If you are under a tornado warning, seek shelter immediately.
Get indoors to a pre-designated shelter area such as a basement, storm cellar, or the lowest building level. If there is no basement, go to the center of an interior room on the lowest level (closet, interior hallway) away from corners, windows, doors, and outside walls.
Shutter windows and outside doors.
If in a vehicle, trailer, or mobile home, get out immediately and go to the lowest floor of a sturdy, nearby building or storm shelter.
If unable to get indoors, lie flat in a nearby ditch or depression and cover your head with your hands. Be aware of potential flooding and flying debris.
Never try to outrun a tornado in your vehicle. Instead, leave the vehicle immediately for safe shelter.