The Flood Warning is extended for the following rivers in South Dakota. Big Sioux River near Brookings affecting Moody and Brookings Counties. . The Flood Warning continues for the following rivers in South Dakota. Big Sioux River near Bruce affecting Brookings County. Big Sioux River near Estelline affecting Hamlin and Brookings Counties. * WHAT. Moderate flooding is occurring. * WHERE. Big Sioux River near Bruce. * WHEN. Until further notice. * IMPACTS. At 10.5 feet, 198th Street and 199th Street between 466th and 467th avenues are flooded, as is 202nd Street between 465th and 467th avenues, and 465th Avenue between 203rd and 204th streets. * ADDITIONAL DETAILS. - At 8:45 AM CDT Wednesday the stage was 10.5 feet. - Recent Activity. The maximum river stage in the 24 hours ending at 8:45 AM CDT Wednesday was 10.5 feet. - Forecast. No forecast is available for this location. - Flood stage is 8.0 feet. - Stay up to date with the latest river observations and forecasts at: www.water.noaa.gov