One of the tornadoes, given the rating of EF-2, touched down in the town of Tylertown, MS, wiping out entire neighborhoods.

A recent tornado in South Dakota was given the relatively rare designation of EF-U due to the area in which it touched down.

Millions of Americans across the country are on alert for a severe weather outbreak as violent, long-track tornadoes with ...

A satellite tornado forms around the main tornado near Dupree, South Dakota on June 16, 2010. These tornadoes form when strong low-level wind interactions within the supercell create smaller-scale ...