Flood Warning — Knox County, Illinois
Flooding is occurring or imminent along rivers, streams, or low-lying areas.
Current Status
🌊 Active: Flood Warning
Flood Warning issued August 14 at 3:26PM CDT until August 18 at 4:36PM CDT by NWS Lincoln IL
...The Flood Warning is extended for the following rivers in Illinois... Spoon River at London Mills affecting Knox and Fulton Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is forecast. * WHERE...Spoon River at London Mills. * WHEN...From this evening to Tuesday afternoon. * ADDITIONAL DETAILS... - At 2:45 PM CDT Friday the stage was 12.3 feet. - Forecast...The river is expected to rise above flood stage late this evening to a crest of 20.4 feet early Sunday afternoon. It will then fall below flood stage late Tuesday morning. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood
Effective August 14, 2026 at 4:26 PM ET · Expires August 15, 2026 at 8:30 AM ET
Event Details
Event Type
Flood Warning
Severity
severe
Issued By
NWS Lincoln IL
Expires
August 15, 2026 at 8:30 AM ET
Last Checked
just now
What To Do
📋 Official NWS Guidance
Persons with interests along this river need to remain aware of the latest forecasts and associated flood risk for their area. Stay tuned for further updates on this flooding situation. Additional information is available at www.weather.gov.
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Frequently Asked Questions
What does a Flood Warning mean for Knox County, Illinois?
Flooding is occurring or imminent along rivers, streams, or low-lying areas.
Is this Flood Warning currently active?
Yes — this alert is active as of our last check (just now). It's set to expire August 15, 2026 at 8:30 AM ET.
How do I get notified about Flood Warning alerts for Knox County?
Download StormCast free on Google Play and set Knox County, Illinois as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.