⚠️ Flash Flood Warning – Fillmore, MN – Friday, September 18, 2026

Flash Flood Warning issued September 18 at 11:46PM CDT until September 19 at 3:45AM CDT by NWS La Crosse WI

Details

FFWARX

The National Weather Service in La Crosse has issued a

* Flash Flood Warning for…
Southern Fillmore County in southeastern Minnesota…

* Until 345 AM CDT.

* At 1146 PM CDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
1 and 3.5 inches of rain have fallen. 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…
Preston, Spring Valley, Harmony, Mabel, Canton, Highland, Cherry
Grove, Bristol, Newburg, Amherst, York, Carimona, Ostrander,
Hutton, Granger, Forestville State Park, Greenleafton and
Henrytown.

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.