Tornado sirens sounded at least twice across Chicago, warning people to take cover and ringing through the city’s buildings. Lynn Becker, a longtime Chicago resident, posted video to Twitter ...

First installed in the 1950s, they were developed for Cold War air raid warnings, but in the 1970s, the sirens transitioned to outdoor warning alerts.

Warning Sirens Sound Across Chicago as Tornadoes Approach The National Weather Service said a tornado touched down near Chicago’s O’Hare International Airport on Wednesday, disrupting hundreds ...

Residents of Ionia County experienced unexpected alarm yesterday when tornado sirens erroneously rang out in the afternoon, despite the absence of any weather emergency. According to FOX17 Online ...

Tornado warnings popped off one by one through the evening and night in the Chicago area as the storm ... windows really hard like nearby, and the sirens going off in the background," continued ...

UNITED STATES: A tornado outbreak in Chicago caused numerous flights to be cancelled and hundreds of people seeking shelter at O’Hare Airport. The National Weather Service announced a tornado on the ...