FZUS53 KDLH 230622 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 122 AM CDT Mon Mar 23 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. LSZ140-231600- Grand Portage to Grand Marais MN- 122 AM CDT Mon Mar 23 2026 .TODAY...Northwest wind 5 to 10 knots becoming southwest 10 to 15 knots with gusts to around 20 knots in the afternoon. Sunny. Waves 1 to 2 feet. .TONIGHT...Southwest wind 10 to 15 knots with gusts to around 25 knots becoming west with gusts to around 20 knots early in the morning. Slight chance of snow. Waves 1 to 3 feet. .TUESDAY...Northwest wind 5 to 10 knots becoming north late in the morning, then becoming east in the afternoon. Partly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...East wind 5 to 10 knots becoming northeast 10 to 15 knots with gusts to around 20 knots after midnight. Areas of dense fog after midnight. Slight chance of snow and light freezing rain after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ141-231600- Grand Marais to Taconite Harbor MN- 122 AM CDT Mon Mar 23 2026 .TODAY...Northwest wind 5 to 10 knots becoming southwest in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots becoming west 10 to 15 knots with gusts to around 20 knots after midnight. Slight chance of snow. Waves 1 to 2 feet. .TUESDAY...Northwest wind 5 to 10 knots becoming north late in the morning, then becoming southeast in the afternoon. Partly sunny. Waves 1 foot or less. .TUESDAY NIGHT...East wind 5 to 10 knots. Areas of dense fog after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ142-231600- Taconite Harbor to Silver Bay Harbor MN- 122 AM CDT Mon Mar 23 2026 .TODAY...West wind 5 to 10 knots becoming southwest in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots becoming west 5 to 10 knots early in the morning. Slight chance of rain in the evening. Slight chance of snow through the night. Waves 1 foot or less. .TUESDAY...Northwest wind 5 knots becoming east in the afternoon. Partly sunny. Waves 1 foot or less. .TUESDAY NIGHT...Northeast wind 5 to 10 knots. Patchy fog after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ143-231600- Silver Bay Harbor to Two Harbors MN- 122 AM CDT Mon Mar 23 2026 .TODAY...West wind 5 to 10 knots becoming southwest in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots becoming west 10 to 15 knots with gusts to around 20 knots after midnight. Slight chance of snow through the night. Slight chance of rain after midnight. Waves 1 to 2 feet. .TUESDAY...Northwest wind 5 knots becoming east in the afternoon. Partly sunny. Waves 1 foot or less. .TUESDAY NIGHT...Northeast wind 5 to 10 knots. Patchy fog after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ144-231600- Two Harbors to Duluth MN- 122 AM CDT Mon Mar 23 2026 .TODAY...West wind 5 knots becoming south in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots with gusts to around 20 knots rising to 10 to 15 knots with gusts to around 20 knots after midnight. Slight chance of rain through the night. Slight chance of snow after midnight. Waves 1 to 2 feet. .TUESDAY...Northwest wind 5 knots becoming northeast in the late morning and afternoon. Partly sunny. Waves 1 foot or less. .TUESDAY NIGHT...Northeast wind 5 to 10 knots. Patchy fog after midnight. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ145-231600- Duluth MN to Port Wing WI- 122 AM CDT Mon Mar 23 2026 .TODAY...West wind 5 to 10 knots becoming south in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 10 to 15 knots with gusts to around 25 knots becoming west 5 to 10 knots with gusts to around 20 knots early in the morning. Slight chance of rain through the night. Slight chance of snow after midnight. Waves 1 foot or less. .TUESDAY...Northwest wind 5 knots becoming northeast in the late morning and afternoon. Partly sunny. Waves 1 foot or less. .TUESDAY NIGHT...Northeast wind 5 to 10 knots. Patchy fog after midnight. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ146-231600- Port Wing to Sand Island WI- 122 AM CDT Mon Mar 23 2026 .TODAY...West wind 5 to 10 knots becoming south late in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...South wind 10 to 15 knots with gusts to around 25 knots becoming southwest with gusts to around 25 knots after midnight. Slight chance of rain and snow after midnight. Waves 1 to 2 feet. .TUESDAY...West wind 5 to 10 knots becoming northeast in the late morning and early afternoon, then becoming east late in the afternoon. Partly sunny. Waves 1 foot or less. .TUESDAY NIGHT...Northeast wind 5 to 10 knots. Patchy fog after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ147-231600- Sand Island to Bayfield WI- 122 AM CDT Mon Mar 23 2026 .TODAY...Northwest wind 5 to 10 knots becoming south late in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...South wind 10 to 15 knots with gusts to around 25 knots becoming southwest with gusts to around 25 knots after midnight. Slight chance of rain and snow after midnight. Waves 1 to 2 feet. .TUESDAY...West wind 5 to 10 knots becoming east in the afternoon. Partly sunny. Waves 1 foot or less. .TUESDAY NIGHT...Northeast wind 5 to 10 knots. Patchy fog after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ150-231600- Outer Apostle Islands Beyond 5 NM from Mainland- 122 AM CDT Mon Mar 23 2026 .TODAY...Northwest wind 10 to 15 knots with gusts to around 20 knots becoming south 5 to 10 knots late in the afternoon. Sunny. Waves 1 to 2 feet. .TONIGHT...South wind 10 to 15 knots becoming west with gusts to around 25 knots early in the morning. Slight chance of snow after midnight. Waves 1 to 2 feet. .TUESDAY...West wind 5 to 10 knots becoming east 10 to 15 knots in the afternoon. Partly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...East wind 5 to 10 knots. Patchy fog after midnight. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ148-231600- Oak Point to Saxon Harbor WI- 122 AM CDT Mon Mar 23 2026 .TODAY...Northwest wind 5 to 10 knots becoming southeast late in the afternoon. Sunny. Waves 1 to 2 feet. .TONIGHT...South wind 10 to 15 knots with gusts to around 25 knots becoming southwest with gusts to around 30 knots after midnight. Slight chance of rain and snow after midnight. Waves 1 to 2 feet. .TUESDAY...West wind 5 to 10 knots becoming northeast in the afternoon. Partly sunny. Waves 1 foot or less. .TUESDAY NIGHT...East wind 5 to 10 knots. Patchy fog after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH