FZUS53 KDLH 170400 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 1100 PM CDT Thu Apr 16 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. LSZ140-171000- Grand Portage to Grand Marais MN- 1100 PM CDT Thu Apr 16 2026 .REST OF TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots toward daybreak. Patchy fog after midnight. Slight chance of rain showers toward daybreak. Waves 1 to 3 feet. .FRIDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots early in the morning. Patchy fog in the morning. Rain showers and chance of thunderstorms in the afternoon. Waves 1 to 3 feet. .FRIDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to 25 knots increasing to 30 knots late in the evening, then decreasing to 25 knots after midnight. Patchy fog in the evening. Chance of thunderstorms in the evening. Rain showers likely through the night. Slight chance of light freezing rain after midnight. Waves 1 to 3 feet. .SATURDAY...West wind 20 to 25 knots. Gusts up to 25 knots increasing to 30 knots in the late morning and afternoon. Slight chance of light freezing rain and snow in the morning. Waves 1 to 3 feet building to 2 to 4 feet in the late morning and afternoon. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ141-171000- Grand Marais to Taconite Harbor MN- 1100 PM CDT Thu Apr 16 2026 .REST OF TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 20 knots late in the evening. Slight chance of rain showers toward daybreak. Waves 1 to 3 feet. .FRIDAY...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming north with gusts to around 20 knots late in the afternoon. Patchy fog in the afternoon. Rain showers and chance of thunderstorms in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .FRIDAY NIGHT...Northwest wind 15 to 20 knots with gusts to around 30 knots. Rain showers likely and chance of thunderstorms in the evening. Waves 1 to 3 feet. .SATURDAY...West wind 20 to 25 knots with gusts to around 30 knots. Partly sunny. Waves 1 to 3 feet building to 2 to 4 feet in the late morning and afternoon. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ142-171000- Taconite Harbor to Silver Bay Harbor MN- 1100 PM CDT Thu Apr 16 2026 .REST OF TONIGHT...Northeast wind 10 to 15 knots. Patchy fog toward daybreak. Waves 1 to 3 feet. .FRIDAY...Northeast wind 10 to 15 knots becoming north with gusts to around 20 knots late in the afternoon. Patchy fog in the afternoon. Rain showers and chance of thunderstorms in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .FRIDAY NIGHT...Northwest wind 15 to 20 knots with gusts to around 30 knots. Chance of showers and thunderstorms in the evening. Waves 1 to 2 feet. .SATURDAY...West wind 15 to 20 knots with gusts to around 25 knots. Slight chance of snow. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ143-171000- Silver Bay Harbor to Two Harbors MN- 1100 PM CDT Thu Apr 16 2026 .REST OF TONIGHT...Northeast wind 15 to 20 knots. Mostly cloudy. Waves 1 to 3 feet. .FRIDAY...Northeast wind 10 to 15 knots becoming northwest late in the afternoon. Patchy fog in the afternoon. Rain showers and chance of thunderstorms in the afternoon. Waves 1 to 3 feet. .FRIDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots in the late evening and overnight. Chance of showers and thunderstorms in the evening. Waves 1 to 2 feet. .SATURDAY...West wind 15 to 20 knots with gusts to around 25 knots. Partly sunny. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ144-171000- Two Harbors to Duluth MN- 1100 PM CDT Thu Apr 16 2026 .REST OF TONIGHT...Northeast wind 15 to 20 knots. Mostly cloudy. Waves 2 to 4 feet. .FRIDAY...Northeast wind 10 to 15 knots becoming northwest with gusts to around 25 knots late in the afternoon. Slight chance of rain showers in the morning, then rain showers and chance of thunderstorms in the afternoon. Patchy fog in the afternoon. Waves 1 to 3 feet. .FRIDAY NIGHT...West wind 15 to 20 knots with gusts to around 25 knots. Chance of showers and thunderstorms in the evening. Slight chance of snow showers through the night. Waves 1 to 3 feet. .SATURDAY...West wind 20 to 25 knots. Gusts up to 30 knots late in the morning then 30 knots late in the afternoon. Partly sunny. Waves 2 to 4 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ145-171000- Duluth MN to Port Wing WI- 1100 PM CDT Thu Apr 16 2026 .REST OF TONIGHT...Northeast wind 10 to 15 knots. Mostly cloudy. Waves 2 to 4 feet. .FRIDAY...Northeast wind 10 to 15 knots becoming northwest with gusts to around 25 knots late in the afternoon. Patchy fog in the afternoon. Rain showers and chance of thunderstorms in the afternoon. Waves 1 to 3 feet. .FRIDAY NIGHT...West wind 20 to 25 knots. Chance of rain showers, thunderstorms and slight chance of snow showers in the evening. Waves 2 to 4 feet. A small craft advisory may be needed. .SATURDAY...West wind 20 to 25 knots. Gusts up to 30 knots in the afternoon. Mostly cloudy. Waves 3 to 5 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ146-171000- Port Wing to Sand Island WI- 1100 PM CDT Thu Apr 16 2026 .REST OF TONIGHT...Northeast wind 10 to 15 knots. Partly cloudy late in the evening then becoming mostly cloudy. Waves 1 to 3 feet. .FRIDAY...Northeast wind 5 to 10 knots becoming northwest 10 to 15 knots late in the afternoon. Patchy fog in the afternoon. Rain showers and chance of thunderstorms in the afternoon. Waves 1 to 3 feet. .FRIDAY NIGHT...West wind 20 to 25 knots. Chance of thunderstorms in the evening. Chance of rain showers through the night. Waves 1 to 2 feet building to 2 to 4 feet in the late evening and overnight. A small craft advisory may be needed. .SATURDAY...West wind 20 to 25 knots easing to 15 to 20 knots in the late morning and afternoon. Partly sunny. Waves 3 to 5 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ147-171000- Sand Island to Bayfield WI- 1100 PM CDT Thu Apr 16 2026 .REST OF TONIGHT...Northeast wind 5 to 10 knots. Partly cloudy late in the evening then becoming mostly cloudy. Waves 1 to 3 feet. .FRIDAY...Southeast wind 5 to 10 knots becoming northeast early in the afternoon, then becoming west 10 to 15 knots late in the afternoon. Patchy fog in the afternoon. Rain showers and chance of thunderstorms in the afternoon. Waves 1 to 3 feet. .FRIDAY NIGHT...West wind 20 to 25 knots. Chance of thunderstorms in the evening. Chance of rain showers through the night. Waves 1 to 2 feet building to 2 to 4 feet after midnight. A small craft advisory may be needed. .SATURDAY...West wind 20 to 25 knots. Slight chance of snow. Waves 3 to 5 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ150-171000- Outer Apostle Islands Beyond 5 NM from Mainland- 1100 PM CDT Thu Apr 16 2026 .REST OF TONIGHT...East wind 10 to 15 knots. Partly cloudy late in the evening then becoming mostly cloudy. Waves 1 to 3 feet. .FRIDAY...Southeast wind 10 to 15 knots becoming west with gusts to around 20 knots late in the afternoon. Patchy fog in the afternoon. Rain showers and chance of thunderstorms in the afternoon. Waves 1 to 3 feet. .FRIDAY NIGHT...West wind 20 to 25 knots. Gusts up to 30 knots. Patchy fog in the evening. Chance of showers and thunderstorms in the evening. Waves 1 to 3 feet building to 2 to 4 feet after midnight. A small craft advisory may be needed. .SATURDAY...West wind 20 to 25 knots. Gusts up to 30 knots decreasing to 25 knots in the late morning and afternoon. Slight chance of light freezing rain in the morning. Slight chance of snow through the day. Waves 4 to 6 feet. Waves occasionally to 7 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ121-171000- Chequamegon Bay-Bayfield to Oak Point WI- 1100 PM CDT Thu Apr 16 2026 .REST OF TONIGHT...Northeast wind 5 knots becoming southwest toward daybreak. Partly cloudy. Waves 1 foot or less. .FRIDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the morning. Rain showers and chance of thunderstorms in the afternoon. Waves 1 foot or less. .FRIDAY NIGHT...West wind 10 knots with gusts to around 20 knots rising to 10 to 15 knots with gusts to around 25 knots in the late evening and overnight. Chance of thunderstorms in the evening. Chance of rain showers through the night. Waves 1 to 2 feet. .SATURDAY...West wind 15 to 20 knots easing to 10 to 15 knots in the afternoon. Gusts up to 25 knots. Slight chance of snow. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ148-171000- Oak Point to Saxon Harbor WI- 1100 PM CDT Thu Apr 16 2026 .REST OF TONIGHT...East wind 5 to 10 knots with gusts to around 20 knots becoming southwest 10 to 15 knots with gusts to around 20 knots toward daybreak. Partly cloudy. Waves 1 to 2 feet. .FRIDAY...South wind 10 to 15 knots becoming west 15 to 20 knots late in the afternoon. Rain showers and chance of thunderstorms in the afternoon. Waves 1 to 2 feet. .FRIDAY NIGHT...West wind 15 to 20 knots. Gusts up to 25 knots after midnight. Rain showers likely and chance of thunderstorms in the evening, then chance of rain showers after midnight. Waves 1 to 3 feet. .SATURDAY...West wind 15 to 20 knots with gusts to around 25 knots. Slight chance of snow. Waves 2 to 4 feet. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH