FZUS53 KDLH 040643 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 143 AM CDT Sat Apr 4 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. LSZ140-041600- Grand Portage to Grand Marais MN- 143 AM CDT Sat Apr 4 2026 ...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON... .TODAY...Northeast wind up to 30 knots. Gusts up to 35 knots increasing to 40 knots late in the morning, then decreasing to 35 knots early in the afternoon decreasing to 30 knots late in the afternoon. Snow. Waves 8 to 11 feet. Waves occasionally to 14 feet. .TONIGHT...North wind 15 to 20 knots becoming northwest early in the morning. Gusts up to 30 knots. Snow likely in the evening, then chance of snow after midnight. Waves 4 to 7 feet subsiding to 2 to 4 feet after midnight. Waves occasionally to 9 feet. A small craft advisory may be needed. .SUNDAY...Northwest wind 15 to 20 knots with gusts to around 30 knots becoming west 5 to 10 knots in the afternoon. Mostly sunny. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late morning and afternoon. .SUNDAY NIGHT...Northwest wind 5 to 10 knots rising to 15 to 20 knots with gusts to around 25 knots. Chance of snow and rain after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ141-041600- Grand Marais to Taconite Harbor MN- 143 AM CDT Sat Apr 4 2026 ...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON... .TODAY...Northeast wind up to 30 knots. Gales up to 40 knots decreasing to 30 knots. Snow. Waves 7 to 12 feet subsiding to 6 to 9 feet late in the afternoon. Waves occasionally to 16 feet. .TONIGHT...North wind 15 to 20 knots. Gusts up to 20 knots increasing to 30 knots. Snow likely in the evening, then chance of snow after midnight. Waves 4 to 7 feet subsiding to 2 to 4 feet after midnight. Waves occasionally to 9 feet. A small craft advisory may be needed. .SUNDAY...Northwest wind 10 to 15 knots with gusts to around 25 knots becoming west 5 to 10 knots in the afternoon. Slight chance of rain and snow in the afternoon. Waves 1 to 3 feet. .SUNDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to 25 knots. Slight chance of snow in the evening. Slight chance of rain through the night. Chance of snow after midnight. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ142-041600- Taconite Harbor to Silver Bay Harbor MN- 143 AM CDT Sat Apr 4 2026 ...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON... .TODAY...East wind up to 30 knots with gales to around 35 knots becoming northeast 15 to 20 knots with gusts to around 25 knots late in the afternoon. Snow. Waves 8 to 13 feet subsiding to 7 to 10 feet late in the afternoon. Waves occasionally to 17 feet. .TONIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots increasing to 30 knots. Snow likely in the evening, then slight chance of snow after midnight. Waves 5 to 8 feet subsiding to 3 to 5 feet after midnight. Waves occasionally to 10 feet. A small craft advisory may be needed. .SUNDAY...Northwest wind 10 to 15 knots with gusts to around 25 knots becoming west 5 knots in the afternoon. Slight chance of rain and snow in the afternoon. Waves 1 to 3 feet. .SUNDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 25 knots. Slight chance of rain and snow in the evening, then chance of snow and rain after midnight. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ143-041600- Silver Bay Harbor to Two Harbors MN- 143 AM CDT Sat Apr 4 2026 ...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON... .TODAY...East wind up to 30 knots with gales to around 35 knots becoming northeast 15 to 20 knots with gusts to around 25 knots late in the afternoon. Slight chance of light sleet early in the morning. Snow through the day. Waves 8 to 13 feet subsiding to 7 to 10 feet late in the afternoon. Waves occasionally to 17 feet. .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 25 knots becoming northwest 10 to 15 knots with gusts to around 20 knots early in the morning. Chance of snow in the evening. Waves 5 to 8 feet subsiding to 3 to 5 feet after midnight. Waves occasionally to 10 feet. A small craft advisory may be needed. .SUNDAY...West wind 5 to 10 knots with gusts to around 20 knots becoming west 5 to 10 knots in the afternoon. Chance of rain and snow in the afternoon. Waves 1 to 3 feet. .SUNDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 25 knots. Chance of rain through the night. Chance of snow after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ144-041600- Two Harbors to Duluth MN- 143 AM CDT Sat Apr 4 2026 ...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON... .TODAY...East wind up to 30 knots with gales to around 35 knots becoming northeast 15 to 20 knots with gusts to around 30 knots in the afternoon. Slight chance of light sleet until late afternoon. Snow through the day. Slight chance of rain late in the morning. Waves 8 to 11 feet subsiding to 5 to 8 feet late in the afternoon. Waves occasionally to 15 feet. .TONIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots increasing to 25 knots in the late evening and early morning, then decreasing to 20 knots early in the morning. Snow likely in the evening. Waves 4 to 7 feet subsiding to 2 to 4 feet after midnight. Waves occasionally to 9 feet. A small craft advisory may be needed. .SUNDAY...West wind 10 to 15 knots. Gusts up to 20 knots early in the morning. Chance of rain in the afternoon. Waves 1 to 3 feet. .SUNDAY NIGHT...West wind 15 to 20 knots with gusts to around 25 knots. Chance of rain in the evening. Slight chance of snow through the night. Slight chance of rain after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ145-041600- Duluth MN to Port Wing WI- 143 AM CDT Sat Apr 4 2026 ...GALE WARNING IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...East wind up to 30 knots with gales to around 35 knots becoming northeast 15 to 20 knots with gusts to around 25 knots in the afternoon. Slight chance of rain, light sleet and freezing rain in the morning. Snow through the day. Waves 7 to 10 feet subsiding to 5 to 8 feet late in the afternoon. Waves occasionally to 13 feet. .TONIGHT...Northwest wind 15 to 20 knots with gusts to around 25 knots easing to 10 to 15 knots with gusts to around 20 knots early in the morning. Snow likely in the evening. Waves 4 to 7 feet subsiding to 2 to 4 feet after midnight. Waves occasionally to 9 feet. A small craft advisory may be needed. .SUNDAY...West wind 10 to 15 knots. Gusts up to 20 knots early in the morning. Chance of rain and snow in the afternoon. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late morning and afternoon. .SUNDAY NIGHT...West wind 15 to 20 knots with gusts to around 25 knots. Chance of rain in the evening, then slight chance of rain and snow after midnight. Waves 1 to 2 feet building to 1 to 3 feet early in the morning. Note...Wave height forecasts are for ice free areas. $$ LSZ146-041600- Port Wing to Sand Island WI- 143 AM CDT Sat Apr 4 2026 ...GALE WARNING IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...East wind up to 30 knots with gales to around 35 knots becoming northeast 15 to 20 knots with gusts to around 25 knots in the afternoon. Slight chance of light sleet and freezing rain in the morning. Snow and slight chance of rain through the day. Waves 7 to 10 feet subsiding to 5 to 8 feet late in the afternoon. Waves occasionally to 13 feet. .TONIGHT...North wind 5 to 15 knots with gusts to around 20 knots becoming northwest 15 to 20 knots with gusts to around 25 knots in the late evening and early morning, then easing to 5 to 15 knots with gusts to around 25 knots early in the morning. Snow likely in the evening. Waves 5 to 8 feet subsiding to 2 to 4 feet after midnight. Waves occasionally to 10 feet. A small craft advisory may be needed. .SUNDAY...West wind 10 to 15 knots with gusts to around 20 knots easing to 5 to 10 knots in the late morning and afternoon. Slight chance of rain and snow in the afternoon. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late morning and afternoon. .SUNDAY NIGHT...West wind 15 to 20 knots. Chance of rain through the night. Slight chance of snow after midnight. Waves 1 to 2 feet building to 1 to 3 feet early in the morning. Note...Wave height forecasts are for ice free areas. $$ LSZ147-041600- Sand Island to Bayfield WI- 143 AM CDT Sat Apr 4 2026 ...GALE WARNING IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...East wind up to 30 knots with gales to around 35 knots becoming northeast 15 to 20 knots with gusts to around 25 knots in the afternoon. Slight chance of freezing rain and light sleet in the morning. Snow and slight chance of rain through the day. Waves 7 to 10 feet. Waves occasionally to 13 feet. .TONIGHT...Northwest wind 15 to 20 knots. Gusts up to 25 knots. Snow likely in the evening, then slight chance of snow after midnight. Waves 5 to 8 feet subsiding to 4 to 6 feet in the late evening and overnight. Waves occasionally to 10 feet. A small craft advisory may be needed. .SUNDAY...West wind 10 to 15 knots with gusts to around 20 knots easing to 5 to 10 knots late in the afternoon. Slight chance of rain and snow in the afternoon. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late morning and afternoon. .SUNDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots early in the morning. Chance of rain and snow. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ150-041600- Outer Apostle Islands Beyond 5 NM from Mainland- 143 AM CDT Sat Apr 4 2026 ...GALE WARNING IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...Northeast wind up to 30 knots. Gusts up to 35 knots. Rain, freezing rain and slight chance of light sleet in the morning. Snow through the day. Slight chance of rain in the afternoon. Waves 8 to 13 feet subsiding to 7 to 10 feet late in the afternoon. Waves occasionally to 17 feet. .TONIGHT...North wind 15 to 20 knots becoming northwest after midnight. Gusts up to 25 knots. Snow likely in the evening, then slight chance of snow after midnight. Waves 6 to 9 feet subsiding to 4 to 6 feet after midnight. Waves occasionally to 12 feet. A small craft advisory may be needed. .SUNDAY...West wind 10 to 15 knots with gusts to around 25 knots easing to 5 to 10 knots late in the afternoon. Slight chance of rain and snow in the afternoon. Waves 2 to 4 feet subsiding to 1 to 2 feet in the afternoon. A small craft advisory may be needed. .SUNDAY NIGHT...West wind 5 to 10 knots becoming northwest 10 to 15 knots with gusts to around 20 knots early in the morning. Chance of rain through the night. Chance of snow after midnight. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ148-041600- Oak Point to Saxon Harbor WI- 143 AM CDT Sat Apr 4 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...Northeast wind 20 to 25 knots with gusts to around 30 knots easing to 10 to 15 knots with gusts to around 20 knots in the afternoon. Snow, light sleet, rain and freezing rain in the morning, then rain and snow likely in the afternoon. Waves 6 to 9 feet subsiding to 3 to 5 feet. Waves occasionally to 12 feet. .TONIGHT...Northwest wind 15 to 20 knots with gusts to around 25 knots. Snow likely in the evening, then chance of snow after midnight. Waves 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed. .SUNDAY...West wind 10 to 15 knots. Gusts up to 20 knots early in the morning. Slight chance of rain and snow in the afternoon. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late morning and afternoon. .SUNDAY NIGHT...West wind 10 to 15 knots with gusts to around 20 knots. Chance of rain and snow. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH