Flood Warning Issued for Rock River Areas in Illinois

Source: NOAA · Henry, Rock Island, and Whiteside Counties, IL

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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 the Rock River near Joslin affecting Henry, Rock Island, and Whiteside Counties in Illinois from late Friday night to Monday afternoon.

What this NWS weather alert tells you, and what most readers miss

This notice was issued by NOAA on July 5, 2026 and geographically references Henry, Rock Island, and Whiteside Counties, IL. Its severity classification of "high" signals how the issuing agency weighs the risk of harm if no action is taken - "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to - Weather Alerts - determines the regulatory framework behind it, which shapes what remedies (refunds, replacements, recalls, evacuations) are available to affected individuals and who holds statutory responsibility for enforcement.

Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to read it as a data point about the issuing system: how quickly NOAA detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action, a single localized NWS weather alert is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.

For decision-making, Areazine pairs each alert with the original agency URL, the full agency name, and a timestamp so you can verify the notice against the primary source before acting on it. Tags on this item (weather, alert, Flood Warning, Illinois) map to related alerts in the same area of risk - browsing them together gives a clearer picture than any single notice alone, because the shape of an ongoing issue only becomes visible across multiple sequential alerts.

Alert Details

Flood Warning issued by NWS Quad Cities IA IL. Effective from June 10 at 9:44PM CDT, with onset late Friday night and in effect until June 15 at 3:00PM CDT.

Affected Areas

Henry IL, Whiteside and Rock Island Counties. Rock River near Joslin and Rock River at Moline.

What You Should Do

Turn around, don't drown when encountering flooded roads. Motorists should not attempt to drive around barricades or drive cars through flooded areas.

Expected Conditions

Minor flooding is forecast. At 13.0 feet, flooding of unprotected agricultural land occurs and water affects Lundeens Landing Campground. River expected to crest at 12.9 feet.

Timeline

From late Friday night to Monday afternoon. River rises above flood stage early Saturday morning, crests Saturday evening, and falls below flood stage Monday morning. Flood stage is 12.0 feet.

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?
A Flood Warning is in effect for the Rock River near Joslin affecting Henry, Rock Island, and Whiteside Counties in Illinois from late Friday night to Monday 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, Rock Island, and Whiteside Counties, IL. 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.