Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
455 FZUS53 KLOT 090827 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 327 AM CDT Thu Oct 9 2025 For waters within five nautical miles of shore on Lake Michigan Waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the waves, along with the average height of the highest 10 percent of the waves which will occasionally be encountered. LMZ740>743-091530- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 327 AM CDT Thu Oct 9 2025 .TODAY...East winds around 10 kt becoming southeast. Partly cloudy early this morning, then becoming sunny. Waves 1 to 3 ft. .TONIGHT...Southeast winds 10 to 15 kt becoming south 10 to 20 kt overnight. Mostly clear. Waves 1 to 3 ft. .FRIDAY...South winds 15 to 20 kt becoming southwest. Slight chance of showers late in the afternoon. Waves 2 to 4 ft. .FRIDAY NIGHT...Southwest winds 15 to 20 kt becoming northwest overnight. Chance of showers, mainly in the evening. Waves 2 to 4 ft. $$ LMZ744-745-091530- Gary to Burns Harbor IN-Burns Harbor to Michigan City IN- 327 AM CDT Thu Oct 9 2025 .TODAY...Southeast winds around 10 kt becoming east this afternoon. Sunny. Waves 1 to 2 ft. .TONIGHT...Southeast winds around 10 kt becoming south and increasing to 10 to 20 kt overnight. Clear. Waves 1 to 3 ft. .FRIDAY...South winds 15 to 20 kt becoming southwest in the afternoon. Slight chance of showers late in the afternoon. Waves 1 to 3 ft. .FRIDAY NIGHT...Southwest winds 15 to 20 kt becoming northwest overnight. Chance of showers, mainly in the evening. Waves 2 to 4 ft building to 3 to 5 ft. $$ - Izzi