Nearshore Marine Forecast
Issued by NWS Duluth, MN
Issued by NWS Duluth, MN
582 FZUS53 KDLH 160836 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 336 AM CDT Wed Jul 16 2025 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. LSZ140-141-161615- Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- 336 AM CDT Wed Jul 16 2025 .TODAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Chance of rain showers until late afternoon, then slight chance of rain showers late in the afternoon. Waves 1 to 3 feet. .TONIGHT...Northeast wind 5 to 10 knots becoming north in the late evening and overnight. Slight chance of rain showers through the night. Waves 1 to 2 feet. .THURSDAY...Northwest wind 5 to 10 knots becoming southwest 10 to 15 knots with gusts to around 20 knots in the afternoon. Sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Mostly clear. Waves 1 to 2 feet. $$ LSZ142-161615- Taconite Harbor to Silver Bay Harbor MN- 336 AM CDT Wed Jul 16 2025 .TODAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Chance of rain showers until late afternoon, then slight chance of rain showers late in the afternoon. Waves 1 to 3 feet. .TONIGHT...North wind 5 to 10 knots easing to 5 knots after midnight. Slight chance of rain showers in the evening. Waves 1 to 2 feet. .THURSDAY...North wind 5 knots becoming southwest in the afternoon. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...Southwest wind 5 knots becoming west after midnight. Mostly clear. Waves 1 foot or less. $$ LSZ143-144-161615- Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 336 AM CDT Wed Jul 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Chance of rain showers early in the morning, then rain showers likely late in the morning. Chance of rain showers in the afternoon. Waves 3 to 5 feet. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming north 5 to 10 knots after midnight. Chance of rain showers in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. .THURSDAY...North wind 5 to 10 knots becoming northeast late in the morning, then becoming south in the afternoon. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...Southwest wind 5 knots. Mostly clear. Waves 1 foot or less. $$ LSZ145-146-161615- Duluth MN to Port Wing WI-Port Wing to Sand Island WI- 336 AM CDT Wed Jul 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Rain showers likely in the morning, then chance of rain showers in the afternoon. Waves 3 to 5 feet. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming north 5 to 10 knots after midnight. Chance of rain showers in the evening, then slight chance of rain showers after midnight. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. .THURSDAY...Northwest wind 5 to 10 knots becoming east early in the afternoon, then becoming southeast late in the afternoon. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...South wind 5 knots becoming southwest after midnight. Mostly clear. Waves 1 foot or less. $$ LSZ147-161615- Sand Island to Bayfield WI- 336 AM CDT Wed Jul 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northeast wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots late in the afternoon. Rain showers likely until late afternoon, then chance of rain showers late in the afternoon. Waves 2 to 4 feet. .TONIGHT...Northeast wind 5 to 10 knots with gusts to around 20 knots becoming north after midnight. Chance of rain showers in the evening, then slight chance of rain showers after midnight. Waves 1 to 3 feet. .THURSDAY...Northwest wind 5 knots becoming southwest early in the afternoon, then becoming south late in the afternoon. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...Southwest wind 5 knots. Mostly clear. Waves 1 foot or less. $$ LSZ150-161615- Outer Apostle Islands Beyond 5 NM from Mainland- 336 AM CDT Wed Jul 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Chance of rain showers early in the morning, then rain showers likely late in the morning. Chance of rain showers in the afternoon. Waves 3 to 5 feet. Waves occasionally to 7 feet. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming north 5 to 10 knots after midnight. Chance of rain showers in the evening, then slight chance of rain showers after midnight. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. A small craft advisory may be needed. .THURSDAY...Northwest wind 5 to 10 knots becoming southwest in the afternoon. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...Southwest wind 5 knots. Mostly clear. Waves 1 foot or less. $$ LSZ121-161615- Chequamegon Bay-Bayfield to Oak Point WI- 336 AM CDT Wed Jul 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Slight chance of thunderstorms early in the morning. Rain showers likely until late afternoon, then chance of rain showers late in the afternoon. Waves 2 to 4 feet. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming north 5 to 10 knots early in the morning. Chance of rain showers through the night. Waves 1 to 3 feet. .THURSDAY...North wind 5 knots becoming east late in the afternoon. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...Southeast wind 5 knots becoming southwest in the late evening and overnight. Mostly clear. Waves 1 foot or less. $$ LSZ148-161615- Oak Point to Saxon Harbor WI- 336 AM CDT Wed Jul 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Slight chance of thunderstorms early in the morning. Rain showers likely until late afternoon, then chance of rain showers late in the afternoon. Waves 3 to 5 feet. Waves occasionally to 7 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the evening. Chance of rain showers through the night. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. .THURSDAY...North wind 5 to 10 knots becoming east late in the afternoon. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...South wind 5 knots becoming southwest after midnight. Mostly clear. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes LE