FZUS53 KMKX 120110 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 710 PM CST Thu Dec 11 2025 For waters within five nautical miles of shore on Lake Michigan LMZ643-120500- Sheboygan to Port Washington WI- 710 PM CST Thu Dec 11 2025 .TONIGHT...Northwest wind 5 to 10 knots easing to 5 knots late in the evening, then becoming northwest 5 knots after midnight rising to 5 to 10 knots early in the morning. Mostly cloudy. Waves around 1 foot. .FRIDAY...Northwest wind 5 to 10 knots backing west late in the morning, then rising to 10 to 15 knots early in the afternoon rising to 15 to 20 knots late in the afternoon. Chance of snow in the afternoon. Waves around 1 foot. .FRIDAY NIGHT...West wind 15 to 25 knots rising to up to 30 knots late in the evening, then rising to gales to 35 knots after midnight. Slight chance of snow through around midnight. Waves 3 to 5 feet. A gale warning may be needed. .SATURDAY...West wind up to 30 knots. Partly sunny. Waves 3 to 5 feet subsiding to 3 to 4 feet in the late morning and afternoon. A small craft advisory may be needed. Wave heights are for ice free areas. $$ LMZ644-120500- Port Washington to North Point Light WI- 710 PM CST Thu Dec 11 2025 .TONIGHT...Northwest wind 5 to 10 knots easing to 5 knots in the late evening and early morning, then rising to 5 to 10 knots early in the morning. Mostly cloudy. Waves nearly calm. .FRIDAY...Northwest wind 5 to 10 knots backing west late in the morning, then rising to 10 to 15 knots early in the afternoon becoming 10 to 20 knots late in the afternoon. Slight chance of snow in the morning, then chance of snow in the afternoon. Waves around 1 foot. .FRIDAY NIGHT...West wind 15 to 25 knots rising to up to 30 knots late in the evening, then veering northwest after midnight. Slight chance of snow through around midnight. Waves 3 to 4 feet building to 3 to 5 feet after midnight. A small craft advisory may be needed. .SATURDAY...Northwest wind up to 30 knots backing west in the afternoon. Slight chance of snow in the afternoon. Waves 3 to 5 feet subsiding to 3 to 4 feet in the late morning and early afternoon, then building to 3 to 5 feet late in the afternoon. Wave heights are for ice free areas. $$ LMZ645-120500- North Point Light to Wind Point WI- 710 PM CST Thu Dec 11 2025 .TONIGHT...Northwest wind 5 knots rising to 5 to 10 knots after midnight. Mostly cloudy. Waves around 1 foot. .FRIDAY...Northwest wind 5 to 10 knots backing west late in the morning, then rising to 10 to 15 knots early in the afternoon becoming 10 to 20 knots late in the afternoon. Slight chance of snow in the morning, then chance of snow in the afternoon. Waves around 1 foot. .FRIDAY NIGHT...West wind 15 to 25 knots rising to up to 30 knots late in the evening, then veering northwest after midnight becoming northwest up to 30 knots early in the morning. Chance of snow through around midnight. Waves 3 to 4 feet building to 3 to 5 feet after midnight. A small craft advisory may be needed. .SATURDAY...Northwest wind up to 30 knots easing to 15 to 25 knots late in the morning, then backing west early in the afternoon becoming northwest up to 30 knots late in the afternoon. Slight chance of snow in the afternoon. Waves 3 to 5 feet subsiding to 3 to 4 feet in the late morning and early afternoon, then building to 3 to 5 feet late in the afternoon. Wave heights are for ice free areas. $$ LMZ646-120500- Wind Point WI to Winthrop Harbor IL- 710 PM CST Thu Dec 11 2025 .TONIGHT...Northwest wind 5 knots rising to 5 to 10 knots after midnight. Mostly cloudy. Waves nearly calm. .FRIDAY...Northwest wind 5 to 10 knots backing west late in the morning, then rising to 10 to 15 knots early in the afternoon becoming 10 to 20 knots late in the afternoon. Slight chance of snow in the morning, then chance of snow in the afternoon. Waves around 1 foot. .FRIDAY NIGHT...West wind 15 to 20 knots becoming 15 to 25 knots late in the evening, then becoming northwest up to 30 knots after midnight. Chance of snow through around midnight. Waves 3 to 4 feet building to 3 to 5 feet early in the morning. A small craft advisory may be needed. .SATURDAY...Northwest wind up to 30 knots easing to 15 to 25 knots late in the morning, then backing west in the afternoon. Slight chance of snow in the morning, then chance of snow in the afternoon. Waves 3 to 4 feet. Wave heights are for ice free areas. $$ See Lake Michigan Open Waters Forecast for Sunday through Tuesday.