Tornadoes are funnel-shaped clouds that can cause massive destruction on the ground. Their winds can swirl faster than 260 miles per hour! In addition to factual information, youngsters will learn about how such extreme weather affects the lives of people in areas where these atmospheric storms are common. Using her acclaimed combination of clear wording and detailed illustrations, Gibbons explains how tornadoes form, the scale used for classifying them, and what to do in case one should be near you.