FZUS53 KDLH 200858 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 357 AM CDT Fri Mar 20 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. LSZ140-201600- Grand Portage to Grand Marais MN- 357 AM CDT Fri Mar 20 2026 .TODAY...Northwest wind 5 to 10 knots becoming west in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...West wind 5 knots becoming northwest late in the evening, then becoming northeast after midnight. Slight chance of snow after midnight. Waves 1 foot or less. .SATURDAY...East wind 10 to 15 knots. Patchy fog in the morning. Snow, rain and light freezing rain likely through the day. Waves 1 foot or less. .SATURDAY NIGHT...Northeast wind 15 to 20 knots. Gusts up to 25 knots increasing to 30 knots early in the morning. Chance of light freezing rain in the evening. Chance of snow through the night. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ141-201600- Grand Marais to Taconite Harbor MN- 357 AM CDT Fri Mar 20 2026 .TODAY...Northwest wind 5 knots becoming west in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...West wind 5 knots becoming northeast after midnight. Mostly cloudy. Waves 1 foot or less. .SATURDAY...East wind 10 to 15 knots. Patchy fog in the morning. Light freezing rain likely in the morning. Rain likely and slight chance of snow through the day. Chance of light freezing rain in the afternoon. Waves 1 to 2 feet. .SATURDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots increasing to 25 knots early in the morning. Chance of rain in the evening. Chance of snow and light freezing rain through the night. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ142-201600- Taconite Harbor to Silver Bay Harbor MN- 357 AM CDT Fri Mar 20 2026 .TODAY...Northwest wind 5 knots becoming southwest in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...Northwest wind 5 knots becoming northeast early in the morning. Mostly cloudy. Waves 1 foot or less. .SATURDAY...Northeast wind 5 to 10 knots. Patchy fog in the morning. Chance of light freezing rain in the morning. Chance of rain through the day. Slight chance of snow in the afternoon. Waves 1 to 2 feet. .SATURDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots after midnight. Chance of rain and snow in the evening, then slight chance of snow and light freezing rain after midnight. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ143-201600- Silver Bay Harbor to Two Harbors MN- 357 AM CDT Fri Mar 20 2026 .TODAY...West wind 5 knots. Mostly sunny. Waves 1 foot or less. .TONIGHT...Northwest wind 5 knots becoming northeast after midnight. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. .SATURDAY...Northeast wind 5 to 10 knots. Chance of light freezing rain in the morning. Chance of rain through the day. Waves 1 to 2 feet. .SATURDAY NIGHT...Northeast wind 15 to 20 knots with gusts to around 25 knots. Slight chance of snow in the evening. Chance of rain through the night. Chance of snow and light freezing rain after midnight. Waves 1 to 2 feet building to 2 to 4 feet after midnight. Note...Wave height forecasts are for ice free areas. $$ LSZ144-201600- Two Harbors to Duluth MN- 357 AM CDT Fri Mar 20 2026 .TODAY...West wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .TONIGHT...Northwest wind 5 knots becoming northeast after midnight. Mostly cloudy. Waves 1 foot or less. .SATURDAY...Northeast wind 5 to 10 knots. Chance of rain. Waves 1 foot or less. .SATURDAY NIGHT...Northeast wind 15 to 20 knots. Gusts up to 25 knots. Chance of rain through the night. Chance of snow after midnight. Waves 1 to 2 feet building to 2 to 4 feet after midnight. Note...Wave height forecasts are for ice free areas. $$ LSZ145-201600- Duluth MN to Port Wing WI- 357 AM CDT Fri Mar 20 2026 .TODAY...West wind 5 to 10 knots. Partly sunny until late afternoon then clearing. Waves 1 foot or less. .TONIGHT...Northwest wind 5 knots becoming east in the late evening and overnight. Mostly cloudy. Waves 1 foot or less. .SATURDAY...Northeast wind 5 to 10 knots. Chance of rain in the morning, then slight chance of rain in the afternoon. Waves 1 foot or less. .SATURDAY NIGHT...Northeast wind 15 to 20 knots. Gusts up to 25 knots. Chance of rain through the night. Chance of snow after midnight. Waves 1 to 3 feet building to 2 to 4 feet after midnight. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ146-201600- Port Wing to Sand Island WI- 357 AM CDT Fri Mar 20 2026 .TODAY...West wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .TONIGHT...West wind 5 knots becoming south late in the evening, then becoming east after midnight. Mostly cloudy. Waves 1 foot or less. .SATURDAY...East wind 5 to 10 knots becoming northeast late in the afternoon. Chance of rain. Waves 1 foot or less. .SATURDAY NIGHT...Northeast wind 15 to 20 knots with gusts to around 25 knots. Slight chance of snow in the evening. Chance of rain through the night. Chance of snow and light freezing rain after midnight. Waves 1 to 3 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. $$ LSZ147-201600- Sand Island to Bayfield WI- 357 AM CDT Fri Mar 20 2026 .TODAY...West wind 5 knots. Mostly sunny. Waves 1 foot or less. .TONIGHT...West wind 5 knots becoming southeast after midnight. Mostly cloudy. Waves 1 foot or less. .SATURDAY...East wind 5 to 10 knots becoming northeast late in the afternoon. Chance of light freezing rain in the morning. Chance of rain through the day. Waves 1 foot or less. .SATURDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 25 knots. Slight chance of snow in the evening. Chance of rain through the night. Chance of light freezing rain and snow after midnight. Waves 1 to 2 feet building to 2 to 4 feet in the late evening and overnight. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ150-201600- Outer Apostle Islands Beyond 5 NM from Mainland- 357 AM CDT Fri Mar 20 2026 .TODAY...Northwest wind 5 to 10 knots becoming west late in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...West wind 5 knots becoming southeast after midnight. Mostly cloudy. Waves 1 foot or less. .SATURDAY...East wind 5 to 10 knots becoming northeast late in the afternoon. Chance of light freezing rain in the morning. Chance of rain through the day. Waves 1 to 2 feet. .SATURDAY NIGHT...Northeast wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots after midnight. Slight chance of snow in the evening. Chance of rain through the night. Chance of snow and light freezing rain after midnight. Waves 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ148-201600- Oak Point to Saxon Harbor WI- 357 AM CDT Fri Mar 20 2026 .TODAY...Northwest wind 5 knots becoming west late in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 knots becoming southeast early in the morning. Mostly cloudy. Waves 1 foot or less. .SATURDAY...East wind 5 to 10 knots becoming northeast late in the afternoon. Chance of rain through the day. Waves 1 to 3 feet. .SATURDAY NIGHT...Northeast wind 15 to 20 knots. Chance of rain through the night. Chance of snow and light freezing rain after midnight. Waves 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH