Headline:
Flash Flood Warning issued September 20 at 2:40AM CDT until September 20 at 7:30AM CDT by NWS Quad Cities IA IL
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
September 20, 2026 - 12:40am
Expires:
September 20, 2026 - 5:30am
Description:
At 240 AM CDT, Doppler radar indicated thunderstorms producing heavy
rain moving back across the warned area. Between 1 and 2 inches of
rain has already fallen from earlier activity. Additional rainfall
amounts of 1 to 3 inches are possible in the warned area over the
next few hours. 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...
Davenport, Moline, Rock Island, Bettendorf, Muscatine, East Moline,
Kewanee, Aledo, Cambridge, Silvis, Geneseo, Eldridge, Colona,
Milan, Le Claire, Coal Valley and Galva.
This includes the following State Parks...
Big Bend Fish and Wildlife Area, Johnson-Sauk Trail State Recreation
Area and Prophetstown State Park.
This includes the following highways...
Interstate 74 in Iowa between mile markers 1 and 5. Interstate 280
between mile markers 1 and 18. Interstate 80 in Iowa between mile
markers 279 and 306. Interstate 80 in Illinois between mile markers 1
and 43. Interstate 74 in Illinois between mile markers 1 and 33.
Interstate 88 between mile markers 1 and 32...and between mile
markers 36 and 43.
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.
Be aware of your surroundings and do not drive on flooded roads.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
Area Description:
Clinton, IA; Muscatine, IA; Scott, IA; Bureau, IL; Henry, IL; Mercer, IL; Rock Island, IL; Whiteside, IL
Forcast Office:
NWS Quad Cities IA IL
Sender:
w-nws.webmaster@noaa.gov