


Nearshore Marine Forecast
Issued by NWS Duluth, MN
Issued by NWS Duluth, MN
308 FZUS53 KDLH 081536 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 1036 AM CDT Wed Oct 8 2025 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. LSZ140-082215- Grand Portage to Grand Marais MN- 1036 AM CDT Wed Oct 8 2025 .REST OF TODAY...Southwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. .TONIGHT...South wind 5 to 10 knots. Mostly clear. Waves 1 to 2 feet. .THURSDAY...Southwest wind 15 to 20 knots. Gusts up to 20 knots increasing to 30 knots. Sunny. Waves 1 to 3 feet building to 3 to 5 feet in the late morning and afternoon. A small craft advisory may be needed. .THURSDAY NIGHT...Southwest wind 15 to 20 knots with gusts to around 25 knots easing to 10 to 15 knots with gusts to around 20 knots early in the morning. Chance of rain showers through the night. Waves 2 to 4 feet. A small craft advisory may be needed. $$ LSZ141-082215- Grand Marais to Taconite Harbor MN- 1036 AM CDT Wed Oct 8 2025 .REST OF TODAY...West wind 5 knots becoming southwest in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...South wind 5 to 10 knots becoming southwest early in the morning. Mostly clear. Waves 1 to 2 feet. .THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots in the late morning and early afternoon. Sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...Southwest wind 5 to 10 knots with gusts to around 20 knots becoming west early in the morning. Chance of rain showers. Waves 1 to 2 feet. $$ LSZ142-082215- Taconite Harbor to Silver Bay Harbor MN- 1036 AM CDT Wed Oct 8 2025 .REST OF TODAY...West wind 5 knots becoming south in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...Southeast wind 5 knots becoming southwest after midnight. Mostly clear. Waves 1 foot or less. .THURSDAY...Southwest wind 5 to 10 knots becoming south late in the afternoon. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...Southwest wind 5 to 10 knots with gusts to around 20 knots becoming west early in the morning. Chance of rain showers. Waves 1 foot or less. $$ LSZ143-082215- Silver Bay Harbor to Two Harbors MN- 1036 AM CDT Wed Oct 8 2025 .REST OF TODAY...Southwest wind 5 knots becoming southeast late. Sunny. Waves 1 foot or less. .TONIGHT...Southeast wind 5 knots becoming southwest after midnight. Mostly clear. Waves 1 foot or less. .THURSDAY...South wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...Southwest wind 5 to 10 knots with gusts to around 20 knots becoming west early in the morning. Chance of rain showers. Waves 1 to 2 feet. $$ LSZ144-082215- Two Harbors to Duluth MN- 1036 AM CDT Wed Oct 8 2025 .REST OF TODAY...Southwest wind 5 knots becoming east late. Sunny. Waves 1 foot or less. .TONIGHT...East wind 5 knots becoming south after midnight. Mostly clear. Waves 1 foot or less. .THURSDAY...South wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 to 10 knots early in the morning. Slight chance of rain showers. Waves 1 to 2 feet. $$ LSZ145-082215- Duluth MN to Port Wing WI- 1036 AM CDT Wed Oct 8 2025 .REST OF TODAY...Southwest wind 5 knots becoming northwest early in the afternoon, then becoming east late. Sunny. Waves 1 foot or less. .TONIGHT...East wind 5 knots becoming south in the late evening and overnight. Mostly clear. Waves 1 foot or less. .THURSDAY...South wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 to 10 knots early in the morning. Slight chance of rain showers. Waves 1 to 2 feet. $$ LSZ146-082215- Port Wing to Sand Island WI- 1036 AM CDT Wed Oct 8 2025 .REST OF TODAY...Southwest wind 5 knots becoming west early in the afternoon, then becoming northeast late. Sunny. Waves 1 foot or less. .TONIGHT...East wind 5 knots becoming south early in the morning. Mostly clear. Waves 1 foot or less. .THURSDAY...South wind 5 to 10 knots. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...Southwest wind 5 to 10 knots with gusts to around 20 knots becoming southwest 5 to 10 knots early in the morning. Chance of rain showers. Waves 1 to 2 feet. $$ LSZ147-082215- Sand Island to Bayfield WI- 1036 AM CDT Wed Oct 8 2025 .REST OF TODAY...Southwest wind 5 knots late in the morning becoming variable 10 knots or less, then becoming east 5 knots late. Sunny. Waves 1 foot or less. .TONIGHT...Southeast wind 5 knots becoming south after midnight. Mostly clear. Waves 1 foot or less. .THURSDAY...South wind 5 to 10 knots. Gusts up to 20 knots in the late morning and afternoon. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...Southwest wind 5 to 10 knots with gusts to around 20 knots becoming southwest 5 to 10 knots early in the morning. Chance of rain showers through the night. Waves 1 foot or less. $$ LSZ150-082215- Outer Apostle Islands Beyond 5 NM from Mainland- 1036 AM CDT Wed Oct 8 2025 .REST OF TODAY...Southwest wind 5 knots becoming southeast late. Sunny. Waves 1 foot or less. .TONIGHT...Southeast wind 5 knots becoming south after midnight. Mostly clear. Waves 1 to 2 feet. .THURSDAY...South wind 10 to 15 knots with gusts to around 20 knots. Sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots. Chance of rain showers through the night. Waves 1 to 2 feet. $$ LSZ121-082215- Chequamegon Bay-Bayfield to Oak Point WI- 1036 AM CDT Wed Oct 8 2025 .REST OF TODAY...South wind 5 knots becoming east late. Sunny. Waves 1 foot or less. .TONIGHT...East wind 5 knots becoming south in the late evening and overnight. Clear. Waves 1 foot or less. .THURSDAY...South wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...Southwest wind 5 to 10 knots with gusts to around 20 knots. Chance of rain showers in the evening. Slight chance of rain showers after midnight. Waves 1 foot or less. $$ LSZ148-082215- Oak Point to Saxon Harbor WI- 1036 AM CDT Wed Oct 8 2025 .REST OF TODAY...Southwest wind 5 knots becoming west early in the afternoon, then becoming east late. Sunny. Waves 1 foot or less. .TONIGHT...East wind 5 knots becoming south in the late evening and overnight. Mostly clear. Waves 1 foot or less. .THURSDAY...South wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Sunny. Waves 1 foot or less. .THURSDAY NIGHT...South wind 10 knots becoming southwest in the late evening and overnight. Gusts up to 20 knots. Chance of rain showers through the night. Waves 1 to 2 feet. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes BJH