Hurricanes

1. Brendan Mazanec Jordan Waller Nicholas Sexton Mitchell McConnell John Kuchinski Bailey Vaughan Hurricanes

2. Scales of Wind

3. Watches vs. Warning • ______________ • Development Possible • ______________ • Immediate Threat

4. Hurricane Attributes Causes of a Hurricane • Warm wet ______________ (intense low pressure) over the sea begins to ____ water and becomes stronger. • Hurricanes always have circulation ____________ in the Northern Hemisphere. • If the water is at __ degrees or above. • Combined actions of air, water, and heat produce a huge spinning system of bans of rain and high wind.

5. Hurricane Conditions

6. Conditions Necessary • First, the ocean waters must be warm enough at the _________ to put enough ______ and _______ into the atmosphere

7. Conditions Cont. • Second, ________ from the evaporated sea water must combine with the heat and ______ to form a source of fuel for the hurricane

8. Conditions Cont. • Third, a wind pattern must be near the _____________ • This will allow the air to spiral ________ • This process causes bands of ____________ to form, warming the air even further and causing it to rise higher in to the atmosphere • If winds at these higher levels are relatively light, the storm structure will remain intact, forming the basis for a hurricane

10. Source of a Hurricanes Energy

11. Source of Energy • The energy that fuels a hurricane comes from the evaporated _______________

12. Rotation of Hurricanes

13. Angular momentum • Angular momentum comes from ____ of the storm

14. Rotation • The hurricanes ______ is caused by the coriolis effect • Starts West then works ____ then rotates ____ as it moves North in Northern hemisphere

15. Stages • Will start as a _____________________ • This is a ___ pressure zone • Can progress into a ___________, this can take half a day to a few days • The pressure continuously falls to cause this • Heavier precipitation, as well as stronger winds

16. Cont. • Tropical storms can then progress into a ___________ in relatively the same time frame • These are _______ than tropical storms • Much lower pressure, the lowest pressure system in the world • Hurricanes can last as long as __-__ weeks

18. Tracking Hurricanes

19. Tracking Hurricanes (Doppler Radar) • Doppler ______ can detect rain associated with tropical cyclones • It typically covers rain within a ___ to ___ mile distance from the location of the radar station • Doppler radar can also provide estimates of ________ amounts and help depicts a hurricane's rain bands, eye and eye wall.

20. Tracking Hurricanes (Satellites) • _________ allow meteorologists to look over several images of a forming tropical storm • From here they can determine the symmetry of _____ patterns, and the character of the hurricane’s eye.

21. Tracking Hurricanes (Reconnaissance Aircraft) • During _____________, the Army Air Corps and Navy pilots began making reconnaissance flights into the eye of hurricanes • The pilots gathered information on a hurricane's location and intensity • Today, reconnaissance aircraft are still actively used to gather tropical cyclone information • The information is then passed on to the National Hurricane Center (NHC) in Miami, Florida, and to _______________________________________.

22. The Hurricane MKIID

23. Why Do Hurricanes Follow A Certain Path

24. Hurricanes that affect the US start out near the ________________ in Africa ____________ push hurricanes to the US The eastward blowing ___________causes hurricanes to approach the east coast Areas in the US have their own fronts and pressure zones which influence the hurricane Why Do Hurricanes Follow A Certain Path?

25. How do Hurricanes Die?

26. How Hurricanes Die • When hurricanes travel over ____ or ____ water, its energy source (warm water and moisture) is gone and the storm is weakened, causing it to lose its energy and die.

27. Hurricane Safety

28. Learn hurricane evacuation routes and follow authorities’ directions Secure your home and cover all windows Listen to ________ or radio for information Ensure a safe, plentiful supply of food and _____ Take refuge in a small interior room on the lowest level Return out of cover only when officials say it is safe Hurricane Safety

29. Hurricane Damage

30. Types of Hurricane Damage • __________-An abnormal rise of water generated by a storm. Caused primarily by strong winds of a hurricane. When the circulation of water reaches the continental shelf the water rises causing flooding and destruction of the coast. • __________-Very strong winds can blow down trees and remove roofs as well as create flying debris • __________- Flooding of major rivers and lakes add to the storm surge flooding as well as the torrential downpour from the Hurricane itself.

31. Hurricanes in the Rest of the World

32. Western Pacific-_________ Indian Ocean- __________ What hurricanes are called in other parts of the world

33. Economic Impact of Katrina

34. Effects of a Hurricane • Storm surges, flooding, tornadoes, strong rip tides and ____________. • Slows the ___________ of an area. • Changes ecosystems.

35. Economic effects of Hurricanes.(________) • Thousands were left unemployed • Most costly hurricane in American history. • ______ destroyed oil rigs and slowed oil production causing gas prices to spike across the United States. • In 2004, __% of U.S. wheat exports, __% of corn exports, and __% of soybean exports passed through Gulf ports. Shipping did not occur until later in the fall, when ports would again be operational. • Also insurance companies paid a total ___ billion dollars in insurance claims, the most in United States history.