FZUS53 KDLH 290902 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 402 AM CDT Sun Mar 29 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. LSZ140-291600- Grand Portage to Grand Marais MN- 402 AM CDT Sun Mar 29 2026 .TODAY...Northeast wind 10 to 15 knots. Mostly cloudy. Waves 1 foot or less. .TONIGHT...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 foot or less. .MONDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots late in the afternoon. Slight chance of snow and light freezing rain in the afternoon. Waves 1 foot or less. .MONDAY NIGHT...Northeast wind 15 to 20 knots with gusts to around 25 knots. Slight chance of snow in the evening. Chance of light freezing rain through the night. Chance of snow after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ141-291600- Grand Marais to Taconite Harbor MN- 402 AM CDT Sun Mar 29 2026 .TODAY...Northeast wind 10 to 15 knots. Mostly cloudy. Waves 1 to 2 feet. .TONIGHT...Northeast wind 5 to 10 knots becoming north after midnight. Mostly cloudy. Waves 1 to 2 feet. .MONDAY...Northeast wind 5 to 10 knots becoming east 10 to 15 knots with gusts to around 20 knots in the afternoon. Slight chance of snow and light freezing rain in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet late in the afternoon. A small craft advisory may be needed. .MONDAY NIGHT...Northeast wind 15 to 20 knots with gusts to around 25 knots. Slight chance of rain and snow in the evening. Slight chance of light freezing rain through the night. Chance of snow and rain after midnight. Waves 4 to 6 feet. Waves occasionally to 7 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ142-291600- Taconite Harbor to Silver Bay Harbor MN- 402 AM CDT Sun Mar 29 2026 .TODAY...Northeast wind 5 to 10 knots. Partly sunny. Waves 1 to 3 feet. .TONIGHT...Northeast wind 5 to 10 knots becoming north after midnight. Mostly cloudy. Waves 1 to 2 feet. .MONDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Slight chance of rain and snow in the afternoon. Waves 1 to 2 feet building to 2 to 4 feet in the afternoon. A small craft advisory may be needed. .MONDAY NIGHT...Northeast wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots early in the morning. Slight chance of rain, light freezing rain and snow in the evening, then chance of light freezing rain, snow and 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. $$ LSZ143-291600- Silver Bay Harbor to Two Harbors MN- 402 AM CDT Sun Mar 29 2026 .TODAY...Northeast wind 10 to 15 knots. Partly sunny. Waves 1 to 3 feet. .TONIGHT...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet. .MONDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Slight chance of rain and snow in the afternoon. Waves 1 to 2 feet building to 3 to 5 feet in the afternoon. A small craft advisory may be needed. .MONDAY NIGHT...Northeast wind 20 to 25 knots. Slight chance of light freezing rain in the evening. Slight chance of rain through the night. Chance of snow and light freezing rain after midnight. Waves 4 to 7 feet. Waves occasionally to 9 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ144-291600- Two Harbors to Duluth MN- 402 AM CDT Sun Mar 29 2026 .TODAY...Northeast wind 10 to 15 knots. Partly sunny. Waves 1 to 3 feet. .TONIGHT...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet. .MONDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Slight chance of rain in the afternoon. Waves 1 to 2 feet building to 3 to 5 feet in the afternoon. Waves occasionally to 7 feet. A small craft advisory may be needed. .MONDAY NIGHT...Northeast wind 20 to 25 knots. Gusts up to 25 knots increasing to 30 knots late in the evening, then decreasing to 25 knots after midnight. Slight chance of rain in the evening, then chance of rain and snow after midnight. Waves 4 to 7 feet. Waves occasionally to 9 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ145-291600- Duluth MN to Port Wing WI- 402 AM CDT Sun Mar 29 2026 .TODAY...Northeast wind 10 to 15 knots. Partly sunny. Waves 1 to 3 feet. .TONIGHT...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet. .MONDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Slight chance of rain in the afternoon. Waves 1 to 2 feet building to 3 to 5 feet in the afternoon. Waves occasionally to 7 feet. A small craft advisory may be needed. .MONDAY NIGHT...Northeast wind 15 to 20 knots with gusts to around 25 knots. Slight chance of rain in the evening, then chance of rain, snow and light freezing rain after midnight. Waves 4 to 7 feet. Waves occasionally to 9 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ146-291600- Port Wing to Sand Island WI- 402 AM CDT Sun Mar 29 2026 .TODAY...Northeast wind 10 to 15 knots. Mostly cloudy. Waves 1 to 3 feet. .TONIGHT...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet. .MONDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Slight chance of rain, light freezing rain and snow in the afternoon. Waves 1 to 2 feet building to 3 to 5 feet in the afternoon. A small craft advisory may be needed. .MONDAY NIGHT...Northeast wind 15 to 20 knots with gusts to around 25 knots. Slight chance of rain and light freezing rain in the evening, then chance of rain and snow 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. $$ LSZ147-291600- Sand Island to Bayfield WI- 402 AM CDT Sun Mar 29 2026 .TODAY...Northeast wind 5 to 10 knots. Partly sunny. Waves 1 to 2 feet. .TONIGHT...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet. .MONDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Slight chance of rain and snow in the afternoon. Waves 1 to 2 feet building to 3 to 5 feet in the afternoon. A small craft advisory may be needed. .MONDAY NIGHT...Northeast wind 15 to 20 knots with gusts to around 25 knots. Slight chance of rain and light freezing rain in the evening, then chance of rain and snow after midnight. Waves 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ150-291600- Outer Apostle Islands Beyond 5 NM from Mainland- 402 AM CDT Sun Mar 29 2026 .TODAY...Northeast wind 10 to 15 knots. Mostly cloudy. Waves 1 to 3 feet. .TONIGHT...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 3 feet. .MONDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Slight chance of rain, light freezing rain and snow in the afternoon. Waves 1 to 3 feet building to 3 to 5 feet in the afternoon. Waves occasionally to 7 feet. A small craft advisory may be needed. .MONDAY NIGHT...Northeast wind 15 to 20 knots. Gusts up to 30 knots decreasing to 25 knots after midnight. Slight chance of light freezing rain in the evening. Chance of rain through the night. Chance of snow after midnight. Waves 4 to 7 feet. Waves occasionally to 9 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ148-291600- Oak Point to Saxon Harbor WI- 402 AM CDT Sun Mar 29 2026 .TODAY...Northeast wind 5 to 10 knots. Mostly cloudy until late afternoon then becoming mostly sunny. Waves 1 to 2 feet. .TONIGHT...Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet. .MONDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Slight chance of rain and snow in the afternoon. Waves 1 to 2 feet building to 2 to 4 feet in the afternoon. A small craft advisory may be needed. .MONDAY NIGHT...Northeast wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots in the late evening and overnight. Chance of rain. Waves 3 to 5 feet. Waves occasionally to 7 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH