FZUS53 KDLH 271323 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 822 AM 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. LSZ140-272200- Grand Portage to Grand Marais MN- 822 AM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Northeast wind 15 to 20 knots. Patchy fog through the day. Chance of rain early in the morning. Rain in the afternoon. Waves 3 to 5 feet. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming northwest with gusts to around 30 knots after midnight. Patchy fog through the night. Rain in the evening. Chance of rain after midnight. Waves 3 to 5 feet. .TUESDAY...Northwest wind 15 to 20 knots. Gusts up to 30 knots decreasing to 25 knots in the afternoon. Slight chance of rain in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon. A small craft advisory may be needed. .TUESDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Partly cloudy. Waves 1 to 2 feet. $$ LSZ141-272200- Grand Marais to Taconite Harbor MN- 822 AM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Chance of rain early in the morning, then rain likely late in the morning. Rain in the afternoon. Patchy fog in the late morning and afternoon. Waves 3 to 5 feet. Waves occasionally to 7 feet. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 25 knots becoming northwest 15 to 20 knots with gales to around 35 knots after midnight. Patchy fog through the night. Rain in the evening. Chance of rain after midnight. Waves 3 to 5 feet. A gale warning may be needed. .TUESDAY...Northwest wind 15 to 20 knots. Gusts up to 30 knots decreasing to 20 knots. Mostly sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 to 2 feet. $$ LSZ142-272200- Taconite Harbor to Silver Bay Harbor MN- 822 AM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Northeast wind 15 to 20 knots. Gusts up to 25 knots early in the morning. Patchy fog through the day. Chance of rain early in the morning. Rain in the late morning and afternoon. Waves 3 to 5 feet. Waves occasionally to 7 feet. .TONIGHT...North 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 fog in the evening. Rain in the evening, then chance of rain after midnight. Waves 3 to 5 feet. A gale warning may be needed. .TUESDAY...Northwest wind 15 to 20 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. Mostly clear. Waves 1 foot or less. $$ LSZ143-272200- Silver Bay Harbor to Two Harbors MN- 822 AM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Northeast wind 15 to 20 knots. Gusts up to 25 knots early in the morning. Patchy fog through the day. Rain likely early in the morning. Rain in the late morning and afternoon. Waves 3 to 5 feet. Waves occasionally to 7 feet. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming northwest with gusts to around 30 knots early in the morning. Patchy fog in the evening. Rain in the evening, then chance of rain after midnight. Waves 3 to 5 feet. .TUESDAY...Northwest wind 10 to 15 knots. Gusts up to 30 knots decreasing to 20 knots. Mostly sunny. Waves 1 to 3 feet. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ144-272200- Two Harbors to Duluth MN- 822 AM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Northeast wind 15 to 20 knots. Gusts up to 25 knots early in the morning. Patchy fog. Rain. Waves 3 to 5 feet. .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 in the late evening and overnight. Patchy fog in the evening. Rain in the evening, then chance of rain after midnight. Waves 2 to 4 feet. A gale warning may be needed. .TUESDAY...Northwest wind 15 to 20 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. $$ LSZ145-272200- Duluth MN to Port Wing WI- 822 AM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Northeast wind 15 to 20 knots. Gusts up to 25 knots early in the morning. Patchy fog. Rain. Waves 3 to 5 feet. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming west 15 to 20 knots with gusts to around 30 knots early in the morning. Patchy dense fog through the night. Rain in the evening. Chance of rain after midnight. Waves 2 to 4 feet. .TUESDAY...West wind 15 to 20 knots with gusts to around 30 knots becoming northwest 10 to 15 knots with gusts to around 25 knots in the late morning and afternoon. Partly sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ146-272200- Port Wing to Sand Island WI- 822 AM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Northeast wind 15 to 20 knots. Patchy fog through the day. Rain early in the morning. Rain showers and slight chance of thunderstorms in the afternoon. Waves 2 to 4 feet. .TONIGHT...Northeast wind 10 to 15 knots becoming west 15 to 20 knots with gusts to around 25 knots after midnight. Patchy fog through the night. Rain in the evening. Chance of rain after midnight. Waves 2 to 4 feet. .TUESDAY...West wind 15 to 20 knots with gusts to around 25 knots easing to 10 knots late in the afternoon. Partly sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ147-272200- Sand Island to Bayfield WI- 822 AM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...East wind 15 to 20 knots. Chance of rain early in the morning, then rain in the late morning and early afternoon. Rain showers and slight chance of thunderstorms late. Patchy fog in the late morning and afternoon. Waves 2 to 4 feet. .TONIGHT...Northeast wind 5 to 10 knots becoming north late in the evening, then becoming northwest 15 to 20 knots with gusts to around 25 knots after midnight. Patchy fog. Chance of rain. Waves 2 to 4 feet. .TUESDAY...West wind 15 to 20 knots. Gusts up to 30 knots decreasing to 20 knots. Mostly sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ150-272200- Outer Apostle Islands Beyond 5 NM from Mainland- 822 AM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...East wind 15 to 20 knots. Chance of rain early in the morning, then rain in the late morning and early afternoon. Rain showers and slight chance of thunderstorms late. Patchy fog in the late morning and afternoon. Waves 3 to 5 feet. Waves occasionally to 7 feet. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming northwest 20 to 25 knots with gusts to around 30 knots after midnight. Patchy fog through the night. Rain likely in the evening. Chance of rain after midnight. Waves 3 to 5 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. Mostly sunny. Waves 3 to 5 feet subsiding to 1 to 3 feet late in the afternoon. .TUESDAY NIGHT...West wind 5 to 10 knots becoming northwest in the late evening and overnight. Partly cloudy. Waves 1 to 2 feet. $$ LSZ121-272200- Chequamegon Bay-Bayfield to Oak Point WI- 822 AM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Chance of rain early in the morning, then rain late in the morning. Rain showers and slight chance of thunderstorms in the afternoon. Patchy fog in the late morning and afternoon. Waves 1 to 2 feet. .TONIGHT...North wind 5 to 10 knots with gusts to around 20 knots becoming northwest 15 to 20 knots with gusts to around 25 knots after midnight. Patchy fog in the evening. Rain showers and slight chance of thunderstorms in the evening, then chance of rain after midnight. Waves 1 to 2 feet. .TUESDAY...West wind 15 to 20 knots with gusts to around 30 knots easing to 10 knots with gusts to around 20 knots late in the afternoon. Mostly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...Northwest wind 5 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ148-272200- Oak Point to Saxon Harbor WI- 822 AM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...East wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Rain early in the morning. Rain showers and slight chance of thunderstorms in the afternoon. Patchy fog in the late morning and afternoon. Waves 2 to 4 feet. .TONIGHT...Northeast wind 5 to 10 knots becoming north late in the evening, then becoming northwest 15 to 20 knots with gusts to around 25 knots after midnight. Patchy fog through the night. Rain showers and slight chance of thunderstorms in the evening. Chance of rain after midnight. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight, then building to 1 to 3 feet early in the morning. .TUESDAY...West wind 15 to 20 knots with gusts to around 30 knots easing to 10 knots with gusts to around 20 knots late in the afternoon. Partly sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .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