FZUS53 KDLH 180414 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 1114 PM CDT Fri Apr 17 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. LSZ140-181000- Grand Portage to Grand Marais MN- 1114 PM CDT Fri Apr 17 2026 ...GALE WARNING IN EFFECT UNTIL 3 AM CDT SATURDAY... .REST OF TONIGHT...Northwest wind 15 to 20 knots. Gusts up to 25 knots increasing to 30 knots after midnight, then decreasing to 25 knots toward daybreak. Mostly cloudy. Waves 1 to 3 feet. .SATURDAY...West wind 20 to 25 knots. Gusts up to 25 knots increasing to 30 knots in the late morning and afternoon. Partly sunny. Waves 3 to 5 feet. A small craft advisory may be needed. .SATURDAY NIGHT...Northwest wind 20 to 25 knots. Gusts up to 30 knots decreasing to 25 knots after midnight. Partly cloudy in the evening then becoming mostly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet early in the morning. A small craft advisory may be needed. .SUNDAY...Northwest wind 15 to 20 knots. Gusts up to 25 knots. Mostly sunny. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ141-181000- Grand Marais to Taconite Harbor MN- 1114 PM CDT Fri Apr 17 2026 ...GALE WARNING IN EFFECT UNTIL 3 AM CDT SATURDAY... .REST OF TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots increasing to 30 knots after midnight, then decreasing to 25 knots toward daybreak. Mostly cloudy. Waves 1 to 3 feet. .SATURDAY...West wind 20 to 25 knots. Gusts up to 25 knots increasing to 30 knots in the afternoon. Mostly sunny. Waves 2 to 4 feet. A small craft advisory may be needed. .SATURDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to 30 knots decreasing to 20 knots. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. .SUNDAY...Northwest wind 10 to 15 knots. Gusts up to 20 knots in the morning. Mostly sunny. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ142-181000- Taconite Harbor to Silver Bay Harbor MN- 1114 PM CDT Fri Apr 17 2026 ...GALE WARNING IN EFFECT UNTIL 3 AM CDT SATURDAY... .REST OF TONIGHT...West wind 10 to 15 knots. Gusts up to 20 knots increasing to 25 knots after midnight. Mostly cloudy. Waves 1 to 2 feet. .SATURDAY...West wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 3 feet. .SATURDAY NIGHT...Northwest wind 15 to 20 knots with gusts to around 25 knots easing to 5 to 10 knots with gusts to around 20 knots early in the morning. Partly cloudy. Waves 1 to 2 feet. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ143-181000- Silver Bay Harbor to Two Harbors MN- 1114 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .REST OF TONIGHT...West wind 15 to 20 knots with gusts to around 25 knots. Mostly cloudy. Waves 1 to 2 feet. .SATURDAY...West wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 3 feet. .SATURDAY NIGHT...West wind 15 to 20 knots with gusts to around 25 knots becoming northwest 5 to 10 knots with gusts to around 20 knots after midnight. Partly cloudy. Waves 1 to 3 feet. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ144-181000- Two Harbors to Duluth MN- 1114 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .REST OF TONIGHT...West wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots after midnight. Mostly cloudy. Waves 1 to 3 feet..SATURDAY...West wind 20 to 25 knots. Gusts up to 25 knots increasing to 30 knots in the afternoon. Partly sunny. Waves 2 to 4 feet. .SATURDAY NIGHT...West wind 20 to 25 knots with gusts to around 30 knots becoming northwest 10 to 15 knots with gusts to around 20 knots after midnight. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ145-181000- Duluth MN to Port Wing WI- 1114 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .REST OF TONIGHT...West wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots after midnight. Mostly cloudy. Waves 2 to 4 feet. .SATURDAY...West wind 20 to 25 knots. Gusts up to 30 knots decreasing to 25 knots late in the morning, then increasing to 30 knots in the afternoon. Partly sunny. Waves 3 to 5 feet. .SATURDAY NIGHT...West wind 20 to 25 knots with gusts to around 30 knots becoming northwest 10 to 15 knots with gusts to around 20 knots after midnight. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ146-181000- Port Wing to Sand Island WI- 1114 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .REST OF TONIGHT...West wind 5 to 15 knots with gusts to around 20 knots rising to 15 to 20 knots with gusts to around 25 knots after midnight. Mostly cloudy. Waves 3 to 5 feet. .SATURDAY...West wind 20 to 25 knots. Gusts up to 30 knots. Partly sunny. Waves 4 to 6 feet. Waves occasionally to 7 feet. .SATURDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to 25 knots. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 2 feet. Waves occasionally to 7 feet. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ147-181000- Sand Island to Bayfield WI- 1114 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .REST OF TONIGHT...West wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots toward daybreak. Mostly cloudy. Waves 3 to 5 feet. .SATURDAY...West wind 20 to 25 knots with gusts to around 30 knots. Partly sunny. Waves 4 to 6 feet. Waves occasionally to 7 feet. .SATURDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to 25 knots. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 2 feet. Waves occasionally to 7 feet. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 to 2 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ150-181000- Outer Apostle Islands Beyond 5 NM from Mainland- 1114 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SATURDAY NIGHT... .REST OF TONIGHT...West wind 10 to 15 knots with gusts to around 25 knots rising to 20 to 25 knots with gusts to around 30 knots toward daybreak. Mostly cloudy. Waves 4 to 6 feet. Waves occasionally to 7 feet. .SATURDAY...West wind 20 to 25 knots with gusts to around 30 knots. Partly sunny. Waves 4 to 7 feet. Waves occasionally to 9 feet. .SATURDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots after midnight. Partly cloudy. Waves 4 to 6 feet subsiding to 2 to 4 feet after midnight. Waves occasionally to 8 feet. .SUNDAY...Northwest wind 10 to 15 knots with gusts to around 20 knots becoming west 5 to 10 knots late in the afternoon. Mostly sunny. Waves 1 to 3 feet. Note...Wave height forecasts are for ice free areas. $$ LSZ121-181000- Chequamegon Bay-Bayfield to Oak Point WI- 1114 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAYEVENING... .REST OF TONIGHT...West wind 10 to 15 knots. Gusts up to 20 knots increasing to 25 knots toward daybreak. Chance of sprinkles late in the evening. Waves 1 to 2 feet. .SATURDAY...West wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 2 feet. .SATURDAY NIGHT...Northwest wind 15 to 20 knots with gusts to around 25 knots easing to 5 to 10 knots early in the morning. Partly cloudy. Waves 1 to 2 feet. .SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. Note...Wave height forecasts are for ice free areas. $$ LSZ148-181000- Oak Point to Saxon Harbor WI- 1114 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING... .REST OF TONIGHT...West wind 15 to 20 knots with gusts to around 25 knots. Chance of sprinkles late in the evening. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .SATURDAY...West wind 15 to 20 knots. Gusts up to 30 knots decreasing to 25 knots late in the afternoon. Mostly sunny. Waves 2 to 4 feet. .SATURDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to 25 knots early in the evening. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. .SUNDAY...Northwest wind 10 to 15 knots easing to 5 knots late in the afternoon. Sunny. 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