FZUS53 KDLH 130623 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 123 AM CDT Wed May 13 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. LSZ140-131600- Grand Portage to Grand Marais MN- 123 AM CDT Wed May 13 2026 .TODAY...Northwest wind 5 to 10 knots. Mostly cloudy early in the morning then becoming mostly sunny. Waves 1 to 2 feet. .TONIGHT...Northwest wind 5 knots becoming northeast in the late evening and overnight. Mostly clear. Waves 1 foot or less. .THURSDAY...East wind 10 to 15 knots with gusts to around 20 knots. Sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...East wind 10 to 15 knots with gusts to around 20 knots becoming south 15 to 20 knots with gusts to around 25 knots after midnight. Chance of rain showers in the evening, then rain showers after midnight. Waves 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed. $$ LSZ141-131600- Grand Marais to Taconite Harbor MN- 123 AM CDT Wed May 13 2026 .TODAY...Northwest wind 5 knots becoming west late in the afternoon. Mostly cloudy early in the morning then becoming mostly sunny. Waves 1 to 2 feet. .TONIGHT...Northwest wind 5 knots early in the evening becoming variable 10 knots or less, then becoming northeast 5 knots after midnight. Mostly clear. Waves 1 foot or less. .THURSDAY...East wind 10 to 15 knots with gusts to around 20 knots. Sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...East wind 10 to 15 knots with gusts to around 20 knots becoming southeast 5 to 10 knots after midnight. Rain showers likely in the evening, then chance of rain showers after midnight. Waves 1 to 3 feet building to 2 to 4 feet in the late evening and overnight. $$ LSZ142-131600- Taconite Harbor to Silver Bay Harbor MN- 123 AM CDT Wed May 13 2026 .TODAY...Northwest wind 5 knots becoming west late in the afternoon. Partly sunny in the morning then clearing. Waves 1 to 2 feet. .TONIGHT...Variable winds 10 knots or less becoming northeast 5 knots early in the morning. Mostly clear. Waves 1 foot or less. .THURSDAY...East wind 5 to 10 knots. Slight chance of rain showers in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...Northeast wind 5 to 10 knots becoming southeast after midnight. Rain showers likely in the evening, then chance of rain showers after midnight. Waves 1 to 3 feet. $$ LSZ143-131600- Silver Bay Harbor to Two Harbors MN- 123 AM CDT Wed May 13 2026 .TODAY...Northwest wind 5 knots becoming south late in the afternoon. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...East wind 5 knots early in the evening becoming variable 10 knots or less, then becoming northeast 5 knots after midnight. Mostly clear. Waves 1 foot or less. .THURSDAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Slight chance of rain showers in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming south 5 to 10 knots after midnight. Rain showers likely in the evening, then chance of rain showers after midnight. Waves 1 to 3 feet. $$ LSZ144-131600- Two Harbors to Duluth MN- 123 AM CDT Wed May 13 2026 .TODAY...Northwest wind 5 to 10 knots becoming east late in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots. Clear. Waves 1 foot or less. .THURSDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Slight chance of rain showers in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...Northeast wind 10 to 15 knots becoming south after midnight. Gusts up to 20 knots. Rain showers likely in the evening, then chance of rain showers after midnight. Waves 1 to 2 feet building to 2 to 4 feet after midnight. A small craft advisory may be needed. $$ LSZ145-131600- Duluth MN to Port Wing WI- 123 AM CDT Wed May 13 2026 .TODAY...Northwest wind 5 to 10 knots becoming northeast late in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots. Clear. Waves 1 foot or less. .THURSDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Slight chance of rain showers in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...East wind 10 to 15 knots with gusts to around 20 knots becoming south 15 to 20 knots with gusts to around 25 knots after midnight. Rain showers likely in the evening, then chance of rain showers after midnight. Waves 1 to 2 feet building to 2 to 4 feet after midnight. $$ LSZ146-131600- Port Wing to Sand Island WI- 123 AM CDT Wed May 13 2026 .TODAY...West wind 5 to 10 knots becoming east late in the afternoon. Mostly cloudy early in the morning then clearing. Waves 1 foot or less. .TONIGHT...East wind 5 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...East wind 10 to 15 knots with gusts to around 20 knots. Slight chance of rain showers in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...East wind 5 to 10 knots becoming south 10 to 15 knots with gusts to around 20 knots early in the morning. Rain showers likely in the evening, then chance of rain showers after midnight. Waves 1 to 3 feet. $$ LSZ147-131600- Sand Island to Bayfield WI- 123 AM CDT Wed May 13 2026 .TODAY...Northwest wind 5 to 10 knots becoming south late in the afternoon. Mostly cloudy early in the morning then clearing. Waves 1 foot or less. .TONIGHT...Southeast wind 5 knots in the evening becoming variable 10 knots or less, then becoming southeast 5 knots early in the morning. Mostly clear. Waves 1 foot or less. .THURSDAY...East wind 5 to 10 knots. Slight chance of rain showers in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...Southeast wind 5 to 10 knots with gusts to around 20 knots becoming south 10 to 15 knots with gusts to around 20 knots after midnight. Rain showers likely. Waves 1 to 2 feet. $$ LSZ150-131600- Outer Apostle Islands Beyond 5 NM from Mainland- 123 AM CDT Wed May 13 2026 .TODAY...West wind 5 to 10 knots becoming southwest late in the afternoon. Mostly cloudy early in the morning then clearing. Waves 1 to 2 feet. .TONIGHT...Southeast wind 5 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...East wind 10 to 15 knots with gusts to around 20 knots. Sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...Southeast wind 5 to 10 knots becoming south 15 to 20 knots with gusts to around 25 knots in the late evening and overnight. Rain showers likely. Waves 1 to 2 feet building to 3 to 5 feet after midnight. Waves occasionally to 7 feet. A small craft advisory may be needed. $$ LSZ121-131600- Chequamegon Bay-Bayfield to Oak Point WI- 123 AM CDT Wed May 13 2026 .TODAY...Northwest wind 5 to 10 knots becoming northeast late in the afternoon. Mostly cloudy early in the morning then clearing. Waves 1 foot or less. .TONIGHT...East wind 5 knots in the evening becoming variable 10 knots or less, then becoming southeast 5 knots early in the morning. Mostly clear. Waves 1 foot or less. .THURSDAY...East wind 5 to 10 knots. Slight chance of rain showers in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...South wind 15 to 20 knots with gusts to around 25 knots. Rain showers likely through the night. Waves 1 to 3 feet. $$ LSZ148-131600- Oak Point to Saxon Harbor WI- 123 AM CDT Wed May 13 2026 .TODAY...Northwest wind 5 to 10 knots becoming north early in the afternoon, then becoming east late in the afternoon. Mostly cloudy in the morning then clearing. Waves 1 to 2 feet. .TONIGHT...East wind 5 knots becoming southeast after midnight. Mostly clear. Waves 1 foot or less. .THURSDAY...East wind 5 to 10 knots. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...South wind 5 to 10 knots rising to 15 to 20 knots with gusts to around 25 knots in the late evening and overnight. Rain showers likely. Waves 1 to 2 feet building to 2 to 4 feet after midnight. A small craft advisory may be needed. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH