FZUS53 KDLH 171000 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 500 AM CDT Wed Jun 17 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. LSZ140-171600- Grand Portage to Grand Marais MN- 500 AM CDT Wed Jun 17 2026 .TODAY...Southeast wind 5 knots becoming northeast 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Slight chance of rain showers early in the afternoon. Chance of rain showers late in the afternoon. Waves 1 to 2 feet. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming northwest 5 knots early in the morning. Slight chance of rain showers. Waves 1 to 2 feet. .THURSDAY...West wind 5 to 10 knots. Slight chance of rain showers in the morning, then chance of rain showers in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ141-171600- Grand Marais to Taconite Harbor MN- 500 AM CDT Wed Jun 17 2026 .TODAY...East wind 10 to 15 knots with gusts to around 20 knots. Slight chance of rain showers in the morning. Chance of rain showers in the afternoon. Waves 1 to 2 feet. .TONIGHT...Northeast wind 5 to 10 knots with gusts to around 20 knots becoming northwest early in the morning. Chance of rain showers in the evening. Waves 1 to 2 feet. .THURSDAY...Northwest wind 5 to 10 knots. Slight chance of rain showers in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ142-171600- Taconite Harbor to Silver Bay Harbor MN- 500 AM CDT Wed Jun 17 2026 .TODAY...Northeast wind 10 to 15 knots with gusts to around 25 knots. Chance of rain showers in the morning, then rain showers likely in the afternoon. Waves 1 to 2 feet. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 25 knots becoming north 5 knots after midnight, then becoming northwest early in the morning. Chance of rain showers in the evening. Waves 1 to 2 feet. .THURSDAY...Northwest wind 5 knots. Slight chance of rain showers in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...Northwest wind 5 knots. Mostly clear. Waves 1 foot or less. $$ LSZ143-171600- Silver Bay Harbor to Two Harbors MN- 500 AM CDT Wed Jun 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM CDT THIS MORNING THROUGH THIS EVENING... .TODAY...Northeast wind 5 knots rising to 15 to 20 knots with gusts to around 25 knots in the late morning and afternoon. Rain showers likely in the morning, then rain showers in the afternoon. Waves 1 to 2 feet building to 2 to 4 feet in the afternoon. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 25 knots becoming north 5 knots after midnight, then becoming northwest early in the morning. Chance of rain showers in the evening, then slight chance of rain showers after midnight. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late evening and overnight. .THURSDAY...West wind 5 to 10 knots. Slight chance of rain showers in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...Northwest wind 5 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ144-171600- Two Harbors to Duluth MN- 500 AM CDT Wed Jun 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM CDT THIS MORNING THROUGH LATE TONIGHT... .TODAY...Northeast wind 15 to 20 knots with gusts to around 30 knots. Chance of rain showers early in the morning, then rain showers in the late morning and afternoon. Waves 1 to 2 feet building to 2 to 4 feet in the afternoon. .TONIGHT...Northeast wind 15 to 20 knots with gusts to around 30 knots becoming north 5 knots after midnight, then becoming northwest early in the morning. Chance of rain showers in the evening, then slight chance of rain showers after midnight. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. .THURSDAY...West wind 5 to 10 knots. Slight chance of rain showers in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves 1 foot or less. $$ LSZ145-171600- Duluth MN to Port Wing WI- 500 AM CDT Wed Jun 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM CDT THIS MORNING THROUGH LATE TONIGHT... .TODAY...East wind 15 to 20 knots with gusts to around 25 knots becoming northeast with gusts to around 30 knots late in the afternoon. Rain showers likely early in the morning, then rain showers in the late morning and early afternoon. Rain showers likely late in the afternoon. Waves 1 to 2 feet building to 2 to 4 feet in the afternoon. .TONIGHT...Northeast wind 15 to 20 knots with gusts to around 30 knots becoming north 5 knots after midnight, then becoming west early in the morning. Chance of rain showers in the evening, then slight chance of rain showers after midnight. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. .THURSDAY...West wind 5 to 10 knots. Slight chance of rain showers in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...West wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ146-171600- Port Wing to Sand Island WI- 500 AM CDT Wed Jun 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM CDT THIS MORNING THROUGH THIS EVENING... .TODAY...East wind 10 to 15 knots with gusts to around 25 knots. Chance of rain showers early in the morning, then rain showers likely late in the morning. Rain showers in the afternoon. Waves 1 to 2 feet building to 1 to 3 feet late in the afternoon. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 25 knots becoming north 5 knots after midnight, then becoming west early in the morning. Chance of rain showers in the evening, then slight chance of rain showers after midnight. Waves 1 to 3 feet. .THURSDAY...West wind 5 to 10 knots. Partly sunny. Waves 1 foot or less. .THURSDAY NIGHT...West wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ147-171600- Sand Island to Bayfield WI- 500 AM CDT Wed Jun 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM CDT THIS AFTERNOON THROUGH THIS EVENING... .TODAY...South wind 5 knots becoming east 10 to 15 knots with gusts to around 25 knots in the late morning and afternoon. Slight chance of rain showers early in the morning, then chance of rain showers late in the morning. Rain showers in the afternoon. Waves 1 to 2 feet. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming north 5 to 10 knots after midnight, then becoming northwest early in the morning. Chance of rain showers through the night. Waves 1 to 2 feet. .THURSDAY...West wind 5 to 10 knots. Partly sunny. Waves 1 foot or less. .THURSDAY NIGHT...West wind 5 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ150-171600- Outer Apostle Islands Beyond 5 NM from Mainland- 500 AM CDT Wed Jun 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM CDT THIS AFTERNOON THROUGH THIS EVENING... .TODAY...South wind 5 knots becoming east 10 to 15 knots with gusts to around 25 knots in the late morning and afternoon. Slight chance of rain showers early in the morning, then chance of rain showers late in the morning. Rain showers likely in the afternoon. Waves 1 to 3 feet. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 25 knots becoming north 5 to 10 knots after midnight, then becoming northwest early in the morning. Chance of rain showers in the evening, then slight chance of rain showers after midnight. Waves 1 to 3 feet subsiding to 1 to 2 feet after midnight. .THURSDAY...West wind 5 to 10 knots. Mostly sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...West wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ121-171600- Chequamegon Bay-Bayfield to Oak Point WI- 500 AM CDT Wed Jun 17 2026 .TODAY...South wind 5 to 10 knots becoming east 10 to 15 knots with gusts to around 25 knots late in the afternoon. Chance of rain showers early in the morning, then rain showers likely late in the morning. Rain showers in the afternoon. Waves 1 to 3 feet. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming north 5 knots after midnight, then becoming northwest early in the morning. Chance of rain showers through the night. Waves 1 to 3 feet subsiding to 1 foot or less after midnight. .THURSDAY...West wind 5 to 10 knots. Slight chance of rain showers in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...West wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ148-171600- Oak Point to Saxon Harbor WI- 500 AM CDT Wed Jun 17 2026 .TODAY...South wind 5 knots becoming east with gusts to around 25 knots in the late morning and early afternoon, then rising to 10 to 15 knots with gusts to around 25 knots late in the afternoon. Slight chance of rain showers early in the morning, then rain showers likely late in the morning. Rain showers in the afternoon. Waves 1 to 3 feet. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming north 5 to 10 knots after midnight, then becoming northwest early in the morning. Chance of rain showers. Waves 1 to 3 feet subsiding to 1 to 2 feet after midnight. .THURSDAY...West wind 5 to 10 knots. Slight chance of rain showers. Waves 1 foot or less. .THURSDAY NIGHT...West wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH