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 ...

as tornado warnings are their most frequent use. While the most famous instance was not recent, air-raid sirens have caused confusion in Chicago before. In 1959, when the White Sox won the ...

(WBBM NEWSRADIO) -- If last week’s record 11 tornadoes in the Chicago area have you wanting ... emergency radio signals -- but not the tornado sirens that got a workout last Tuesday night.

"We were just relaxing, watching TV and then all of a sudden, we could hear the tornado sirens outside sounding," said Jeff Behnke of Oshkosh. But the sound he and his family heard Saturday ...