Alert USA
weather NWS severe Calhoun, IL; Greene, IL; Jersey, IL June 15, 2026 at 5:09 PM

Flood Warning issued June 15 at 12:09PM CDT until June 23 at 1:00AM CDT by NWS St Louis MO

...The Flood Warning continues for the following rivers in Illinois...

Illinois River at Hardin.

River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours.

* WHAT...Minor flooding is forecast.

* WHERE...Illinois River at Hardin.

* WHEN...From late tonight to Tuesday, June 23.

* IMPACTS...At 25.0 feet, Flood Stage. Lowland flooding of unprotected agricultural land begins.

* ADDITIONAL DETAILS... - At 11:30 AM CDT Monday the stage was 24.7 feet. -

Flooding in Calhoun, IL; Greene, IL; Jersey, 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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