water breached the dam that
protected the city of New
Orleans and flooded the low-
lying coastlines of Louisiana,
Alabama, and Mississippi.
*With the damage estimated
at more than $200 million, and
more than one million people
forced to leave their homes,
Katrina is the most expensive
صفحه 10:
Damage to Long Beach, MS
Hurricane Katrina 2005
Russell
Ave.
Best
Western
Hotel Slab
—
McDonald’s
sign still
stands but
restaurant is
gone.
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Damage to Long Beach, MS
Hurricane Katrina 2005
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Damage to Long Beach, MS
Hurricane Katrina 2005
5 , 7 / د
First Presbyterian Church on Hwy.
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Damage to Long Beach, MS
Hurricane Katrina 2005
Grand Casino in Gulfport
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Stages of Development
from tropical depression to hurri
Hurricanes evolve through a life cycle of stages from birth to death. A
tropical disturbance in time can grow to a more intense stage by
attaining a specified sustained wind speed. The progression of tropical
disturbances can be seen in the three images below.
Depression
Tropical
Depression
Tropical Storm Hurricane
Hurricanes can often live for a long period of time - as much as two to
three weeks. They may initiate as a cluster of thunderstorms over the
- tropical ocean waters. Once a disturbance has become a tropical
depression, the amount of time it takes to achieve the next stage,
tropical storm, can take as little as half'a day to as much as @ couple of
days, It may not happen at all. The same may occur for the amount of
time a tropical storm needs to intensify into a hurricane. Atmospheric
and oceanic conditions play major roles in determining these events.
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Satellite Image
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Resources:
*Kingfisher Knowledge Hurricanes
Tsunamis, and Other Natural Disasters by
Andrew Langley
ehttp://ww2010.atmos.uiuc.edu/(Gh)/
guides/mtr/hurr/grow/home.rxml
*Pictures of Long Beach, MS by Dustan
Sanders
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