FZUS53 KMKX 042010 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 310 PM CDT Tue Aug 4 2026 For waters within five nautical miles of shore on Lake Michigan LMZ643-050900- Sheboygan to Port Washington WI- 310 PM CDT Tue Aug 4 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... .THROUGH EARLY EVENING...South wind 15 to 20 knots. Partly sunny. Waves 3 to 4 feet. .TONIGHT...South wind 10 to 20 knots veering southwest 10 to 15 knots late in the evening, then easing to 5 to 10 knots after midnight veering west early in the morning. Chance of showers through around midnight. Chance of thunderstorms through the night. Showers likely after midnight. Waves 3 to 4 feet subsiding to 1 to 2 feet after midnight. .WEDNESDAY...West wind 5 to 10 knots backing southeast early in the afternoon, then becoming southeast 5 to 10 knots late in the afternoon. Patchy fog in the morning. chance of showers and thunderstorms in the morning. Waves around 1 foot. .WEDNESDAY NIGHT...Southeast wind 5 to 10 knots backing east late in the evening, then backing northwest after midnight veering north early in the morning. Slight chance of showers through around midnight. Waves around 1 foot. .THURSDAY...North wind 5 to 10 knots becoming east late in the morning, then becoming southeast early in the afternoon becoming southeast 5 to 10 knots late in the afternoon. Partly sunny in the morning then clearing. Waves nearly calm. $$ LMZ644-050900- Port Washington to North Point Light WI- 310 PM CDT Tue Aug 4 2026 .THROUGH EARLY EVENING...South wind 10 to 15 knots. Mostly sunny. Waves 1 to 2 feet building to 2 to 4 feet late in the afternoon. .TONIGHT...South wind 10 to 15 knots becoming southwest 5 to 10 knots in the late evening and early morning, then veering west early in the morning. Chance of showers and slight chance of thunderstorms through around midnight, then showers likely and a chance of thunderstorms after midnight. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and overnight. .WEDNESDAY...West wind 5 to 10 knots backing southeast late in the afternoon. Patchy fog in the morning. showers likely and a chance of thunderstorms in the morning, then slight chance of showers and thunderstorms in the afternoon. Waves around 1 foot. .WEDNESDAY NIGHT...East wind 5 to 10 knots becoming northeast late in the evening, then becoming northwest after midnight veering north early in the morning. Chance of showers and slight chance of thunderstorms through around midnight. Slight chance of showers after midnight. Waves nearly calm. .THURSDAY...North wind 5 to 10 knots veering southeast late in the afternoon. Partly sunny. Waves nearly calm. $$ LMZ645-050900- North Point Light to Wind Point WI- 310 PM CDT Tue Aug 4 2026 .THROUGH EARLY EVENING...South wind 10 to 15 knots. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...South wind 10 to 15 knots becoming southwest 5 to 10 knots after midnight, then veering west early in the morning. Slight chance of showers and thunderstorms late in the evening. Chance of showers and thunderstorms after midnight. Waves 1 to 2 feet. .WEDNESDAY...West wind 5 to 10 knots backing east late in the afternoon. Showers likely in the morning. Chance of thunderstorms through the day. Slight chance of showers in the afternoon. Waves around 1 foot. .WEDNESDAY NIGHT...Northeast wind 5 to 10 knots backing north after midnight. Chance of showers and slight chance of thunderstorms through around midnight, then slight chance of showers after midnight. Waves nearly calm. .THURSDAY...North wind 5 to 10 knots veering east late in the afternoon. Partly sunny. Waves around 1 foot. $$ LMZ646-050900- Wind Point WI to Winthrop Harbor IL- 310 PM CDT Tue Aug 4 2026 .THROUGH EARLY EVENING...South wind 10 to 15 knots. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...South wind 10 to 15 knots easing to 5 to 10 knots late in the evening, then veering southwest after midnight veering west early in the morning. Chance of showers and thunderstorms after midnight. Waves 1 to 2 feet. .WEDNESDAY...Southwest wind 5 to 10 knots backing southeast late in the afternoon. Showers likely in the morning. Chance of thunderstorms through the day. Chance of showers in the afternoon. Waves around 1 foot. .WEDNESDAY NIGHT...East wind 5 to 10 knots backing north late in the evening, then becoming north 5 to 10 knots after midnight. Chance of thunderstorms through around midnight. Chance of showers through the night. Waves nearly calm. .THURSDAY...North wind 5 to 10 knots veering east late in the afternoon. Partly sunny. Waves around 1 foot. $$ See Lake Michigan Open Waters Forecast for Friday through Sunday.