Hurricane+Katrina+(2005)



Hurricane Katrina power point By: John Pelech

Hurricane Katrina was the fifth most powerful hurricane on record in the United States. The sustained wind speed of hurricane winds were 175 mph (once it hit the gulf coast). Hurricane Katrina was considered a category three hurricane. The damage that occurred was terrible. The path of hurricane began in the Dominican Republic as a category 1 and increased in power and eventually reached the coast of Florida .Hurricane Katrina struck Florida at 11pm it had winds with the sustained power of 75 mph. By 7pm Hurricane Katrina was over Miam beach and had winds of 80 mph. Once hurricane passed over Florida it was greatly weakened. But once the hurricane reaches the gulf Mexico it gained and intensity and became a category 3 with winds of 144 mph sustained winds. The further north hurricane Katrina went north on land and it quickly disapatched. The damage that was done after the cyclone stopped spinning. =How Did it happen? =

 Hurricanes in general begin only in tropical regions because they have to have water that is over 80 in temperature to develop in to a hurricane. Hurricanes begin as tropical disturbance. the official NOAA definition is

"A discrete tropical weather system of apparently organized convection - generally 200 to 600 km (100 to 300 nmi) in diameter - originating in the tropics or subtropics, having a nonfrontal migratory character, and maintaining its identity for 24 hours or more. It may or may not be associated with a detectable perturbation of the wind field. Disturbances associated with perturbations in the wind field and progressing through the tropics from east to west are also known as easterly waves (NOAA.gov)"

 If a tropical disturbance stays around it will cause latent heating. So the surrounding area will be lower pressure and warmer. As new air comes in contact with the system in the right conditions more moisture in that air will condense and create more latent heat. This process continues and the tropical disturbance expands until it is large enough to be affected by the Coriolis effect. When this happens It becomes a tropical storm. after a pre-hurricane develops a spin it no longer is defined by its structure it is defined by sustained wind speed.


 * Tropical Storm || 39-73 mph ||
 * Category 1 || 74-95 mph ||
 * Category 2 || 96-110 mph ||
 * Category 3 || <span style="font-family: 'Times New Roman',Times,serif; font-size: 130%;">111-129 mph ||
 * <span style="font-family: 'Times New Roman',Times,serif; font-size: 130%;">Category 4 || <span style="font-family: 'Times New Roman',Times,serif; font-size: 130%;">130-156 mph ||

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Damage By Hurricane Katrina
The damage by hurricane was immense. the wide spread destruction across the Southerner United States Killing around 2,000 people



Most of the damage was concentrated to the gulf coast. It is thought that hurricane Katrina cause 105 billion dollars in damage. This damage is mainly concentrated in Louisiana. Even more specifically Hurricane Katrina destroyed the city of New Orleans. New Orleans was a city that was put underwater by the storm. New Orleans was under sea level and close to the ocean. to prevent flood from happening constantly the city decided to put up levees as protection. They were not rate for hurricane that level wind. In addition to levees being destroyed. In addition the storm surge was 28 feet high Hurricane killed mainly killed people who where closer to the coast of the gulf coast from storm surges.

Some economists believe that if you account for loss of potential gains it is over 250 billion dollars. Gas production was stopped property damage. Aid for victims. It destroyed the sugercane crop.tourism to the south was stiffled.

media type="youtube" key="-Kou0HBpX4A" width="420" height="315" align="center" Beacuse of hurricane Katrina's deadly power policy maker have been moving forward to reform FEMA. To increase the strength of flood and wind precocious devices.

=Chaos=

After the hurricane had passed in New Orleans there was wide spread chaos. Food was not available from official source so people broke into stores in order to eat. Eventually the looting became a problem people were looting house for non-essential items. Because, of this chaos federal troops were called in. order was restored to New Orleans a few weeks after the hurricane had past

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