The death toll from a series of tornadoes that hit the southern United States on April 27, an increase of up to 340 people, according to CNN. Suffered the most from Alabama tornadoes: according to Associated Press, the disaster claimed the lives of 246 residents of the state.
Tornadoes in 2011 recognized as the second in the number of casualties in U.S. history. The most destructive tornado occurred in the United States in March 1925 — then the disaster in the states of Missouri, Illinois and Indiana killed 747 people.
Tornado or waterspout — atmospheric vortices formed in a thunderstorm cloud and spreads down, often up to the surface of the earth in the form of arms or trunk cloud of tens or hundreds of meters.