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Tornado sirens sound in false alarm across Chicago suburbs overnight

Officials said DuComm accidentally activated the sirens during system testing, and the National Weather Service reported no severe weather threat.

Summary by WFLD
Tornado sirens woke people across parts of the Chicago suburbs early this morning, but there was no severe weather threat.

3 Articles

Chicago TribuneChicago Tribune
Center

Tornado sirens accidentally set off overnight in DuPage County

Residents in DuPage County were awakened by tornado sirens early Tuesday morning that were activated accidentally, officials said.

·Chicago, United States
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WFLDWFLD
Center

Tornado sirens sound in false alarm across Chicago suburbs overnight

Tornado sirens woke people across parts of the Chicago suburbs early this morning, but there was no severe weather threat.

·Chicago, United States
Read Full Article
NBC ChicagoNBC Chicago
Center

Did you hear that? Suburban Chicago tornado sirens 'accidentally' go off in middle of night

The 3 a.m. sirens were heard across DuPage County, including in Darien, Glen Ellyn, Villa Park, Downers Grove and more.

·Chicago, United States
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NBC Chicago broke the news in Chicago, United States on Tuesday, August 18, 2026.
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