NOAA: Imminent Flood Threat in Midwest, South and East Also at Risk
"Major flooding has begun and is forecast to continue through spring in parts of the Midwest according to NOAA’s National Weather Service. The South and East are also more susceptible to flooding as an El Niño influenced winter left the area soggier than usual.

Overall, more than a third of the contiguous United States has an above average flood risk –– with the highest threat in the Dakotas, Minnesota and Iowa, including along the Red River Valley where crests could approach the record levels set just last year.

Supporting the forecast of imminent Midwest flooding is a snowpack more extensive than in 2009 and containing in excess of 10 inches of liquid water in some locations. Until early March, consistently cold temperatures limited snow melt and runoff. These conditions exist on top of: above normal streamflows; December precipitation that was up to four times above average; and the ground which is frozen to a depth as much as three feet below the surface..."