FZUS53 KDLH 102133 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 433 PM CDT Wed Jun 10 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. LSZ140-110400- Grand Portage to Grand Marais MN- 433 PM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY... .TONIGHT...East wind 5 to 10 knots becoming south late in the evening, then becoming southwest 10 to 15 knots with gusts to around 20 knots after midnight. Chance of showers and thunderstorms until early morning. Areas of dense fog early in the evening. Widespread dense fog in the late evening and overnight. Waves 1 to 3 feet. .THURSDAY...Southwest wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots in the late morning and afternoon. Widespread dense fog in the morning. Waves 1 to 3 feet building to 2 to 4 feet in the late morning and afternoon. A small craft advisory may be needed. .THURSDAY NIGHT...Southwest wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots in the late evening and overnight. Chance of rain showers in the evening, then slight chance of rain showers after midnight. Waves 2 to 4 feet. .FRIDAY...Southwest wind 20 to 25 knots. Gusts up to 25 knots increasing to 30 knots in the late morning and early afternoon, then decreasing to 25 knots late in the afternoon. Slight chance of rain showers. Waves 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed. $$ LSZ141-110400- Grand Marais to Taconite Harbor MN- 433 PM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY... .TONIGHT...East wind 5 to 10 knots becoming southwest in the late evening and early morning, then becoming southwest 5 to 10 knots late in the night. Areas of dense fog in the evening. Widespread dense fog after midnight. Rain showers likely and chance of thunderstorms in the evening, then slight chance of thunderstorms after midnight. Waves 1 to 2 feet. .THURSDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Widespread dense fog in the morning. Chance of rain showers in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening then 20 knots after midnight. Chance of rain showers in the evening. Waves 1 to 2 feet. .FRIDAY...West wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots in the late morning and afternoon. Slight chance of rain showers. Waves 1 to 2 feet building to 2 to 4 feet in the late morning and afternoon. $$ LSZ142-110400- Taconite Harbor to Silver Bay Harbor MN- 433 PM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY... .TONIGHT...Northeast wind 5 knots becoming west late in the evening, then becoming southwest after midnight. Showers and thunderstorms likely early in the evening, then chance of showers and thunderstorms late in the evening. Areas of dense fog early in the evening. Widespread dense fog in the late evening and overnight. Waves 1 to 2 feet. .THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots in the late morning and afternoon. Widespread dense fog in the morning. Chance of rain showers in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening then 20 knots after midnight. Chance of rain showers in the evening. Waves 1 foot or less. .FRIDAY...West wind 10 to 15 knots. Gusts up to 20 knots increasing to 25 knots in the late morning and afternoon. Slight chance of rain showers in the morning. Waves 1 to 2 feet. $$ LSZ143-110400- Silver Bay Harbor to Two Harbors MN- 433 PM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY... .TONIGHT...Northeast wind 5 knots becoming southwest with gusts to around 20 knots in the late evening and overnight. Showers and thunderstorms likely early in the evening. Chance of showers and thunderstorms late in the evening. Areas of dense fog in the evening. Widespread dense fog after midnight. Waves 1 to 2 feet. .THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots in the late morning and afternoon. Widespread dense fog in the morning. Slight chance of showers and thunderstorms in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the morning. Chance of rain showers in the evening. Waves 1 to 2 feet. .FRIDAY...West wind 10 to 15 knots. Gusts up to 20 knots increasing to 25 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 3 feet. $$ LSZ144-110400- Two Harbors to Duluth MN- 433 PM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY... .TONIGHT...East wind 5 knots becoming southwest 10 to 15 knots with gusts to around 20 knots in the late evening and overnight. Showers and thunderstorms likely early in the evening. Chance of showers and thunderstorms late in the evening. Areas of dense fog in the evening. Widespread dense fog after midnight. Waves 1 to 2 feet. .THURSDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Widespread dense fog in the morning. Chance of rain showers and slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots. Chance of rain showers and slight chance of thunderstorms in the evening. Waves 1 to 2 feet. .FRIDAY...West wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 3 feet. $$ LSZ145-110400- Duluth MN to Port Wing WI- 433 PM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY... .TONIGHT...East wind 5 to 10 knots becoming southwest 10 to 15 knots with gusts to around 20 knots in the late evening and overnight. Rain showers likely early in the evening. Chance of thunderstorms in the evening. Chance of rain showers late in the evening. Areas of dense fog in the evening. Widespread dense fog after midnight. Waves 1 to 2 feet. .THURSDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Widespread dense fog in the morning. Chance of rain showers and slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots. Chance of rain showers and slight chance of thunderstorms in the evening. Waves 1 to 2 feet. .FRIDAY...West wind 15 to 20 knots. Gusts up to 25 knots increasing to 30 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 3 feet building to 2 to 4 feet in the late morning and afternoon. $$ LSZ146-110400- Port Wing to Sand Island WI- 433 PM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY... .TONIGHT...Northeast wind 5 knots becoming southwest 10 to 15 knots with gusts to around 20 knots in the late evening and early morning, then easing to 10 knots with gusts to around 20 knots late in the night. Showers and thunderstorms likely early in the evening, then chance of showers and thunderstorms late in the evening. Patchy dense fog early in the evening. Widespread dense fog in the late evening and overnight. Waves 1 to 2 feet. .THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the morning then 20 knots in the afternoon. Widespread dense fog in the morning. Chance of rain showers and slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots. Chance of rain showers in the evening. Waves 1 to 2 feet. .FRIDAY...Southwest wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 3 feet building to 2 to 4 feet in the late morning and afternoon. $$ LSZ147-110400- Sand Island to Bayfield WI- 433 PM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY... .TONIGHT...Southeast wind 5 to 10 knots becoming southwest 10 to 15 knots with gusts to around 25 knots in the late evening and overnight. Rain showers likely early in the evening. Chance of thunderstorms in the evening. Chance of rain showers late in the evening. Areas of dense fog in the evening, then widespread dense fog after midnight. Waves 1 to 2 feet. .THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the morning. Areas of dense fog in the morning. Chance of rain showers in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots in the late evening and overnight. Slight chance of rain showers in the evening. Waves 1 to 2 feet. .FRIDAY...West wind 10 to 15 knots with gusts to around 25 knots. Sunny. Waves 1 to 3 feet. $$ LSZ150-110400- Outer Apostle Islands Beyond 5 NM from Mainland- 433 PM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY... .TONIGHT...Southeast wind 5 to 10 knots becoming southwest 10 to 15 knots with gusts to around 25 knots in the late evening and overnight. Chance of showers and thunderstorms in the evening. Patchy dense fog early in the evening. Areas of dense fog in the late evening and early morning, then widespread dense fog late in the night. Waves 1 to 2 feet. .THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the morning then 20 knots in the afternoon. Areas of dense fog in the morning. Chance of rain showers in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots increasing to 25 knots after midnight. Chance of rain showers in the evening. Waves 1 to 2 feet. .FRIDAY...West wind 15 to 20 knots with gusts to around 25 knots. Sunny. Waves 1 to 3 feet. $$ LSZ121-110400- Chequamegon Bay-Bayfield to Oak Point WI- 433 PM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY... .TONIGHT...South wind 5 to 10 knots becoming southwest with gusts to around 20 knots in the late evening and overnight. Showers and thunderstorms likely in the evening. Patchy dense fog in the evening, then areas of dense fog after midnight. Waves 1 foot or less. .THURSDAY...Southwest wind 10 to 15 knots easing to 10 knots late in the afternoon. Gusts up to 20 knots early in the afternoon. Areas of dense fog in the morning. Chance of rain showers and slight chance of thunderstorms in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots in the late evening and overnight. Chance of rain showers in the evening. Waves 1 foot or less. .FRIDAY...West wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots in the late morning and afternoon. Sunny. Waves 1 to 2 feet. $$ LSZ148-110400- Oak Point to Saxon Harbor WI- 433 PM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY... .TONIGHT...South wind 5 to 10 knots with gusts to around 20 knots becoming southwest with gusts to around 20 knots in the late evening and overnight. Showers and thunderstorms likely in the evening. Patchy dense fog in the evening. Areas of dense fog after midnight. Waves 1 to 2 feet. .THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Areas of dense fog in the morning. Chance of rain showers and slight chance of thunderstorms in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the late evening and overnight. Chance of rain showers in the evening. Waves 1 foot or less. .FRIDAY...West wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots in the late morning and afternoon. Sunny. Waves 1 to 3 feet. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH