The document summarizes tornadoes, describing their funnel shape and varying colors depending on debris. Tornadoes form from rotating thunderstorms when cold and warm air masses collide. They can rip apart buildings, uproot trees, lift animals, and destroy entire cities within minutes. Wind speeds often exceed 300 miles per hour and tornadoes cause rain, hail, and sleet. Some notable tornadoes include the 1953 Waco, Texas tornado that was a third of a mile wide and destroyed 23 miles of land.