Expires:202507170915;;571887 FZUS53 KLOT 170238 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 938 PM CDT Wed Jul 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>743-170915- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 938 PM CDT Wed Jul 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM CDT THURSDAY THROUGH LATE THURSDAY NIGHT... .REST OF TONIGHT...West winds 15 to 25 kt late this evening becoming northwest 15 to 20 kt after midnight. Mostly cloudy. Waves 1 to 2 ft building to 3 to 5 ft. .THURSDAY...Northwest winds 15 to 20 kt becoming north and increasing to 15 to 25 kt in the afternoon. Mostly cloudy. Waves building to 3 to 6 ft occasionally to 8 ft. .THURSDAY NIGHT...North winds 15 to 25 kt becoming northeast 10 to 20 kt. Mostly cloudy in the evening, then becoming partly cloudy. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft late. .FRIDAY...Northeast winds 10 to 15 kt becoming east around 10 kt. Mostly sunny in the morning, then becoming partly cloudy. Waves 2 to 4 ft subsiding to 1 to 3 ft. $$