FZUS53 KMKX 180610 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 110 AM CDT Mon May 18 2026 For waters within five nautical miles of shore on Lake Michigan LMZ643-180900- Sheboygan to Port Washington WI- 110 AM CDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 3 AM CDT EARLY THIS MORNING... .REST OF TONIGHT...South wind 10 to 15 knots becoming south 10 to 15 knots with gusts to around 20 knots early in the morning. Areas of dense fog after midnight, then patchy fog early in the morning. chance of showers and thunderstorms early in the morning. Waves 3 to 5 feet. .MONDAY...South wind 15 to 20 knots. Chance of showers and thunderstorms. Waves 3 to 4 feet building to 4 to 6 feet late in the morning, then subsiding to 3 to 4 feet in the afternoon. .MONDAY NIGHT...South wind 15 to 20 knots becoming 15 to 25 knots early in the morning. Patchy fog through around midnight. slight chance of showers and thunderstorms through around midnight, then showers likely and a chance of thunderstorms after midnight. Waves 3 to 4 feet building to 4 to 6 feet. .TUESDAY...South wind 15 to 25 knots veering west late in the afternoon. Rain showers likely and a chance of thunderstorms through the day. Waves 5 to 7 feet subsiding to 3 to 4 feet. $$ LMZ644-180900- Port Washington to North Point Light WI- 110 AM CDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 3 AM CDT EARLY THIS MORNING... .REST OF TONIGHT...South wind 10 to 15 knots. Gusts up to 20 knots early in the morning. Patchy dense fog after midnight. chance of showers and thunderstorms early in the morning. Waves 3 to 4 feet. .MONDAY...South wind 10 to 20 knots becoming 15 to 20 knots in the late morning and early afternoon, then becoming south 15 to 20 knots late in the afternoon. Chance of showers and thunderstorms. Waves 3 to 4 feet. .MONDAY NIGHT...South wind 15 to 20 knots becoming 15 to 25 knots early in the morning. Slight chance of showers and thunderstorms through around midnight, then showers likely and a chance of thunderstorms after midnight. Waves 3 to 4 feet building to 3 to 5 feet early in the morning. .TUESDAY...South wind 15 to 25 knots veering west late in the afternoon. Rain showers likely and a chance of thunderstorms through the day. Waves 3 to 5 feet subsiding to 3 to 4 feet in the afternoon. $$ LMZ645-180900- North Point Light to Wind Point WI- 110 AM CDT Mon May 18 2026 .REST OF TONIGHT...South wind 10 to 15 knots. Gusts up to 20 knots. Chance of showers and thunderstorms early in the morning. Waves 2 to 4 feet. .MONDAY...South wind 15 to 20 knots. Rain showers likely in the morning. Chance of thunderstorms through the day. Chance of showers in the afternoon. Waves 2 to 4 feet. .MONDAY NIGHT...South wind 15 to 20 knots becoming 15 to 25 knots early in the morning. Slight chance of showers and thunderstorms through around midnight, then showers likely and a chance of thunderstorms after midnight. Waves 3 to 4 feet. A small craft advisory may be needed. .TUESDAY...South wind 15 to 25 knots veering southwest late in the morning, then veering west early in the afternoon becoming 15 to 20 knots late in the afternoon. Showers likely and a chance of thunderstorms. Waves 3 to 4 feet. $$ LMZ646-180900- Wind Point WI to Winthrop Harbor IL- 110 AM CDT Mon May 18 2026 .REST OF TONIGHT...South wind 10 to 15 knots rising to 15 to 20 knots early in the morning. Chance of showers and thunderstorms early in the morning. Waves 2 to 4 feet. .MONDAY...South wind 15 to 20 knots easing to 10 to 15 knots in the afternoon. Rain showers likely in the morning. Chance of thunderstorms through the day. Chance of showers in the afternoon. Waves 2 to 4 feet. .MONDAY NIGHT...South wind 15 to 20 knots becoming 15 to 25 knots early in the morning. Slight chance of showers and thunderstorms through around midnight, then showers likely and a chance of thunderstorms after midnight. Waves 3 to 4 feet. A small craft advisory may be needed. .TUESDAY...South wind 15 to 25 knots veering southwest late in the morning, then becoming 15 to 20 knots early in the afternoon veering west late in the afternoon. Showers likely and a chance of thunderstorms. Waves 3 to 4 feet subsiding to 1 to 2 feet late in the afternoon. $$ See Lake Michigan Open Waters Forecast for Wednesday through Friday.