FZUS53 KDLH 050623 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 123 AM CDT Sun Apr 5 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. LSZ140-051600- Grand Portage to Grand Marais MN- 123 AM CDT Sun Apr 5 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...Northwest wind 15 to 20 knots with gusts to around 30 knots becoming west 10 to 15 knots in the afternoon. Chance of snow late in the afternoon. Waves 1 to 3 feet. .TONIGHT...West wind 5 to 10 knots becoming north 15 to 20 knots with gusts to around 30 knots in the late evening and overnight. Slight chance of snow in the evening. Chance of snow after midnight. Waves 1 to 3 feet. .MONDAY...North wind 20 to 25 knots with gusts to around 30 knots becoming northwest 10 to 15 knots with gusts to around 20 knots late in the afternoon. Chance of snow in the morning. Slight chance of snow in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. A small craft advisory may be needed. .MONDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots in the evening. Mostly clear. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ141-051600- Grand Marais to Taconite Harbor MN- 123 AM CDT Sun Apr 5 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...Northwest wind 10 to 15 knots with gusts to around 25 knots becoming west 5 to 10 knots in the afternoon. Chance of rain and slight chance of snow late in the afternoon. Waves 1 to 3 feet. .TONIGHT...Northwest wind 5 to 10 knots becoming north 10 to 15 knots with gusts to around 25 knots after midnight. Chance of rain in the evening. Chance of snow through the night. Waves 1 to 2 feet. .MONDAY...North wind 10 to 15 knots. Gusts up to 30 knots decreasing to 20 knots. Chance of snow in the morning. Slight chance of snow in the afternoon. Waves 1 to 2 feet. .MONDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots after midnight. Mostly clear. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ142-051600- Taconite Harbor to Silver Bay Harbor MN- 123 AM CDT Sun Apr 5 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT EARLY THIS MORNING... .TODAY...Northwest wind 10 to 15 knots with gusts to around 25 knots becoming west 5 knots in the afternoon. Chance of rain and slight chance of snow late in the afternoon. Waves 1 to 2 feet. .TONIGHT...Northwest wind 5 to 10 knots rising to 10 to 15 knots with gusts to around 25 knots early in the morning. Chance of rain and slight chance of snow in the evening, then chance of snow after midnight. Waves 1 to 2 feet. .MONDAY...Northwest wind 10 to 15 knots. Gusts up to 30 knots. Slight chance of snow. Waves 1 to 2 feet. .MONDAY NIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ143-051600- Silver Bay Harbor to Two Harbors MN- 123 AM CDT Sun Apr 5 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT EARLY THIS MORNING... .TODAY...West wind 5 to 10 knots. Gusts up to 20 knots early in the morning. Chance of rain and slight chance of snow late in the afternoon. Waves 1 to 2 feet. .TONIGHT...Northwest wind 10 to 15 knots. Gusts up to 25 knots. Chance of rain in the evening. Chance of snow after midnight. Waves 1 to 2 feet. .MONDAY...Northwest wind 10 to 15 knots. Gusts up to 25 knots. Slight chance of snow. Waves 1 to 2 feet. .MONDAY NIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ144-051600- Two Harbors to Duluth MN- 123 AM CDT Sun Apr 5 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT EARLY THIS MORNING... .TODAY...West wind 10 to 15 knots. Gusts up to 20 knots early in the morning. Chance of rain late in the afternoon. Waves 1 to 2 feet. .TONIGHT...West wind 10 to 15 knots with gusts to around 20 knots becoming northwest 15 to 20 knots with gusts to around 25 knots early in the morning. Chance of rain in the evening, then slight chance of rain and snow after midnight. Waves 1 to 3 feet. .MONDAY...Northwest wind 15 to 20 knots. Gusts up to 25 knots. Slight chance of snow. Waves 1 to 3 feet. .MONDAY NIGHT...Northwest wind 5 to 10 knots becoming west early in the morning. Mostly clear. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ145-051600- Duluth MN to Port Wing WI- 123 AM CDT Sun Apr 5 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT EARLY THIS MORNING... .TODAY...West wind 10 to 15 knots. Gusts up to 20 knots early in the morning. Chance of rain late in the afternoon. Waves 1 to 2 feet. .TONIGHT...West wind 10 to 15 knots with gusts to around 20 knots becoming northwest 15 to 20 knots with gusts to around 25 knots early in the morning. Chance of rain in the evening. Slight chance of rain and snow after midnight. Waves 1 to 3 feet building to 2 to 4 feet early in the morning. .MONDAY...Northwest wind 15 to 20 knots. Gusts up to 25 knots early in the morning. Slight chance of snow. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. A small craft advisory may be needed. .MONDAY NIGHT...Northwest wind 10 to 15 knots becoming west 5 knots after midnight. Mostly clear. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ146-051600- Port Wing to Sand Island WI- 123 AM CDT Sun Apr 5 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT EARLY THIS MORNING... .TODAY...West wind 10 to 15 knots with gusts to around 20 knots easing to 5 to 10 knots with gusts to around 20 knots in the late morning and afternoon. Chance of rain and snow late in the afternoon. Waves 1 to 3 feet. .TONIGHT...West wind 10 to 15 knots with gusts to around 20 knots becoming northwest 15 to 20 knots with gusts to around 25 knots early in the morning. Chance of rain in the evening. Chance of snow and slight chance of rain after midnight. Waves 1 to 2 feet building to 2 to 4 feet early in the morning. .MONDAY...Northwest wind 15 to 20 knots. Gusts up to 25 knots. Slight chance of snow. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. A small craft advisory may be needed. .MONDAY NIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ147-051600- Sand Island to Bayfield WI- 123 AM CDT Sun Apr 5 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT EARLY THIS MORNING... .TODAY...West wind 10 to 15 knots. Gusts up to 20 knots early in the morning then 20 knots early in the afternoon. Chance of rain and snow late in the afternoon. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late morning and afternoon. .TONIGHT...Northwest wind 10 to 15 knots. Gusts up to 25 knots. Chance of rain in the evening. Chance of snow and slight chance of rain after midnight. Waves 1 to 2 feet building to 1 to 3 feet early in the morning. .MONDAY...Northwest wind 15 to 20 knots. Gusts up to 25 knots. Chance of snow in the morning, then slight chance of snow in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon. A small craft advisory may be needed. .MONDAY NIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ150-051600- Outer Apostle Islands Beyond 5 NM from Mainland- 123 AM CDT Sun Apr 5 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING... .TODAY...West wind 10 to 15 knots with gusts to around 25 knots easing to 5 to 10 knots with gusts to around 20 knots late in the afternoon. Slight chance of rain and snow late in the afternoon. Waves 3 to 5 feet subsiding to 1 to 3 feet in the afternoon. .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots becoming northwest 10 to 15 knots with gusts to around 25 knots early in the morning. Chance of snow and slight chance of rain. Waves 1 to 2 feet building to 1 to 3 feet early in the morning. .MONDAY...North wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots in the afternoon. Chance of snow. Waves 4 to 6 feet. Waves occasionally to 7 feet. A small craft advisory may be needed. .MONDAY NIGHT...Northwest wind 10 to 15 knots. Partly cloudy. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ148-051600- Oak Point to Saxon Harbor WI- 123 AM CDT Sun Apr 5 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING... .TODAY...West wind 10 to 15 knots. Gusts up to 20 knots early in the morning. Chance of snow and slight chance of rain late in the afternoon. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late morning and afternoon. .TONIGHT...West wind 10 to 15 knots. Gusts up to 20 knots early in the morning. Chance of rain and snow. Waves 1 to 3 feet. .MONDAY...North wind 15 to 20 knots. Gusts up to 25 knots in the morning. Chance of snow. Waves 3 to 5 feet. A small craft advisory may be needed. .MONDAY NIGHT...Northwest wind 10 to 15 knots becoming west 5 knots early in the morning. Partly cloudy. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late evening and overnight. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH