Spring Flood Risk
After a year of reprieve, the Red River of the North between eastern North Dakota and northwest Minnesota, and the Souris River in North Dakota have the potential for moderate and major flooding. Devils and Stump Lakes in northeast North Dakota have a 50% chance of rising approximately 2 ft., which would flood 20,000 acres of farmland and roadways.
The melting of late-season snow may cause minor to moderate flooding in the upper Mississippi River basin, including southern Wisconsin, northern Illinois and northern Missouri. The tributaries in the plains of the upper Missouri River basin, specifically along the Milk River in eastern Montana, the Big Sioux River in South Dakota and the Little Sioux River in Iowa, may also see minor to moderate flooding. With significant frozen groundcover in these areas, spring flood risk is highly dependent on rainfall and the speed of the snowmelt.
Areas along the middle Mississippi, lower Missouri and Ohio River basins have already experienced minor flooding this year and the threat of minor flooding will continue through the spring. These basins include portions of Kansas, Missouri, Illinois, eastern Iowa, Indiana, Ohio, Kentucky and Tennessee. Minor flooding also is possible for the lower Mississippi River basin and in the Southeast, including portions of Arkansas, Alabama, Louisiana, Mississippi and Georgia.