131 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.  781 FZUS53 KDLH 180623 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 123 AM CDT Mon May 18 2026 For waters within five nautical miles of shore on Lake Superior. Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. LSZ140-181600- Grand Portage to Grand Marais MN- 123 AM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the late morning and early afternoon. Chance of rain showers and slight chance of thunderstorms early in the morning, then slight chance of rain showers late in the morning. Waves 2 to 4 feet. .TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 25 knots. Chance of rain showers in the evening. Slight chance of thunderstorms through the night. Rain showers after midnight. Waves 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed. .TUESDAY...North wind 20 to 25 knots becoming northwest 10 to 15 knots with gusts to around 20 knots in the afternoon. Chance of rain showers in the morning. Waves 4 to 7 feet subsiding to 1 to 2 feet. Waves occasionally to 9 feet. A small craft advisory may be needed. .TUESDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots in the evening. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 2 feet. $$ LSZ141-181600- Grand Marais to Taconite Harbor MN- 123 AM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...Northeast wind 5 to 10 knots becoming west late in the morning, then becoming southeast early in the afternoon becoming northeast late in the afternoon. Slight chance of showers and thunderstorms early in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots after midnight. Chance of rain showers and slight chance of thunderstorms in the evening, then rain showers after midnight. Waves 1 to 3 feet building to 2 to 4 feet after midnight. A small craft advisory may be needed. .TUESDAY...North wind 5 to 10 knots becoming northwest in the afternoon. Gusts up to 20 knots. Chance of rain showers in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 2 feet. $$ LSZ142-181600- Taconite Harbor to Silver Bay Harbor MN- 123 AM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...North wind 5 to 10 knots becoming northwest late in the morning, then becoming southeast early in the afternoon becoming northeast late in the afternoon. Slight chance of showers and thunderstorms early in the morning. Waves 3 to 5 feet subsiding to 1 to 2 feet late in the afternoon. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots. Chance of rain showers in the evening. Slight chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 2 feet building to 2 to 4 feet after midnight. A small craft advisory may be needed. .TUESDAY...Northwest wind 5 to 10 knots. Gusts up to 20 knots late in the afternoon. Chance of rain showers in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon. A small craft advisory may be needed. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 2 feet. $$ LSZ143-181600- Silver Bay Harbor to Two Harbors MN- 123 AM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...Northeast wind 5 to 10 knots. Slight chance of showers and thunderstorms early in the morning. Waves 3 to 5 feet subsiding to 1 to 2 feet late in the afternoon. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots late in the evening increasing to 25 knots, then decreasing to 20 knots early in the morning. Rain showers likely in the evening. Slight chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 2 feet building to 2 to 4 feet after midnight. A small craft advisory may be needed. .TUESDAY...North wind 5 to 10 knots becoming northwest in the late morning and afternoon. Chance of rain showers in the morning. Waves 2 to 4 feet. A small craft advisory may be needed. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 2 feet. $$ LSZ144-181600- Two Harbors to Duluth MN- 123 AM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...Northeast wind 5 to 10 knots. Slight chance of rain showers early in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots late in the evening increasing to 25 knots, then decreasing to 20 knots early in the morning. Rain showers likely in the evening. Slight chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 2 feet building to 3 to 5 feet in the late evening and overnight. Waves occasionally to 7 feet. A small craft advisory may be needed. .TUESDAY...Northwest wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Chance of rain showers in the morning. Waves 2 to 4 feet. A small craft advisory may be needed. .TUESDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots after midnight. Mostly cloudy. Waves 1 to 2 feet. $$ LSZ145-181600- Duluth MN to Port Wing WI- 123 AM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...Northeast wind 5 to 10 knots. Slight chance of rain showers early in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots late in the evening increasing to 25 knots, then decreasing to 20 knots early in the morning. Rain showers likely in the evening. Slight chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 2 feet building to 3 to 5 feet in the late evening and overnight. Waves occasionally to 7 feet. A small craft advisory may be needed. .TUESDAY...North wind 10 to 15 knots becoming west in the late morning and afternoon. Gusts up to 20 knots. Chance of rain showers in the morning. Waves 2 to 4 feet. A small craft advisory may be needed. .TUESDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots becoming west 5 knots after midnight. Mostly cloudy. Waves 1 to 2 feet. $$ LSZ146-181600- Port Wing to Sand Island WI- 123 AM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...Northeast wind 5 to 10 knots. Slight chance of rain showers early in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 25 knots. Rain showers likely in the evening. Slight chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 3 feet building to 3 to 5 feet after midnight. Waves occasionally to 7 feet. A small craft advisory may be needed. .TUESDAY...North wind 5 to 10 knots with gusts to around 20 knots becoming west with gusts to around 20 knots in the late morning and afternoon. Chance of rain showers in the morning. Waves 3 to 5 feet. Waves occasionally to 7 feet. A small craft advisory may be needed. .TUESDAY NIGHT...West wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet. $$ LSZ147-181600- Sand Island to Bayfield WI- 123 AM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...North wind 5 to 10 knots becoming east late in the afternoon. Slight chance of rain showers early in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TONIGHT...Northeast wind 15 to 20 knots with gusts to around 25 knots. Rain showers likely in the evening. Slight chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 2 feet building to 3 to 5 feet in the late evening and overnight. Waves occasionally to 7 feet. A small craft advisory may be needed. .TUESDAY...North wind 10 to 15 knots with gusts to around 20 knots becoming west 5 to 10 knots with gusts to around 20 knots in the late morning and afternoon. Chance of rain showers in the morning. Waves 3 to 5 feet subsiding to 1 to 3 feet late in the afternoon. Waves occasionally to 7 feet. A small craft advisory may be needed. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 2 feet. $$ LSZ150-181600- Outer Apostle Islands Beyond 5 NM from Mainland- 123 AM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...North wind 5 to 10 knots becoming northeast late in the afternoon. Slight chance of showers and thunderstorms early in the morning. Waves 3 to 5 feet subsiding to 1 to 3 feet late in the afternoon. .TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots in the late evening and overnight. Rain showers likely in the evening. Slight chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 3 feet building to 5 to 8 feet. Waves occasionally to 10 feet. A small craft advisory may be needed. .TUESDAY...North wind 10 to 15 knots with gusts to around 25 knots becoming west 5 to 10 knots with gusts to around 20 knots in the late morning and afternoon. Chance of rain showers in the morning. Waves 6 to 9 feet subsiding to 4 to 6 feet in the afternoon. Waves occasionally to 11 feet. A small craft advisory may be needed. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Mostly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. $$ LSZ121-181600- Chequamegon Bay-Bayfield to Oak Point WI- 123 AM CDT Mon May 18 2026 .TODAY...North wind 5 knots becoming northeast in the afternoon. Slight chance of rain showers early in the morning. Waves 1 to 3 feet. .TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 25 knots in the late evening and early morning decreasing to 20 knots. Rain showers likely in the evening. Slight chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 3 feet building to 5 to 8 feet. Waves occasionally to 10 feet. A small craft advisory may be needed. .TUESDAY...North wind 10 to 15 knots with gusts to around 20 knots becoming northwest with gusts to around 20 knots in the late morning and afternoon. Chance of rain showers in the morning. Waves 1 to 2 feet. .TUESDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots after midnight. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 foot or less. $$ LSZ148-181600- Oak Point to Saxon Harbor WI- 123 AM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...North wind 5 knots becoming northeast in the afternoon. Slight chance of rain showers early in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 25 knots in the late evening and early morning decreasing to 20 knots. Rain showers likely in the evening. Slight chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 3 feet building to 5 to 8 feet. Waves occasionally to 10 feet. A small craft advisory may be needed. .TUESDAY...North wind 10 to 15 knots with gusts to around 20 knots becoming northwest with gusts to around 20 knots in the late morning and afternoon. Chance of rain showers in the morning. Waves 5 to 8 feet subsiding to 3 to 5 feet late in the afternoon. Waves occasionally to 10 feet. A small craft advisory may be needed. .TUESDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots after midnight. Mostly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH  788 FZUS53 KGRR 180623 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 223 AM EDT Mon May 18 2026 For waters within five nautical miles of shore on Lake Michigan LMZ849-180800- Pentwater to Manistee MI- 223 AM EDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...South winds to 30 knots. Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Waves 4 to 6 feet. .MONDAY...South winds to 30 knots. Rain showers likely and a chance of thunderstorms. Waves 5 to 7 feet. .MONDAY NIGHT...South winds to 30 knots. Mostly cloudy with a chance of showers and thunderstorms. Waves 4 to 6 feet. .TUESDAY...South winds to 30 knots veering southwest early in the afternoon. Mostly cloudy with a chance of thunderstorms and a slight chance of rain showers. Waves 5 to 7 feet. .TUESDAY NIGHT...Northwest winds 15 to 25 knots veering north after midnight. Partly cloudy. Waves 4 to 6 feet. .WEDNESDAY...North winds 15 to 20 knots. Mostly sunny. Waves 2 to 4 feet. .THURSDAY...Northeast winds 5 to 10 knots backing north 10 to 15 knots early in the afternoon. Mostly sunny. Waves 1 foot or less. .FRIDAY...East winds 10 to 15 knots. Mostly cloudy. Waves 1 foot or less. $$ LMZ848-180800- Whitehall to Pentwater MI- 223 AM EDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...South winds to 30 knots. Mostly cloudy with a slight chance of showers and thunderstorms. Waves 4 to 6 feet. .MONDAY...South winds to 30 knots. Rain showers likely and a chance of thunderstorms. Waves 6 to 8 feet. .MONDAY NIGHT...South winds to 30 knots. Rain showers and a chance of thunderstorms. Waves 5 to 7 feet. .TUESDAY...South winds to 30 knots veering southwest early in the afternoon. Rain showers and a chance of thunderstorms. Waves 6 to 8 feet. .TUESDAY NIGHT...Northwest winds 20 to 25 knots veering north 15 to 20 knots after midnight. Partly cloudy. Waves 4 to 6 feet. .WEDNESDAY...North winds 15 to 25 knots. Mostly sunny. Waves 2 to 4 feet. .THURSDAY...Northeast winds 10 to 15 knots backing north early in the afternoon. Mostly sunny. Waves around 1 foot. .FRIDAY...East winds 10 to 15 knots. Mostly cloudy. Waves 1 foot or less. $$ LMZ847-180800- Grand Haven to Whitehall MI- 223 AM EDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...South winds to 30 knots. Mostly cloudy. Waves 4 to 6 feet. .MONDAY...South winds to 30 knots. Rain showers likely and a chance of thunderstorms. Waves 5 to 7 feet. .MONDAY NIGHT...South winds to 30 knots. Mostly cloudy with a chance of showers and thunderstorms. Waves 4 to 6 feet. .TUESDAY...South winds to 30 knots veering southwest early in the afternoon. Rain showers likely and a chance of thunderstorms. Waves 6 to 8 feet. .TUESDAY NIGHT...Northwest winds 20 to 25 knots veering north after midnight. Partly cloudy. Waves 4 to 6 feet. .WEDNESDAY...North winds 15 to 25 knots. Mostly sunny. Waves 2 to 4 feet. .THURSDAY...East winds 10 to 15 knots backing north early in the afternoon. Mostly sunny. Waves 1 foot or less. .FRIDAY...East winds 10 to 20 knots. Mostly cloudy. Waves 1 foot or less. $$ LMZ846-180800- Holland to Grand Haven MI- 223 AM EDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...South winds 20 to 25 knots. Mostly cloudy. Waves 3 to 5 feet. .MONDAY...South winds to 30 knots. Rain showers likely and a chance of thunderstorms. Waves 4 to 6 feet. .MONDAY NIGHT...South winds to 30 knots. Rain showers likely and a chance of thunderstorms. Waves 4 to 6 feet. .TUESDAY...South winds to 30 knots veering southwest 20 to 25 knots early in the afternoon. Rain showers likely and a chance of thunderstorms. Waves 5 to 7 feet. .TUESDAY NIGHT...Northwest winds around 20 knots. Partly cloudy. Waves 3 to 5 feet. .WEDNESDAY...North winds 15 to 25 knots. Mostly sunny. Waves 3 to 5 feet. .THURSDAY...Northeast winds 10 to 15 knots. Mostly sunny. Waves 1 foot or less. .FRIDAY...East winds 15 to 20 knots. Mostly cloudy. Waves around 1 foot. $$ LMZ845-180800- South Haven to Holland MI- 223 AM EDT Mon May 18 2026 .REST OF TONIGHT...South winds 20 to 25 knots. Partly cloudy. Waves 2 to 4 feet. .MONDAY...South winds 20 to 25 knots. Rain showers likely and a chance of thunderstorms. Waves 3 to 5 feet. .MONDAY NIGHT...South winds 15 to 25 knots. Partly cloudy with a chance of showers and thunderstorms. Waves 3 to 5 feet. .TUESDAY...Southwest winds to 30 knots. Partly sunny with a chance of showers and thunderstorms. Waves 4 to 6 feet. .TUESDAY NIGHT...West winds 15 to 20 knots veering northwest in the late evening and overnight. Partly cloudy with rain showers likely and a slight chance of thunderstorms. Waves 3 to 5 feet. .WEDNESDAY...North winds 15 to 25 knots. Mostly sunny. Waves 3 to 5 feet. .THURSDAY...Northeast winds 10 to 15 knots. Mostly sunny. Waves around 1 foot. .FRIDAY...East winds 10 to 15 knots. Mostly cloudy. Waves 1 foot or less. $$ LMZ844-180800- St Joseph to South Haven MI- 223 AM EDT Mon May 18 2026 .REST OF TONIGHT...South winds 15 to 20 knots. Partly cloudy. Waves 1 to 3 feet. .MONDAY...South winds around 20 knots. Mostly cloudy with a chance of showers and thunderstorms. Waves 2 to 4 feet. .MONDAY NIGHT...South winds 15 to 25 knots. Partly cloudy with a chance of showers and thunderstorms. Waves 2 to 4 feet. .TUESDAY...Southwest winds 20 to 25 knots. Partly sunny with a chance of showers and thunderstorms. Waves 3 to 5 feet. .TUESDAY NIGHT...Northwest winds 15 to 20 knots becoming around 20 knots after midnight. Mostly cloudy with a slight chance of showers and thunderstorms. Waves 3 to 5 feet. .WEDNESDAY...North winds 15 to 20 knots. Mostly sunny. Waves 3 to 5 feet. .THURSDAY...Northeast winds 10 to 15 knots. Mostly sunny. Waves 1 to 2 feet. .FRIDAY...East winds 10 to 15 knots. Mostly cloudy with a chance of rain showers. Waves 1 foot or less. $$  886 FZUS53 KGRB 180625 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 124 AM CDT Mon May 18 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-181000- Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 124 AM CDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF THE NIGHT...E wind 5 to 10 kts veering SE 10 to 15 kts after midnight. Waves 1 to 3 ft. Patchy dense fog. a chance of showers and thunderstorms. .MONDAY...S wind 10 to 15 kts. Waves 1 to 3 ft. Patchy dense fog in the morning. a chance of showers and a slight chance of thunderstorms. .MONDAY NIGHT...S wind 10 to 15 kts. Waves 2 ft or less. Patchy fog. a chance of showers and thunderstorms. .TUESDAY...SW wind 15 to 25 kts veering NW early in the afternoon. Waves 1 to 3 ft. A chance of showers in the morning. A Small Craft Advisory may be needed. $$ LMZ541-181000- Rock Island Passage to Sturgeon Bay WI- 124 AM CDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT... .REST OF THE NIGHT...SE wind 10 to 15 kts veering S after midnight. Waves 3 to 5 ft. Areas of dense fog. a chance of showers and thunderstorms. .MONDAY...S wind 15 to 25 kts decreasing to 10 to 15 kts early in the afternoon. Waves 4 to 7 ft. Patchy fog in the morning. a chance of showers and a slight chance of thunderstorms. .MONDAY NIGHT...S wind 10 to 15 kts increasing to 15 to 25 kts after midnight. Waves 5 to 8 ft. Patchy fog. a chance of showers in the evening. A chance of thunderstorms. Rain showers likely after midnight. .TUESDAY...SW wind 15 to 25 kts veering NW early in the afternoon. Waves 5 to 8 ft. A chance of showers in the morning. $$ LMZ542-543-181000- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 124 AM CDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT... .REST OF THE NIGHT...SE wind 5 to 10 kts veering S 10 to 15 kts after midnight. Waves 3 to 5 ft. Areas of dense fog. a slight chance of showers and thunderstorms. .MONDAY...S wind 15 to 25 kts decreasing to 10 to 15 kts early in the afternoon. Waves 4 to 7 ft. Patchy dense fog in the morning. a chance of showers and a slight chance of thunderstorms. .MONDAY NIGHT...S wind 10 to 15 kts increasing to 15 to 25 kts in the late evening and overnight. Waves 4 to 7 ft. Patchy fog. a chance of showers and thunderstorms. .TUESDAY...SW wind 15 to 25 kts veering W in the late morning and afternoon. Waves 5 to 8 ft subsiding to 4 to 7 ft in the afternoon. A chance of showers in the morning. $$ See Lake Michigan Open Lake Forecast for Wednesday through Friday. Wave height forecast is for ice free areas.