FZUS53 KDLH 102239 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 539 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. LSZ140-110400- Grand Portage to Grand Marais MN- 539 PM CDT Fri Apr 10 2026 .TONIGHT...West wind 10 to 15 knots becoming northwest 5 knots late in the night. 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. .SUNDAY...East wind 10 to 15 knots. Gusts up to 20 knots early in the morning. Rain through the day. Slight chance of thunderstorms in the afternoon. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ141-110400- Grand Marais to Taconite Harbor MN- 539 PM CDT Fri Apr 10 2026 .TONIGHT...West wind 5 to 10 knots becoming northwest after midnight. Partly cloudy. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less becoming east 5 to 10 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...East wind 5 to 10 knots. Rain likely in the evening. Slight chance of thunderstorms through the night. Rain after midnight. Waves 1 to 3 feet. .SUNDAY...East wind 5 to 10 knots. Rain through the day. Slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ142-110400- Taconite Harbor to Silver Bay Harbor MN- 539 PM CDT Fri Apr 10 2026 .TONIGHT...West 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 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. .SUNDAY...Northeast wind 5 to 10 knots. Rain through the day. Slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ143-110400- Silver Bay Harbor to Two Harbors MN- 539 PM CDT Fri Apr 10 2026 .TONIGHT...West wind 5 to 10 knots becoming northwest in the late evening and early morning, then becoming variable 10 knots or less late in the night. Partly cloudy. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less becoming northeast 5 to 10 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...Northeast wind 5 to 10 knots. Chance of thunderstorms in the evening. Rain through the night. Slight chance of thunderstorms after midnight. Waves 1 foot or less. .SUNDAY...Northeast wind 5 to 10 knots. Rain through the day. Slight chance of thunderstorms in the afternoon. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ144-110400- Two Harbors to Duluth MN- 539 PM CDT Fri Apr 10 2026 .TONIGHT...Northwest wind 5 to 10 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. .SUNDAY...East wind 5 to 10 knots becoming southeast late in the afternoon. Rain through the day. Slight chance of thunderstorms in the afternoon. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ145-110400- Duluth MN to Port Wing WI- 539 PM CDT Fri Apr 10 2026 .TONIGHT...West wind 5 to 10 knots becoming southwest late in the night. Mostly clear. Waves 1 foot or less. .SATURDAY...Southeast wind 5 knots becoming east in the late morning and afternoon. Chance of rain in the afternoon. Waves 1 foot or less. .SATURDAY NIGHT...East wind 10 to 15 knots. Rain and chance of thunderstorms. Waves 1 to 2 feet. .SUNDAY...East wind 5 to 10 knots becoming south late in the afternoon. Rain through the day. Slight chance of thunderstorms in the afternoon. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ146-110400- Port Wing to Sand Island WI- 539 PM CDT Fri Apr 10 2026 .TONIGHT...Southwest wind 5 to 10 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. .SUNDAY...East wind 5 to 10 knots becoming south late in the afternoon. Rain through the day. Slight chance of thunderstorms in the afternoon. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ147-110400- Sand Island to Bayfield WI- 539 PM CDT Fri Apr 10 2026 .TONIGHT...Southwest wind 5 knots. Mostly clear. Waves 1 foot or less. .SATURDAY...South wind 5 knots becoming east in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...Southeast wind 5 to 10 knots. Chance of rain and slight chance of thunderstorms in the evening, then rain and chance of thunderstorms after midnight. Waves 1 foot or less. .SUNDAY...Southeast wind 5 to 10 knots becoming south late in the afternoon. Rain through the day. Slight chance of thunderstorms in the afternoon. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ150-110400- Outer Apostle Islands Beyond 5 NM from Mainland- 539 PM CDT Fri Apr 10 2026 .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. .SUNDAY...Southeast wind 10 to 15 knots becoming south 5 to 10 knots late in the afternoon. Rain through the day. Slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ148-110400- Oak Point to Saxon Harbor WI- 539 PM CDT Fri Apr 10 2026 .TONIGHT...South wind 5 knots becoming southwest after midnight. Mostly clear. Waves 1 foot or less. .SATURDAY...South wind 5 knots becoming east in the afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...Southeast wind 10 to 15 knots. Gusts up to 20 knots after midnight. Rain and chance of thunderstorms. Waves 1 to 2 feet. .SUNDAY...South wind 10 to 15 knots. Gusts up to 20 knots. Rain through the day. Slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH