FZUS53 KMKX 220210 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 910 PM CDT Sat Mar 21 2026 For waters within five nautical miles of shore on Lake Michigan LMZ643-221000- Sheboygan to Port Washington WI- 910 PM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT SUNDAY THROUGH LATE SUNDAY NIGHT... .REST OF TONIGHT...West wind 10 to 15 knots veering northwest after midnight, then becoming north 15 to 20 knots with gusts to around 25 knots early in the morning. Chance of sprinkles after midnight. Waves 1 to 2 feet 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 5 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 4 to 6 feet late in the evening, then subsiding to 3 to 5 feet after midnight subsiding to 3 to 4 feet early in the morning. .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. $$ LMZ644-221000- Port Washington to North Point Light WI- 910 PM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT SUNDAY THROUGH LATE SUNDAY NIGHT... .REST OF TONIGHT...Southwest wind 10 to 15 knots veering northwest 5 to 15 knots after midnight, then becoming north 15 to 20 knots with gusts to around 25 knots early in the morning. Mostly cloudy. Waves 1 to 2 feet building to 2 to 4 feet early in the morning. .SUNDAY...North wind 15 to 25 knots. Chance of sprinkles. Waves 3 to 5 feet building to 6 to 8 feet. .SUNDAY NIGHT...North wind 15 to 25 knots becoming 15 to 20 knots after midnight, then becoming 10 to 20 knots early in the morning. Partly cloudy. Waves 6 to 8 feet subsiding to 3 to 5 feet. .MONDAY...North wind 10 to 15 knots easing to 5 to 10 knots early in the afternoon, then veering northeast late in the afternoon. Sunny. Waves 3 to 4 feet subsiding to 1 to 2 feet in the afternoon. $$ LMZ645-221000- North Point Light to Wind Point WI- 910 PM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT SUNDAY THROUGH LATE SUNDAY NIGHT... .REST OF TONIGHT...Southwest wind 10 to 15 knots veering west after midnight, then becoming north 15 to 20 knots with gusts to around 25 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 through the day. Chance of flurries in the afternoon. 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 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 2 feet. $$ LMZ646-221000- Wind Point WI to Winthrop Harbor IL- 910 PM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT SUNDAY THROUGH LATE SUNDAY NIGHT... .REST OF TONIGHT...Southwest wind 10 to 15 knots veering west after midnight, then veering north 10 to 20 knots early in the morning. Mostly cloudy. Waves 1 to 2 feet. .SUNDAY...North wind 15 to 25 knots with gusts to around 30 knots. Chance of sprinkles. Waves 3 to 5 feet building to 6 to 8 feet. .SUNDAY NIGHT...North wind 15 to 25 knots with gusts to around 30 knots becoming 15 to 20 knots early in the morning. Partly cloudy. Waves 7 to 9 feet subsiding to 4 to 6 feet. .MONDAY...North wind 10 to 15 knots easing to 5 to 10 knots early in the afternoon, then veering northeast late in the afternoon. Partly sunny in the morning then clearing. Waves 3 to 5 feet subsiding to 1 to 2 feet. $$ See Lake Michigan Open Waters Forecast for Tuesday through Thursday.