South Dakota Flash Flood Warning - Severe | Effective 05/31/2026 15:51

Headline: 
Flash Flood Warning issued May 31 at 5:51PM CDT until May 31 at 8:45PM CDT by NWS Sioux Falls SD
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
May 31, 2026 - 3:51pm
Expires: 
May 31, 2026 - 6:45pm
Description: 
FFWFSD The National Weather Service in Sioux Falls has issued a * Flash Flood Warning for... Southeastern Hanson County in southeastern South Dakota... Northeastern Hutchinson County in southeastern South Dakota... West Central McCook County in southeastern South Dakota... * Until 845 PM CDT. * At 551 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 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 2.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. 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... Emery. Three inches of rainfall has already been reported in Emery.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.
Area Description: 
Hanson, SD; Hutchinson, SD; McCook, SD
Forcast Office: 
NWS Sioux Falls SD