FZUS53 KDLH 250821 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 321 AM CDT Wed Mar 25 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. LSZ140-251600- Grand Portage to Grand Marais MN- 321 AM CDT Wed Mar 25 2026 .TODAY...East wind 5 to 10 knots becoming northeast late in the afternoon. Chance of snow and slight chance of light freezing rain in the morning. Chance of rain late in the morning, then slight chance of rain early in the afternoon. Patchy fog late in the morning. Waves 1 to 3 feet. .TONIGHT...Northeast wind 10 to 15 knots becoming north with gusts to around 20 knots early in the morning. Slight chance of light freezing rain in the evening, then chance of light freezing rain and slight chance of snow after midnight. Waves 1 to 2 feet. .THURSDAY...North wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots late in the morning. Slight chance of light freezing rain in the morning. Waves 1 to 2 feet. .THURSDAY NIGHT...North wind 10 to 15 knots. Gusts up to 20 knots in the evening. Partly cloudy. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ141-251600- Grand Marais to Taconite Harbor MN- 321 AM CDT Wed Mar 25 2026 .TODAY...East wind 5 knots. Chance of light freezing rain early in the morning. Chance of snow in the morning. Slight chance of rain late in the morning. Waves 1 to 2 feet. .TONIGHT...Northeast wind 5 knots becoming east after midnight. Chance of rain, light freezing rain and slight chance of snow after midnight. Waves 1 foot or less. .THURSDAY...Northwest wind 5 to 10 knots with gusts to around 20 knots becoming north with gusts to around 20 knots in the late morning and afternoon. Slight chance of light freezing rain and snow in the morning. Waves 1 foot or less. .THURSDAY NIGHT...North wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ142-251600- Taconite Harbor to Silver Bay Harbor MN- 321 AM CDT Wed Mar 25 2026 .TODAY...Northeast wind 5 knots. Chance of light freezing rain early in the morning. Slight chance of snow in the morning. Slight chance of rain late in the morning. Waves 1 to 2 feet. .TONIGHT...Northeast wind 5 knots becoming southeast early in the morning. Chance of rain and light freezing rain after midnight. Waves 1 foot or less. .THURSDAY...West wind 5 to 10 knots becoming north with gusts to around 20 knots in the late morning and afternoon. Slight chance of rain and light freezing rain in the morning. Slight chance of snow through the day. Waves 1 foot or less. .THURSDAY NIGHT...North wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ143-251600- Silver Bay Harbor to Two Harbors MN- 321 AM CDT Wed Mar 25 2026 .TODAY...Northeast wind 5 to 10 knots. Slight chance of rain, light freezing rain and snow early in the morning. Waves 1 to 2 feet. .TONIGHT...Northeast wind 5 to 10 knots. Chance of rain and light freezing rain after midnight. Waves 1 foot or less. .THURSDAY...West wind 5 to 10 knots becoming north in the late morning and afternoon. Slight chance of rain and light freezing rain in the morning. Slight chance of snow through the day. Waves 1 foot or less. .THURSDAY NIGHT...North wind 5 to 10 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ144-251600- Two Harbors to Duluth MN- 321 AM CDT Wed Mar 25 2026 .TODAY...Northeast wind 5 to 10 knots. Mostly cloudy in the morning then becoming mostly sunny. Waves 1 to 2 feet. .TONIGHT...Northeast wind 5 to 10 knots becoming south early in the morning. Chance of rain after midnight. Waves 1 foot or less. .THURSDAY...West wind 5 to 10 knots becoming north 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Chance of rain in the morning. Slight chance of snow through the day. Waves 1 foot or less. .THURSDAY NIGHT...North wind 10 to 15 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ145-251600- Duluth MN to Port Wing WI- 321 AM CDT Wed Mar 25 2026 .TODAY...Northeast wind 5 to 10 knots. Mostly cloudy in the morning then becoming mostly sunny. Waves 1 to 2 feet. .TONIGHT...Northeast wind 5 to 10 knots becoming northwest early in the morning. Chance of rain after midnight. Waves 1 foot or less. .THURSDAY...Northwest wind 10 to 15 knots becoming north with gusts to around 20 knots in the afternoon. Chance of rain in the morning. Waves 1 to 2 feet. .THURSDAY NIGHT...North wind 10 to 15 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ146-251600- Port Wing to Sand Island WI- 321 AM CDT Wed Mar 25 2026 .TODAY...East wind 5 knots becoming north in the afternoon. Mostly cloudy in the morning then becoming mostly sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 to 10 knots becoming southeast early in the morning. Chance of rain and light freezing rain after midnight. Waves 1 foot or less. .THURSDAY...West wind 5 to 10 knots becoming north 10 to 15 knots in the late morning and afternoon. Chance of rain and light freezing rain in the morning. Slight chance of snow through the day. Waves 1 to 2 feet. .THURSDAY NIGHT...North wind 5 to 10 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ147-251600- Sand Island to Bayfield WI- 321 AM CDT Wed Mar 25 2026 .TODAY...Southeast wind 5 knots becoming south late in the morning, then becoming northwest early in the afternoon becoming north late in the afternoon. Slight chance of rain early in the morning. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots becoming east late in the evening, then becoming northeast after midnight becoming northwest early in the morning. Chance of rain and light freezing rain after midnight. Waves 1 foot or less. .THURSDAY...West wind 5 to 10 knots becoming north in the late morning and afternoon. Chance of rain, light freezing rain and slight chance of snow in the morning. Waves 1 to 2 feet. .THURSDAY NIGHT...North wind 5 to 10 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ150-251600- Outer Apostle Islands Beyond 5 NM from Mainland- 321 AM CDT Wed Mar 25 2026 .TODAY...Southeast wind 5 to 10 knots becoming west early in the afternoon, then becoming north late in the afternoon. Slight chance of rain early in the morning. Waves 1 to 2 feet. .TONIGHT...Northeast wind 5 to 10 knots becoming northwest early in the morning. Chance of rain and light freezing rain after midnight. Waves 1 foot or less. .THURSDAY...West wind 5 to 10 knots becoming north 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Slight chance of rain and light freezing rain in the morning. Slight chance of snow through the day. Waves 1 to 3 feet. .THURSDAY NIGHT...North wind 10 to 15 knots easing to 10 knots early in the morning. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ148-251600- Oak Point to Saxon Harbor WI- 321 AM CDT Wed Mar 25 2026 .TODAY...South wind 5 to 10 knots becoming southwest late in the morning, then becoming west early in the afternoon becoming north late in the afternoon. Partly sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots becoming northwest after midnight. Chance of rain after midnight. Waves 1 foot or less. .THURSDAY...West wind 5 to 10 knots becoming north 10 to 15 knots in the late morning and afternoon. Chance of rain and light freezing rain in the morning. Waves 1 to 3 feet. .THURSDAY NIGHT...North wind 10 to 15 knots. Mostly cloudy. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH