Occurrence- Most Tornadoes occur in the Midwest known as Tornado alley. They can strike anywhere in the u.s. This alley starts in Texas and goes through Oklahoma, Kansas and the Dakota ending in Canada. Northern Tornadoes tend to hit in the southern states. The Belt from Kansas to Kentucky is the most vulnerable in the spring. The summer is a worrisome time for the Great Plains, upper Midwest, and the Canadian Prairie Provinces. There is about 800 Tornadoes a year. 

Formation-Tornadoes originated from severe thunderstorms called super cells. A higher level of cold air sometimes traps rising warm air. As the warm air pushes upward, It can suddenly brake through causing thunderstorm clouds to form. The carbonation of these clouds and strong windstorms can make the rising start to spin. As this column of spinning air gets wider it grows into a Tornado.

Characteristics -Tornadoes are powerful storms that bust through the flat lands. Tornadoes are large gray thunderclouds that spin at various speeds. They can take down a building in less than a minute. Tornadoes are very large and dangerous to obtain.

Prevention-The national weather service will alert the entire viewing area and when and where it will hit. You can't prevent or stop a Tornado from coming, but you can protect you and your family. You can go to lower ground to protect yourself. If you have a basement or a storm cellar I advise you to go there. You should stay as far away from a window as you can.