FZUS53 KDLH 100751 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 251 AM 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. LSZ140-101600- Grand Portage to Grand Marais MN- 251 AM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...Northeast 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. Chance of rain showers early in the morning, then slight chance of rain showers late in the morning. Chance of showers and thunderstorms in the afternoon. Waves 1 to 3 feet. .TONIGHT...East wind 10 to 15 knots with gusts to around 20 knots becoming west 5 to 10 knots late in the evening, then becoming southwest 15 to 20 knots after midnight. Rain showers likely and chance of thunderstorms in the evening. Patchy fog through the night. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .THURSDAY...Southwest wind 15 to 20 knots. Gusts up to 25 knots late in the morning increasing to 30 knots, then decreasing to 25 knots late in the afternoon. Patchy fog in the morning. Slight chance of rain showers in the afternoon. Waves 4 to 6 feet. Waves occasionally to 7 feet. 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 early morning, then increasing to 25 knots early in the morning. Chance of rain showers. Waves 3 to 5 feet. A small craft advisory may be needed. $$ LSZ141-101600- Grand Marais to Taconite Harbor MN- 251 AM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Areas of dense fog early in the morning. Patchy dense fog in the late morning and afternoon. Chance of rain showers and slight chance of thunderstorms in the morning, then rain showers with thunderstorms likely in the afternoon. Waves 1 to 3 feet. .TONIGHT...East wind 5 to 10 knots with gusts to around 20 knots becoming northeast late in the evening, then becoming southwest with gusts to around 20 knots after midnight. Rain showers with thunderstorms likely in the evening. Patchy fog through the night. Waves 1 to 3 feet. .THURSDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots late in the morning increasing to 25 knots, then decreasing to 20 knots late in the afternoon. Slight chance of rain showers in the afternoon. Waves 1 to 2 feet building to 1 to 3 feet in the afternoon. .THURSDAY NIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots early in the evening then 20 knots after midnight. Chance of rain showers through the night. Waves 1 to 3 feet. $$ LSZ142-101600- Taconite Harbor to Silver Bay Harbor MN- 251 AM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...Northeast wind 5 to 10 knots. Areas of dense fog early in the morning. Patchy dense fog in the late morning and afternoon. Chance of showers and thunderstorms in the morning, then rain showers with thunderstorms likely in the afternoon. Waves 1 to 3 feet. .TONIGHT...Northeast wind 5 knots becoming northwest late in the evening, then becoming southwest with gusts to around 20 knots after midnight. Rain showers with thunderstorms likely in the evening. Patchy fog through the night. Waves 1 to 2 feet. .THURSDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. 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 through the night. Waves 1 foot or less. $$ LSZ143-101600- Silver Bay Harbor to Two Harbors MN- 251 AM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...Northeast wind 5 to 10 knots with gusts to around 20 knots. Areas of dense fog early in the morning. Patchy dense fog late in the morning. Chance of showers and thunderstorms in the morning, then rain showers with thunderstorms likely in the afternoon. Waves 1 to 2 feet. .TONIGHT...Northeast wind 5 knots becoming southwest with gusts to around 20 knots in the late evening and overnight. Rain showers with thunderstorms likely in the evening. Patchy fog through the night. Waves 1 to 2 feet. .THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots in the late morning and afternoon. Chance of rain showers in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the morning. Chance of rain showers through the night. Waves 1 to 2 feet. $$ LSZ144-101600- Two Harbors to Duluth MN- 251 AM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... ...SEVERE THUNDERSTORM WATCH 300 IN EFFECT UNTIL 8 AM CDT THIS MORNING... .TODAY...Northeast 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 early afternoon. Chance of showers and thunderstorms in the morning, then rain showers with thunderstorms likely in the afternoon. Waves 1 to 2 feet. .TONIGHT...Northeast 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 and chance of thunderstorms in the evening. Patchy fog through the night. Waves 1 to 2 feet. .THURSDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Chance of rain showers in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...West wind 10 to 15 knots with gusts to around 20 knots. Chance of rain showers through the night. Waves 1 to 2 feet. $$ LSZ145-101600- Duluth MN to Port Wing WI- 251 AM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... ...SEVERE THUNDERSTORM WATCH 300 IN EFFECT UNTIL 8 AM CDT THIS MORNING... .TODAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Areas of dense fog early in the morning. Patchy dense fog in the late morning and early afternoon. Chance of showers and thunderstorms in the morning, then rain showers with thunderstorms likely in the afternoon. Waves 1 to 2 feet. .TONIGHT...East wind 5 to 10 knots becoming southwest 10 to 15 knots with gusts to around 20 knots in the late evening and overnight. Patchy fog in the evening. Rain showers and chance of thunderstorms in the evening. Waves 1 to 3 feet. .THURSDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Rain showers likely in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots. Chance of rain showers through the night. Patchy fog after midnight. Waves 1 to 3 feet. $$ LSZ146-101600- Port Wing to Sand Island WI- 251 AM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...Northeast wind 5 to 10 knots. Areas of dense fog early in the morning. Patchy dense fog in the late morning and early afternoon. Chance of showers and thunderstorms in the morning, then rain showers with thunderstorms likely in the afternoon. Waves 1 to 2 feet. .TONIGHT...Southeast wind 5 knots becoming southwest 10 to 15 knots with gusts to around 25 knots in the late evening and overnight. Rain showers with thunderstorms likely in the evening. Patchy fog through the night. Waves 1 to 3 feet. .THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the morning then 20 knots in the afternoon. Chance of rain showers 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 through the night. Waves 1 to 3 feet. $$ LSZ147-101600- Sand Island to Bayfield WI- 251 AM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...East wind 5 knots. Patchy dense fog in the morning. Chance of showers and thunderstorms in the morning, then rain showers with thunderstorms likely in the afternoon. Waves 1 to 2 feet. .TONIGHT...Southeast wind 5 knots becoming southwest 10 to 15 knots with gusts to around 25 knots in the late evening and overnight. Rain showers with thunderstorms likely in the evening. Waves 1 to 2 feet. .THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the morning then 20 knots in the afternoon. Chance of rain showers in the afternoon. Waves 1 to 2 feet. .THURSDAY NIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots in the late evening and overnight. Chance of rain showers through the night. Waves 1 to 2 feet. $$ LSZ150-101600- Outer Apostle Islands Beyond 5 NM from Mainland- 251 AM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...East wind 10 to 15 knots with gusts to around 20 knots. Patchy dense fog in the morning. Rain showers likely and slight chance of thunderstorms in the morning, then rain showers with thunderstorms likely in the afternoon. Waves 1 to 2 feet. .TONIGHT...Southeast wind 10 to 15 knots with gusts to around 20 knots becoming southwest with gusts to around 25 knots in the late evening and overnight. Rain showers with thunderstorms likely in the evening. Patchy fog after midnight. Waves 1 to 3 feet. .THURSDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots early in the morning then 20 knots in the afternoon. 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. Waves 1 to 2 feet. $$ LSZ121-101600- Chequamegon Bay-Bayfield to Oak Point WI- 251 AM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...Southeast wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Patchy dense fog early in the morning. Rain showers likely and chance of thunderstorms in the morning, then rain showers with thunderstorms likely in the afternoon. Waves 1 foot or less. .TONIGHT...Southeast wind 5 to 10 knots with gusts to around 20 knots becoming southwest 10 to 15 knots with gusts to around 20 knots in the late evening and overnight. Rain showers with thunderstorms likely in the evening. Waves 1 foot or less. .THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Chance of rain showers in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots in the late evening and overnight. Chance of rain showers through the night. Waves 1 foot or less. $$ LSZ148-101600- Oak Point to Saxon Harbor WI- 251 AM CDT Wed Jun 10 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...Southeast wind 5 to 10 knots becoming east 10 to 15 knots with gusts to around 20 knots in the afternoon. Patchy dense fog in the morning. Chance of rain showers and slight chance of thunderstorms in the morning, then rain showers with thunderstorms likely in the afternoon. Waves 1 to 2 feet. .TONIGHT...West wind 10 to 15 knots with gusts to around 20 knots becoming southwest with gusts to around 20 knots in the late evening and overnight. Rain showers with thunderstorms likely in the evening. Waves 1 to 2 feet. .THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Chance of rain showers in the afternoon. Waves 1 foot or less. .THURSDAY NIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots early in the evening then 20 knots after midnight. Chance of rain showers. Waves 1 to 2 feet. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH