


Hazardous Weather Outlook
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
276 FLUS43 KLOT 311938 HWOLOT Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 238 PM CDT Thu Jul 31 2025 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-011945- 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- 238 PM CDT Thu Jul 31 2025 /338 PM EDT Thu Jul 31 2025/ This Hazardous Weather Outlook is for portions of north central Illinois...northeast Illinois and northwest Indiana. .DAY ONE...Tonight. Weather hazards expected... High Swim Risk Lake Michigan Beaches. DISCUSSION... Breezy northeast winds will maintain choppy waves and rip currents leading to a High Swim Risk along Lake Michigan beaches. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Friday... High Swim Risk Lake Michigan Beaches. DISCUSSION... Dangerous swimming conditions will persist through much of Friday for Lake Michigan beaches. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be necessary through tonight. $$ LMZ740>745-011945- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 238 PM CDT Thu Jul 31 2025 This Hazardous Weather Outlook is for portions of the Illinois nearshore waters of Lake Michigan and the Indiana nearshore waters of Lake Michigan. .DAY ONE...Tonight. Weather hazards expected... Hazardous conditions for small craft. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Friday morning... Hazardous conditions for small craft. $$ Kluber Visit us at www.weather.gov/chicago