Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
325 FZUS53 KLOT 162056 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 256 PM CST Sun Nov 16 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>743-170415- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 256 PM CST Sun Nov 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CST THIS EVENING... .TONIGHT...Northwest winds 20 to 25 kt diminishing to 10 to 20 kt. Clear. Waves 3 to 5 ft subsiding to 2 to 4 ft overnight. .MONDAY...Northwest winds 10 to 15 kt becoming southeast around 5 kt. A chance of sprinkles in the afternoon. Waves 2 to 4 ft subsiding to 1 to 2 ft. .MONDAY NIGHT...Southeast winds 5 to 10 kt increasing to 10 to 20 kt overnight. Chance of rain in the evening, then rain overnight. Waves 1 to 2 ft building to 2 to 4 ft. .TUESDAY...East winds 15 to 20 kt. Rain. Waves 4 to 6 ft occasionally to 8 ft. $$ LMZ744-745-170415- Gary to Burns Harbor IN-Burns Harbor to Michigan City IN- 256 PM CST Sun Nov 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .TONIGHT...Northwest winds 20 to 25 kt diminishing to 15 to 20 kt late. Clear. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft occasionally to 9 ft. .MONDAY...Northwest winds 10 to 20 kt diminishing to 5 to 10 kt and then becoming northeast late. A chance of sprinkles in the afternoon. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. .MONDAY NIGHT...East winds 5 to 10 kt increasing to 10 to 15 kt. Chance of rain in the evening, then rain overnight. Waves 1 to 3 ft. .TUESDAY...East winds 15 to 20 kt. Rain. Waves 1 to 3 ft. $$ KJB