1. Bell Ringer
What is the difference between a funnel cloud and a tornado?
We will take our vocabulary quiz after notes
Funnel clouds do not touch the ground, tornados do

2. Hurricanes

3. Hurricanes
Cyclonic Storms – universal term for large, rotating, low-pressure storms
3 synonyms, depending on the storm’s location:
Typhoon – Western Pacific Ocean (Asia)
Cyclone – Indian Ocean
Hurricanes – Atlantic Ocean (eastern US)

4. Hurricanes Occur in warm, tropical oceans
Why doesn’t California get a lot of hurricanes?
Usually occur in the summer and early fall when oceans have stored lots of heat energy

6. Hurricane Formation
Source of energy comes from warm, tropical ocean water
As water evaporates from these oceans, latent heat is stored in the water vapor
The heat is released when the air rises and condenses into clouds

7. Hurricane Formation
The rising air creates a low pressure system, pulling in the surrounding air
The storm begins to spin due to the Coriolis Effect
The storm grows in size and spins more quickly

9. Hurricane Formation
Hurricanes are moved from one location to another wind systems

10. Stages of a Hurricane 4 stages of hurricane development:
Tropical Wave – weak low-pressure system
Tropical Depression – the system starts rotating around a center of low pressure
Tropical Storm – when the winds reach 40mph; storm receives a name
Hurricane – when the winds reach 75mph, creates an eye

11. Stages of a Hurricane Eye – calm center of the storm
Eyewall – a band around the eye where the winds are strongest and most violent

12. Classifying Hurricanes
The National Weather Service (NWS) tracks all stages of a hurricane
Hurricane watch – threat of storm conditions in the next hours
Hurricane warning – storm will strike within 24 hours

13. Classifying Hurricanes
Saffir-Simpson Hurricane Scale – classifies hurricanes according to wind speed, air pressure in center, and potential for property damage
Ranges from Category 1 (74mph winds) to Category 5 (155+ mph winds)
At Category 3, it is classified as a major hurricane

14. Wind speeds – how fast they’re spinning around
Actual speed across the ocean is usually < 20 mph
Why do you think we have tornado drills in school, but not hurricane drills?

15. Saffir-Simpson Simulator

16. Dangers of a Hurricane Example: Hurricane Matthew, October 2016
Inland flooding due to significant amounts of rain
Example: Hurricane Matthew, October 2016

17. Dangers of a Hurricane
Significant coastal damage

18. Dangers of a Hurricane
Winds – property damage and injuries from flying debris

19. Dangers of a Hurricane
Storm Surges – mounds of water pushed on land due to hurricane-powered winds
Can be as high as 20 feet above normal sea level

20. Dangers of a Hurricane
Causes approximately 90% of all hurricane-related deaths

21. Today
I will give you 2-3 minutes to look over your vocabulary, then we will start the quiz
After the quiz…

22. Vocab Quiz – please write letters clearly. Turn in when done.
Each person needs to work QUIETLY and INDEPENDENTLY on Naming Hurricanes WS.
READ ALL THE DIRECTIONS. Don’t make quick assumptions. If you have questions, try your best or call me over. You CANNOT talk with other people while others are taking the quiz!

25. Close-to-Home Example
Hurricane Fran
September 5, 1996

26. Close-to-Home Example
Eno River State Park
The sign says “The Eno River rose to the level of the bottom of this sign during Hurricane Fran on September 6, 1996”
It was ~40 feet from the current river level and at least 5’7” up

27. Hurricane Sandy: October 2012
Summary:
NYCs subways:

29. Bellringer
What are jobs/businesses that are affected by a hurricane? (this is a thinking question, not directly from your notes)

30. Hurricane Floyd, 1999

31. Mrs. Self’s
hometown

35. What are jobs/businesses that are affected by a hurricane?