National Weather Service United States Department of Commerce

 

The Chicago NOAA Weather Radio Transmitter, KWO-39 which broadcasts on a frequency of 162.55 MHz atop the Willis Tower is off the air. 
We unfortunately do not have an estimate on a restoration time.

Also the Crescent City, IL Weather Radio Transmitter, KXI-86 broadcasting on a frequency of 162.500 MHz is down. Technicians have been contacted.

A list of other transmitters that cover your local area can be found here: https://www.weather.gov/lot/nwr