FZUS53 KDLH 172200 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 500 PM 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. LSZ140-180400- Grand Portage to Grand Marais MN- 500 PM CDT Wed Jun 17 2026 .TONIGHT...Northeast wind 5 to 10 knots becoming west late in the night. Mostly cloudy. 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 and slight chance of thunderstorms in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...Northwest wind 5 to 10 knots. Slight chance of rain showers in the evening. Waves 1 foot or less. .FRIDAY...West wind 5 to 10 knots becoming southwest 10 to 15 knots with gusts to around 20 knots in the afternoon. Mostly sunny. Waves 1 to 2 feet. $$ LSZ141-180400- Grand Marais to Taconite Harbor MN- 500 PM CDT Wed Jun 17 2026 .TONIGHT...Northeast wind 5 to 10 knots becoming northwest after midnight. Slight chance of rain showers early in the evening. Waves 1 to 2 feet. .THURSDAY...West wind 5 to 10 knots. Slight chance of rain showers in the morning, then chance of rain showers in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. .FRIDAY...West wind 5 knots becoming southwest in the afternoon. Sunny in the morning then becoming partly sunny. Waves 1 foot or less. $$ LSZ142-180400- Taconite Harbor to Silver Bay Harbor MN- 500 PM CDT Wed Jun 17 2026 .TONIGHT...Northeast wind 5 to 10 knots becoming west late in the night. Slight chance of rain showers in the evening. Patchy fog in the late evening and overnight. Waves 1 to 2 feet. .THURSDAY...West wind 5 to 10 knots. Slight chance of rain showers through the day. Waves 1 foot or less. .THURSDAY NIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves 1 foot or less. .FRIDAY...West wind 5 knots becoming southwest in the afternoon. Slight chance of rain showers in the afternoon. Waves 1 foot or less. $$ LSZ143-180400- Silver Bay Harbor to Two Harbors MN- 500 PM CDT Wed Jun 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... .TONIGHT...Northeast wind 5 to 10 knots with gusts to around 20 knots in the evening becoming variable 10 knots or less, then becoming west 5 knots late in the night. Chance of rain showers early in the evening, then slight chance of rain showers late in the evening. Patchy fog in the late evening and overnight. Waves 1 to 3 feet. .THURSDAY...West wind 5 to 10 knots. Slight chance of rain showers in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...West wind 5 knots. Mostly clear. Waves 1 foot or less. .FRIDAY...West wind 5 knots becoming southwest in the afternoon. Slight chance of rain showers in the afternoon. Waves 1 foot or less. $$ LSZ144-180400- Two Harbors to Duluth MN- 500 PM CDT Wed Jun 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT THURSDAY... .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming northwest 5 knots after midnight, then becoming west late in the night. Chance of rain showers early in the evening, then slight chance of rain showers late in the evening. Patchy fog in the late evening and overnight. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. .THURSDAY...West wind 5 to 10 knots. Gusts up to 20 knots late in the afternoon. Slight chance of rain showers in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...West wind 5 to 10 knots. Mostly clear. Waves 1 foot or less. .FRIDAY...Southwest wind 5 knots. Chance of rain showers in the afternoon. Waves 1 foot or less. $$ LSZ145-180400- Duluth MN to Port Wing WI- 500 PM CDT Wed Jun 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT THURSDAY... .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 25 knots becoming northwest 5 knots after midnight, then becoming west late in the night. Chance of rain showers early in the evening, then slight chance of rain showers late in the evening. Patchy fog late in the evening. Areas of fog after midnight, then patchy fog late in the night. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. .THURSDAY...West wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...West wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. .FRIDAY...Southwest wind 5 knots. Chance of rain showers in the afternoon. Waves 1 foot or less. $$ LSZ146-180400- Port Wing to Sand Island WI- 500 PM CDT Wed Jun 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... .TONIGHT...Northeast wind 5 to 10 knots with gusts to around 20 knots becoming west late in the night. Chance of rain showers early in the evening, then slight chance of rain showers late in the evening. Patchy fog in the late evening and overnight. Waves 1 to 2 feet. .THURSDAY...West wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...West wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. .FRIDAY...Southwest wind 5 knots. Slight chance of rain showers in the afternoon. Waves 1 foot or less. $$ LSZ147-180400- Sand Island to Bayfield WI- 500 PM CDT Wed Jun 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... .TONIGHT...Northeast wind 5 to 10 knots becoming west late in the night. Chance of rain showers early in the evening, then slight chance of rain showers late in the evening. Patchy fog in the late evening and overnight. Waves 1 to 2 feet. .THURSDAY...West wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...West wind 5 knots. Partly cloudy. Waves 1 foot or less. .FRIDAY...West wind 5 knots. Mostly sunny. Waves 1 foot or less. $$ LSZ150-180400- Outer Apostle Islands Beyond 5 NM from Mainland- 500 PM CDT Wed Jun 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... .TONIGHT...Northeast wind 5 to 10 knots with gusts to around 20 knots becoming west late in the night. Chance of rain showers early in the evening. Patchy fog 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. Mostly sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...West wind 5 to 10 knots. Partly cloudy. Waves 1 to 2 feet. .FRIDAY...West wind 5 knots becoming southwest late in the afternoon. Mostly sunny. Waves 1 foot or less. $$ LSZ121-180400- Chequamegon Bay-Bayfield to Oak Point WI- 500 PM CDT Wed Jun 17 2026 .TONIGHT...Northeast wind 5 to 10 knots with gusts to around 20 knots becoming west late in the night. Chance of rain showers early in the evening, then slight chance of rain showers late in the evening. Patchy fog in the late evening and overnight. Waves 1 to 3 feet subsiding to 1 foot or less in the late evening and overnight. .THURSDAY...West wind 5 to 10 knots. Slight chance of rain showers in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...West wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. .FRIDAY...West wind 5 knots. Slight chance of rain showers in the afternoon. Waves 1 foot or less. $$ LSZ148-180400- Oak Point to Saxon Harbor WI- 500 PM CDT Wed Jun 17 2026 .TONIGHT...Northeast wind 5 to 10 knots with gusts to around 20 knots becoming west late in the night. Chance of rain showers early in the evening, then slight chance of rain showers late in the evening. Patchy fog in the late evening and overnight. 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 in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...West wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. .FRIDAY...West wind 5 knots. Slight chance of rain showers in the afternoon. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH