FZUS53 KDLH 041600 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 1100 AM CDT Mon May 4 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. LSZ140-042200- Grand Portage to Grand Marais MN- 1100 AM CDT Mon May 4 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... .REST OF TODAY...West wind 20 to 25 knots with gusts to around 30 knots. Mostly sunny. Waves 4 to 6 feet. Waves occasionally to 7 feet. .TONIGHT...West wind 20 to 25 knots with gusts to around 30 knots easing to 10 to 15 knots with gusts to around 25 knots early in the morning. Chance of flurries after midnight. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. .TUESDAY...West wind 10 to 15 knots with gusts to around 20 knots. Chance of flurries in the morning. Waves 1 to 2 feet. .TUESDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Partly cloudy. Waves 1 to 2 feet. $$ LSZ141-042200- Grand Marais to Taconite Harbor MN- 1100 AM CDT Mon May 4 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... .REST OF TODAY...West wind 20 to 25 knots with gusts to around 30 knots. Partly sunny. Waves 2 to 4 feet. .TONIGHT...West wind 15 to 20 knots. Gusts up to 30 knots decreasing to 20 knots. Chance of flurries after midnight. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late evening and overnight. .TUESDAY...West wind 10 to 15 knots. Gusts up to 20 knots until late afternoon. Mostly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ142-042200- Taconite Harbor to Silver Bay Harbor MN- 1100 AM CDT Mon May 4 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... .REST OF TODAY...West wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 3 feet. .TONIGHT...West wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots after midnight. Partly cloudy. Waves 1 to 2 feet. .TUESDAY...West wind 5 to 10 knots. Gusts up to 20 knots in the morning. Mostly sunny. Waves 1 foot or less. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ143-042200- Silver Bay Harbor to Two Harbors MN- 1100 AM CDT Mon May 4 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... .REST OF TODAY...West wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...West wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots in the late evening and overnight. Mostly clear. Waves 1 to 2 feet. .TUESDAY...West wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .TUESDAY NIGHT...Northwest wind 5 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ144-042200- Two Harbors to Duluth MN- 1100 AM CDT Mon May 4 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... .REST OF TODAY...West wind 20 to 25 knots with gusts to around 30 knots. Mostly sunny. Waves 1 to 3 feet. .TONIGHT...West wind 20 to 25 knots with gusts to around 30 knots becoming northwest 10 to 15 knots with gusts to around 20 knots after midnight. Mostly clear. Waves 1 to 3 feet. .TUESDAY...West wind 10 to 15 knots with gusts to around 20 knots. Mostly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...Northwest wind 10 to 15 knots easing to 5 knots after midnight. Partly cloudy. Waves 1 foot or less. $$ LSZ145-042200- Duluth MN to Port Wing WI- 1100 AM CDT Mon May 4 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... .REST OF TODAY...West wind 20 to 25 knots with gusts to around 30 knots. Mostly sunny. Waves 2 to 4 feet. .TONIGHT...West wind 20 to 25 knots with gusts to around 30 knots becoming northwest 10 to 15 knots with gusts to around 20 knots after midnight. Mostly clear. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. .TUESDAY...West wind 10 to 15 knots with gusts to around 20 knots. Mostly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...Northwest wind 10 to 15 knots easing to 5 to 10 knots after midnight. Partly cloudy. Waves 1 to 2 feet. $$ LSZ146-042200- Port Wing to Sand Island WI- 1100 AM CDT Mon May 4 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... .REST OF TODAY...West wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 2 to 4 feet. .TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots in the late evening and overnight. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. .TUESDAY...West wind 10 to 15 knots with gusts to around 20 knots easing to 5 to 10 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ147-042200- Sand Island to Bayfield WI- 1100 AM CDT Mon May 4 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... .REST OF TODAY...West wind 10 to 15 knots with gusts to around 25 knots. Mostly sunny. Waves 2 to 4 feet. .TONIGHT...West wind 10 to 15 knots with gusts to around 25 knots easing to 5 to 10 knots with gusts to around 20 knots after midnight. Mostly clear. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. .TUESDAY...West wind 5 to 10 knots. Gusts up to 20 knots early in the morning. Sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...Northwest wind 5 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ150-042200- Outer Apostle Islands Beyond 5 NM from Mainland- 1100 AM CDT Mon May 4 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... .REST OF TODAY...West wind 15 to 20 knots with gusts to around 25 knots. Chance of sprinkles late in the morning. Waves 3 to 5 feet. .TONIGHT...West wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots after midnight. Partly cloudy. Waves 2 to 4 feet. A small craft advisory may be needed. .TUESDAY...West wind 10 to 15 knots. Gusts up to 20 knots in the morning. Sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ121-042200- Chequamegon Bay-Bayfield to Oak Point WI- 1100 AM CDT Mon May 4 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... .REST OF TODAY...West wind 5 to 15 knots rising to 15 to 20 knots in the afternoon. Gusts up to 25 knots. Chance of sprinkles late in the morning. Waves 1 to 2 feet. .TONIGHT...West wind 10 to 15 knots with gusts to around 25 knots easing to 5 to 10 knots with gusts to around 20 knots after midnight. Mostly clear. Waves 1 to 2 feet. .TUESDAY...West wind 5 to 10 knots. Sunny. Waves 1 foot or less. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ148-042200- Oak Point to Saxon Harbor WI- 1100 AM CDT Mon May 4 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... .REST OF TODAY...West wind 15 to 20 knots with gusts to around 25 knots. Chance of rain showers late in the morning. Waves 1 to 3 feet. .TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots in the late evening and overnight. Mostly clear. Waves 1 to 3 feet. .TUESDAY...West wind 10 to 15 knots. Sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH