442
FZUS53 KDLH 151000
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
500 AM CDT FRI MAY 15 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.
LSZ140-151600-
GRAND PORTAGE TO GRAND MARAIS MN-
500 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
TODAY
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO 30 KNOTS
EARLY IN THE MORNING THEN 30 KNOTS LATE IN THE AFTERNOON. MOSTLY
SUNNY. WAVES 4 TO 7 FEET. WAVES OCCASIONALLY TO 9 FEET.
TONIGHT
SOUTHWEST WIND 20 TO 25 KNOTS WITH GUSTS TO AROUND
30 KNOTS BECOMING WEST 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS IN THE LATE EVENING AND OVERNIGHT. MOSTLY CLEAR. WAVES
4 TO 7 FEET SUBSIDING TO 1 TO 3 FEET. WAVES OCCASIONALLY TO
9 FEET.
SATURDAY
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON,
THEN DECREASING TO 20 KNOTS LATE IN THE AFTERNOON. SUNNY. WAVES
1 TO 3 FEET.
SATURDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST
IN THE LATE EVENING AND OVERNIGHT. MOSTLY CLEAR. WAVES 1 TO
2 FEET.
LSZ141-151600-
GRAND MARAIS TO TACONITE HARBOR MN-
500 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
TODAY
SOUTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS
BECOMING SOUTHWEST 15 TO 20 KNOTS WITH GUSTS TO AROUND 30 KNOTS
IN THE AFTERNOON. MOSTLY SUNNY. WAVES 3 TO 5 FEET. WAVES
OCCASIONALLY TO 7 FEET.
TONIGHT
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
EASING TO 5 TO 10 KNOTS EARLY IN THE MORNING. MOSTLY CLEAR. WAVES
3 TO 5 FEET SUBSIDING TO 1 TO 2 FEET AFTER MIDNIGHT.
SATURDAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
SATURDAY NIGHT
NORTHWEST WIND 5 KNOTS BECOMING NORTHEAST AFTER
MIDNIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
LSZ142-151600-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
500 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
TODAY
SOUTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
30 KNOTS. SUNNY. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET IN THE
AFTERNOON.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING WEST 5 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR.
WAVES 1 TO 3 FEET.
SATURDAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN THE
LATE MORNING AND AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
SATURDAY NIGHT
NORTHWEST WIND 5 KNOTS BECOMING NORTHEAST WITH
GUSTS TO AROUND 20 KNOTS EARLY IN THE MORNING. MOSTLY CLEAR.
WAVES 1 FOOT OR LESS.
LSZ143-151600-
SILVER BAY HARBOR TO TWO HARBORS MN-
500 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 30 KNOTS. SUNNY. WAVES 1 TO 3 FEET.
TONIGHT
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
EASING TO 5 KNOTS EARLY IN THE MORNING. MOSTLY CLEAR. WAVES 1 TO
3 FEET.
SATURDAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS EARLY
IN THE AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
SATURDAY NIGHT
NORTHWEST WIND 5 KNOTS BECOMING NORTHEAST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE LATE EVENING AND
OVERNIGHT. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
LSZ144-151600-
TWO HARBORS TO DULUTH MN-
500 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 30 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO
3 FEET.
TONIGHT
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS EARLY
IN THE EVENING. MOSTLY CLEAR. WAVES 1 TO 3 FEET.
SATURDAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
SATURDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST
IN THE LATE EVENING AND EARLY MORNING, THEN RISING TO 15 TO
20 KNOTS WITH GUSTS TO AROUND 25 KNOTS EARLY IN THE MORNING.
PARTLY CLOUDY. WAVES 1 TO 3 FEET.
LSZ145-151600-
DULUTH MN TO PORT WING WI-
500 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS LATE IN THE MORNING, THEN INCREASING TO
30 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO 3 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
MOSTLY CLEAR. WAVES 1 TO 3 FEET SUBSIDING TO 1 TO 2 FEET IN THE
LATE EVENING AND OVERNIGHT.
SATURDAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN THE
LATE MORNING AND AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
SATURDAY NIGHT
NORTHWEST WIND 5 KNOTS BECOMING NORTHEAST LATE
IN THE EVENING, THEN RISING TO 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR
LESS BUILDING TO 1 TO 3 FEET EARLY IN THE MORNING.
LSZ146-151600-
PORT WING TO SAND ISLAND WI-
500 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS LATE IN THE MORNING, THEN INCREASING TO
25 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO 3 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 30 KNOTS.
MOSTLY CLEAR. WAVES 1 TO 3 FEET SUBSIDING TO 1 TO 2 FEET IN THE
LATE EVENING AND OVERNIGHT.
SATURDAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN THE
LATE MORNING AND EARLY AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
SATURDAY NIGHT
WEST WIND 5 KNOTS BECOMING NORTHEAST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE LATE EVENING AND
OVERNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
LSZ147-151600-
SAND ISLAND TO BAYFIELD WI-
500 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS LATE IN THE MORNING, THEN INCREASING TO
25 KNOTS EARLY IN THE AFTERNOON INCREASING TO 30 KNOTS LATE IN
THE AFTERNOON. SUNNY. WAVES 1 TO 3 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 30 KNOTS.
MOSTLY CLEAR. WAVES 1 TO 3 FEET.
SATURDAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN THE
LATE MORNING AND AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
SATURDAY NIGHT
WEST WIND 5 KNOTS BECOMING EAST IN THE LATE
EVENING AND OVERNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
LSZ150-151600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
500 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
EARLY IN THE MORNING THEN 25 KNOTS EARLY IN THE AFTERNOON, THEN
INCREASING TO 30 KNOTS LATE IN THE AFTERNOON. SUNNY. WAVES 2 TO
4 FEET SUBSIDING TO 1 TO 3 FEET EARLY IN THE AFTERNOON, THEN
BUILDING TO 2 TO 4 FEET LATE IN THE AFTERNOON.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 30 KNOTS.
MOSTLY CLEAR. WAVES 1 TO 3 FEET.
SATURDAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS UNTIL
LATE AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
SATURDAY NIGHT
SOUTHWEST WIND 5 KNOTS BECOMING EAST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE LATE EVENING AND
OVERNIGHT. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
LSZ121-151600-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
500 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS LATE IN THE MORNING, THEN INCREASING TO
30 KNOTS EARLY IN THE AFTERNOON DECREASING TO 25 KNOTS LATE IN
THE AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
EARLY IN THE EVENING. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
SATURDAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
SATURDAY NIGHT
NORTH WIND 5 KNOTS BECOMING NORTHEAST IN THE
LATE EVENING AND OVERNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
LSZ148-151600-
OAK POINT TO SAXON HARBOR WI-
500 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 30 KNOTS
DECREASING TO 25 KNOTS IN THE LATE MORNING AND AFTERNOON. SUNNY.
WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET IN THE LATE MORNING
AND AFTERNOON.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
MOSTLY CLEAR. WAVES 1 TO 2 FEET.
SATURDAY
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS
BECOMING NORTHWEST LATE IN THE AFTERNOON. SUNNY. WAVES 1 FOOT OR
LESS.
SATURDAY NIGHT
NORTHEAST WIND 5 KNOTS RISING TO 5 TO 10 KNOTS
IN THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR
LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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