FZUS53 KMKX 211610 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 1110 AM CDT Sat Mar 21 2026 For waters within five nautical miles of shore on Lake Michigan LMZ643-212200- Sheboygan to Port Washington WI- 1110 AM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... .REST OF TODAY...South wind 15 to 20 knots. Gusts up to 25 knots. Partly sunny. Waves 3 to 4 feet. .TONIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots veering west late in the evening, then veering north after midnight rising to 15 to 20 knots early in the morning. Slight chance of rain after midnight. Waves 3 to 4 feet subsiding to 1 to 2 feet after midnight, then building to 2 to 4 feet early in the morning. .SUNDAY...North wind 15 to 25 knots with gusts to around 30 knots. Slight chance of rain in the morning. Waves 3 to 4 feet building to 5 to 7 feet. .SUNDAY NIGHT...North wind 15 to 25 knots becoming 15 to 20 knots after midnight, then becoming 10 to 20 knots early in the morning. Partly cloudy. Waves 5 to 7 feet subsiding to 3 to 4 feet. $$ LMZ644-212200- Port Washington to North Point Light WI- 1110 AM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... .REST OF TODAY...South wind 15 to 20 knots. Partly sunny. Waves 2 to 4 feet. .TONIGHT...Southwest wind 15 to 20 knots becoming west 10 to 15 knots late in the evening, then veering north after midnight rising to 15 to 20 knots early in the morning. Mostly cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and early morning, then building to 2 to 4 feet early in the morning. .SUNDAY...North wind 15 to 20 knots becoming 15 to 25 knots in the late morning and afternoon. Gusts up to 30 knots. Slight chance of rain in the morning. Waves 3 to 4 feet building to 6 to 8 feet. .SUNDAY NIGHT...North wind 15 to 25 knots becoming 15 to 20 knots after midnight, then becoming 10 to 20 knots early in the morning. Mostly cloudy through around midnight then becoming partly cloudy. Waves 6 to 8 feet subsiding to 3 to 5 feet. $$ LMZ645-212200- North Point Light to Wind Point WI- 1110 AM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... .REST OF TODAY...South wind 10 to 20 knots becoming 15 to 20 knots late in the afternoon. Partly sunny. Waves 1 to 2 feet building to 2 to 4 feet late in the afternoon. .TONIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots veering west late in the evening, then veering northwest after midnight becoming north 15 to 20 knots early in the morning. Mostly cloudy. Waves 1 to 2 feet building to 2 to 4 feet early in the morning. .SUNDAY...North wind 15 to 20 knots becoming 15 to 25 knots in the late morning and afternoon. Gusts up to 30 knots. Slight chance of rain in the morning. Waves 3 to 5 feet building to 7 to 9 feet. .SUNDAY NIGHT...North wind 15 to 25 knots with gusts to around 30 knots becoming 15 to 20 knots after midnight, then becoming north 15 to 20 knots early in the morning. Mostly cloudy through around midnight then becoming partly cloudy. Waves 7 to 9 feet subsiding to 4 to 6 feet. $$ LMZ646-212200- Wind Point WI to Winthrop Harbor IL- 1110 AM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... .REST OF TODAY...South wind 10 to 15 knots. Gusts up to 20 knots. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots becoming southwest 10 to 15 knots late in the evening, then veering northwest after midnight veering north 10 to 20 knots early in the morning. Mostly cloudy. Waves around 1 foot. .SUNDAY...North wind 15 to 20 knots becoming 15 to 25 knots in the late morning and afternoon. Gusts up to 30 knots. Slight chance of rain. Waves 3 to 5 feet building to 6 to 8 feet. .SUNDAY NIGHT...North wind 15 to 25 knots with gusts to around 30 knots becoming 15 to 20 knots with gusts to around 25 knots after midnight, then becoming north 15 to 20 knots early in the morning. Mostly cloudy. Waves 6 to 8 feet subsiding to 4 to 6 feet. $$ See Lake Michigan Open Waters Forecast for Monday through Wednesday.