FZUS53 KDLH 160318 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 1018 PM CDT Fri May 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. LSZ140-161000- Grand Portage to Grand Marais MN- 1018 PM CDT Fri May 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... .REST OF TONIGHT...West wind 10 to 15 knots. Gusts up to 20 knots late in the evening. Mostly clear. Waves 2 to 4 feet subsiding to 1 to 3 feet toward daybreak. .SATURDAY...West wind 10 to 15 knots. Gusts up to 20 knots increasing to 25 knots in the late morning and early afternoon, then decreasing to 20 knots late in the afternoon. Sunny. Waves 1 to 3 feet. .SATURDAY NIGHT...Northwest wind 5 to 10 knots becoming northeast in the late evening and overnight. Mostly clear. Waves 1 to 2 feet. .SUNDAY...Northeast wind up to 30 knots with gales to around 35 knots. Chance of rain showers in the afternoon. Waves 1 to 2 feet building to 5 to 8 feet. Waves occasionally to 10 feet. A gale warning may be needed. $$ LSZ141-161000- Grand Marais to Taconite Harbor MN- 1018 PM CDT Fri May 15 2026 .REST OF TONIGHT...West wind 5 to 10 knots. Mostly clear. Waves 1 to 3 feet. .SATURDAY...West wind 10 to 15 knots. Gusts up to 20 knots increasing to 25 knots in the late morning and early afternoon, then decreasing to 20 knots late in the afternoon. Sunny. Waves 1 to 2 feet. .SATURDAY NIGHT...Northwest wind 5 to 10 knots becoming northeast early in the morning. Mostly clear. Waves 1 foot or less. .SUNDAY...Northeast wind up to 30 knots with gales to around 35 knots. Rain showers likely and slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet building to 6 to 9 feet. Waves occasionally to 12 feet. A gale warning may be needed. $$ LSZ142-161000- Taconite Harbor to Silver Bay Harbor MN- 1018 PM CDT Fri May 15 2026 .REST OF TONIGHT...West wind 5 to 10 knots. Mostly clear. Waves 1 to 2 feet. .SATURDAY...West wind 5 to 10 knots with gusts to around 20 knots. Sunny. Waves 1 foot or less. .SATURDAY NIGHT...Northwest wind 5 to 10 knots becoming northeast with gusts to around 20 knots early in the morning. Mostly clear. Waves 1 foot or less. .SUNDAY...Northeast wind 20 to 25 knots with gales to around 35 knots. Slight chance of rain showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet building to 7 to 10 feet. Waves occasionally to 13 feet. A gale warning may be needed. $$ LSZ143-161000- Silver Bay Harbor to Two Harbors MN- 1018 PM CDT Fri May 15 2026 .REST OF TONIGHT...West wind 5 to 10 knots. Mostly clear. Waves 1 to 2 feet. .SATURDAY...West wind 5 to 10 knots. Gusts up to 20 knots in the late morning and afternoon. Sunny. Waves 1 foot or less. .SATURDAY NIGHT...Northwest wind 5 to 10 knots becoming northeast 10 to 15 knots with gusts to around 20 knots in the late evening and overnight. Mostly clear. Waves 1 to 2 feet. .SUNDAY...Northeast wind up to 30 knots with gales to around 35 knots. Slight chance of rain showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Waves 3 to 5 feet building to 7 to 10 feet. Waves occasionally to 13 feet. A gale warning may be needed. $$ LSZ144-161000- Two Harbors to Duluth MN- 1018 PM CDT Fri May 15 2026 .REST OF TONIGHT...West wind 10 to 15 knots. Clear. Waves 1 to 2 feet. .SATURDAY...West wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Sunny. Waves 1 to 2 feet. .SATURDAY NIGHT...Northwest wind 5 to 10 knots becoming northeast in the late evening and early morning, then rising to 15 to 20 knots with gusts to around 25 knots early in the morning. Mostly clear. Waves 1 to 3 feet. .SUNDAY...Northeast wind up to 30 knots. Gusts up to 30 knots increasing to 35 knots in the late morning and afternoon. Chance of rain showers in the morning, then rain showers and slight chance of thunderstorms in the afternoon. Waves 7 to 10 feet. Waves occasionally to 12 feet. A gale warning may be needed. $$ LSZ145-161000- Duluth MN to Port Wing WI- 1018 PM CDT Fri May 15 2026 .REST OF TONIGHT...Southwest wind 10 to 15 knots. Mostly clear. Waves 1 to 2 feet. .SATURDAY...West wind 10 to 15 knots. Gusts up to 20 knots late in the morning increasing to 25 knots, then decreasing to 20 knots late in the afternoon. Sunny. Waves 1 to 2 feet. .SATURDAY NIGHT...Northwest wind 5 to 10 knots becoming northeast in the late evening and early morning, then rising to 15 to 20 knots with gusts to around 25 knots early in the morning. Mostly clear. Waves 1 foot or less building to 1 to 3 feet early in the morning. .SUNDAY...Northeast wind up to 30 knots. Gusts up to 30 knots increasing to 35 knots in the late morning and afternoon. Chance of rain showers through the day. Slight chance of thunderstorms in the afternoon. Waves 6 to 9 feet. Waves occasionally to 12 feet. A gale warning may be needed. $$ LSZ146-161000- Port Wing to Sand Island WI- 1018 PM CDT Fri May 15 2026 .REST OF TONIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots late in the evening. Mostly clear. Waves 1 to 3 feet subsiding to 1 to 2 feet after midnight. .SATURDAY...West wind 5 to 10 knots. Gusts up to 20 knots in the late morning and early afternoon. Sunny. Waves 1 to 2 feet. .SATURDAY NIGHT...Northwest wind 5 knots becoming northeast 10 to 15 knots with gusts to around 20 knots in the late evening and overnight. Mostly clear. Waves 1 to 2 feet. .SUNDAY...Northeast wind 20 to 25 knots. Gusts up to 30 knots. Slight chance of rain showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Waves 1 to 3 feet building to 6 to 9 feet. Waves occasionally to 11 feet. A small craft advisory may be needed. $$ LSZ147-161000- Sand Island to Bayfield WI- 1018 PM CDT Fri May 15 2026 .REST OF TONIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots late in the evening. Mostly clear. Waves 1 to 3 feet subsiding to 1 to 2 feet after midnight. .SATURDAY...West wind 5 to 10 knots. Gusts up to 20 knots in the late morning and afternoon. Sunny. Waves 1 to 2 feet. .SATURDAY NIGHT...Northwest wind 5 knots becoming northeast with gusts to around 20 knots in the late evening and overnight. Mostly clear. Waves 1 to 2 feet. .SUNDAY...Northeast wind 10 to 15 knots with gusts to around 25 knots rising to 20 to 25 knots with gusts to around 30 knots in the afternoon. Slight chance of rain showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet building to 6 to 9 feet. Waves occasionally to 11 feet. A small craft advisory may be needed. $$ LSZ150-161000- Outer Apostle Islands Beyond 5 NM from Mainland- 1018 PM CDT Fri May 15 2026 .REST OF TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 25 knots. Mostly clear. Waves 1 to 3 feet. .SATURDAY...West wind 10 to 15 knots. Gusts up to 20 knots in the late morning and early afternoon. Sunny. Waves 1 to 2 feet. .SATURDAY NIGHT...Northeast wind 5 to 10 knots rising to 10 to 15 knots with gusts to around 20 knots in the late evening and overnight. Mostly clear. Waves 1 to 2 feet. .SUNDAY...Northeast wind up to 30 knots with gales to around 35 knots. Slight chance of rain showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Waves 1 to 3 feet building to 7 to 10 feet. Waves occasionally to 13 feet. A gale warning may be needed. $$ LSZ121-161000- Chequamegon Bay-Bayfield to Oak Point WI- 1018 PM CDT Fri May 15 2026 .REST OF TONIGHT...Southwest wind 5 to 10 knots. Chance of sprinkles in the late evening and early morning. Waves 1 foot or less. .SATURDAY...West wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Sunny. Waves 1 foot or less. .SATURDAY NIGHT...North wind 5 knots becoming northeast in the late evening and overnight. Mostly clear. Waves 1 foot or less. .SUNDAY...Northeast wind 15 to 20 knots with gusts to around 25 knots. Slight chance of rain showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Waves 1 to 3 feet. $$ LSZ148-161000- Oak Point to Saxon Harbor WI- 1018 PM CDT Fri May 15 2026 .REST OF TONIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots late in the evening. Chance of sprinkles in the late evening and early morning. Waves 1 to 2 feet. .SATURDAY...West wind 10 to 15 knots with gusts to around 20 knots becoming northwest with gusts to around 20 knots late in the afternoon. Sunny. Waves 1 to 2 feet. .SATURDAY NIGHT...Northeast wind 10 to 15 knots easing to 5 to 10 knots in the late evening and overnight. Mostly clear. Waves 1 foot or less. .SUNDAY...Northeast wind 15 to 20 knots. Gusts up to 20 knots late in the morning increasing to 30 knots, then decreasing to 25 knots late in the afternoon. Slight chance of rain showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet building to 4 to 7 feet. Waves occasionally to 9 feet. A small craft advisory may be needed. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH