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A tornado is a violent windstorm characterized by a twisting, tunnel-shaped cloud. It is spawned by a thunderstorm (or sometimes a result of a hurricane) and produced when cool air overrides a layer of warm air, forcing the warm air to rise rapidly.
Tornado Watch - Issued when conditions are favorable for the formation of tornadoes.
Tornado Warning - Issued when a tornado has been sighted by weather radar.
Landslides and Mudflows
Thunderstorms and Lightning
Nuclear Power Plants
If at Home
If at Work
If in a Vehicle
Tornadoes have been reported in every state in the U.S. and also in every season.
Contact your local or Installation's Office of Emergency Management for more information.