Severe Thunderstorm Warning Issued for Cook and Lake Counties, IL
This alert is no longer in effect.
NOAA issued it on July 7, 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 Severe Thunderstorm Warning for Cook and Lake counties in northeastern Illinois until 9:00 PM CDT on June 11.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- Northeastern Illinois
- Issued
- July 7, 2026
- Issuing authority
- NWS Chicago IL
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: historical. It was issued 6 weeks ago; use the issuing agency's live warning service for current conditions in Northeastern Illinois.
Alert Details
A Severe Thunderstorm Warning (SVW) has been issued by the National Weather Service Chicago IL. The alert is effective from June 11 at 8:07 PM CDT until June 11 at 9:00 PM CDT.
Affected Areas
The warning covers Cook County and southeastern Lake County in northeastern Illinois.
What You Should Do
Remain alert for a possible tornado. Move to an interior room on the lowest floor of a building or a basement. If a tornado is spotted, go at once into the basement or a small central room in a sturdy structure.
Expected Conditions
At 8:07 PM CDT, severe thunderstorms were located along a line extending from Wheeling to near New Lenox, moving east at 45 mph. Hazards include 70 mph wind gusts capable of considerable tree damage and likely damage to mobile homes, roofs, and outbuildings. Hail up to 0.75 inches is possible. Tornadoes are possible.
Timeline
The warning is in effect until 9:00 PM CDT on June 11, 2026. Severe thunderstorms will impact areas including Chicago, Des Plaines, Orland Park, Tinley Park, and others between 8:10 PM and 8:30 PM 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 (1,091 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to July 7, 2026.
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