Active Weather Alerts
River Flood Warning
Issued: 10:39 PM Jul. 9, 2026 – National Weather Service
...FLOOD WARNING IN EFFECT FROM THIS AFTERNOON TO LATE TONIGHT... * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Big Sioux River near Castlewood. * WHEN...From this afternoon to late tonight. * IMPACTS...At 9.0 feet, water overtops the culvert on 184th Street and significant agricultural flooding begins north of Castlewood. * ADDITIONAL DETAILS... - At 4:45 PM CDT Thursday the stage was 9.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 4:45 PM CDT Thursday was 9.0 feet. - Forecast...The river is expected to fall below flood stage this evening and continue falling to 5.6 feet early Tuesday afternoon. - Flood stage is 9.0 feet. - http://www.weather.gov/safety/flood &&
River Flood Warning
Issued: 1:47 PM Jul. 9, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE... * WHAT...Minor flooding is occurring. * WHERE...Big Sioux River near Estelline. * WHEN...Until further notice. * IMPACTS...At 1645.5 feet, widespread flooding of agricultural lands begins. * ADDITIONAL DETAILS... - At 8:00 AM CDT Thursday the stage was 1644.8 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:00 AM CDT Thursday was 1644.8 feet. - Forecast...No forecast is available for this location. - Flood stage is 1644.0 feet. - Stay up to date with the latest river observations and forecasts at: water.noaa.gov &&
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