A storm system will continue to produce widespread showers and thunderstorms as it progresses eastward across the central U.S. into the Northeast through the weekend. There are risks of severe thunderstorms and excessive rainfall on Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. Read More >
![]() KZZ-81 Lockport, 162.425 MHz NOAA All Hazards Weather Radio station, KZZ-81 serves portions of northeast Illinois and northwest Indiana including the Chicago Metropolitan Area, from a 1000 Watt transmitter in Lockport, IL. 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 in southwest suburban Romeoville. 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 KZZ-81 occur each WEDNESDAY at approximately 11 AM.
Broadcast Cycle
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