Flash Flood Warning Issued for Southern Henry County, Illinois Through Early Wednesday
This alert is no longer in effect.
NOAA issued it on April 6, 2026, 4 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.
The National Weather Service has issued a Flash Flood Warning for southern Henry County as thunderstorms produce heavy rain, creating immediate flooding risks for roads and low-lying areas.
Read this weather record in 30 seconds
- Record type
- Flash Flood Warning
- Affected area
- Northwestern Illinois
- Issued
- April 6, 2026
- Issuing authority
- NWS Quad Cities
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 months ago; use the issuing agency's live warning service for current conditions in Northwestern Illinois.
Alert Details
The National Weather Service in Quad Cities has issued a Flash Flood Warning for southern Henry County in northwestern Illinois. The warning was issued at 9:11 PM CDT on March 10 and remains in effect until 2:00 AM CDT on March 11, 2026.
Affected Areas
The warning specifically impacts southern Henry County. Locations expected to experience flash flooding include:
- Kewanee
- Cambridge
- Alpha
- Andover
- Lynn Center
- Bishop Hill
- Ulah
- Henry County Fairgrounds
- German Corner
- Ophiem
- Johnson-Sauk Trail State Park
This warning also includes Interstate 74 in Illinois between mile markers 22 and 31.
What You Should Do
Residents and motorists are urged to "Turn around, don't drown" when encountering flooded roads. Most flood-related deaths occur in vehicles. Avoid driving through water-covered roadways and stay away from small creeks and streams that may rise rapidly.
Expected Conditions
At 9:11 PM CDT, Doppler radar indicated thunderstorms producing heavy rainfall at a rate of 1 to 2 inches per hour across the warned area. Flash flooding is currently ongoing or expected to begin shortly. Primary hazards include the flooding of small creeks and streams, urban areas, highways, streets, and underpasses, as well as other poor drainage and low-lying areas.
Timeline
The Flash Flood Warning was issued at 9:11 PM CDT on Tuesday, March 10, and is scheduled to expire at 2:00 AM CDT on Wednesday, March 11.
Original source: NOAA Official Notice ↗
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