514 FZUS53 KDLH 191727 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 1227 PM 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- 1227 PM CDT Tue May 19 2026 .REST OF TODAY...West wind 5 to 10 knots. Gusts up to 20 knots late. Chance of sprinkles. 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 southwest late in the morning, then rising to 10 to 15 knots with gusts to around 20 knots in the afternoon. Sunny. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Southwest wind 5 to 10 knots. Mostly clear. Waves 1 to 2 feet. $$ LSZ141-192200- Grand Marais to Taconite Harbor MN- 1227 PM CDT Tue May 19 2026 .REST OF TODAY...West wind 10 to 15 knots with gusts to around 20 knots. Chance of sprinkles. Waves 1 to 2 feet. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots becoming southwest in the afternoon. Mostly sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...South wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. $$ LSZ142-192200- Taconite Harbor to Silver Bay Harbor MN- 1227 PM CDT Tue May 19 2026 .REST OF TODAY...West wind 5 to 10 knots with gusts to around 20 knots. Chance of sprinkles through the day. Waves 1 to 3 feet. .TONIGHT...West 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 south late in the afternoon. Mostly sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Southeast wind 5 knots becoming northeast late in the evening, then becoming variable 10 knots or less after midnight. Mostly clear. Waves 1 foot or less. $$ LSZ143-192200- Silver Bay Harbor to Two Harbors MN- 1227 PM CDT Tue May 19 2026 .REST OF TODAY...West wind 5 to 10 knots with gusts to around 20 knots. Chance of sprinkles through the day. Waves 1 to 3 feet. .TONIGHT...West wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...West wind 5 knots becoming south in the late morning and early afternoon, then becoming southeast late in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...East wind 5 knots becoming northeast after midnight, then becoming variable 10 knots or less early in the morning. Mostly clear. Waves 1 foot or less. $$ LSZ144-192200- Two Harbors to Duluth MN- 1227 PM CDT Tue May 19 2026 .REST OF TODAY...West wind 10 to 15 knots with gusts to around 20 knots. Chance of sprinkles through the day. Waves 1 to 3 feet. .TONIGHT...West wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots after midnight. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...West wind 5 knots becoming southwest late in the morning, then becoming southeast in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Northeast wind 5 knots. Mostly clear. Waves 1 foot or less. $$ LSZ145-192200- Duluth MN to Port Wing WI- 1227 PM CDT Tue May 19 2026 .REST OF TODAY...West wind 10 to 15 knots with gusts to around 20 knots. Chance of sprinkles through the day. Waves 1 to 3 feet. .TONIGHT...West wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots after midnight. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...West wind 5 knots becoming east in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...East wind 5 knots. Mostly clear. Waves 1 foot or less. $$ LSZ146-192200- Port Wing to Sand Island WI- 1227 PM CDT Tue May 19 2026 .REST OF TODAY...West wind 10 to 15 knots with gusts to around 20 knots. Chance of sprinkles through the day. Waves 1 to 3 feet. .TONIGHT...West 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 in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. $$ LSZ147-192200- Sand Island to Bayfield WI- 1227 PM CDT Tue May 19 2026 .REST OF TODAY...West wind 10 to 15 knots with gusts to around 20 knots. Chance of sprinkles through the day. Waves 1 to 3 feet. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 to 2 feet. .WEDNESDAY...West wind 5 knots becoming southeast in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Southeast wind 5 knots. Mostly clear. Waves 1 foot or less. $$ LSZ150-192200- Outer Apostle Islands Beyond 5 NM from Mainland- 1227 PM 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 with gusts to around 20 knots. Chance of sprinkles through the day. Waves 2 to 4 feet. .TONIGHT...Northwest wind 10 to 15 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 southeast in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Southeast wind 5 knots. Mostly clear. Waves 1 foot or less. $$ LSZ121-192200- Chequamegon Bay-Bayfield to Oak Point WI- 1227 PM CDT Tue May 19 2026 .REST OF TODAY...West wind 10 to 15 knots with gusts to around 20 knots. Chance of sprinkles through the day. Waves 1 foot or less. .TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles in the evening. Waves 1 foot or less. .WEDNESDAY...Northwest wind 5 knots becoming east in the afternoon. Mostly sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...East wind 5 knots becoming south after midnight. Partly cloudy. Waves 1 foot or less. $$ LSZ148-192200- Oak Point to Saxon Harbor WI- 1227 PM 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 with gusts to around 20 knots. Chance of sprinkles through the day. 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...East 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