FZUS53 KDLH 151946 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 246 PM CDT Thu Oct 15 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. LSZ140-160400- Grand Portage to Grand Marais MN- 246 PM CDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY AFTERNOON... .TONIGHT...North wind 10 to 15 knots with gusts to around 20 knots rising to up to 30 knots with gales to around 40 knots after midnight. Rain showers in the evening, then chance of rain showers after midnight. Waves 1 foot or less building to 3 to 5 feet after midnight. Waves occasionally to 7 feet. .FRIDAY...North wind up to 30 knots with gales to around 40 knots easing to 15 to 20 knots with gusts to around 30 knots late in the afternoon. Mostly sunny. Waves 4 to 6 feet subsiding to 2 to 4 feet late in the afternoon. Waves occasionally to 8 feet. .FRIDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 25 knots becoming west 15 to 20 knots with gusts to around 25 knots early in the morning. Partly cloudy. Waves 1 to 2 feet building to 1 to 3 feet early in the morning. .SATURDAY...Southwest wind up to 30 knots. Gusts up to 35 knots increasing to 40 knots in the afternoon. Sunny. Waves 4 to 6 feet building to 7 to 10 feet in the late morning and afternoon. Waves occasionally to 13 feet. A gale warning may be needed. $$ LSZ141-160400- Grand Marais to Taconite Harbor MN- 246 PM CDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY AFTERNOON... .TONIGHT...Northwest wind 5 to 10 knots becoming north 20 to 25 knots with gales to around 35 knots after midnight. Rain showers likely in the evening, then chance of rain showers after midnight. Slight chance of rain showers late in the night. Waves 1 to 2 feet building to 2 to 4 feet late in the night. .FRIDAY...North wind up to 30 knots with gales to around 35 knots becoming northwest 10 to 15 knots with gusts to around 25 knots late in the afternoon. Mostly sunny. Waves 3 to 5 feet subsiding to 1 to 2 feet late in the afternoon. .FRIDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots becoming west 15 to 20 knots with gusts to around 25 knots early in the morning. Partly cloudy. Waves 1 to 2 feet. .SATURDAY...Southwest wind 20 to 25 knots. Gusts up to 30 knots increasing to 35 knots in the late morning and afternoon. Sunny. Waves 2 to 4 feet building to 5 to 8 feet in the late morning and afternoon. Waves occasionally to 11 feet. A gale warning may be needed. $$ LSZ142-160400- Taconite Harbor to Silver Bay Harbor MN- 246 PM CDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY AFTERNOON... .TONIGHT...Northwest wind 5 knots becoming north 10 to 15 knots with gusts to around 25 knots after midnight, then rising to 20 to 25 knots with gales to around 35 knots late in the night. Rain showers likely in the evening, then chance of rain showers after midnight. Waves 1 foot or less building to 2 to 4 feet late in the night. .FRIDAY...North wind 20 to 25 knots with gales to around 40 knots easing to 10 to 15 knots with gusts to around 25 knots late in the afternoon. Mostly sunny. Waves 3 to 5 feet subsiding to 1 to 2 feet late in the afternoon. .FRIDAY NIGHT...Northwest wind 5 to 10 knots with gusts to around 20 knots becoming west 10 to 15 knots with gusts to around 25 knots after midnight. Partly cloudy. Waves 1 to 2 feet. .SATURDAY...Southwest wind 20 to 25 knots. Gusts up to 30 knots increasing to 35 knots in the late morning and afternoon. Sunny. Waves 2 to 4 feet building to 4 to 7 feet in the late morning andafternoon. Waves occasionally to 9 feet. A gale warning may be needed. $$ LSZ143-160400- Silver Bay Harbor to Two Harbors MN- 246 PM CDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY AFTERNOON... .TONIGHT...West wind 5 knots becoming northwest 10 to 15 knots with gusts to around 25 knots after midnight, then becoming north 20 to 25 knots with gales to around 35 knots late in the night. Rain showers early in the evening, then rain showers likely late in the evening. Chance of rain showers after midnight. Waves 1 foot or less building to 2 to 4 feet late in the night. .FRIDAY...North wind 20 to 25 knots with gales to around 40 knots easing to 10 to 15 knots with gusts to around 25 knots late in the afternoon. Partly sunny in the morning then clearing. Waves 3 to 5 feet subsiding to 1 to 2 feet late in the afternoon. .FRIDAY NIGHT...Northwest wind 5 to 10 knots with gusts to around 20 knots becoming southwest 10 to 15 knots with gusts to around 25 knots after midnight. Mostly clear. Waves 1 to 2 feet. .SATURDAY...Southwest wind 20 to 25 knots. Gusts up to 35 knots increasing to 40 knots in the late morning and early afternoon, then decreasing to 35 knots late in the afternoon. Sunny. Waves 4 to 6 feet. Waves occasionally to 8 feet. A gale warning may be needed. $$ LSZ144-160400- Two Harbors to Duluth MN- 246 PM CDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY AFTERNOON... .TONIGHT...West wind 5 to 10 knots becoming northwest 10 to 15 knots with gusts to around 20 knots after midnight, then becoming north 20 to 25 knots with gales to around 35 knots late in the night. Rain showers likely in the evening, then chance of rain showers after midnight. Waves 1 to 2 feet building to 2 to 4 feet late in the night. .FRIDAY...North wind up to 30 knots with gales to around 35 knots easing to 10 to 15 knots with gusts to around 20 knots late in the afternoon. Slight chance of rain showers in the morning. Waves 3 to 5 feet subsiding to 1 to 2 feet late in the afternoon. .FRIDAY NIGHT...Northwest wind 5 to 10 knots with gusts to around 20 knots becoming southwest 10 to 15 knots with gusts to around 25 knots early in the morning. Mostly clear. Waves 1 to 3 feet. .SATURDAY...Southwest wind 20 to 25 knots. Gusts up to 30 knots increasing to 35 knots in the late morning and afternoon. Sunny. Waves 3 to 5 feet. Waves occasionally to 7 feet. A gale warning may be needed. $$ LSZ145-160400- Duluth MN to Port Wing WI- 246 PM CDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY AFTERNOON... .TONIGHT...West wind 5 to 10 knots becoming north 20 to 25 knots with gales to around 35 knots after midnight. Rain showers early in the evening, then rain showers likely in the late evening and early morning. Chance of rain showers late in the night. Waves 1 to 2 feet building to 4 to 6 feet late in the night. Waves occasionally to 7 feet. .FRIDAY...North wind up to 30 knots with gales to around 40 knots easing to 10 to 15 knots with gusts to around 25 knots late in the afternoon. Slight chance of rain showers in the morning. Waves 5 to 8 feet subsiding to 2 to 4 feet late in the afternoon. Waves occasionally to 10 feet. .FRIDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots becoming southwest 15 to 20 knots with gusts to around 25 knots early in the morning. Mostly clear. Waves 1 to 3 feet. .SATURDAY...Southwest wind 20 to 25 knots. Gusts up to 30 knots increasing to 35 knots in the late morning and afternoon. Sunny. Waves 3 to 5 feet. A gale warning may be needed. $$ LSZ146-160400- Port Wing to Sand Island WI- 246 PM CDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY AFTERNOON... .TONIGHT...Northwest wind 5 to 10 knots rising to 10 to 15 knots with gusts to around 25 knots after midnight, then becoming north up to 30 knots with gales to around 40 knots late in the night. Rain showers early in the evening, then rain showers likely in the late evening and early morning. Chance of rain showers late in the night. Waves 1 to 2 feet building to 4 to 6 feet late in the night. Waves occasionally to 8 feet. .FRIDAY...North wind up to 30 knots with gales to around 40 knots easing to 5 to 15 knots with gusts to around 25 knots late in the afternoon. Slight chance of rain showers in the morning. Waves 6 to 9 feet subsiding to 3 to 5 feet late in the afternoon. Waves occasionally to 12 feet. .FRIDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots becoming southwest 15 to 20 knots with gusts to around 30 knots after midnight. Mostly clear. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and early morning, then building to 2 to 4 feet early in the morning. .SATURDAY...Southwest wind 20 to 25 knots. Gusts up to 35 knots increasing to 40 knots in the late morning and early afternoon, then decreasing to 35 knots late in the afternoon. Sunny. Waves 4 to 6 feet. Waves occasionally to 8 feet. A gale warning may be needed. $$ LSZ147-160400- Sand Island to Bayfield WI- 246 PM CDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY AFTERNOON... .TONIGHT...Northwest wind 5 to 10 knots rising to 15 to 20 knots with gusts to around 25 knots after midnight, then becoming north up to 30 knots with gales to around 40 knots late in the night. Rain showers early in the evening, then rain showers likely in the late evening and early morning. Chance of rain showers late in the night. Waves 1 to 2 feet building to 4 to 7 feet late in the night. Waves occasionally to 9 feet. .FRIDAY...North wind up to 30 knots with gales to around 40 knots easing to 15 to 20 knots with gusts to around 25 knots late in the afternoon. Slight chance of rain showers in the morning. Waves 7 to 10 feet subsiding to 4 to 6 feet late in the afternoon. Waves occasionally to 12 feet. .FRIDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots becoming southwest 15 to 20 knots with gusts to around 25 knots early in the morning. Mostly clear. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and early morning, then building to 1 to 3 feet early in the morning. .SATURDAY...Southwest wind 20 to 25 knots with gales to around 35 knots. Sunny. Waves 4 to 6 feet. Waves occasionally to 8 feet. A gale warning may be needed. $$ LSZ150-160400- Outer Apostle Islands Beyond 5 NM from Mainland- 246 PM CDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY AFTERNOON... .TONIGHT...Northwest wind 5 to 10 knots becoming north 15 to 20 knots with gusts to around 25 knots after midnight, then rising to up to 30 knots with gales to around 40 knots late in the night. Rain showers early in the evening, then rain showers likely in the late evening and early morning. Chance of rain showers late in the night. Waves 1 foot or less building to 4 to 7 feet. Waves occasionally to 10 feet. .FRIDAY...North wind up to 30 knots with gales to around 40 knots easing to 15 to 20 knots with gusts to around 30 knots late in the afternoon. Slight chance of rain showers in the morning. Waves 7 to 12 feet subsiding to 5 to 8 feet late in the afternoon. Waves occasionally to 15 feet. .FRIDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 25 knots becoming southwest 15 to 20 knots with gusts to around 30 knots early in the morning. Mostly clear. Waves 3 to 5 feet subsiding to 1 to 2 feet after midnight, then building to 2 to 4 feet early in the morning. Waves occasionally to 7 feet. A small craft advisory may be needed. .SATURDAY...Southwest wind up to 30 knots. Gusts up to 35 knots increasing to 40 knots in the late morning and early afternoon, then decreasing to 35 knots late in the afternoon. Sunny. Waves 5 to 8 feet. Waves occasionally to 10 feet. A gale warning may be needed. $$ LSZ121-160400- Chequamegon Bay-Bayfield to Oak Point WI- 246 PM CDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY AFTERNOON... .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 20 knots becoming north 20 to 25 knots with gales to around 35 knots late in the night. Rain showers until early morning, then rain showers likely late in the night. Waves 1 to 2 feet. .FRIDAY...North wind 20 to 25 knots. Gales up to 40 knots decreasing to 25 knots. Chance of rain showers in the morning. Waves 1 to 3 feet subsiding to 1 to 2 feet late in the afternoon. .FRIDAY NIGHT...North wind 5 to 10 knots with gusts to around 20 knots becoming southwest with gusts to around 20 knots after midnight. Mostly clear. Waves 1 foot or less. .SATURDAY...Southwest wind 15 to 20 knots. Gusts up to 25 knots increasing to 30 knots in the late morning and afternoon. Sunny. Waves 1 to 2 feet. $$ LSZ148-160400- Oak Point to Saxon Harbor WI- 246 PM CDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY AFTERNOON... .TONIGHT...Northwest wind 10 to 15 knots with gusts to around 25 knots becoming north 20 to 25 knots with gales to around 40 knots late in the night. Rain showers until early morning, then rain showers likely late in the night. Waves 1 to 2 feet building to 4 to 6 feet late in the night. Waves occasionally to 8 feet. .FRIDAY...North wind up to 30 knots with gales to around 45 knots easing to 15 to 20 knots with gusts to around 30 knots late in the afternoon. Chance of rain showers in the morning. Waves 8 to 11 feet subsiding to 5 to 8 feet late in the afternoon. Waves occasionally to 14 feet. .FRIDAY NIGHT...Northwest wind 10 to 15 knots with gusts to around 25 knots becoming southwest with gusts to around 20 knots after midnight. Mostly clear. Waves 3 to 5 feet subsiding to 1 to 2 feet after midnight. Waves occasionally to 7 feet. A small craft advisory may be needed. .SATURDAY...Southwest wind 15 to 20 knots. Gusts up to 25 knots increasing to 35 knots. Sunny. Waves 1 to 3 feet. A gale warning may be needed. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH