⚠️ Flash Flood Warning – Clayton, IA; Fayette, IA – Saturday, September 19, 2026

Flash Flood Warning issued September 19 at 4:21AM CDT until September 19 at 8:15AM CDT by NWS La Crosse WI

Details

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.

Instructions

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.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.