FZUS53 KDLH 241000 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 500 AM CDT Sun May 24 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. LSZ140-241600- Grand Portage to Grand Marais MN- 500 AM CDT Sun May 24 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY... .TODAY...Southwest wind 10 to 15 knots with gusts to around 20 knots. Areas of dense fog early in the morning. Patchy dense fog in the late morning and afternoon. Slight chance of rain showers in the afternoon. Slight chance of thunderstorms late in the afternoon. Waves 1 to 2 feet. .TONIGHT...Southwest wind 5 to 10 knots becoming west early in the morning. Patchy dense fog. Waves 1 to 2 feet. .MONDAY...Southeast wind 5 knots becoming south in the afternoon. Patchy dense fog in the morning. Slight chance of rain showers in the morning. Waves 1 foot or less. .MONDAY NIGHT...Southwest wind 5 to 10 knots. Slight chance of thunderstorms in the evening. Slight chance of rain showers through the night. Waves 1 foot or less. $$ LSZ141-241600- Grand Marais to Taconite Harbor MN- 500 AM CDT Sun May 24 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY... .TODAY...Southwest wind 5 to 10 knots becoming south late in the afternoon. Areas of dense fog early in the morning. Patchy dense fog in the late morning and afternoon. Slight chance of rain showers in the afternoon. Slight chance of thunderstorms late in the afternoon. Waves 1 to 2 feet. .TONIGHT...South wind 5 knots early in the evening becoming variable 10 knots or less. Patchy dense fog. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming southeast 5 knots in the late morning and afternoon. Patchy dense fog in the morning. Slight chance of rain showers through the day. Waves 1 foot or less. .MONDAY NIGHT...Variable winds 10 knots or less becoming northwest 5 knots early in the morning. Slight chance of thunderstorms in the evening. Slight chance of rain showers through the night. Waves 1 foot or less. $$ LSZ142-241600- Taconite Harbor to Silver Bay Harbor MN- 500 AM CDT Sun May 24 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY... .TODAY...Southwest wind 5 knots becoming south late in the afternoon. Patchy dense fog until late afternoon. Slight chance of rain showers in the afternoon. Slight chance of thunderstorms late in the afternoon. Waves 1 foot or less. .TONIGHT...Variable winds 10 knots or less. Patchy dense fog. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less. Patchy dense fog in the morning. Slight chance of rain showers in the morning. Waves 1 foot or less. .MONDAY NIGHT...Variable winds 10 knots or less. Slight chance of thunderstorms in the evening. Slight chance of rain showers through the night. Waves 1 foot or less. $$ LSZ143-241600- Silver Bay Harbor to Two Harbors MN- 500 AM CDT Sun May 24 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY... .TODAY...Southwest wind 5 knots becoming south late in the afternoon. Patchy dense fog until late afternoon. Slight chance of rain showers in the afternoon. Slight chance of thunderstorms late in the afternoon. Waves 1 foot or less. .TONIGHT...Variable winds 10 knots or less. Patchy dense fog through the night. Slight chance of thunderstorms in the evening. Slight chance of rain showers through the night. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming southeast 5 knots in the late morning and afternoon. Patchy dense fog in the morning. Slight chance of rain showers in the morning. Waves 1 foot or less. .MONDAY NIGHT...North wind 5 knots in the evening becoming variable 10 knots or less. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 foot or less. $$ LSZ144-241600- Two Harbors to Duluth MN- 500 AM CDT Sun May 24 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY... .TODAY...Southwest wind 5 knots becoming south late in the afternoon. Areas of dense fog early in the morning, then patchy dense fog in the late morning and early afternoon. Slight chance of rain showers in the afternoon. Slight chance of thunderstorms late in the afternoon. Waves 1 foot or less. .TONIGHT...West wind 5 knots becoming north late in the evening, then becoming west after midnight becoming southwest early in the morning. Patchy dense fog through the night. Slight chance of thunderstorms in the evening. Slight chance of rain showers through the night. Waves 1 foot or less. .MONDAY...South wind 5 knots becoming southeast in the afternoon. Patchy dense fog in the morning. Slight chance of rain showers in the morning. Waves 1 foot or less. .MONDAY NIGHT...East wind 5 knots becoming south late in the evening, then becoming west after midnight. Partly cloudy. Waves 1 foot or less. $$ LSZ145-241600- Duluth MN to Port Wing WI- 500 AM CDT Sun May 24 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY... .TODAY...Southwest wind 5 knots becoming south in the afternoon. Areas of dense fog early in the morning, then patchy dense fog late in the morning. Areas of dense fog early in the afternoon. Slight chance of rain showers in the afternoon. Slight chance of thunderstorms late in the afternoon. Waves 1 foot or less. .TONIGHT...Southwest wind 5 knots becoming southeast late in the evening, then becoming southwest after midnight. Patchy dense fog through the night. Slight chance of thunderstorms in the evening. Slight chance of rain showers through the night. Waves 1 foot or less. .MONDAY...South wind 5 knots becoming east in the afternoon. Patchy dense fog in the morning. Slight chance of rain showers in the morning. Waves 1 foot or less. .MONDAY NIGHT...East wind 5 knots becoming southwest after midnight. Partly cloudy. Waves 1 foot or less. $$ LSZ146-241600- Port Wing to Sand Island WI- 500 AM CDT Sun May 24 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY... .TODAY...Southwest wind 5 knots. Areas of dense fog early in the morning, then patchy dense fog in the late morning and early afternoon. Slight chance of showers and thunderstorms late in the afternoon. Waves 1 foot or less. .TONIGHT...Variable winds 10 knots or less becoming southwest 5 knots late in the evening, then becoming west after midnight becoming south early in the morning. Patchy dense fog through the night. Slight chance of thunderstorms in the evening. Slight chance of rain showers through the night. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming northeast 5 knots early in the afternoon, then becoming east late in the afternoon. Slight chance of rain showers in the morning. Waves 1 foot or less. .MONDAY NIGHT...Northeast wind 5 knots early in the evening becoming variable 10 knots or less, then becoming southwest 5 knots early in the morning. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 foot or less. $$ LSZ147-241600- Sand Island to Bayfield WI- 500 AM CDT Sun May 24 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY... .TODAY...Southwest wind 5 knots becoming south in the afternoon. Areas of dense fog early in the morning, then patchy dense fog in the late morning and early afternoon. Slight chance of showers and thunderstorms late in the afternoon. Waves 1 foot or less. .TONIGHT...South wind 5 knots becoming southwest after midnight. Slight chance of thunderstorms in the evening. Slight chance of rain showers through the night. Waves 1 foot or less. .MONDAY...Southwest wind 5 knots becoming east in the late morning and afternoon. Slight chance of rain showers in the morning. Waves 1 foot or less. .MONDAY NIGHT...Southeast wind 5 knots becoming northwest late in the evening, then becoming southwest after midnight. Slight chance of thunderstorms in the evening. Slight chance of rain showers through the night. Waves 1 foot or less. $$ LSZ150-241600- Outer Apostle Islands Beyond 5 NM from Mainland- 500 AM CDT Sun May 24 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY... .TODAY...Southwest wind 5 knots becoming south in the afternoon. Areas of dense fog early in the morning, then widespread dense fog in the late morning and early afternoon. Slight chance of rain showers late in the afternoon. Waves 1 foot or less. .TONIGHT...South wind 5 to 10 knots becoming southwest after midnight. Slight chance of rain showers after midnight. Waves 1 foot or less. .MONDAY...South wind 5 knots becoming east in the afternoon. Slight chance of rain showers in the morning. Waves 1 foot or less. .MONDAY NIGHT...South wind 5 knots becoming southwest in the late evening and overnight. Slight chance of showers and thunderstorms. Waves 1 foot or less. $$ LSZ121-241600- Chequamegon Bay-Bayfield to Oak Point WI- 500 AM CDT Sun May 24 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY... .TODAY...Southwest wind 5 knots. Patchy dense fog in the morning. Slight chance of rain showers late in the afternoon. Waves 1 foot or less. .TONIGHT...Southwest wind 5 knots. Slight chance of thunderstorms in the evening. Slight chance of rain showers through the night. Waves 1 foot or less. .MONDAY...South wind 5 to 10 knots. Slight chance of rain showers in the morning. Waves 1 foot or less. .MONDAY NIGHT...Southwest wind 5 knots. Partly cloudy. Waves 1 foot or less. $$ LSZ148-241600- Oak Point to Saxon Harbor WI- 500 AM CDT Sun May 24 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY... .TODAY...Southwest wind 5 knots becoming southeast in the afternoon. Areas of dense fog early in the morning, then patchy dense fog late in the morning. Widespread dense fog early in the afternoon. Slight chance of rain showers late in the afternoon. Waves 1 foot or less. .TONIGHT...Southwest wind 5 knots. Slight chance of thunderstorms in the evening. Slight chance of rain showers through the night. Waves 1 foot or less. .MONDAY...Southwest wind 5 knots becoming south in the afternoon. Slight chance of rain showers in the morning. Waves 1 foot or less. .MONDAY NIGHT...Southwest wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH