| 5.
Hurricane Formation |
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| • | Need
upper-level winds to diverge and |
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| leave
more quickly than surface air is |
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| converging
(upper level air support). |
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| • | Trade wind inversion near 20o is caused by |
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| sinking
due to subtropical high (prevents). |
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| • | Hurricanes
do not form when upper level |
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| winds
are strong and can disrupt the |
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| organization
of the storm (occurs over |
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| Atlantic
more frequently in El Nino event). |
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