FZUS53 KDLH 211237 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 637 AM CST Sat Feb 21 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. LSZ140-211700- Grand Portage to Grand Marais MN- 637 AM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY MORNING... .TODAY...North wind 10 to 15 knots. Gusts up to 25 knots. Slight chance of snow. Waves 1 to 2 feet. .TONIGHT...North wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots in the late evening and overnight. Chance of flurries in the evening. Waves 1 to 2 feet. .SUNDAY...North wind 20 to 25 knots. Gusts up to 30 knots decreasing to 25 knots early in the afternoon, then increasing to 30 knots late in the afternoon. Mostly cloudy. Waves 1 to 2 feet. .SUNDAY NIGHT...North wind 20 to 25 knots with gusts to around 30 knots. Partly cloudy. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ141-211700- Grand Marais to Taconite Harbor MN- 637 AM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY EVENING... .TODAY...Northwest wind 5 to 10 knots. Gusts up to 25 knots decreasing to 20 knots late in the morning, then then 20 knots late in the afternoon. Chance of flurries through the day. Waves 1 to 2 feet. .TONIGHT...Northwest wind 10 knots rising to 10 to 15 knots in the late evening and overnight. Gusts up to 25 knots. Chance of flurries in the evening. Waves 1 to 2 feet. .SUNDAY...North wind 10 to 15 knots with gusts to around 25 knots. Partly sunny. Waves 1 to 2 feet. .SUNDAY NIGHT...North wind 10 to 15 knots. Gusts up to 30 knots decreasing to 20 knots. Partly cloudy. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ142-211700- Taconite Harbor to Silver Bay Harbor MN- 637 AM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY EVENING... .TODAY...Northwest wind 5 to 10 knots. Gusts up to 25 knots decreasing to 20 knots late in the morning, then then 20 knots late in the afternoon. Partly sunny. Waves 1 to 2 feet. .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 25 knots. Chance of flurries in the evening. Waves 1 to 2 feet. .SUNDAY...Northwest wind 10 to 15 knots with gusts to around 25 knots. Partly sunny. Waves 1 to 2 feet. .SUNDAY NIGHT...North wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots after midnight. Partly cloudy. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ143-211700- Silver Bay Harbor to Two Harbors MN- 637 AM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY EVENING... .TODAY...Northwest wind 5 to 10 knots. Chance of flurries until late afternoon. Waves 1 to 2 feet. .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 25 knots. Chance of flurries in the evening. Waves 1 to 2 feet. .SUNDAY...Northwest wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots early in the afternoon, then increasing to 25 knots late in the afternoon. Partly sunny. Waves 1 to 2 feet. .SUNDAY NIGHT...North wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots after midnight. Partly cloudy. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ144-211700- Two Harbors to Duluth MN- 637 AM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY EVENING... .TODAY...Northwest wind 10 to 15 knots. Chance of flurries until late afternoon. Waves 1 to 2 feet. .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots. Mostly cloudy. Waves 1 to 2 feet. .SUNDAY...Northwest wind 10 to 15 knots. Gusts up to 20 knots increasing to 25 knots late in the afternoon. Partly sunny. Waves 1 to 2 feet. .SUNDAY NIGHT...North wind 10 to 15 knots. Gusts up to 25 knots. Partly cloudy. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ145-211700- Duluth MN to Port Wing WI- 637 AM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY EVENING... .TODAY...Northwest wind 10 to 15 knots. Chance of flurries until late afternoon. Waves 1 to 2 feet. .TONIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots in the late evening and overnight. Mostly cloudy. Waves 1 to 2 feet. .SUNDAY...Northwest wind 15 to 20 knots. Partly sunny. Waves 1 to 3 feet. .SUNDAY NIGHT...North wind 10 to 15 knots. Gusts up to 20 knots until early morning. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ146-211700- Port Wing to Sand Island WI- 637 AM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY EVENING... .TODAY...Northwest wind 5 to 10 knots. Chance of flurries through the day. Waves 1 to 2 feet. .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots. Chance of flurries in the evening. Waves 1 to 3 feet. .SUNDAY...Northwest wind 15 to 20 knots. Gusts up to 25 knots. Chance of flurries in the morning. Waves 2 to 4 feet. .SUNDAY NIGHT...North wind 15 to 20 knots with gusts to around 25 knots easing to 10 knots with gusts to around 20 knots early in the morning. Mostly cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet early in the morning. Note...Wave height forecasts are for ice free areas. $$ LSZ150-211700- Outer Apostle Islands Beyond 5 NM from Mainland- 637 AM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE SUNDAY NIGHT... .TODAY...Northwest wind 10 to 15 knots with gusts to around 20 knots. Chance of flurries. Waves 1 to 3 feet. .TONIGHT...Northwest wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots in the late evening and overnight. Chance of flurries through the night. Waves 2 to 4 feet. .SUNDAY...Northwest wind 15 to 20 knots with gusts to around 25 knots. Chance of flurries in the morning, then slight chance of snow in the afternoon. Waves 3 to 5 feet. Waves occasionally to 7 feet. .SUNDAY NIGHT...North wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots early in the morning. Heavy freezing spray in the evening. Waves 4 to 6 feet. Waves occasionally to 7 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ148-211700- Oak Point to Saxon Harbor WI- 637 AM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE SUNDAY NIGHT... .TODAY...Northwest wind 5 to 10 knots. Chance of flurries. Waves 1 to 2 feet. .TONIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots in the late evening and overnight. Chance of flurries. Waves 1 to 3 feet. .SUNDAY...Northwest wind 15 to 20 knots with gusts to around 25 knots. Chance of snow in the morning, then slight chance of snow in the afternoon. Waves 2 to 4 feet. .SUNDAY NIGHT...North wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots early in the morning. Slight chance of snow. Waves 3 to 5 feet. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH