FZUS53 KDLH 130245 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 945 PM CDT Tue May 12 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. LSZ140-131000- Grand Portage to Grand Marais MN- 945 PM CDT Tue May 12 2026 .REST OF TONIGHT...North wind 10 to 15 knots. Gusts up to 25 knots. Slight chance of rain showers late in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. .WEDNESDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 to 2 feet. .WEDNESDAY NIGHT...North wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. .THURSDAY...East wind 5 knots rising to 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 2 feet. $$ LSZ141-131000- Grand Marais to Taconite Harbor MN- 945 PM CDT Tue May 12 2026 .REST OF TONIGHT...Northwest wind 5 to 10 knots. Slight chance of rain showers late in the evening. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots. Sunny. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Northwest wind 5 knots early in the evening becoming variable 10 knots or less, then becoming northeast 5 knots after midnight. Mostly clear. Waves 1 foot or less. .THURSDAY...East wind 10 to 15 knots with gusts to around 20 knots. Mostly sunny. Waves 1 to 2 feet. $$ LSZ142-131000- Taconite Harbor to Silver Bay Harbor MN- 945 PM CDT Tue May 12 2026 .REST OF TONIGHT...Northwest wind 5 knots. Slight chance of rain showers in the late evening and early morning. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots becoming west late in the afternoon. Sunny. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Northwest wind 5 knots early in the evening becoming variable 10 knots or less, then becoming north 5 knots after midnight. Mostly clear. Waves 1 foot or less. .THURSDAY...Northeast wind 5 knots becoming east in the late morning and afternoon. Mostly sunny. Waves 1 to 2 feet. $$ LSZ143-131000- Silver Bay Harbor to Two Harbors MN- 945 PM CDT Tue May 12 2026 .REST OF TONIGHT...West wind 5 knots becoming northwest after midnight. Slight chance of rain showers in the late evening and early morning. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots becoming south late in the afternoon. Sunny. Waves 1 to 2 feet. .WEDNESDAY NIGHT...North wind 5 knots early in the evening becoming variable 10 knots or less, then becoming north 5 knots early in the morning. Mostly clear. Waves 1 foot or less. .THURSDAY...Northeast wind 5 knots becoming east 10 to 15 knots with gusts to around 20 knots in the afternoon. Mostly sunny. Waves 1 to 2 feet. $$ LSZ144-131000- Two Harbors to Duluth MN- 945 PM CDT Tue May 12 2026 .REST OF TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots late in the evening. Slight chance of rain showers late in the evening. Waves 1 foot or less. .WEDNESDAY...Northwest wind 5 to 10 knots becoming east late in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Northeast wind 5 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...East wind 10 to 15 knots with gusts to around 20 knots. Mostly sunny. Waves 1 to 2 feet. $$ LSZ145-131000- Duluth MN to Port Wing WI- 945 PM CDT Tue May 12 2026 .REST OF TONIGHT...Northwest wind 10 to 15 knots. Slight chance of rain showers late in the evening. Waves 1 foot or less. .WEDNESDAY...Northwest wind 5 to 10 knots becoming east late in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...East wind 5 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...East wind 10 to 15 knots with gusts to around 20 knots. Mostly sunny. Waves 1 to 2 feet. $$ LSZ146-131000- Port Wing to Sand Island WI- 945 PM CDT Tue May 12 2026 .REST OF TONIGHT...Northwest wind 5 to 10 knots. Slight chance of rain showers in the late evening and early morning. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots becoming west early in the afternoon, then becoming southeast late in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...Northeast wind 5 knots becoming east after midnight. Mostly clear. Waves 1 foot or less. .THURSDAY...Variable winds 10 knots or less becoming east 5 to 10 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. $$ LSZ147-131000- Sand Island to Bayfield WI- 945 PM CDT Tue May 12 2026 .REST OF TONIGHT...Northwest wind 5 to 10 knots. Slight chance of rain showers in the late evening and early morning. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...East wind 5 knots early in the evening becoming variable 10 knots or less, then becoming northeast 5 knots after midnight. Mostly clear. Waves 1 foot or less. .THURSDAY...East wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. $$ LSZ150-131000- Outer Apostle Islands Beyond 5 NM from Mainland- 945 PM CDT Tue May 12 2026 .REST OF TONIGHT...Northwest wind 5 to 10 knots. Slight chance of rain showers in the late evening and early morning. Waves 1 to 3 feet. .WEDNESDAY...Northwest wind 5 to 10 knots becoming west late in the afternoon. Sunny. Waves 1 to 2 feet. .WEDNESDAY NIGHT...South wind 5 knots becoming east 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. Mostly sunny. Waves 1 to 2 feet. $$ LSZ121-131000- Chequamegon Bay-Bayfield to Oak Point WI- 945 PM CDT Tue May 12 2026 .REST OF TONIGHT...North wind 5 to 10 knots becoming northwest toward daybreak. Chance of rain showers late in the evening, then slight chance of rain showers after midnight. Waves 1 foot or less. .WEDNESDAY...North wind 5 to 10 knots becoming northeast late in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY NIGHT...East wind 5 knots early in the evening becoming variable 10 knots or less, then becoming southeast 5 knots early in the morning. Mostly clear. Waves 1 foot or less. .THURSDAY...Southeast wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. $$ LSZ148-131000- Oak Point to Saxon Harbor WI- 945 PM CDT Tue May 12 2026 .REST OF TONIGHT...North wind 5 to 10 knots. Chance of rain showers late in the evening, then slight chance of rain showers after midnight. Waves 1 to 2 feet. .WEDNESDAY...Northwest wind 5 knots becoming northeast late in the afternoon. Mostly sunny. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Southeast wind 5 knots. Mostly clear. Waves 1 foot or less. .THURSDAY...East wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH