| Summary |
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| • | Hurricanes
are tropical cyclones composed of |
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| organized
thunderstorms with winds about the |
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| eye
exceeding 64 knots (74 mph). |
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| • | They
derive their energy from warm tropical |
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| water
and latent heat of condensation. |
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| • | They
form in a region of surface convergence |
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| and
upper level divergence. |
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