FZUS53 KDLH 132148 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 448 PM CDT Fri Mar 13 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. LSZ140-140400- Grand Portage to Grand Marais MN- 448 PM CDT Fri Mar 13 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH LATE MONDAY NIGHT... .TONIGHT...North wind 10 to 15 knots. Gusts up to 20 knots in the evening. Mostly cloudy early in the evening then becoming partly cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. .SATURDAY...Northwest wind 5 knots becoming southwest late in the afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...South wind 5 to 10 knots becoming east late in the evening, then becoming northeast 10 to 15 knots with gusts to around 25 knots after midnight. Slight chance of snow after midnight. Waves 1 to 3 feet. .SUNDAY...Northeast wind 20 to 25 knots with gales to around 35 knots. Snow likely through the day. Freezing spray in the afternoon. Waves 3 to 5 feet building to 6 to 9 feet in the late morning and afternoon. Waves occasionally to 12 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ141-140400- Grand Marais to Taconite Harbor MN- 448 PM CDT Fri Mar 13 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH LATE MONDAY NIGHT... .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 25 knots easing to 5 knots late in the night. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 2 feet after midnight. .SATURDAY...Northwest wind 5 knots becoming south late in the afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...Southeast wind 5 knots becoming northeast 10 to 15 knots with gusts to around 25 knots in the late evening and overnight. Chance of snow after midnight. Waves 1 to 2 feet building to 2 to 4 feet early in the morning. .SUNDAY...Northeast wind 20 to 25 knots. Gusts up to 35 knots decreasing to 30 knots late in the afternoon. Snow likely. Waves 5 to 8 feet. Waves occasionally to 10 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ142-140400- Taconite Harbor to Silver Bay Harbor MN- 448 PM CDT Fri Mar 13 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH LATE MONDAY NIGHT... .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 25 knots easing to 5 knots late in the night. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. .SATURDAY...Northwest wind 5 knots becoming south in the afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...Southeast wind 5 knots becoming northeast 10 to 15 knots with gusts to around 30 knots in the late evening and overnight. Slight chance of snow in the evening, then chance of snow after midnight. Waves 1 to 2 feet building to 2 to 4 feet early in the morning. A small craft advisory may be needed. .SUNDAY...Northeast wind 20 to 25 knots. Gusts up to 35 knots decreasing to 30 knots late in the afternoon. Chance of snow in the morning, then snow likely in the afternoon. Freezing spray in the afternoon. Waves 7 to 10 feet. Waves occasionally to 13 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ143-140400- Silver Bay Harbor to Two Harbors MN- 448 PM CDT Fri Mar 13 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH LATE MONDAY NIGHT... .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots late in the night. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. .SATURDAY...Northwest wind 5 knots becoming south late in the afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...East wind 15 to 20 knots with gusts to around 30 knots. Chance of snow in the evening, then snow likely after midnight. Waves 1 to 3 feet building to 3 to 5 feet early in the morning. Waves occasionally to 7 feet. A small craft advisory may be needed. .SUNDAY...Northeast wind 20 to 25 knots. Gales up to 40 knots decreasing to 35 knots in the afternoon. Snow likely through the day. Freezing spray in the afternoon. Waves 5 to 8 feet building to 8 to 11 feet in the late morning and afternoon. Waves occasionally to 14 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ144-140400- Two Harbors to Duluth MN- 448 PM CDT Fri Mar 13 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH LATE MONDAY NIGHT... .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots late in the night. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. .SATURDAY...West wind 5 knots becoming southwest in the late morning and early afternoon, then becoming southeast late in the afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...East wind 10 to 15 knots with gusts to around 25 knots becoming northeast 20 to 25 knots with gusts to around 30 knots early in the morning. Chance of snow in the evening, then snow likely after midnight. Waves 1 to 3 feet building to 3 to 5 feet early in the morning. Waves occasionally to 7 feet. A small craft advisory may be needed. .SUNDAY...Northeast wind up to 30 knots. Gales up to 40 knots decreasing to 35 knots in the afternoon. Freezing spray. Snow likely. Waves 6 to 9 feet building to 8 to 11 feet in the late morning and afternoon. Waves occasionally to 14 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ145-140400- Duluth MN to Port Wing WI- 448 PM CDT Fri Mar 13 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH LATE MONDAY NIGHT... .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots becoming west 5 knots late in the night. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. .SATURDAY...Southwest wind 5 knots becoming northeast late in the afternoon. Partly sunny. Waves 1 foot or less. .SATURDAY NIGHT...East wind 10 to 15 knots with gusts to around 25 knots becoming northeast 20 to 25 knots with gusts to around 30 knots early in the morning. Chance of snow in the evening, then snow likely after midnight. Waves 1 to 3 feet building to 4 to 6 feet early in the morning. Waves occasionally to 7 feet. A small craft advisory may be needed. .SUNDAY...Northeast wind up to 30 knots with gales to around 40 knots. Freezing spray. Snow. Waves 6 to 9 feet building to 8 to 13 feet in the late morning and afternoon. Waves occasionally to 17 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ146-140400- Port Wing to Sand Island WI- 448 PM CDT Fri Mar 13 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH LATE MONDAY NIGHT... .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots late in the night. Slight chance of snow early in the evening. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. .SATURDAY...Southwest wind 5 to 10 knots becoming east late in the afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...East wind 15 to 20 knots with gusts to around 30 knots. Chance of snow in the evening, then snow likely after midnight. Waves 1 to 2 feet building to 3 to 5 feet early in the morning. A small craft advisory may be needed. .SUNDAY...Northeast wind up to 30 knots with gales to around 40 knots. Freezing spray. Snow. Waves 6 to 9 feet building to 8 to 13 feet in the late morning and afternoon. Waves occasionally to 17 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ147-140400- Sand Island to Bayfield WI- 448 PM CDT Fri Mar 13 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH LATE MONDAY NIGHT... .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 25 knots easing to 5 knots late in the night. Slight chance of snow early in the evening. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. .SATURDAY...Southwest wind 5 knots becoming southeast late in the afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...East wind 5 to 10 knots with gusts to around 20 knots rising to 15 to 20 knots with gusts to around 30 knots early in the morning. Slight chance of snow in the evening, then snow likely after midnight. Waves 1 to 2 feet building to 2 to 4 feet early in the morning. .SUNDAY...Northeast wind up to 30 knots. Gusts up to 35 knots increasing to 45 knots. Freezing spray. Snow. Waves 4 to 7 feet building to 8 to 13 feet. Waves occasionally to 17 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ150-140400- Outer Apostle Islands Beyond 5 NM from Mainland- 448 PM CDT Fri Mar 13 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH LATE MONDAY NIGHT... .TONIGHT...Northwest wind 15 to 20 knots with gusts to around 25 knots easing to 5 to 10 knots after midnight. Slight chance of snow early in the evening. Waves 4 to 6 feet subsiding to 1 to 3 feet. Waves occasionally to 8 feet. .SATURDAY...Southwest wind 5 to 10 knots becoming southeast late in the afternoon. Mostly sunny. Waves 1 to 2 feet. .SATURDAY NIGHT...East wind 15 to 20 knots with gusts to around 30 knots. Slight chance of snow in the evening, then chance of snow after midnight. Waves 1 to 2 feet building to 3 to 5 feet early in the morning. A small craft advisory may be needed. .SUNDAY...Northeast wind up to 30 knots with gales to around 45 knots rising to gales to 35 knots with gales to around 45 knots late in the afternoon. Freezing spray through the day. Blowing snow in the afternoon. Snow through the day. Waves 5 to 8 feet building to 12 to 17 feet. Waves occasionally to 22 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ LSZ148-140400- Oak Point to Saxon Harbor WI- 448 PM CDT Fri Mar 13 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH LATE MONDAY NIGHT... .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots becoming west 5 knots late in the night. Chance of snow early in the evening. Waves 4 to 6 feet subsiding to 1 to 3 feet. Waves occasionally to 8 feet. .SATURDAY...Southwest wind 5 knots becoming east late in the afternoon. Mostly sunny. Waves 1 to 2 feet. .SATURDAY NIGHT...East wind 5 to 10 knots with gusts to around 20 knots rising to 15 to 20 knots with gusts to around 30 knots early in the morning. Chance of snow in the evening, then snow likely after midnight. Waves 1 to 2 feet building to 2 to 4 feet early in the morning. A small craft advisory may be needed. .SUNDAY...Northeast wind up to 30 knots with gales to around 45 knots rising to gales to 35 knots with gales to around 45 knots late in the afternoon. Freezing spray and blowing snow. Snow. Waves 5 to 8 feet building to 10 to 15 feet. Waves occasionally to 20 feet. A gale warning may be needed. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH