⚠️ Flash Flood Warning – Dubuque, IA; Jackson, IA; Jo Daviess, IL; Stephenson, IL – Saturday, September 19, 2026

Flash Flood Warning issued September 19 at 4:19AM CDT until September 19 at 10:15AM CDT by NWS Quad Cities IA IL

Details

FFWDVN

The National Weather Service in Quad Cities has issued a

* Flash Flood Warning for…
Northeastern Jackson County in east central Iowa…
Dubuque County in northeastern Iowa…
Jo Daviess County in northwestern Illinois…
Stephenson County in northwestern Illinois…

* Until 1015 AM CDT.

* At 419 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 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…
Dubuque, Freeport, Galena, Asbury, Dyersville, Lena, Bellevue,
Cascade, Stockton, Epworth, East Dubuque, Farley, Warren, Peosta,
Hanover, Pearl City, Elizabeth, Cedarville, Davis and Woodbine.

This includes the following State Parks…
Apple River Canyon State Park and Lake Le-Aqua-Na State Recreation
Area.

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.

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.

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