Flood Warning Issued for Macoupin County, Illinois
This alert is no longer in effect.
NOAA issued it on May 9, 2026, 3 months 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.
A Flood Warning is in effect for Macoupin County in southwestern Illinois until 4:00 AM CDT on April 28, 2026, due to excessive rainfall causing flooding in low-lying areas.
Read this weather record in 30 seconds
- Record type
- Flood Warning
- Affected area
- Southwestern Illinois
- Issued
- May 9, 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 3 months ago; use the issuing agency's live warning service for current conditions in Southwestern Illinois.
Alert Details
The Flood Warning has been issued by NWS St Louis MO. It is effective from April 27, 2026, at 11:43 PM CDT until April 28, 2026, at 4:00 AM CDT.
Affected Areas
This warning affects Macoupin County in southwestern Illinois, including the following locations: Carlinville, Staunton, Virden, Gillespie, Brighton, Girard, Mount Olive, Bunker Hill, Benld, Palmyra, Shipman, Wilsonville, Sawyerville, Mount Clare, East Gillespie, Eagarville, Piasa, Medora, Nilwood, and White City. It also includes Beaver Dam State Park and Interstate 55 in Illinois between exits 41 and 44.
What You Should Do
Turn around, don't drown when encountering flooded roads. Be aware of your surroundings and do not drive on flooded roads.
Expected Conditions
Flooding caused by excessive rainfall is occurring, with between 2 and 5 inches of rain having fallen. Flooding impacts include rivers, creeks, streams, and other low-lying and flood-prone locations.
Timeline
The alert is effective from April 27, 2026, at 11:43 PM CDT and expires on April 28, 2026, at 4:00 AM CDT.
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 (1,080 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to May 9, 2026.
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