FZUS53 KDLH 131718 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 1218 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. LSZ140-132200- Grand Portage to Grand Marais MN- 1218 PM CDT Fri Mar 13 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... .REST OF TODAY...North wind 15 to 20 knots. Gusts up to 30 knots decreasing to 25 knots late. Chance of snow early in the afternoon. Waves 5 to 8 feet subsiding to 4 to 6 feet late. Waves occasionally to 11 feet. .TONIGHT...North wind 10 to 15 knots. Gusts up to 20 knots in the evening. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. A small craft advisory may be needed. .SATURDAY...Northwest wind 5 knots becoming southwest late in the afternoon. Mostly sunny. Waves 1 to 2 feet. .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 20 knots after midnight. Mostly cloudy. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ141-132200- Grand Marais to Taconite Harbor MN- 1218 PM CDT Fri Mar 13 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... .REST OF TODAY...North wind 10 to 15 knots. Gusts up to 30 knots decreasing to 20 knots late. Chance of snow early in the afternoon, then slight chance of snow late. Waves 4 to 7 feet. Waves occasionally to 10 feet. .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 25 knots easing to 5 knots early in the morning. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. A small craft advisory may be needed. .SATURDAY...Northwest wind 5 knots becoming south late in the afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...Southeast wind 5 knots becoming northeast in the late evening and early morning, then rising to 10 to 15 knots with gusts to around 25 knots early in the morning. Mostly cloudy. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ142-132200- Taconite Harbor to Silver Bay Harbor MN- 1218 PM CDT Fri Mar 13 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... .REST OF TODAY...North wind 10 to 15 knots with gusts to around 25 knots. Chance of snow through the day. Waves 5 to 8 feet. Waves occasionally to 10 feet. .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 25 knots easing to 5 knots early in the morning. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. A small craft advisory may be needed. .SATURDAY...Northwest wind 5 knots becoming south in the afternoon. Mostly sunny. Waves 1 to 2 feet. .SATURDAY NIGHT...Southeast wind 5 knots becoming northeast 10 to 15 knots with gusts to around 20 knots in the late evening and overnight. Slight chance of snow through the night. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ143-132200- Silver Bay Harbor to Two Harbors MN- 1218 PM CDT Fri Mar 13 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... .REST OF TODAY...North wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots late. Chance of snow early in the afternoon, then slight chance of snow late. Waves 5 to 8 feet. Waves occasionally to 10 feet. .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots early in the morning. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. A small craft advisory may be needed. .SATURDAY...Northwest wind 5 knots becoming south late in the afternoon. Mostly sunny. Waves 1 to 2 feet. .SATURDAY NIGHT...East wind 5 to 10 knots becoming northeast 15 to 20 knots with gusts to around 25 knots early in the morning. Chance of snow through the night. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ144-132200- Two Harbors to Duluth MN- 1218 PM CDT Fri Mar 13 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... .REST OF TODAY...Northwest wind 15 to 20 knots with gusts to around 25 knots. Chance of snow early in the afternoon, then slight chance of snow late. Waves 4 to 7 feet. Waves occasionally to 9 feet. .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots early in the morning. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. A small craft advisory may be needed. .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 to 2 feet. .SATURDAY NIGHT...Northeast wind 5 to 10 knots rising to 15 to 20 knots with gusts to around 25 knots early in the morning. Chance of snow through the night. Waves 1 foot or less building to 1 to 3 feet early in the morning. Note...Wave height forecasts are for ice free areas. $$ LSZ145-132200- Duluth MN to Port Wing WI- 1218 PM CDT Fri Mar 13 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... .REST OF TODAY...Northwest wind 15 to 20 knots. Gusts up to 25 knots early in the afternoon. Chance of snow early in the afternoon, then slight chance of snow late. Waves 4 to 7 feet subsiding to 3 to 5 feet late. Waves occasionally to 9 feet. .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots becoming west 5 knots early in the morning. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. .SATURDAY...Southwest wind 5 knots becoming northeast late in the afternoon. Partly sunny. Waves 1 foot or less. .SATURDAY NIGHT...East wind 5 to 10 knots with gusts to around 20 knots becoming northeast 15 to 20 knots with gusts to around 25 knots early in the morning. Chance of snow through the night. Waves 1 foot or less building to 1 to 3 feet early in the morning. Note...Wave height forecasts are for ice free areas. $$ LSZ146-132200- Port Wing to Sand Island WI- 1218 PM CDT Fri Mar 13 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... .REST OF TODAY...North wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots late. Chance of snow. Waves 5 to 8 feet subsiding to 4 to 6 feet late. Waves occasionally to 11 feet. .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots early in the morning. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 2 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 5 to 10 knots becoming northeast 15 to 20 knots with gusts to around 25 knots early in the morning. Chance of snow through the night. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ147-132200- Sand Island to Bayfield WI- 1218 PM CDT Fri Mar 13 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... .REST OF TODAY...North wind 15 to 20 knots. Gusts up to 25 knots early in the afternoon. Snow likely early in the afternoon, then chance of snow late. Waves 5 to 8 feet subsiding to 4 to 6 feet late. Waves occasionally to 11 feet. .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 25 knots easing to 5 knots early in the morning. Slight chance of snow in the evening. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. .SATURDAY...Southwest wind 5 knots becoming southeast late in the afternoon. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...East wind 10 to 15 knots. Gusts up to 20 knots early in the morning. Slight chance of snow in the evening, then chance of snow after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ150-132200- Outer Apostle Islands Beyond 5 NM from Mainland- 1218 PM CDT Fri Mar 13 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... .REST OF TODAY...North wind 20 to 25 knots. Gusts up to 30 knots decreasing to 25 knots late. Snow likely early in the afternoon, then chance of snow late. Waves 8 to 11 feet subsiding to 5 to 8 feet late. Waves occasionally to 15 feet. .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 in the evening. Waves 4 to 6 feet subsiding to 1 to 2 feet. Waves occasionally to 8 feet. A small craft advisory may be needed. .SATURDAY...Southwest wind 5 to 10 knots becoming southeast late in the afternoon. Mostly sunny. Waves 1 to 2 feet. .SATURDAY NIGHT...East wind 10 to 15 knots. Gusts up to 25 knots early in the morning. Slight chance of snow in the evening, then chance of snow after midnight. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ148-132200- Oak Point to Saxon Harbor WI- 1218 PM CDT Fri Mar 13 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING... .REST OF TODAY...North wind up to 30 knots with gales to around 35 knots easing to 15 to 20 knots with gusts to around 25 knots late. Snow likely early in the afternoon, then chance of snow late. Waves 7 to 10 feet. Waves occasionally to 13 feet. .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots becoming west 5 knots early in the morning. Chance of snow in the evening. Waves 4 to 6 feet subsiding to 1 to 2 feet. Waves occasionally to 8 feet. .SATURDAY...Southwest wind 5 knots becoming east late in the afternoon. Mostly sunny. Waves 1 to 2 feet. .SATURDAY NIGHT...East wind 10 to 15 knots. Gusts up to 20 knots early in the morning. Chance of snow through the night. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH