2. Tuesday 12/9 Starter Hurricanes: What are they? What can you tell me about them? (ex: how are they named, how are they formed…)

3. Starter 12/10 Explain what must occur for a severe thunderstorm to turn into a hurricane.

4. Storms and Hurricanes Storms and Hurricanes

5. 10/5/20154 HURRICANES Hurricanes are formed from simple complexes of thunderstorms. The ocean water must be warmer than 26.5 degrees Celsius (81°F). The ocean water must be warmer than 26.5 degrees Celsius (81°F). (Heat + moisture) from the warm water = energy source for hurricane Hurricanes will weaken rapidly when they travel over land or colder ocean waters  locations with insufficient heat and/or moisture. The name "hurricane" is given to systems that develop over the Atlantic or the eastern Pacific Oceans.

6. 10/5/20155 Storm Developmental Stages 1. Severe Thunderstorm Lightning, high winds, and hail 2. Tropical Disturbance Tropical waves & unorganized storms 3. Tropical Depression Winds below 40 mph 4. Tropical Storm Winds 39-73 mph.Gets a name at this point ex: Tropical Storm Gabrielle (most recent) 5. Hurricane Sustained winds over 74 mph

7. 10/5/20156 HURRICANE DEVELOPMENT At the equator, ocean surface temperatures are warm enough to produce hurricanes, but none form. Coriolis force, north and south of the equator, is needed to create spin and induce a potential hurricane.

8. TYPICAL HURRICANE SEASON Consists of: 14 Named Storms 8 Hurricanes 8 Hurricanes 3 Severe Hurricanes (Category 3, 4 Or 5) Approximately 340 Warnings

9. Hurricanes are cyclones that develop between latitudes 5 to 30 degrees N or S over the warm tropical oceans (81degrees F) and have sustained winds in excess of 64 knots (74 miles/hour). They can create torrential rain, flooding, and loss of property and life.

10. 10/5/20159 Saffir-Simpson Scale- hurricane wind scale based on intensities of sustained winds StageWind mphTide Damage Category 1 74-954-5Minimal Category 296-1106-8Moderate Category 3111-1309-12Extensive Category 4131-15513-18Extreme Category 5156+++18+++Disaster

11. 10/5/201510 Hurricane Storm Surge Hurricane Camille 1969

12. STORM SURGE Storm surge is a great dome of water created by the energy of the churning hurricane. It may extend up to 50 miles in width. *Storm surge causes 9 out of 10 storm related deaths*

13. 10/5/201512 Storm Surge Storm Surge can be up to 33 feet tall. If it occurs at high tide the total effect can be a tide of over 50 feet.

14. 10/5/201513 STORM SURGE Hurricane Georges, Biloxi, MS 1998

15. 10/5/201514 Hurricane Mitch 1998

16. 1 DIVERTS 12 SORTIES 70 SORTIES 16 DIVERTS 7 SORTIES 4 DIVERTS 10 DIVERTS 15 DIVERTS 3 SORTIES

17. Typical Hurricane Season Runs from June 1 st to November 30 th for Atlantic and Pacific Ocean HurricanesRuns from June 1 st to November 30 th for Atlantic and Pacific Ocean Hurricanes Not the typical calendar yearNot the typical calendar year 10/5/201516

18. HURRICANE NAMES HURRICANE NAMES

19. Hurricane Names - 2014 10/5/201518 Names are put in rotation to be used again every six years. However, powerful hurricanes have their names “retired” from use again.

20. 10/5/201519

21. 10/5/201520 In this satellite image from 1995, we can see different tropical disturbances in each stage of development.

22. 10/5/201521 The most recognizable feature found within a hurricane is the Hurricane Eye. The eye is the focus of the hurricane, the point about which the rest of the storm rotates and where the lowest surface pressures are found.

23. 10/5/201522

24. 10/5/201523

25. 10/5/201524 Standard Warning l Current Position l 12, 24, 36, 48 & 72 hr fcst position l 35 kt wind radius l 50 kt wind radius l 100 kt wind radius l Error radius

26. 10/5/201525 Hurricane Isadore 2002

27. 10/5/201526 Structural Damage due to wind...

28. 10/5/201527 THE POWER OF HURRICANES! The old “board through the tree” story proven true!!

29.  - Listen to TV and radio for information  - Fuel and service vehicles  - Inspect and secure mobile home tie downs  - Complete preparation activities such as putting up storm shutters and storing loose objects  - Check batteries and buy canned food, first aid supplies, bottled water, and keep extra cash on hand  - Leave Immediately If Told To Do So!  - If evacuating, leave early, in daylight if possible HURRICANE SAFETY

30. The End

31. Exit: How are hurricanes named? What happens to the name of a severe hurricane? How are hurricanes named? What happens to the name of a severe hurricane? 10/5/201530

32. A Severe Search for Hurricanes! Homework Assignment Due Thursday 12/18 Can use notes or research if need be!