


Hazardous Weather Outlook
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
271 FLUS43 KLOT 162044 HWOLOT Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 344 PM CDT Thu Oct 16 2025 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-172045- 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- 344 PM CDT Thu Oct 16 2025 /444 PM EDT Thu Oct 16 2025/ This Hazardous Weather Outlook is for portions of north central Illinois...northeast Illinois and northwest Indiana. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Friday night... Limited Thunderstorm Risk. Saturday... Limited Thunderstorm Risk...with an associated: Level 1 of 5 Severe Thunderstorm Risk. DISCUSSION... A storm system is expected to move through the area Friday night through Sunday morning bringing periods of showers and a few thunderstorms. A few stronger storms are possible on Saturday mainly south and east of the Kankakee River Valley. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be necessary through tonight. $$ LMZ740>745-172045- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 344 PM CDT Thu Oct 16 2025 This Hazardous Weather Outlook is for portions of the Illinois nearshore waters of Lake Michigan and the Indiana nearshore waters of Lake Michigan. .DAY ONE...Tonight. Weather hazards expected... Hazardous conditions for small craft. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Friday night and Saturday... Hazardous conditions for small craft are likely. Limited Thunderstorm Risk. Sunday... Gale force winds and very hazardous waves are possible. Monday through Wednesday... Hazardous conditions for small craft are likely. $$ Yack Visit us at www.weather.gov/chicago