421
FZUS53 KDLH 121048
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
548 AM CDT FRI JUN 12 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.
LSZ140-121600-
GRAND PORTAGE TO GRAND MARAIS MN-
548 AM CDT FRI JUN 12 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH THIS EVENING...
TODAY
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 EARLY IN THE
AFTERNOON. WAVES 4 TO 6 FEET. WAVES OCCASIONALLY TO 8 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING THEN 20 KNOTS EARLY IN THE MORNING. PARTLY
CLOUDY. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET AFTER
MIDNIGHT. WAVES OCCASIONALLY TO 7 FEET.
SATURDAY
WEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. PARTLY SUNNY. WAVES 3 TO 5 FEET. A SMALL CRAFT ADVISORY
MAY BE NEEDED.
SATURDAY NIGHT
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. MOSTLY CLOUDY. WAVES 1 TO 3 FEET SUBSIDING
TO 1 TO 2 FEET IN THE LATE EVENING AND OVERNIGHT.
LSZ141-121600-
GRAND MARAIS TO TACONITE HARBOR MN-
548 AM CDT FRI JUN 12 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH THIS EVENING...
TODAY
SOUTHWEST 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 LATE MORNING AND EARLY AFTERNOON.
WAVES 1 TO 2 FEET BUILDING TO 2 TO 4 FEET IN THE LATE MORNING AND
AFTERNOON.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE EVENING. PARTLY CLOUDY. WAVES 1 TO 3 FEET SUBSIDING TO 1 TO
2 FEET IN THE LATE EVENING AND OVERNIGHT.
SATURDAY
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS EARLY IN THE AFTERNOON, THEN DECREASING TO
20 KNOTS LATE IN THE AFTERNOON. PARTLY SUNNY. WAVES 1 TO 3 FEET.
SATURDAY NIGHT
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING THEN 20 KNOTS EARLY IN THE MORNING. MOSTLY
CLOUDY. WAVES 1 TO 2 FEET.
LSZ142-121600-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
548 AM CDT FRI JUN 12 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH THIS EVENING...
TODAY
SOUTHWEST 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 EARLY IN THE AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
SATURDAY
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS. PARTLY SUNNY. WAVES 1 FOOT OR LESS.
SATURDAY NIGHT
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING THEN 20 KNOTS EARLY IN THE MORNING. MOSTLY
CLOUDY. WAVES 1 FOOT OR LESS.
LSZ143-121600-
SILVER BAY HARBOR TO TWO HARBORS MN-
548 AM CDT FRI JUN 12 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH THIS EVENING...
TODAY
SOUTHWEST 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.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
EARLY IN THE EVENING THEN 20 KNOTS EARLY IN THE MORNING. PARTLY
CLOUDY. WAVES 1 TO 2 FEET.
SATURDAY
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
SATURDAY NIGHT
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
LSZ144-121600-
TWO HARBORS TO DULUTH MN-
548 AM CDT FRI JUN 12 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH THIS EVENING...
TODAY
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.
TONIGHT
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS EARLY
IN THE EVENING THEN 20 KNOTS EARLY IN THE MORNING. PARTLY CLOUDY.
WAVES 1 TO 2 FEET.
SATURDAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
SATURDAY NIGHT
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. WAVES 1 TO 2 FEET.
LSZ145-121600-
DULUTH MN TO PORT WING WI-
548 AM CDT FRI JUN 12 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
TODAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS.
MOSTLY SUNNY. WAVES 1 TO 2 FEET BUILDING TO 2 TO 4 FEET IN THE
LATE MORNING AND AFTERNOON.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
EARLY IN THE EVENING THEN 20 KNOTS EARLY IN THE MORNING. PARTLY
CLOUDY. WAVES 1 TO 3 FEET SUBSIDING TO 1 TO 2 FEET IN THE LATE
EVENING AND OVERNIGHT.
SATURDAY
WEST WIND 15 TO 20 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE LATE MORNING AND AFTERNOON. MOSTLY
SUNNY. WAVES 1 TO 2 FEET.
SATURDAY NIGHT
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. WAVES 1 TO 2 FEET.
LSZ146-121600-
PORT WING TO SAND ISLAND WI-
548 AM CDT FRI JUN 12 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
TODAY
SOUTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
30 KNOTS BECOMING WEST 5 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES 2 TO 4 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING THEN 20 KNOTS EARLY IN THE MORNING. PARTLY
CLOUDY. WAVES 1 TO 3 FEET SUBSIDING TO 1 TO 2 FEET IN THE LATE
EVENING AND OVERNIGHT.
SATURDAY
SOUTHWEST WIND 10 KNOTS BECOMING WEST IN THE LATE
MORNING AND EARLY AFTERNOON, THEN EASING TO 10 KNOTS LATE IN THE
AFTERNOON. GUSTS UP TO 20 KNOTS. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
SATURDAY NIGHT
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
LSZ147-121600-
SAND ISLAND TO BAYFIELD WI-
548 AM CDT FRI JUN 12 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
TODAY
WEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND 30 KNOTS
EASING TO 5 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS LATE IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 2 TO 4 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS IN THE LATE EVENING AND OVERNIGHT. PARTLY
CLOUDY. WAVES 1 TO 3 FEET SUBSIDING TO 1 TO 2 FEET IN THE LATE
EVENING AND OVERNIGHT.
SATURDAY
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
SATURDAY NIGHT
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING THEN 20 KNOTS EARLY IN THE MORNING. PARTLY
CLOUDY IN THE EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 TO
2 FEET.
LSZ150-121600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
548 AM CDT FRI JUN 12 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
TODAY
SOUTHWEST WIND 15 TO 20 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. MOSTLY SUNNY.
WAVES 2 TO 4 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS IN THE LATE EVENING AND OVERNIGHT. PARTLY
CLOUDY. WAVES 1 TO 3 FEET SUBSIDING TO 1 TO 2 FEET IN THE LATE
EVENING AND OVERNIGHT.
SATURDAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. MOSTLY SUNNY. WAVES 1 TO 3 FEET.
SATURDAY NIGHT
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. WAVES 1 TO 2 FEET.
LSZ121-121600-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
548 AM CDT FRI JUN 12 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
TODAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS.
SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
BECOMING SOUTHWEST 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN
THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR
LESS.
SATURDAY
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
MOSTLY SUNNY. WAVES 1 TO 2 FEET.
SATURDAY NIGHT
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING THEN 20 KNOTS EARLY IN THE MORNING. PARTLY
CLOUDY IN THE EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT
OR LESS.
LSZ148-121600-
OAK POINT TO SAXON HARBOR WI-
548 AM CDT FRI JUN 12 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
TODAY
WEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS
EASING TO 5 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS LATE IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 3 FEET.
TONIGHT
WEST 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. SLIGHT CHANCE OF RAIN SHOWERS IN THE
EVENING. WAVES 1 TO 2 FEET.
SATURDAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
SATURDAY NIGHT
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING THEN 20 KNOTS EARLY IN THE MORNING. PARTLY
CLOUDY IN THE EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 TO
2 FEET.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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