Expires:202404241600;;280631 FZUS53 KLOT 240754 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 254 AM CDT Wed Apr 24 2024 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>742-241600- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 254 AM CDT Wed Apr 24 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...North winds to 30 kt diminishing to 15 to 20 kt. Mostly cloudy in the morning then clearing. Waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to 7 ft occasionally to 9 ft. .TONIGHT...Northeast winds 10 to 15 kt diminishing to around 5 kt overnight. Mostly clear. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. .THURSDAY...Southeast winds 5 to 10 kt becoming east and increasing to 10 to 20 kt in the afternoon. Mostly sunny. Waves 1 to 3 ft. .THURSDAY NIGHT...East winds 10 to 15 kt becoming southeast 15 to 20 kt overnight. Mostly clear in the evening, then becoming partly cloudy. Waves 1 to 2 ft building to 2 to 4 ft. $$