Tornado wreckage in the Alberta City neighborhood of Tuscaloosa, Alabama
Mandel Ngan/AFP/Getty Images
May 2, 2011 The National Oceanic and Atmospheric Administration estimates that more than 300 tornadoes killed more than 340 people over two days in late April.
July 30, 2010 A giant hailstone found in Vivian, SD on July 23 is now officially the largest found in the U.S.
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