Iowa Severe Flash Flood Warning | Effective 09/19/2026 02:21

Headline: 
Flash Flood Warning issued September 19 at 4:21AM CDT until September 19 at 8:15AM CDT by NWS La Crosse WI
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
September 19, 2026 - 2:21am
Expires: 
September 19, 2026 - 6:15am
Description: 
FFWARX The National Weather Service in La Crosse has issued a * Flash Flood Warning for... Clayton County in northeastern Iowa... Fayette County in northeastern Iowa... * Until 815 AM CDT. * At 421 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 3 inches of rain have fallen. Additional rainfall amounts of 1 to 2 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... West Union, Guttenberg, Elkader, Postville, Monona, Fayette, McGregor, Garnavillo, Elgin, Clermont, Maynard, Hawkeye, Arlington, Marquette, Farmersburg, Waucoma, Volga, Luana and Wadena.
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: 
Clayton, IA; Fayette, IA
Forcast Office: 
NWS La Crosse WI
Sender: 
w-nws.webmaster@noaa.gov