FLUS43 KLOT 152026 HWOLOT Hazardous Weather Outlook National Weather Service Chicago IL 326 PM CDT Thu Oct 15 2026 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-162030- 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- 326 PM CDT Thu Oct 15 2026 /426 PM EDT Thu Oct 15 2026/ This Hazardous Weather Outlook is for portions of central Illinois, east central Illinois, north central Illinois, northeast Illinois, and northwest Indiana. .DAY ONE...Tonight Weather hazards expected... Limited Thunderstorm Risk. DISCUSSION... A few thunderstorms may develop between 5 and 9 PM near and east of the Interstate 55 corridor. There is a non-zero but very low (less than 5 percent) chance for severe weather. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Friday... Limited Thunderstorm Risk near Lake Michigan. Friday night into Saturday morning... Significant Frost and Limited Freeze Risk mainly in Illinois. Saturday night into Friday morning... Limited Frost risk mainly east of Interstate 55. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time. GENERAL STORM MOTION OF THE DAY: Moving toward the east at 55 mph. $$ LMZ740>745-162030- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 326 PM CDT Thu Oct 15 2026 This Hazardous Weather Outlook is for portions of Lake Michigan. .DAY ONE...Tonight Weather hazards expected... Hazardous conditions for small craft are likely. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Friday... Gale force winds and very hazardous waves are expected. Limited Thunderstorm and Waterspout Risk. Saturday and Sunday... Hazardous conditions for small craft are likely. $$