Hurricane Facts (Updated May 2011)

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This is a presentation about hurricanes and what to do to prepare for them. This version contains the latest information.

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Hurricane Facts (Updated May 2011)

  1. 1. Hurricanes <ul><li>Dominique Turner </li></ul>
  2. 2. Table of Contents <ul><li>What is a Hurricane and how do they form? </li></ul><ul><li>The Saffir-Simpson Scale </li></ul><ul><li>Where do hurricanes form? </li></ul><ul><li>How are hurricanes named? </li></ul><ul><li>Parts of a hurricane </li></ul><ul><li>Hurricane watch vs. Hurricane warning </li></ul><ul><li>Hurricane Preparation </li></ul><ul><li>Good Advice </li></ul>
  3. 3. What is a Hurricane and How Do They Form? <ul><li>Large tropical storms with winds greater than 74 MPH. </li></ul><ul><li>Rotate clockwise in the southern hemisphere. </li></ul><ul><li>Counter-Clockwise in the northern. </li></ul><ul><li>They form where water is above 79 degrees. </li></ul><ul><li>Hurricanes contain torrential rain and storm surge into the land. </li></ul><ul><li>Warm water gives it its strength. </li></ul><ul><li>Land weakens the hurricane. </li></ul>
  4. 4. Saffir-Simpson Scale <ul><li>Measures how intense a hurricane is. </li></ul><ul><li>Contains five categories. </li></ul><ul><li>Category 1 does minor damage. </li></ul><ul><li>Category 5 does major damage. </li></ul>
  5. 5. Saffir-Simpson Scale <ul><li>Lower the pressure, the stronger it is. </li></ul>Pressure is 980 millibars (MB). Light Damage Pressure is 965-979 MB. Moderate Damage Pressure is 945-964 MB. Extensive Damage Pressure is 920-944 MB. Extreme Damage Pressure is <920 MB. Catastrophic Damage
  6. 6. Where Do Hurricanes Form? <ul><li>All hurricanes form near the equator. </li></ul><ul><li>Atlantic, Pacific, and the Indian Ocean. </li></ul><ul><li>They are not always called hurricanes. </li></ul><ul><li>Atlantic and Eastern Pacific-Hurricanes </li></ul><ul><li>Western Pacific-Typhoons </li></ul><ul><li>Indian Ocean-Cyclones </li></ul>
  7. 7. Map Hurricanes Cyclones Typhoons Hurricanes
  8. 8. How Are Hurricanes Named? <ul><li>Began in 1953. </li></ul><ul><li>There are 21 names on the list. </li></ul><ul><li>It’s numbered when it’s a T.D. (<39 MPH). </li></ul><ul><li>It’s a named when it’s a T.S. (39-73 MPH). </li></ul><ul><li>Hurricane winds are >73 MPH. </li></ul><ul><li>The Greek alphabet (Link) is used when names run out. </li></ul><ul><ul><li>Occured once in 2005. </li></ul></ul>
  9. 9. How Are Hurricanes Named <ul><li>On the list of names (Link) , male and female names alternate. </li></ul><ul><li>Male and female names were used starting in 1979. </li></ul><ul><li>The same name is used every six years. </li></ul><ul><li>When a storm does major damage, that name is never used again. </li></ul>
  10. 10. Parts of a Hurricane <ul><li>The eye is the calmest part. It’s usually 10 mi. wide. </li></ul><ul><li>The eye wall contains the strongest winds. </li></ul><ul><li>The outer bands can produce tornados. </li></ul><ul><li>There is a ton of rain when hurricanes hit land. </li></ul>Eye Eye Wall Outer Bands
  11. 11. Hurricane Watch vs. Hurricane Warning <ul><li>Hurricane Watch </li></ul><ul><ul><li>Hurricane conditions are possible within 48 hrs. </li></ul></ul><ul><ul><li>Take immediate action if a hurricane warning is issued. </li></ul></ul><ul><li>Hurricane Warning </li></ul><ul><ul><li>Hurricane conditions are expected within 36 hrs. </li></ul></ul><ul><ul><li>You must evacuate when asked. </li></ul></ul><ul><li>NOTICE THE MORE ADVANCED WARNING COMPARED TO PREVIOUS YEARS </li></ul><ul><li>The same goes for tropical storm watches and warnings </li></ul>
  12. 12. Hurricane Preparation <ul><li>Put shutters on your windows. </li></ul><ul><li>Keep monitoring the weather. </li></ul><ul><li>You Must Evacuate when asked </li></ul><ul><li>Go farther inland to a shelter or hotel. </li></ul><ul><li>If evacuating, leave early. </li></ul><ul><li>Take your pet or leave it with plenty of food and water. </li></ul><ul><li>Store loose objects in a storage place. </li></ul>
  13. 13. Hurricane Preparation <ul><li>If you are going to a shelter or hotel, you should bring: </li></ul><ul><li>A first-aid kit and medicine </li></ul><ul><li>Baby food, diapers, etc. </li></ul><ul><li>Entertainment. Ex. Cards, books, video/board games, etc. </li></ul><ul><li>You will get bored </li></ul><ul><li>Battery-powered radio </li></ul><ul><li>Flashlight and batteries </li></ul><ul><li>Extra batteries </li></ul><ul><li>Things to sleep on </li></ul><ul><li>Valuable papers </li></ul><ul><li>Cash </li></ul>
  14. 14. Good Advice <ul><li>YOU MUST EVACUATE WHEN ASKED TO. </li></ul><ul><li>IF YOU DON’T, THINGS COULD GET DANGEROUS , EVEN DEADLY . </li></ul><ul><li>HAVE A FAMILY DISASTER PLAN READY. </li></ul><ul><li>NEVER UNDERESTIMATE THE POWER OF A HURRICANE! </li></ul>
  15. 15. Bibliography <ul><li>http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/hurr/home.rxml </li></ul><ul><li>http://www.cotf.edu/ete/modules/sevweath/swwhatare.html </li></ul><ul><li>http://www.fema.gov/business/guide/section3d.shtm </li></ul><ul><li>Changes to the 2010 Hurricane Season </li></ul>

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