027 FZUS53 KMKX 181810 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 110 PM CDT Mon May 18 2026 For waters within five nautical miles of shore on Lake Michigan LMZ643-182200- Sheboygan to Port Washington WI- 110 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY EVENING... .REST OF TODAY...South wind 10 to 15 knots with gusts to around 20 knots. Mostly cloudy. Waves 3 to 4 feet. .TONIGHT...South wind 10 to 15 knots rising to 15 to 20 knots after midnight. Patchy fog after midnight. chance of showers and thunderstorms 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 thunderstorms in the morning. Chance of showers 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 2 to 4 feet subsiding to 1 to 2 feet in the late evening and overnight. $$ LMZ644-182200- Port Washington to North Point Light WI- 110 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...South wind 10 to 15 knots with gusts to around 20 knots. Mostly cloudy. Waves 2 to 4 feet. .TONIGHT...South wind 10 to 15 knots with gusts to around 20 knots rising to 15 to 20 knots after midnight, then becoming south 15 to 20 knots with gusts to around 25 knots early in the morning. Chance of showers and thunderstorms after midnight. Waves 2 to 4 feet. .TUESDAY...South wind 15 to 20 knots veering west late in the afternoon. Gusts up to 25 knots. Chance of thunderstorms in the morning. Chance of showers through the day. Waves 2 to 4 feet subsiding to 1 to 2 feet late in the afternoon. .TUESDAY NIGHT...Northwest wind 15 to 20 knots easing to 10 to 15 knots late in the evening, then becoming northwest 10 to 15 knots with gusts to around 20 knots after midnight veering north early in the morning. Partly cloudy. Waves 1 to 2 feet. $$ LMZ645-182200- North Point Light to Wind Point WI- 110 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...South wind 10 to 15 knots with gusts to around 20 knots. Mostly cloudy. Waves 2 to 4 feet. .TONIGHT...South wind 10 to 15 knots becoming 10 to 20 knots late in the evening, then becoming 15 to 20 knots after midnight becoming south 15 to 20 knots early in the morning. Gusts up to 25 knots. Rain showers likely and a chance of thunderstorms after midnight. Waves 2 to 4 feet. .TUESDAY...South wind 15 to 20 knots veering west late in the afternoon. Gusts up to 25 knots. Chance of thunderstorms in the morning. Chance of showers through the day. 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. $$ LMZ646-182200- Wind Point WI to Winthrop Harbor IL- 110 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...South wind 10 to 15 knots with gusts to around 20 knots. Slight chance of showers and thunderstorms early in the afternoon. Waves 2 to 4 feet. .TONIGHT...South wind 10 to 15 knots rising to 15 to 20 knots in the late evening and early morning, then becoming south 15 to 20 knots with gusts to around 25 knots early in the morning. Rain showers likely and a chance of thunderstorms after midnight. Waves 2 to 4 feet. .TUESDAY...South wind 15 to 20 knots veering west late in theafternoon. Gusts up to 25 knots. Chance of showers and slight chance of thunderstorms. Waves 2 to 4 feet subsiding to 1 to 2 feet late in the afternoon. .TUESDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots veering north early in the morning. Partly cloudy. Waves 1 to 2 feet. $$ See Lake Michigan Open Waters Forecast for Wednesday through Friday.  405 FZUS53 KGRB 181816 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 116 PM CDT Mon May 18 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-182200- 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- 116 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING... .THIS AFTERNOON...S wind 5 to 10 kts backing SE early in the afternoon. Waves 2 ft or less. A chance of showers and thunderstorms. .TONIGHT...S wind 10 to 15 kts. Waves 1 to 3 ft. Patchy fog. a chance of showers and thunderstorms. .TUESDAY...SW wind 15 to 25 kts veering NW 10 to 15 kts early in the afternoon. Waves 2 to 4 ft. A chance of showers in the morning. .TUESDAY NIGHT...NW wind 10 to 15 kts. Waves 1 to 3 ft. Mostly cloudy in the evening then becoming partly cloudy. $$ LMZ541-182200- Rock Island Passage to Sturgeon Bay WI- 116 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT... .THIS AFTERNOON...S wind 5 to 10 kts. Waves 3 to 5 ft. Patchy fog. a chance of showers and thunderstorms. .TONIGHT...S wind 10 to 15 kts. Waves 2 to 4 ft building to 4 to 7 ft after midnight. Patchy dense fog in the evening. Areas of dense fog after midnight. a chance of showers in the evening. A chance of thunderstorms. Rain showers after midnight. .TUESDAY...SW wind 15 to 25 kts veering NW 10 to 20 kts early in the afternoon. Waves 4 to 7 ft. Patchy fog in the morning. a chance of showers. .TUESDAY NIGHT...NW wind 10 to 15 kts. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Mostly cloudy in the evening then becoming partly cloudy. $$ LMZ542-543-182200- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 116 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT... .THIS AFTERNOON...S wind 10 to 15 kts. Waves 3 to 5 ft. Patchy fog. a slight chance of showers and thunderstorms. .TONIGHT...S wind 10 to 15 kts. Waves 2 to 4 ft building to 4 to 7 ft after midnight. Patchy fog. a chance of showers and thunderstorms. .TUESDAY...SW wind 15 to 25 kts veering W early in the afternoon. Waves 4 to 7 ft. Patchy fog in the morning. a chance of showers in the morning. .TUESDAY NIGHT...NW wind 10 to 15 kts. Waves 2 to 4 ft. Mostly cloudy in the evening then becoming partly cloudy. $$ See Lake Michigan Open Lake Forecast for Wednesday through Friday. Wave height forecast is for ice free areas.  718 FZUS53 KDLH 181823 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 123 PM CDT Mon May 18 2026 For waters within five nautical miles of shore on Lake Superior. Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. LSZ140-182200- Grand Portage to Grand Marais MN- 123 PM CDT Mon May 18 2026 .REST OF TODAY...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 3 feet. .TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots late in the evening, then increasing to 30 knots after midnight decreasing to 25 knots early in the morning. Slight chance of rain showers in the evening. Slight chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 3 feet building to 4 to 6 feet in the late evening and overnight. Waves occasionally to 8 feet. A small craft advisory may be needed. .TUESDAY...Northwest wind 10 to 15 knots with gusts to around 25 knots easing to 5 to 10 knots with gusts to around 20 knots in the afternoon. Chance of rain showers in the morning. Waves 4 to 6 feet subsiding to 1 to 2 feet. Waves occasionally to 8 feet. A small craft advisory may be needed. .TUESDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 2 feet. $$ LSZ141-182200- Grand Marais to Taconite Harbor MN- 123 PM CDT Mon May 18 2026 .REST OF TODAY...East wind 5 knots. Mostly cloudy. Waves 1 to 3 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 25 knots in the late evening and early morning decreasing to 20 knots. Chance of rain showers in the evening. Slight chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .TUESDAY...Northwest wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Chance of rain showers in the morning. Chance of sprinkles in the afternoon. 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. $$ LSZ142-182200- Taconite Harbor to Silver Bay Harbor MN- 123 PM CDT Mon May 18 2026 .REST OF TODAY...Northeast wind 5 knots. Mostly cloudy. Waves 1 to 3 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots increasing to 25 knots after midnight. Chance of rain showers in the evening. Slight chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 2 feet building to 2 to 4 feet after midnight. A small craft advisory may be needed. .TUESDAY...West wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Chance of rain showers in the morning. Chance of sprinkles in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon. A small craft advisory may be needed. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 2 feet. $$ LSZ143-182200- Silver Bay Harbor to Two Harbors MN- 123 PM CDT Mon May 18 2026 .REST OF TODAY...East wind 5 knots becoming northeast late. Mostly cloudy. Waves 1 to 3 feet. .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. Chance of rain showers in the evening. 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...West wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Chance of rain showers in the morning. Chance of sprinkles in the afternoon. 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 clearing. Waves 1 to 2 feet. $$ LSZ144-182200- Two Harbors to Duluth MN- 123 PM CDT Mon May 18 2026 .REST OF TODAY...East wind 5 knots becoming northeast late. Mostly cloudy. Waves 1 to 2 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots increasing to 25 knots after midnight, then decreasing to 20 knots early in the morning. Rain showers likely in the evening. Chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 2 feet building to 2 to 4 feet in the late evening and overnight. A small craft advisory may be needed. .TUESDAY...West wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Chance of rain showers in the morning. Waves 2 to 4 feet. .TUESDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots after midnight. Mostly cloudy in the evening then clearing. Waves 1 to 2 feet. $$ LSZ145-182200- Duluth MN to Port Wing WI- 123 PM CDT Mon May 18 2026 .REST OF TODAY...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet. .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. Chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 2 feet building to 2 to 4 feet in the late evening and overnight. A small craft advisory may be needed. .TUESDAY...West 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. .TUESDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots becoming west 5 knots after midnight. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 3 feet. $$ LSZ146-182200- Port Wing to Sand Island WI- 123 PM CDT Mon May 18 2026 .REST OF TODAY...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet. .TONIGHT...Northeast wind 10 to 15 knots easing to 10 knots early in the morning. Gusts up to 20 knots late in the evening increasing to 25 knots, then decreasing to 20 knots early in the morning. Rain showers likely in the evening. Chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 2 feet building to 3 to 5 feet after midnight. A small craft advisory may be needed. .TUESDAY...Northwest wind 5 to 10 knots becoming west with gusts to around 20 knots in the late morning and afternoon. Chance of rain showers in the morning. Chance of sprinkles in the afternoon. Waves 3 to 5 feet subsiding to 1 to 3 feet late in the afternoon. A small craft advisory may be needed. .TUESDAY NIGHT...West wind 5 to 10 knots. Mostly cloudy in the evening then clearing. Waves 1 to 2 feet. $$ LSZ147-182200- Sand Island to Bayfield WI- 123 PM CDT Mon May 18 2026 .REST OF TODAY...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 25 knots in the late evening and early morning decreasing to 20 knots. Rain showers likely in the evening. Chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 3 feet building to 3 to 5 feet after midnight. A small craft advisory may be needed. .TUESDAY...North wind 5 to 10 knots becoming west with gusts to around 20 knots in the late morning and afternoon. Chance of rain showers in the morning. Chance of sprinkles in the afternoon. Waves 3 to 5 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. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 2 feet. $$ LSZ150-182200- Outer Apostle Islands Beyond 5 NM from Mainland- 123 PM CDT Mon May 18 2026 .REST OF TODAY...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 3 feet. .TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots late in the evening, then increasing to 30 knots after midnight decreasing to 25 knots early in the morning. Chance of rain showers in the evening. Chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 3 feet building to 5 to 8 feet. Waves occasionally to 10 feet. A small craft advisory may be needed. .TUESDAY...North wind 5 to 10 knots with gusts to around 20 knots becoming west 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Chance of rain showers in the morning. Chance of sprinkles in the afternoon. Waves 4 to 7 feet subsiding to 2 to 4 feet late in the afternoon. Waves occasionally to 9 feet. A small craft advisory may be needed. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 3 feet. $$ LSZ121-182200- Chequamegon Bay-Bayfield to Oak Point WI- 123 PM CDT Mon May 18 2026 .REST OF TODAY...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 3 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the late evening and overnight. Rain showers likely in the evening. Chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 3 feet building to 4 to 7 feet. Waves occasionally to 10 feet. A small craft advisory may be needed. .TUESDAY...Northwest wind 5 to 10 knots becoming west 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Chance of rain showers in the morning. Chance of sprinkles in the afternoon. Waves 1 to 2 feet. .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 foot or less. $$ LSZ148-182200- Oak Point to Saxon Harbor WI- 123 PM CDT Mon May 18 2026 .REST OF TODAY...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 3 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 25 knots in the late evening and early morning decreasing to 20 knots. Rain showers likely in the evening. Chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 3 feet building to 5 to 8 feet. Waves occasionally to 10 feet. A small craft advisory may be needed. .TUESDAY...Northwest wind 5 to 10 knots becoming west 10 to 15 knots with gusts to around 20 knots in the afternoon. Chance of rain showers in the morning. Chance of sprinkles in the afternoon. Waves 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late evening and overnight. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH  745 FZUS53 KGRR 181823 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 223 PM EDT Mon May 18 2026 For waters within five nautical miles of shore on Lake Michigan LMZ849-190800- Pentwater to Manistee MI- 223 PM EDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY EVENING... .THROUGH EARLY EVENING...South winds 20 to 25 knots. Mostly cloudy with a chance of showers and thunderstorms. Waves 3 to 5 feet. .TONIGHT...South winds to 30 knots. Partly cloudy in the evening, then rain showers likely and a chance of thunderstorms after midnight. Patchy fog after midnight. Waves 4 to 6 feet. .TUESDAY...South winds to 30 knots. Rain showers likely and a chance of thunderstorms. Patchy fog. Waves 5 to 7 feet. .TUESDAY NIGHT...West winds 10 to 20 knots veering north in the late evening and overnight. Partly cloudy. Waves 3 to 5 feet. .WEDNESDAY...North winds 15 to 25 knots. Sunny. Waves 2 to 3 feet. .WEDNESDAY NIGHT...Northeast winds 10 to 20 knots decreasing to 5 to 10 knots after midnight. Partly cloudy. Waves 1 to 3 feet. .THURSDAY...Northeast winds 5 to 10 knots backing north 10 to 15 knots early in the afternoon. Mostly sunny. Waves around 1 foot. .FRIDAY...East winds 10 to 20 knots. Mostly cloudy. Waves 1 foot or less. .SATURDAY...Northeast winds 10 to 15 knots. Mostly cloudy with a chance of rain showers. Waves 1 foot or less. $$ LMZ848-190800- Whitehall to Pentwater MI- 223 PM EDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY EVENING... .THROUGH EARLY EVENING...South winds 20 to 25 knots. Mostly cloudy with a chance of thunderstorms and a slight chance of rain showers. Waves 4 to 6 feet. .TONIGHT...South winds to 30 knots. Mostly cloudy with a chance of showers and thunderstorms. Patchy fog after midnight. Waves 4 to 6 feet. .TUESDAY...South winds to 30 knots. Rain showers likely and a chance of thunderstorms. Patchy fog. Waves 5 to 7 feet. .TUESDAY NIGHT...West winds 20 to 25 knots veering north 15 to 20 knots in the late evening and overnight. Partly cloudy. Waves 3 to 5 feet. .WEDNESDAY...North winds 15 to 25 knots. Sunny. Waves 2 to 4 feet. .WEDNESDAY NIGHT...North winds 15 to 25 knots veering northeast 10 to 15 knots in the late evening and overnight. Partly cloudy. Waves 2 to 3 feet. .THURSDAY...Northeast winds 10 to 15 knots backing north early in the afternoon. Mostly sunny. Waves around 1 foot. .FRIDAY...East winds 15 to 20 knots. Mostly cloudy. Waves around 1 foot. .SATURDAY...Northeast winds 15 to 20 knots. Mostly cloudy. Waves 1 foot or less. $$ LMZ847-190800- Grand Haven to Whitehall MI- 223 PM EDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY EVENING... .THROUGH EARLY EVENING...South winds 20 to 25 knots. Rain showers likely and a chance of thunderstorms. Waves 3 to 5 feet. .TONIGHT...South winds to 30 knots. Mostly cloudy with a chance of showers and thunderstorms. Patchy fog after midnight. Waves 4 to 6 feet. .TUESDAY...Southwest winds to 30 knots. Rain showers likely and a chance of thunderstorms. Patchy fog. Waves 5 to 7 feet. .TUESDAY NIGHT...Northwest winds 15 to 25 knots veering north after midnight. Mostly cloudy. Waves 3 to 5 feet. .WEDNESDAY...North winds 15 to 25 knots. Sunny. Waves 2 to 4 feet. .WEDNESDAY NIGHT...North winds 15 to 25 knots veering northeast 10 to 15 knots after midnight. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. .THURSDAY...East winds 10 to 15 knots backing north early in the afternoon. Mostly sunny. Waves 1 foot or less. .FRIDAY...East winds 15 to 20 knots. Mostly cloudy. Waves around 1 foot. .SATURDAY...East winds 15 to 20 knots backing northeast 10 to 15 knots early in the afternoon. Mostly cloudy with a chance of rain showers. Waves 1 foot or less. $$ LMZ846-190800- Holland to Grand Haven MI- 223 PM EDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY EVENING... .THROUGH EARLY EVENING...South winds 20 to 25 knots. Mostly cloudy with a chance of showers and thunderstorms. Waves 3 to 5 feet. .TONIGHT...South winds to 30 knots. Mostly cloudy with a chance of showers and thunderstorms. Patchy fog after midnight. Waves 3 to 5 feet. .TUESDAY...Southwest winds to 30 knots. Rain showers likely and a chance of thunderstorms. Patchy fog. Waves 5 to 7 feet. .TUESDAY NIGHT...Northwest winds 15 to 20 knots veering north after midnight. Mostly cloudy. Waves 2 to 4 feet. .WEDNESDAY...North winds 15 to 25 knots. Mostly sunny. Waves 3 to 5 feet. .WEDNESDAY NIGHT...North winds 15 to 25 knots veering northeast around 15 knots after midnight. Partly cloudy. Waves 2 to 4 feet. .THURSDAY...Northeast winds 10 to 15 knots. Mostly sunny. Waves around 1 foot. .FRIDAY...East winds 15 to 20 knots. Mostly cloudy. Waves around 1 foot. .SATURDAY...East winds 15 to 20 knots backing north 10 to 15 knots early in the afternoon. Mostly cloudy with a chance of rain showers. Waves 1 foot or less. $$ LMZ845-190800- South Haven to Holland MI- 223 PM EDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH TUESDAY EVENING... .THROUGH EARLY EVENING...South winds around 20 knots. Rain showers likely and a chance of thunderstorms. Waves 2 to 4 feet. .TONIGHT...South winds 15 to 25 knots. Mostly cloudy with a chance of showers and thunderstorms. Waves 2 to 4 feet. .TUESDAY...Southwest winds to 30 knots. Partly sunny with a chance of showers and thunderstorms. Waves 4 to 6 feet. .TUESDAY NIGHT...Northwest winds 15 to 20 knots veering north after midnight. Mostly cloudy. Waves 2 to 4 feet. .WEDNESDAY...North winds 15 to 25 knots. Mostly sunny. Waves 3 to 5 feet. .WEDNESDAY NIGHT...North winds 15 to 25 knots veering northeast around 15 knots after midnight. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. .THURSDAY...Northeast winds 10 to 15 knots. Mostly sunny. Waves around 1 foot. .FRIDAY...East winds 15 to 20 knots. Mostly cloudy. Waves 1 foot or less. .SATURDAY...Northeast winds 10 to 15 knots backing northwest early in the afternoon. Mostly cloudy with a chance of rain showers. Waves less than 1 foot. $$ LMZ844-190800- St Joseph to South Haven MI- 223 PM EDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH TUESDAY EVENING... .THROUGH EARLY EVENING...Southwest winds around 20 knots. Rain showers likely and a chance of thunderstorms. Waves 2 to 3 feet. .TONIGHT...South winds 15 to 25 knots. Mostly cloudy with a chance of showers and thunderstorms. Waves 2 to 4 feet. .TUESDAY...Southwest winds 20 to 25 knots. Partly sunny with a chance of showers and thunderstorms. Waves 3 to 5 feet. .TUESDAY NIGHT...Northwest winds around 15 knots veering north after midnight. Mostly cloudy with rain showers likely and a chance of thunderstorms. Waves 2 to 4 feet. .WEDNESDAY...North winds 15 to 25 knots. Mostly sunny. Waves 3 to 5 feet. .WEDNESDAY NIGHT...North winds 15 to 25 knots veering northeast 10 to 15 knots in the late evening and overnight. Partly cloudy. Waves 3 to 5 feet subsiding to 2 to 3 feet after midnight. .THURSDAY...Northeast winds 10 to 15 knots. Mostly sunny. Waves 1 to 2 feet. .FRIDAY...East winds 15 to 20 knots. Mostly cloudy with a chance of rain showers. Waves around 1 foot. .SATURDAY...East winds 10 to 15 knots backing northwest early in the afternoon. Mostly cloudy. Waves less than 1 foot. $$  943 FZUS53 KDLH 181836 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 136 PM 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. LSZ140-182200- Grand Portage to Grand Marais MN- 136 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots early in the afternoon. Mostly cloudy. Waves 1 to 3 feet. .TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots late in the evening, then increasing to 30 knots after midnight decreasing to 25 knots early in the morning. Slight 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 3 to 5 feet in the late evening and overnight. .TUESDAY...Northwest wind 10 to 15 knots with gusts to around 25 knots easing to 5 to 10 knots with gusts to around 20 knots in the afternoon. Chance of rain showers in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon. .TUESDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 2 feet. $$ LSZ141-182200- Grand Marais to Taconite Harbor MN- 136 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Southwest wind 5 knots becoming northeast late. Mostly cloudy. Waves 1 to 3 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 25 knots in the late evening and early morning decreasing to 20 knots. Chance of rain showers in the evening. Slight chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .TUESDAY...Northwest wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Chance of rain showers in the morning. Chance of sprinkles in the afternoon. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late morning and afternoon. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 2 feet. $$ LSZ142-182200- Taconite Harbor to Silver Bay Harbor MN- 136 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING THROUGH TUESDAY AFTERNOON... .REST OF TODAY...East wind 5 knots becoming northeast late. Mostly cloudy. Waves 1 to 3 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots increasing to 25 knots after midnight. 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. .TUESDAY...West wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Chance of rain showers in the morning. Chance of sprinkles in the afternoon. 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. $$ LSZ143-182200- Silver Bay Harbor to Two Harbors MN- 136 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Southwest wind 5 knots becoming northeast late. Mostly cloudy. Waves 1 to 3 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots late in the evening increasing to 25 knots, then decreasing to 20 knots early in the morning. Chance of rain showers in the evening. Chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 2 feet building to 2 to 4 feet after midnight. .TUESDAY...West wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Chance of rain showers in the morning. Chance of sprinkles in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Mostly cloudy in the evening then clearing. Waves 1 to 2 feet. $$ LSZ144-182200- Two Harbors to Duluth MN- 136 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM CDT THIS EVENING THROUGH TUESDAY MORNING... .REST OF TODAY...Northwest wind 5 knots becoming northeast late. Mostly cloudy. Waves 1 to 2 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots increasing to 25 knots after midnight, then decreasing to 20 knots early in the morning. Rain showers likely in the evening. Chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 2 feet building to 2 to 4 feet after midnight. .TUESDAY...West 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 subsiding to 1 to 3 feet in the afternoon. .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 clearing. Waves 1 to 2 feet. $$ LSZ145-182200- Duluth MN to Port Wing WI- 136 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM CDT THIS EVENING THROUGH TUESDAY MORNING... .REST OF TODAY...North wind 5 knots becoming northeast late. Mostly cloudy. Waves 1 to 2 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots late in the evening increasing to 25 knots, then decreasing to 20 knots early in the morning. Rain showers likely in the evening. Chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .TUESDAY...West wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Chance of rain showers in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TUESDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots becoming west 5 knots after midnight. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 2 feet. $$ LSZ146-182200- Port Wing to Sand Island WI- 136 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM CDT THIS EVENING THROUGH TUESDAY MORNING... .REST OF TODAY...North wind 5 knots becoming northeast late. Mostly cloudy. Waves 1 to 2 feet. .TONIGHT...Northeast wind 10 to 15 knots easing to 10 knots early in the morning. 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. Chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 2 feet building to 3 to 5 feet after midnight. .TUESDAY...Northwest wind 5 to 10 knots becoming west with gusts to around 20 knots in the late morning and afternoon. Chance of rain showers in the morning. Chance of sprinkles in the afternoon. Waves 2 to 4 feet. .TUESDAY NIGHT...West wind 5 to 10 knots. Mostly cloudy in the evening then clearing. Waves 1 to 2 feet. $$ LSZ147-182200- Sand Island to Bayfield WI- 136 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM CDT THIS EVENING THROUGH TUESDAY MORNING... .REST OF TODAY...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 25 knots in the late evening and early morning decreasing to 20 knots. Rain showers likely in the evening. Chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 2 feet building to 3 to 5 feet after midnight. .TUESDAY...North wind 5 to 10 knots becoming west with gusts to around 20 knots in the late morning and afternoon. Chance of rain showers in the morning. Chance of sprinkles in the afternoon. Waves 2 to 4 feet. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 3 feet. $$ LSZ150-182200- Outer Apostle Islands Beyond 5 NM from Mainland- 136 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 3 feet. .TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots late in the evening, then increasing to 30 knots after midnight decreasing to 25 knots early in the morning. Chance of rain showers in the evening. Chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 2 feet building to 4 to 6 feet. Waves occasionally to 8 feet. .TUESDAY...North wind 5 to 10 knots with gusts to around 20 knots becoming west 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Chance of rain showers in the morning. Chance of sprinkles in the afternoon. Waves 4 to 6 feet subsiding to 2 to 4 feet late in the afternoon. Waves occasionally to 7 feet. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late evening and overnight. $$ LSZ121-182200- Chequamegon Bay-Bayfield to Oak Point WI- 136 PM CDT Mon May 18 2026 .REST OF TODAY...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 foot or less. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the late evening and overnight. Rain showers likely in the evening. Chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 2 feet. .TUESDAY...Northwest wind 5 to 10 knots becoming west 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Chance of rain showers in the morning. Chance of sprinkles in the afternoon. Waves 1 foot or less. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 foot or less. $$ LSZ148-182200- Oak Point to Saxon Harbor WI- 136 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING THROUGH TUESDAY AFTERNOON... .REST OF TODAY...East wind 5 knots becoming northeast late. Mostly cloudy. Waves 1 to 3 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 25 knots in the late evening and early morning decreasing to 20 knots. Rain showers likely in the evening. 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. .TUESDAY...Northwest wind 5 to 10 knots becoming west 10 to 15 knots with gusts to around 20 knots in the afternoon. Chance of rain showers in the morning. Chance of sprinkles in the afternoon. Waves 2 to 4 feet. .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 3 feet. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH  088 FZUS53 KGRB 181857 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 157 PM CDT Mon May 18 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-182200- Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 157 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING... .THIS AFTERNOON...S wind 5 to 10 kts backing SE early in the afternoon. Waves 2 ft or less. A slight chance of showers and thunderstorms. .TONIGHT...S wind 10 to 15 kts. Waves 1 to 3 ft. Patchy fog. a chance of showers and thunderstorms. .TUESDAY...SW wind 15 to 25 kts veering NW 10 to 15 kts early in the afternoon. Waves 2 to 4 ft. A chance of showers in the morning. .TUESDAY NIGHT...NW wind 10 to 15 kts. Waves 1 to 3 ft. Mostly cloudy in the evening then becoming partly cloudy. $$ LMZ541-182200- Rock Island Passage to Sturgeon Bay WI- 157 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT... .THIS AFTERNOON...S wind 5 to 10 kts. Waves 3 to 5 ft. Patchy fog. a slight chance of showers and thunderstorms. .TONIGHT...S wind 10 to 15 kts. Waves 2 to 4 ft building to 4 to 7 ft after midnight. Patchy dense fog in the evening. Areas of dense fog after midnight. a chance of showers in the evening. A chance of thunderstorms. Rain showers after midnight. .TUESDAY...SW wind 15 to 25 kts veering NW 10 to 20 kts early in the afternoon. Waves 4 to 7 ft. Patchy fog in the morning. a chance of showers. .TUESDAY NIGHT...NW wind 10 to 15 kts. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Mostly cloudy in the evening then becoming partly cloudy. $$ LMZ542-543-182200- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 157 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT... .THIS AFTERNOON...S wind 10 to 15 kts. Waves 3 to 5 ft. Patchy fog. a slight chance of showers and thunderstorms. .TONIGHT...S wind 10 to 15 kts. Waves 2 to 4 ft building to 4 to 7 ft after midnight. Patchy fog. a chance of showers and thunderstorms. .TUESDAY...SW wind 15 to 25 kts veering W early in the afternoon. Waves 4 to 7 ft. Patchy fog in the morning. a chance of showers in the morning. .TUESDAY NIGHT...NW wind 10 to 15 kts. Waves 2 to 4 ft. Mostly cloudy in the evening then becoming partly cloudy. $$ See Lake Michigan Open Lake Forecast for Wednesday through Friday. Wave height forecast is for ice free areas.