


Hazardous Weather Outlook
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
517 FLUS43 KLOT 241959 HWOLOT Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 259 PM CDT Sun Aug 24 2025 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-252000- 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- 259 PM CDT Sun Aug 24 2025 /359 PM EDT Sun Aug 24 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 in Northwest Indiana. DISCUSSION... Northwest winds will produce high waves and dangerous swimming conditions at Lake Michigan beaches in northwest Indiana. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Monday and Tuesday... High Swim Risk Lake Michigan Beaches in Northwest Indiana. Thursday... Limited Thunderstorm Risk. DISCUSSION... Northwest winds will continue to produce high waves and dangerous swimming conditions at Lake Michigan beaches in northwest Indiana through Tuesday afternoon. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be necessary through tonight. $$ LMZ740>745-252000- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 259 PM CDT Sun Aug 24 2025 This Hazardous Weather Outlook is for portions of the Illinois nearshore waters of Lake Michigan and the Indiana nearshore waters of Lake Michigan. .DAY ONE...Tonight. Weather hazards expected... Hazardous conditions for small craft east of Burns Harbor. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Monday... Hazardous conditions for small craft are likely east of Burns Harbor. $$ KJB Visit us at www.weather.gov/chicago