Tornadoes Threaten Chicago Region; Warnings Cover Kankakee, Bourbonnais, Bradley
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Tornadoes Threaten Chicago Region; Warnings Cover Kankakee, Bourbonnais, Bradley

11 March, 2026.USA.1 sources

Key Takeaways

  • Tornadoes threaten the Chicago region
  • Watches and warnings spread across the region Tuesday evening
  • Tornado warnings cover Kankakee, Bourbonnais and Bradley

Tornado-capable storm

The National Weather Service located "a severe thunderstorm capable of producing a tornado" near Pontiac and warned it was "moving east at 30 mph," and advised people in "Pontiac, Odell, and Cullom to seek shelter immediately."

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This storm formed part of a broader severe thunderstorm watch that spanned the Chicago region and northwest Indiana.

Kankakee warnings and hail

Localised severe thunderstorm warnings focused on Kankakee County communities, with explicit mention of very large hail.

The report said "In Kankakee County, a severe thunderstorm warning covering Kankakee, Bourbonnais, and Bradley ran until 7 p. m. CDT with apple-sized hail possible," reflecting the acute risk to those towns during the warning period.

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Hail reports and risk

The bulletin noted, "Cook County, including Chicago, and DuPage County were placed under a severe thunderstorm warning until 6: 45 p. m. CDT. Ping-pong ball-sized hail was possible, said meteorologist Mike Caplan," and that the NWS "received reports of large hail—ranging from golf balls to tennis balls—in Woodridge, Downers Grove, Darien, and Westmont."

Livingston, Will, commute

Warnings also extended west and south into Livingston, Will and southwest Cook counties where officials repeatedly upgraded hail expectations during evening commute times.

The coverage noted "Other warnings extended into Livingston County" with alerts "noting the storm was capable of baseball-sized hail," and that "In northern Will County, southwest Cook County, and a small portion of southern DuPage County, a severe thunderstorm warning remained in effect until 6 p. m. CDT, with large hail described as the primary hazard."

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Airports and sheltering

The article reported "O’Hare International Airport was under a ground stop until 7: 15 p. m. CDT due to thunderstorms. Midway International Airport was under a ground stop until 6: 30 p. m. CDT due to severe weather in the area," and that "The National Weather Service messages repeatedly emphasized sheltering, especially where rotation was indicated and where a tornado was described as on the ground."

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