FZUS53 KMKX 200810 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 310 AM CDT Fri Mar 20 2026 For waters within five nautical miles of shore on Lake Michigan LMZ643-202100- Sheboygan to Port Washington WI- 310 AM CDT Fri Mar 20 2026 .EARLY THIS MORNING...Southwest wind 10 to 15 knots becoming 10 to 20 knots early in the morning. Mostly cloudy. Waves 1 to 2 feet. .TODAY...West wind 15 to 20 knots becoming northwest 10 to 15 knots late in the morning, then veering north early in the afternoon becoming north 10 to 15 knots late in the afternoon. Mostly cloudy. Waves 1 to 2 feet. .TONIGHT...North wind 5 to 10 knots veering east after midnight, then veering south early in the morning. Mostly cloudy. Waves around 1 foot. .SATURDAY...South wind 5 to 10 knots rising to 10 to 15 knots late in the morning, then becoming south 10 to 15 knots in the afternoon. Partly sunny. Waves 1 to 2 feet building to 2 to 4 feet late in the afternoon. .SATURDAY NIGHT...South wind 10 to 15 knots veering southwest late in the evening, then veering west after midnight becoming north 15 to 20 knots early in the morning. Slight chance of rain after midnight. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. $$ LMZ644-202100- Port Washington to North Point Light WI- 310 AM CDT Fri Mar 20 2026 .EARLY THIS MORNING...Southwest wind 5 to 10 knots rising to 10 to 20 knots early in the morning. Mostly cloudy. Waves 1 to 2 feet. .TODAY...West wind 15 to 20 knots becoming northwest 10 to 15 knots late in the morning, then veering north early in the afternoon becoming north 10 to 15 knots late in the afternoon. Mostly cloudy. Waves 1 to 2 feet. .TONIGHT...North wind 5 to 10 knots veering southeast early in the morning. Mostly cloudy. Waves around 1 foot. .SATURDAY...Southeast wind 5 to 10 knots rising to 10 to 15 knots late in the morning, then veering south early in the afternoon becoming south 10 to 15 knots late in the afternoon. Partly sunny. Waves 1 to 2 feet. .SATURDAY NIGHT...South wind 10 to 15 knots veering southwest late in the evening, then veering west after midnight becoming north 15 to 20 knots early in the morning. Slight chance of rain after midnight. Waves 1 to 2 feet. $$ LMZ645-202100- North Point Light to Wind Point WI- 310 AM CDT Fri Mar 20 2026 .EARLY THIS MORNING...Southwest wind 5 to 10 knots rising to 10 to 20 knots early in the morning. Mostly cloudy. Waves 1 to 2 feet. .TODAY...West wind 15 to 20 knots becoming northwest 10 to 15 knots late in the morning, then veering north early in the afternoon becoming north 10 to 15 knots late in the afternoon. Mostly cloudy. Waves 1 to 2 feet. .TONIGHT...North wind 5 to 10 knots veering northeast late in the evening, then becoming northeast 5 to 10 knots after midnight veering southeast early in the morning. Mostly cloudy. Waves around 1 foot. .SATURDAY...Southeast wind 5 to 10 knots rising to 10 to 15 knots late in the morning, then veering south early in the afternoon becoming south 10 to 15 knots late in the afternoon. Partly sunny. Waves 1 to 2 feet. .SATURDAY NIGHT...South wind 10 to 15 knots veering southwest late in the evening, then becoming southwest 10 to 15 knots after midnight becoming northwest 15 to 20 knots early in the morning. Slight chance of rain after midnight. Waves 1 to 2 feet. $$ LMZ646-202100- Wind Point WI to Winthrop Harbor IL- 310 AM CDT Fri Mar 20 2026 .EARLY THIS MORNING...Northwest wind 5 knots becoming west 5 to 15 knots early in the morning. Mostly cloudy. Waves 1 to 2 feet. .TODAY...West wind 10 to 15 knots veering north late in the afternoon. Partly sunny. Waves 1 to 2 feet. .TONIGHT...North wind 5 to 10 knots veering east early in the morning. Mostly cloudy. Waves around 1 foot. .SATURDAY...Southeast wind 5 to 10 knots rising to 10 to 15 knots late in the morning, then veering south early in the afternoon becoming south 10 to 15 knots late in the afternoon. Partly sunny. Waves 1 to 2 feet. .SATURDAY NIGHT...South wind 10 to 15 knots veering west early in the morning. Slight chance of rain after midnight. Waves 1 to 2 feet. $$ See Lake Michigan Open Waters Forecast for Sunday through Tuesday.