⚠️ Flash Flood Warning – Des Moines, IA; Henderson, IL; Warren, IL – Friday, August 14, 2026

Flash Flood Warning issued August 14 at 3:44AM CDT until August 14 at 9:45AM CDT by NWS Quad Cities IA IL

Details

FFWDVN

The National Weather Service in Quad Cities has issued a

* Flash Flood Warning for…
Northern Des Moines County in southeastern Iowa…
Northeastern Henderson County in west central Illinois…
Warren County in west central Illinois…

* Until 945 AM CDT Friday.

* At 344 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 3 inches of rain
have fallen from south of Mediapolis to near Oquawka and Rozetta,
to near Monmouth. 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…
Monmouth, Oquawka, Mediapolis, Kirkwood, Little York, Biggsville,
Gladstone, Rozetta, Lake Warren, Kossuth, Greenbush, Coldbrook,
Bald Bluff, Berwick, Smithshire, Delabar State Park, Eleanor,
Ponemah, Big River State Forest and Monmouth Municipal Airport.

This includes the following State Parks…
Delabar State Park and Henderson County Conservation Area.

Instructions

Turn around, don’t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

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