FZUS53 KDLH 262047

NSHDLH



Nearshore Marine Forecast

National Weather Service Duluth MN

347 PM CDT Thu Jun 26 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.



LSZ140-141-270415-

Grand Portage to Grand Marais MN-

Grand Marais to Taconite Harbor MN-

347 PM CDT Thu Jun 26 2025



.TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 20 knots

increasing to 25 knots after midnight. Chance of rain showers

early in the evening, then rain showers likely in the late

evening and overnight. Patchy fog after midnight. Waves 1 to

3 feet building to 2 to 4 feet in the late evening and overnight.

.FRIDAY...Northeast wind 15 to 20 knots becoming south 5 to

10 knots late in the afternoon. Patchy fog in the morning. Chance

of rain showers in the morning. Waves 2 to 4 feet subsiding to

1 to 3 feet in the afternoon. 

.FRIDAY NIGHT...West wind 5 to 10 knots. Partly cloudy. Waves

1 to 2 feet. 

.SATURDAY...South wind 5 to 10 knots becoming southeast in the

afternoon. Chance of rain showers in the afternoon. Waves 1 foot

or less. 



$$



LSZ142-143-270415-

Taconite Harbor to Silver Bay Harbor MN-

Silver Bay Harbor to Two Harbors MN-

347 PM CDT Thu Jun 26 2025



...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING...



.TONIGHT...Northeast wind 15 to 20 knots with gusts to around

25 knots. Rain showers likely until early morning. Chance of rain

showers late in the night. Patchy fog after midnight. Waves 3 to

5 feet. Waves occasionally to 7 feet. 

.FRIDAY...Northeast wind 10 to 15 knots with gusts to around

20 knots becoming east 5 knots early in the afternoon, then

becoming south late in the afternoon. Patchy fog in the morning.

Slight chance of rain showers in the morning. Waves 3 to 5 feet

subsiding to 1 to 3 feet late in the afternoon. 

.FRIDAY NIGHT...Southwest wind 5 to 10 knots. Partly cloudy.

Waves 1 to 2 feet. 

.SATURDAY...Southeast wind 5 knots becoming east in the late

morning and afternoon. Slight chance of rain showers in the

morning, then chance of rain showers and slight chance of

thunderstorms in the afternoon. Waves 1 foot or less. 



$$



LSZ144-145-270415-

Two Harbors to Duluth MN-Duluth MN to Port Wing WI-

347 PM CDT Thu Jun 26 2025



...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING...



.TONIGHT...Northeast wind 15 to 20 knots with gusts to around

25 knots. Patchy fog through the night. Rain showers in the

evening. Rain showers likely after midnight, then chance of rain

showers late in the night. Waves 4 to 6 feet. Waves occasionally

to 7 feet. 

.FRIDAY...Northeast wind 10 to 15 knots with gusts to around

20 knots becoming east 5 knots late in the afternoon. Patchy fog

in the morning. Waves 3 to 5 feet subsiding to 1 to 3 feet late

in the afternoon. 

.FRIDAY NIGHT...Southeast wind 5 knots becoming southwest after

midnight. Partly cloudy. Waves 1 to 2 feet. 

.SATURDAY...Southeast wind 5 to 10 knots becoming east in the

afternoon. Chance of rain showers through the day. Chance of

thunderstorms in the afternoon. Waves 1 foot or less. 



$$



LSZ146-270415-

Port Wing to Sand Island WI-

347 PM CDT Thu Jun 26 2025



...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING...



.TONIGHT...Northeast wind 15 to 20 knots. Patchy fog through the

night. Rain showers in the evening. Rain showers likely after

midnight, then chance of rain showers late in the night. Waves

3 to 5 feet. Waves occasionally to 7 feet. 

.FRIDAY...North wind 10 to 15 knots with gusts to around 20 knots

becoming west 5 knots late in the afternoon. Patchy fog in the

morning. Slight chance of rain showers in the morning. Waves 3 to

5 feet subsiding to 1 to 3 feet late in the afternoon. Waves

occasionally to 7 feet. 

.FRIDAY NIGHT...Southwest wind 5 knots. Partly cloudy. Waves 1 to

2 feet. 

.SATURDAY...Southeast wind 5 knots becoming northeast in the

afternoon. Slight chance of rain showers in the morning, then

chance of showers and thunderstorms in the afternoon. Waves

1 foot or less. 



$$



LSZ147-270415-

Sand Island to Bayfield WI-

347 PM CDT Thu Jun 26 2025



...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING...



.TONIGHT...Northeast wind 15 to 20 knots. Rain showers until

early morning. Rain showers likely late in the night. Patchy fog

in the late evening and overnight. Waves 3 to 5 feet. Waves

occasionally to 7 feet. 

.FRIDAY...North wind 10 to 15 knots with gusts to around 20 knots

becoming northwest 5 to 10 knots early in the afternoon, then

becoming west late in the afternoon. Patchy fog in the morning.

Slight chance of rain showers in the morning. Waves 3 to 5 feet

subsiding to 1 to 3 feet late in the afternoon. Waves

occasionally to 7 feet. 

.FRIDAY NIGHT...Southwest wind 5 knots. Partly cloudy. Waves 1 to

2 feet. 

.SATURDAY...Southeast wind 5 knots becoming east in the

afternoon. Slight chance of rain showers in the morning, then

chance of rain showers and slight chance of thunderstorms in the

afternoon. Waves 1 foot or less. 



$$



LSZ150-270415-

Outer Apostle Islands Beyond 5 NM from Mainland-

347 PM CDT Thu Jun 26 2025



...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING...



.TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 25 knots

after midnight. Rain showers until early morning. Rain showers

likely late in the night. Patchy fog in the late evening and

overnight. Waves 4 to 6 feet. Waves occasionally to 8 feet. 

.FRIDAY...Northeast wind 15 to 20 knots with gusts to around

25 knots becoming north 5 to 10 knots early in the afternoon,

then becoming west late in the afternoon. Patchy fog in the

morning. Slight chance of rain showers in the morning. Waves 4 to

6 feet subsiding to 1 to 3 feet late in the afternoon. Waves

occasionally to 8 feet. 

.FRIDAY NIGHT...Southwest wind 5 knots. Partly cloudy. Waves 1 to

3 feet. 

.SATURDAY...Southeast wind 5 knots becoming east in the

afternoon. Chance of rain showers and slight chance of

thunderstorms in the afternoon. Waves 1 foot or less. 



$$



LSZ121-270415-

Chequamegon Bay-Bayfield to Oak Point WI-

347 PM CDT Thu Jun 26 2025



.TONIGHT...Northeast wind 10 to 15 knots with gusts to around

20 knots. Patchy fog through the night. Rain showers until early

morning. Slight chance of thunderstorms in the late evening and

early morning, then chance of rain showers late in the night.

Waves 1 to 2 feet. 

.FRIDAY...North wind 5 to 10 knots becoming northeast late in the

afternoon. Patchy fog in the morning. Slight chance of rain

showers in the morning. Waves 1 to 2 feet. 

.FRIDAY NIGHT...Southeast wind 5 knots becoming southwest in the

late evening and overnight. Partly cloudy. Waves 1 foot or less. 

.SATURDAY...South wind 5 knots becoming east in the afternoon.

Chance of showers and thunderstorms in the afternoon. Waves

1 foot or less. 



$$



LSZ148-270415-

Oak Point to Saxon Harbor WI-

347 PM CDT Thu Jun 26 2025



...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING...



.TONIGHT...Northeast wind 10 to 15 knots with gusts to around

20 knots. Rain showers until early morning. Slight chance of

thunderstorms in the late evening and early morning. Rain showers

likely late in the night. Patchy fog in the late evening and

overnight. Waves 3 to 5 feet. 

.FRIDAY...North wind 10 to 15 knots easing to 5 to 10 knots in

the late morning and afternoon. Patchy fog in the morning. Slight

chance of rain showers in the morning. Waves 2 to 4 feet. 

.FRIDAY NIGHT...South wind 5 knots becoming southwest after

midnight. Partly cloudy. Waves 1 to 3 feet. 

.SATURDAY...South wind 5 knots becoming east in the afternoon.

Chance of rain showers and slight chance of thunderstorms in the

afternoon. Waves 1 foot or less. 



$$



Graphical marine forecasts are available online at: 

weather.gov/greatlakes 



Huyck

