FZUS53 KDLH 070636 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 136 AM CDT Tue Apr 7 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. LSZ140-071600- Grand Portage to Grand Marais MN- 136 AM CDT Tue Apr 7 2026 .TODAY...West wind 10 to 15 knots becoming southwest 15 to 20 knots in the afternoon. Sunny. Waves 1 to 3 feet. .TONIGHT...South wind 10 to 15 knots with gusts to around 20 knots rising to 15 to 20 knots with gusts to around 25 knots in the late evening and overnight. Slight chance of snow after midnight. Waves 1 to 3 feet building to 3 to 5 feet after midnight. A small craft advisory may be needed. .WEDNESDAY...Southeast wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots late in the afternoon. Rain likely and slight chance of light freezing rain in the morning. Snow likely through the day. Rain with light freezing rain likely in the afternoon. Waves 3 to 5 feet. Waves occasionally to 7 feet. A small craft advisory may be needed. .WEDNESDAY NIGHT...Southwest wind 15 to 20 knots. Gusts up to 20 knots increasing to 30 knots. Chance of rain through the night. 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. $$ LSZ141-071600- Grand Marais to Taconite Harbor MN- 136 AM CDT Tue Apr 7 2026 .TODAY...West wind 5 knots becoming southwest in the late morning and afternoon. Sunny. Waves 1 to 2 feet. .TONIGHT...Southeast wind 10 to 15 knots with gusts to around 20 knots. Slight chance of snow after midnight. Waves 1 to 3 feet. .WEDNESDAY...Southeast wind 10 to 15 knots. Gusts up to 20 knots until late afternoon. Snow, rain likely and slight chance of light freezing rain in the morning, then rain and slight chance of snow in the afternoon. Waves 2 to 4 feet. A small craft advisory may be needed. .WEDNESDAY NIGHT...Southwest wind 10 to 15 knots. Gusts up to 25 knots. Rain in the evening. Waves 2 to 4 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ142-071600- Taconite Harbor to Silver Bay Harbor MN- 136 AM CDT Tue Apr 7 2026 .TODAY...West wind 5 knots becoming southwest in the late morning and afternoon. Sunny. Waves 1 foot or less. .TONIGHT...Southeast wind 5 to 10 knots becoming south after midnight. Chance of snow after midnight. Waves 1 to 2 feet. .WEDNESDAY...Southeast wind 5 to 10 knots becoming south late in the afternoon. Rain, snow and light freezing rain likely in the morning, then rain and slight chance of snow in the afternoon. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Southwest wind 10 to 15 knots. Gusts up to 25 knots. Rain in the evening. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ143-071600- Silver Bay Harbor to Two Harbors MN- 136 AM CDT Tue Apr 7 2026 .TODAY...West wind 5 knots becoming south late in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...East wind 5 to 10 knots becoming south 10 to 15 knots after midnight. Chance of snow after midnight. Waves 1 to 2 feet. .WEDNESDAY...Southeast wind 5 to 10 knots becoming southwest late in the afternoon. Rain likely, chance of snow and light freezing rain likely in the morning, then rain in the afternoon. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Southwest wind 15 to 20 knots. Gusts up to 25 knots. Rain in the evening. Waves 1 to 3 feet building to 2 to 4 feet after midnight. Note...Wave height forecasts are for ice free areas. $$ LSZ144-071600- Two Harbors to Duluth MN- 136 AM CDT Tue Apr 7 2026 .TODAY...West wind 5 knots becoming southeast late in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...East wind 5 to 10 knots becoming south 10 to 15 knots with gusts to around 20 knots early in the morning. Chance of rain and snow after midnight. Waves 1 to 3 feet. .WEDNESDAY...South wind 10 to 15 knots becoming southwest late in the afternoon. Gusts up to 20 knots. Rain likely in the morning, then rain in the afternoon. Waves 1 to 3 feet. .WEDNESDAY NIGHT...West wind 15 to 20 knots. Gusts up to 25 knots after midnight. Rain in the evening. Waves 1 to 3 feet building to 2 to 4 feet after midnight. Note...Wave height forecasts are for ice free areas. $$ LSZ145-071600- Duluth MN to Port Wing WI- 136 AM CDT Tue Apr 7 2026 .TODAY...Southwest wind 5 knots becoming southeast late in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...East wind 5 to 10 knots becoming south 15 to 20 knots with gusts to around 25 knots in the late evening and overnight. Chance of rain after midnight. Waves 1 to 2 feet. .WEDNESDAY...South wind 15 to 20 knots with gusts to around 25 knots becoming southwest 10 to 15 knots with gusts to around 20 knots late in the afternoon. Chance of rain in the morning, then rain in the afternoon. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Southwest wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots in the late evening and overnight. Rain in the evening. Waves 1 to 2 feet building to 2 to 4 feet in the late evening and overnight. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ146-071600- Port Wing to Sand Island WI- 136 AM CDT Tue Apr 7 2026 .TODAY...Southwest wind 5 knots becoming southeast late in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...East wind 5 knots becoming south with gusts to around 20 knots in the late evening and overnight. Chance of snow after midnight. Waves 1 foot or less. .WEDNESDAY...South wind 5 to 10 knots becoming southwest 10 to 15 knots late in the afternoon. Chance of rain in the morning, then rain in the afternoon. Waves 1 foot or less. .WEDNESDAY NIGHT...Southwest wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots in the late evening and overnight. Rain in the evening. Waves 1 to 2 feet building to 3 to 5 feet in the late evening and overnight. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ147-071600- Sand Island to Bayfield WI- 136 AM CDT Tue Apr 7 2026 .TODAY...Southwest wind 5 knots becoming south late in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...Southeast wind 5 to 10 knots becoming south 10 to 15 knots with gusts to around 20 knots after midnight. Chance of snow after midnight. Waves 1 foot or less. .WEDNESDAY...South wind 10 to 15 knots with gusts to around 20 knots becoming southwest late in the afternoon. Chance of rain in the morning, then rain in the afternoon. Waves 1 foot or less. .WEDNESDAY NIGHT...Southwest wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots after midnight. Rain in the evening. Waves 1 to 2 feet building to 2 to 4 feet after midnight. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ150-071600- Outer Apostle Islands Beyond 5 NM from Mainland- 136 AM CDT Tue Apr 7 2026 .TODAY...West wind 5 to 10 knots becoming southwest in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...Southeast wind 5 to 10 knots becoming south 15 to 20 knots after midnight. Chance of snow after midnight. Waves 1 to 2 feet building to 1 to 3 feet early in the morning. .WEDNESDAY...South wind 15 to 20 knots becoming southwest 10 to 15 knots late in the afternoon. Chance of rain in the morning, then rain in the afternoon. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Southwest wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots after midnight. Rain in the evening. Waves 1 to 3 feet subsiding to 1 to 2 feet late in the evening, then building to 3 to 5 feet after midnight. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ148-071600- Oak Point to Saxon Harbor WI- 136 AM CDT Tue Apr 7 2026 .TODAY...Southwest wind 5 knots becoming southeast late in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...East wind 5 knots becoming south 15 to 20 knots with gusts to around 25 knots in the late evening and overnight. Chance of rain after midnight. Waves 1 to 3 feet. .WEDNESDAY...South wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots late in the afternoon. Chance of rain in the morning, then rain in the afternoon. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Southwest wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots early in the morning. Rain in the evening. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH