Hazardous Weather Outlook
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
649 FLUS43 KLOT 040859 HWOLOT Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 359 AM CDT Mon Aug 4 2025 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-050900- 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- 359 AM CDT Mon Aug 4 2025 /459 AM EDT Mon Aug 4 2025/ This Hazardous Weather Outlook is for portions of north central Illinois...northeast Illinois and northwest Indiana. .DAY ONE...Today and Tonight. Weather hazards expected... Limited Thunderstorm Risk in the afternoon. DISCUSSION... There is a 20 percent chance of showers and thunderstorms this afternoon, mainly south of a Streator, Illinois to Fowler, Indiana line. Severe weather is not expected. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Tuesday... Limited Thunderstorm Risk. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be necessary through tonight. GENERAL STORM MOTION OF THE DAY: Moving toward the northwest at 15 to 20 mph. $$ LMZ740>745-050900- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 359 AM CDT Mon Aug 4 2025 This Hazardous Weather Outlook is for portions of the Illinois nearshore waters of Lake Michigan and the Indiana nearshore waters of Lake Michigan. .DAY ONE...Today and Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Tuesday... Limited Thunderstorm Risk. $$ DK Visit us at www.weather.gov/chicago