Flood Warning Issued for Little Calumet River in Cook IL and Lake IN
This alert is no longer in effect.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 the Little Calumet River affecting Cook County IL and Lake County IN until June 12 at 7:00PM CDT.
Read this weather record in 30 seconds
- Record type
- Flood Warning
- Affected area
- Cook County IL and Lake County IN
- 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 Cook County IL and Lake County IN.
Alert Details
A Flood Warning has been issued by the National Weather Service Chicago IL. The alert is effective from June 11 at 9:44PM CDT and remains in effect until June 12 at 7:00PM CDT.
Affected Areas
The warning covers Cook County, IL and Lake County, IN. It specifically includes the Little Calumet River from IN-912 in Hammond downstream to the confluence with Thorn Creek in South Holland, including the Munster (Hohman Avenue) gauge.
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 9:00 PM CDT Thursday the stage was 10.7 feet. The river is expected to rise above flood stage (12.0 feet) late this evening to a crest near 13.0 feet late tonight. At 12.5 feet, most areas outside of the levee-protected area are inundated in Hammond and Munster.
Timeline
The alert is effective from June 11 at 9:44PM CDT with onset at 11:00PM CDT. It expires June 12 at 3:45PM CDT and ends June 12 at 7:00PM CDT.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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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.
Similar body length
Nearest notices by article body length (1,157 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to July 8, 2026.
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