Tornadoes occur just about everywhere in the world, including Britain occasionally.
The place that sees the most tornadoes is the flat plains of Tornado Alley in America's Mid-West.
Also known as twisters
Tornadoes form when a warm wind meets a cold one. As the two winds move around each other, a spiral of spinning air forms, known as a vortex.
The air in a vortex spins at over 480 km/h (300 mph).
As you can imagine, wind that strong destroys everything in its path.
Objects, animals and even people have all been known to be picked up and hurled many miles away.