FZUS53 KDLH 092010 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 309 PM CDT Tue Jun 9 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. LSZ140-100400- Grand Portage to Grand Marais MN- 309 PM CDT Tue Jun 9 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT WEDNESDAY... .TONIGHT...Northeast wind 5 to 10 knots. Patchy dense fog early in the evening. Areas of dense fog in the late evening and overnight. Waves 1 to 2 feet. .WEDNESDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Patchy dense fog through the day. Slight chance of rain showers in the morning. Rain showers likely and slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet building to 1 to 3 feet in the late morning and afternoon. .WEDNESDAY NIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming southeast 5 to 10 knots late in the evening, then becoming southwest 10 to 15 knots with gusts to around 20 knots after midnight. Patchy fog through the night. Rain showers likely and chance of thunderstorms in the evening. Slight chance of showers and thunderstorms after midnight. Waves 1 to 3 feet. .THURSDAY...Southwest wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots late in the morning, then increasing to 30 knots early in the afternoon decreasing to 25 knots late in the afternoon. Slight chance of rain showers in the afternoon. Waves 3 to 5 feet. Waves occasionally to 7 feet. A small craft advisory may be needed. $$ LSZ141-100400- Grand Marais to Taconite Harbor MN- 309 PM CDT Tue Jun 9 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT WEDNESDAY... .TONIGHT...Northeast wind 5 to 10 knots. Patchy dense fog early in the evening. Areas of dense fog in the late evening and overnight. Slight chance of rain showers late in the night. Waves 1 to 2 feet. .WEDNESDAY...Northeast wind 10 to 15 knots with gusts to around 20 knots. Patchy dense fog through the day. Chance of rain showers and slight chance of thunderstorms in the morning. Rain showers and thunderstorms likely in the afternoon. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Northeast wind 10 to 15 knots with gusts to around 20 knots becoming east 5 knots late in the evening, then becoming southwest after midnight. Patchy fog in the evening. Rain showers with thunderstorms likely in the evening, then chance of rain showers and slight chance of thunderstorms after midnight. Waves 1 to 3 feet. .THURSDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Chance of rain showers in the afternoon. Waves 1 to 2 feet building to 1 to 3 feet in the afternoon. $$ LSZ142-100400- Taconite Harbor to Silver Bay Harbor MN- 309 PM CDT Tue Jun 9 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT WEDNESDAY... .TONIGHT...Northeast wind 5 to 10 knots. Patchy dense fog early in the evening. Areas of dense fog late in the evening, then widespread dense fog after midnight. Chance of rain showers and slight chance of thunderstorms late in the night. Waves 1 foot or less. .WEDNESDAY...Northeast wind 5 to 10 knots. Gusts up to 20 knots in the late morning and afternoon. Areas of dense fog in the morning. Patchy fog in the afternoon. Slight chance of thunderstorms in the morning. Rain showers likely through the day. Thunderstorms likely in the afternoon. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Northeast wind 5 to 10 knots with gusts to around 20 knots becoming northwest late in the evening, then becoming southwest after midnight. Patchy fog in the evening. Rain showers with thunderstorms likely in the evening, then slight chance of rain showers after midnight. Waves 1 to 3 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. $$ LSZ143-100400- Silver Bay Harbor to Two Harbors MN- 309 PM CDT Tue Jun 9 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT WEDNESDAY... .TONIGHT...Northeast wind 5 to 10 knots. Areas of dense fog early in the evening, then widespread dense fog in the late evening and overnight. Chance of rain showers and slight chance of thunderstorms late in the night. Waves 1 to 2 feet. .WEDNESDAY...Northeast wind 10 to 15 knots. Gusts up to 25 knots. Areas of dense fog in the morning, then patchy dense fog in the afternoon. Chance of rain showers and slight chance of thunderstorms in the morning, then rain showers with thunderstorms likely in the afternoon. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Northeast wind 5 to 10 knots becoming west in the late evening and overnight. Patchy fog in the evening. Showers and thunderstorms likely in the evening. Waves 1 to 2 feet. .THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots in the late morning and afternoon. Chance of rain showers in the afternoon. Waves 1 to 2 feet. $$ LSZ144-100400- Two Harbors to Duluth MN- 309 PM CDT Tue Jun 9 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT WEDNESDAY... .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the evening then 20 knots late in the night. Patchy dense fog early in the evening, then widespread dense fog in the late evening and overnight. Rain showers likely and chance of thunderstorms late in the night. Waves 1 to 2 feet. .WEDNESDAY...Northeast 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. Areas of dense fog in the morning. Patchy dense fog in the afternoon. Rain showers likely in the morning. Chance of thunderstorms through the day. Rain showers in the afternoon. Waves 1 to 3 feet. .WEDNESDAY NIGHT...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 likely and chance of thunderstorms in the evening. 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 and slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet. $$ LSZ145-100400- Duluth MN to Port Wing WI- 309 PM CDT Tue Jun 9 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT WEDNESDAY... .TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the evening. Areas of dense fog in the evening, then widespread dense fog after midnight. Rain showers likely and chance of thunderstorms late in the night. Waves 1 to 2 feet. .WEDNESDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Areas of dense fog in the morning. Patchy dense fog in the afternoon. Rain showers likely in the morning. Chance of thunderstorms through the day. Rain showers in the afternoon. Waves 1 to 3 feet. .WEDNESDAY NIGHT...East wind 10 to 15 knots with gusts to around 20 knots becoming southwest with gusts to around 20 knots in the late evening and overnight. Patchy fog in the evening. Rain showers likely and chance of thunderstorms in the evening. Waves 1 to 3 feet. .THURSDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Chance of rain showers and slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet. $$ LSZ146-100400- Port Wing to Sand Island WI- 309 PM CDT Tue Jun 9 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT WEDNESDAY... .TONIGHT...Northeast wind 5 to 10 knots. Patchy dense fog early in the evening, then areas of dense fog in the late evening and overnight. Chance of rain showers and slight chance of thunderstorms late in the night. Waves 1 to 2 feet. .WEDNESDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in the late morning and afternoon. Patchy dense fog through the day. Chance of rain showers and slight chance of thunderstorms in the morning. Rain showers and thunderstorms likely in the afternoon. Waves 1 to 2 feet. .WEDNESDAY NIGHT...East wind 10 to 15 knots with gusts to around 20 knots becoming southwest with gusts to around 20 knots in the late evening and early morning, then easing to 10 knots with gusts to around 20 knots early in the morning. Patchy fog in the evening. Showers and 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. $$ LSZ147-100400- Sand Island to Bayfield WI- 309 PM CDT Tue Jun 9 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT WEDNESDAY... .TONIGHT...Northeast wind 5 knots. Patchy dense fog early in the evening, then areas of dense fog in the late evening and overnight. Chance of rain showers and slight chance of thunderstorms late in the night. Waves 1 foot or less. .WEDNESDAY...East wind 10 to 15 knots with gusts to around 20 knots. Patchy dense fog in the morning. Chance of rain showers and slight chance of thunderstorms in the morning, then rain showers likely and chance of thunderstorms in the afternoon. Waves 1 to 2 feet. .WEDNESDAY NIGHT...North wind 5 to 10 knots with gusts to around 20 knots becoming southwest with gusts to around 20 knots in the late evening and overnight. Patchy fog in the evening. Rain showers and chance of thunderstorms in the evening. Waves 1 to 2 feet. .THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the morning then 20 knots late in the afternoon. Chance of rain showers in the afternoon. Waves 1 to 2 feet. $$ LSZ150-100400- Outer Apostle Islands Beyond 5 NM from Mainland- 309 PM CDT Tue Jun 9 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT WEDNESDAY... .TONIGHT...Northeast wind 5 to 10 knots. Areas of dense fog through the night. Slight chance of showers and thunderstorms late in the night. Waves 1 foot or less. .WEDNESDAY...East wind 10 to 15 knots. Gusts up to 20 knots late in the afternoon. Patchy dense fog through the day. Chance of rain showers and slight chance of thunderstorms in the morning. Rain showers likely and chance of thunderstorms in the afternoon. Waves 1 to 3 feet. .WEDNESDAY NIGHT...North wind 10 to 15 knots with gusts to around 25 knots becoming southwest 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 3 feet subsiding to 1 to 2 feet in the late evening and overnight. .THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the morning then 20 knots late in the afternoon. Chance of rain showers in the afternoon. Waves 1 to 2 feet. $$ LSZ121-100400- Chequamegon Bay-Bayfield to Oak Point WI- 309 PM CDT Tue Jun 9 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT WEDNESDAY... .TONIGHT...Northeast wind 5 knots in the evening becoming variable 10 knots or less, then becoming northeast 5 knots late in the night. Patchy dense fog early in the evening, then areas of dense fog in the late evening and overnight. Chance of rain showers and slight chance of thunderstorms late in the night. Waves 1 foot or less. .WEDNESDAY...East wind 5 knots becoming southeast with gusts to around 20 knots in the late morning and afternoon. Patchy dense fog in the morning. Rain showers likely and chance of thunderstorms through the day. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Southwest wind 5 to 10 knots. Gusts up to 20 knots in the evening. Rain showers likely and chance of thunderstorms in the evening. Waves 1 to 2 feet. .THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Chance of rain showers in the afternoon. Waves 1 to 2 feet. $$ LSZ148-100400- Oak Point to Saxon Harbor WI- 309 PM CDT Tue Jun 9 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT WEDNESDAY... .TONIGHT...Northeast wind 5 knots. Patchy dense fog early in the evening, then areas of dense fog in the late evening and early morning. Patchy dense fog late in the night. Slight chance of showers and thunderstorms late in the night. Waves 1 foot or less. .WEDNESDAY...Southeast wind 5 to 10 knots. Gusts up to 20 knots in the afternoon. Patchy dense fog in the morning. Slight chance of thunderstorms in the morning. Rain showers likely through the day. Chance of thunderstorms in the afternoon. Waves 1 to 2 feet. .WEDNESDAY NIGHT...West wind 15 to 20 knots with gusts to around 30 knots becoming southwest 5 to 10 knots in the late evening and overnight. Rain showers and chance of thunderstorms in the evening. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late evening and overnight. .THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the afternoon. Chance of rain showers in the afternoon. Waves 1 to 2 feet. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH