FZUS53 KMKX 190210 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 910 PM CDT Mon May 18 2026 For waters within five nautical miles of shore on Lake Michigan LMZ643-191000- Sheboygan to Port Washington WI- 910 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT TUESDAY THROUGH TUESDAY AFTERNOON... .REST OF TONIGHT...South wind 10 to 15 knots rising to 15 to 20 knots after midnight. Slight chance of showers just before midnight, then showers likely and a chance of thunderstorms after midnight. patchy fog after midnight. Waves 3 to 4 feet. .TUESDAY...South wind 15 to 20 knots veering west late in the afternoon. Gusts up to 25 knots. Patchy fog in the morning. chance of showers and slight chance of thunderstorms through the day. Waves 3 to 4 feet. .TUESDAY NIGHT...Northwest wind 15 to 20 knots easing to 10 to 15 knots with gusts to around 20 knots late in the evening, then becoming northwest 10 to 15 knots with gusts to around 20 knots after midnight veering north early in the morning. Partly cloudy. Waves 1 to 2 feet. .WEDNESDAY...North wind 10 to 15 knots veering northeast late in the afternoon. Mostly sunny. Waves 1 to 2 feet. $$ LMZ644-191000- Port Washington to North Point Light WI- 910 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT TUESDAY THROUGH TUESDAY AFTERNOON... .REST OF TONIGHT...South wind 10 to 15 knots. Gusts up to 20 knots. Slight chance of showers just before midnight, then showers likely and a chance of thunderstorms after midnight. patchy fog early in the morning. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .TUESDAY...Southwest wind 10 to 15 knots rising to 15 to 20 knots late in the morning, then veering west early in the afternoon becoming west 15 to 20 knots late in the afternoon. Gusts up to 25 knots. Chance of showers and slight chance of thunderstorms through the day. Waves 2 to 4 feet subsiding to 1 to 2 feet in the afternoon. .TUESDAY NIGHT...Northwest wind 15 to 20 knots easing to 10 to 15 knots late in the evening, then becoming northwest 10 to 15 knots with gusts to around 20 knots after midnight veering north early in the morning. Partly cloudy. Waves 1 to 2 feet. .WEDNESDAY...North wind 10 to 15 knots veering northeast late in the afternoon. Mostly sunny. Waves 1 to 2 feet building to 2 to 4 feet in the afternoon. $$ LMZ645-191000- North Point Light to Wind Point WI- 910 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT TUESDAY THROUGH TUESDAY AFTERNOON... .REST OF TONIGHT...South wind 10 to 15 knots rising to 15 to 20 knots early in the morning. Slight chance of showers just before midnight, then showers likely and a chance of thunderstorms after midnight. patchy fog early in the morning. Waves 1 to 2 feet building to 2 to 4 feet after midnight. .TUESDAY...Southwest wind 15 to 20 knots veering west early in the afternoon, then easing to 10 to 15 knots late in the afternoon. Gusts up to 25 knots. Slight chance of showers in the morning. Slight chance of thunderstorms through the day. Chance of showers in the afternoon. Waves 2 to 4 feet subsiding to 1 to 2 feet late in the afternoon. .TUESDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots veering north early in the morning. Partly cloudy. Waves 1 to 2 feet. .WEDNESDAY...North wind 10 to 15 knots veering northeast late in the afternoon. Mostly sunny. Waves 2 to 4 feet. $$ LMZ646-191000- Wind Point WI to Winthrop Harbor IL- 910 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT TUESDAY THROUGH TUESDAY AFTERNOON... .REST OF TONIGHT...South wind 10 to 15 knots. Gusts up to 20 knots. Slight chance of showers just before midnight, then showers likely and a chance of thunderstorms after midnight. patchy fog early in the morning. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .TUESDAY...Southwest wind 15 to 20 knots becoming west 10 to 15 knots late in the afternoon. Gusts up to 25 knots. Slight chance of showers in the morning. Slight chance of thunderstorms through the day. Chance of showers in the afternoon. Waves 2 to 4 feet subsiding to 1 to 2 feet late in the afternoon. .TUESDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots veering north early in the morning. Partly cloudy. Waves 1 to 2 feet. .WEDNESDAY...North wind 10 to 15 knots veering northeast late in the afternoon. Mostly sunny. Waves 2 to 4 feet. $$ See Lake Michigan Open Waters Forecast for Thursday through Saturday.