1. Rules of precipitation Rain will occur on the cold front. Rain will occur in front of the warm front

2. Happy high cool and dry.

3. Safety Have a plan Water Emergency kit First aid kit Flash light

4. Weather Forecasting

7. Major Storms –Thunderstorms Conditions –Uplift of air –Cumulonimbus clouds http://www.youtube.com/watch?v=kuY4c dwqo_Q&feature=related

8. Stages –Cumulus »Air is lifted and cools adiabatically to the dew point and a cumulus cloud develops. »Heat of vaporization is released and accelerates the uplift. –Mature »When the moisture that is produced reaches the surface of the Earth »This series of updrafts, downdrafts, and precipitation release electrical charges which become the lightening associated with the storm –Final »All of the updrafts are cut off and only downdrafts exist. Lightening Thunder hail

9. These hailstones fell from a thunderstorm in Iowa, damaging automobiles, structures, and crops.

10. You Tube Hail storm

11. –Tornados Most violent, focused storm on Earth Speeds in excess of 300 km/hr (200 mi/hr) –Hurricanes A hurricane is a violent storm that is produced over the warm tropical ocean near the equator. Tropical Cyclone Fueled by warm water

12. This is a satellite photo of hurricane John, showing the eye and counterclockwise motion.

13. Cross section of a hurricane.

14. Occur in many parts of the world Found most frequently in the United States east of the Rocky Mountains Most frequent during the spring and summer months. Capable of tremendous destruction with wind speeds of 250 mph or more. Damage paths can be in excess of one mile wide and 50 miles long. Defined as a violently rotating column of air extending from a thunderstorm to the ground.

15. Tornado Formation

16. Tornado Formation cont.d...

17. The End