


Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
936 FZUS53 KLOT 140822 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 322 AM CDT Mon Jul 14 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>742-141515- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 322 AM CDT Mon Jul 14 2025 .TODAY...West winds less than 10 kt becoming east 5 to 10 kt this afternoon. Sunny. Waves around 1 ft. .TONIGHT...Southeast winds around 5 kt becoming south overnight. Clear. Waves around 1 ft. .TUESDAY...South winds 5 to 10 kt becoming southeast in the afternoon. Mostly sunny. Waves 1 ft or less. .TUESDAY NIGHT...Southeast winds 5 to 10 kt becoming south overnight. Partly cloudy. Waves 1 ft or less. $$ LMZ743>745-141515- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 322 AM CDT Mon Jul 14 2025 .TODAY...Light and variable winds becoming northeast 5 to 10 kt this afternoon. Sunny. Waves 1 ft or less. .TONIGHT...East winds around 5 kt becoming southeast overnight. Clear. Waves 1 ft or less. .TUESDAY...South winds 5 to 10 kt becoming northeast in the afternoon. Mostly sunny. Waves 1 ft or less. .TUESDAY NIGHT...East winds 5 to 10 kt becoming south overnight. Slight chance of showers overnight. Waves 1 ft or less. $$ - Izzi