If you're in a house with a basement: Get into the basement and under sturdy protection (like a work bench or table) or cover yourself with a mattress or sleeping bag. Avoid being under heavy objects on the floor above you (i.e. refrigerator).

If you're in a house with NO basement: Avoid windows and go to a room in the center of the building, like a bathroom or closet, under a stairwell or in an interior hallway with no windows. Crouch as low as possible to the floor facing down and cover your head with your hands. Surround yourself with pillows or couch cushions.

If you're in a mobile home: Get out! Even tied down, a mobile home is not safe in a tornado.

If you're outdoors: Find a sturdy building if possible. If not, lie flat and face-down on low ground, protecting the back or your head with your arms. Stay away from objects that could be moved by the wind.

If you're in a vehicle: Park the automobile out of traffic lanes. Get to a sturdy building, or get to low ground and lie flat, face-down. Avoid seeking shelter under bridges.

If you're at a school: Listen to teaching staff or administration for directions. Auditoriums, gyms and other free-span rooms are not an ideal shelter. Go to interior rooms on the lowest floor, but avoid halls that open to the outside in any direction. Stay away from glass. Crouch and cover your head with your hands.

If you're at a shopping center, hospital or factory: Go to interior rooms and halls on the lowest floor. Stay away from glass-enclosed places or areas with wide-span roofs. Crouch down and cover your head with your hands.