FZUS53 KDLH 191415 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 915 AM CDT Tue May 19 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. LSZ140-192200- Grand Portage to Grand Marais MN- 915 AM CDT Tue May 19 2026 .REST OF TODAY...Northwest wind 5 to 10 knots. Gusts up to 20 knots late. Chance of sprinkles through the day. Waves 1 to 3 feet. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots becoming west late in the morning, then becoming southwest 10 to 15 knots with gusts to around 20 knots in the afternoon. Sunny. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots after midnight. Mostly clear. Waves 1 to 2 feet. $$ LSZ141-192200- Grand Marais to Taconite Harbor MN- 915 AM CDT Tue May 19 2026 .REST OF TODAY...West wind 5 to 10 knots. Gusts up to 20 knots late. Chance of sprinkles in the afternoon. Waves 1 to 2 feet. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots becoming south in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...South wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. $$ LSZ142-192200- Taconite Harbor to Silver Bay Harbor MN- 915 AM CDT Tue May 19 2026 .REST OF TODAY...West wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Chance of sprinkles in the afternoon. Waves 1 to 3 feet. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots becoming south in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Northeast wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. $$ LSZ143-192200- Silver Bay Harbor to Two Harbors MN- 915 AM CDT Tue May 19 2026 .REST OF TODAY...West wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Chance of sprinkles in the afternoon. Waves 1 to 3 feet. .TONIGHT...Northwest wind 5 to 10 knots. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots becoming south in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Northeast wind 5 knots until early morning becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. $$ LSZ144-192200- Two Harbors to Duluth MN- 915 AM CDT Tue May 19 2026 .REST OF TODAY...West wind 10 to 15 knots with gusts to around 20 knots. Chance of sprinkles in the afternoon. Waves 1 to 3 feet. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...West wind 5 knots becoming southeast in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Northeast wind 5 knots. Mostly clear. Waves 1 foot or less. $$ LSZ145-192200- Duluth MN to Port Wing WI- 915 AM CDT Tue May 19 2026 .REST OF TODAY...West wind 10 knots rising to 10 to 15 knots in the afternoon. Gusts up to 20 knots. Chance of sprinkles in the afternoon. Waves 1 to 3 feet. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...West wind 5 knots becoming east in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...East wind 5 knots. Mostly clear. Waves 1 foot or less. $$ LSZ146-192200- Port Wing to Sand Island WI- 915 AM CDT Tue May 19 2026 .REST OF TODAY...West wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Chance of sprinkles in the afternoon. Waves 1 to 3 feet. .TONIGHT...Northwest wind 5 to 10 knots. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...West wind 5 knots early in the morning becoming variable 10 knots or less, then becoming southeast 5 knots late in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...East wind 5 knots in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. $$ LSZ147-192200- Sand Island to Bayfield WI- 915 AM CDT Tue May 19 2026 .REST OF TODAY...West wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Chance of sprinkles in the afternoon. Waves 1 to 3 feet. .TONIGHT...Northwest wind 5 to 10 knots. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots early in the morning becoming variable 10 knots or less, then becoming southeast 5 knots in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Southeast wind 5 knots. Mostly clear. Waves 1 foot or less. $$ LSZ150-192200- Outer Apostle Islands Beyond 5 NM from Mainland- 915 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM CDT THIS AFTERNOON... .REST OF TODAY...West wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Chance of sprinkles in the afternoon. Waves 3 to 5 feet. .TONIGHT...Northwest wind 10 to 15 knots easing to 5 to 10 knots in the late evening and overnight. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots becoming west late in the morning, then becoming southeast in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Southeast wind 5 knots. Mostly clear. Waves 1 foot or less. $$ LSZ121-192200- Chequamegon Bay-Bayfield to Oak Point WI- 915 AM CDT Tue May 19 2026 .REST OF TODAY...West wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Chance of sprinkles in the afternoon. Waves 1 foot or less. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 foot or less. .WEDNESDAY...Northwest wind 5 knots becoming east in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...East wind 5 knots becoming south after midnight. Partly cloudy. Waves 1 foot or less. $$ LSZ148-192200- Oak Point to Saxon Harbor WI- 915 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM CDT THIS AFTERNOON... .REST OF TODAY...West wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Chance of sprinkles in the afternoon. Waves 2 to 4 feet. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 3 feet. .WEDNESDAY...Northwest wind 5 knots becoming east in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Southeast wind 5 knots becoming south after midnight. Partly cloudy. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH