Flood Warning Issued for Illinois River at Meredosia in Morgan and Pike Counties, IL
This alert is no longer in effect.
NOAA issued it on July 21, 2026, 4 weeks ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS St Louis MO has issued a Flood Warning for the Illinois River at Meredosia, with minor flooding forecast from Friday evening until further notice.
Read this weather record in 30 seconds
- Record type
- Flood Warning
- Affected area
- Morgan and Pike Counties, IL
- Issued
- July 21, 2026
- Issuing authority
- NWS St Louis MO
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: historical. It was issued 4 weeks ago; use the issuing agency's live warning service for current conditions in Morgan and Pike Counties, IL.
Alert Details
Flood Warning issued by NWS St Louis MO on June 18 at 11:43AM CDT. The alert is effective from 2026-06-18T11:43:00-05:00 with onset at 2026-06-19T21:00:00-05:00 and expires 2026-06-19T23:45:00-05:00.
Affected Areas
Morgan County, IL and Pike County, IL, specifically the Illinois River at Meredosia.
What You Should Do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Expected Conditions
Minor flooding is forecast. At 11:00 AM CDT Thursday the stage was 15.9 feet and rising. The river is expected to rise above flood stage (17.0 feet) late tomorrow evening and continue rising to a crest of 18.4 feet early Wednesday morning. At 18.0 feet, the City of Meredosia plugs storm sewer outlets.
Timeline
The warning is in effect from Friday evening until further notice.
Original source: NOAA Official Notice ↗
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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 (845 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to July 21, 2026.
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