Title: Hurricanes
1Storms
2Produced by
- Andre Victor Weich
- Amy Alvarez
- Vicente Antonio Barrientos
- Kristen Ann Solen
Whispering Pines Elementary
3How a Hurricane Forms
- Hurricanes form in the tropics where the water
and air are warm and moist. There are many
factors which need to be just right in order for
a hurricane to form. Scientists aren't sure why
all these factors are needed but know that they
are important. A study found that out of 608
possible storms only 50 developed into - Tropical storms.
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5How a Tornado Forms
- A tornado begins in a severe thunder storms
called a super cell. A supercell can last longer
than a regular thunderstorm. The same property
that keeps the storm going also produces most
tornadoes. The wind coming into the storm starts
to swirl and forms a funnel. The air in the
funnel spins faster and faster and creates a very
low pressure area which sucks more air (and
possibly objects) into it.
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7Where Are Tornadoes Located
Tornadoes are located all over the world! The
winds can go up to 300 miles per hour! The United
States has the most tornadoes in the world, about
800 per day. In the United States, tornadoes
occur in all 50 states! Every state has just
about 1 to 10 tornadoes a year. A tornado is a
highly concentrated vortex of winds that occur in
thunderstorms. Tornadoes cause billions of
dollars in damage and kill about 50 people each
year!
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9Keeping Track Of A Tornado
- Chasing storms was first done by scientists to
study the thunderstorm environment. Little about
the dynamics and physics of thunderstorms, as
well as lightning, is well understood yet, so in
the interest of research storm chasing is
necessary to keep track of and investigate a
storm and watch it go through its lifecycle
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11The Lives Lightning Takes
Lightning kills more people each year than
tornadoes and hurricanes, making it the second
most frequent weather-related killer in the
United States.
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13How Do Thunderstorms Form ?
Thunderstorms are formed by the uplifting of warm
and humid air. There are many factors that lead
to the uplifting of air, for example, solar
heating in the vicinity of low pressure troughs
when two different air streams meet or when air
is forced uphill.
14Thunderstorm Damage
The white puffy clouds that have been growing all
day are replaced by a greenish sky. A distant
rumble is heard...then another. It starts to
rain. A flash of light streaks the sky, followed
by a huge BOOM. Welcome to a thunderstorm.
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16Wilma destroys homes
- Wilma has destroyed a lot of homes. Roof tops
have been lifted from hurricane Wilma. There were
a lot of floods .
17Striking Lightning facts
- Lightning is essentially a gigantic electrical
spark that results from billions of volts of
natural static electricity. Lightning is usually
associated with thunderstorms and rain.
18Natural Disasters That We Used
- Tornadoes
- Hurricanes
- Thunder Storms
- Lightning
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25How To Prepare
- A natural disaster can happen at any time. Some
disasters give warning like a storm preceding a
flood. Others, like earthquakes give no
warning. Once a disaster happens, the time to
prepare is gone and all you can do is cope. Take
the next few minutes to examine what you can do
to prepare. Anything you do today to will be
like making a deposit in your survivability
savings account for withdrawal in tough times.
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31Materials you need
- A First-aid kit
- Bottled water
- Canned goods
- Shutters
- Flash lights
- Batteries
- Battery powered radio
32Hurricane Andrew
- Hurricane Andrew was a small but powerful storm
that caused massive destruction along a path
through southern Florida and south-central
Louisiana in late August 1992 (fig. 57). Rainfall
associated with Andrew was light for a hurricane
because of the small size and rapid forward
movement of the storm. However, rainfall totals
of more than 7 inches were recorded for the storm
period in southeastern Florida and Louisiana a
high of 11.9 inches was recorded in Hammond, La.
(Rappaport, 1992). Maximum sustained windspeeds
of 141 mph (miles per hour), with gusts of 169
mph, were recorded on August 24, just before
landfall in Florida (Rappaport, 1992). A storm
surge of about 17 feet above sea level was
recorded at Biscayne Bay, Fla. (fig. 58) and
about 9 feet near Terrebonne Bay in south-central
Louisiana (fig. 59).
33The Damage Hurricane Andrew Caused
- More than 250,000 people were left homeless
82,000 businesses were destroyed or damaged
about 100,000 residents of south Dade County
permanently left the area in Andrew's wake.
Andrew also had a severe impact on the
environment -- it damaged 33 percent of the coral
reefs at Biscayne National Park, and 90 percent
of South Dade's native pinelands, mangroves and
tropical hardwood hammocks. It also created 30
years worth of debris.
34Hurricane damage
- Only three category-5 storms have hit the United
States since record-keeping beganthe 1935 Labor
Day hurricane, which devastated the Florida Keys,
killing 600 Hurricane Camille in 1969, which
ravaged the Mississippi coast, killing 256 and
Andrew in 1992, which leveled much of Homestead,
Fla. Hurricane Katrina in 2005 was a category-5
storm at peak intensity over the central
Caribbean, Mitch in 1998 was a category-5 storm
at its peak over the W Caribbean, and Gilbert in
1988 was a category-5 storm at its peak. Gilbert
was the strongest Atlantic tropical cyclone of
record until Wilma in 2005, which was at its peak
while category-5 storm over the W Caribbean. The
1970 Bay of Bengal tropical cyclone killed about
300,000 persons, mainly by drowning. The
deadliest U.S. hurricane was the 1900 Galveston
storm, which killed 8,00012,000 people and
destroyed the city.
35Tornado Damage
- FEMA has found that enhancing construction
minimizes property damage to homes in areas prone
to hurricane force winds, and those same
techniques can be just as effective in guarding
against damage from moderate to severe tornadoes.
Also, proper construction techniques and
materials based into existing construction to
reduce the damage on the most current model
building codes can be used in both new
construction and from low to moderate intensity
tornadoes
36The Lives A Hurricane Takes
- Forecasters said Dennis was following a
northwesterly track through the Gulf of Mexico
where 116 oil platforms and rigs have been
evacuated. It is expected to make landfall
somewhere between western Florida and Louisiana
late Sunday.Before Dennis' arrival, Cuban
authorities had rushed more than 700,000 people
into shelters overnight, including at least 2,500
foreign tourists
37How Lightning Forms
- Lightning is an electric current. Within a
thundercloud way up in the sky, many small bits
of ice (frozen raindrops) bump into each other as
they move around in the air. All of those
collisions create an electric charge. After a
while, the whole cloud fills up with electrical
charges. The positive charges or protons form at
the top of the cloud and the negative charges or
electrons form at the bottom of the cloud. Since
opposites attract, that causes a positive charge
to build up on the ground beneath the cloud. The
grounds electrical charge concentrates around
anything that sticks up, such as mountains,
people, or single trees. The charge coming up
from these points eventually connects with a
charge reaching down from the clouds and - zap -
lightning strikes!
38The Damage Lightning Causes
- The odds of being struck by lightning are
approximately one in 600,000. The odds of
winning the lottery are about one in five
million. However, lightning causes as many as
100 deaths and 300 injuries in the United States
each year. A problem with the statistics on
lightning is that the numbers we receive are only
those seriously injured or killed by lightning.
Seventy-five percent of those struck by lightning
survive. They may suffer from heart damage,
inflated lungs, brain damage, loss of
consciousness, amnesia, paralysis, and burns.
Not all cases of lightning strikes are
disastrous, either. Some blind and deaf
individuals struck by lightning have reported
their senses being restored after their
encounters. By following all safety precautions,
one can reduce the probability of being struck by
lightning and the number of lightning casualties
can be reduced. One must take the responsibility
for his or her safety and take appropriate action
when threatened by lightning.
39Destroyed Houses From Lightning Storms
- Fire officials believe a lightning strike around
1030 p.m. Wednesday, June 4, sparked a fire that
completely gutted a Payne Road home. The house
was unoccupied at the time. - Block Island volunteer firefighters battled the
fire for over three hours at the cedar-shingled
summer home of John Cassidy, amid heavy rain,
crackling thunder and a lightning storm.
40Hurricane Katrina Survivors
- The American Red Cross is where people mobilize
to help their neighborsacross the street, across
the country and across the worldin emergencies.
The American Red Cross, a humanitarian
organization led by volunteers, guided by its
Congressional Charter and the Fundamental
Principles of the International Red Cross
Movement, provides relief to victims of disasters
and help people prevent, prepare for, and respond
to emergencies. You can help ensure that the Red
Cross can continue to provide these lifesaving
services and has the resources, talent and
ability to continue to deliver them by making a
donation to support all of its cores services
today.
41How tornadoes damage
- Mobile homes demolished trees uprooted strong
built homes unroofed F3158-206 mph Severe damage
Trains overturned cars lifted off the ground
strong built homes have outside walls blown
awayF4207-260 mph Devastating damage Houses
leveled leaving piles of debris cars thrown 300
yards or more in the air F5261-318 mph Incredible
damage Strongly built homes completely blown
away automobile-sized missiles generated
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43Tornadoes taking lives
- EVANSVILLE, Ind. -- Dan McDonald, a firefighter,
raised his ax and plunged it into the carcass of
a mobile home, looking for life but
half-expecting to find more death. It was a dozen
hours after a rare November tornado hop scotched
across southwestern Indiana, snapping trees,
obliterating trailers and killing 23 people.
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46About Lightning
- The early Greeks thought that the king of the
gods ,Zeus , hurled thunderbolts from stormy
skies .Lightning can go speeds up to 60,000 miles
per second 6,000 times as fast as a spaces About
Lightning hip. Also a flash of lightning is
brighter than 10,000,100 watt light bulbs. About
100 lightning bolts hit the Empire State Building
each year and every second of the day 100 more
lightning bolts hit the earth . Lightning can
also be different colors like purple, red, green,
pink, blue, but the most popular color is white. -
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48Different Types Of Lightning
- Heat lightning comes when it is hot outside.
Sheet lightning looks like flat waves. Ribbon
lightning looks like streamers floating in the
sky the sky. Silent lightning is so far away that
you can hear it. Finally, ball lightning seems to
be a bright round spark that float in the air.
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50A New Kind Of Lightning
- In 1995,scientists discovered a new kind of
lightning and named it elves. Elves is a short
bright flash of lightning which blaze forth high
above the cloud at the edge of space. Elves last
for less than a thousandth of a second. Know one
is absolutely sure what they look like but in
therein they are green.
51Thanks for watching our slide show
- We really worked hard on this project and the
best part is that we had FUN!!!!!
52We would like to thankMr. Coto
- Mr.Coto chose us to do this awesome project (even
though we had to miss class). We had so much fun
working on the project. We would like to thank
Mr. Coto for giving us this opportunity.
Thanks Mr. Coto!