Tornado winds can collapse walls and shatter windows. People caught outdoors or in cars should head for the nearest building or find a ditch and cover their heads with their hands. Tornadoes don't travel in a predictable path and easily can toss cars through the air. At a school, students take shelter in basements or inner halls and cover their heads. Most schools in Tornado Alley states have tornado drills for students.
Teachers show students what to do and where to go if a tornado happens while they are at school.
Along with violent winds, tornadoes also have dangerous lightning and hail. During a tornado, people shouldn't use their phones because lightning can travel along phone wires and hurt them. Each year severe tornadoes hit places in the United States. These tornadoes cause damage, injuries and death. Flying debris causes most tornado-related injuries and deaths.