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HURRICANES

HURRICANES. Ingredients for a hurricane to form:. 1. Water temperature 80 ° or more. 2. Surface level low pressure 3. Upper level high pressure. L. H. So what would cause a hurricane to weaken?. If the hurricane moves into colder water. If the hurricane moves over land. Development.

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HURRICANES

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  1. HURRICANES

  2. Ingredients for a hurricane to form: • 1. Water temperature 80°ormore. • 2. Surface level low pressure • 3. Upper level high pressure. L H

  3. So what would cause a hurricane to weaken? • If the hurricane moves into colder water. • If the hurricane moves over land.

  4. Development 1. Tropical Wave: a large, unorganized area of rain. No symbol. 2. Tropical Depression: a storm spinning counterclockwise with winds <39 mph. • Symbol is: L

  5. Development • Tropical Storm: a storm spinning counter clockwise with winds between 39 and 73 mph. • Symbol:

  6. Development • Hurricane: a storm spinning counter clockwise with winds >74 mph. • Symbol:

  7. Parts of a hurricane

  8. Parts of a hurricane • Eye – the calm, low pressure center of a hurricane. 5-30 miles wide. • Eye wall – the dense wall of thunderstorms surrounding the eye. • The strongest and most intense part of a hurricane.

  9. Parts of a hurricane • Rain bands – the spiral bands of clouds surrounding the eye wall. • The largest part of a hurricane

  10. Storm Surge • Storm surge – large surge of water near the coast. • This causes the most damage!

  11. Saffir Simpson Scale • The scale to measure hurricanes is call the Saffir Simpson Scale. • Category 1 is the weakest. • Category 5 is the strongest: winds > 157 mph. • Hurricane season is from June to October. • See the attached scale.

  12. Saffir-Simpson Scale Wind Speeds

  13. Saffir Simpson Scale

  14. Alberto Beryl Chris Debby Ernesto Florence Gordon Helene Isaac Joyce Kirk Leslie Michael Nadine Oscar Patty Rafael SandyTony Valerie William 2012 Hurricane Names

  15. Hurricane Katrina – 2005Category 5(hit U.S. as a category 4)

  16. Only 3Category 5 hurricanes have ever hit the United States. • 1935 Florida Keys Labor Day Hurricane • 1969 Hurricane Camille • 1992 Hurricane Andrew

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