FZUS53 KDLH 120832 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 332 AM CDT Mon May 12 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. LSZ140-141-121615- Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- 332 AM CDT Mon May 12 2025 .TODAY...Southwest wind 10 to 15 knots with gusts to around 25 knots becoming south with gusts to around 20 knots in the afternoon. Sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon. .TONIGHT...Southeast wind 5 to 10 knots becoming south after midnight. Clear. Waves 1 to 2 feet. .TUESDAY...Southeast wind 5 to 10 knots. Sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...East wind 5 to 10 knots. Mostly clear. Waves 1 to 2 feet. $$ LSZ142-143-121615- Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN- 332 AM CDT Mon May 12 2025 .TODAY...Southwest wind 10 to 15 knots with gusts to around 25 knots becoming southeast 5 to 10 knots late in the afternoon. Sunny. Waves 1 to 2 feet. .TONIGHT...East wind 5 to 10 knots becoming northeast after midnight. Clear. Waves 1 to 2 feet. .TUESDAY...Northeast wind 10 to 15 knots. Sunny. Waves 1 foot or less. .TUESDAY NIGHT...Northeast wind 10 to 15 knots easing to 5 knots after midnight. Mostly clear. Waves 1 foot or less. $$ LSZ144-121615- Two Harbors to Duluth MN- 332 AM CDT Mon May 12 2025 .TODAY...South wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots in the late morning and afternoon. Sunny. Waves 1 to 2 feet. .TONIGHT...Southeast wind 10 to 15 knots becoming east 5 to 10 knots with gusts to around 20 knots after midnight. Clear. Waves 1 to 2 feet. .TUESDAY...East wind 10 to 15 knots. Sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...East wind 10 to 15 knots easing to 5 knots early in the morning. Mostly clear. Waves 1 to 2 feet. $$ LSZ145-146-121615- Duluth MN to Port Wing WI-Port Wing to Sand Island WI- 332 AM CDT Mon May 12 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING... .TODAY...Southwest wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots in the late morning and afternoon. Sunny. Waves 1 to 2 feet. .TONIGHT...South wind 10 to 15 knots with gusts to around 20 knots. Clear. Waves 1 to 2 feet. .TUESDAY...Southeast wind 5 to 10 knots becoming east 10 to 15 knots in the late morning and afternoon. Sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...East wind 10 to 15 knots easing to 5 knots early in the morning. Mostly clear. Waves 1 to 2 feet. $$ LSZ147-121615- Sand Island to Bayfield WI- 332 AM CDT Mon May 12 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING... .TODAY...South wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots in the late morning and afternoon. Sunny. Waves 1 to 2 feet. .TONIGHT...South wind 5 to 10 knots. Gusts up to 20 knots after midnight. Clear. Waves 1 foot or less. .TUESDAY...South wind 5 to 10 knots becoming east late in the afternoon. Sunny. Waves 1 foot or less. .TUESDAY NIGHT...East wind 5 to 10 knots becoming southeast after midnight. Partly cloudy. Waves 1 foot or less. $$ LSZ121-121615- Chequamegon Bay-Bayfield to Oak Point WI- 332 AM CDT Mon May 12 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING... .TODAY...South wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots in the late morning and afternoon. Sunny. Waves 1 foot or less. .TONIGHT...South wind 5 to 10 knots. Gusts up to 20 knots early in the evening then 20 knots after midnight. Clear. Waves 1 foot or less. .TUESDAY...South wind 5 to 10 knots becoming southeast in the afternoon. Sunny. Waves 1 foot or less. .TUESDAY NIGHT...Southeast wind 5 to 10 knots becoming south in the late evening and overnight. Mostly clear. Waves 1 foot or less. $$ LSZ148-121615- Oak Point to Saxon Harbor WI- 332 AM CDT Mon May 12 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING... .TODAY...Southwest wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots in the late morning and afternoon. Sunny. Waves 1 to 2 feet. .TONIGHT...South wind 5 to 10 knots with gusts to around 20 knots. Clear. Waves 1 foot or less. .TUESDAY...South wind 5 to 10 knots with gusts to around 20 knots becoming southeast in the afternoon. Sunny. Waves 1 foot or less. .TUESDAY NIGHT...Southeast wind 5 to 10 knots becoming south in the late evening and overnight. Mostly clear. Waves 1 foot or less. $$ LSZ150-121615- Outer Apostle Islands Beyond 5 NM from Mainland- 332 AM CDT Mon May 12 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING... .TODAY...South wind 10 to 15 knots. Gusts up to 25 knots. Sunny. Waves 1 to 3 feet. .TONIGHT...South wind 10 to 15 knots. Gusts up to 20 knots after midnight. Clear. Waves 1 to 2 feet. .TUESDAY...South wind 5 to 10 knots becoming east in the afternoon. Sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...East wind 5 to 10 knots becoming southeast in the late evening and overnight. Partly cloudy. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes Huyck