Alert USA
weather NWS severe Henry, IL; Mercer, IL; Rock Island, IL; Warren, IL June 17, 2026 at 1:45 PM

Flash Flood Warning

FFWDVN

The National Weather Service in Quad Cities has issued a

* Flash Flood Warning for... Southwestern Henry IL County in northwestern Illinois... Eastern Mercer County in northwestern Illinois... South Central Rock Island County in northwestern Illinois... Northern Warren County in west central Illinois...

* Until 245 PM CDT.

* At 845 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 3 inches of rain have fallen. Additional rainfall

Flooding in Henry, IL; Mercer, IL; Rock Island, IL; Warren, IL can cut off roads with little warning, damage homes near low-lying areas, and disrupt power and water service. Even a few inches of moving water can carry away a vehicle.

This report is based on information from NWS, monitored by Alert USA's verified emergency feed.

Alert USA anticipates a high chance of travel disruptions, elevated property risk in low-lying areas, and possible power outages while the event is active.

Recommended steps: avoid flooded roads — turn around, don't drown; move to higher ground if you are in a low-lying area; charge phones and prepare for power loss; check on family and neighbors.

Alert USA is tracking this flood event and will update this report as verified information becomes available.

Verified by Alert USA • NWS

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