Officials in Highland, Indiana, said two tornado sirens were found to be malfunctioning ... while four others touched down in the Chicago suburbs – three in Will County and one in Cook County ...

The town of Highland in Northwest Indiana was still cleaning up Monday from the damage wrought by a tornado ... Chicago that residents alerted emergency management that they heard faint siren ...

A line of severe storms triggered tornado warnings for parts of the area late Wednesday, and brought dangerous wind, hail and blinding downpours to the entire Chicago area. As of Wednesday night, ...

The state uses a single alert siren to signify an emergency alert, such as a severe storm or tornado warning. An audio sample of this siren is available on the Illinois Emergency Management Agency ...

Eerie sirens warned Chicago residents as multiple tornadoes swept thought the area, destroying homes and cars. The tornadoes grounded hundreds of flights at Chicago O'Hare International Airport ...