Illinois Severe Flood Warning | Effective 06/18/2026 09:02

Headline: 
Flood Warning issued June 18 at 11:02AM CDT until June 19 at 7:00PM CDT by NWS Lincoln IL
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
June 18, 2026 - 9:02am
Expires: 
June 19, 2026 - 1:15am
Description: 
...The Flood Warning continues for the following rivers in Illinois... Spoon River at London Mills affecting Fulton and Knox Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Spoon River at London Mills. * WHEN...Until tomorrow evening. * IMPACTS...At 15.0 feet, Minor flooding begins to agricultural land near the river. * ADDITIONAL DETAILS... - At 10:45 AM CDT Thursday the stage was 15.6 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:45 AM CDT Thursday was 15.6 feet. - Forecast...The river is expected to rise to a crest of 16.0 feet this evening. It will then fall below flood stage early tomorrow afternoon. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood
Instruction: 
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.
Area Description: 
Fulton, IL; Knox, IL
Forcast Office: 
NWS Lincoln IL