


Nearshore Marine Forecast
Issued by NWS Duluth, MN
Issued by NWS Duluth, MN
268 FZUS53 KDLH 040310 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 1010 PM CDT Sun Aug 3 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. LSZ140-041015- Grand Portage to Grand Marais MN- 1010 PM CDT Sun Aug 3 2025 .REST OF TONIGHT...West wind 5 to 10 knots. Areas of smoke through the night. Waves 1 foot or less. .MONDAY...Northeast wind 5 knots becoming east in the late morning and afternoon. Areas of smoke through the day. Chance of sprinkles in the morning. Chance of rain showers in the afternoon. Waves 1 foot or less. .MONDAY NIGHT...Northeast wind 5 to 10 knots. Areas of smoke in the evening. Chance of sprinkles in the evening. Waves 1 foot or less. .TUESDAY...East wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. $$ LSZ141>143-041015- Grand Marais to Taconite Harbor MN- Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN- 1010 PM CDT Sun Aug 3 2025 .REST OF TONIGHT...Northeast wind 5 knots becoming north after midnight. Areas of smoke through the night. Chance of sprinkles late in the evening. Chance of sprinkles toward daybreak. Waves 1 foot or less. .MONDAY...Northeast wind 5 to 10 knots. Areas of smoke through the day. Chance of showers in the morning. Slight chance of showers in the afternoon. Waves 1 to 2 feet. .MONDAY NIGHT...Northeast wind 5 to 10 knots. Areas of smoke in the evening. Slight chance of showers in the evening. Waves 1 to 2 feet. .TUESDAY...East wind 5 to 10 knots. Partly sunny. Waves 1 foot or less. $$ LSZ144-145-041015- Two Harbors to Duluth MN-Duluth MN to Port Wing WI- 1010 PM CDT Sun Aug 3 2025 .REST OF TONIGHT...Southeast wind 5 knots becoming northeast after midnight. Areas of smoke. Chance of sprinkles. Waves 1 foot or less. .MONDAY...Northeast wind 10 to 15 knots. Areas of smoke. Slight chance of showers. Waves 1 to 2 feet. .MONDAY NIGHT...Northeast wind 10 to 15 knots. Areas of smoke in the evening. Slight chance of showers in the evening. Waves 1 to 2 feet. .TUESDAY...East wind 5 to 10 knots. Partly sunny. Waves 1 to 2 feet. $$ LSZ146-041015- Port Wing to Sand Island WI- 1010 PM CDT Sun Aug 3 2025 .REST OF TONIGHT...South wind 5 knots becoming east toward daybreak. Areas of smoke through the night. Chance of sprinkles late in the evening. Chance of sprinkles toward daybreak. Waves 1 foot or less. .MONDAY...East wind 5 knots becoming northeast 10 to 15 knots in the afternoon. Chance of sprinkles in the morning, then slight chance of showers in the afternoon. Waves 1 foot or less. .MONDAY NIGHT...East wind 5 to 10 knots. Areas of smoke in the evening. Slight chance of showers in the evening. Waves 1 to 2 feet. .TUESDAY...East wind 5 to 10 knots. Partly sunny. Waves 1 foot or less. $$ LSZ147-041015- Sand Island to Bayfield WI- 1010 PM CDT Sun Aug 3 2025 .REST OF TONIGHT...South wind 5 knots. Areas of smoke through the night. Chance of sprinkles toward daybreak. Waves 1 foot or less. .MONDAY...Southeast wind 5 knots becoming east in the afternoon. Areas of smoke through the day. Chance of sprinkles in the morning. Chance of showers in the afternoon. Waves 1 foot or less. .MONDAY NIGHT...East wind 5 to 10 knots. Areas of smoke in the evening. Waves 1 foot or less. .TUESDAY...East wind 5 knots. Partly sunny. Waves 1 foot or less. $$ LSZ150-041015- Outer Apostle Islands Beyond 5 NM from Mainland- 1010 PM CDT Sun Aug 3 2025 .REST OF TONIGHT...South wind 5 knots. Areas of smoke. Waves 1 foot or less. .MONDAY...Southeast wind 5 knots becoming east in the late morning and afternoon. Areas of smoke through the day. Chance of sprinkles in the morning. Chance of showers in the afternoon. Waves 1 foot or less. .MONDAY NIGHT...East wind 5 to 10 knots. Areas of smoke in the evening. Chance of sprinkles in the evening. Waves 1 to 2 feet. .TUESDAY...East wind 5 knots rising to 5 to 10 knots late in the afternoon. Partly sunny. Waves 1 to 2 feet. $$ LSZ121-041015- Chequamegon Bay-Bayfield to Oak Point WI- 1010 PM CDT Sun Aug 3 2025 .REST OF TONIGHT...Variable winds 10 knots or less becoming southwest 5 knots after midnight. Areas of smoke through the night. Waves 1 foot or less. .MONDAY...South wind 5 knots becoming east in the late morning and afternoon. Areas of smoke through the day. Chance of sprinkles in the morning. Chance of showers in the afternoon. Waves 1 foot or less. .MONDAY NIGHT...Northeast wind 5 knots becoming southeast early in the morning. Areas of smoke in the evening. Chance of sprinkles in the evening. Waves 1 foot or less. .TUESDAY...Southeast wind 5 knots. Partly sunny. Waves 1 foot or less. $$ LSZ148-041015- Oak Point to Saxon Harbor WI- 1010 PM CDT Sun Aug 3 2025 .REST OF TONIGHT...Southwest wind 5 knots. Areas of smoke. Waves 1 foot or less. .MONDAY...South wind 5 knots becoming northeast in the late morning and afternoon. Areas of smoke through the day. Chance of sprinkles through the day. Waves 1 foot or less. .MONDAY NIGHT...East wind 5 to 10 knots becoming southeast after midnight. Areas of smoke in the evening. Chance of sprinkles in the evening. Waves 1 foot or less. .TUESDAY...Southeast wind 5 knots becoming east late in the afternoon. Mostly sunny. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes NLy