FZUS53 KDLH 200622 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 122 AM CDT Wed May 20 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. LSZ140-201600- Grand Portage to Grand Marais MN- 122 AM CDT Wed May 20 2026 .TODAY...Northwest wind 5 knots becoming southwest 10 to 15 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...Southwest wind 5 to 10 knots becoming west early in the morning. Mostly clear. Waves 1 to 2 feet. .THURSDAY...Southeast wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...East wind 5 to 10 knots becoming northeast after midnight. Partly cloudy. Waves 1 to 2 feet. $$ LSZ141-201600- Grand Marais to Taconite Harbor MN- 122 AM CDT Wed May 20 2026 .TODAY...Northwest wind 5 knots becoming south late in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...East wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .THURSDAY...Northeast wind 5 knots becoming east in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...Northeast wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ142-201600- Taconite Harbor to Silver Bay Harbor MN- 122 AM CDT Wed May 20 2026 .TODAY...West wind 5 knots becoming south early in the afternoon, then becoming east late in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .THURSDAY...Variable winds 10 knots or less becoming east 5 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...Northeast wind 5 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ143-201600- Silver Bay Harbor to Two Harbors MN- 122 AM CDT Wed May 20 2026 .TODAY...West wind 5 knots becoming southwest late in the morning, then becoming southeast early in the afternoon becoming east late in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 to 10 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...Northeast wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...Northeast wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ144-201600- Two Harbors to Duluth MN- 122 AM CDT Wed May 20 2026 .TODAY...West wind 5 knots becoming east late in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 to 10 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...East wind 5 to 10 knots. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...Northeast wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ145-201600- Duluth MN to Port Wing WI- 122 AM CDT Wed May 20 2026 .TODAY...West wind 5 knots becoming southeast early in the afternoon, then becoming east late in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 to 10 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...Northeast wind 5 to 10 knots. Gusts up to 20 knots late in the afternoon. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...Northeast wind 10 to 15 knots easing to 5 knots after midnight. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. $$ LSZ146-201600- Port Wing to Sand Island WI- 122 AM CDT Wed May 20 2026 .TODAY...West wind 5 knots early in the morning becoming variable 10 knots or less, then becoming east 5 to 10 knots in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...East wind 5 to 10 knots in the evening becoming variable 10 knots or less, then becoming northeast 5 knots early in the morning. Mostly clear. Waves 1 foot or less. .THURSDAY...Variable winds 10 knots or less becoming northeast 5 to 10 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...Northeast wind 5 to 10 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. $$ LSZ147-201600- Sand Island to Bayfield WI- 122 AM CDT Wed May 20 2026 .TODAY...Northwest wind 5 knots becoming east in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...Southeast wind 5 to 10 knots until early morning becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .THURSDAY...Southeast wind 5 knots becoming east in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...East wind 5 to 10 knots until early morning becoming variable 10 knots or less. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. $$ LSZ150-201600- Outer Apostle Islands Beyond 5 NM from Mainland- 122 AM CDT Wed May 20 2026 .TODAY...Northwest wind 5 knots becoming southeast in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...Southeast wind 5 to 10 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...South wind 5 knots becoming east in the afternoon. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...East wind 5 to 10 knots becoming southeast after midnight. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. $$ LSZ121-201600- Chequamegon Bay-Bayfield to Oak Point WI- 122 AM CDT Wed May 20 2026 .TODAY...Northwest wind 5 knots becoming east in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...East wind 5 to 10 knots becoming southeast after midnight, then becoming variable 10 knots or less early in the morning. Mostly clear. Waves 1 foot or less. .THURSDAY...South wind 5 knots becoming east in the afternoon. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...East wind 5 to 10 knots in the evening becoming variable 10 knots or less. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. $$ LSZ148-201600- Oak Point to Saxon Harbor WI- 122 AM CDT Wed May 20 2026 .TODAY...Northwest wind 5 knots becoming east in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...East wind 5 to 10 knots becoming south after midnight. Mostly clear. Waves 1 foot or less. .THURSDAY...South wind 5 knots becoming northeast in the afternoon. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...East wind 5 to 10 knots becoming south after midnight. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH