Immediately go to a safe location that you have identified. Bring pets with you inside the safe location, if you're home. 

In a house: A basement or interior room without windows

In a mobile home: There is NO SAFE PLACE from harm in a mobile home. During a tornado watch or warning, you should get to a shelter or other strong structure.

In a business: Look for a sign indicating an emergency shelter. This may be a restroom or refrigerated cooler. 

Make sure you bring a portable radio and/or a NOAA weather radio and pay attention to current emergency information and instructions.

Protect yourself by covering your head or neck with your arms and putting materials such as furniture and blankets around or on top of you.

If you're outdoors:

Seek shelter inside a sturdy building immediately if a tornado is approaching. Sheds and storage facilities are not safe. Neither is a mobile home or tent.  If you have time, get to a safe building.

If you're in a car, truck or other vehicle

There is no safe option when caught in a tornado in a car, just slightly less-dangerous ones. The best course of action is to drive to the closest shelter. 

If the tornado is visible, far away, and the traffic is light, you may be able to drive out of its path by moving at right angles to the tornado.

If you are caught by extreme winds or flying debris, park the car as quickly and safely as possible -- out of the traffic lanes.

Stay in the car with the seat belt on. Put your head down below the windows; cover your head with your hands and a blanket, coat, or other cushion if possible.

If you can safely get noticeably lower than the level of the roadway, leave your car and lie in that area, covering your head with your hands. 

Avoid seeking shelter under bridges, which can create deadly traffic hazards while offering little protection against flying debris.

Do not go outside to watch the storm go by.

Do not open windows or doors.