FZUS53 KDLH 111433 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 933 AM CDT Wed Mar 11 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. LSZ140-112200- Grand Portage to Grand Marais MN- 933 AM CDT Wed Mar 11 2026 .REST OF TODAY...North wind 10 to 15 knots with gusts to around 20 knots. Mostly cloudy late in the morning then becoming mostly sunny. Waves 1 to 3 feet. .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots. Mostly clear. Waves 1 to 2 feet. .THURSDAY...Northwest wind 5 to 10 knots becoming south early in the afternoon, then becoming southeast 10 to 15 knots with gusts to around 20 knots late in the afternoon. Chance of flurries in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...East wind up to 30 knots with gales to around 45 knots. Blowing snow in the evening. Freezing spray through the night. Areas of blowing snow after midnight. Snow likely through the night. Waves 2 to 4 feet building to 7 to 12 feet. Waves occasionally to 16 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ141-112200- Grand Marais to Taconite Harbor MN- 933 AM CDT Wed Mar 11 2026 .REST OF TODAY...Northwest wind 5 to 10 knots. Gusts up to 20 knots late. Mostly cloudy late in the morning then clearing. Waves 1 to 3 feet. .TONIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots in the evening. Mostly clear. Waves 1 to 2 feet. .THURSDAY...Northwest wind 5 knots becoming south early in the afternoon, then becoming southeast 10 to 15 knots with gusts to around 20 knots late in the afternoon. Chance of flurries in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...East wind up to 30 knots with gales to around 45 knots becoming northeast 20 to 25 knots with gales to around 45 knots early in the morning. Blowing snow in the evening. Freezing spray through the night. Areas of blowing snow after midnight. Snow through the night. Waves 2 to 4 feet building to 8 to 11 feet. Waves occasionally to 14 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ142-112200- Taconite Harbor to Silver Bay Harbor MN- 933 AM CDT Wed Mar 11 2026 .REST OF TODAY...North wind 5 to 10 knots. Partly sunny late in the morning then clearing. Waves 1 to 2 feet. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots in the evening. Mostly clear. Waves 1 to 2 feet. .THURSDAY...Northwest wind 5 knots becoming west late in the morning, then becoming southeast 10 to 15 knots with gusts to around 20 knots in the afternoon. Chance of snow in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...East wind 20 to 25 knots with gales to around 40 knots becoming northeast with gales to around 40 knots early in the morning. Blowing snow in the evening. Patchy blowing snow after midnight. Snow through the night. Waves 2 to 4 feet building to 8 to 11 feet. Waves occasionally to 14 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ143-112200- Silver Bay Harbor to Two Harbors MN- 933 AM CDT Wed Mar 11 2026 .REST OF TODAY...North wind 5 to 10 knots. Partly sunny late in the morning then clearing. Waves 1 to 2 feet. .TONIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves 1 to 2 feet. .THURSDAY...North wind 5 knots becoming southwest late in the morning, then becoming east 10 to 15 knots with gusts to around 20 knots in the afternoon. Chance of snow in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...East wind 20 to 25 knots with gales to around 35 knots becoming northeast with gales to around 35 knots early in the morning. Snow. Waves 2 to 4 feet building to 7 to 10 feet. Waves occasionally to 13 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ144-112200- Two Harbors to Duluth MN- 933 AM CDT Wed Mar 11 2026 .REST OF TODAY...North wind 5 to 10 knots. Partly sunny late in the morning then clearing. Waves 1 to 2 feet. .TONIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves 1 to 2 feet. .THURSDAY...North wind 5 knots becoming south late in the morning, then becoming east 15 to 20 knots in the afternoon. Chance of snow in the afternoon. Waves 1 to 3 feet. .THURSDAY NIGHT...East wind 20 to 25 knots with gales to around 35 knots becoming north up to 30 knots with gales to around 35 knots early in the morning. Snow. Waves 4 to 6 feet building to 6 to 9 feet after midnight. Waves occasionally to 12 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ145-112200- Duluth MN to Port Wing WI- 933 AM CDT Wed Mar 11 2026 .REST OF TODAY...Northwest wind 5 to 10 knots. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves 1 to 2 feet. .THURSDAY...Southwest wind 5 knots becoming south late in the morning, then becoming southeast early in the afternoon rising to 15 to 20 knots late in the afternoon. Chance of snow in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...Southeast wind 20 to 25 knots with gusts to around 30 knots becoming north up to 30 knots with gales to around 35 knots early in the morning. Chance of snow in the evening, then snow likely after midnight. Waves 4 to 6 feet building to 7 to 10 feet after midnight. Waves occasionally to 12 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ146-112200- Port Wing to Sand Island WI- 933 AM CDT Wed Mar 11 2026 .REST OF TODAY...North wind 5 to 10 knots becoming northwest late. Chance of flurries in the late morning and early afternoon. Waves 1 to 3 feet. .TONIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves 1 to 2 feet. .THURSDAY...West wind 5 knots becoming southwest late in the morning, then becoming southeast 10 to 15 knots with gusts to around 20 knots in the afternoon. Chance of snow in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...East wind 20 to 25 knots with gales to around 35 knots becoming northeast with gales to around 35 knots early in the morning. Chance of snow in the evening, then snow after midnight. Waves 1 to 3 feet building to 6 to 9 feet. Waves occasionally to 12 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ147-112200- Sand Island to Bayfield WI- 933 AM CDT Wed Mar 11 2026 .REST OF TODAY...Northwest wind 5 to 10 knots. Chance of flurries in the late morning and early afternoon. Waves 1 to 3 feet. .TONIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves 1 to 2 feet. .THURSDAY...Northwest wind 5 knots becoming west late in the morning, then becoming southeast 10 to 15 knots with gusts to around 20 knots in the afternoon. Chance of snow in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...Southeast wind 10 to 15 knots with gusts to around 25 knots becoming east 20 to 25 knots with gales to around 35 knots in the late evening and early morning, then becoming northeast with gales to around 35 knots early in the morning. Snow. Waves 1 to 3 feet building to 6 to 9 feet. Waves occasionally to 11 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ150-112200- Outer Apostle Islands Beyond 5 NM from Mainland- 933 AM CDT Wed Mar 11 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .REST OF TODAY...North wind 10 to 15 knots. Gusts up to 20 knots late in the morning. Chance of snow in the late morning and early afternoon. Waves 2 to 4 feet. .TONIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots in the evening. Mostly clear. Waves 1 to 3 feet. .THURSDAY...Northwest wind 5 to 10 knots becoming west late in the morning, then becoming southeast early in the afternoon becoming east 10 to 15 knots with gusts to around 20 knots late in the afternoon. Slight chance of snow in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...East wind 20 to 25 knots with gales to around 35 knots becoming northeast with gales to around 35 knots early in the morning. Slight chance of snow in the evening, then snow after midnight. Waves 1 to 3 feet building to 8 to 11 feet. Waves occasionally to 14 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ148-112200- Oak Point to Saxon Harbor WI- 933 AM CDT Wed Mar 11 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .REST OF TODAY...North wind 20 to 25 knots becoming northwest 10 to 15 knots in the afternoon. Chance of snow in the late morning and early afternoon. Waves 2 to 4 feet. .TONIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves 1 to 2 feet. .THURSDAY...West wind 5 knots becoming southeast 10 to 15 knots with gusts to around 20 knots in the afternoon. Slight chance of snow in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...Southeast wind 15 to 20 knots with gusts to around 30 knots becoming northeast 20 to 25 knots with gales to around 35 knots early in the morning. Snow and slight chance of rain. Waves 1 to 3 feet building to 5 to 8 feet in the late evening and overnight. Waves occasionally to 10 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH