Pg. 250 For each type of Weather System: Thunderstorms Tornadoes Pg. 250 For each type of Weather System: Hurricanes Winter Storms Drawing (colored) How it forms Important facts The more facts you have, the happier you will be next week! 

A watch indicates that the conditions are right for a thunderstorm or a tornado, or a flash flood. A warning indicates that the severe weather has been spotted.

Severe Thunderstorms can produce: High winds/ tornadoes Hail Flash floods Lightening

Thunderstorms Can occur along cold fronts About 45,000 thunderstorms occur each day The United States experiences about 100,000 thunderstorms a year – most frequently in Florida and the Gulf Coast region

Lightening When lightening strikes, energy is released. This energy causes air to expand rapidly and send out sound waves. Thunder – sound that results from rapid expansion of air along the lightning strike. Have a balloon and blow it up. Cause friction and shock someone. This is lightening. Now pop the balloon. The rapid expansion of the air creates a sound, thunder

Tornadoes About 75% of the world’s tornadoes occur in the United States A tornado is a violent, whirling column of air in contact with the ground. Strong wind from a thunderstorm spirals downward, creating a funnel cloud. If it touches the ground, then it is a tornado.

Most powerful storms on Earth Hurricanes Hurricanes develop most often in late summer when water temperatures are warm enough to provide the necessary heat and moisture to the air Begins as a tropical disturbance that consists of disorganized clouds and thunderstorms http://www.businessinsider.com/strongest-atlantic-hurricanes-wind-speed-allen-irma-wilma-2017-9/#hurricane-katrina-2005-175-mph-1 Most powerful storms on Earth

Winter Storms Winter storms form from quickly moving cold fronts high winds, very low temperatures , and large accumulations of snow

Storms from the North – Dry, light Snow

Storms from the South – Wet, heavy snow