If you are outdoors , if at all possible, get inside a building. If shelter is not available or there is no time to get indoors, lie in a ditch or low-lying area or crouch near a strong building. Use your arms to protect your head and neck. Be aware of the potential for flooding. If you are in a car or truck , never try to outdrive a tornado.
Tornadoes can change direction quickly and can lift a car or truck and toss it through the air.
Get out of the car immediately and take shelter in a nearby building. If there is no time to get indoors, get out of the car and lie in a ditch or low-lying area away from the vehicle. Be aware of the potential for flooding. Give first aid when appropriate. Don't try to move the seriously injured unless they are in immediate danger of further injury.