


Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
525 FZUS53 KLOT 111413 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 913 AM CDT Tue Mar 11 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. LMZ740-741-112130- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- 913 AM CDT Tue Mar 11 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING... .REST OF TODAY...North winds to 30 kt with a brief period of gales to nearly 40 knots this morning with a cold front. Partly cloudy late in the morning then clearing. Waves 4 to 6 ft occasionally to 8 ft building to 5 to 8 ft occasionally to 10 ft. .TONIGHT...North winds 15 to 25 kt becoming east 10 to 20 kt after midnight. Mostly clear. Waves 5 to 8 ft occasionally to 10 ft subsiding to 3 to 6 ft occasionally to 8 ft. .WEDNESDAY...East winds 10 to 20 kt becoming northeast 5 to 10 kt in the afternoon. Partly cloudy. Waves 3 to 6 ft occasionally to 8 ft subsiding to 1 to 3 ft. .WEDNESDAY NIGHT...Northeast winds around 10 kt. Partly cloudy in the evening then clearing. Waves 1 to 2 ft. $$ LMZ742>745-112130- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 913 AM CDT Tue Mar 11 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .REST OF TODAY...Northwest winds increasing sharply to 30 kt with a brief period of gales to 35 kt this morning, then becoming north and diminishing to 20 to 25 kt in the afternoon. Partly cloudy late in the morning then clearing. Waves 3 to 5 ft building quickly to 6 to 9 ft occasionally to 12 ft. .TONIGHT...North winds 15 to 25 kt becoming east and diminishing to 10 to 15 kt late. Mostly clear. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft late. .WEDNESDAY...East winds 10 to 15 kt becoming northeast 5 to 10 kt in the afternoon. Partly cloudy. Waves 2 to 4 ft subsiding to 1 to 3 ft. .WEDNESDAY NIGHT...Northeast winds 5 to 10 kt. Partly cloudy in the evening then clearing. Waves 1 to 2 ft. $$ Carlaw