Flood Warning Issued for Iroquois County, IL

Source: NOAA · Iroquois County, IL

This alert is no longer in effect.

NOAA issued it on July 8, 2026, 6 weeks 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.

NWS Chicago has issued a Flood Warning for Sugar Creek affecting Iroquois County with minor flooding forecast from late tonight through Sunday morning.

Read this weather record in 30 seconds

Record type
Flood Warning
Affected area
Iroquois County, IL
Issued
July 8, 2026
Issuing authority
NWS Chicago 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 6 weeks ago; use the issuing agency's live warning service for current conditions in Iroquois County, IL.

Alert Details

Flood Warning issued by NWS Chicago IL. Effective from June 11 at 4:37PM CDT. Onset June 12 at 4:20AM CDT. Expires June 12 at 10:45AM CDT. Ends June 14 at 7:00AM CDT.

Affected Areas

Sugar Creek from near Milford downstream to confluence with Iroquois River at Watseka, including the Milford gauge in Iroquois County, IL. Additional rivers mentioned include Vermilion River near Leonore (La Salle County) and Illinois River at La Salle (Putnam, Bureau and La Salle Counties).

What You Should Do

A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property.

Expected Conditions

Minor flooding is forecast. At 4:00 PM CDT Thursday the stage was 14.1 feet. The river is expected to rise above flood stage late tonight and continue rising to a crest of 19.6 feet early Saturday morning. Flood stage is 18.0 feet. At 19.0 feet, structures threatened in southwest Milford.

Timeline

From late tonight (June 12 at 4:20AM CDT) to Sunday morning (June 14 at 7:00AM CDT).

Original source: NOAA Official Notice ↗

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Nationwide notices with similar length or severity timing 8

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.

Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
NWS Chicago has issued a Flood Warning for Sugar Creek affecting Iroquois County with minor flooding forecast from late tonight through Sunday morning.
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 Iroquois County, 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.