598
FZUS53 KDLH 161817
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
1217 PM CST TUE DEC 16 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.
LSZ140-162300-
GRAND PORTAGE TO GRAND MARAIS MN-
1217 PM CST TUE DEC 16 2025
..GALE WARNING IN EFFECT THROUGH LATE TONIGHT
REST OF TODAY
SOUTHWEST WIND UP TO 30 KNOTS WITH GALES TO
AROUND 40 KNOTS. MOSTLY SUNNY. WAVES 8 TO 11 FEET. WAVES
OCCASIONALLY TO 14 FEET.
TONIGHT
WEST WIND 20 TO 25 KNOTS WITH GALES TO AROUND 45 KNOTS
BECOMING NORTHWEST 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS
EARLY IN THE MORNING. MOSTLY CLOUDY. WAVES 7 TO 10 FEET SUBSIDING
TO 1 TO 3 FEET. WAVES OCCASIONALLY TO 13 FEET.
WEDNESDAY
WEST WIND 10 TO 15 KNOTS BECOMING SOUTHWEST WITH
GUSTS TO AROUND 25 KNOTS IN THE AFTERNOON. SLIGHT CHANCE OF SNOW
IN THE AFTERNOON. WAVES 1 TO 2 FEET BUILDING TO 3 TO 5 FEET IN
THE AFTERNOON. WAVES OCCASIONALLY TO 7 FEET. A SMALL CRAFT
ADVISORY MAY BE NEEDED.
WEDNESDAY NIGHT
SOUTH 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. SLIGHT
CHANCE OF RAIN IN THE EVENING. SNOW THROUGH THE NIGHT. RAIN AFTER
MIDNIGHT. WAVES 5 TO 8 FEET. WAVES OCCASIONALLY TO 10 FEET. A
GALE WARNING MAY BE NEEDED.
LSZ141-162300-
GRAND MARAIS TO TACONITE HARBOR MN-
1217 PM CST TUE DEC 16 2025
..GALE WARNING IN EFFECT THROUGH LATE TONIGHT
REST OF TODAY
SOUTHWEST WIND 20 TO 25 KNOTS WITH GALES TO
AROUND 35 KNOTS. SUNNY. WAVES 6 TO 9 FEET. WAVES OCCASIONALLY TO
11 FEET.
TONIGHT
WEST WIND 20 TO 25 KNOTS WITH GALES TO AROUND 45 KNOTS
BECOMING NORTHWEST 15 TO 20 KNOTS WITH GALES TO AROUND 45 KNOTS
AFTER MIDNIGHT. MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. WAVES 5 TO 8 FEET SUBSIDING TO 1 TO 3 FEET. WAVES
OCCASIONALLY TO 10 FEET.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE AFTERNOON. SLIGHT
CHANCE OF SNOW IN THE AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO
2 TO 4 FEET LATE IN THE AFTERNOON.
WEDNESDAY NIGHT
SOUTH 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. SNOW
LIKELY AND SLIGHT CHANCE OF RAIN IN THE EVENING, THEN RAIN AND
SNOW AFTER MIDNIGHT. WAVES 3 TO 5 FEET. WAVES OCCASIONALLY TO
7 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
LSZ142-162300-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
1217 PM CST TUE DEC 16 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING
...GALE WARNING IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT CST
TONIGHT...
REST OF TODAY
SOUTHWEST WIND 20 TO 25 KNOTS WITH GUSTS TO
AROUND 30 KNOTS. SUNNY. WAVES 4 TO 7 FEET. WAVES OCCASIONALLY TO
9 FEET.
TONIGHT
WEST WIND 20 TO 25 KNOTS EASING TO 10 TO 15 KNOTS
EARLY IN THE MORNING. GALES UP TO 40 KNOTS INCREASING TO 45 KNOTS
IN THE LATE EVENING AND EARLY MORNING, THEN DECREASING TO
30 KNOTS EARLY IN THE MORNING. MOSTLY CLOUDY IN THE EVENING THEN
BECOMING PARTLY CLOUDY. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO
2 FEET. WAVES OCCASIONALLY TO 7 FEET.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTH WITH GUSTS TO AROUND 20 KNOTS LATE IN THE
AFTERNOON. SLIGHT CHANCE OF SNOW IN THE AFTERNOON. WAVES 1 TO
3 FEET.
WEDNESDAY NIGHT
SOUTH WIND 10 TO 15 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. SNOW
AND LIGHT FREEZING DRIZZLE LIKELY IN THE EVENING, THEN RAIN AND
SNOW AFTER MIDNIGHT. WAVES 3 TO 5 FEET. A SMALL CRAFT ADVISORY
MAY BE NEEDED.
LSZ143-162300-
SILVER BAY HARBOR TO TWO HARBORS MN-
1217 PM CST TUE DEC 16 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING
...GALE WARNING IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT CST
TONIGHT...
REST OF TODAY
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO
35 KNOTS DECREASING TO 30 KNOTS LATE. SUNNY. WAVES 4 TO 7 FEET.
WAVES OCCASIONALLY TO 9 FEET.
TONIGHT
WEST WIND 20 TO 25 KNOTS WITH GALES TO AROUND 40 KNOTS
EASING TO 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS EARLY IN
THE MORNING. MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET AFTER
MIDNIGHT. WAVES OCCASIONALLY TO 7 FEET.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE AFTERNOON. SLIGHT
CHANCE OF SNOW IN THE AFTERNOON. WAVES 1 TO 2 FEET BUILDING TO
1 TO 3 FEET LATE IN THE AFTERNOON.
WEDNESDAY NIGHT
SOUTH 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. SNOW
AND LIGHT FREEZING DRIZZLE LIKELY IN THE EVENING, THEN RAIN
LIKELY AND SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. WAVES 4 TO
7 FEET. WAVES OCCASIONALLY TO 9 FEET. A SMALL CRAFT ADVISORY MAY
BE NEEDED.
LSZ144-162300-
TWO HARBORS TO DULUTH MN-
1217 PM CST TUE DEC 16 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING
...GALE WARNING IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT CST
TONIGHT...
REST OF TODAY
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO
35 KNOTS DECREASING TO 30 KNOTS LATE. SUNNY. WAVES 4 TO 6 FEET.
WAVES OCCASIONALLY TO 7 FEET.
TONIGHT
WEST WIND 20 TO 25 KNOTS WITH GALES TO AROUND 40 KNOTS
EASING TO 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS EARLY IN
THE MORNING. MOSTLY CLOUDY IN THE EVENING THEN CLEARING. WAVES
3 TO 5 FEET SUBSIDING TO 1 TO 2 FEET EARLY IN THE MORNING.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTH 15 TO
20 KNOTS WITH GUSTS TO AROUND 25 KNOTS IN THE AFTERNOON. SLIGHT
CHANCE OF SNOW IN THE AFTERNOON. WAVES 1 TO 2 FEET BUILDING TO
1 TO 3 FEET LATE IN THE AFTERNOON.
WEDNESDAY NIGHT
SOUTH WIND UP TO 30 KNOTS. GUSTS UP TO
30 KNOTS INCREASING TO 35 KNOTS IN THE LATE EVENING AND EARLY
MORNING. SNOW AND RAIN WITH LIGHT FREEZING DRIZZLE LIKELY IN THE
EVENING, THEN RAIN LIKELY AND SLIGHT CHANCE OF SNOW AFTER
MIDNIGHT. WAVES 4 TO 7 FEET. WAVES OCCASIONALLY TO 10 FEET. A
GALE WARNING MAY BE NEEDED.
LSZ145-162300-
DULUTH MN TO PORT WING WI-
1217 PM CST TUE DEC 16 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING
...GALE WARNING IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT CST
TONIGHT...
REST OF TODAY
SOUTHWEST WIND 20 TO 25 KNOTS WITH GALES TO
AROUND 35 KNOTS. SUNNY. WAVES 4 TO 6 FEET. WAVES OCCASIONALLY TO
8 FEET.
TONIGHT
WEST WIND UP TO 30 KNOTS WITH GALES TO AROUND 35 KNOTS
EASING TO 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS EARLY IN
THE MORNING. MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. WAVES 4 TO 7 FEET SUBSIDING TO 2 TO 4 FEET EARLY IN THE
MORNING. WAVES OCCASIONALLY TO 9 FEET.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS RISING TO 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS EARLY IN THE AFTERNOON,
THEN BECOMING SOUTH 20 TO 25 KNOTS LATE IN THE AFTERNOON. SLIGHT
CHANCE OF SNOW IN THE AFTERNOON. WAVES 1 TO 3 FEET. A SMALL CRAFT
ADVISORY MAY BE NEEDED.
WEDNESDAY NIGHT
SOUTH WIND UP TO 30 KNOTS. SNOW, RAIN AND
LIGHT FREEZING DRIZZLE IN THE EVENING, THEN RAIN, SNOW AND LIGHT
FREEZING DRIZZLE LIKELY AFTER MIDNIGHT. WAVES 4 TO 6 FEET. WAVES
OCCASIONALLY TO 8 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
LSZ146-162300-
PORT WING TO SAND ISLAND WI-
1217 PM CST TUE DEC 16 2025
..GALE WARNING IN EFFECT UNTIL MIDNIGHT CST TONIGHT
REST OF TODAY
SOUTHWEST WIND 20 TO 25 KNOTS WITH GALES TO
AROUND 35 KNOTS. SUNNY. WAVES 5 TO 8 FEET. WAVES OCCASIONALLY TO
11 FEET.
TONIGHT
WEST WIND 20 TO 25 KNOTS WITH GALES TO AROUND 35 KNOTS
EASING TO 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS EARLY IN
THE MORNING. MOSTLY CLOUDY. WAVES 5 TO 8 FEET SUBSIDING TO 2 TO
4 FEET EARLY IN THE MORNING. WAVES OCCASIONALLY TO 11 FEET.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS BECOMING SOUTH 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE AFTERNOON. SLIGHT
CHANCE OF SNOW IN THE AFTERNOON. WAVES 1 TO 2 FEET.
WEDNESDAY NIGHT
SOUTH WIND 20 TO 25 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. RAIN,
SNOW AND LIGHT FREEZING DRIZZLE LIKELY. WAVES 3 TO 5 FEET. WAVES
OCCASIONALLY TO 7 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
LSZ147-162300-
SAND ISLAND TO BAYFIELD WI-
1217 PM CST TUE DEC 16 2025
..GALE WARNING IN EFFECT UNTIL MIDNIGHT CST TONIGHT
REST OF TODAY
SOUTHWEST WIND 20 TO 25 KNOTS WITH GALES TO
AROUND 35 KNOTS. SUNNY. WAVES 5 TO 8 FEET. WAVES OCCASIONALLY TO
10 FEET.
TONIGHT
WEST WIND UP TO 30 KNOTS EASING TO 15 TO 20 KNOTS
EARLY IN THE MORNING. GUSTS UP TO 35 KNOTS. MOSTLY CLOUDY. WAVES
5 TO 8 FEET SUBSIDING TO 3 TO 5 FEET EARLY IN THE MORNING. WAVES
OCCASIONALLY TO 11 FEET.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS BECOMING SOUTH 10 TO
15 KNOTS WITH GUSTS TO AROUND 25 KNOTS IN THE AFTERNOON. SLIGHT
CHANCE OF SNOW IN THE AFTERNOON. WAVES 1 TO 3 FEET.
WEDNESDAY NIGHT
SOUTH WIND 15 TO 20 KNOTS. GUSTS UP TO
30 KNOTS DECREASING TO 25 KNOTS EARLY IN THE MORNING. SNOW AND
LIGHT FREEZING DRIZZLE LIKELY IN THE EVENING, THEN RAIN LIKELY
AND SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
LSZ150-162300-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
1217 PM CST TUE DEC 16 2025
..GALE WARNING IN EFFECT UNTIL MIDNIGHT CST TONIGHT
REST OF TODAY
SOUTHWEST WIND 20 TO 25 KNOTS. GALES UP TO
40 KNOTS DECREASING TO 35 KNOTS LATE. SUNNY. WAVES 6 TO 9 FEET.
WAVES OCCASIONALLY TO 12 FEET.
TONIGHT
WEST WIND UP TO 30 KNOTS EASING TO 15 TO 20 KNOTS
EARLY IN THE MORNING. GALES UP TO 40 KNOTS DECREASING TO
25 KNOTS. MOSTLY CLOUDY. WAVES 7 TO 10 FEET SUBSIDING TO 4 TO
7 FEET EARLY IN THE MORNING. WAVES OCCASIONALLY TO 13 FEET.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS BECOMING SOUTH 10 TO
15 KNOTS WITH GUSTS TO AROUND 25 KNOTS LATE IN THE AFTERNOON.
SLIGHT CHANCE OF LIGHT FREEZING DRIZZLE AND SNOW IN THE
AFTERNOON. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 2 FEET IN THE LATE
MORNING AND EARLY AFTERNOON, THEN BUILDING TO 1 TO 3 FEET LATE IN
THE AFTERNOON.
WEDNESDAY NIGHT
SOUTH 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. CHANCE
OF SNOW, RAIN AND LIGHT FREEZING DRIZZLE IN THE EVENING, THEN
RAIN AND SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. WAVES 4 TO 6 FEET.
WAVES OCCASIONALLY TO 8 FEET. A GALE WARNING MAY BE NEEDED.
LSZ121-162300-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
1217 PM CST TUE DEC 16 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF TODAY
SOUTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO
AROUND 30 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
WEST WIND 15 TO 20 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 35 KNOTS LATE IN THE EVENING, THEN DECREASING TO
30 KNOTS AFTER MIDNIGHT DECREASING TO 20 KNOTS EARLY IN THE
MORNING. MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. WAVES 1 TO 2 FEET. A GALE WARNING MAY BE NEEDED.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTH 10 TO
15 KNOTS WITH GUSTS TO AROUND 25 KNOTS IN THE AFTERNOON. SLIGHT
CHANCE OF SNOW IN THE AFTERNOON. WAVES 1 TO 2 FEET.
WEDNESDAY NIGHT
SOUTH WIND 20 TO 25 KNOTS. GUSTS UP TO
30 KNOTS DECREASING TO 25 KNOTS EARLY IN THE MORNING. SNOW AND
LIGHT FREEZING DRIZZLE LIKELY THROUGH THE NIGHT. RAIN LIKELY
AFTER MIDNIGHT. WAVES 1 TO 2 FEET. A SMALL CRAFT ADVISORY MAY BE
NEEDED.
LSZ148-162300-
OAK POINT TO SAXON HARBOR WI-
1217 PM CST TUE DEC 16 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF TODAY
SOUTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO
AROUND 30 KNOTS. SUNNY. WAVES 2 TO 4 FEET.
TONIGHT
WEST WIND 20 TO 25 KNOTS. GUSTS UP TO 30 KNOTS UNTIL
EARLY MORNING. MOSTLY CLOUDY. WAVES 3 TO 5 FEET.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST 5 TO
10 KNOTS WITH GUSTS TO AROUND 20 KNOTS EARLY IN THE AFTERNOON,
THEN BECOMING SOUTH 15 TO 20 KNOTS WITH GUSTS TO AROUND 30 KNOTS
LATE IN THE AFTERNOON. SLIGHT CHANCE OF SNOW IN THE AFTERNOON.
WAVES 1 TO 2 FEET.
WEDNESDAY NIGHT
SOUTH WIND UP TO 30 KNOTS. GUSTS UP TO
35 KNOTS DECREASING TO 30 KNOTS EARLY IN THE MORNING. CHANCE OF
SNOW, RAIN AND LIGHT FREEZING DRIZZLE IN THE EVENING, THEN RAIN,
LIGHT FREEZING DRIZZLE LIKELY AND SLIGHT CHANCE OF SNOW AFTER
MIDNIGHT. WAVES 4 TO 6 FEET. WAVES OCCASIONALLY TO 7 FEET. A GALE
WARNING MAY BE NEEDED.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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