NWS: Big Sioux River basin could see minor flooding

February 10, 2023
Mike Tanner

ABERDEEN, S.D.–The Aberdeen office of the National Weather Service (NWS)  released its first spring flood outlook Thursday covering rivers and streams in northeast South Dakota.

Even though there is sno pack across most of the area, due to ongoing drought conditions, the chances for minor, moderate or major flooding across much of the region are generally below normal.

The exception is across the Big Sioux basin in Codington and Hamlin counties, where the chances are above normal for minor flooding.

Forecaster say the flood threat this spring, both in location and severity, will be largely determined by future rain or snowfall.

The next update will be released on February 23rd.