Flash Flood Warning Issued for McLean County, IL
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A Flash Flood Warning is in effect for central McLean County until 8:30 AM CDT due to ongoing life-threatening flash flooding from heavy rainfall.
Read this weather record in 30 seconds
- Record type
- Flash Flood Warning
- Affected area
- Central McLean County, Illinois
- Issued
- August 15, 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
The National Weather Service in Lincoln has issued a Flash Flood Warning for central McLean County in central Illinois. The alert is effective from 2:36 AM CDT on August 15, 2026, until 8:30 AM CDT on August 15, 2026.
Affected Areas
Central McLean County in central Illinois, including Bloomington, Normal, Downs, and Central Illinois Regional Airport. Affected highways include Interstate 39 between mile markers 0 and 1, Interstate 74 between mile markers 125 and 140, and Interstate 55 between mile markers 155 and 167.
What You Should Do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Be aware of your surroundings and do not drive on flooded roads.
Expected Conditions
Between 2 and 3 inches of rain have fallen, with additional rainfall amounts up to 2 inches possible. Flash flooding is ongoing, with life-threatening flash flooding of creeks and streams, urban areas, highways, streets, and underpasses.
Timeline
The warning is effective immediately from 2:36 AM CDT until 8:30 AM CDT on August 15, 2026.
Original source: NOAA Official Notice ↗
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