National Weather Service Marine Forecast FZUS53 KDLH
FZUS53 KDLH 110502
NSHDLH
Nearshore Marine Forecast
National Weather Service Duluth MN
1202 AM CDT Tue Aug 11 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.
LSZ140-111600
Grand Portage to Grand Marais MN
1202 AM CDT Tue Aug 11 2026
TODAY
Northwest wind 5 knots becoming south in the afternoon.
Patchy fog early in the morning. Chance of sprinkles in the
morning. Waves 1 foot or less.
TONIGHT
South wind 5 to 10 knots becoming northwest early in
the morning. Mostly cloudy. Waves 1 foot or less.
WEDNESDAY
North wind 5 knots becoming northeast late in the
morning, then becoming south in the afternoon. Slight chance of
rain showers in the afternoon. Waves 1 foot or less.
WEDNESDAY NIGHT
West wind 5 knots becoming northwest in the
late evening and overnight. Mostly cloudy. Waves 1 foot or less.
LSZ141-111600
Grand Marais to Taconite Harbor MN
1202 AM CDT Tue Aug 11 2026
TODAY
Northwest wind 5 knots becoming west late in the
morning, then becoming south in the afternoon. Patchy fog early
in the morning. Slight chance of rain showers until late
afternoon. Waves 1 foot or less.
TONIGHT
Variable winds 10 knots or less. Mostly cloudy. Waves
1 foot or less.
WEDNESDAY
North wind 5 knots becoming southwest late in the
morning, then becoming southwest 5 knots in the afternoon. Patchy
fog in the morning. Slight chance of rain showers in the
afternoon. Waves 1 foot or less.
WEDNESDAY NIGHT
Variable winds 10 knots or less becoming
northwest 5 knots after midnight. Mostly cloudy. Waves 1 foot or
less.
LSZ142-111600
Taconite Harbor to Silver Bay Harbor MN
1202 AM CDT Tue Aug 11 2026
TODAY
Variable winds 10 knots or less becoming southeast
5 knots early in the afternoon, then becoming variable 10 knots
or less late in the afternoon. Patchy fog early in the morning.
Slight chance of rain showers until late afternoon. Waves 1 foot
or less.
TONIGHT
Variable winds 10 knots or less. Partly cloudy. Waves
1 foot or less.
WEDNESDAY
Variable winds 10 knots or less becoming southwest
5 knots late in the morning, then becoming variable 10 knots or
less in the afternoon. Slight chance of rain showers in the
afternoon. Waves 1 foot or less.
WEDNESDAY NIGHT
Variable winds 10 knots or less becoming north
5 knots early in the morning. Mostly cloudy. Waves 1 foot or
less.
LSZ143-111600
Silver Bay Harbor to Two Harbors MN
1202 AM CDT Tue Aug 11 2026
TODAY
Variable winds 10 knots or less becoming northeast
5 knots late in the morning, then becoming east in the afternoon.
Patchy fog early in the morning. Chance of rain showers early in
the morning, then chance of sprinkles late in the morning. Waves
1 foot or less.
TONIGHT
Northeast wind 5 knots early in the evening becoming
variable 10 knots or less. Partly cloudy in the evening then
becoming mostly cloudy. Waves 1 foot or less.
WEDNESDAY
Variable winds 10 knots or less becoming south
5 knots late in the morning, then becoming variable 10 knots or
less in the afternoon. Slight chance of rain showers in the
afternoon. Waves 1 foot or less.
WEDNESDAY NIGHT
Northeast wind 5 knots early in the evening
becoming variable 10 knots or less, then becoming north 5 knots
after midnight. Mostly cloudy. Waves 1 foot or less.
LSZ144-111600
Two Harbors to Duluth MN
1202 AM CDT Tue Aug 11 2026
TODAY
Northeast wind 5 knots becoming east in the afternoon.
Chance of rain showers early in the morning. Waves 1 foot or
less.
TONIGHT
Northeast wind 5 knots. Partly cloudy. Waves 1 foot or
less.
WEDNESDAY
North wind 5 knots becoming east in the late morning
and early afternoon, then becoming east 5 knots late in the
afternoon. Slight chance of rain showers through the day. Waves
1 foot or less.
WEDNESDAY NIGHT
Northeast wind 5 knots becoming north after
midnight. Partly cloudy in the evening then becoming mostly
cloudy. Waves 1 foot or less.
LSZ145-111600
Duluth MN to Port Wing WI
1202 AM CDT Tue Aug 11 2026
TODAY
Northeast wind 5 knots. Slight chance of rain showers
early in the morning. Waves 1 foot or less.
TONIGHT
Northeast wind 5 knots. Partly cloudy. Waves 1 foot or
less.
WEDNESDAY
Northeast wind 5 knots. Partly sunny. Waves 1 foot
or less.
WEDNESDAY NIGHT
Northeast wind 5 knots becoming north early in
the morning. Mostly cloudy. Waves 1 foot or less.
LSZ146-111600
Port Wing to Sand Island WI
1202 AM CDT Tue Aug 11 2026
TODAY
Variable winds 10 knots or less becoming northeast
5 knots in the afternoon. Chance of sprinkles early in the
morning. Waves 1 foot or less.
TONIGHT
Northeast wind 5 knots early in the evening becoming
variable 10 knots or less, then becoming north 5 knots after
midnight becoming variable 10 knots or less. Partly cloudy. Waves
1 foot or less.
WEDNESDAY
Variable winds 10 knots or less becoming northwest
5 knots late in the morning, then becoming variable 10 knots or
less in the afternoon. Mostly sunny. Waves 1 foot or less.
WEDNESDAY NIGHT
Northeast wind 5 knots early in the evening
becoming variable 10 knots or less, then becoming north 5 knots
after midnight. Mostly cloudy. Waves 1 foot or less.
LSZ147-111600
Sand Island to Bayfield WI
1202 AM CDT Tue Aug 11 2026
TODAY
Variable winds 10 knots or less becoming northeast
5 knots in the afternoon. Chance of showers early in the morning,
then chance of sprinkles late in the morning. Waves 1 foot or
less.
TONIGHT
East wind 5 knots in the evening becoming variable
10 knots or less. Partly cloudy. Waves 1 foot or less.
WEDNESDAY
Variable winds 10 knots or less becoming north
5 knots late in the morning, then becoming northeast early in the
afternoon becoming east late in the afternoon. Mostly sunny.
Waves 1 foot or less.
WEDNESDAY NIGHT
East wind 5 knots early in the evening
becoming variable 10 knots or less, then becoming north 5 knots
after midnight. Partly cloudy in the evening then becoming mostly
cloudy. Waves 1 foot or less.
LSZ150-111600
Outer Apostle Islands Beyond 5 NM from Mainland
1202 AM CDT Tue Aug 11 2026
TODAY
North wind 5 knots early in the morning becoming
variable 10 knots or less, then becoming northeast 5 knots in the
afternoon. Patchy fog early in the morning. Chance of showers
early in the morning. Waves 1 foot or less.
TONIGHT
Southeast wind 5 knots becoming west after midnight.
Partly cloudy. Waves 1 foot or less.
WEDNESDAY
Northwest wind 5 knots becoming east late in the
afternoon. Patchy fog in the morning. Waves 1 foot or less.
WEDNESDAY NIGHT
East wind 5 knots becoming north after
midnight. Mostly cloudy. Waves 1 foot or less.
LSZ121-111600
Chequamegon Bay-Bayfield to Oak Point WI
1202 AM CDT Tue Aug 11 2026
TODAY
Variable winds 10 knots or less becoming northeast
5 knots in the late morning and afternoon. Slight chance of
showers early in the morning, then chance of sprinkles late in
the morning. Waves 1 foot or less.
TONIGHT
Northeast wind 5 knots early in the evening becoming
variable 10 knots or less, then becoming west 5 knots after
midnight becoming southwest. Partly cloudy in the evening then
becoming mostly cloudy. Waves 1 foot or less.
WEDNESDAY
Variable winds 10 knots or less becoming north
5 knots late in the morning, then becoming northeast in the
afternoon. Patchy fog in the morning. . Waves 1 foot or less.
WEDNESDAY NIGHT
Northeast wind 5 knots early in the evening
becoming variable 10 knots or less. Mostly cloudy. Waves 1 foot
or less.
LSZ148-111600
Oak Point to Saxon Harbor WI
1202 AM CDT Tue Aug 11 2026
TODAY
Variable winds 10 knots or less becoming northeast
5 knots in the afternoon. Patchy fog early in the morning. Chance
of showers early in the morning. Waves 1 foot or less.
TONIGHT
East wind 5 knots in the evening becoming variable
10 knots or less, then becoming south 5 knots early in the
morning. Partly cloudy. Waves 1 foot or less.
WEDNESDAY
Variable winds 10 knots or less becoming northwest
5 knots late in the morning, then becoming northeast in the
afternoon. Patchy fog in the morning. Waves 1 foot or less.
WEDNESDAY NIGHT
Northeast wind 5 knots in the evening becoming
variable 10 knots or less, then becoming west 5 knots early in
the morning. Mostly cloudy. Waves 1 foot or less.
Graphical marine forecasts are available online at: weather.gov/greatlakes
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