FZUS53 KDLH 012138 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 438 PM CDT Wed Apr 1 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. LSZ140-020400- Grand Portage to Grand Marais MN- 438 PM CDT Wed Apr 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY MORNING... .TONIGHT...East wind 15 to 20 knots with gusts to around 25 knots. Slight chance of snow showers after midnight. Waves 3 to 5 feet. .THURSDAY...East wind up to 30 knots with gales to around 35 knots becoming northeast gales to 35 knots with gales to around 45 knots in the afternoon. Slight chance of snow showers in the morning, then snow showers in the afternoon. Freezing spray in the afternoon. Waves 4 to 6 feet building to 7 to 12 feet. Waves occasionally to 15 feet. .THURSDAY NIGHT...Northeast gales to 35 knots with gales to around 45 knots easing to up to 30 knots with gales to around 45 knots in the late evening and overnight. Snow showers and slight chance of light sleet in the evening, then chance of snow showers after midnight. Waves 7 to 12 feet subsiding to 4 to 6 feet. Waves occasionally to 15 feet. .FRIDAY...North wind 15 to 20 knots with gusts to around 30 knots becoming northeast with gusts to around 25 knots late in the afternoon. Chance of snow showers in the morning. Slight chance of light freezing rain through the day. Slight chance of snow showers and light sleet in the afternoon. Waves 3 to 5 feet subsiding to 1 to 3 feet in the afternoon. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ141-020400- Grand Marais to Taconite Harbor MN- 438 PM CDT Wed Apr 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TONIGHT...East wind 15 to 20 knots. Gusts up to 25 knots increasing to 30 knots late in the night. Slight chance of snow showers until early morning. Waves 4 to 6 feet. Waves occasionally to 8 feet. .THURSDAY...East wind up to 30 knots with gales to around 35 knots rising to gales to 35 knots with gales to around 40 knots in the afternoon. Snow showers likely in the morning, then snow showers in the afternoon. Waves 4 to 7 feet building to 9 to 14 feet. Waves occasionally to 18 feet. .THURSDAY NIGHT...Northeast wind up to 30 knots with gales to around 45 knots becoming north 15 to 20 knots with gusts to around 25 knots early in the morning. Slight chance of light sleet in the evening. Snow showers through the night. Waves 9 to 14 feet subsiding to 4 to 7 feet. Waves occasionally to 18 feet. .FRIDAY...North wind 5 to 10 knots becoming northeast 10 to 15 knots in the afternoon. Gusts up to 20 knots. Chance of snow showers in the morning. Slight chance of light freezing rain through the day. Slight chance of snow showers and light sleet in the afternoon. Waves 3 to 5 feet subsiding to 1 to 3 feet in the afternoon. Waves occasionally to 7 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ142-020400- Taconite Harbor to Silver Bay Harbor MN- 438 PM CDT Wed Apr 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TONIGHT...East wind 15 to 20 knots with gusts to around 25 knots. Slight chance of snow showers until early morning. Waves 4 to 6 feet. Waves occasionally to 8 feet. .THURSDAY...East wind 20 to 25 knots with gales to around 35 knots becoming northeast gales to 35 knots with gales to around 40 knots in the afternoon. Snow showers likely in the morning, then snow showers in the afternoon. Waves 4 to 7 feet building to 10 to 15 feet. Waves occasionally to 20 feet. .THURSDAY NIGHT...Northeast wind up to 30 knots with gales to around 40 knots becoming north 15 to 20 knots with gusts to around 30 knots after midnight. Slight chance of light sleet in the evening. Snow showers through the night. Waves 10 to 15 feet subsiding to 5 to 8 feet. Waves occasionally to 20 feet. .FRIDAY...North wind 5 to 10 knots becoming east 10 to 15 knots with gusts to around 20 knots in the afternoon. Slight chance of snow showers and light sleet in the afternoon. Waves 4 to 6 feet subsiding to 2 to 4 feet in the afternoon. Waves occasionally to 8 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ143-020400- Silver Bay Harbor to Two Harbors MN- 438 PM CDT Wed Apr 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TONIGHT...East wind 20 to 25 knots. Gusts up to 30 knots late in the evening then 30 knots late in the night. Chance of snow showers in the evening, then slight chance of snow showers after midnight. Waves 4 to 7 feet. Waves occasionally to 9 feet. .THURSDAY...East wind up to 30 knots with gales to around 35 knots becoming northeast gales to 35 knots with gales to around 40 knots in the afternoon. Snow showers through the day. Slight chance of light sleet in the afternoon. Waves 7 to 10 feet building to 11 to 16 feet in the afternoon. Waves occasionally to 20 feet. .THURSDAY NIGHT...Northeast gales to 35 knots with gales to around 45 knots easing to 20 to 25 knots with gales to around 35 knots after midnight, then becoming north 10 to 15 knots with gusts to around 20 knots early in the morning. Slight chance of light sleet in the evening. Snow showers through the night. Waves 11 to 16 feet subsiding to 5 to 8 feet. Waves occasionally to 20 feet. .FRIDAY...North wind 5 to 10 knots becoming east 15 to 20 knots with gusts to around 25 knots in the afternoon. Slight chance of snow showers, light sleet and light freezing rain in the afternoon. Waves 4 to 6 feet subsiding to 2 to 4 feet in the afternoon. Waves occasionally to 8 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ144-020400- Two Harbors to Duluth MN- 438 PM CDT Wed Apr 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TONIGHT...East wind 20 to 25 knots. Gusts up to 30 knots in the evening then 30 knots late in the night. Chance of snow showers in the evening, then slight chance of snow showers after midnight. Waves 4 to 7 feet. Waves occasionally to 9 feet. .THURSDAY...East wind up to 30 knots with gales to around 35 knots becoming northeast gales to 35 knots with gales to around 40 knots in the afternoon. Snow showers through the day. Slight chance of light sleet in the afternoon. Waves 7 to 10 feet building to 11 to 16 feet. Waves occasionally to 20 feet. .THURSDAY NIGHT...Northeast gales to 35 knots with gales to around 45 knots easing to 20 to 25 knots with gusts to around 30 knots after midnight, then becoming north 10 to 15 knots with gusts to around 20 knots early in the morning. Light sleet in the evening. Snow showers through the night. Chance of light sleet after midnight. Waves 11 to 16 feet subsiding to 5 to 8 feet. Waves occasionally to 21 feet. .FRIDAY...North wind 10 to 15 knots becoming northeast with gusts to around 20 knots early in the afternoon, then becoming east 20 to 25 knots late in the afternoon. Chance of snow showers through the day. Chance of light sleet and light freezing rain in the afternoon. Waves 4 to 6 feet subsiding to 2 to 4 feet in the afternoon. Waves occasionally to 8 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ145-020400- Duluth MN to Port Wing WI- 438 PM CDT Wed Apr 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TONIGHT...East wind 20 to 25 knots. Gusts up to 30 knots early in the evening. Chance of snow showers until early morning, then slight chance of snow showers late in the night. Waves 4 to 7 feet. Waves occasionally to 9 feet. .THURSDAY...East wind up to 30 knots with gales to around 35 knots becoming northeast gales to 35 knots with gales to around 40 knots in the afternoon. Snow showers likely in the morning, then snow showers and slight chance of light sleet in the afternoon. Waves 6 to 9 feet building to 10 to 15 feet. Waves occasionally to 19 feet. .THURSDAY NIGHT...Northeast gales to 35 knots with gales to around 40 knots easing to up to 30 knots after midnight, then becoming north 15 to 20 knots early in the morning. Slight chance of light sleet in the evening. Snow showers through the night. Waves 10 to 15 feet subsiding to 5 to 8 feet. Waves occasionally to 19 feet. .FRIDAY...North wind 10 to 15 knots becoming northeast with gusts to around 20 knots early in the afternoon, then rising to 20 to 25 knots late in the afternoon. Chance of snow showers through the day. Chance of light sleet in the afternoon. Waves 3 to 5 feet subsiding to 2 to 4 feet in the afternoon. Waves occasionally to 7 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ146-020400- Port Wing to Sand Island WI- 438 PM CDT Wed Apr 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TONIGHT...East wind 20 to 25 knots. Chance of snow showers in the evening. Slight chance of snow showers after midnight. Waves 4 to 6 feet. Waves occasionally to 8 feet. .THURSDAY...East wind up to 30 knots with gales to around 35 knots rising to gales to 35 knots with gales to around 40 knots in the afternoon. Snow showers likely in the morning, then snow showers and slight chance of light sleet in the afternoon. Waves 5 to 8 feet building to 9 to 14 feet. Waves occasionally to 18 feet. .THURSDAY NIGHT...Northeast gales to 35 knots with gales to around 40 knots easing to up to 30 knots with gales to around 40 knots in the late evening and early morning, then becoming north 15 to 20 knots with gusts to around 25 knots early in the morning. Light sleet in the evening. Snow showers through the night. Waves 9 to 14 feet subsiding to 6 to 9 feet. Waves occasionally to 18 feet. .FRIDAY...North wind 10 to 15 knots with gusts to around 20 knots becoming northeast 15 to 20 knots with gusts to around 25 knots in the afternoon. Slight chance of snow showers, light freezing rain and light sleet in the afternoon. Waves 4 to 6 feet subsiding to 2 to 4 feet in the afternoon. Waves occasionally to 8 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ147-020400- Sand Island to Bayfield WI- 438 PM CDT Wed Apr 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TONIGHT...East wind 15 to 20 knots. Gusts up to 25 knots in the evening then 25 knots late in the night. Slight chance of snow showers early in the evening, then chance of snow showers in the late evening and early morning. Slight chance of snow showers late in the night. Waves 3 to 5 feet. Waves occasionally to 7 feet. .THURSDAY...East wind up to 30 knots with gales to around 35 knots rising to gales to 35 knots late in the afternoon. Snow showers through the day. Slight chance of light sleet in the afternoon. Waves 4 to 7 feet building to 7 to 12 feet. Waves occasionally to 16 feet. .THURSDAY NIGHT...Northeast wind up to 30 knots with gales to around 35 knots becoming north 15 to 20 knots with gusts to around 25 knots early in the morning. Light sleet in the evening. Snow showers through the night. Slight chance of light sleet after midnight. Waves 7 to 12 feet subsiding to 6 to 9 feet early in the morning. Waves occasionally to 16 feet. .FRIDAY...North wind 10 to 15 knots with gusts to around 20 knots becoming northeast late in the morning, then rising to 10 to 15 knots with gusts to around 20 knots in the afternoon. Slight chance of light freezing rain, snow showers and light sleet in the afternoon. Waves 4 to 6 feet subsiding to 2 to 4 feet in the afternoon. Waves occasionally to 8 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ150-020400- Outer Apostle Islands Beyond 5 NM from Mainland- 438 PM CDT Wed Apr 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TONIGHT...East wind 15 to 20 knots with gusts to around 25 knots. Slight chance of snow showers through the night. Waves 4 to 6 feet. Waves occasionally to 8 feet. .THURSDAY...East wind up to 30 knots with gales to around 35 knots rising to gales to 35 knots with gales to around 40 knots late in the afternoon. Snow showers through the day. Slight chance of light sleet in the afternoon. Waves 4 to 6 feet building to 9 to 14 feet. Waves occasionally to 19 feet. .THURSDAY NIGHT...Northeast gales to 35 knots with gales to around 40 knots easing to up to 30 knots with gales to around 40 knots in the late evening and early morning, then becoming north 15 to 20 knots with gusts to around 25 knots early in the morning. Snow showers and slight chance of light sleet. Waves 10 to 15 feet subsiding to 7 to 12 feet early in the morning. Waves occasionally to 19 feet. .FRIDAY...North wind 10 to 15 knots with gusts to around 20 knots becoming northeast 15 to 20 knots with gusts to around 25 knots in the afternoon. Slight chance of light freezing rain, snow showers and light sleet in the afternoon. Waves 6 to 9 feet subsiding to 4 to 7 feet in the late morning and afternoon. Waves occasionally to 12 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ148-020400- Oak Point to Saxon Harbor WI- 438 PM CDT Wed Apr 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT... .TONIGHT...East wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots after midnight. Slight chance of snow showers in the evening, then chance of snow showers after midnight. Slight chance of snow showers late in the night. Waves 4 to 6 feet. Waves occasionally to 8 feet. .THURSDAY...Northeast wind 20 to 25 knots. Gusts up to 30 knots. Snow showers likely in the morning, then snow showers and sleet in the afternoon. Waves 4 to 6 feet building to 7 to 12 feet. Waves occasionally to 15 feet. .THURSDAY NIGHT...Northeast wind 20 to 25 knots with gales to around 35 knots becoming north 15 to 20 knots with gusts to around 25 knots early in the morning. Light sleet and light freezing rain in the evening. Snow showers through the night. Slight chance of light sleet after midnight. Waves 7 to 12 feet subsiding to 6 to 9 feet early in the morning. Waves occasionally to 16 feet. A gale warning may be needed. .FRIDAY...North wind 10 to 15 knots with gusts to around 20 knots becoming northeast 15 to 20 knots late in the afternoon. Slight chance of rain showers and light freezing rain in the afternoon. Waves 5 to 8 feet subsiding to 3 to 5 feet in the afternoon. Waves occasionally to 11 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH