FZUS53 KDLH 271743 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 1243 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. LSZ140-272200- Grand Portage to Grand Marais MN- 1243 PM 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. Patchy fog. Rain showers and slight chance of thunderstorms. Waves 2 to 4 feet. .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 in the evening. Rain showers likely after midnight. Waves 2 to 4 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 1 to 3 feet. A gale warning 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. $$ LSZ141-272200- Grand Marais to Taconite Harbor MN- 1243 PM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Patchy fog. Rain showers. Waves 3 to 5 feet. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 25 knots becoming northwest 15 to 20 knots with gales to around 35 knots after midnight. Patchy fog through the night. Rain showers in the evening. Rain showers likely after midnight. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. A gale warning may be needed. .TUESDAY...West wind 15 to 20 knots. Gusts up to 35 knots decreasing to 20 knots. Chance of rain showers in the morning. Waves 1 to 3 feet. A gale warning may be needed. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ142-272200- Taconite Harbor to Silver Bay Harbor MN- 1243 PM 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 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots late. Patchy fog. Rain showers. 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 after midnight. Patchy fog through the night. Rain showers in the evening. Rain showers likely after midnight. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. A gale warning may be needed. .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 2 feet. A gale warning may be needed. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves 1 foot or less. $$ LSZ143-272200- Silver Bay Harbor to Two Harbors MN- 1243 PM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Northeast wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots late. Patchy fog. Rain showers. Waves 3 to 5 feet. Waves occasionally to 7 feet. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming west 15 to 20 knots with gusts to around 30 knots early in the morning. Patchy fog through the night. Rain showers in the evening. Rain showers likely after midnight. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. .TUESDAY...West wind 10 to 15 knots. Gusts up to 30 knots decreasing to 20 knots. Mostly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ144-272200- Two Harbors to Duluth MN- 1243 PM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Patchy fog. Rain showers. 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 20 to 25 knots with gusts to around 30 knots in the late evening and overnight. Patchy fog through the night. Rain showers in the evening. Rain showers likely after midnight. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. .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. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ145-272200- Duluth MN to Port Wing WI- 1243 PM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Patchy fog. Rain showers. Waves 3 to 5 feet. .TONIGHT...North wind 10 to 15 knots with gusts to around 20 knots becoming west 20 to 25 knots with gusts to around 30 knots in the late evening and overnight. Patchy fog through the night. Rain showers in the evening. Rain showers likely after midnight. Waves 2 to 4 feet. .TUESDAY...West wind 15 to 20 knots. Gusts up to 30 knots decreasing to 20 knots. Partly sunny in the morning then clearing. Waves 2 to 4 feet subsiding to 1 to 2 feet in the afternoon. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ146-272200- Port Wing to Sand Island WI- 1243 PM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Patchy fog through the day. Slight chance of thunderstorms early in the afternoon. Rain showers through the day. 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 25 knots in the late evening and overnight. Areas of dense fog in the evening, then patchy fog after midnight. Rain showers in the evening, then rain showers likely after midnight. Waves 2 to 4 feet. .TUESDAY...West wind 20 to 25 knots easing to 5 to 10 knots late in the afternoon. 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. $$ LSZ147-272200- Sand Island to Bayfield WI- 1243 PM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots late. Patchy fog. Rain showers and slight chance of thunderstorms. Waves 2 to 4 feet. .TONIGHT...Northeast wind 5 to 10 knots becoming west 15 to 20 knots with gusts to around 30 knots in the late evening and overnight. Areas of dense fog in the evening, then patchy fog after midnight. Rain showers in the evening, then rain showers likely after midnight. Waves 2 to 4 feet. .TUESDAY...West wind 20 to 25 knots with gusts to around 30 knots easing to 5 to 10 knots with gusts to around 20 knots late in the afternoon. Slight chance of rain showers in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ150-272200- Outer Apostle Islands Beyond 5 NM from Mainland- 1243 PM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Patchy fog. Rain showers and slight chance of thunderstorms. Waves 3 to 5 feet. .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 fog in the evening, then patchy fog after midnight. Rain showers in the evening, then rain showers likely 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. 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. $$ LSZ121-272200- Chequamegon Bay-Bayfield to Oak Point WI- 1243 PM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Northeast wind 5 to 10 knots. Patchy fog. Rain showers and slight chance of thunderstorms. Waves 2 to 4 feet. .TONIGHT...Northeast wind 5 to 10 knots becoming west 15 to 20 knots with gusts to around 25 knots in the late evening and overnight. Patchy fog through the night. Rain showers in the evening. Rain showers likely after midnight. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and overnight. .TUESDAY...West wind 15 to 20 knots. Gusts up to 30 knots decreasing to 20 knots. Mostly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ148-272200- Oak Point to Saxon Harbor WI- 1243 PM CDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Northeast wind 5 to 10 knots. Patchy fog. Rain showers and slight chance of thunderstorms. Waves 2 to 4 feet. .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 in the evening. Rain showers likely 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 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 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