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What is a cyclone n why are hurricanes considered cyclones?
an area or center of low atm pressure characterize by rotating winds.
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Cyclone rotate counterclockwise in the northern hemisphere
due to the Coriolis effect. They blow clockwise in the southern hemisphere
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Classification of hurricanes [table 9.1]
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How do tropical cyclones form?
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Tropical cyclones vs extratropical cyclones
- classified based on their place of origin and the temp of their center or core region.
- Tropical form over warm tropical or sub tropical ocean water, b/w 5-20 latitude. Unlike extratropical they are not associated w fronts and have warm cores
- Extratropical means outside of the tropics, they develop over land or water in temperate regions, b/w 30-70Latitute.
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Cyclone vs typoon vs hurricane [fig 9.24]
- cyclone: general term applied to a loarge low p system w winds circulating inward towards it's center
- Typoon: chinese for scary wind, occur north of the equator
- Hurricanes: form in the atlantic and eastern pacific, caribean native word for an evil god of winds and destruction
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Geographic areas that are at risk for hurricanes in the USA [fig 9.22]
- all along the southern coast starting at the base of TX and ending in the northeast new england coasts.
- Storngest in panhandle
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Typical hurricane tracks in the USA
Starts in the Atlantic ocean to the east, moving towards FL, the Caribbean island and bermuda
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Major causes of damage from hurricanes
Heavy Rain, High Winds, Storm Surge
Storm Surges by far the greatest damages
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