Active Weather Alerts
River Flood Warning
Issued: 2:56 PM Aug. 22, 2025 – National Weather Service
...FLOOD WARNING IN EFFECT FROM THIS MORNING TO SUNDAY MORNING... * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Big Sioux River near Castlewood. * WHEN...From this morning to Sunday morning. * IMPACTS...At 10.0 feet, 184th Street begins to flood. * ADDITIONAL DETAILS... - At 9:45 AM CDT Friday the stage was 9.1 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:45 AM CDT Friday was 9.1 feet. - Forecast...The river is expected to rise to a crest of 9.7 feet just after midnight tonight. It will then fall below flood stage early Sunday morning. - Flood stage is 9.0 feet. - http://www.weather.gov/safety/flood &&
River Flood Warning
Issued: 2:54 PM Aug. 22, 2025 – 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 1644.0 feet, significant flooding of crop and pasture land begins. * ADDITIONAL DETAILS... - At 9:00 AM CDT Friday the stage was 1644.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:00 AM CDT Friday was 1644.6 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: www.water.noaa.gov && Fld Observed Forecasts (unknown time) Location Stg Stg Day/Time d1 d2 d3 Big Sioux River Estelline 1644.0 1644.4 Fri 9 am MSG MSG MSG &&
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