Severe Storm System Threatens To Flood Mississippi and Ohio River Valleys

METROPOLIS, IL - APRIL 27: Storm clouds roll in over flooded farmland April 27, 2011 near Metropolis, Illinois. Severe storms have caused rivers and streams to rise in parts of southeastern Missouri and southern Illinois. Severe storms have caused rivers and streams to rise in parts of southeastern Missouri and southwestern Illinois with the Ohio river flooding so far haveing caused at least a dozen families to leave their homes. (Photo by Whitney Curtis/Getty Images)