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HURRICANES The History, Structure, Development, and Destruction Source:

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HURRICANES Source:

When is Hurricane Season? June 1 st through November 31st

What is a hurricane? Violent cyclonic storm that develops in the tropical region Wind speeds are > 74 mph Source: Newsroom/NewImages/images.php3?img_id=680

What is the difference between a hurricane, cyclone, and a typhoon? Scientific term: tropical cyclone LOCATION, LOCATION, LOCATION!!!!!

How does a hurricane form? Only form over warm ocean waters Warm, moist air rises Creates low pressure at the surface “New” air moves in…warm air rises Higher air cools off…condenses…forms clouds System of clouds spin Video

Anatomy of a Hurricane

What is the major source of energy fueling a hurricane? Heat Energy evaporating from the ocean surface

What conditions must be present for a hurricane to develop? Warm ocean temperatures (>80˚ F) up to 60m deep Little no wind shear Low pressure system at least 5˚ North or South of Equator Source: gov/oa/reports/fran/fran.html

Rotation and Pressure In which direction does a hurricane rotate? COUNTERCLOCKWISE Is the barometric pressure inside the hurricane high or low? LOW

What is the role of the National Weather Service during hurricane season? Provides weather information, such as data from satellites Responsible for issuing watches and warnings to the media and general public

Watch vs. Warning What is the difference between a Hurricane Watch and a Hurricane Warning? Watch – Tropical storm poses a threat to coastal areas with 36 hours Warning - Tropical storm conditions are expected in a coastal area within 24 hours

What is the Scale Used to Categorize Hurricanes?

What causes the damage in a hurricane? Winds Flooding Storm Surge

What destroys a hurricane? Cold water Movement over land

How has a hurricane affected you personally? Damage to your house from wind? Damage from flooding? Destroyed vacation house? Damage to family members’ homes?

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