FZUS53 KDLH 240255 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 955 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. LSZ140-241000- Grand Portage to Grand Marais MN- 955 PM CDT Mon Mar 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM CDT TUESDAY... .REST OF TONIGHT...Southwest wind 15 to 20 knots. Gusts up to 25 knots increasing to 30 knots after midnight, then decreasing to 25 knots toward daybreak. Slight chance of snow late in the evening, then chance of snow after midnight. Slight chance of snow toward daybreak. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .TUESDAY...Northwest wind 5 to 10 knots with gusts to around 20 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. A small craft advisory may be needed. .TUESDAY NIGHT...East wind 10 to 15 knots. Patchy fog after midnight. Slight chance of light freezing rain and snow after midnight. Waves 1 to 3 feet. .WEDNESDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the morning. Areas of fog in the morning. Chance of light freezing rain and snow through the day. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ141-241000- Grand Marais to Taconite Harbor MN- 955 PM CDT Mon Mar 23 2026 .REST OF TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the late evening and early morning. Chance of snow late in the evening, then slight chance of snow after midnight. Waves 1 to 2 feet building to 1 to 3 feet after midnight. .TUESDAY...Northwest wind 5 to 10 knots becoming north late in the morning, then becoming southeast in the afternoon. Mostly sunny. Waves 1 to 3 feet. .TUESDAY NIGHT...East wind 10 to 15 knots. Slight chance of light freezing rain and snow after midnight. Waves 1 to 3 feet. .WEDNESDAY...East wind 10 to 15 knots. Patchy dense fog in the morning. Chance of light freezing rain in the morning. Slight chance of snow through the day. Slight chance of light freezing rain in the afternoon. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ142-241000- Taconite Harbor to Silver Bay Harbor MN- 955 PM CDT Mon Mar 23 2026 .REST OF TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the late evening and early morning. Chance of snow late in the evening, then slight chance of snow after midnight. Waves 1 to 3 feet. .TUESDAY...Northwest wind 5 to 10 knots becoming east in the afternoon. Partly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...Northeast wind 10 to 15 knots. Slight chance of light freezing rain and snow after midnight. Waves 1 to 3 feet. .WEDNESDAY...Northeast wind 5 to 10 knots. Patchy fog in the morning. Slight chance of snow through the day. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ143-241000- Silver Bay Harbor to Two Harbors MN- 955 PM CDT Mon Mar 23 2026 .REST OF TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the late evening and early morning. Chance of snow late in the evening, then slight chance of snow after midnight. Waves 1 to 3 feet. .TUESDAY...Northwest wind 5 knots becoming east in the afternoon. Partly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Slight chance of light freezing rain after midnight. Waves 1 to 3 feet. .WEDNESDAY...Northeast wind 5 to 10 knots. Patchy fog in the morning. Slight chance of snow in the morning. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ144-241000- Two Harbors to Duluth MN- 955 PM CDT Mon Mar 23 2026 .REST OF TONIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots after midnight. Chance of snow late in the evening, then 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 10 to 15 knots. Gusts up to 20 knots early in the evening. Mostly cloudy. Waves 1 to 2 feet. .WEDNESDAY...East wind 5 to 10 knots. Patchy fog in the morning. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ145-241000- Duluth MN to Port Wing WI- 955 PM CDT Mon Mar 23 2026 .REST OF TONIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots in the late evening and early morning. Chance of snow late in the evening, then slight chance of snow after midnight. Waves 1 to 2 feet. .TUESDAY...West wind 5 knots becoming northeast in the late morning and afternoon. Partly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Mostly cloudy. Waves 1 to 2 feet. .WEDNESDAY...Northeast wind 5 to 10 knots. Patchy fog in the morning. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ146-241000- Port Wing to Sand Island WI- 955 PM CDT Mon Mar 23 2026 .REST OF TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots after midnight. Slight chance of snow in the late evening and early morning. 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 to 2 feet. .TUESDAY NIGHT...Northeast wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Mostly cloudy. Waves 1 to 2 feet. .WEDNESDAY...Northeast wind 5 to 10 knots. Patchy fog in the morning. Slight chance of light freezing rain and snow in the morning. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ147-241000- Sand Island to Bayfield WI- 955 PM CDT Mon Mar 23 2026 .REST OF TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots after midnight. Chance of snow late in the evening, then slight chance of snow after midnight. Waves 1 to 2 feet. .TUESDAY...West wind 5 to 10 knots becoming east in the afternoon. Partly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...East wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet. .WEDNESDAY...Northeast wind 5 to 10 knots. Patchy fog in the morning. Slight chance of snow in the morning. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ150-241000- Outer Apostle Islands Beyond 5 NM from Mainland- 955 PM CDT Mon Mar 23 2026 .REST OF TONIGHT...Southwest wind 10 to 15 knots with gusts to around 25 knots becoming southwest 10 to 15 knots with gusts to around 20 knots toward daybreak. Chance of snow late in the evening, then slight chance of snow after midnight. Waves 1 to 3 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 10 to 15 knots. Gusts up to 20 knots until early morning. Slight chance of light freezing rain after midnight. Waves 1 to 3 feet. .WEDNESDAY...Northeast wind 10 to 15 knots. Patchy fog in the morning. Slight chance of snow in the morning. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ148-241000- Oak Point to Saxon Harbor WI- 955 PM CDT Mon Mar 23 2026 .REST OF TONIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots. Chance of rain and snow late in the evening. Slight chance of snow after midnight. Waves 1 to 2 feet. .TUESDAY...West wind 5 to 10 knots becoming north late in the morning, then becoming northeast 10 to 15 knots in the afternoon. Partly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming east 5 to 10 knots early in the morning. Mostly cloudy. Waves 1 to 3 feet. .WEDNESDAY...Southeast wind 5 knots becoming northeast in the late morning and afternoon. Patchy fog in the morning. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH