143
FZUS53 KDLH 172302
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
602 PM CDT SAT OCT 17 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.
LSZ140-180400-
GRAND PORTAGE TO GRAND MARAIS MN-
602 PM CDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
...GALE WARNING IN EFFECT FROM 10 PM CDT THIS EVENING THROUGH
SUNDAY AFTERNOON...
TONIGHT
SOUTHWEST WIND UP TO 30 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 40 KNOTS. PARTLY CLOUDY. WAVES 7 TO 10 FEET. WAVES
OCCASIONALLY TO 13 FEET.
SUNDAY
SOUTHWEST WIND UP TO 30 KNOTS. GALES UP TO 40 KNOTS
DECREASING TO 35 KNOTS LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES
8 TO 13 FEET. WAVES OCCASIONALLY TO 17 FEET.
SUNDAY NIGHT
SOUTHWEST WIND 20 TO 25 KNOTS WITH GUSTS TO
AROUND 30 KNOTS BECOMING WEST 5 TO 10 KNOTS AFTER MIDNIGHT.
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY CLOUDY. WAVES
6 TO 9 FEET SUBSIDING TO 1 TO 2 FEET. WAVES OCCASIONALLY TO
11 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
MONDAY
NORTHWEST WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
MOSTLY SUNNY. WAVES 1 TO 2 FEET.
LSZ141-180400-
GRAND MARAIS TO TACONITE HARBOR MN-
602 PM CDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING
TONIGHT
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 35 KNOTS LATE IN THE NIGHT. MOSTLY CLEAR. WAVES
4 TO 7 FEET. WAVES OCCASIONALLY TO 9 FEET.
SUNDAY
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO 35 KNOTS
DECREASING TO 30 KNOTS IN THE AFTERNOON. MOSTLY SUNNY. WAVES 6 TO
9 FEET. WAVES OCCASIONALLY TO 12 FEET. A GALE WARNING MAY BE
NEEDED.
SUNDAY NIGHT
SOUTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS BECOMING WEST 5 TO 10 KNOTS IN THE LATE EVENING
AND EARLY MORNING, THEN BECOMING NORTHWEST EARLY IN THE MORNING.
PARTLY CLOUDY. WAVES 4 TO 6 FEET SUBSIDING TO 1 TO 2 FEET. WAVES
OCCASIONALLY TO 8 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
MONDAY
NORTH WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
LSZ142-180400-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
602 PM CDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING
TONIGHT
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 35 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR. WAVES 3 TO
5 FEET. WAVES OCCASIONALLY TO 7 FEET.
SUNDAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 35 KNOTS
DECREASING TO 30 KNOTS IN THE AFTERNOON. MOSTLY SUNNY. WAVES 4 TO
6 FEET. WAVES OCCASIONALLY TO 8 FEET. A GALE WARNING MAY BE
NEEDED.
SUNDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS BECOMING WEST 5 KNOTS AFTER MIDNIGHT. PARTLY
CLOUDY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 2 FEET IN THE LATE
EVENING AND OVERNIGHT.
MONDAY
NORTH WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
SUNNY. WAVES 1 FOOT OR LESS.
LSZ143-180400-
SILVER BAY HARBOR TO TWO HARBORS MN-
602 PM CDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING
TONIGHT
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 35 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR. WAVES 3 TO
5 FEET. WAVES OCCASIONALLY TO 7 FEET.
SUNDAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 35 KNOTS
DECREASING TO 30 KNOTS LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES
4 TO 6 FEET. WAVES OCCASIONALLY TO 8 FEET. A GALE WARNING MAY BE
NEEDED.
SUNDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS BECOMING WEST 5 KNOTS AFTER MIDNIGHT. PARTLY
CLOUDY. WAVES 1 TO 3 FEET SUBSIDING TO 1 TO 2 FEET IN THE LATE
EVENING AND OVERNIGHT.
MONDAY
NORTH WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
MORNING AND AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
LSZ144-180400-
TWO HARBORS TO DULUTH MN-
602 PM CDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING
TONIGHT
SOUTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
30 KNOTS. MOSTLY CLEAR. WAVES 3 TO 5 FEET.
SUNDAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 35 KNOTS
DECREASING TO 25 KNOTS. MOSTLY SUNNY. WAVES 4 TO 6 FEET SUBSIDING
TO 1 TO 3 FEET LATE IN THE AFTERNOON. WAVES OCCASIONALLY TO
7 FEET. A GALE WARNING MAY BE NEEDED.
SUNDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS BECOMING WEST 5 KNOTS AFTER MIDNIGHT. PARTLY
CLOUDY. WAVES 1 TO 2 FEET.
MONDAY
NORTH WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
MORNING AND AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
LSZ145-180400-
DULUTH MN TO PORT WING WI-
602 PM CDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING
TONIGHT
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 35 KNOTS LATE IN THE EVENING, THEN DECREASING TO
30 KNOTS AFTER MIDNIGHT. CLEAR UNTIL EARLY MORNING THEN BECOMING
PARTLY CLOUDY. WAVES 3 TO 5 FEET.
SUNDAY
SOUTHWEST WIND 20 TO 25 KNOTS WITH GUSTS TO AROUND
30 KNOTS EASING TO 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES 3 TO 5 FEET SUBSIDING
TO 1 TO 3 FEET LATE IN THE AFTERNOON. WAVES OCCASIONALLY TO
7 FEET.
SUNDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS EASING TO 5 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR.
WAVES 1 TO 2 FEET.
MONDAY
SOUTHWEST WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
MORNING AND AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
LSZ146-180400-
PORT WING TO SAND ISLAND WI-
602 PM CDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
...GALE WARNING IN EFFECT FROM 10 PM CDT THIS EVENING THROUGH
SUNDAY AFTERNOON...
TONIGHT
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 35 KNOTS IN THE LATE EVENING AND OVERNIGHT. MOSTLY
CLEAR. WAVES 3 TO 5 FEET. WAVES OCCASIONALLY TO 7 FEET.
SUNDAY
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO 35 KNOTS
DECREASING TO 25 KNOTS. MOSTLY SUNNY. WAVES 4 TO 7 FEET SUBSIDING
TO 2 TO 4 FEET LATE IN THE AFTERNOON. WAVES OCCASIONALLY TO
9 FEET.
SUNDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS EASING TO 5 TO 10 KNOTS WITH GUSTS TO AROUND
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.
MONDAY
WEST WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
MORNING AND AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
LSZ147-180400-
SAND ISLAND TO BAYFIELD WI-
602 PM CDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING
TONIGHT
SOUTHWEST WIND 20 TO 25 KNOTS WITH GALES TO AROUND
35 KNOTS. MOSTLY CLEAR. WAVES 3 TO 5 FEET.
SUNDAY
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO 35 KNOTS
DECREASING TO 25 KNOTS. MOSTLY SUNNY. WAVES 4 TO 6 FEET. WAVES
OCCASIONALLY TO 8 FEET. A GALE WARNING MAY BE NEEDED.
SUNDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS BECOMING WEST 5 KNOTS EARLY IN THE MORNING.
PARTLY CLOUDY. WAVES 1 TO 3 FEET.
MONDAY
WEST WIND 5 KNOTS BECOMING NORTH LATE IN THE MORNING,
THEN BECOMING NORTHEAST IN THE AFTERNOON. SUNNY. WAVES 1 FOOT OR
LESS.
LSZ150-180400-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
602 PM CDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
...GALE WARNING IN EFFECT FROM 10 PM CDT THIS EVENING THROUGH
SUNDAY AFTERNOON...
TONIGHT
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 35 KNOTS IN THE LATE EVENING AND OVERNIGHT. MOSTLY
CLEAR. WAVES 4 TO 6 FEET. WAVES OCCASIONALLY TO 8 FEET.
SUNDAY
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO 35 KNOTS
DECREASING TO 25 KNOTS. MOSTLY SUNNY. WAVES 5 TO 8 FEET SUBSIDING
TO 4 TO 6 FEET LATE IN THE AFTERNOON. WAVES OCCASIONALLY TO
10 FEET.
SUNDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS IN THE EVENING. PARTLY CLOUDY. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET IN THE LATE EVENING AND OVERNIGHT.
MONDAY
WEST WIND 5 KNOTS BECOMING NORTH LATE IN THE MORNING,
THEN BECOMING NORTHEAST IN THE AFTERNOON. SUNNY. WAVES 1 FOOT OR
LESS.
LSZ121-180400-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
602 PM CDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING
TONIGHT
SOUTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
30 KNOTS. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
SUNDAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 30 KNOTS
DECREASING TO 25 KNOTS LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES
1 TO 2 FEET.
SUNDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
MONDAY
SOUTHWEST WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTHEAST 5 KNOTS IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
LSZ148-180400-
OAK POINT TO SAXON HARBOR WI-
602 PM CDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING
TONIGHT
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 35 KNOTS LATE IN THE NIGHT. MOSTLY CLEAR. WAVES
1 TO 3 FEET.
SUNDAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 35 KNOTS
DECREASING TO 25 KNOTS. MOSTLY SUNNY. WAVES 2 TO 4 FEET SUBSIDING
TO 1 TO 2 FEET LATE IN THE AFTERNOON. A GALE WARNING MAY BE
NEEDED.
SUNDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS EASING TO 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS IN THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY. WAVES
1 TO 2 FEET.
MONDAY
SOUTHWEST WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTHEAST 5 KNOTS IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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