FZUS53 KDLH 190622 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 122 AM CDT Thu Mar 19 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. LSZ140-191600- Grand Portage to Grand Marais MN- 122 AM CDT Thu Mar 19 2026 .TODAY...North wind 5 to 10 knots becoming southeast in the afternoon. Slight chance of snow late in the afternoon. Waves 1 foot or less. .TONIGHT...Southeast wind 5 to 10 knots becoming west after midnight. Patchy fog in the evening. Chance of snow in the evening. Chance of light freezing rain through the night. Slight chance of very light freezing drizzle after midnight. Waves 1 foot or less. .FRIDAY...Northwest wind 5 knots becoming southwest in the afternoon. Partly sunny. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 to 10 knots becoming northwest after midnight. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ141-191600- Grand Marais to Taconite Harbor MN- 122 AM CDT Thu Mar 19 2026 .TODAY...North wind 5 knots becoming southeast in the afternoon. Slight chance of snow late in the afternoon. Waves 1 foot or less. .TONIGHT...East wind 5 to 10 knots becoming northeast late in the evening, then becoming southwest after midnight. Patchy fog in the evening. Chance of snow, slight chance of rain, light freezing rain and very light freezing drizzle in the evening. Waves 1 foot or less. .FRIDAY...Southwest wind 5 to 10 knots. Partly sunny. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 to 10 knots becoming northwest in the late evening and overnight. Mostly cloudy. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ142-191600- Taconite Harbor to Silver Bay Harbor MN- 122 AM CDT Thu Mar 19 2026 .TODAY...North wind 5 knots becoming east in the afternoon. Slight chance of very light freezing drizzle late in the afternoon. Waves 1 foot or less. .TONIGHT...East wind 5 knots becoming west late in the evening, then becoming southwest after midnight. Patchy fog in the evening. Slight chance of drizzle, very light freezing drizzle and snow in the evening. Waves 1 foot or less. .FRIDAY...Southwest wind 5 to 10 knots. Partly sunny. Waves 1 foot or less. .FRIDAY NIGHT...Southwest wind 5 to 10 knots becoming northwest in the late evening and overnight. Mostly cloudy. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ143-191600- Silver Bay Harbor to Two Harbors MN- 122 AM CDT Thu Mar 19 2026 .TODAY...Northeast wind 5 to 10 knots becoming east in the late morning and afternoon. Slight chance of very light freezing drizzle late in the afternoon. Waves 1 foot or less. .TONIGHT...Northeast wind 5 to 10 knots becoming northwest late in the evening, then becoming southwest after midnight. Patchy fog in the evening. Slight chance of drizzle and very light freezing drizzle in the evening. Waves 1 foot or less. .FRIDAY...Southwest wind 5 to 10 knots. Partly sunny. Waves 1 foot or less. .FRIDAY NIGHT...Southwest wind 5 to 10 knots becoming northwest in the late evening and overnight. Mostly cloudy. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ144-191600- Two Harbors to Duluth MN- 122 AM CDT Thu Mar 19 2026 .TODAY...Northeast wind 5 to 10 knots. Partly sunny. Waves 1 foot or less. .TONIGHT...East wind 5 to 10 knots becoming southwest in the late evening and early morning, then becoming southwest 5 to 10 knots early in the morning. Patchy fog after midnight. Waves 1 foot or less. .FRIDAY...West wind 5 to 10 knots. Partly sunny. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 to 10 knots becoming northwest after midnight. Mostly cloudy. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ145-191600- Duluth MN to Port Wing WI- 122 AM CDT Thu Mar 19 2026 .TODAY...Northeast wind 5 to 10 knots. Partly sunny. Waves 1 foot or less. .TONIGHT...East wind 5 to 10 knots becoming southwest in the late evening and overnight. Patchy fog after midnight. Waves 1 foot or less. .FRIDAY...West wind 5 to 10 knots. Partly sunny. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 to 10 knots. Mostly cloudy. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ146-191600- Port Wing to Sand Island WI- 122 AM CDT Thu Mar 19 2026 .TODAY...East wind 5 to 10 knots. Slight chance of very light freezing drizzle late in the afternoon. Waves 1 foot or less. .TONIGHT...Southeast wind 5 knots becoming southwest 10 to 15 knots in the late evening and overnight. Slight chance of drizzle and very light freezing drizzle in the evening. Patchy fog after midnight. Waves 1 foot or less. .FRIDAY...West wind 5 to 10 knots. Partly sunny. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 to 10 knots. Mostly cloudy. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ147-191600- Sand Island to Bayfield WI- 122 AM CDT Thu Mar 19 2026 .TODAY...Northeast wind 5 to 10 knots becoming east in the late morning and afternoon. Slight chance of drizzle and very light freezing drizzle late in the afternoon. Waves 1 foot or less. .TONIGHT...Southeast wind 5 knots becoming southwest in the late evening and early morning, then becoming west 10 to 15 knots early in the morning. Slight chance of rain, drizzle, very light freezing drizzle and snow in the evening. Patchy fog through the night. Waves 1 foot or less. .FRIDAY...West wind 5 to 10 knots. Partly sunny. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 to 10 knots. Mostly cloudy. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ150-191600- Outer Apostle Islands Beyond 5 NM from Mainland- 122 AM CDT Thu Mar 19 2026 .TODAY...East wind 5 to 10 knots. Slight chance of drizzle and very light freezing drizzle late in the afternoon. Waves 1 foot or less. .TONIGHT...Southeast wind 5 to 10 knots becoming southwest in the late evening and early morning, then becoming west 10 to 15 knots early in the morning. Patchy fog in the evening. Slight chance of rain, drizzle, very light freezing drizzle and snow in the evening. Waves 1 foot or less. .FRIDAY...West wind 5 to 10 knots. Partly sunny. Waves 1 foot or less. .FRIDAY NIGHT...West wind 5 to 10 knots. Mostly cloudy. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ148-191600- Oak Point to Saxon Harbor WI- 122 AM CDT Thu Mar 19 2026 .TODAY...East wind 5 to 10 knots. Slight chance of drizzle and very light freezing drizzle late in the afternoon. Waves 1 foot or less. .TONIGHT...South wind 5 knots becoming southwest with gusts to around 20 knots in the late evening and overnight. Slight chance of drizzle and very light freezing drizzle in the evening. Waves 1 foot or less. .FRIDAY...West wind 5 to 10 knots. Partly sunny. Waves 1 foot or less. .FRIDAY NIGHT...Southwest wind 5 to 10 knots. Mostly cloudy. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH