NOAA All Hazards Weather Radio station KZZ-55 serves Northwest and North Central Illinois, from a 300 Watt transmitter in Dixon, Illinois. The nominal effective range of the transmitter is about 40 miles. Continuous 24 hour programming is provided from the National Weather Service Chicago Forecast Office, located southwest of Chicago in Romeoville Illinois.

A map of the listening area is shown below, with Specific Area Message Encoder codes shown for each county. Severe weather watches and warnings are tone-alerted for all counties shaded in blue. Tone alarm tests for the Dixon radio occur eachWEDNESDAY at approximately 11 AM.

Broadcast Cycle