Hurricanes

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Hurricanes

  1. 1. Cristina Neme 2ºBachillerato D
  2. 2. Outline <ul><li>What is a Hurricane? </li></ul><ul><li>How and where are they formed? </li></ul><ul><li>Hurricane’s structure </li></ul><ul><li>How are they measured? </li></ul><ul><li>How and why they are called so? </li></ul><ul><li>Worst Hurricanes of all time </li></ul><ul><li>Summary </li></ul><ul><li>Questions </li></ul>
  3. 3. What is a Hurricane? <ul><li>Intense wind </li></ul><ul><li>119 km/h (74 mph) </li></ul>
  4. 4. How and where are hurricanes formed? <ul><li>Tropical Storms </li></ul><ul><li>Oceans near the Equator </li></ul><ul><li>Wind begins to circle </li></ul><ul><li>Speeds of 119 and 240 km/h </li></ul><ul><li>Loses its power </li></ul>
  5. 5. Hurricane’s Structure
  6. 6. How are they measured? <ul><li>Saffir-Simpson Hurricane Scale </li></ul><ul><li>Classifies Hurricanes </li></ul><ul><li>Maximum sustained winds </li></ul><ul><li>Indicates damages and flooding </li></ul><ul><li>This classification is too simple </li></ul>
  7. 7. How are they measured? <ul><li>There’s 5 categories </li></ul>
  8. 8. How and Why they are called so? <ul><li>Meteorologists started calling hurricanes </li></ul><ul><li>Easier communication between them and public </li></ul><ul><li>Clement Wrage </li></ul><ul><li>1978, male names were included </li></ul><ul><li>Names can be replaced and registered </li></ul>
  9. 9. Worst Hurricanes of all time <ul><li>Katrina (2005) </li></ul><ul><li>Andrew (1992) </li></ul><ul><li>Mitch (1998) </li></ul><ul><li>Wilma (2005) </li></ul><ul><li>Hugo (1989) </li></ul>
  10. 10. Katrina (2005) <ul><ul><li>Category 5 </li></ul></ul><ul><ul><li>29.08.2005 </li></ul></ul><ul><ul><li>Lousiana, Mississippi, Alabama </li></ul></ul><ul><ul><li>Winds of 240 km/h </li></ul></ul><ul><ul><li>Half million of inhabitants were affected </li></ul></ul>
  11. 11. Katrina (2005)
  12. 12. Katrina (2005) http://www.youtube.com/watch?v=s76Qn7bpCsQ
  13. 13. Andrew (1992) <ul><li>Category5 </li></ul><ul><li>16-28.08.1992 </li></ul><ul><li>Bahamas, Miami, Lousiana Florida </li></ul><ul><li>Winds between 232 and 264 km/h </li></ul><ul><li>30 kms of disaster </li></ul>
  14. 14. Andrew (1992)
  15. 15. Mitch (1998) <ul><li>Category 5 </li></ul><ul><li>22.10.1998 </li></ul><ul><li>Atlantic ocean </li></ul><ul><li>Central America </li></ul><ul><li>Winds of 290 km/h </li></ul><ul><li>It killed 18.000 people </li></ul>
  16. 16. Mitch (1998)
  17. 17. Wilma (2005) <ul><li>Category 5 </li></ul><ul><li>October </li></ul><ul><li>Yucatán, Cuba, Florida </li></ul><ul><li>Not so much damages </li></ul><ul><li>Winds of 250 km/h </li></ul>
  18. 18. Wilma (2005)
  19. 19. Hugo (1989) <ul><li>Category 5 </li></ul><ul><li>Costa Rica, Saint Croix, Carolina del Sur </li></ul><ul><li>It did not kill so much people </li></ul>
  20. 20. Hugo (1989)
  21. 21. Summary <ul><li>A hurricane is an intense wind (119 km/h) </li></ul><ul><li>It begins as a Tropical Storm </li></ul><ul><li>Eye of the hurricane is a peaceful area </li></ul><ul><li>Hurricanes are measured by the Saffir-Simpson Scale </li></ul><ul><li>Hurricanes are called with people’s names </li></ul><ul><li>Katrina Hurricane had been the most destructive </li></ul>
  22. 23. Questions <ul><li>1.The Saffir-Simpson scale is… </li></ul><ul><li>a) Quite complicated </li></ul><ul><li>b) Too Simple </li></ul><ul><li>d) That scale doesn’t exist </li></ul><ul><li>2.The most destructive hurricane was… </li></ul><ul><li>a)Wilma </li></ul><ul><li>b)Mitch </li></ul><ul><li>c) Katrina </li></ul><ul><li>3.To consider a storm as a hurricane its winds should be… </li></ul><ul><li>Faster than 89 km/h </li></ul><ul><li>119 km/h </li></ul><ul><li>240 km/h </li></ul>
  23. 24. Questions <ul><li>4. Winds in category 5 are… </li></ul><ul><li>a) > 200 km/h </li></ul><ul><li>b) > 250 km/h </li></ul><ul><li>d) < 200 km/h </li></ul><ul><li>5. The eye of the hurricane is… </li></ul><ul><li>A peaceful are </li></ul><ul><li>The center of the hurricane </li></ul><ul><li>Both are true </li></ul><ul><li>6. The highest category on the saffir simpson scale is… </li></ul><ul><li>a)10 </li></ul><ul><li>b)5 </li></ul><ul><li>c)20 </li></ul>

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