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Ashlee Hill Tuesday Nov 18, 2003 SCI 210.06 A tropical cyclonic storm having winds in excess of 199 kilometers (74 miles/hour) • Hurricanes occur over all tropical oceans except those of the South Atlantic and eastern South Pacific. • Here in the United States, hurricanes occur along the coastal lines in the east and near the Gulf • At the center of a hurricane lives the eye. • The eye holds the warmest air of the storm due to descending and heating by compression • Some people believe the eye is characterized by blue skies – Note: this isn’t always the case because the subsidence in the eye isn’t strong enough to produce cloudless conditions •…in the last summer months when the ocean water temperatures reach 80 degrees Fahrenheit or higher •…develop over tropical ocean waters •…are fueled by the latent heat liberated when huge quantities of water vapor condense •…they move over the ocean water that can’t supply warm, moist tropical air OR •…move onto land OR •…reach location where the large-scale flow aloft is unfavorable • Used to rank the relative intensities of hurricanes • Measures the disaster potential of a hurricane • Storm Surge causes death • Wind damage causes damages to man-made things • Inland flooding
