FZUS53 KDLH 100118 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 818 PM 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. LSZ140-101000- Grand Portage to Grand Marais MN- 818 PM CDT Thu Apr 9 2026 .REST OF TONIGHT...West wind 5 knots becoming northwest in the late evening and overnight. Mostly cloudy. Waves 1 to 2 feet. .FRIDAY...West wind 5 to 10 knots becoming southwest 10 to 15 knots with gusts to around 20 knots in the afternoon. Mostly sunny. Waves 1 to 2 feet. .FRIDAY NIGHT...West wind 10 to 15 knots becoming northwest 5 to 10 knots after midnight. Partly cloudy. Waves 1 to 2 feet. .SATURDAY...Northwest wind 5 knots becoming south in the late morning and early afternoon, then becoming southeast late in the afternoon. Mostly sunny. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ141-101000- Grand Marais to Taconite Harbor MN- 818 PM CDT Thu Apr 9 2026 .REST OF TONIGHT...Northwest wind 5 knots. Mostly cloudy then becoming partly cloudy after midnight then becoming mostly cloudy. Waves 1 foot or less. .FRIDAY...Northwest wind 5 knots becoming southwest in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 knots becoming northwest in the late evening and early morning, then becoming variable 10 knots or less early in the morning. Mostly clear. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less becoming southeast 5 knots in the late morning and early afternoon, then becoming east late in the afternoon. Slight chance of rain showers and snow showers in the afternoon. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ142-101000- Taconite Harbor to Silver Bay Harbor MN- 818 PM CDT Thu Apr 9 2026 .REST OF TONIGHT...Variable winds 10 knots or less becoming northwest 5 knots after midnight. Mostly cloudy. Waves 1 foot or less. .FRIDAY...West wind 5 knots becoming southwest in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 knots becoming northwest in the late evening and early morning, then becoming variable 10 knots or less early in the morning. Mostly clear. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less becoming east 5 knots in the afternoon. Slight chance of rain showers in the afternoon. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ143-101000- Silver Bay Harbor to Two Harbors MN- 818 PM CDT Thu Apr 9 2026 .REST OF TONIGHT...Northwest wind 5 knots. Mostly cloudy. Waves 1 foot or less. .FRIDAY...West wind 5 knots becoming southwest in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...Southwest wind 5 knots becoming northwest in the late evening and early morning, then becoming variable 10 knots or less early in the morning. Mostly clear. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less becoming east 5 knots in the late morning and early afternoon, then rising to 5 to 10 knots late in the afternoon. Chance of rain showers in the afternoon. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ144-101000- Two Harbors to Duluth MN- 818 PM CDT Thu Apr 9 2026 .REST OF TONIGHT...Northwest wind 5 knots. Mostly cloudy. Waves 1 foot or less. .FRIDAY...West wind 5 knots becoming southwest in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 knots becoming northwest in the late evening and overnight. Mostly clear. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less becoming east 5 to 10 knots in the late morning and afternoon. Chance of rain showers in the afternoon. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ145-101000- Duluth MN to Port Wing WI- 818 PM CDT Thu Apr 9 2026 .REST OF TONIGHT...Northwest wind 5 knots. Chance of sprinkles early in the evening. Chance of flurries late in the evening. Waves 1 foot or less. .FRIDAY...West wind 5 to 10 knots becoming southwest in the afternoon. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...Southwest wind 5 knots. Mostly clear. Waves 1 foot or less. .SATURDAY...South wind 5 knots becoming east late in the afternoon. Chance of rain showers in the afternoon. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ146-101000- Port Wing to Sand Island WI- 818 PM CDT Thu Apr 9 2026 .REST OF TONIGHT...Northwest wind 5 knots. Chance of flurries late in the evening. Waves 1 foot or less. .FRIDAY...West wind 5 knots becoming southwest in the afternoon. Mostly 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. .SATURDAY...Variable winds 10 knots or less becoming southeast 5 knots late in the morning, then becoming east in the afternoon. Chance of rain showers in the afternoon. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ147-101000- Sand Island to Bayfield WI- 818 PM CDT Thu Apr 9 2026 .REST OF TONIGHT...West wind 5 knots. Mostly cloudy. Waves 1 foot or less. .FRIDAY...West wind 5 knots. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...Southwest wind 5 knots until early morning becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less becoming south 5 knots late in the morning, then becoming east in the afternoon. Chance of rain showers in the afternoon. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ150-101000- Outer Apostle Islands Beyond 5 NM from Mainland- 818 PM CDT Thu Apr 9 2026 .REST OF 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...Southwest wind 5 knots. Mostly clear. Waves 1 foot or less. .SATURDAY...Southwest wind 5 knots becoming east in the afternoon. Slight chance of rain showers in the afternoon. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ148-101000- Oak Point to Saxon Harbor WI- 818 PM CDT Thu Apr 9 2026 .REST OF TONIGHT...West wind 5 knots. Chance of sprinkles and flurries late in the evening. Waves 1 foot or less. .FRIDAY...West wind 5 knots becoming southwest late in the afternoon. Partly sunny in the morning then clearing. Waves 1 foot or less. .FRIDAY NIGHT...Southwest wind 5 knots. Mostly clear. Waves 1 foot or less. .SATURDAY...South wind 5 knots becoming southeast in the afternoon. Chance of rain showers in the afternoon. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH