277 FLUS43 KLOT 280331 HWOLOT Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 931 PM CST Tue Jan 27 2026 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-290345- 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- 931 PM CST Tue Jan 27 2026 /1031 PM EST Tue Jan 27 2026/ This Hazardous Weather Outlook is for portions of north central Illinois...northeast Illinois and northwest Indiana. .DAY ONE...Tonight. Weather hazards expected... Limited Excessive Cold Risk. DISCUSSION... Wind chills 10 below to 20 below zero are expected tonight. Extensive ice cover on area rivers may cause localized ice jam flooding. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Wednesday and Thursday... Limited Excessive Cold Risk. Friday and Saturday... Limited Excessive Cold Risk. Elevated Snow Risk Near Lake Michigan. DISCUSSION... Accumulating lake effect snow is possible near Lake Michigan Thursday night through Saturday night. However, considerable uncertainty regarding timing, intensity, and the placement of the heaviest lake effect snow exists at this time. Extensive ice cover on area rivers may cause localized ice jam flooding. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be necessary through tonight. $$ LMZ740>745-290345- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 931 PM CST Tue Jan 27 2026 This Hazardous Weather Outlook is for portions of the Illinois nearshore waters of Lake Michigan and the Indiana nearshore waters of Lake Michigan. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Thursday through Saturday... Hazardous conditions for small craft are likely. $$ Kluber Visit us at www.weather.gov/chicago