Although tornadoes occur in many parts of the world, they are found most frequently in the
- A tornado is a violently rotating column of air extending from a thunderstorm to the ground.
- Tornadoes cause an average of 70 fatalities and 1,500 injuries in the
each year. U.S.
- The strongest tornadoes have rotating winds of more than 250 mph.
- Tornadoes can be one mile wide and stay on the ground over 50 miles.
- Tornadoes may appear nearly transparent until dust and debris are picked up or a cloud forms within the funnel. The average tornado moves from southwest to northeast, but tornadoes have been known to move in any direction.
- The average forward speed is 30 mph but may vary from nearly stationary to 70 mph.
Tornado Watch: Tornadoes are possible in your area. Remain alert for approaching storms. Know what counties or parishes are in the watch area by listening to NOAA Weather Radio or your local radio/television outlets.
Tornado Warning: A tornado has been sighted or indicated by weather radar.