FZUS53 KDLH 260756 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 256 AM CDT Sun Apr 26 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. LSZ140-261615- Grand Portage to Grand Marais MN- 256 AM CDT Sun Apr 26 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY EVENING... .TODAY...Northeast wind 5 to 10 knots. Rain likely in the morning, then chance of rain early in the afternoon. Slight chance of rain late in the afternoon. Waves 1 foot or less. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots. Mostly cloudy. Waves 1 to 2 feet. .MONDAY...Northeast wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots in the late morning and afternoon. Chance of rain in the morning, then rain in the afternoon. Waves 1 to 3 feet building to 4 to 6 feet in the late morning and afternoon. Waves occasionally to 8 feet. .MONDAY NIGHT...Northeast wind 15 to 20 knots with gusts to around 25 knots becoming north with gusts to around 30 knots after midnight. Rain. Waves 4 to 6 feet. Waves occasionally to 8 feet. $$ LSZ141-261615- Grand Marais to Taconite Harbor MN- 256 AM CDT Sun Apr 26 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY EVENING... .TODAY...Northeast wind 5 to 10 knots. Rain likely in the morning, then chance of rain early in the afternoon. Slight chance of rain late in the afternoon. Waves 1 foot or less. .TONIGHT...East wind 10 to 15 knots. Gusts up to 20 knots in the late evening and overnight. Slight chance of rain. Waves 1 to 3 feet. .MONDAY...East wind 20 to 25 knots. Rain likely in the morning, then rain in the afternoon. Waves 4 to 6 feet. Waves occasionally to 7 feet. .MONDAY NIGHT...Northeast wind 15 to 20 knots with gusts to around 25 knots becoming north with gales to around 35 knots after midnight. Rain. Waves 4 to 6 feet. Waves occasionally to 7 feet. A gale warning may be needed. $$ LSZ142-261615- Taconite Harbor to Silver Bay Harbor MN- 256 AM CDT Sun Apr 26 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY EVENING... .TODAY...Northeast wind 5 knots. Rain early in the morning, then chance of rain in the late morning and early afternoon. Slight chance of rain late in the afternoon. Waves 1 foot or less. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots after midnight. Slight chance of rain in the evening. Chance of rain after midnight. Waves 1 to 3 feet. .MONDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Chance of rain in the morning, then rain in the afternoon. Waves 4 to 6 feet. Waves occasionally to 7 feet. .MONDAY NIGHT...Northeast wind 10 to 15 knots with gusts to around 25 knots becoming northwest 15 to 20 knots with gales to around 35 knots after midnight. Rain. Waves 4 to 6 feet. Waves occasionally to 7 feet. A gale warning may be needed. $$ LSZ143-261615- Silver Bay Harbor to Two Harbors MN- 256 AM CDT Sun Apr 26 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY EVENING... .TODAY...Northeast wind 5 to 10 knots. Rain likely early in the morning, then chance of rain late in the morning. Slight chance of rain in the afternoon. Waves 1 foot or less. .TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 25 knots. Slight chance of rain in the evening. Chance of rain after midnight. Waves 1 to 2 feet building to 1 to 3 feet early in the morning. .MONDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Rain. Waves 3 to 5 feet. Waves occasionally to 7 feet. .MONDAY NIGHT...North wind 10 to 15 knots with gusts to around 20 knots becoming northwest 15 to 20 knots with gusts to around 30 knots after midnight. Rain. Waves 3 to 5 feet. Waves occasionally to 7 feet. $$ LSZ144-261615- Two Harbors to Duluth MN- 256 AM CDT Sun Apr 26 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY EVENING... .TODAY...Northeast wind 10 to 15 knots. Rain likely early in the morning, then chance of rain late in the morning. Slight chance of rain in the afternoon. Waves 1 to 2 feet. .TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 25 knots. Slight chance of rain in the evening, then chance of rain after midnight. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .MONDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Rain. Waves 3 to 5 feet. .MONDAY NIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming north 20 to 25 knots with gusts to around 30 knots in the late evening and early morning, then becoming northwest with gales to around 35 knots early in the morning. Rain. Waves 3 to 5 feet. A gale warning may be needed. $$ LSZ145-261615- Duluth MN to Port Wing WI- 256 AM CDT Sun Apr 26 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY EVENING... .TODAY...Northeast wind 10 to 15 knots. Rain likely early in the morning, then chance of rain late in the morning. Slight chance of rain in the afternoon. Waves 1 to 2 feet. .TONIGHT...Northeast wind 15 to 20 knots. Slight chance of rain in the evening, then chance of rain after midnight. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .MONDAY...Northeast wind 15 to 20 knots. Gusts up to 25 knots early in the morning then 25 knots early in the afternoon. Rain and slight chance of thunderstorms. Waves 2 to 4 feet. .MONDAY NIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming north 20 to 25 knots with gusts to around 30 knots in the late evening and early morning, then becoming northwest with gusts to around 30 knots early in the morning. Slight chance of thunderstorms in the evening. Rain through the night. Waves 3 to 5 feet. $$ LSZ146-261615- Port Wing to Sand Island WI- 256 AM CDT Sun Apr 26 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING... .TODAY...Northeast wind 5 to 10 knots. Rain likely early in the morning, then chance of rain late in the morning. Slight chance of rain in the afternoon. Waves 1 foot or less. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots after midnight. Chance of rain after midnight. Waves 1 to 3 feet. .MONDAY...Northeast wind 15 to 20 knots. Rain through the day. Slight chance of thunderstorms in the afternoon. Waves 2 to 4 feet. .MONDAY NIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming northwest 15 to 20 knots with gusts to around 25 knots after midnight. Slight chance of thunderstorms in the evening. Rain through the night. Waves 2 to 4 feet. $$ LSZ147-261615- Sand Island to Bayfield WI- 256 AM CDT Sun Apr 26 2026 .TODAY...North wind 5 knots becoming northeast in the afternoon. Chance of rain in the morning, then slight chance of rain early in the afternoon. Waves 1 foot or less. .TONIGHT...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet. .MONDAY...East wind 10 to 15 knots with gusts to around 20 knots. Rain likely in the morning, then rain and slight chance of thunderstorms in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet in the late morning and afternoon. A small craft advisory may be needed. .MONDAY NIGHT...Northeast wind 5 to 10 knots becoming northwest 10 to 15 knots with gusts to around 25 knots after midnight. Rain and slight chance of thunderstorms in the evening, then rain likely after midnight. Waves 2 to 4 feet. A small craft advisory may be needed. $$ LSZ150-261615- Outer Apostle Islands Beyond 5 NM from Mainland- 256 AM CDT Sun Apr 26 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING... .TODAY...North wind 5 knots becoming northeast in the afternoon. Chance of rain in the morning, then slight chance of rain early in the afternoon. Waves 1 foot or less. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots early in the morning. Mostly cloudy. Waves 1 to 3 feet. .MONDAY...East wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots early in the afternoon. Rain likely in the morning, then rain and slight chance of thunderstorms in the afternoon. Waves 3 to 5 feet. Waves occasionally to 7 feet. .MONDAY NIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming northwest 15 to 20 knots with gusts to around 25 knots after midnight. Rain and slight chance of thunderstorms in the evening, then rain likely after midnight. Waves 3 to 5 feet. Waves occasionally to 7 feet. $$ LSZ121-261615- Chequamegon Bay-Bayfield to Oak Point WI- 256 AM CDT Sun Apr 26 2026 .TODAY...North wind 5 knots becoming northeast in the afternoon. Chance of rain in the morning, then slight chance of rain early in the afternoon. Waves 1 foot or less. .TONIGHT...Northeast wind 5 to 10 knots. Slight chance of rain after midnight. Waves 1 to 2 feet. .MONDAY...East wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Rain likely in the morning, then rain and slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet. .MONDAY NIGHT...East wind 5 to 10 knots becoming north 10 to 15 knots with gusts to around 20 knots late in the evening, then becoming northwest 15 to 20 knots with gusts to around 25 knots after midnight. Rain and slight chance of thunderstorms in the evening, then rain likely after midnight. Waves 1 to 2 feet. $$ LSZ148-261615- Oak Point to Saxon Harbor WI- 256 AM CDT Sun Apr 26 2026 .TODAY...North wind 5 knots becoming northeast in the afternoon. Chance of rain early in the morning, then slight chance of rain late in the morning. Waves 1 foot or less. .TONIGHT...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet. .MONDAY...East wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Slight chance of rain in the morning, then rain and slight chance of thunderstorms in the afternoon. Waves 1 to 3 feet. .MONDAY NIGHT...East wind 10 to 15 knots with gusts to around 20 knots becoming northwest 15 to 20 knots with gusts to around 25 knots after midnight. Rain and slight chance of thunderstorms in the evening, then rain likely after midnight. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight, then building to 2 to 4 feet early in the morning. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes JDS