519
FZUS53 KDLH 132333
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
533 PM CST SAT DEC 13 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.
LSZ140-140500-
GRAND PORTAGE TO GRAND MARAIS MN-
533 PM CST SAT DEC 13 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CST THIS EVENING
..GALE WARNING IN EFFECT UNTIL 2 AM CST SUNDAY
TONIGHT
NORTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO 35 KNOTS
INCREASING TO 40 KNOTS IN THE LATE EVENING AND EARLY MORNING,
THEN DECREASING TO 30 KNOTS LATE IN THE NIGHT. PARTLY CLOUDY.
WAVES 2 TO 4 FEET.
SUNDAY
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING WEST WITH GUSTS TO AROUND 25 KNOTS IN THE
AFTERNOON. MOSTLY SUNNY IN THE MORNING THEN BECOMING MOSTLY
CLOUDY. WAVES 1 TO 2 FEET BUILDING TO 1 TO 3 FEET LATE IN THE
AFTERNOON.
SUNDAY NIGHT
SOUTHWEST WIND UP TO 30 KNOTS. GUSTS UP TO
35 KNOTS INCREASING TO 45 KNOTS IN THE LATE EVENING AND EARLY
MORNING, THEN DECREASING TO 35 KNOTS EARLY IN THE MORNING.
FREEZING SPRAY THROUGH THE NIGHT. SLIGHT CHANCE OF SNOW IN THE
EVENING. CHANCE OF SNOW AFTER MIDNIGHT. WAVES 4 TO 6 FEET
BUILDING TO 7 TO 10 FEET IN THE LATE EVENING AND OVERNIGHT. WAVES
OCCASIONALLY TO 12 FEET. A GALE WARNING MAY BE NEEDED.
MONDAY
NORTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
MOSTLY SUNNY. WAVES 4 TO 7 FEET SUBSIDING TO 1 TO 2 FEET. WAVES
OCCASIONALLY TO 9 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
LSZ141-140500-
GRAND MARAIS TO TACONITE HARBOR MN-
533 PM CST SAT DEC 13 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CST THIS EVENING
..GALE WARNING IN EFFECT UNTIL 2 AM CST SUNDAY
TONIGHT
NORTHWEST WIND 20 TO 25 KNOTS EASING TO 10 TO 15 KNOTS
LATE IN THE NIGHT. GUSTS UP TO 35 KNOTS INCREASING TO 40 KNOTS IN
THE LATE EVENING AND EARLY MORNING, THEN DECREASING TO 25 KNOTS
LATE IN THE NIGHT. PARTLY CLOUDY. WAVES 1 TO 3 FEET.
SUNDAY
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING WEST WITH GUSTS TO AROUND 20 KNOTS IN THE
AFTERNOON. MOSTLY SUNNY IN THE MORNING THEN BECOMING MOSTLY
CLOUDY. WAVES 1 FOOT OR LESS BUILDING TO 1 TO 3 FEET LATE IN THE
AFTERNOON.
SUNDAY NIGHT
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO
30 KNOTS INCREASING TO 35 KNOTS IN THE LATE EVENING AND EARLY
MORNING, THEN DECREASING TO 30 KNOTS EARLY IN THE MORNING.
FREEZING SPRAY THROUGH THE NIGHT. CHANCE OF SNOW AFTER MIDNIGHT.
WAVES 4 TO 7 FEET. WAVES OCCASIONALLY TO 9 FEET. A GALE WARNING
MAY BE NEEDED.
MONDAY
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE MORNING. MOSTLY SUNNY. WAVES 3 TO 5 FEET SUBSIDING
TO 1 TO 2 FEET IN THE AFTERNOON. A SMALL CRAFT ADVISORY MAY BE
NEEDED.
LSZ142-140500-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
533 PM CST SAT DEC 13 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CST SUNDAY
TONIGHT
NORTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 35 KNOTS IN THE LATE EVENING AND EARLY MORNING,
THEN DECREASING TO 25 KNOTS LATE IN THE NIGHT. PARTLY CLOUDY.
WAVES 1 TO 2 FEET.
SUNDAY
NORTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTHWEST 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 3 FEET.
SUNDAY NIGHT
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
25 KNOTS INCREASING TO 30 KNOTS IN THE LATE EVENING AND EARLY
MORNING, THEN DECREASING TO 25 KNOTS EARLY IN THE MORNING. SLIGHT
CHANCE OF SNOW AFTER MIDNIGHT. WAVES 3 TO 5 FEET. A SMALL CRAFT
ADVISORY MAY BE NEEDED.
MONDAY
NORTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS EASING TO 5 KNOTS LATE IN THE AFTERNOON. MOSTLY SUNNY.
WAVES 1 TO 3 FEET SUBSIDING TO 1 TO 2 FEET IN THE LATE MORNING
AND AFTERNOON.
LSZ143-140500-
SILVER BAY HARBOR TO TWO HARBORS MN-
533 PM CST SAT DEC 13 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CST SUNDAY
TONIGHT
NORTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
SUNDAY
NORTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTHWEST 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS IN THE AFTERNOON. MOSTLY SUNNY IN THE MORNING THEN
BECOMING MOSTLY CLOUDY. WAVES 1 TO 2 FEET BUILDING TO 1 TO 3 FEET
LATE IN THE AFTERNOON.
SUNDAY NIGHT
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO
30 KNOTS INCREASING TO 35 KNOTS IN THE LATE EVENING AND EARLY
MORNING, THEN DECREASING TO 25 KNOTS EARLY IN THE MORNING. HEAVY
FREEZING SPRAY AFTER MIDNIGHT. WAVES 3 TO 5 FEET. WAVES
OCCASIONALLY TO 7 FEET. A GALE WARNING MAY BE NEEDED.
MONDAY
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS
BECOMING NORTHWEST LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES
2 TO 4 FEET SUBSIDING TO 1 TO 2 FEET IN THE LATE MORNING AND
AFTERNOON.
LSZ144-140500-
TWO HARBORS TO DULUTH MN-
533 PM CST SAT DEC 13 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CST SUNDAY
TONIGHT
NORTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY EARLY IN THE
EVENING THEN BECOMING PARTLY CLOUDY. WAVES 1 TO 2 FEET.
SUNDAY
WEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE AFTERNOON. MOSTLY
SUNNY IN THE MORNING THEN BECOMING MOSTLY CLOUDY. WAVES 1 TO
3 FEET.
SUNDAY NIGHT
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO
30 KNOTS INCREASING TO 35 KNOTS IN THE LATE EVENING AND EARLY
MORNING, THEN DECREASING TO 25 KNOTS EARLY IN THE MORNING. MOSTLY
CLOUDY. WAVES 3 TO 5 FEET. WAVES OCCASIONALLY TO 7 FEET. A GALE
WARNING MAY BE NEEDED.
MONDAY
WEST WIND 10 TO 15 KNOTS BECOMING NORTHWEST 5 KNOTS IN
THE AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 3 FEET SUBSIDING TO 1 TO
2 FEET IN THE LATE MORNING AND AFTERNOON.
LSZ145-140500-
DULUTH MN TO PORT WING WI-
533 PM CST SAT DEC 13 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CST SUNDAY
TONIGHT
NORTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS.
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY CLOUDY. WAVES
2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET AFTER MIDNIGHT.
SUNDAY
WEST WIND 10 TO 15 KNOTS BECOMING SOUTHWEST 15 TO
20 KNOTS IN THE AFTERNOON. PARTLY SUNNY. WAVES 1 TO 3 FEET.
SUNDAY NIGHT
SOUTHWEST WIND UP TO 30 KNOTS. GUSTS UP TO
35 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY. WAVES 3 TO 5 FEET. A GALE
WARNING MAY BE NEEDED.
MONDAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS
EASING TO 5 KNOTS IN THE AFTERNOON. PARTLY SUNNY. WAVES 2 TO
4 FEET SUBSIDING TO 1 TO 2 FEET IN THE LATE MORNING AND
AFTERNOON.
LSZ146-140500-
PORT WING TO SAND ISLAND WI-
533 PM CST SAT DEC 13 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CST SUNDAY
TONIGHT
NORTHWEST WIND 20 TO 25 KNOTS EASING TO 10 TO 15 KNOTS
LATE IN THE NIGHT. MOSTLY CLOUDY. WAVES 3 TO 5 FEET SUBSIDING TO
1 TO 3 FEET LATE IN THE NIGHT.
SUNDAY
WEST WIND 10 TO 15 KNOTS EASING TO 10 KNOTS LATE IN THE
MORNING, THEN BECOMING SOUTHWEST WITH GUSTS TO AROUND 20 KNOTS IN
THE AFTERNOON. MOSTLY CLOUDY. WAVES 1 TO 3 FEET BUILDING TO 2 TO
4 FEET LATE IN THE AFTERNOON.
SUNDAY NIGHT
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO
25 KNOTS INCREASING TO 35 KNOTS IN THE LATE EVENING AND EARLY
MORNING, THEN DECREASING TO 30 KNOTS EARLY IN THE MORNING. SLIGHT
CHANCE OF SNOW AFTER MIDNIGHT. WAVES 3 TO 5 FEET. WAVES
OCCASIONALLY TO 7 FEET. A GALE WARNING MAY BE NEEDED.
MONDAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS
EASING TO 5 KNOTS IN THE AFTERNOON. PARTLY SUNNY. WAVES 2 TO
4 FEET SUBSIDING TO 1 TO 3 FEET IN THE LATE MORNING AND
AFTERNOON. A SMALL CRAFT ADVISORY MAY BE NEEDED.
LSZ147-140500-
SAND ISLAND TO BAYFIELD WI-
533 PM CST SAT DEC 13 2025
..HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 4 AM CST SUNDAY
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CST SUNDAY
TONIGHT
NORTHWEST WIND 20 TO 25 KNOTS EASING TO 10 TO 15 KNOTS
LATE IN THE NIGHT. HEAVY FREEZING SPRAY EARLY IN THE EVENING.
CHANCE OF SNOW EARLY IN THE EVENING, THEN SLIGHT CHANCE OF SNOW
IN THE LATE EVENING AND OVERNIGHT. WAVES 3 TO 5 FEET. WAVES
OCCASIONALLY TO 7 FEET.
SUNDAY
NORTHWEST WIND 10 TO 15 KNOTS BECOMING WEST LATE IN THE
MORNING, THEN BECOMING SOUTHWEST WITH GUSTS TO AROUND 20 KNOTS IN
THE AFTERNOON. MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
SUNDAY NIGHT
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
25 KNOTS INCREASING TO 30 KNOTS IN THE LATE EVENING AND EARLY
MORNING, THEN DECREASING TO 25 KNOTS EARLY IN THE MORNING. SLIGHT
CHANCE OF SNOW AFTER MIDNIGHT. WAVES 2 TO 4 FEET. A SMALL CRAFT
ADVISORY MAY BE NEEDED.
MONDAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS
BECOMING NORTHWEST 5 KNOTS LATE IN THE AFTERNOON. PARTLY SUNNY.
WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET IN THE LATE MORNING
AND AFTERNOON. A SMALL CRAFT ADVISORY MAY BE NEEDED.
LSZ150-140500-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
533 PM CST SAT DEC 13 2025
..HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 4 AM CST SUNDAY
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CST SUNDAY
TONIGHT
NORTHWEST WIND 20 TO 25 KNOTS. HEAVY FREEZING SPRAY
UNTIL EARLY MORNING. CHANCE OF SNOW IN THE EVENING. SLIGHT CHANCE
OF SNOW AFTER MIDNIGHT. WAVES 4 TO 7 FEET. WAVES OCCASIONALLY TO
9 FEET.
SUNDAY
WEST WIND 10 TO 15 KNOTS BECOMING SOUTHWEST 15 TO
20 KNOTS IN THE AFTERNOON. MOSTLY CLOUDY. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET EARLY IN THE AFTERNOON, THEN BUILDING TO
3 TO 5 FEET LATE IN THE AFTERNOON. A SMALL CRAFT ADVISORY MAY BE
NEEDED.
SUNDAY NIGHT
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO
25 KNOTS INCREASING TO 30 KNOTS IN THE LATE EVENING AND
OVERNIGHT. SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. WAVES 3 TO
5 FEET. WAVES OCCASIONALLY TO 7 FEET. A SMALL CRAFT ADVISORY MAY
BE NEEDED.
MONDAY
WEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS
BECOMING NORTHWEST 5 TO 10 KNOTS IN THE AFTERNOON. PARTLY SUNNY.
WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 2 FEET IN THE AFTERNOON. A
SMALL CRAFT ADVISORY MAY BE NEEDED.
LSZ121-140500-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
533 PM CST SAT DEC 13 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CST SUNDAY
TONIGHT
NORTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS.
CHANCE OF SNOW IN THE EVENING, THEN SLIGHT CHANCE OF SNOW AFTER
MIDNIGHT. WAVES 1 TO 2 FEET.
SUNDAY
WEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS LATE IN THE AFTERNOON.
PARTLY SUNNY. WAVES 1 FOOT OR LESS.
SUNDAY NIGHT
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
25 KNOTS INCREASING TO 30 KNOTS IN THE LATE EVENING AND EARLY
MORNING, THEN DECREASING TO 25 KNOTS EARLY IN THE MORNING. MOSTLY
CLOUDY. WAVES 1 TO 2 FEET.
MONDAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS
EASING TO 5 TO 10 KNOTS IN THE AFTERNOON. PARTLY SUNNY. WAVES
1 FOOT OR LESS.
LSZ148-140500-
OAK POINT TO SAXON HARBOR WI-
533 PM CST SAT DEC 13 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CST SUNDAY
TONIGHT
NORTHWEST WIND 20 TO 25 KNOTS EASING TO 10 TO 15 KNOTS
WITH GUSTS TO AROUND 20 KNOTS LATE IN THE NIGHT. SNOW LIKELY
EARLY IN THE EVENING, THEN CHANCE OF SNOW LATE IN THE EVENING.
SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. WAVES 3 TO 5 FEET.
SUNDAY
WEST WIND 10 TO 15 KNOTS BECOMING SOUTHWEST LATE IN THE
MORNING, THEN RISING TO 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS IN THE AFTERNOON. PARTLY SUNNY. WAVES 1 TO 2 FEET.
SUNDAY NIGHT
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO
25 KNOTS INCREASING TO 30 KNOTS IN THE LATE EVENING AND
OVERNIGHT. CLOUDY. WAVES 1 TO 2 FEET BUILDING TO 2 TO 4 FEET IN
THE LATE EVENING AND OVERNIGHT. A SMALL CRAFT ADVISORY MAY BE
NEEDED.
MONDAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS
EASING TO 5 KNOTS LATE IN THE AFTERNOON. PARTLY SUNNY. WAVES 1 TO
3 FEET.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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