FZUS53 KMKX 220010 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 710 PM CDT Sat Mar 21 2026 For waters within five nautical miles of shore on Lake Michigan LMZ643-220400- Sheboygan to Port Washington WI- 710 PM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT SUNDAY THROUGH LATE SUNDAY NIGHT... .TONIGHT...South wind 10 to 20 knots veering west 10 to 15 knots late in the evening, then veering northwest after midnight becoming north 15 to 20 knots with gusts to around 25 knots early in the morning. Chance of sprinkles 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. Chance of sprinkles and flurries 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. .MONDAY...North wind 10 to 15 knots easing to 5 to 10 knots early in the afternoon, then veering northeast late in the afternoon. Sunny. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late morning and afternoon. $$ LMZ644-220400- Port Washington to North Point Light WI- 710 PM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT SUNDAY THROUGH LATE SUNDAY NIGHT... .TONIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots becoming southwest 10 to 15 knots late in the evening, then veering northwest 5 to 15 knots after midnight becoming north 15 to 20 knots with gusts to around 25 knots early in the morning. Mostly cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and early morning, then building to 2 to 4 feet early in the morning. .SUNDAY...North wind 15 to 25 knots. Chance of sprinkles. Waves 3 to 4 feet building to 6 to 8 feet. .SUNDAY NIGHT...North wind 15 to 25 knots becoming 15 to 20 knots after midnight, then becoming 10 to 20 knots early in the morning. Partly cloudy. Waves 6 to 8 feet subsiding to 3 to 5 feet. .MONDAY...North wind 10 to 15 knots easing to 5 to 10 knots early in the afternoon, then veering northeast late in the afternoon. Sunny. Waves 3 to 4 feet subsiding to 1 to 2 feet in the afternoon. $$ LMZ645-220400- North Point Light to Wind Point WI- 710 PM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT SUNDAY THROUGH LATE SUNDAY NIGHT... .TONIGHT...Southwest wind 10 to 20 knots with gusts to around 25 knots becoming 10 to 15 knots late in the evening, then veering west after midnight becoming north 15 to 20 knots with gusts to around 25 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 25 knots with gusts to around 30 knots. Chance of sprinkles through the day. Chance of flurries in the afternoon. 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 early in the morning. Partly cloudy. Waves 7 to 9 feet subsiding to 4 to 6 feet. .MONDAY...North wind 10 to 15 knots easing to 5 to 10 knots early in the afternoon, then veering northeast late in the afternoon. Mostly sunny. Waves 3 to 5 feet subsiding to 1 to 3 feet. $$ LMZ646-220400- Wind Point WI to Winthrop Harbor IL- 710 PM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT SUNDAY THROUGH LATE SUNDAY NIGHT... .TONIGHT...Southwest wind 10 to 15 knots with gusts to around 25 knots becoming southwest 10 to 15 knots with gusts to around 20 knots late in the evening, then veering west after midnight veering north 10 to 20 knots early in the morning. Mostly cloudy. Waves around 1 foot building to 2 to 4 feet early in the morning. .SUNDAY...North wind 15 to 25 knots with gusts to around 30 knots. Chance of sprinkles. Waves 3 to 5 feet building to 7 to 9 feet. .SUNDAY NIGHT...North wind 15 to 25 knots with gusts to around 30 knots becoming 15 to 20 knots early in the morning. Partly cloudy. Waves 7 to 9 feet subsiding to 4 to 6 feet. .MONDAY...North wind 10 to 15 knots easing to 5 to 10 knots early in the afternoon, then veering northeast late in the afternoon. Partly sunny in the morning then clearing. Waves 3 to 5 feet subsiding to 1 to 2 feet. $$ See Lake Michigan Open Waters Forecast for Tuesday through Thursday.