How do tornados form?
Most tornados form from thunderstorms. You need warm, moist air from the Gulf of Mexico and cold, dry air from Canada. When these two air masses meet, they create instability in the atmosphere.what is a tornado?
A tornado is a violent rotating column of air extending from a thunderstorm to the ground.
The 3 Deadliest U.S. Tornadoes
DATE LOCATION DEATHS
18 Mar 1925 Tri-State (MO/IL/IN) 695
06 May 1840 Natchez MS 317
27 May 1896 St. Louis MO 255