FZUS53 KDLH 090624 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 124 AM CDT Thu Apr 9 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. LSZ140-091600- Grand Portage to Grand Marais MN- 124 AM CDT Thu Apr 9 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...West wind 15 to 20 knots with gusts to around 25 knots easing to 5 to 10 knots late in the afternoon. Partly sunny. Waves 3 to 5 feet. .TONIGHT...West wind 5 to 10 knots becoming northwest in the late evening and overnight. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 2 feet. .FRIDAY...West wind 5 to 10 knots becoming southwest 10 to 15 knots in the afternoon. Mostly sunny. Waves 1 to 2 feet. .FRIDAY NIGHT...West wind 10 to 15 knots becoming northwest 5 knots after midnight. Mostly clear. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ141-091600- Grand Marais to Taconite Harbor MN- 124 AM CDT Thu Apr 9 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...West wind 15 to 20 knots with gusts to around 25 knots easing to 5 to 10 knots late in the afternoon. Partly sunny. Waves 1 to 3 feet. .TONIGHT...Northwest wind 5 knots. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 foot or less. .FRIDAY...West wind 5 knots becoming southwest in the afternoon. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 knots becoming northwest late in the evening, then becoming variable 10 knots or less after midnight. Mostly clear. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ142-091600- Taconite Harbor to Silver Bay Harbor MN- 124 AM CDT Thu Apr 9 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...West wind 10 to 15 knots with gusts to around 25 knots easing to 5 knots late in the afternoon. Partly sunny. Waves 1 to 3 feet. .TONIGHT...West wind 5 knots early in the evening becoming variable 10 knots or less, then becoming northwest 5 knots after midnight. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 foot or less. .FRIDAY...West wind 5 knots becoming southwest in the afternoon. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ143-091600- Silver Bay Harbor to Two Harbors MN- 124 AM CDT Thu Apr 9 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...West wind 10 to 15 knots. Gusts up to 25 knots. Partly sunny. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late morning and afternoon. .TONIGHT...Northwest wind 5 knots. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 foot or less. .FRIDAY...West wind 5 knots becoming southwest in the afternoon. Sunny. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ144-091600- Two Harbors to Duluth MN- 124 AM CDT Thu Apr 9 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...West wind 10 to 15 knots. Gusts up to 25 knots. Mostly cloudy. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late morning and afternoon. .TONIGHT...Northwest wind 5 knots. Mostly cloudy. Waves 1 foot or less. .FRIDAY...West wind 5 knots becoming southwest in the afternoon. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 knots until early morning becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ145-091600- Duluth MN to Port Wing WI- 124 AM CDT Thu Apr 9 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...West wind 15 to 20 knots with gusts to around 25 knots easing to 5 to 10 knots with gusts to around 20 knots in the afternoon. Mostly cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet in the afternoon. .TONIGHT...West wind 5 knots. Mostly cloudy. Waves 1 foot or less. .FRIDAY...West wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...Southwest wind 5 knots. Mostly clear. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ146-091600- Port Wing to Sand Island WI- 124 AM CDT Thu Apr 9 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...West wind 15 to 20 knots with gusts to around 25 knots easing to 5 to 10 knots late in the afternoon. Partly sunny. Waves 3 to 5 feet subsiding to 1 to 3 feet in the afternoon. .TONIGHT...West wind 5 knots. Mostly cloudy. Waves 1 foot or less. .FRIDAY...West wind 5 knots becoming southwest late in the afternoon. Sunny. Waves 1 foot or less. .FRIDAY NIGHT...Southwest wind 5 knots until early morning becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ147-091600- Sand Island to Bayfield WI- 124 AM CDT Thu Apr 9 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...West wind 15 to 20 knots with gusts to around 25 knots easing to 5 to 10 knots late in the afternoon. Partly sunny. Waves 3 to 5 feet subsiding to 1 to 3 feet in the afternoon. .TONIGHT...West wind 5 knots early in the evening becoming variable 10 knots or less, then becoming northwest 5 knots after midnight. Mostly cloudy. Waves 1 foot or less. .FRIDAY...West wind 5 knots becoming southwest late in the afternoon. Sunny. Waves 1 foot or less. .FRIDAY NIGHT...Southwest wind 5 knots. Mostly clear. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ150-091600- Outer Apostle Islands Beyond 5 NM from Mainland- 124 AM CDT Thu Apr 9 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...West wind 15 to 20 knots. Gusts up to 30 knots decreasing to 20 knots. Partly sunny. Waves 3 to 5 feet subsiding to 1 to 2 feet late in the afternoon. .TONIGHT...West wind 5 knots becoming northwest after midnight. Mostly cloudy. Waves 1 foot or less. .FRIDAY...West wind 5 knots becoming southwest late in the afternoon. Sunny. Waves 1 foot or less. .FRIDAY NIGHT...Southwest wind 5 knots. Mostly clear. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ148-091600- Oak Point to Saxon Harbor WI- 124 AM CDT Thu Apr 9 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...West wind 15 to 20 knots with gusts to around 25 knots easing to 5 to 10 knots late in the afternoon. Partly sunny. Waves 1 to 3 feet. .TONIGHT...West wind 5 knots. Mostly cloudy. Waves 1 foot or less. .FRIDAY...West wind 5 knots becoming southwest late in the afternoon. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...Southwest wind 5 knots. Mostly clear. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH