FZUS53 KLOT 100254 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 954 PM CDT Fri May 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>742-101000- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 954 PM CDT Fri May 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH SUNDAY MORNING... .REST OF TONIGHT...South winds 5 to 10 kt becoming southwest 10 to 15 kt late. Clear. Waves around 1 ft. .SATURDAY...West winds 15 to 25 kt becoming north and increasing to 30 kt by late morning. Sunny. Waves 1 to 2 ft building quickly to 4 to 6 ft occasionally to 8 ft. .SATURDAY NIGHT...North winds to 30 kt becoming northeast and diminishing to 10 to 15 kt by daybreak. Clear. Waves 4 to 6 ft occasionally to 8 ft. .SUNDAY...East winds around 10 kt becoming northeast. Sunny. Waves 3 to 5 ft in the morning subsiding to 1 to 3 ft in the afternoon. $$ LMZ743>745-101000- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 954 PM CDT Fri May 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH SUNDAY MORNING... .REST OF TONIGHT...South winds less than 10 kt becoming southwest around 10 kt. Clear. Waves around 1 ft. .SATURDAY...Southwest winds 10 to 15 kt becoming north and increasing to 30 kt by midday. Sunny. Waves around 1 ft building quickly to 4 to 6 ft occasionally to 8 ft in the afternoon. .SATURDAY NIGHT...North winds to 30 kt becoming northeast and diminishing to 10 to 15 kt by daybreak. Clear. Waves 4 to 6 ft occasionally to 8 ft. .SUNDAY...East winds around 10 kt becoming northeast. Sunny. Waves 3 to 5 ft in the morning subsiding to 2 to 4 ft in the afternoon. $$ Carlaw