FZUS53 KDLH 272200 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 500 PM CDT Mon Apr 27 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. LSZ140-280400- Grand Portage to Grand Marais MN- 500 PM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT TUESDAY... ...GALE WARNING IN EFFECT FROM 4 AM CDT TUESDAY THROUGH TUESDAY AFTERNOON... .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 25 knots becoming northwest 15 to 20 knots with gusts to around 30 knots after midnight. Patchy fog through the night. Rain showers and slight chance of thunderstorms in the evening. Rain showers likely after midnight. Waves 3 to 5 feet. .TUESDAY...West wind 15 to 20 knots. Gusts up to 35 knots decreasing to 25 knots. Chance of rain showers in the morning. Waves 3 to 5 feet. .TUESDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Partly cloudy. Waves 1 to 2 feet. .WEDNESDAY...West wind 5 knots becoming southwest in the afternoon. Partly sunny. Waves 1 foot or less. $$ LSZ141-280400- Grand Marais to Taconite Harbor MN- 500 PM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT TUESDAY... ...GALE WARNING IN EFFECT FROM 4 AM CDT TUESDAY THROUGH TUESDAY AFTERNOON... .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 25 knots becoming northwest 15 to 20 knots with gales to around 35 knots after midnight. Patchy fog until early morning. Rain showers in the evening. Rain showers likely after midnight, then chance of rain showers late in the night. Waves 2 to 4 feet. .TUESDAY...West wind 15 to 20 knots. Gusts up to 35 knots decreasing to 20 knots. Chance of rain showers in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 to 2 feet. .WEDNESDAY...West wind 5 knots. Mostly sunny. Waves 1 foot or less. $$ LSZ142-280400- Taconite Harbor to Silver Bay Harbor MN- 500 PM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT TUESDAY... ...GALE WARNING IN EFFECT FROM 4 AM CDT TUESDAY THROUGH TUESDAY AFTERNOON... .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming northwest 15 to 20 knots with gales to around 35 knots after midnight. Patchy dense fog until early morning. Rain showers early in the evening. Rain showers likely in the late evening and early morning, then chance of rain showers late in the night. Waves 2 to 4 feet. .TUESDAY...West wind 15 to 20 knots. Gusts up to 35 knots decreasing to 20 knots. Slight chance of rain showers in the morning. Waves 1 to 3 feet. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves 1 foot or less. .WEDNESDAY...West wind 5 knots. Mostly sunny. Waves 1 foot or less. $$ LSZ143-280400- Silver Bay Harbor to Two Harbors MN- 500 PM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON... .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming west 15 to 20 knots with gusts to around 30 knots late in the night. Patchy fog until early morning. Rain showers in the evening. Rain showers likely after midnight, then chance of rain showers late in the night. Waves 2 to 4 feet. .TUESDAY...West wind 10 to 15 knots. Gusts up to 30 knots decreasing to 20 knots. Mostly sunny. Waves 1 to 3 feet. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. .WEDNESDAY...West wind 5 knots. Sunny in the morning then becoming partly sunny. Waves 1 foot or less. $$ LSZ144-280400- Two Harbors to Duluth MN- 500 PM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON... .TONIGHT...North wind 10 to 15 knots with gusts to around 20 knots becoming northwest 20 to 25 knots with gusts to around 30 knots in the late evening and overnight. Patchy fog until early morning. Rain showers early in the evening. Rain showers likely in the late evening and early morning, then slight chance of rain showers late in the night. Waves 2 to 4 feet. .TUESDAY...West wind 15 to 20 knots. Gusts up to 30 knots decreasing to 20 knots. Partly sunny in the morning then clearing. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late morning and afternoon. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. .WEDNESDAY...Northwest wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. $$ LSZ145-280400- Duluth MN to Port Wing WI- 500 PM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON... .TONIGHT...North wind 10 to 15 knots with gusts to around 20 knots becoming west 20 to 25 knots with gusts to around 30 knots in the late evening and overnight. Areas of dense fog early in the evening, then patchy fog in the late evening and early morning. Rain showers early in the evening, then rain showers likely in the late evening and early morning. Slight chance of rain showers late in the night. Waves 3 to 5 feet. .TUESDAY...West wind 15 to 20 knots. Gusts up to 30 knots decreasing to 20 knots. Partly sunny in the morning then clearing. Waves 3 to 5 feet subsiding to 1 to 3 feet in the afternoon. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 to 2 feet. .WEDNESDAY...West wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. $$ LSZ146-280400- Port Wing to Sand Island WI- 500 PM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON... .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming west 15 to 20 knots with gusts to around 25 knots in the late evening and overnight. Areas of dense fog in the evening. Patchy fog after midnight. Rain showers early in the evening. Rain showers likely in the late evening and early morning, then chance of rain showers late in the night. Waves 3 to 5 feet. .TUESDAY...West wind 20 to 25 knots easing to 5 to 10 knots late in the afternoon. Mostly sunny. Waves 3 to 5 feet subsiding to 1 to 2 feet late in the afternoon. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. .WEDNESDAY...West wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. $$ LSZ147-280400- Sand Island to Bayfield WI- 500 PM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON... .TONIGHT...Northeast wind 5 to 10 knots becoming west 15 to 20 knots with gusts to around 30 knots in the late evening and overnight. Areas of dense fog in the evening. Patchy fog after midnight. Rain showers early in the evening. Rain showers likely in the late evening and early morning. Chance of rain showers late in the night. Waves 3 to 5 feet. .TUESDAY...West wind 20 to 25 knots with gusts to around 30 knots easing to 5 to 10 knots with gusts to around 20 knots late in the afternoon. Slight chance of rain showers in the morning. Waves 3 to 5 feet subsiding to 1 to 3 feet late in the afternoon. Waves occasionally to 7 feet. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 to 2 feet. .WEDNESDAY...West wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. $$ LSZ150-280400- Outer Apostle Islands Beyond 5 NM from Mainland- 500 PM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON... .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming west 20 to 25 knots with gusts to around 30 knots in the late evening and overnight. Areas of dense fog early in the evening. Patchy fog in the late evening and overnight. Rain showers early in the evening, then rain showers likely in the late evening and early morning. Chance of rain showers late in the night. Waves 3 to 5 feet. Waves occasionally to 7 feet. .TUESDAY...West wind 20 to 25 knots with gusts to around 30 knots easing to 10 to 15 knots with gusts to around 20 knots late in the afternoon. Slight chance of rain showers in the morning. Waves 4 to 7 feet subsiding to 2 to 4 feet late in the afternoon. Waves occasionally to 9 feet. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 to 2 feet. .WEDNESDAY...West wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. $$ LSZ121-280400- Chequamegon Bay-Bayfield to Oak Point WI- 500 PM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM CDT TUESDAY THROUGH TUESDAY AFTERNOON... .TONIGHT...Northeast wind 5 to 10 knots becoming west 15 to 20 knots with gusts to around 25 knots in the late evening and overnight. Patchy fog until early morning. Rain showers early in the evening. Rain showers likely in the late evening and early morning, then chance of rain showers late in the night. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and overnight. .TUESDAY...West wind 15 to 20 knots. Gusts up to 30 knots decreasing to 20 knots. Mostly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. .WEDNESDAY...Northwest wind 5 knots. Mostly sunny. Waves 1 foot or less. $$ LSZ148-280400- Oak Point to Saxon Harbor WI- 500 PM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM CDT TUESDAY THROUGH TUESDAY AFTERNOON... .TONIGHT...Northeast wind 5 to 10 knots becoming west 15 to 20 knots with gusts to around 30 knots in the late evening and overnight. Patchy fog through the night. Rain showers early in the evening. Rain showers likely in the late evening and early morning, then chance of rain showers late in the night. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight, then building to 2 to 4 feet late in the night. .TUESDAY...West wind 20 to 25 knots with gusts to around 30 knots easing to 10 to 15 knots with gusts to around 20 knots late in the afternoon. Slight chance of rain showers in the morning. Waves 2 to 4 feet subsiding to 1 to 2 feet late in the afternoon. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. .WEDNESDAY...Northwest wind 5 knots. Mostly sunny. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH