Iowa Severe Flash Flood Warning | Effective 09/07/2026 01:02

Headline: 
Flash Flood Warning issued September 7 at 3:02AM CDT until September 7 at 6:00AM CDT by NWS Sioux Falls SD
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
September 7, 2026 - 1:02am
Expires: 
September 7, 2026 - 4:00am
Description: 
FFWFSD The National Weather Service in Sioux Falls has issued a * Flash Flood Warning for... Southeastern Plymouth County in northwestern Iowa... Northeastern Woodbury County in west central Iowa... * Until 600 AM CDT. * At 302 AM 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 0.5 to 1.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. 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... Kingsley, Correctionville and Pierson.
Instruction: 
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.
Area Description: 
Plymouth, IA; Woodbury, IA
Forcast Office: 
NWS Sioux Falls SD
Sender: 
w-nws.webmaster@noaa.gov