Illinois Severe Flash Flood Warning | Effective 07/20/2026 11:11

Headline: 
Flash Flood Warning issued July 20 at 1:11PM CDT until July 20 at 6:15PM CDT by NWS Quad Cities IA IL
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
July 20, 2026 - 11:11am
Expires: 
July 20, 2026 - 4:15pm
Description: 
At 111 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1.5 and 3.5 inches of rain have fallen. Additional rainfall amounts of 0.5 to 1 inch 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... Moline, Rock Island, Muscatine, Milan, Coal Valley, Andalusia, Reynolds, Oak Grove, Taylor Ridge, Illinois City, Fairport, Edgington, Loud Thunder Scout Camp, Loud Thunder Forest Preserve, Coyne Center and Blackhawk State Park. This includes the following highways... Interstate 280 between mile markers 11 and 18. Interstate 74 in Illinois between mile markers 1 and 6.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Area Description: 
Rock Island, IL
Forcast Office: 
NWS Quad Cities IA IL