518
FZUS53 KDLH 151600
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
1100 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.
LSZ140-152200-
GRAND PORTAGE TO GRAND MARAIS MN-
1100 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
25 KNOTS INCREASING TO 30 KNOTS LATE. SUNNY. WAVES 4 TO 7 FEET.
WAVES OCCASIONALLY TO 9 FEET.
TONIGHT
WEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS. 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.
LSZ141-152200-
GRAND MARAIS TO TACONITE HARBOR MN-
1100 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TODAY
SOUTHWEST WIND 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS RISING TO 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS
IN THE AFTERNOON. SUNNY. WAVES 1 TO 3 FEET BUILDING TO 3 TO
5 FEET IN THE AFTERNOON. WAVES OCCASIONALLY TO 7 FEET.
TONIGHT
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS. MOSTLY
CLEAR. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 2 FEET AFTER MIDNIGHT.
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 2 FEET.
SATURDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST
EARLY IN THE MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
LSZ142-152200-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
1100 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TODAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS IN THE AFTERNOON. SUNNY. WAVES
1 TO 2 FEET BUILDING TO 1 TO 3 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 WITH GUSTS TO AROUND
20 KNOTS. 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.
LSZ143-152200-
SILVER BAY HARBOR TO TWO HARBORS MN-
1100 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS IN THE AFTERNOON. 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 IN THE
LATE MORNING AND 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.
LSZ144-152200-
TWO HARBORS TO DULUTH MN-
1100 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
25 KNOTS INCREASING TO 30 KNOTS IN THE AFTERNOON. SUNNY. WAVES
1 TO 3 FEET.
TONIGHT
SOUTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING WEST 5 TO 10 KNOTS AFTER MIDNIGHT. MOSTLY
CLEAR. WAVES 1 TO 3 FEET.
SATURDAY
WEST WIND 10 TO 15 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 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 FOOT OR LESS BUILDING TO 1 TO 3 FEET EARLY IN THE
MORNING.
LSZ145-152200-
DULUTH MN TO PORT WING WI-
1100 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
25 KNOTS INCREASING TO 30 KNOTS IN THE AFTERNOON. SUNNY. WAVES
1 TO 3 FEET.
TONIGHT
SOUTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS EASING TO 5 TO 10 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR.
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 IN THE
LATE MORNING AND 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 FOOT OR LESS BUILDING TO 1 TO 3 FEET EARLY
IN THE MORNING.
LSZ146-152200-
PORT WING TO SAND ISLAND WI-
1100 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 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.
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
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.
LSZ147-152200-
SAND ISLAND TO BAYFIELD WI-
1100 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TODAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 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.
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 IN THE LATE EVENING AND OVERNIGHT.
PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
LSZ150-152200-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
1100 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 30 KNOTS. SUNNY. WAVES 1 TO 3 FEET
BUILDING TO 2 TO 4 FEET LATE.
TONIGHT
SOUTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING WEST 5 TO 10 KNOTS EARLY IN THE MORNING. MOSTLY
CLEAR. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 2 FEET AFTER MIDNIGHT.
SATURDAY
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN THE
LATE MORNING AND EARLY AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
SATURDAY NIGHT
NORTHEAST WIND 5 KNOTS RISING TO 10 TO 15 KNOTS
WITH GUSTS TO AROUND 20 KNOTS IN THE LATE EVENING AND OVERNIGHT.
PARTLY CLOUDY. WAVES 1 TO 2 FEET.
LSZ121-152200-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
1100 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
25 KNOTS INCREASING TO 30 KNOTS IN THE AFTERNOON. SUNNY. WAVES
1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
MOSTLY CLEAR. WAVES 1 TO 2 FEET.
SATURDAY
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN THE
LATE MORNING AND 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.
LSZ148-152200-
OAK POINT TO SAXON HARBOR WI-
1100 AM CDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
25 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
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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