Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. 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.

County

Lake (IL)

Kane

Cook

DuPage

Kendall

Will

Grundy

Kankakee

Lake (IN)

SAME code

017097
017089
017031
017043
017093
017197
017063
017091
018089

Signal coverage area map

Broadcast Cycle

Station ID Message
Regional Weather Synopsis	updated around 430 AM and 430 PM, or as needed
Hourly Temperature Roundup	updated between 5 and 10 min past the hour
Short Term Forecast	only when precipitation or active weather is near Chicagoland
Chicago Metro Forecast	updated 4 AM and 4 PM, or as needed
Chicago Climate Summary	6 AM to 10 AM and 430 PM to 7 PM
Severe Weather and other special programming during "active" weather

LOT RSS Feed

Dangerous Heat and Heavy Rainfall into the Weekend

NOAA All Hazards Weather Radio KZZ-81