FZUS53 KDLH 010743 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 243 AM 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. LSZ140-011600- Grand Portage to Grand Marais MN- 243 AM CDT Wed Apr 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH THURSDAY MORNING... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY MORNING... .TODAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots late in the afternoon. Mostly sunny until late afternoon then becoming mostly cloudy. Waves 1 to 3 feet. .TONIGHT...East wind 15 to 20 knots. Gusts up to 25 knots in the late evening and overnight. Slight chance of snow 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 becoming northeast gales to 35 knots with gales to around 40 knots in the afternoon. Freezing spray through the day. Slight chance of snow in the morning. Snow in the afternoon. Waves 4 to 7 feet building to 7 to 12 feet in the late morning and afternoon. 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 and slight chance of light sleet in the evening. Slight chance of light freezing rain through the night. Snow and light sleet likely after midnight. Waves 7 to 12 feet subsiding to 4 to 6 feet. Waves occasionally to 15 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ141-011600- Grand Marais to Taconite Harbor MN- 243 AM CDT Wed Apr 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH THURSDAY MORNING... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TODAY...East wind 15 to 20 knots. Partly sunny until late afternoon then becoming cloudy. Waves 1 to 3 feet building to 2 to 4 feet in the afternoon. .TONIGHT...East wind 15 to 20 knots. Gusts up to 25 knots increasing to 30 knots early in the morning. Slight chance of snow after midnight. Waves 4 to 7 feet. Waves occasionally to 9 feet. .THURSDAY...East wind up to 30 knots. Gusts up to 35 knots increasing to 40 knots in the afternoon. Freezing spray in the morning. Snow likely in the morning, then snow in the afternoon. Waves 5 to 8 feet building to 9 to 14 feet. Waves occasionally to 18 feet. .THURSDAY NIGHT...Northeast wind up to 30 knots with gales to around 40 knots becoming north 10 to 15 knots with gusts to around 25 knots early in the morning. Snow and slight chance of light sleet. Waves 9 to 14 feet subsiding to 4 to 7 feet. Waves occasionally to 18 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ142-011600- Taconite Harbor to Silver Bay Harbor MN- 243 AM CDT Wed Apr 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH THURSDAY MORNING... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TODAY...East wind 15 to 20 knots. Gusts up to 25 knots. Slight chance of snow in the morning. Waves 1 to 3 feet subsiding to 3 to 5 feet in the afternoon. .TONIGHT...East wind 15 to 20 knots. Gusts up to 25 knots increasing to 30 knots early in the morning. Slight chance of snow through the night. Waves 4 to 7 feet. Waves occasionally to 9 feet. .THURSDAY...East wind up to 30 knots. Gusts up to 35 knots increasing to 40 knots in the late morning and afternoon. Freezing spray in the morning. Snow through the day. Slight chance of light sleet in the afternoon. Waves 5 to 8 feet building to 10 to 15 feet. Waves occasionally to 19 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. Snow and light sleet. Waves 10 to 15 feet subsiding to 5 to 8 feet. Waves occasionally to 19 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ143-011600- Silver Bay Harbor to Two Harbors MN- 243 AM CDT Wed Apr 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING THROUGH THURSDAY MORNING... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TODAY...Northeast wind 15 to 20 knots. Gusts up to 25 knots late in the afternoon. Slight chance of snow in the morning. Waves 2 to 4 feet subsiding to 3 to 5 feet in the afternoon. Waves occasionally to 7 feet. .TONIGHT...East wind 20 to 25 knots. Gusts up to 25 knots increasing to 30 knots in the late evening and overnight. Slight chance of snow through the night. Waves 4 to 7 feet. Waves occasionally to 9 feet. .THURSDAY...Northeast wind up to 30 knots. Gusts up to 35 knots increasing to 40 knots in the late morning and afternoon. Freezing spray in the morning. Snow through the day. Slight chance of light sleet in the afternoon. Waves 5 to 8 feet building to 10 to 15 feet. Waves occasionally to 19 feet. .THURSDAY NIGHT...Northeast wind up to 30 knots with gales to around 40 knots becoming north 15 to 20 knots with gusts to around 30 knots after midnight. Snow and light sleet. Waves 10 to 15 feet subsiding to 5 to 8 feet. Waves occasionally to 19 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ144-011600- Two Harbors to Duluth MN- 243 AM CDT Wed Apr 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING THROUGH THURSDAY MORNING... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TODAY...East wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots in the afternoon. Slight chance of snow in the morning. Waves 2 to 4 feet subsiding to 4 to 6 feet in the afternoon. Waves occasionally to 7 feet. .TONIGHT...East wind 20 to 25 knots with gusts to around 30 knots. Chance of snow through the night. Waves 4 to 7 feet. Waves occasionally to 9 feet. .THURSDAY...Northeast wind up to 30 knots. Gusts up to 35 knots increasing to 40 knots in the late morning and afternoon. Snow through the day. Slight chance of freezing rain and light sleet in the afternoon. Waves 5 to 8 feet building to 9 to 14 feet. Waves occasionally to 19 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 freezing rain in the evening. Snow and light sleet through the night. Waves 9 to 14 feet subsiding to 5 to 8 feet. Waves occasionally to 19 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ145-011600- Duluth MN to Port Wing WI- 243 AM CDT Wed Apr 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING THROUGH THURSDAY MORNING... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TODAY...East wind 20 to 25 knots. Slight chance of snow early in the morning. Waves 4 to 6 feet. Waves occasionally to 7 feet. .TONIGHT...East wind 20 to 25 knots. Gusts up to 30 knots late in the evening decreasing to 25 knots, then increasing to 30 knots early in the morning. Slight chance of snow in the evening, then chance of snow after midnight. Waves 4 to 7 feet. Waves occasionally to 9 feet. .THURSDAY...Northeast wind up to 30 knots with gales to around 40 knots rising to gales to 35 knots with gales to around 40 knots late in the afternoon. Snow through the day. Slight chance of freezing rain and light sleet in the afternoon. Waves 6 to 9 feet building to 8 to 13 feet in the afternoon. Waves occasionally to 17 feet. .THURSDAY NIGHT...Northeast gales to 35 knots with gales to around 40 knots easing to up to 30 knots with gales to around 40 knots in the late evening and early morning, then becoming north 10 to 15 knots with gusts to around 20 knots early in the morning. Slight chance of light freezing rain in the evening. Snow and light sleet through the night. Waves 9 to 14 feet subsiding to 5 to 8 feet. Waves occasionally to 18 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ146-011600- Port Wing to Sand Island WI- 243 AM CDT Wed Apr 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING THROUGH THURSDAY MORNING... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TODAY...East wind 15 to 20 knots. Gusts up to 25 knots late in the afternoon. Slight chance of snow early in the morning. Waves 3 to 5 feet. .TONIGHT...East wind 20 to 25 knots. Gusts up to 25 knots increasing to 30 knots early in the morning. Chance of snow. Waves 4 to 6 feet. Waves occasionally to 8 feet. .THURSDAY...East wind up to 30 knots with gales to around 40 knots rising to gales to 35 knots with gales to around 40 knots late in the afternoon. Snow through the day. Slight chance of freezing rain and light sleet in the afternoon. Waves 4 to 7 feet building to 8 to 13 feet. Waves occasionally to 16 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. Slight chance of freezing rain in the evening. Snow and light sleet through the night. Waves 8 to 13 feet subsiding to 5 to 8 feet early in the morning. Waves occasionally to 17 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ147-011600- Sand Island to Bayfield WI- 243 AM CDT Wed Apr 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH THURSDAY MORNING... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TODAY...East wind 15 to 20 knots. Gusts up to 25 knots. Mostly cloudy. Waves 2 to 4 feet. .TONIGHT...East wind 15 to 20 knots with gusts to around 25 knots. Slight chance of snow in the evening. Chance of snow after midnight. Waves 3 to 5 feet. Waves occasionally to 7 feet. .THURSDAY...East wind up to 30 knots. Gusts up to 30 knots increasing to 40 knots. Snow through the day. Slight chance of light sleet in the afternoon. Waves 4 to 6 feet building to 7 to 12 feet. Waves occasionally to 15 feet. .THURSDAY NIGHT...Northeast wind up to 30 knots with gales to around 40 knots becoming north 15 to 20 knots with gusts to around 25 knots early in the morning. Rain in the evening. Snow and light sleet through the night. Waves 8 to 13 feet subsiding to 6 to 9 feet early in the morning. Waves occasionally to 16 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ150-011600- Outer Apostle Islands Beyond 5 NM from Mainland- 243 AM CDT Wed Apr 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING THROUGH THURSDAY MORNING... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TODAY...East wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots late in the afternoon. Mostly cloudy. Waves 2 to 4 feet subsiding to 3 to 5 feet in the afternoon. Waves occasionally to 7 feet. .TONIGHT...East wind 20 to 25 knots with gusts to around 30 knots. Slight chance of snow. Waves 4 to 7 feet. Waves occasionally to 9 feet. .THURSDAY...East wind up to 30 knots with gales to around 40 knots rising to gales to 35 knots with gales to around 40 knots late in the afternoon. Snow through the day. Slight chance of freezing rain and light sleet in the afternoon. Waves 5 to 8 feet building to 9 to 14 feet. Waves occasionally to 19 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 25 knots early in the morning. Slight chance of freezing rain in the evening. Snow, light sleet and rain through the night. Waves 10 to 15 feet subsiding to 8 to 11 feet early in the morning. Waves occasionally to 19 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ148-011600- Oak Point to Saxon Harbor WI- 243 AM CDT Wed Apr 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH LATE THURSDAY NIGHT... .TODAY...Northeast wind 15 to 20 knots. Gusts up to 25 knots. Mostly cloudy. Waves 2 to 4 feet subsiding to 4 to 6 feet in the afternoon. Waves occasionally to 7 feet. .TONIGHT...East wind 15 to 20 knots with gusts to around 25 knots. Slight chance of snow in the evening. Snow likely after midnight. Waves 4 to 6 feet. Waves occasionally to 8 feet. .THURSDAY...Northeast wind 20 to 25 knots. Gusts up to 30 knots increasing to 35 knots in the afternoon. Snow likely and slight chance of light sleet in the morning, then snow, light sleet and rain in the afternoon. Waves 4 to 6 feet building to 7 to 12 feet. Waves occasionally to 15 feet. A gale warning may be needed. .THURSDAY NIGHT...Northeast wind 20 to 25 knots with gales to around 35 knots becoming north 15 to 20 knots early in the morning. Snow in the evening. Rain and light sleet through the night. Chance of snow after midnight. Waves 7 to 12 feet subsiding to 6 to 9 feet early in the morning. Waves occasionally to 16 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH