FZUS53 KDLH 101821 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 121 PM CDT Fri Apr 10 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. LSZ140-102200- Grand Portage to Grand Marais MN- 121 PM CDT Fri Apr 10 2026 .REST OF TODAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots late. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...West wind 10 to 15 knots becoming northwest 5 to 10 knots after midnight. Partly cloudy. Waves 1 to 2 feet. .SATURDAY...North wind 5 knots becoming southeast in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...East wind 10 to 15 knots becoming southeast with gusts to around 20 knots after midnight. Rain likely in the evening, then rain after midnight. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ141-102200- Grand Marais to Taconite Harbor MN- 121 PM CDT Fri Apr 10 2026 .REST OF TODAY...Southwest wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 knots becoming northwest in the late evening and overnight. Partly cloudy. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less becoming east 5 to 10 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...East wind 5 to 10 knots. Rain likely in the evening. Slight chance of thunderstorms through the night. Rain after midnight. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ142-102200- Taconite Harbor to Silver Bay Harbor MN- 121 PM CDT Fri Apr 10 2026 .REST OF TODAY...Southwest wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .TONIGHT...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 northeast 5 to 10 knots in the afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...East wind 5 to 10 knots. Rain and slight chance of thunderstorms. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ143-102200- Silver Bay Harbor to Two Harbors MN- 121 PM CDT Fri Apr 10 2026 .REST OF TODAY...Southwest wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .TONIGHT...West wind 5 knots becoming northwest in the late evening and early morning, then becoming variable 10 knots or less early in the morning. Partly cloudy. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less becoming northeast 5 to 10 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...Northeast wind 5 to 10 knots. Chance of thunderstorms in the evening. Rain through the night. Slight chance of thunderstorms after midnight. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ144-102200- Two Harbors to Duluth MN- 121 PM CDT Fri Apr 10 2026 .REST OF TODAY...Southwest wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .TONIGHT...Northwest wind 5 knots. Mostly clear. Waves 1 foot or less. .SATURDAY...Northeast wind 5 to 10 knots. Chance of rain in the afternoon. Waves 1 foot or less. .SATURDAY NIGHT...East wind 10 to 15 knots. Rain and chance of thunderstorms. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ145-102200- Duluth MN to Port Wing WI- 121 PM CDT Fri Apr 10 2026 .REST OF TODAY...Southwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. .TONIGHT...West wind 5 knots becoming southwest early in the morning. Mostly clear. Waves 1 foot or less. .SATURDAY...Southeast wind 5 knots becoming east in the late morning and afternoon. Chance of rain in the afternoon. Waves 1 foot or less. .SATURDAY NIGHT...East wind 10 to 15 knots. Rain and chance of thunderstorms. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ146-102200- Port Wing to Sand Island WI- 121 PM CDT Fri Apr 10 2026 .REST OF TODAY...Southwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 knots. Mostly clear. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less becoming northeast 5 to 10 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...East wind 5 to 10 knots. Rain and chance of thunderstorms. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ147-102200- Sand Island to Bayfield WI- 121 PM CDT Fri Apr 10 2026 .REST OF TODAY...Southwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 knots. Mostly clear. Waves 1 foot or less. .SATURDAY...South wind 5 knots becoming east in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...Southeast wind 5 to 10 knots. Chance of rain and slight chance of thunderstorms in the evening, then rain and chance of thunderstorms after midnight. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ150-102200- Outer Apostle Islands Beyond 5 NM from Mainland- 121 PM CDT Fri Apr 10 2026 .REST OF TODAY...Southwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 knots. Mostly clear. Waves 1 foot or less. .SATURDAY...South wind 5 knots becoming east in the afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...Southeast wind 10 to 15 knots. Rain and slight chance of thunderstorms. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ148-102200- Oak Point to Saxon Harbor WI- 121 PM CDT Fri Apr 10 2026 .REST OF TODAY...West wind 5 knots becoming south late. Sunny. Waves 1 foot or less. .TONIGHT...South wind 5 knots becoming southwest after midnight. Mostly clear. Waves 1 foot or less. .SATURDAY...South wind 5 knots becoming east in the afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...Southeast wind 10 to 15 knots. Gusts up to 20 knots after midnight. Rain and chance of thunderstorms. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH