FZUS53 KDLH 231707 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 1207 PM 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. LSZ140-232200- Grand Portage to Grand Marais MN- 1207 PM CDT Mon Mar 23 2026 .REST OF TODAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots late. Sunny. Waves 1 to 2 feet. .TONIGHT...Southwest wind 15 to 20 knots with gusts to around 30 knots becoming west 10 to 15 knots with gusts to around 25 knots early in the morning. Slight chance of snow. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .TUESDAY...Northwest wind 5 to 10 knots becoming north late in the morning, then becoming east in the afternoon. Mostly sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon. .TUESDAY NIGHT...East wind 5 to 10 knots becoming northeast early in the morning. Slight chance of snow after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ141-232200- Grand Marais to Taconite Harbor MN- 1207 PM CDT Mon Mar 23 2026 .REST OF TODAY...Southwest wind 10 to 15 knots. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots with gusts to around 20 knots rising to 10 to 15 knots with gusts to around 20 knots after midnight. Slight chance of snow. Waves 1 to 3 feet. .TUESDAY...Northwest wind 5 knots becoming north late in the morning, then becoming southeast in the afternoon. Mostly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...East wind 5 to 10 knots. Slight chance of snow after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ142-232200- Taconite Harbor to Silver Bay Harbor MN- 1207 PM CDT Mon Mar 23 2026 .REST OF TODAY...Southwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots with gusts to around 20 knots becoming southwest 5 to 10 knots early in the morning. Slight chance of snow in the evening. 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 knots. Slight chance of snow after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ143-232200- Silver Bay Harbor to Two Harbors MN- 1207 PM CDT Mon Mar 23 2026 .REST OF TODAY...South wind 5 to 10 knots. Sunny. Waves 1 foot or less. .TONIGHT...South wind 5 to 10 knots becoming southwest with gusts to around 20 knots in the late evening and overnight. Slight chance of snow in the evening. Waves 1 to 2 feet. .TUESDAY...Northwest wind 5 knots becoming east in the afternoon. Partly sunny. Waves 1 foot or less. .TUESDAY NIGHT...Northeast wind 5 to 10 knots. Slight chance of rain and snow after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ144-232200- Two Harbors to Duluth MN- 1207 PM CDT Mon Mar 23 2026 .REST OF TODAY...South wind 5 to 10 knots. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 10 to 15 knots becoming southwest 10 to 15 knots with gusts to around 20 knots after midnight. Slight chance of snow in the evening. 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. Mostly cloudy. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ145-232200- Duluth MN to Port Wing WI- 1207 PM CDT Mon Mar 23 2026 .REST OF TODAY...South wind 5 to 10 knots. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 to 10 knots early in the morning. Slight chance of rain and snow in the evening. Waves 1 foot or less. .TUESDAY...West wind 5 knots becoming northeast in the late morning and afternoon. Partly sunny. Waves 1 foot or less. .TUESDAY NIGHT...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ146-232200- Port Wing to Sand Island WI- 1207 PM CDT Mon Mar 23 2026 .REST OF TODAY...Southwest wind 5 knots. Sunny. Waves 1 foot or less. .TONIGHT...South wind 5 to 10 knots becoming southwest 10 to 15 knots with gusts to around 20 knots after midnight. Slight chance of snow. Waves 1 to 2 feet. .TUESDAY...West 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. Mostly cloudy. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ147-232200- Sand Island to Bayfield WI- 1207 PM CDT Mon Mar 23 2026 .REST OF TODAY...Southwest wind 5 knots becoming south late. Sunny. Waves 1 foot or less. .TONIGHT...South wind 5 to 10 knots becoming southwest with gusts to around 20 knots in the late evening and overnight. Slight chance of snow. Waves 1 to 2 feet. .TUESDAY...West wind 5 knots becoming north late in the morning, then becoming east in the afternoon. Partly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...East wind 5 knots. Mostly cloudy. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ150-232200- Outer Apostle Islands Beyond 5 NM from Mainland- 1207 PM CDT Mon Mar 23 2026 .REST OF TODAY...Southwest wind 5 knots becoming south late. Sunny. Waves 1 foot or less. .TONIGHT...South wind 5 to 10 knots becoming southwest 10 to 15 knots with gusts to around 20 knots in the late evening and overnight. Slight chance of snow. Waves 1 to 2 feet building to 1 to 3 feet after midnight. .TUESDAY...West 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. Mostly cloudy. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ148-232200- Oak Point to Saxon Harbor WI- 1207 PM CDT Mon Mar 23 2026 .REST OF TODAY...Southwest wind 5 knots becoming southeast late. Sunny. Waves 1 foot or less. .TONIGHT...South wind 10 to 15 knots with gusts to around 20 knots becoming southwest with gusts to around 20 knots after midnight. Slight chance of snow through the night. Slight chance of rain after midnight. Waves 1 to 2 feet. .TUESDAY...West wind 5 to 10 knots becoming north late in the morning, then becoming northeast in the afternoon. Partly sunny. Waves 1 foot or less. .TUESDAY NIGHT...East wind 5 to 10 knots becoming southeast after midnight. Mostly cloudy. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH