1. VIII. Violent weather

2. A. Thunderstorms
Definition- small storm with precipitation, thunder, & lightning.
Form from cumulonimbus clouds (thunderheads), warm air rises quickly.

3. b. Lightning- electric discharge, spark 1
b. Lightning- electric discharge, spark 1.) Temp from inside a lightning bolt is degrees C. 2.) Temp makes air expands explosively = thunder.

5. What Really Happens When Lightning Strikes Sand: The Science
fulgurite—hollow, glass-lined tubes with a sandy outside. Petrified lightning.

6. Hail Formation

7. Hail

8. Hail damage

9. Tornados

10. B. Tornados
Definition- Whirling, funnel- cloud that touches the ground.
Cumulonimbus cloud, warm air (low pres.) in bottom
Warm air rotates with incoming winds
Occur on a warm day, when ground is warm

11. Classifications of tornados.

13. Joplin Mis. Tornado

14. Huricanes

15. C. Hurricane
Hurricanes form over a large mass of warm ocean water during the warmer months.
Air from surrounding areas with higher air pressure pushes in to the low pressure area.
Then that “new” air becomes warm and moist and rises, too. As the warm air continues to rise, the surrounding air swirls in to take its place.
The whole system of clouds and wind spins and grows, fed by the ocean’s heat and water evaporating from the surface.

16. Hurricane Facts
Hurricane season in the Atlantic Ocean runs from June 1 to November 30.
The word hurricane comes from the Taino Native American word, hurucane, meaning evil spirit of the wind.
The most violent winds and heaviest rains take place in the eye wall, the ring of clouds and thunderstorms closely surrounding the eye.
Every second, a large hurricane releases the energy of 10 atomic bombs.

17. Hurricane Patricia 2015

18. Hurricane Categories

19. Hurricane Questions. Describe hurricanes and their life cycle.
Explain how hurricanes produce their damage.
Show how the Weather Service tracks hurricanes and differentiates between watches and warnings.
How are Naming and forecasting Hurricanes done?

20. Hurricane Lab