FZUS53 KLOT 120445 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 1045 PM CST Thu Dec 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>743-121015- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 1045 PM CST Thu Dec 11 2025 .REST OF TONIGHT...Variable winds at less than 10 kt. Mostly cloudy. Waves 1 to 2 ft. .FRIDAY...Variable winds less than 10 kt the morning becoming west 10 to 15 kt in the afternoon. Chance of snow showers in the afternoon. Waves 1 to 2 ft. .FRIDAY NIGHT...West winds 15 to 25 kt. Chance of snow showers in the evening. Waves 2 to 4 ft. .SATURDAY...Northwest winds 20 to 25 kt becoming west. Chance of snow. Waves 2 to 4 ft. $$ LMZ744-745-121015- Gary to Burns Harbor IN-Burns Harbor to Michigan City IN- 1045 PM CST Thu Dec 11 2025 .REST OF TONIGHT...Variable winds at less than 10 kt. Mostly cloudy. Waves 1 to 2 ft. .FRIDAY...Variable winds less than 10 kt the morning becoming southwest 10 to 15 kt in the afternoon. Chance of snow showers in the afternoon. Waves 1 to 2 ft. .FRIDAY NIGHT...West winds 15 to 25 kt increasing to 30 kt. Chance of snow showers in the evening. Freezing spray overnight. Waves 3 to 5 ft quickly building to 5 to 8 ft occasionally to 10 ft. A small craft advisory will likely be needed. .SATURDAY...Northwest winds to 30 kt becoming west. Freezing spray. Chance of snow in the afternoon. Waves 5 to 8 ft occasionally to 10 ft. A small craft advisory will likely be needed. $$ Borchardt