Flood Watch

Heavy rainfall may increase flooding potential across portions of north central South Dakota.

* WHAT...Flooding caused by excessive rainfall is possible.

* WHERE...A portion of north central South Dakota, including the following counties, Campbell, Corson, Edmunds, McPherson and Walworth.

* WHEN...Until midnight CDT /11 PM MDT/ tonight.

* IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded.

* ADDITIONAL DETAILS... - Heavy rainfall across portions of north central South Dakota may bring an additional 1 to 3 inches. This is in addition to the 1 to 3 inches that fell across parts of Campbell and Walworth counties earlier this morning. - http://www.weather.gov/safety/flood