


Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
853 FZUS53 KLOT 150238 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 938 PM CDT Tue Oct 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>742-150930- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 938 PM CDT Tue Oct 14 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON... .REST OF TONIGHT...Northeast winds 15 to 25 kt. Isolated showers late in the evening, then scattered showers after midnight. Waves 4 to 7 ft occasionally to 9 ft. .WEDNESDAY...East winds 15 to 20 kt easing to 10 to 15 kt in the afternoon. Scattered showers in the morning. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. .WEDNESDAY NIGHT...East winds 10 to 15 kt. Partly cloudy. Waves 1 to 3 ft. .THURSDAY...Southeast winds 10 to 15 kt. Partly cloudy in the morning then clearing. Waves 1 to 3 ft. $$ LMZ743>745-150930- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 938 PM CDT Tue Oct 14 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT WEDNESDAY... .REST OF TONIGHT...Northeast winds 10 to 20 kt. Scattered showers after midnight. Waves 3 to 6 ft occasionally to 8 ft. .WEDNESDAY...East winds 10 to 15 kt becoming northeast in the afternoon. Scattered showers in the morning. Waves 3 to 5 ft subsiding to 2 to 4 ft. .WEDNESDAY NIGHT...Northeast winds 10 to 15 kt becoming east overnight. Partly cloudy. Waves 1 to 3 ft. .THURSDAY...Southeast winds around 10 kt. Mostly sunny. Waves 1 to 2 ft. $$ Ogorek