FZUS53 KDLH 170622 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 122 AM CDT Sat Oct 17 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. LSZ140-171600- Grand Portage to Grand Marais MN- 122 AM CDT Sat Oct 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...Southwest wind 20 to 25 knots with gusts to around 30 knots. Sunny. Waves 6 to 9 feet. Waves occasionally to 12 feet. .TONIGHT...Southwest wind up to 30 knots with gales to around 40 knots. Mostly clear. Waves 8 to 11 feet. Waves occasionally to 14 feet. A gale warning may be needed. .SUNDAY...Southwest wind up to 30 knots. Gales up to 40 knots decreasing to 35 knots late in the afternoon. Mostly sunny. Waves 7 to 12 feet. Waves occasionally to 15 feet. A gale warning may be needed. .SUNDAY NIGHT...Southwest wind 20 to 25 knots with gusts to around 30 knots becoming west 10 to 15 knots with gusts to around 20 knots in the late evening and early morning, then becoming northwest 5 knots early in the morning. Mostly clear. Waves 5 to 8 feet subsiding to 1 to 3 feet. Waves occasionally to 10 feet. $$ LSZ141-171600- Grand Marais to Taconite Harbor MN- 122 AM CDT Sat Oct 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING... .TODAY...Southwest wind 20 to 25 knots with gusts to around 30 knots. Sunny. Waves 5 to 8 feet. Waves occasionally to 10 feet. .TONIGHT...Southwest wind 20 to 25 knots with gusts to around 30 knots. Mostly clear. Waves 5 to 8 feet. Waves occasionally to 11 feet. .SUNDAY...Southwest wind 20 to 25 knots. Gusts up to 35 knots decreasing to 30 knots in the late morning and afternoon. Sunny. Waves 6 to 9 feet. Waves occasionally to 11 feet. A gale warning may be needed. .SUNDAY NIGHT...West wind 10 to 15 knots with gusts to around 25 knots becoming northwest 5 knots after midnight. Mostly clear. Waves 4 to 6 feet subsiding to 1 to 2 feet. Waves occasionally to 7 feet. A small craft advisory may be needed. $$ LSZ142-171600- Taconite Harbor to Silver Bay Harbor MN- 122 AM CDT Sat Oct 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING... .TODAY...Southwest wind 15 to 20 knots. Gusts up to 30 knots decreasing to 25 knots late in the afternoon. Sunny. Waves 4 to 6 feet. Waves occasionally to 7 feet. .TONIGHT...Southwest wind 15 to 20 knots. Gusts up to 30 knots increasing to 35 knots after midnight. Mostly clear. Waves 4 to 6 feet. Waves occasionally to 8 feet. A gale warning may be needed. .SUNDAY...Southwest wind 15 to 20 knots. Gusts up to 35 knots decreasing to 30 knots in the afternoon. Sunny. Waves 4 to 6 feet. Waves occasionally to 8 feet. A gale warning may be needed. .SUNDAY NIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots becoming west 5 knots after midnight. Mostly clear. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late evening and overnight. $$ LSZ143-171600- Silver Bay Harbor to Two Harbors MN- 122 AM CDT Sat Oct 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING... .TODAY...Southwest wind 15 to 20 knots with gusts to around 30 knots. Sunny. Waves 4 to 6 feet. Waves occasionally to 7 feet. .TONIGHT...Southwest wind 15 to 20 knots. Gusts up to 30 knots increasing to 35 knots after midnight. Mostly clear. Waves 4 to 6 feet. Waves occasionally to 8 feet. A gale warning may be needed. .SUNDAY...Southwest wind 15 to 20 knots. Gusts up to 35 knots decreasing to 30 knots in the afternoon. Sunny. Waves 4 to 6 feet subsiding to 2 to 4 feet late in the afternoon. Waves occasionally to 8 feet. A gale warning may be needed. .SUNDAY NIGHT...Southwest wind 5 to 10 knots with gusts to around 20 knots becoming west early in the morning. Mostly clear. Waves 1 to 3 feet. $$ LSZ144-171600- Two Harbors to Duluth MN- 122 AM CDT Sat Oct 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING... .TODAY...Southwest wind 15 to 20 knots. Gusts up to 30 knots decreasing to 25 knots late in the afternoon. Sunny. Waves 3 to 5 feet. .TONIGHT...Southwest wind 15 to 20 knots with gusts to around 30 knots. Mostly clear. Waves 3 to 5 feet. Waves occasionally to 7 feet. .SUNDAY...Southwest wind 15 to 20 knots. Gusts up to 35 knots decreasing to 25 knots. Sunny. Waves 3 to 5 feet subsiding to 1 to 3 feet late in the afternoon. Waves occasionally to 7 feet. A gale warning may be needed. .SUNDAY NIGHT...Southwest wind 5 to 10 knots with gusts to around 20 knots becoming west early in the morning. Mostly clear. Waves 1 to 2 feet. $$ LSZ145-171600- Duluth MN to Port Wing WI- 122 AM CDT Sat Oct 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING... .TODAY...Southwest wind 20 to 25 knots with gusts to around 30 knots. Sunny. Waves 3 to 5 feet. .TONIGHT...Southwest wind 20 to 25 knots. Gusts up to 30 knots increasing to 35 knots in the late evening and overnight. Mostly clear. Waves 3 to 5 feet. A gale warning may be needed. .SUNDAY...Southwest wind 20 to 25 knots with gales to around 35 knots easing to 10 to 15 knots with gusts to around 20 knots late in the afternoon. Sunny. Waves 3 to 5 feet subsiding to 1 to 3 feet late in the afternoon. A gale warning may be needed. .SUNDAY NIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots after midnight. Mostly clear. Waves 1 to 2 feet. $$ LSZ146-171600- Port Wing to Sand Island WI- 122 AM CDT Sat Oct 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING... .TODAY...Southwest wind 20 to 25 knots. Gusts up to 35 knots decreasing to 30 knots late in the afternoon. Sunny. Waves 4 to 7 feet. Waves occasionally to 9 feet. .TONIGHT...Southwest wind 20 to 25 knots. Gusts up to 30 knots increasing to 35 knots in the late evening and overnight. Mostly clear. Waves 4 to 6 feet. Waves occasionally to 8 feet. A gale warning may be needed. .SUNDAY...Southwest wind 20 to 25 knots. Gusts up to 35 knots decreasing to 25 knots. Sunny. Waves 4 to 6 feet subsiding to 2 to 4 feet late in the afternoon. Waves occasionally to 8 feet. A gale warning may be needed. .SUNDAY NIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 to 10 knots in the late evening and overnight. Mostly clear. Waves 1 to 3 feet. $$ LSZ147-171600- Sand Island to Bayfield WI- 122 AM CDT Sat Oct 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING... .TODAY...Southwest wind 20 to 25 knots. Gusts up to 35 knots decreasing to 30 knots late in the afternoon. Sunny. Waves 4 to 6 feet. Waves occasionally to 8 feet. .TONIGHT...Southwest wind 5 to 15 knots with gusts to around 30 knots rising to 15 to 20 knots with gales to around 35 knots in the late evening and overnight. Clear. Waves 3 to 5 feet. Waves occasionally to 7 feet. A gale warning may be needed. .SUNDAY...Southwest wind 20 to 25 knots. Gusts up to 35 knots decreasing to 25 knots. Sunny. Waves 4 to 6 feet subsiding to 2 to 4 feet late in the afternoon. Waves occasionally to 8 feet. A gale warning may be needed. .SUNDAY NIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots becoming west 5 knots early in the morning. Mostly clear. Waves 1 to 3 feet. $$ LSZ150-171600- Outer Apostle Islands Beyond 5 NM from Mainland- 122 AM CDT Sat Oct 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING... .TODAY...Southwest wind up to 30 knots easing to 15 to 20 knots late in the afternoon. Gusts up to 35 knots decreasing to 30 knots late in the afternoon. Sunny. Waves 5 to 8 feet subsiding to 4 to 6 feet late in the afternoon. Waves occasionally to 10 feet. .TONIGHT...Southwest wind 20 to 25 knots. Gusts up to 30 knots increasing to 35 knots in the late evening and overnight. Mostly clear. Waves 4 to 7 feet. Waves occasionally to 9 feet. A gale warning may be needed. .SUNDAY...Southwest wind 20 to 25 knots. Gusts up to 35 knots decreasing to 30 knots late in the afternoon. Sunny. Waves 5 to 8 feet subsiding to 3 to 5 feet late in the afternoon. Waves occasionally to 10 feet. A gale warning may be needed. .SUNDAY NIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots becoming west 5 knots early in the morning. Mostly clear. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and overnight. $$ LSZ121-171600- Chequamegon Bay-Bayfield to Oak Point WI- 122 AM CDT Sat Oct 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING... .TODAY...Southwest wind 10 to 15 knots. Gusts up to 25 knots increasing to 30 knots in the late morning and early afternoon, then decreasing to 25 knots late in the afternoon. Sunny. Waves 1 to 2 feet. .TONIGHT...Southwest wind 15 to 20 knots with gusts to around 30 knots. Clear. Waves 1 to 2 feet. .SUNDAY...Southwest wind 15 to 20 knots. Gusts up to 30 knots decreasing to 25 knots late in the afternoon. Sunny. Waves 1 to 2 feet. .SUNDAY NIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Mostly clear. Waves 1 foot or less. $$ LSZ148-171600- Oak Point to Saxon Harbor WI- 122 AM CDT Sat Oct 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING... .TODAY...Southwest wind 15 to 20 knots with gusts to around 30 knots. Sunny. Waves 1 to 3 feet. .TONIGHT...Southwest wind 5 to 15 knots with gusts to around 30 knots rising to 15 to 20 knots with gales to around 35 knots in the late evening and overnight. Clear. Waves 1 to 3 feet building to 2 to 4 feet after midnight. A gale warning may be needed. .SUNDAY...Southwest wind 15 to 20 knots. Gusts up to 35 knots decreasing to 25 knots. Sunny. Waves 2 to 4 feet subsiding to 1 to 2 feet late in the afternoon. A gale warning may be needed. .SUNDAY NIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Mostly clear. Waves 1 to 2 feet. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH