Flood Warning Issued for Illinois River near Havana
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A Flood Warning remains in effect for the Illinois River near Havana affecting Cass, Fulton and Mason Counties until late Thursday night.
Read this weather record in 30 seconds
- Record type
- Flood Warning
- Affected area
- Central Illinois
- Issued
- August 24, 2026
- Issuing authority
- NWS Lincoln IL
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.
Alert Details
A Flood Warning has been issued by the National Weather Service Lincoln IL. The alert is effective from August 24 at 9:45AM CDT and remains in effect until August 28 at 1:00AM CDT.
Affected Areas
The warning covers Cass, Fulton, and Mason Counties in Illinois, specifically the Illinois River near Havana.
What You Should Do
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.
Expected Conditions
Minor flooding is occurring and minor flooding is forecast. At 8:45 AM CDT the stage was 16.0 feet. Flood stage is 14.0 feet. At 14.0 feet, minor flooding begins to agricultural areas not protected by levees. The maximum river stage in the 24 hours ending at 8:45 AM CDT was 16.3 feet.
Timeline
The Flood Warning is now in effect until late Thursday night. The river is expected to fall below flood stage Thursday evening and continue falling to 11.6 feet Monday, August 31.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,038 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to August 24, 2026.
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