Weather's Dozen: 2011 Breaks U.S. Billion-Dollar Disaster Record
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Mississippi River Flooding
During the spring and summer, persistent rainfall -- nearly 300 percent normal precipitation amounts in the Ohio Valley, according to NOAA -- combined with melting snowpack caused historical flooding along the Mississippi River and its tributaries. Estimated economic losses ranged from $3 billion to $4 billion. At least two deaths are blamed on the flooding.
Here, floodwater engulfs a farm after the Army Corps of Engineers blew a massive hole in a levee at the confluence of the Mississippi and Ohio rivers to divert water from the town of Cairo, Ill., May 3, 2011 near Wyatt, Mo.
According to Weather.com, April was the wettest month on record in Kentucky, Illinois, Indiana, Ohio, West Virginia and Pennsylvania. Missouri, Arkansas and Tennessee all finished with a top five wettest April.