The center of a tornado is known as the eye. It is the calmest area of the tornado, but it may contain some downward winds.
Tornadoes are formed from energy that is released in thunderstorms and concentrated in a small area. In the United States, tornadoes are most common in the central plains of North America. They occur most often in the spring or summer during the afternoon or evening. Winds produced by tornadoes can reach up to 300 miles per hour. The biggest threats to humans and animals from tornadoes is flying debris and the possibility of being tossed around in the wind.