


Flash Flood Warning
Issued by NWS Sioux Falls, SD
Issued by NWS Sioux Falls, SD
849 WGUS53 KFSD 220438 FFWFSD SDC005-221030- /O.NEW.KFSD.FF.W.0022.250822T0438Z-250822T1030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Sioux Falls SD 1138 PM CDT Thu Aug 21 2025 The National Weather Service in Sioux Falls has issued a * Flash Flood Warning for... Northeastern Beadle County in east central South Dakota... * Until 530 AM CDT. * At 1138 PM CDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 1.5 and 3 inches of rain have fallen. The expected rainfall rate is 1 to 2 inches in 1 hour. Additional rainfall amounts of 1 to 3 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Iroquois and Yale. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don`t drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Be aware of your surroundings and do not drive on flooded roads. && LAT...LON 4437 9785 4436 9785 4433 9785 4463 9836 4463 9808 4463 9798 4463 9794 4463 9790 4463 9788 4463 9786 4454 9786 4438 9785 FLASH FLOOD...RADAR AND GAUGE INDICATED EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR $$ SG