FZUS53 KDLH 030913 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 413 AM CDT Sun May 3 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. LSZ140-031600- Grand Portage to Grand Marais MN- 413 AM CDT Sun May 3 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY EVENING... .TODAY...West wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...Southwest wind 15 to 20 knots. Gusts up to 30 knots. Slight chance of rain showers in the evening, then chance of rain showers after midnight. Waves 1 to 2 feet building to 3 to 5 feet after midnight. .MONDAY...West wind 15 to 20 knots with gusts to around 30 knots. Chance of rain showers. Waves 3 to 5 feet. .MONDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to 30 knots decreasing to 20 knots after midnight. Slight chance of rain showers in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. $$ LSZ141-031600- Grand Marais to Taconite Harbor MN- 413 AM CDT Sun May 3 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY EVENING... .TODAY...West wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 25 knots. Slight chance of rain showers in the evening, then chance of rain showers after midnight. Waves 1 to 3 feet. .MONDAY...West wind 15 to 20 knots. Gusts up to 25 knots. Chance of rain showers. Waves 2 to 4 feet. .MONDAY NIGHT...Northwest wind 15 to 20 knots with gusts to around 25 knots easing to 5 to 10 knots with gusts to around 20 knots after midnight. Slight chance of rain showers in the evening. Waves 1 to 3 feet. $$ LSZ142-031600- Taconite Harbor to Silver Bay Harbor MN- 413 AM CDT Sun May 3 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY EVENING... .TODAY...Northwest wind 5 to 10 knots becoming west late in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 10 to 15 knots with gusts to around 25 knots. Slight chance of rain showers in the evening, then chance of rain showers after midnight. Waves 1 to 2 feet building to 1 to 3 feet early in the morning. .MONDAY...West wind 10 to 15 knots with gusts to around 25 knots. Chance of rain showers. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late morning and afternoon. .MONDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots until early morning. Partly cloudy. Waves 1 to 2 feet. $$ LSZ143-031600- Silver Bay Harbor to Two Harbors MN- 413 AM CDT Sun May 3 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY EVENING... .TODAY...West wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 25 knots. Chance of rain showers after midnight. Waves 1 to 2 feet building to 2 to 4 feet after midnight. .MONDAY...West wind 10 to 15 knots. Gusts up to 20 knots. Chance of rain showers. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon. .MONDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots in the evening. Mostly clear. Waves 1 to 2 feet. $$ LSZ144-031600- Two Harbors to Duluth MN- 413 AM CDT Sun May 3 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY EVENING... .TODAY...West wind 10 to 15 knots. Gusts up to 20 knots in the late morning and early afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...West wind 5 to 10 knots becoming southwest 15 to 20 knots with gusts to around 30 knots in the late evening and overnight. Chance of rain showers after midnight. Waves 1 to 2 feet building to 2 to 4 feet after midnight. .MONDAY...West wind 15 to 20 knots. Gusts up to 25 knots. Chance of rain showers in the morning, then slight chance of rain showers in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon. .MONDAY NIGHT...Northwest wind 15 to 20 knots with gusts to around 25 knots easing to 5 to 10 knots after midnight. Mostly clear. Waves 1 to 3 feet. $$ LSZ145-031600- Duluth MN to Port Wing WI- 413 AM CDT Sun May 3 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY EVENING... .TODAY...West wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...Southwest wind 5 to 10 knots rising to 15 to 20 knots with gusts to around 30 knots in the late evening and overnight. Chance of rain showers after midnight. Waves 1 to 2 feet building to 2 to 4 feet after midnight. .MONDAY...West wind 15 to 20 knots with gusts to around 30 knots. Chance of rain showers in the morning, then slight chance of rain showers in the afternoon. Waves 2 to 4 feet. .MONDAY NIGHT...Northwest wind 15 to 20 knots with gusts to around 25 knots easing to 5 to 10 knots after midnight. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. $$ LSZ146-031600- Port Wing to Sand Island WI- 413 AM CDT Sun May 3 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY AFTERNOON... .TODAY...West wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 15 to 20 knots with gusts to around 25 knots. Chance of rain showers after midnight. Waves 1 to 2 feet building to 2 to 4 feet after midnight. .MONDAY...Southwest wind 15 to 20 knots with gusts to around 25 knots becoming west 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Chance of rain showers. Waves 2 to 4 feet. .MONDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots becoming west 5 to 10 knots after midnight. Partly cloudy. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late evening and overnight. $$ LSZ147-031600- Sand Island to Bayfield WI- 413 AM CDT Sun May 3 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY AFTERNOON... .TODAY...West wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 10 to 15 knots with gusts to around 25 knots. Chance of rain showers after midnight. Waves 1 to 2 feet building to 1 to 3 feet early in the morning. .MONDAY...West wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots in the late morning and afternoon. Chance of rain showers. Waves 1 to 3 feet. .MONDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Partly cloudy. Waves 1 to 2 feet. $$ LSZ150-031600- Outer Apostle Islands Beyond 5 NM from Mainland- 413 AM CDT Sun May 3 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY AFTERNOON... .TODAY...West wind 5 to 10 knots. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...Southwest wind 15 to 20 knots with gusts to around 25 knots. Chance of rain showers after midnight. Waves 1 to 2 feet building to 2 to 4 feet after midnight. .MONDAY...West wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots in the afternoon. Chance of rain showers. Waves 2 to 4 feet. .MONDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots until early morning. Partly cloudy. Waves 1 to 3 feet. $$ LSZ121-031600- Chequamegon Bay-Bayfield to Oak Point WI- 413 AM CDT Sun May 3 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY AFTERNOON... .TODAY...West wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .TONIGHT...West wind 5 knots becoming southwest 15 to 20 knots with gusts to around 25 knots in the late evening and overnight. Chance of rain showers after midnight. Waves 1 to 2 feet. .MONDAY...West wind 10 to 15 knots. Gusts up to 25 knots. Chance of rain showers. Waves 1 to 2 feet. .MONDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Partly cloudy. Waves 1 foot or less. $$ LSZ148-031600- Oak Point to Saxon Harbor WI- 413 AM CDT Sun May 3 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY AFTERNOON... .TODAY...West wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 15 to 20 knots with gusts to around 25 knots. Slight chance of rain showers after midnight. Waves 1 to 3 feet. .MONDAY...Southwest wind 15 to 20 knots with gusts to around 25 knots becoming west 10 to 15 knots with gusts to around 20 knots in the afternoon. Chance of rain showers. Waves 1 to 3 feet. .MONDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Partly cloudy. Waves 1 to 2 feet. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH