Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
242 FZUS53 KLOT 161550 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 950 AM 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>743-162230- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 950 AM CST Sun Nov 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TODAY...Northwest winds 20 to 25 kt. Sunny. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. .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. .MONDAY...Northwest winds 10 to 15 kt becoming variable around 5 kt in the afternoon. Sunny in the morning, then becoming partly cloudy. Waves 2 to 4 ft subsiding to 1 to 3 ft. .MONDAY NIGHT...Southeast winds 5 to 10 kt increasing to 10 to 20 kt towards daybreak. Chance of rain in the evening, then rain likely overnight. Waves 1 to 3 ft. $$ LMZ744-745-162230- Gary to Burns Harbor IN-Burns Harbor to Michigan City IN- 950 AM CST Sun Nov 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .REST OF TODAY...Northwest winds to 30 kt. Sunny. Waves 7 to 10 ft occasionally to 13 ft subsiding to 5 to 8 ft occasionally to 10 ft. .TONIGHT...Northwest winds to 30 kt diminishing to 15 to 20 kt late. Clear. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft occasionally to 9 ft. .MONDAY...Northwest winds 10 to 20 kt diminishing to 5 to 10 kt and then becoming northeast late. Sunny in the morning, then becoming partly cloudy. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. .MONDAY NIGHT...East winds 5 to 10 kt becoming southeast 10 to 15 kt late. Slight chance of rain in the evening, then rain likely overnight. Waves 1 to 3 ft. $$ RC