NWS Chicago ILTO.W 0046June 11, 2026
Tornado Warning: Cook, IL
The National Weather Service office in Chicago issued a tornado warning for Cook in Illinois, which was in force until 8:45 p.m. local time on June 11. It was the 46th tornado warning the NWS office in Chicago issued in 2026. Illinois had 115 tornado warnings in June 2026, against 23 in an average June of 2008-2025 (Illinois's tornado warnings by year).
ExpiredWarning
In force for 28 minutes; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Chicago IL
- Area
- Cook
- State
- Illinois
- Level
- Warning
- Issued
- 8:17 p.m. CDT, June 11, 2026
- Expires
- 8:45 p.m. CDT, June 11, 2026
- CAP severity, certainty, urgency
- Extreme, Observed, Immediate
- VTEC event
- KLOT TO.W 0046
- Official source
- National Weather Service: the notice at its source
Tornado Warnings in Illinois since 2008Every warning type in Illinois
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
TORLOT The National Weather Service in Chicago has issued a * Tornado Warning for... Central and Southern Cook County in northeastern Illinois... * Until 845 PM CDT. * At 817 PM CDT, severe thunderstorms capable of producing both tornadoes and extensive straight line wind damage were located along a line extending from La Grange to Palos Hills to Orland Park, moving east at 65 mph. HAZARD...Tornado. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows, and vehicles will occur. Tree damage is likely. * These dangerous storms will be near... Chicago, Cicero, Orland Park, Tinley Park, Oak Lawn, Berwyn, Midway Airport, Austin, South Lawndale, and Roseland around 820 PM CDT. Calumet City, Bridgeport, Chicago Loop, South Shore, Dolton, Northerly Island, Near West Side, Chatham, Hyde Park, and South Holland around 825 PM CDT. Hammond around 830 PM CDT. OEMC zones...TORNADO WARNING. 5...6...7...8...9...10...11...and 12.
What the agency told people to do
TAKE COVER NOW! Move to a basement or an interior room on the lowest floor of a sturdy building. Avoid windows. If you are outdoors, in a mobile home, or in a vehicle, move to the closest substantial shelter and protect yourself from flying debris.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.