


Nearshore Marine Forecast
Issued by NWS Duluth, MN
Issued by NWS Duluth, MN
830 FZUS53 KDLH 291503 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 1003 AM CDT Sun Jun 29 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. LSZ140-141-292215- Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- 1003 AM CDT Sun Jun 29 2025 .REST OF TODAY...Southwest wind 5 to 10 knots. Patchy fog late in the morning. Slight chance of showers and thunderstorms early in the afternoon. Chance of showers and thunderstorms late. Waves 1 to 2 feet. .TONIGHT...Southwest wind 5 to 10 knots. Chance of thunderstorms and slight chance of rain showers in the evening. Waves 1 to 2 feet. .MONDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Chance of showers and thunderstorms in the afternoon. Waves 1 to 3 feet. .MONDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Mostly clear. Waves 1 to 3 feet. $$ LSZ142-143-292215- Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN- 1003 AM CDT Sun Jun 29 2025 .REST OF TODAY...Southwest wind 5 to 10 knots. Slight chance of rain showers early in the afternoon. Chance of thunderstorms in the afternoon. Chance of rain showers late. Waves 1 foot or less. .TONIGHT...West wind 5 to 10 knots. Slight chance of showers and thunderstorms in the evening. Waves 1 foot or less. .MONDAY...West wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Rain showers likely and chance of thunderstorms in the afternoon. Waves 1 to 2 feet. .MONDAY NIGHT...West wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Mostly clear. Waves 1 foot or less. $$ LSZ144-292215- Two Harbors to Duluth MN- 1003 AM CDT Sun Jun 29 2025 .REST OF TODAY...Southwest wind 5 to 10 knots. Chance of showers and thunderstorms in the afternoon. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots. Chance of showers and thunderstorms in the evening. Waves 1 foot or less. .MONDAY...West wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Slight chance of rain showers through the day. Chance of thunderstorms in the afternoon. Waves 1 to 2 feet. .MONDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Mostly clear. Waves 1 to 2 feet. $$ LSZ145-292215- Duluth MN to Port Wing WI- 1003 AM CDT Sun Jun 29 2025 .REST OF TODAY...Southwest wind 5 to 10 knots. Chance of showers and thunderstorms in the afternoon. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots. Slight chance of showers and thunderstorms in the evening. Waves 1 foot or less. .MONDAY...West wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Slight chance of rain showers through the day. Chance of thunderstorms in the afternoon. Waves 1 to 2 feet. .MONDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Mostly clear. Waves 1 to 2 feet. $$ LSZ146-292215- Port Wing to Sand Island WI- 1003 AM CDT Sun Jun 29 2025 .REST OF TODAY...Southwest wind 5 to 10 knots. Slight chance of showers and thunderstorms early in the afternoon. Chance of showers and thunderstorms late. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots. Chance of showers and thunderstorms in the evening. Waves 1 foot or less. .MONDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Chance of showers and thunderstorms in the afternoon. Waves 1 to 2 feet. .MONDAY NIGHT...West wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Mostly clear. Waves 1 to 2 feet. $$ LSZ147-292215- Sand Island to Bayfield WI- 1003 AM CDT Sun Jun 29 2025 .REST OF TODAY...Southwest wind 5 to 10 knots. Slight chance of rain showers in the late morning and early afternoon. Slight chance of thunderstorms early in the afternoon, then chance of showers and thunderstorms late. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots. Chance of showers and thunderstorms in the evening, then slight chance of rain showers after midnight. Waves 1 foot or less. .MONDAY...West wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Chance of rain showers and slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet. .MONDAY NIGHT...West wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Mostly clear. Waves 1 to 2 feet. $$ LSZ150-292215- Outer Apostle Islands Beyond 5 NM from Mainland- 1003 AM CDT Sun Jun 29 2025 .REST OF TODAY...Southwest wind 5 to 10 knots. Slight chance of showers and thunderstorms early in the afternoon. Chance of showers and thunderstorms late. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots. Chance of thunderstorms in the evening. Chance of rain showers through the night. Waves 1 to 2 feet. .MONDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Chance of rain showers and slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet. .MONDAY NIGHT...West wind 10 to 15 knots easing to 10 knots early in the morning. Mostly clear. Waves 1 to 2 feet. $$ LSZ121-292215- Chequamegon Bay-Bayfield to Oak Point WI- 1003 AM CDT Sun Jun 29 2025 .REST OF TODAY...Southwest wind 5 to 10 knots. Slight chance of showers late in the morning, then chance of showers and thunderstorms in the afternoon. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots easing to 5 knots early in the morning. Chance of showers and thunderstorms in the evening. Waves 1 foot or less. .MONDAY...West wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Chance of showers and thunderstorms in the afternoon. Waves 1 foot or less. .MONDAY NIGHT...West wind 5 to 10 knots. Mostly clear. Waves 1 foot or less. $$ LSZ148-292215- Oak Point to Saxon Harbor WI- 1003 AM CDT Sun Jun 29 2025 .REST OF TODAY...Southwest wind 5 to 10 knots. Slight chance of showers in the late morning and early afternoon. Slight chance of thunderstorms early in the afternoon, then chance of showers and thunderstorms late. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots. Chance of thunderstorms in the evening. Chance of rain showers through the night. Waves 1 foot or less. .MONDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots late in the afternoon. Chance of showers and thunderstorms in the afternoon. Waves 1 foot or less. .MONDAY NIGHT...West wind 5 to 10 knots. Mostly clear. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes Unruh