FZUS53 KDLH 130523 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 1222 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- 1222 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 5 to 10 knots rising to 10 to 15 knots with gusts to around 20 knots in the afternoon. Mostly sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...East wind 15 to 20 knots becoming south with gusts to around 30 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. $$ LSZ141-131600- Grand Marais to Taconite Harbor MN- 1222 AM CDT Wed May 13 2026 .TODAY...Northwest wind 5 knots becoming west late in the afternoon. Mostly cloudy early in the morning then becoming mostly sunny. Waves 1 to 2 feet. .TONIGHT...Northwest wind 5 knots early in the evening becoming variable 10 knots or less, then becoming northeast 5 knots after midnight. Mostly clear. Waves 1 foot or less. .THURSDAY...East wind 10 to 15 knots with gusts to around 20 knots. Mostly sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...East wind 10 to 15 knots with gusts to around 20 knots becoming southeast 5 to 10 knots after midnight. Rain showers through the night. Waves 1 to 3 feet building to 2 to 4 feet in the late evening and overnight. $$ LSZ142-131600- Taconite Harbor to Silver Bay Harbor MN- 1222 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. Mostly sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...Northeast wind 5 to 10 knots becoming south early in the morning. Rain showers likely in the evening, then chance of rain showers after midnight. Waves 1 to 3 feet. $$ LSZ143-131600- Silver Bay Harbor to Two Harbors MN- 1222 AM CDT Wed May 13 2026 .TODAY...Northwest wind 5 knots becoming south late in the afternoon. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...East wind 5 knots early in the evening becoming variable 10 knots or less, then becoming northeast 5 knots after midnight. Mostly clear. Waves 1 foot or less. .THURSDAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Mostly sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...East wind 5 to 10 knots becoming south 10 to 15 knots with gusts to around 20 knots early in the morning. Rain showers likely through the night. Waves 1 to 3 feet. $$ LSZ144-131600- Two Harbors to Duluth MN- 1222 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...East wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Sunny in the morning then becoming partly 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. Rain showers likely through the night. Waves 1 to 2 feet building to 2 to 4 feet after midnight. A small craft advisory may be needed. $$ LSZ145-131600- Duluth MN to Port Wing WI- 1222 AM CDT Wed May 13 2026 .TODAY...Northwest wind 5 to 10 knots becoming northeast late in the afternoon. Mostly sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots. Clear. Waves 1 foot or less. .THURSDAY...East wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Mostly sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...East wind 10 to 15 knots with gusts to around 20 knots becoming southeast 15 to 20 knots with gusts to around 25 knots late in the evening, then becoming south 20 to 25 knots with gusts to around 30 knots after midnight. Rain showers likely through the night. Waves 1 to 2 feet building to 2 to 4 feet after midnight. A small craft advisory may be needed. $$ LSZ146-131600- Port Wing to Sand Island WI- 1222 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 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...Southeast 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 through the night. Waves 1 to 3 feet. $$ LSZ147-131600- Sand Island to Bayfield WI- 1222 AM CDT Wed May 13 2026 .TODAY...Northwest wind 5 to 10 knots becoming south late in the afternoon. Mostly cloudy early in the morning then clearing. Waves 1 foot or less. .TONIGHT...Southeast wind 5 knots in the evening becoming variable 10 knots or less, then becoming southeast 5 knots early in the morning. Mostly clear. Waves 1 foot or less. .THURSDAY...East wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...Southeast wind 10 to 15 knots with gusts to around 20 knots becoming south 15 to 20 knots with gusts to around 30 knots after midnight. Rain showers likely in the evening, then chance of rain showers after midnight. Waves 1 to 2 feet. $$ LSZ150-131600- Outer Apostle Islands Beyond 5 NM from Mainland- 1222 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. Mostly sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...Southeast wind 5 to 10 knots becoming south 20 to 25 knots with gusts to around 30 knots in the late evening and overnight. Rain showers through the night. Waves 1 to 3 feet building to 3 to 5 feet after midnight. Waves occasionally to 7 feet. A small craft advisory may be needed. $$ LSZ121-131600- Chequamegon Bay-Bayfield to Oak Point WI- 1222 AM CDT Wed May 13 2026 .TODAY...Northwest wind 5 to 10 knots becoming northeast late in the afternoon. Mostly cloudy early in the morning then clearing. Waves 1 foot or less. .TONIGHT...East wind 5 knots in the evening becoming variable 10 knots or less, then becoming southeast 5 knots early in the morning. Mostly clear. Waves 1 foot or less. .THURSDAY...East wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .THURSDAY NIGHT...Southeast wind 10 knots with gusts to around 20 knots becoming south 15 to 20 knots with gusts to around 30 knots in the late evening and overnight. Rain showers likely through the night. Waves 1 to 3 feet. $$ LSZ148-131600- Oak Point to Saxon Harbor WI- 1222 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...Southeast wind 5 to 10 knots becoming south 20 to 25 knots with gusts to around 30 knots in the late evening and overnight. Rain showers likely through the night. 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