608 FZUS53 KDLH 191000 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 500 AM CDT Tue May 19 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. LSZ140-191600- Grand Portage to Grand Marais MN- 500 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... .TODAY...North wind 10 to 15 knots with gusts to around 20 knots becoming northwest 5 to 10 knots with gusts to around 20 knots in the late morning and afternoon. Patchy fog early in the morning. Chance of rain showers early in the morning. Chance of sprinkles in the late morning and afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots becoming west late in the morning, then becoming southwest 10 to 15 knots with gusts to around 20 knots in the afternoon. Sunny. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots after midnight. Mostly clear. Waves 1 to 2 feet. $$ LSZ141-191600- Grand Marais to Taconite Harbor MN- 500 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... .TODAY...West wind 5 to 10 knots. Gusts up to 20 knots late in the afternoon. Patchy fog early in the morning. Chance of rain showers early in the morning. Chance of sprinkles in the afternoon. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late morning and afternoon. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots becoming south in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...South wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. $$ LSZ142-191600- Taconite Harbor to Silver Bay Harbor MN- 500 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... .TODAY...West wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Patchy fog early in the morning. Chance of rain showers early in the morning. Chance of sprinkles in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots becoming south in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Northeast wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. $$ LSZ143-191600- Silver Bay Harbor to Two Harbors MN- 500 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... .TODAY...West wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Patchy fog early in the morning. Chance of rain showers early in the morning. Chance of sprinkles in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TONIGHT...Northwest wind 5 to 10 knots. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots becoming south in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Northeast wind 5 knots until early morning becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. $$ LSZ144-191600- Two Harbors to Duluth MN- 500 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CDTTHIS MORNING... .TODAY...West wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Patchy fog early in the morning. Chance of rain showers early in the morning. Chance of sprinkles in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...West wind 5 knots becoming southeast in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Northeast wind 5 knots. Mostly clear. Waves 1 foot or less. $$ LSZ145-191600- Duluth MN to Port Wing WI- 500 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... .TODAY...West wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Patchy fog early in the morning. Chance of rain showers early in the morning. Chance of sprinkles in the afternoon. Waves 1 to 3 feet. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...West wind 5 knots becoming east in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...East wind 5 knots. Mostly clear. Waves 1 foot or less. $$ LSZ146-191600- Port Wing to Sand Island WI- 500 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... .TODAY...West wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Patchy fog early in the morning. Chance of rain showers early in the morning. Chance of sprinkles in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TONIGHT...Northwest wind 5 to 10 knots. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...West wind 5 knots early in the morning becoming variable 10 knots or less, then becoming southeast 5 knots late in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...East wind 5 knots in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. $$ LSZ147-191600- Sand Island to Bayfield WI- 500 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... .TODAY...West wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Patchy fog early in the morning. Chance of rain showers early in the morning. Chance of sprinkles in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TONIGHT...Northwest wind 5 to 10 knots. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots early in the morning becoming variable 10 knots or less, then becoming southeast 5 knots in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Southeast wind 5 knots. Mostly clear. Waves 1 foot or less. $$ LSZ150-191600- Outer Apostle Islands Beyond 5 NM from Mainland- 500 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM CDT THIS AFTERNOON... .TODAY...Northwest wind 5 to 10 knots becoming west 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Patchy fog early in the morning. Chance of rain showers early in the morning. Chance of sprinkles in the afternoon. Waves 3 to 5 feet subsiding to 1 to 3 feet late in the afternoon. Waves occasionally to 7 feet. .TONIGHT...Northwest wind 10 to 15 knots easing to 5 to 10 knots in the late evening and overnight. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots becoming west late in the morning, then becoming southeast in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Southeast wind 5 knots. Mostly clear. Waves 1 foot or less. $$ LSZ121-191600- Chequamegon Bay-Bayfield to Oak Point WI- 500 AM CDT Tue May 19 2026.TODAY...Northwest wind 5 knots becoming west 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Patchy fog early in the morning. Chance of rain showers early in the morning. Chance of sprinkles in the afternoon. Waves 1 foot or less. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 foot or less. .WEDNESDAY...Northwest wind 5 knots becoming east in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...East wind 5 knots becoming south after midnight. Partly cloudy. Waves 1 foot or less. $$ LSZ148-191600- Oak Point to Saxon Harbor WI- 500 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM CDT THIS AFTERNOON... .TODAY...Northwest wind 5 to 10 knots becoming west 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Patchy fog early in the morning. Chance of rain showers early in the morning. Chance of sprinkles in the afternoon. Waves 2 to 4 feet. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 3 feet. .WEDNESDAY...Northwest wind 5 knots becoming east in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Southeast wind 5 knots becoming south after midnight. Partly cloudy. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH  479 FZUS53 KMKX 191010 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 510 AM CDT Tue May 19 2026 For waters within five nautical miles of shore on Lake Michigan LMZ643-191600- Sheboygan to Port Washington WI- 510 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... .TODAY...South wind 15 to 25 knots veering southwest 15 to 20 knots late in the morning, then veering west early in the afternoon becoming west 15 to 20 knots late in the afternoon. Patchy fog in the morning. chance of showers and slight chance of thunderstorms in the morning, then slight chance of showers late in the morning. Chance of showers early in the afternoon. Waves 4 to 6 feet subsiding to 3 to 4 feet. .TONIGHT...Northwest wind 15 to 20 knots easing to 10 to 15 knots late in the evening, then becoming northwest 10 to 15 knots after midnight veering north early in the morning. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and overnight. .WEDNESDAY...North wind 10 to 15 knots veering northeast late in the afternoon. Mostly sunny. Waves 1 to 2 feet building to 2 to 4 feet in the afternoon. .WEDNESDAY NIGHT...Northeast wind 10 to 15 knots. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and early morning, then building to 2 to 4 feet early in the morning. $$ LMZ644-191600- Port Washington to North Point Light WI- 510 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... .TODAY...Southwest wind 15 to 25 knots easing to 10 to 20 knots late in the morning, then veering west 15 to 20 knots in the afternoon. Chance of showers and slight chance of thunderstorms in the morning, then slight chance of showers late in the morning. Chance of showers early in the afternoon. Waves 3 to 5 feet subsiding to 1 to 2 feet. .TONIGHT...Northwest wind 15 to 20 knots easing to 10 to 15 knots late in the evening, then rising to 15 to 20 knots after midnight becoming north 10 to 15 knots early in the morning. Partly cloudy. Waves 1 to 2 feet. .WEDNESDAY...North wind 10 to 15 knots veering northeast in the afternoon. Mostly sunny. Waves 1 to 2 feet building to 2 to 4 feet in the afternoon. .WEDNESDAY NIGHT...Northeast wind 10 to 15 knots rising to 15 to 20 knots early in the morning. Partly cloudy. Waves 2 to 4 feet. $$ LMZ645-191600- North Point Light to Wind Point WI- 510 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... .TODAY...Southwest wind 15 to 25 knots easing to 10 to 20 knots late in the morning, then veering west 15 to 20 knots in the afternoon. Chance of showers and slight chance of thunderstorms through the day. Waves 3 to 4 feet subsiding to 1 to 2 feet late in the afternoon. .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots becoming northwest 10 to 15 knots late in the evening, then rising to 15 to 20 knots after midnight veering north early in the morning. Partly cloudy. Waves 1 to 2 feet building to 2 to 4 feet early in the morning. .WEDNESDAY...North wind 10 to 15 knots veering northeast late in the morning, then rising to 15 to 20 knots early in the afternoon easing to 10 to 15 knots late in the afternoon. Mostly sunny. Waves 2 to 4 feet. .WEDNESDAY NIGHT...Northeast wind 15 to 20 knots. Partly cloudy. Waves 3 to 4 feet. $$ LMZ646-191600- Wind Point WI to Winthrop Harbor IL- 510 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... .TODAY...Southwest wind 15 to 20 knots becoming west 10 to 15 knots late in the afternoon. Gusts up to 30 knots decreasing to 20 knots late in the afternoon. Chance of showers and slight chance of thunderstorms through the day. Waves 3 to 4 feet subsiding to 1 to 2 feet late in the afternoon. .TONIGHT...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 with gusts to around 20 knots in the afternoon. Mostly sunny. Waves 2 to 4 feet. .WEDNESDAY NIGHT...Northeast wind 15 to 20 knots. Partly cloudy. Waves 3 to 4 feet. $$ See Lake Michigan Open Waters Forecast for Thursday through Saturday.