FZUS53 KDLH 191348 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 748 AM CST Thu Feb 19 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. LSZ140-191700- Grand Portage to Grand Marais MN- 748 AM CST Thu Feb 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northeast wind 20 to 25 knots. Gusts up to 35 knots decreasing to 25 knots. Snow in the morning, then snow likely early in the afternoon. Chance of snow late in the afternoon. Waves 6 to 9 feet subsiding to 4 to 6 feet late in the afternoon. Waves occasionally to 12 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the evening then 25 knots early in the morning. Chance of snow. Waves 3 to 5 feet subsiding to 1 to 3 feet early in the morning. Waves occasionally to 7 feet. .FRIDAY...North wind 15 to 20 knots with gusts to around 25 knots. Snow likely. Waves 1 to 2 feet building to 2 to 4 feet in the late morning and afternoon. .FRIDAY NIGHT...North wind 10 to 15 knots with gusts to around 20 knots. Chance of snow. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. Note...Wave height forecasts are for ice free areas. $$ LSZ141-191700- Grand Marais to Taconite Harbor MN- 748 AM CST Thu Feb 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northeast wind 15 to 20 knots. Gusts up to 35 knots decreasing to 20 knots. Snow likely in the morning, then chance of snow in the afternoon. Waves 1 foot or less building to 5 to 8 feet in the late morning and afternoon. Waves occasionally to 10 feet. .TONIGHT...North wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Slight chance of snow in the evening, then chance of snow after midnight. Waves 3 to 5 feet subsiding to 1 to 3 feet early in the morning. Waves occasionally to 7 feet. .FRIDAY...North wind 5 to 10 knots. Gusts up to 20 knots in the morning. Chance of snow. Waves 1 to 3 feet building to 2 to 4 feet in the afternoon. .FRIDAY NIGHT...North wind 5 to 10 knots. Chance of snow. Waves 2 to 4 feet subsiding to 1 to 2 feet early in the morning. Note...Wave height forecasts are for ice free areas. $$ LSZ142-191700- Taconite Harbor to Silver Bay Harbor MN- 748 AM CST Thu Feb 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON CST TODAY... .TODAY...Northeast wind 10 to 15 knots. Gusts up to 25 knots. Snow likely in the morning, then chance of snow in the afternoon. Waves 1 foot or less building to 5 to 8 feet in the late morning and afternoon. Waves occasionally to 10 feet. .TONIGHT...North wind 5 to 10 knots. Gusts up to 20 knots early in the morning. Slight chance of snow in the evening. Chance of snow after midnight. Waves 3 to 5 feet. Waves occasionally to 7 feet. A small craft advisory may be needed. .FRIDAY...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the morning. Chance of snow. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late morning and early afternoon, then building to 1 to 3 feet late in the afternoon. .FRIDAY NIGHT...Northwest wind 5 knots. Chance of snow. Waves 2 to 4 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ143-191700- Silver Bay Harbor to Two Harbors MN- 748 AM CST Thu Feb 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON CST TODAY... .TODAY...North wind 10 to 15 knots. Gusts up to 25 knots. Snow in the morning, then chance of snow in the afternoon. Waves 1 foot or less building to 4 to 7 feet in the late morning and afternoon. Waves occasionally to 9 feet. .TONIGHT...North wind 5 to 10 knots. Slight chance of snow in the evening. Chance of snow after midnight. Waves 3 to 5 feet. Waves occasionally to 7 feet. A small craft advisory may be needed. .FRIDAY...Northwest wind 5 to 10 knots. Chance of snow. Waves 1 to 3 feet. .FRIDAY NIGHT...Northwest wind 5 to 10 knots. Chance of snow. Waves 2 to 4 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ144-191700- Two Harbors to Duluth MN- 748 AM CST Thu Feb 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING... .TODAY...North wind 10 to 15 knots. Gusts up to 20 knots in the morning. Snow likely early in the morning, then chance of snow in the late morning and early afternoon. Slight chance of snow late in the afternoon. Waves 1 foot or less building to 4 to 6 feet in the late morning and afternoon. Waves occasionally to 8 feet. .TONIGHT...North wind 5 to 10 knots. Slight chance of snow after midnight. Waves 2 to 4 feet. A small craft advisory may be needed. .FRIDAY...Northwest wind 5 to 10 knots. Chance of snow. Waves 1 to 3 feet. .FRIDAY NIGHT...Northwest wind 5 to 10 knots. Chance of snow. Waves 2 to 4 feet subsiding to 1 to 3 feet early in the morning. Note...Wave height forecasts are for ice free areas. $$ LSZ145-191700- Duluth MN to Port Wing WI- 748 AM CST Thu Feb 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING... .TODAY...North wind 10 to 15 knots. Gusts up to 20 knots until late afternoon. Snow likely early in the morning, then chance of snow in the late morning and early afternoon. Slight chance of snow late in the afternoon. Waves 1 to 2 feet. .TONIGHT...North wind 5 knots becoming northwest early in the morning. Slight chance of snow. Waves 1 to 3 feet. .FRIDAY...Northwest wind 10 to 15 knots. Gusts up to 20 knots in the morning. Chance of snow. Waves 1 to 2 feet. .FRIDAY NIGHT...Northwest wind 5 to 10 knots. Slight chance of snow in the evening, then chance of snow after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ146-191700- Port Wing to Sand Island WI- 748 AM CST Thu Feb 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING... .TODAY...North wind 15 to 20 knots. Snow likely in the morning, then chance of snow early in the afternoon. Slight chance of snow late in the afternoon. Waves 1 to 2 feet. .TONIGHT...North wind 5 to 10 knots becoming northwest early in the morning. Slight chance of snow in the evening. Chance of snow after midnight. Waves 1 foot or less. .FRIDAY...Northwest wind 5 to 10 knots. Gusts up to 20 knots in the morning. Chance of snow. Waves 1 foot or less. .FRIDAY NIGHT...Northwest wind 5 to 10 knots. Chance of snow. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ150-191700- Outer Apostle Islands Beyond 5 NM from Mainland- 748 AM CST Thu Feb 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CST THIS AFTERNOON... .TODAY...Northeast wind 15 to 20 knots with gusts to around 25 knots becoming north 10 to 15 knots with gusts to around 20 knots late in the afternoon. Snow likely early in the morning, then chance of snow late in the morning. Slight chance of snow in the afternoon. Waves 1 to 3 feet. .TONIGHT...North wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Slight chance of snow in the evening, then chance of snow after midnight. Waves 1 foot or less. .FRIDAY...Northwest wind 10 to 15 knots. Gusts up to 20 knots until late afternoon. Chance of snow. Waves 1 foot or less. .FRIDAY NIGHT...Northwest wind 5 to 10 knots. Chance of snow. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ148-191700- Oak Point to Saxon Harbor WI- 748 AM CST Thu Feb 19 2026 .TODAY...Northwest wind 5 to 10 knots. Chance of snow in the morning, then slight chance of snow in the afternoon. Waves 1 to 3 feet. .TONIGHT...North wind 5 to 10 knots. Slight chance of snow in the evening, then chance of snow after midnight. Waves 1 foot or less. .FRIDAY...Northwest wind 10 to 15 knots with gusts to around 20 knots. Chance of snow. Waves 1 foot or less. .FRIDAY NIGHT...Northwest wind 5 to 10 knots. Chance of snow. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH