Yes. The citywide tornado sirens went off about quarter to one o'clock, local time, and kept going for about forty minutes.
We spent the time in the basement.
All we got was rain, torrential rain, black-and-green skies, and hours of severe winds. The winds have kept gusting, although it's much clearer now. We even had sun for a bit.
I hear they had to clear Soldier Field during the (American) football game, but that the game went on after the storm passed.
The National Weather Service says ten tornadoes touched down in Illinois, including some in the south suburbs of Chicago.
Indiana and Kentucky have also been clobbered by the same system.