The National Weather Service in Aberdeen SD has issued a Flood Warning for the following rivers in South Dakota. Big Sioux River near Castlewood affecting Hamlin County. .For sites with a river forecast, the forecast includes precipitation through the next 24 hours. Any future precipitation could affect the forecasts. * WHAT. Minor flooding is occurring and minor flooding is forecast. * WHERE. Big Sioux River near Castlewood. * WHEN. From early this morning to late tonight. * IMPACTS. At 9.0 feet, water overtops the culvert on 184th Street and significant agricultural flooding begins north of Castlewood. At 10.0 feet, 184th Street begins to flood. * ADDITIONAL DETAILS. - At 2:45 AM CDT Sunday the stage was 9.1 feet. - Recent Activity. The maximum river stage in the 24 hours ending at 2:45 AM CDT Sunday was 9.1 feet. - Forecast. The river is forecast to rise to 9.4 feet this morning. It is then forecast to fall below flood stage late this evening. - Flood stage is 9.0 feet. - http://www.weather.gov/safety/flood
