3 products issued by NWS for: Grayslake IL
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 502 AM CST Fri Jan 23 2026 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-241115- Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage- La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford- Northern Cook-Central Cook-Southern Cook-Northern Will- Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton- 502 AM CST Fri Jan 23 2026 /602 AM EST Fri Jan 23 2026/ This Hazardous Weather Outlook is for portions of north central Illinois...northeast Illinois and northwest Indiana. .DAY ONE...Today and Tonight. Weather hazards expected... Significant Excessive Cold Risk. Limited Snow Risk far NE Porter County. DISCUSSION... Dangerously cold conditions will occur today, with wind chills ranging from 20 to 40 below this morning. The coldest conditions will occur north and west of I-55. Lake effect snow showers are expected across parts of far northeast Porter County which will lead to slippery conditions and reduced visibilities. Extensive ice cover on area rivers may cause localized ice jam flooding. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Saturday... Elevated Excessive Cold Risk. Elevated Snow Risk late in the afternoon and at night. Sunday... Limited Excessive Cold Risk. Elevated Snow Risk. Monday... Elevated Excessive Cold Risk in the morning. Tuesday and Wednesday... Limited Excessive Cold Risk. DISCUSSION... Bitterly cold conditions will continue through Saturday. Accumulating snow is likely late Saturday into Sunday, especially southeast of a Peru to Waukegan line. Several inches of fluffy snow will likely lead to hazardous travel conditions. Extensive ice cover on area rivers may cause localized ice jam flooding. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be necessary through tonight. $$
Cold Weather Advisory
URGENT - WEATHER MESSAGE National Weather Service Chicago IL 301 AM CST Fri Jan 23 2026 ILZ003>006-008-010>013-019>021-023-032-103-105>108-231915- /O.CON.KLOT.EC.W.0001.000000T0000Z-260123T1800Z/ /O.CON.KLOT.CW.Y.0002.260123T1800Z-260124T1500Z/ Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La Salle-Kendall-Grundy-Kankakee-Livingston-Northern Cook-Southern Cook-Northern Will-Southern Will-Eastern Will- Including the cities of Kankakee, Wheaton, Mendota, Dwight, Oregon, Palatine, Belvidere, Sycamore, Bolingbrook, Manhattan, Evanston, Ottawa, Bourbonnais, Pontiac, Buffalo Grove, Naperville, McHenry, Plano, Fairbury, Wilmington, Schaumburg, Aurora, Mundelein, Mokena, Peotone, Plainfield, Des Plaines, Yorkville, Gurnee, Bradley, Byron, Carol Stream, Morris, Crete, Coal City, Beecher, Rockford, Downers Grove, Minooka, Rochelle, Lemont, Streator, Calumet City, Orland Park, Joliet, Lombard, Oak Forest, Marseilles, Dixon, Algonquin, Northbrook, DeKalb, Waukegan, La Salle, Park Forest, Oswego, Elgin, Channahon, Woodstock, and Crystal Lake 301 AM CST Fri Jan 23 2026 ...EXTREME COLD WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY... ...COLD WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 9 AM CST SATURDAY... * WHAT...For the Extreme Cold Warning, dangerously cold wind chills of 30 to 40 below zero expected. For the Cold Weather Advisory, bitterly cold wind chills of 15 to 30 below zero expected. * WHERE...Portions of central, north central, and northeast Illinois. * WHEN...For the Extreme Cold Warning, until noon CST today. For the Cold Weather Advisory, from noon today to 9 AM CST Saturday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as few as 10 minutes. * ADDITIONAL DETAILS...Coldest wind chills are expected across interior portions of northern Illinois. PRECAUTIONARY/PREPAREDNESS ACTIONS... Limit time outdoors. If you must go outdoors, dress in multiple layers including a hat, face mask, and gloves. To prevent water pipes from freezing, wrap, drain, or allow them to drip slowly. Make frequent checks on older family, friends, and neighbors. Keep pets indoors as much as possible. Ensure portable heaters are used correctly. Do not use generators or grills inside. && $$
Extreme Cold Warning
URGENT - WEATHER MESSAGE National Weather Service Chicago IL 301 AM CST Fri Jan 23 2026 ILZ003>006-008-010>013-019>021-023-032-103-105>108-231915- /O.CON.KLOT.EC.W.0001.000000T0000Z-260123T1800Z/ /O.CON.KLOT.CW.Y.0002.260123T1800Z-260124T1500Z/ Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La Salle-Kendall-Grundy-Kankakee-Livingston-Northern Cook-Southern Cook-Northern Will-Southern Will-Eastern Will- Including the cities of Kankakee, Wheaton, Mendota, Dwight, Oregon, Palatine, Belvidere, Sycamore, Bolingbrook, Manhattan, Evanston, Ottawa, Bourbonnais, Pontiac, Buffalo Grove, Naperville, McHenry, Plano, Fairbury, Wilmington, Schaumburg, Aurora, Mundelein, Mokena, Peotone, Plainfield, Des Plaines, Yorkville, Gurnee, Bradley, Byron, Carol Stream, Morris, Crete, Coal City, Beecher, Rockford, Downers Grove, Minooka, Rochelle, Lemont, Streator, Calumet City, Orland Park, Joliet, Lombard, Oak Forest, Marseilles, Dixon, Algonquin, Northbrook, DeKalb, Waukegan, La Salle, Park Forest, Oswego, Elgin, Channahon, Woodstock, and Crystal Lake 301 AM CST Fri Jan 23 2026 ...EXTREME COLD WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY... ...COLD WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 9 AM CST SATURDAY... * WHAT...For the Extreme Cold Warning, dangerously cold wind chills of 30 to 40 below zero expected. For the Cold Weather Advisory, bitterly cold wind chills of 15 to 30 below zero expected. * WHERE...Portions of central, north central, and northeast Illinois. * WHEN...For the Extreme Cold Warning, until noon CST today. For the Cold Weather Advisory, from noon today to 9 AM CST Saturday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as few as 10 minutes. * ADDITIONAL DETAILS...Coldest wind chills are expected across interior portions of northern Illinois. PRECAUTIONARY/PREPAREDNESS ACTIONS... Limit time outdoors. If you must go outdoors, dress in multiple layers including a hat, face mask, and gloves. To prevent water pipes from freezing, wrap, drain, or allow them to drip slowly. Make frequent checks on older family, friends, and neighbors. Keep pets indoors as much as possible. Ensure portable heaters are used correctly. Do not use generators or grills inside. && $$