FZUS53 KDLH 160343 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 943 PM CST Mon Dec 15 2025 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. LSZ140-161100- Grand Portage to Grand Marais MN- 943 PM CST Mon Dec 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM TO 6 AM CST TUESDAY... ...GALE WARNING IN EFFECT FROM 6 AM CST TUESDAY THROUGH LATE TUESDAY NIGHT... .REST OF TONIGHT...North wind 5 to 10 knots becoming southwest 10 to 15 knots with gusts to around 20 knots after midnight, then rising to 20 to 25 knots with gusts to around 30 knots toward daybreak. Slight chance of light freezing rain and snow toward daybreak. Waves 1 to 2 feet building to 3 to 5 feet toward daybreak. Waves occasionally to 7 feet. .TUESDAY...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. Slight chance of light freezing rain and light sleet in the morning. Waves 8 to 11 feet. Waves occasionally to 15 feet. .TUESDAY NIGHT...West wind up to 30 knots easing to 15 to 20 knots early in the morning. Gales up to 40 knots decreasing to 30 knots early in the morning. Mostly cloudy in the evening then becoming partly cloudy. Waves 7 to 10 feet subsiding to 2 to 4 feet. Waves occasionally to 13 feet. .WEDNESDAY...West wind 10 to 15 knots with gusts to around 20 knots becoming southwest 15 to 20 knots with gusts to around 30 knots in the afternoon. Slight chance of snow in the afternoon. Waves 1 to 2 feet building to 2 to 4 feet in the afternoon. A small craft advisory may be needed. $$ LSZ141-161100- Grand Marais to Taconite Harbor MN- 943 PM CST Mon Dec 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM TO 6 AM CST TUESDAY... ...GALE WARNING IN EFFECT FROM 6 AM CST TUESDAY THROUGH LATE TUESDAY NIGHT... .REST OF TONIGHT...Northwest wind 5 knots becoming southwest 15 to 20 knots with gusts to around 25 knots after midnight. Slight chance of light freezing rain, snow and light sleet toward daybreak. Waves 1 foot or less building to 1 to 3 feet toward daybreak. .TUESDAY...Southwest wind 20 to 25 knots. Gusts up to 30 knots increasing to 35 knots in the late morning and afternoon. Slight chance of light freezing rain and light sleet in the morning. Waves 4 to 6 feet building to 6 to 9 feet in the late morning and afternoon. Waves occasionally to 12 feet. .TUESDAY NIGHT...West wind 20 to 25 knots. Gales up to 40 knots decreasing to 30 knots early in the morning. Mostly cloudy in the evening then becoming partly cloudy. Waves 4 to 7 feet subsiding to 1 to 3 feet. Waves occasionally to 9 feet. .WEDNESDAY...West wind 5 to 10 knots becoming southwest 10 to 15 knots with gusts to around 25 knots in the afternoon. Slight chance of snow in the afternoon. Waves 1 to 2 feet. $$ LSZ142-161100- Taconite Harbor to Silver Bay Harbor MN- 943 PM CST Mon Dec 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CST TUESDAY THROUGH TUESDAY AFTERNOON... ...GALE WARNING IN EFFECT TUESDAY EVENING... .REST OF TONIGHT...West wind 5 knots becoming southwest 15 to 20 knots with gusts to around 25 knots after midnight. Slight chance of light freezing rain, snow and light sleet toward daybreak. Waves 1 to 2 feet. .TUESDAY...Southwest wind 20 to 25 knots with gusts to around 30 knots. Slight chance of light freezing rain and light sleet in the morning. Waves 4 to 6 feet. Waves occasionally to 8 feet. .TUESDAY NIGHT...West wind 20 to 25 knots easing to 10 to 15 knots early in the morning. Gales up to 40 knots decreasing to 25 knots early in the morning. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. .WEDNESDAY...Southwest wind 5 to 10 knots becoming south with gusts to around 25 knots late in the afternoon. Slight chance of snow in the afternoon. Waves 1 to 2 feet. $$ LSZ143-161100- Silver Bay Harbor to Two Harbors MN- 943 PM CST Mon Dec 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CST TUESDAY THROUGH TUESDAY AFTERNOON... ...GALE WARNING IN EFFECT TUESDAY EVENING... .REST OF TONIGHT...Southwest wind 15 to 20 knots with gusts to around 25 knots. Slight chance of light freezing rain and light sleet toward daybreak. Waves 1 foot or less building to 1 to 3 feet toward daybreak. .TUESDAY...Southwest wind 20 to 25 knots with gusts to around 30 knots. Slight chance of light freezing rain and snow in the morning. Waves 4 to 7 feet. Waves occasionally to 9 feet. .TUESDAY NIGHT...West wind 20 to 25 knots with gales to around 40 knots easing to 10 to 15 knots with gusts to around 25 knots early in the morning. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. Waves occasionally to 7 feet. .WEDNESDAY...Southwest wind 5 to 10 knots with gusts to around 20 knots becoming south 10 to 15 knots with gusts to around 30 knots late in the afternoon. Slight chance of snow and rain in the afternoon. Waves 1 to 2 feet building to 1 to 3 feet late in the afternoon. $$ LSZ144-161100- Two Harbors to Duluth MN- 943 PM CST Mon Dec 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CST TUESDAY THROUGH TUESDAY AFTERNOON... ...GALE WARNING IN EFFECT TUESDAY EVENING... .REST OF TONIGHT...Southwest wind 15 to 20 knots with gusts to around 25 knots. Slight chance of light sleet toward daybreak. Waves 1 foot or less building to 1 to 3 feet toward daybreak. .TUESDAY...Southwest wind 20 to 25 knots with gusts to around 30 knots. Slight chance of light freezing rain and snow in the morning. Waves 4 to 6 feet. Waves occasionally to 8 feet. .TUESDAY NIGHT...West wind 20 to 25 knots with gales to around 35 knots easing to 10 to 15 knots with gusts to around 20 knots early in the morning. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 2 feet early in the morning. Waves occasionally to 7 feet. .WEDNESDAY...Southwest wind 10 to 15 knots with gusts to around 20 knots becoming south 15 to 20 knots with gusts to around 30 knots late in the afternoon. Slight chance of rain and snow in the afternoon. Waves 1 to 2 feet building to 2 to 4 feet late in the afternoon. $$ LSZ145-161100- Duluth MN to Port Wing WI- 943 PM CST Mon Dec 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CST TUESDAY THROUGH TUESDAY AFTERNOON... ...GALE WARNING IN EFFECT TUESDAY EVENING... .REST OF TONIGHT...Southwest wind 15 to 20 knots with gusts to around 25 knots. Slight chance of light freezing rain and snow toward daybreak. Waves 1 to 2 feet building to 1 to 3 feet toward daybreak. .TUESDAY...Southwest wind 20 to 25 knots. Gusts up to 30 knots increasing to 35 knots in the afternoon. Slight chance of light freezing rain and snow in the morning. Waves 4 to 6 feet. Waves occasionally to 8 feet. A gale warning may be needed. .TUESDAY NIGHT...West wind up to 30 knots with gales to around 35 knots easing to 15 to 20 knots early in the morning. Mostly cloudy in the evening then becoming partly cloudy. Waves 4 to 7 feet subsiding to 2 to 4 feet early in the morning. Waves occasionally to 9 feet. .WEDNESDAY...Southwest wind 10 to 15 knots with gusts to around 20 knots becoming south 20 to 25 knots with gusts to around 30 knots late in the afternoon. Slight chance of rain and snow in the afternoon. Waves 1 to 2 feet building to 1 to 3 feet late in the afternoon. A small craft advisory may be needed. $$ LSZ146-161100- Port Wing to Sand Island WI- 943 PM CST Mon Dec 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CST TUESDAY THROUGH TUESDAY MORNING... ...GALE WARNING IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING... .REST OF TONIGHT...Southwest wind 15 to 20 knots with gusts to around 25 knots. Slight chance of light freezing rain toward daybreak. Waves 1 to 2 feet building to 1 to 3 feet toward daybreak. .TUESDAY...Southwest wind 20 to 25 knots. Gusts up to 30 knots increasing to 35 knots in the late morning and afternoon. Slight chance of light freezing rain and snow in the morning. Waves 3 to 5 feet building to 5 to 8 feet in the late morning and afternoon. Waves occasionally to 10 feet. .TUESDAY NIGHT...West wind up to 30 knots easing to 15 to 20 knots early in the morning. Gusts up to 35 knots decreasing to 25 knots early in the morning. Mostly cloudy in the evening then becoming partly cloudy. Waves 5 to 8 feet subsiding to 2 to 4 feet early in the morning. Waves occasionally to 10 feet. .WEDNESDAY...Southwest wind 10 to 15 knots with gusts to around 20 knots becoming south with gusts to around 20 knots late in the afternoon. Slight chance of rain and snow in the afternoon. Waves 1 to 2 feet. $$ LSZ147-161100- Sand Island to Bayfield WI- 943 PM CST Mon Dec 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CST TUESDAY THROUGH TUESDAY MORNING... ...GALE WARNING IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING... .REST OF TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots toward daybreak. Slight chance of light freezing rain toward daybreak. Waves 1 to 2 feet. .TUESDAY...Southwest wind 20 to 25 knots. Gusts up to 25 knots increasing to 35 knots in the late morning and afternoon. Slight chance of light freezing rain and snow in the morning. Waves 2 to 4 feet building to 4 to 7 feet in the late morning and afternoon. Waves occasionally to 9 feet. .TUESDAY NIGHT...West wind 20 to 25 knots. Gusts up to 35 knots decreasing to 25 knots. Partly cloudy. Waves 4 to 7 feet subsiding to 2 to 4 feet early in the morning. Waves occasionally to 9 feet. .WEDNESDAY...West wind 10 to 15 knots with gusts to around 20 knots becoming south with gusts to around 25 knots in the afternoon. Slight chance of rain and snow in the afternoon. Waves 1 to 2 feet. $$ LSZ150-161100- Outer Apostle Islands Beyond 5 NM from Mainland- 943 PM CST Mon Dec 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CST TUESDAY THROUGH TUESDAY MORNING... ...GALE WARNING IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING... .REST OF TONIGHT...Southwest wind 15 to 20 knots with gusts to around 25 knots. Slight chance of light freezing rain toward daybreak. Waves 1 to 2 feet building to 1 to 3 feet toward daybreak. .TUESDAY...Southwest wind 20 to 25 knots. Gusts up to 30 knots increasing to 35 knots in the late morning and afternoon. Slight chance of light freezing rain and snow in the morning. Waves 3 to 5 feet building to 5 to 8 feet in the late morning and afternoon. Waves occasionally to 11 feet. .TUESDAY NIGHT...West wind up to 30 knots with gales to around 40 knots easing to 15 to 20 knots with gusts to around 25 knots early in the morning. Partly cloudy. Waves 5 to 8 feet subsiding to 3 to 5 feet early in the morning. Waves occasionally to 11 feet. .WEDNESDAY...West wind 10 to 15 knots with gusts to around 20 knots becoming southwest with gusts to around 20 knots early in the afternoon, then becoming south 15 to 20 knots with gusts to around 25 knots late in the afternoon. Slight chance of snow in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet late in the afternoon. $$ LSZ121-161100- Chequamegon Bay-Bayfield to Oak Point WI- 943 PM CST Mon Dec 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM CST TUESDAY THROUGH LATE TUESDAY NIGHT... .REST OF TONIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots toward daybreak. Mostly cloudy. Waves 1 foot or less. .TUESDAY...Southwest wind 15 to 20 knots with gusts to around 30 knots. Slight chance of snow in the morning. Waves 1 to 2 feet. .TUESDAY NIGHT...West wind 15 to 20 knots. Gusts up to 30 knots decreasing to 20 knots early in the morning. Partly cloudy. Waves 1 to 2 feet. .WEDNESDAY...Southwest wind 5 to 10 knots with gusts to around 20 knots becoming south 10 to 15 knots with gusts to around 25 knots late in the afternoon. Mostly sunny. Waves 1 foot or less. $$ LSZ148-161100- Oak Point to Saxon Harbor WI- 943 PM CST Mon Dec 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM CST TUESDAY THROUGH LATE TUESDAY NIGHT... .REST OF TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 25 knots. Mostly cloudy. Waves 1 to 2 feet. .TUESDAY...Southwest wind 15 to 20 knots with gusts to around 30 knots. Slight chance of light freezing rain and snow in the morning. Waves 2 to 4 feet. .TUESDAY NIGHT...West wind 20 to 25 knots. Gusts up to 30 knots decreasing to 25 knots early in the morning. Mostly cloudy in the evening then becoming partly cloudy. Waves 2 to 4 feet. .WEDNESDAY...Southwest wind 10 to 15 knots with gusts to around 20 knots becoming south 15 to 20 knots with gusts to around 30 knots late in the afternoon. Partly sunny. Waves 1 to 3 feet. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH