106
FZUS53 KDLH 190527
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
1127 PM CST THU DEC 18 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.
LSZ140-191100-
GRAND PORTAGE TO GRAND MARAIS MN-
1127 PM CST THU DEC 18 2025
..GALE WARNING IN EFFECT UNTIL 4 AM CST FRIDAY
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE
SATURDAY NIGHT...
REST OF TONIGHT
NORTH WIND UP TO 30 KNOTS. GALES UP TO
40 KNOTS INCREASING TO 45 KNOTS AFTER MIDNIGHT, THEN DECREASING
TO 40 KNOTS TOWARD DAYBREAK. HEAVY FREEZING SPRAY LATE IN THE
EVENING. SNOW LATE IN THE EVENING, THEN SNOW LIKELY AFTER
MIDNIGHT. CHANCE OF SNOW TOWARD DAYBREAK. WAVES 4 TO 7 FEET.
WAVES OCCASIONALLY TO 9 FEET.
FRIDAY
NORTH WIND 20 TO 25 KNOTS WITH GUSTS TO AROUND 30 KNOTS
BECOMING NORTHEAST 5 TO 10 KNOTS EARLY IN THE AFTERNOON, THEN
BECOMING SOUTHEAST LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES
2 TO 4 FEET SUBSIDING TO 1 TO 2 FEET IN THE AFTERNOON. A SMALL
CRAFT ADVISORY MAY BE NEEDED.
FRIDAY NIGHT
SOUTH WIND 20 TO 25 KNOTS WITH GALES TO AROUND
35 KNOTS BECOMING SOUTHWEST WITH GUSTS TO AROUND 30 KNOTS EARLY
IN THE MORNING. SNOW LIKELY. WAVES 1 TO 2 FEET BUILDING TO 4 TO
7 FEET IN THE LATE EVENING AND OVERNIGHT. WAVES OCCASIONALLY TO
9 FEET. A GALE WARNING MAY BE NEEDED.
SATURDAY
WEST WIND 20 TO 25 KNOTS. GUSTS UP TO 35 KNOTS.
SLIGHT CHANCE OF SNOW IN THE MORNING. HEAVY FREEZING SPRAY IN THE
AFTERNOON. WAVES 5 TO 8 FEET. WAVES OCCASIONALLY TO 10 FEET. A
GALE WARNING MAY BE NEEDED.
LSZ141-191100-
GRAND MARAIS TO TACONITE HARBOR MN-
1127 PM CST THU DEC 18 2025
..GALE WARNING IN EFFECT UNTIL 4 AM CST FRIDAY
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE
SATURDAY NIGHT...
REST OF TONIGHT
NORTH WIND 20 TO 25 KNOTS. GALES UP TO
40 KNOTS DECREASING TO 35 KNOTS TOWARD DAYBREAK. CHANCE OF SNOW
LATE IN THE EVENING, THEN SLIGHT CHANCE OF SNOW TOWARD DAYBREAK.
WAVES 2 TO 4 FEET.
FRIDAY
NORTH WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS
EASING TO 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS LATE IN THE
MORNING, THEN BECOMING WEST EARLY IN THE AFTERNOON BECOMING SOUTH
LATE IN THE AFTERNOON. CHANCE OF SNOW IN THE AFTERNOON. WAVES
1 TO 2 FEET.
FRIDAY NIGHT
SOUTH WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
30 KNOTS BECOMING SOUTHWEST WITH GUSTS TO AROUND 30 KNOTS AFTER
MIDNIGHT. SNOW LIKELY. WAVES 1 TO 2 FEET BUILDING TO 2 TO 4 FEET
IN THE LATE EVENING AND OVERNIGHT. A SMALL CRAFT ADVISORY MAY BE
NEEDED.
SATURDAY
WEST WIND 20 TO 25 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 35 KNOTS IN THE LATE MORNING AND AFTERNOON. SLIGHT
CHANCE OF SNOW IN THE MORNING. WAVES 3 TO 5 FEET. WAVES
OCCASIONALLY TO 7 FEET. A GALE WARNING MAY BE NEEDED.
LSZ142-191100-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
1127 PM CST THU DEC 18 2025
..GALE WARNING IN EFFECT UNTIL 4 AM CST FRIDAY
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE
SATURDAY NIGHT...
REST OF TONIGHT
NORTH WIND 15 TO 20 KNOTS. GUSTS UP TO
35 KNOTS INCREASING TO 40 KNOTS AFTER MIDNIGHT, THEN DECREASING
TO 35 KNOTS TOWARD DAYBREAK. CHANCE OF SNOW LATE IN THE EVENING,
THEN SLIGHT CHANCE OF SNOW TOWARD DAYBREAK. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET TOWARD DAYBREAK.
FRIDAY
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING WEST 5 KNOTS EARLY IN THE AFTERNOON, THEN
BECOMING SOUTH LATE IN THE AFTERNOON. CHANCE OF SNOW IN THE
AFTERNOON. WAVES 1 TO 2 FEET.
FRIDAY NIGHT
SOUTH WIND 10 TO 15 KNOTS BECOMING SOUTHWEST
AFTER MIDNIGHT. GUSTS UP TO 25 KNOTS. SNOW LIKELY IN THE EVENING,
THEN CHANCE OF SNOW AFTER MIDNIGHT. WAVES 1 TO 2 FEET BUILDING TO
1 TO 3 FEET EARLY IN THE MORNING.
SATURDAY
WEST WIND 20 TO 25 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 35 KNOTS EARLY IN THE AFTERNOON, THEN DECREASING TO
30 KNOTS LATE IN THE AFTERNOON. SLIGHT CHANCE OF SNOW IN THE
MORNING. WAVES 2 TO 4 FEET. A GALE WARNING MAY BE NEEDED.
LSZ143-191100-
SILVER BAY HARBOR TO TWO HARBORS MN-
1127 PM CST THU DEC 18 2025
..GALE WARNING IN EFFECT UNTIL 4 AM CST FRIDAY
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE
SATURDAY NIGHT...
REST OF TONIGHT
NORTH WIND 15 TO 20 KNOTS. GUSTS UP TO
30 KNOTS INCREASING TO 35 KNOTS AFTER MIDNIGHT, THEN DECREASING
TO 30 KNOTS TOWARD DAYBREAK. CHANCE OF SNOW LATE IN THE EVENING,
THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 2 FEET TOWARD DAYBREAK.
FRIDAY
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTHWEST 5 KNOTS EARLY IN THE AFTERNOON, THEN
BECOMING SOUTH LATE IN THE AFTERNOON. CHANCE OF SNOW IN THE
AFTERNOON. WAVES 1 TO 2 FEET.
FRIDAY NIGHT
SOUTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING SOUTHWEST 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS AFTER MIDNIGHT. SNOW LIKELY. WAVES 1 TO 3 FEET BUILDING
TO 2 TO 4 FEET AFTER MIDNIGHT.
SATURDAY
WEST WIND 20 TO 25 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 35 KNOTS IN THE AFTERNOON. PARTLY SUNNY. WAVES 3 TO
5 FEET. A GALE WARNING MAY BE NEEDED.
LSZ144-191100-
TWO HARBORS TO DULUTH MN-
1127 PM CST THU DEC 18 2025
..GALE WARNING IN EFFECT UNTIL 4 AM CST FRIDAY
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE
SATURDAY NIGHT...
REST OF TONIGHT
NORTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO
30 KNOTS DECREASING TO 25 KNOTS TOWARD DAYBREAK. CHANCE OF SNOW
LATE IN THE EVENING, THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT.
WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET TOWARD DAYBREAK.
FRIDAY
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTH 5 TO 10 KNOTS IN THE AFTERNOON. CHANCE OF
SNOW IN THE AFTERNOON. WAVES 1 TO 2 FEET.
FRIDAY NIGHT
SOUTH WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING SOUTHWEST WITH GUSTS TO AROUND 25 KNOTS AFTER
MIDNIGHT. SNOW LIKELY. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET
AFTER MIDNIGHT.
SATURDAY
WEST WIND UP TO 30 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 35 KNOTS IN THE AFTERNOON. PARTLY SUNNY. WAVES 4 TO
6 FEET. WAVES OCCASIONALLY TO 7 FEET. A GALE WARNING MAY BE
NEEDED.
LSZ145-191100-
DULUTH MN TO PORT WING WI-
1127 PM CST THU DEC 18 2025
..GALE WARNING IN EFFECT UNTIL 4 AM CST FRIDAY
..HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 7 AM CST FRIDAY
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE
SATURDAY NIGHT...
REST OF TONIGHT
NORTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO
30 KNOTS DECREASING TO 25 KNOTS TOWARD DAYBREAK. HEAVY FREEZING
SPRAY LATE IN THE EVENING. CHANCE OF SNOW LATE IN THE EVENING.
SLIGHT CHANCE OF SNOW TOWARD DAYBREAK. WAVES 4 TO 6 FEET. WAVES
OCCASIONALLY TO 8 FEET.
FRIDAY
NORTHWEST WIND 10 TO 15 KNOTS BECOMING WEST 5 TO
10 KNOTS LATE IN THE MORNING, THEN BECOMING SOUTH IN THE
AFTERNOON. CHANCE OF SNOW IN THE AFTERNOON. WAVES 1 TO 3 FEET
SUBSIDING TO 1 TO 2 FEET IN THE LATE MORNING AND AFTERNOON.
FRIDAY NIGHT
SOUTH WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING SOUTHWEST WITH GUSTS TO AROUND 25 KNOTS AFTER
MIDNIGHT. SNOW LIKELY. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET
AFTER MIDNIGHT. A SMALL CRAFT ADVISORY MAY BE NEEDED.
SATURDAY
WEST WIND UP TO 30 KNOTS. GUSTS UP TO 35 KNOTS IN THE
AFTERNOON. HEAVY FREEZING SPRAY. WAVES 5 TO 8 FEET. WAVES
OCCASIONALLY TO 10 FEET. A GALE WARNING MAY BE NEEDED.
LSZ146-191100-
PORT WING TO SAND ISLAND WI-
1127 PM CST THU DEC 18 2025
..GALE WARNING IN EFFECT UNTIL 4 AM CST FRIDAY
..HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 7 AM CST FRIDAY
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE
SATURDAY NIGHT...
REST OF TONIGHT
NORTH WIND 20 TO 25 KNOTS. GUSTS UP TO
30 KNOTS DECREASING TO 25 KNOTS TOWARD DAYBREAK. HEAVY FREEZING
SPRAY LATE IN THE EVENING. SNOW LATE IN THE EVENING. CHANCE OF
SNOW AFTER MIDNIGHT, THEN SLIGHT CHANCE OF SNOW TOWARD DAYBREAK.
WAVES 4 TO 7 FEET. WAVES OCCASIONALLY TO 9 FEET.
FRIDAY
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTHWEST 5 KNOTS EARLY IN THE AFTERNOON, THEN
BECOMING SOUTH LATE IN THE AFTERNOON. SLIGHT CHANCE OF SNOW IN
THE AFTERNOON. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 2 FEET IN THE
LATE MORNING AND AFTERNOON.
FRIDAY NIGHT
SOUTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING SOUTHWEST 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS AFTER MIDNIGHT. SNOW LIKELY. WAVES 1 TO 3 FEET BUILDING
TO 2 TO 4 FEET EARLY IN THE MORNING. A SMALL CRAFT ADVISORY MAY
BE NEEDED.
SATURDAY
WEST WIND UP TO 30 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 40 KNOTS. SLIGHT CHANCE OF SNOW IN THE MORNING.
HEAVY FREEZING SPRAY THROUGH THE DAY. WAVES 5 TO 8 FEET. WAVES
OCCASIONALLY TO 11 FEET. A GALE WARNING MAY BE NEEDED.
LSZ147-191100-
SAND ISLAND TO BAYFIELD WI-
1127 PM CST THU DEC 18 2025
..GALE WARNING IN EFFECT UNTIL 4 AM CST FRIDAY
..HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 7 AM CST FRIDAY
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE
SATURDAY NIGHT...
REST OF TONIGHT
NORTH WIND 20 TO 25 KNOTS. GUSTS UP TO
30 KNOTS DECREASING TO 25 KNOTS TOWARD DAYBREAK. HEAVY FREEZING
SPRAY LATE IN THE EVENING. SNOW LATE IN THE EVENING, THEN CHANCE
OF SNOW TOWARD DAYBREAK. WAVES 4 TO 7 FEET. WAVES OCCASIONALLY TO
9 FEET.
FRIDAY
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST 5 KNOTS EARLY IN THE AFTERNOON, THEN
BECOMING SOUTH LATE IN THE AFTERNOON. SLIGHT CHANCE OF SNOW IN
THE AFTERNOON. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 2 FEET IN THE
LATE MORNING AND AFTERNOON.
FRIDAY NIGHT
SOUTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING SOUTHWEST 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS EARLY IN THE MORNING. SNOW LIKELY. WAVES 1 TO 3 FEET.
SATURDAY
WEST WIND UP TO 30 KNOTS WITH GALES TO AROUND
40 KNOTS. SLIGHT CHANCE OF SNOW IN THE MORNING. HEAVY FREEZING
SPRAY IN THE AFTERNOON. WAVES 4 TO 6 FEET BUILDING TO 5 TO 8 FEET
IN THE LATE MORNING AND AFTERNOON. WAVES OCCASIONALLY TO 10 FEET.
A GALE WARNING MAY BE NEEDED.
LSZ150-191100-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
1127 PM CST THU DEC 18 2025
..GALE WARNING IN EFFECT UNTIL 4 AM CST FRIDAY
..HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 7 AM CST FRIDAY
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE
SATURDAY NIGHT...
REST OF TONIGHT
NORTH WIND 20 TO 25 KNOTS. GUSTS UP TO
30 KNOTS INCREASING TO 35 KNOTS AFTER MIDNIGHT, THEN DECREASING
TO 30 KNOTS TOWARD DAYBREAK. HEAVY FREEZING SPRAY THROUGH THE
NIGHT. SNOW LATE IN THE EVENING. CHANCE OF SNOW TOWARD DAYBREAK.
WAVES 6 TO 9 FEET. WAVES OCCASIONALLY TO 11 FEET.
FRIDAY
NORTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING WEST 5 KNOTS EARLY IN THE AFTERNOON, THEN
BECOMING SOUTH LATE IN THE AFTERNOON. SLIGHT CHANCE OF SNOW.
WAVES 4 TO 6 FEET SUBSIDING TO 1 TO 2 FEET. WAVES OCCASIONALLY TO
8 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
FRIDAY NIGHT
SOUTH WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING SOUTHWEST WITH GUSTS TO AROUND 30 KNOTS AFTER
MIDNIGHT. SNOW LIKELY. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET
AFTER MIDNIGHT.
SATURDAY
WEST WIND UP TO 30 KNOTS WITH GALES TO AROUND
40 KNOTS. SLIGHT CHANCE OF SNOW IN THE MORNING. HEAVY FREEZING
SPRAY IN THE AFTERNOON. WAVES 4 TO 6 FEET BUILDING TO 6 TO 9 FEET
IN THE LATE MORNING AND AFTERNOON. WAVES OCCASIONALLY TO 11 FEET.
A GALE WARNING MAY BE NEEDED.
LSZ121-191100-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
1127 PM CST THU DEC 18 2025
..GALE WARNING IN EFFECT UNTIL 4 AM CST FRIDAY
..HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 7 AM CST FRIDAY
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE
SATURDAY NIGHT...
REST OF TONIGHT
NORTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO
25 KNOTS INCREASING TO 30 KNOTS AFTER MIDNIGHT, THEN DECREASING
TO 25 KNOTS TOWARD DAYBREAK. SNOW LATE IN THE EVENING, THEN SNOW
LIKELY AFTER MIDNIGHT. CHANCE OF SNOW TOWARD DAYBREAK. WAVES 1 TO
3 FEET.
FRIDAY
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST 5 KNOTS EARLY IN THE AFTERNOON, THEN
BECOMING SOUTH LATE IN THE AFTERNOON. SLIGHT CHANCE OF SNOW IN
THE AFTERNOON. WAVES 1 TO 2 FEET.
FRIDAY NIGHT
SOUTH WIND 10 TO 15 KNOTS BECOMING SOUTHWEST
EARLY IN THE MORNING. GUSTS UP TO 20 KNOTS. SNOW LIKELY. WAVES
1 FOOT OR LESS.
SATURDAY
WEST WIND 20 TO 25 KNOTS. GUSTS UP TO 25 KNOTS
INCREASING TO 35 KNOTS. SLIGHT CHANCE OF SNOW IN THE MORNING.
WAVES 1 TO 3 FEET. A GALE WARNING MAY BE NEEDED.
LSZ148-191100-
OAK POINT TO SAXON HARBOR WI-
1127 PM CST THU DEC 18 2025
..GALE WARNING IN EFFECT UNTIL 4 AM CST FRIDAY
..HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 7 AM CST FRIDAY
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE
SATURDAY NIGHT...
REST OF TONIGHT
NORTH WIND UP TO 30 KNOTS. GUSTS UP TO
35 KNOTS DECREASING TO 30 KNOTS TOWARD DAYBREAK. HEAVY FREEZING
SPRAY THROUGH THE NIGHT. SNOW LATE IN THE EVENING. SNOW LIKELY
TOWARD DAYBREAK. WAVES 5 TO 8 FEET. WAVES OCCASIONALLY TO
11 FEET.
FRIDAY
NORTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING WEST 5 KNOTS EARLY IN THE AFTERNOON, THEN
BECOMING SOUTH LATE IN THE AFTERNOON. CHANCE OF SNOW IN THE
MORNING, THEN SLIGHT CHANCE OF SNOW IN THE AFTERNOON. WAVES 4 TO
6 FEET SUBSIDING TO 1 TO 2 FEET. WAVES OCCASIONALLY TO 8 FEET. A
SMALL CRAFT ADVISORY MAY BE NEEDED.
FRIDAY NIGHT
SOUTH WIND 15 TO 20 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE LATE EVENING AND OVERNIGHT. SNOW
LIKELY. WAVES 1 TO 3 FEET.
SATURDAY
WEST WIND UP TO 30 KNOTS WITH GALES TO AROUND
35 KNOTS. SLIGHT CHANCE OF SNOW AND LIGHT FREEZING RAIN IN THE
MORNING. 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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