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Brice - Hurricane Presentation

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  • 1. Hurricanes Brice Lockard
  • 2. What is a Hurricane?
    • A hurricane is a collection of water vapor/winds spinning around a low pressure zone. You may have heard of tornadoes, cyclones, typhoons and monsoons, but do not confuse them as being the same thing as a hurricane. Cyclones are storms in the Indian ocean and the south west pacific. If they are not from that region they cannot be named a cyclone. Tornadoes are smaller than hurricanes and are started over land. Whereas the hurricane is started over the Atlantic sea.
  • 3. How does heat have to do with the pressure of a hurricane?
    • Warm air, being less dense, weighs less meaning the atmospheric pressure in the center of the storm drops. Into this low pressure region the air starts to swirl in a counter clockwise direction. In other words low pressure is the fuse to a hurricane.
  • 4. Why is there rain in a hurricane?
    • As I said in the last slide, winds swirl around the low pressure spot soon to become the eye of the hurricane. These winds drag up enormous waves. The vapors from the warm waves rises up in the updrafts through giant thunder clouds called hot towers. As the air in the hot towers cools the vapor condenses into rain. The hot towers do the work in a hurricane heat engine.
    Hot Towers
  • 5. Why do hurricanes form over water in the summer?
    • During the hot summer sun, the Atlantic ocean warms up, causing the water to evaporate. In order for a hurricane to start, it needs waters exceeding 80ºF. Warm ocean water provides energy for the hurricane and causes more evaporation making humid air and clouds.
  • 6. What does a hurricane need to develop and grow?
  • 7. Why does a hurricane weaken over land?
    • Water vapor is the fuel of the engine, as gas is the fuel of a car. Without gas the car will not move. It is the same concept when talking about a hurricane. Without vapor the hurricane will weaken until there is no more hurricane left. This is why there are no hurricanes in the middle of the United States of America.
  • 8. Sites
    • http://answers.yahoo.com/question/index?qid=20080910011330AA3DGts
    • http://www.weatherwizkids.com/hurricane1. htm
    • http://www.youtube.com/watch?v=_6Gfaw3s1Lk
    • http://www.fema.gov/kids/hurr. htm
    • http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/hurr/home. rxml
    • http://en.wikipedia.org/wiki/Tropical_cyclone
    • http://www.miamisci.org/hurricane/