FZUS53 KDLH 211843 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 142 PM CDT Sat Mar 21 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. LSZ140-212200- Grand Portage to Grand Marais MN- 142 PM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .REST OF TODAY...Northeast wind 10 to 15 knots with gusts to around 25 knots. Slight chance of rain and light freezing rain early in the afternoon. Waves 2 to 4 feet. .TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 30 knots decreasing to 25 knots in the late evening and overnight. Mostly cloudy. Waves 1 to 3 feet. .SUNDAY...Northeast wind 10 to 15 knots with gusts to around 25 knots becoming east 5 to 10 knots late in the afternoon. Mostly sunny. Waves 1 to 3 feet. .SUNDAY NIGHT...Southeast wind 5 to 10 knots becoming west in the late evening and overnight. Mostly cloudy. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ141-212200- Grand Marais to Taconite Harbor MN- 142 PM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .REST OF TODAY...Northeast wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots late. Mostly cloudy. Waves 1 to 3 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots in the late evening and overnight. Slight chance of rain in the evening. Waves 1 to 2 feet. .SUNDAY...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming southeast 5 to 10 knots late in the afternoon. Slight chance of snow in the afternoon. Waves 1 to 2 feet. .SUNDAY NIGHT...Southeast wind 5 to 10 knots becoming west early in the morning. Mostly cloudy. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ142-212200- Taconite Harbor to Silver Bay Harbor MN- 142 PM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .REST OF TODAY...Northeast wind 5 to 10 knots with gusts to around 20 knots. Partly sunny. Waves 1 to 2 feet. .TONIGHT...Northeast wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of rain and snow in the evening. Waves 1 to 2 feet. .SUNDAY...Northeast wind 5 to 10 knots becoming east in the afternoon. Slight chance of snow in the afternoon. Waves 1 to 3 feet. .SUNDAY NIGHT...Southeast wind 5 knots early in the evening becoming variable 10 knots or less, then becoming west 5 knots after midnight. Mostly cloudy. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ143-212200- Silver Bay Harbor to Two Harbors MN- 142 PM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... .REST OF TODAY...Northeast wind 5 to 10 knots. Gusts up to 20 knots increasing to 25 knots late. Partly sunny. Waves 1 to 2 feet. .TONIGHT...Northeast wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of rain and snow in the evening. Slight chance of rain and snow after midnight. Waves 1 to 2 feet. .SUNDAY...Northeast wind 10 to 15 knots becoming east 5 to 10 knots late in the afternoon. Chance of snow. Waves 1 to 3 feet. .SUNDAY NIGHT...East wind 5 knots early in the evening becoming variable 10 knots or less, then becoming west 5 knots early in the morning. Mostly cloudy. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ144-212200- Two Harbors to Duluth MN- 142 PM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... .REST OF TODAY...Northeast wind 5 to 10 knots. Gusts up to 20 knots increasing to 25 knots late. Partly sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 25 knots early in the evening. Chance of rain and snow. Waves 1 to 2 feet. .SUNDAY...Northeast wind 10 to 15 knots. Chance of snow through the day. Waves 1 to 3 feet. .SUNDAY NIGHT...Northeast wind 5 knots becoming west after midnight. Partly cloudy. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ145-212200- Duluth MN to Port Wing WI- 142 PM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... .REST OF TODAY...Northeast wind 5 to 10 knots. Gusts up to 20 knots increasing to 25 knots late. Partly sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots early in the evening then 20 knots early in the morning. Chance of rain and snow in the evening. Slight chance of rain and snow after midnight. Waves 1 to 2 feet building to 1 to 3 feet early in the morning. .SUNDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the morning. Chance of snow. Waves 2 to 4 feet. .SUNDAY NIGHT...East wind 5 knots becoming southwest after midnight. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ146-212200- Port Wing to Sand Island WI- 142 PM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... .REST OF TODAY...Northeast wind 5 to 10 knots with gusts to around 20 knots. Partly sunny. Waves 1 to 2 feet. .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots early in the evening then 20 knots after midnight. Chance of snow and slight chance of rain in the evening. Slight 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. .SUNDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the morning. Mostly cloudy in the morning then becoming mostly sunny. Waves 3 to 5 feet. A small craft advisory may be needed. .SUNDAY NIGHT...East wind 5 knots early in the evening becoming variable 10 knots or less, then becoming south 5 knots after midnight becoming west. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late evening and overnight. Note...Wave height forecasts are for ice free areas. $$ LSZ147-212200- Sand Island to Bayfield WI- 142 PM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .REST OF TODAY...Northeast wind 5 to 10 knots becoming north with gusts to around 20 knots late. Partly sunny. Waves 1 to 2 feet. .TONIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots. Chance of rain and snow in the evening. Slight chance of snow after midnight. Waves 1 to 3 feet building to 3 to 5 feet in the late evening and overnight. .SUNDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the morning. Chance of snow in the morning. Waves 3 to 5 feet. A small craft advisory may be needed. .SUNDAY NIGHT...East wind 5 knots becoming west early in the morning. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ150-212200- Outer Apostle Islands Beyond 5 NM from Mainland- 142 PM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .REST OF TODAY...Northeast wind 5 to 10 knots becoming north 10 to 15 knots with gusts to around 25 knots late. Partly sunny. Waves 1 to 2 feet. .TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 25 knots early in the evening then 25 knots after midnight. Chance of rain, snow and slight chance of light freezing rain in the evening. Waves 4 to 7 feet. Waves occasionally to 9 feet. .SUNDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots easing to 5 to 10 knots late in the afternoon. Freezing spray in the morning. Chance of snow through the day. Waves 4 to 7 feet. Waves occasionally to 10 feet. A small craft advisory may be needed. .SUNDAY NIGHT...East wind 5 to 10 knots becoming southwest after midnight. Partly cloudy in the evening then becoming mostly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ148-212200- Oak Point to Saxon Harbor WI- 142 PM CDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .REST OF TODAY...North wind 5 to 10 knots. Partly sunny. Waves 1 to 3 feet. .TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 25 knots after midnight. Chance of light freezing rain in the evening. Chance of snow and slight chance of rain through the night. Waves 4 to 7 feet. Waves occasionally to 9 feet. .SUNDAY...Northeast wind 15 to 20 knots. Gusts up to 25 knots. Chance of snow. Waves 4 to 7 feet. Waves occasionally to 9 feet. A small craft advisory may be needed. .SUNDAY NIGHT...East wind 5 to 10 knots becoming southwest after midnight. Partly cloudy in the evening then becoming mostly cloudy. Waves 4 to 6 feet subsiding to 1 to 3 feet after midnight. Waves occasionally to 7 feet. A small craft advisory may be needed. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH