


Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
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825 FZUS53 KLOT 162024 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 324 PM CDT Fri May 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>743-170345- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 324 PM CDT Fri May 16 2025 ...GALE WARNING IN EFFECT UNTIL 10 PM CDT THIS EVENING... .TONIGHT...West gales to 35 kt diminishing to west winds to 30 kt. Scattered showers and thunderstorms in the evening. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. .SATURDAY...West winds to 30 kt diminishing to 20 to 25 kt. Mostly cloudy. Waves 2 to 4 ft. .SATURDAY NIGHT...West winds 10 to 20 kt becoming northwest 10 to 15 kt. Mostly clear. Waves 1 to 3 ft. .SUNDAY...North winds 10 to 15 kt becoming northeast in the afternoon. Partly cloudy in the morning then clearing. Waves around 1 ft building to 1 to 3 ft. $$ LMZ744-745-170345- Gary to Burns Harbor IN-Burns Harbor to Michigan City IN- 324 PM CDT Fri May 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... .TONIGHT...Southwest winds to 30 kt becoming west and diminishing to 15 to 25 kt. Numerous showers and thunderstorms in the evening. Waves 2 to 4 ft. .SATURDAY...West winds 15 to 25 kt. Mostly cloudy in the morning, then becoming partly cloudy. Waves 3 to 5 ft. .SATURDAY NIGHT...West winds 10 to 20 kt becoming northwest 10 to 15 kt. Mostly clear. Waves 2 to 4 ft subsiding to 1 to 3 ft. .SUNDAY...Northwest winds 10 to 15 kt becoming north in the afternoon. Partly cloudy in the morning then clearing. Waves 1 to 3 ft. $$ - Izzi