FZUS53 KDLH 250623 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 123 AM CDT Sat Apr 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- 123 AM CDT Sat Apr 25 2026 .TODAY...North wind 5 knots becoming southeast late in the morning, then becoming south in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...Southeast wind 5 knots becoming northeast in the late evening and overnight. Slight chance of rain after midnight. Waves 1 foot or less. .SUNDAY...Northeast wind 5 to 10 knots. Slight chance of rain through the day. Waves 1 foot or less. .SUNDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots early in the morning. Mostly cloudy. Waves 1 to 2 feet. $$ LSZ141-251600- Grand Marais to Taconite Harbor MN- 123 AM CDT Sat Apr 25 2026 .TODAY...Northeast wind 5 knots becoming southeast in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...East wind 5 knots becoming northeast after midnight. Slight chance of rain in the evening, then chance of rain after midnight. Waves 1 foot or less. .SUNDAY...East wind 5 to 10 knots. Chance of rain through the day. Waves 1 foot or less. .SUNDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the late evening and overnight. Mostly cloudy. Waves 1 to 2 feet. $$ LSZ142-251600- Taconite Harbor to Silver Bay Harbor MN- 123 AM CDT Sat Apr 25 2026 .TODAY...Northeast wind 5 knots becoming east in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots. Slight chance of rain in the evening, then chance of rain after midnight. Waves 1 foot or less. .SUNDAY...Northeast wind 5 to 10 knots. Chance of rain through the day. Waves 1 foot or less. .SUNDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots early in the morning. Mostly cloudy. Waves 1 to 2 feet. $$ LSZ143-251600- Silver Bay Harbor to Two Harbors MN- 123 AM CDT Sat Apr 25 2026 .TODAY...Northeast wind 5 knots becoming east in the late morning and afternoon. Partly sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots. Slight chance of rain in the evening, then chance of rain after midnight. Waves 1 foot or less. .SUNDAY...Northeast wind 5 to 10 knots. Chance of rain through the day. Waves 1 foot or less. .SUNDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the late evening and overnight. Slight chance of rain after midnight. Waves 1 to 3 feet. $$ LSZ144-251600- Two Harbors to Duluth MN- 123 AM CDT Sat Apr 25 2026 .TODAY...Northeast wind 5 knots becoming east in the late morning and afternoon. Partly sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots. Slight chance of rain in the evening, then chance of rain after midnight. Waves 1 foot or less. .SUNDAY...Northeast wind 5 to 10 knots. Chance of rain through the day. Waves 1 to 2 feet. .SUNDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the late evening and overnight. Slight chance of rain after midnight. Waves 1 to 2 feet building to 1 to 3 feet early in the morning. $$ LSZ145-251600- Duluth MN to Port Wing WI- 123 AM CDT Sat Apr 25 2026 .TODAY...Northeast wind 5 knots. Partly sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots. Slight chance of rain in the evening, then chance of rain after midnight. Waves 1 foot or less. .SUNDAY...Northeast wind 5 to 10 knots. Chance of rain through the day. Waves 1 to 2 feet. .SUNDAY NIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots. Slight chance of rain after midnight. Waves 1 to 2 feet building to 1 to 3 feet early in the morning. $$ LSZ146-251600- Port Wing to Sand Island WI- 123 AM CDT Sat Apr 25 2026 .TODAY...Northeast wind 5 knots. Partly sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots. Chance of rain after midnight. Waves 1 foot or less. .SUNDAY...Northeast wind 5 to 10 knots. Chance of rain through the day. Waves 1 foot or less. .SUNDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots early in the morning. Slight chance of rain after midnight. Waves 1 to 2 feet. $$ LSZ147-251600- Sand Island to Bayfield WI- 123 AM CDT Sat Apr 25 2026 .TODAY...East wind 5 knots early in the morning becoming variable 10 knots or less, then becoming east 5 knots in the afternoon. Partly sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots. Chance of rain after midnight. Waves 1 foot or less. .SUNDAY...Northeast wind 5 to 10 knots. Chance of rain in the morning. Waves 1 foot or less. .SUNDAY NIGHT...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet. $$ LSZ150-251600- Outer Apostle Islands Beyond 5 NM from Mainland- 123 AM CDT Sat Apr 25 2026 .TODAY...East wind 5 knots. Mostly sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots. Slight chance of rain after midnight. Waves 1 foot or less. .SUNDAY...Northeast wind 5 to 10 knots. Slight chance of rain through the day. Waves 1 to 2 feet. .SUNDAY NIGHT...East wind 10 to 15 knots. Mostly cloudy. Waves 1 to 3 feet. $$ LSZ121-251600- Chequamegon Bay-Bayfield to Oak Point WI- 123 AM CDT Sat Apr 25 2026 .TODAY...Variable winds 10 knots or less becoming east 5 knots in the late morning and afternoon. Partly sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots. Slight chance of rain after midnight. Waves 1 foot or less. .SUNDAY...North wind 5 knots becoming northeast in the afternoon. Slight chance of rain through the day. Waves 1 foot or less. .SUNDAY NIGHT...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 foot or less. $$ LSZ148-251600- Oak Point to Saxon Harbor WI- 123 AM CDT Sat Apr 25 2026 .TODAY...Northeast wind 5 knots. Partly sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots becoming north after midnight, then becoming northeast early in the morning. Mostly cloudy. Waves 1 foot or less. .SUNDAY...North wind 5 knots becoming northeast in the late morning and afternoon. Slight chance of rain in the morning. Waves 1 foot or less. .SUNDAY NIGHT...East wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH