1. By: Eleanor Joyce City of Salem Schools
Weather Phenomena
By: Eleanor Joyce
City of Salem Schools

2. Hurricane activity in the United States.

3. Satellite view of a hurricane in the Caribbean Sea

4. Parts of the storm
Winds are breezy at the edge of the storm and increase to a maximum in the eyewall. Winds are relatively light in the ‘eye’ itself.

5. The Saffir-Simpson Hurricane Table
Damage Sustained Storm Resulting
Winds Surge Category mph ft Trees/Power Down
Category mph ft Sign, roof & building damage
Category mph ft Widespread damage/floods
Category mph ft Destruction buildings/floods
Category mph ft Catastrophic damage/floods
Categories 3,4 & 5 are major hurricanes!

6. Hurricane Facts
Tropical storms need warm water(at least 80 degrees) to grow
The average hurricane uses as much energy in a day as the entire US in 6 months
Hurricanes can not be stopped with nuclear weapons or cloud seeding

7. Why are hurricanes so destructive?
1. Wind
2. Rain
3. Storm Surge
4. Tornadoes

8. Wind damage

9. No Utilities

10. No Utilities
Including lights, air conditioning, refrigeration, cooking, fans, television, stoplights, gasoline pumps, computers, clocks, banks (ATMs), freezers, refrigerators.
Water and sewage treatment centers are also disabled. This creates major health problems. Getting drinking water is a problem

11. HEAVY
RAIN
AND
FLOODING

12. IT RAINS ONE INCH PER HOUR
Slow moving storms can easily dump inches of rain over a wide area.
Debris clogs sewers and drainage ways.
Flood waters contaminate drinking water
High water forces insects, snakes and other wild animals to higher ground (your home).
Flood damage not covered by home owners insurance.

13. Storm Surge
Low pressure and converging winds raise sea levels under the hurricane. When the hurricane makes landfall, so does the higher sea level. Powerful waves ride on top of the surge.
Storm surge destroys coastal buildings and inundates barrier islands.
Storm surge can travel well inland through harbors, rivers, creeks and canals.
Storm surge is responsible for the greatest loss of life from a natural disaster in US history, Galveston Is.

14. Storm Surge

15. Tornadoes
Hurricanes often create tornadoes bringing even more severe damage to regions struck by hurricanes

16. Regions in the U. S that are in “tornado alley.”

17. Tornadoes are called funnel clouds
usgs photo

18. Map of South Asia and Southeast Asia showing the wind patterns of the winter and summer monsoons

19. Working in the rice paddies
Residents of Asia and Southeast Asia depend on the Monsoon rains to grow rice.

20. Bangladesh is often flooded during the monsoon season