Flood Warning Issued for Henry and Rock Island Counties in Illinois

Source: NOAA · Henry and Rock Island Counties, Illinois

This alert is no longer in effect.

NOAA issued it on April 16, 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 Flood Warning for Henry and Rock Island Counties in Illinois, with moderate flooding expected along the Rock River starting Friday afternoon.

Read this weather record in 30 seconds

Record type
Flood Warning
Affected area
Henry and Rock Island Counties, Illinois
Issued
April 16, 2026
Issuing authority
NWS Quad Cities IA 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: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Henry and Rock Island Counties, Illinois.

Flood Warning in Illinois

Alert Details

The National Weather Service (NWS) Quad Cities IA IL has issued a Flood Warning. This alert is effective from April 16, 2026, at 10:43 AM CDT, with an onset on April 17, 2026.

Affected Areas

The warning affects Henry, IL and Rock Island, IL counties, specifically along the Rock River near Joslin, at Moline, and at Como in Whiteside County.

What You Should Do

Turn around and do not drown when encountering flooded roads. Motorists should not attempt to drive around barricades or through flooded areas.

Expected Conditions

Moderate flooding is forecast, with the Rock River at Moline expected to rise above the 12.0-foot flood stage and crest at 13.6 feet on Monday morning. At 13.2 feet, water will affect areas such as 60th Street south of John Deere Road in Moline, 56th Ave from Green Valley Park to 48th St, Canal Road in Big Island, and Smith's Island.

Timeline

The alert is effective from April 16, 2026, at 10:43 AM CDT, with onset on April 17, 2026, at 5:00 PM CDT, and it will continue until further notice. It expires on April 17, 2026, at 10:45 AM CDT, but may be extended.

Original source: NOAA Official Notice ↗

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Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
The National Weather Service has issued a Flood Warning for Henry and Rock Island Counties in Illinois, with moderate flooding expected along the Rock River starting Friday afternoon.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects Henry and Rock Island Counties, Illinois. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.