135
FZUS53 KDLH 122258
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
558 PM CDT THU MAR 12 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.
LSZ140-130400-
GRAND PORTAGE TO GRAND MARAIS MN-
558 PM CDT THU MAR 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
..GALE WARNING IN EFFECT THROUGH FRIDAY MORNING
TONIGHT
EAST WIND UP TO 30 KNOTS WITH GALES TO AROUND 45 KNOTS
RISING TO GALES TO 35 KNOTS WITH STORM FORCE GUSTS TO AROUND
50 KNOTS AFTER MIDNIGHT. SLIGHT CHANCE OF SNOW EARLY IN THE
EVENING, THEN CHANCE OF SNOW LATE IN THE EVENING. SNOW AFTER
MIDNIGHT. FREEZING SPRAY IN THE LATE EVENING AND OVERNIGHT.
BLOWING SNOW AFTER MIDNIGHT. WAVES 2 TO 4 FEET BUILDING TO 10 TO
15 FEET. WAVES OCCASIONALLY TO 19 FEET.
FRIDAY
NORTHEAST GALES TO 35 KNOTS WITH GALES TO AROUND
45 KNOTS BECOMING NORTH 20 TO 25 KNOTS WITH GALES TO AROUND
40 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON, THEN EASING TO
10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS LATE IN THE
AFTERNOON. FREEZING SPRAY AND AREAS OF BLOWING SNOW IN THE
MORNING. SNOW LIKELY IN THE MORNING, THEN CHANCE OF SNOW IN THE
AFTERNOON. WAVES 9 TO 14 FEET SUBSIDING TO 4 TO 6 FEET. WAVES
OCCASIONALLY TO 18 FEET.
FRIDAY NIGHT
NORTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS EASING TO 5 KNOTS EARLY IN THE MORNING. PARTLY CLOUDY.
WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 2 FEET AFTER MIDNIGHT. A
SMALL CRAFT ADVISORY MAY BE NEEDED.
SATURDAY
NORTHWEST WIND 5 KNOTS BECOMING WEST LATE IN THE
MORNING, THEN BECOMING SOUTHWEST 10 TO 15 KNOTS IN THE AFTERNOON.
MOSTLY SUNNY. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ141-130400-
GRAND MARAIS TO TACONITE HARBOR MN-
558 PM CDT THU MAR 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
..GALE WARNING IN EFFECT THROUGH FRIDAY MORNING
TONIGHT
EAST WIND 20 TO 25 KNOTS WITH GALES TO AROUND 40 KNOTS
RISING TO GALES TO 35 KNOTS WITH STORM FORCE GUSTS TO AROUND
50 KNOTS IN THE LATE EVENING AND OVERNIGHT. CHANCE OF SNOW EARLY
IN THE EVENING. SNOW IN THE LATE EVENING AND OVERNIGHT. FREEZING
SPRAY IN THE LATE EVENING AND EARLY MORNING. BLOWING SNOW IN THE
LATE EVENING AND OVERNIGHT. WAVES 4 TO 6 FEET BUILDING TO 11 TO
16 FEET. WAVES OCCASIONALLY TO 20 FEET.
FRIDAY
NORTHEAST WIND UP TO 30 KNOTS WITH GALES TO AROUND
45 KNOTS BECOMING NORTH 15 TO 20 KNOTS WITH GALES TO AROUND
35 KNOTS LATE IN THE MORNING, THEN BECOMING NORTHWEST 10 TO
15 KNOTS WITH GUSTS TO AROUND 25 KNOTS IN THE AFTERNOON. FREEZING
SPRAY AND PATCHY BLOWING SNOW IN THE MORNING. SNOW IN THE
MORNING, THEN CHANCE OF SNOW IN THE AFTERNOON. WAVES 10 TO
15 FEET SUBSIDING TO 5 TO 8 FEET. WAVES OCCASIONALLY TO 19 FEET.
FRIDAY NIGHT
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS EASING TO 5 KNOTS EARLY IN THE MORNING. PARTLY
CLOUDY. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET AFTER
MIDNIGHT. A SMALL CRAFT ADVISORY MAY BE NEEDED.
SATURDAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE LATE
MORNING AND AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ142-130400-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
558 PM CDT THU MAR 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
..GALE WARNING IN EFFECT THROUGH FRIDAY MORNING
TONIGHT
EAST WIND UP TO 30 KNOTS WITH GALES TO AROUND 45 KNOTS
RISING TO GALES TO 35 KNOTS WITH STORM FORCE GUSTS TO AROUND
50 KNOTS AFTER MIDNIGHT, THEN BECOMING NORTHEAST UP TO 30 KNOTS
WITH STORM FORCE GUSTS TO AROUND 50 KNOTS LATE IN THE NIGHT.
BLOWING SNOW UNTIL EARLY MORNING. CHANCE OF SNOW EARLY IN THE
EVENING. SNOW IN THE LATE EVENING AND OVERNIGHT. WAVES 4 TO
6 FEET BUILDING TO 11 TO 16 FEET. WAVES OCCASIONALLY TO 20 FEET.
FRIDAY
NORTH WIND 20 TO 25 KNOTS WITH GALES TO AROUND 40 KNOTS
BECOMING NORTHWEST 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
IN THE AFTERNOON. SNOW IN THE MORNING, THEN CHANCE OF SNOW IN THE
AFTERNOON. WAVES 10 TO 15 FEET SUBSIDING TO 6 TO 9 FEET. WAVES
OCCASIONALLY TO 20 FEET.
FRIDAY NIGHT
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS EASING TO 5 KNOTS EARLY IN THE MORNING. PARTLY
CLOUDY. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 2 FEET. WAVES
OCCASIONALLY TO 7 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
SATURDAY
WEST WIND 5 KNOTS BECOMING SOUTH LATE IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ143-130400-
SILVER BAY HARBOR TO TWO HARBORS MN-
558 PM CDT THU MAR 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
...GALE WARNING IN EFFECT FROM 10 PM CDT THIS EVENING THROUGH
FRIDAY MORNING...
TONIGHT
EAST WIND 20 TO 25 KNOTS WITH GALES TO AROUND 35 KNOTS
RISING TO GALES TO 35 KNOTS WITH GALES TO AROUND 45 KNOTS IN THE
LATE EVENING AND EARLY MORNING, THEN BECOMING NORTHEAST UP TO
30 KNOTS WITH GALES TO AROUND 45 KNOTS LATE IN THE NIGHT. BLOWING
SNOW UNTIL EARLY MORNING. SNOW THROUGH THE NIGHT. WAVES 4 TO
6 FEET BUILDING TO 10 TO 15 FEET. WAVES OCCASIONALLY TO 20 FEET.
FRIDAY
NORTH WIND UP TO 30 KNOTS WITH GALES TO AROUND 40 KNOTS
BECOMING NORTHWEST 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS.
SNOW IN THE MORNING, THEN CHANCE OF SNOW IN THE AFTERNOON. WAVES
10 TO 15 FEET SUBSIDING TO 4 TO 7 FEET. WAVES OCCASIONALLY TO
19 FEET.
FRIDAY NIGHT
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS EASING TO 5 KNOTS EARLY IN THE MORNING. PARTLY
CLOUDY IN THE EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 3 TO
5 FEET SUBSIDING TO 1 TO 2 FEET. WAVES OCCASIONALLY TO 7 FEET. A
SMALL CRAFT ADVISORY MAY BE NEEDED.
SATURDAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ144-130400-
TWO HARBORS TO DULUTH MN-
558 PM CDT THU MAR 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
...GALE WARNING IN EFFECT FROM 10 PM CDT THIS EVENING THROUGH
FRIDAY MORNING...
TONIGHT
EAST WIND UP TO 30 KNOTS WITH GALES TO AROUND 45 KNOTS
BECOMING NORTHEAST WITH GALES TO AROUND 40 KNOTS LATE IN THE
NIGHT. BLOWING SNOW UNTIL EARLY MORNING. SNOW THROUGH THE NIGHT.
WAVES 4 TO 6 FEET BUILDING TO 7 TO 12 FEET. WAVES OCCASIONALLY TO
16 FEET.
FRIDAY
NORTH WIND UP TO 30 KNOTS WITH GALES TO AROUND 40 KNOTS
BECOMING NORTHWEST 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
IN THE AFTERNOON. SNOW LIKELY IN THE MORNING, THEN CHANCE OF SNOW
IN THE AFTERNOON. WAVES 7 TO 12 FEET SUBSIDING TO 5 TO 8 FEET IN
THE AFTERNOON. WAVES OCCASIONALLY TO 15 FEET.
FRIDAY NIGHT
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS EASING TO 5 KNOTS EARLY IN THE MORNING. PARTLY
CLOUDY IN THE EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 3 TO
5 FEET SUBSIDING TO 1 TO 3 FEET AFTER MIDNIGHT. A SMALL CRAFT
ADVISORY MAY BE NEEDED.
SATURDAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ145-130400-
DULUTH MN TO PORT WING WI-
558 PM CDT THU MAR 12 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING
TONIGHT
EAST WIND UP TO 30 KNOTS WITH GALES TO AROUND 35 KNOTS
BECOMING NORTHEAST WITH GALES TO AROUND 40 KNOTS LATE IN THE
NIGHT. PATCHY BLOWING SNOW EARLY IN THE EVENING. BLOWING SNOW
LATE IN THE EVENING, THEN PATCHY BLOWING SNOW AFTER MIDNIGHT.
SNOW THROUGH THE NIGHT. WAVES 4 TO 7 FEET BUILDING TO 7 TO
10 FEET LATE IN THE NIGHT. WAVES OCCASIONALLY TO 14 FEET.
FRIDAY
NORTH WIND UP TO 30 KNOTS WITH GALES TO AROUND 40 KNOTS
BECOMING NORTHWEST 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
IN THE AFTERNOON. CHANCE OF SNOW THROUGH THE DAY. WAVES 7 TO
12 FEET SUBSIDING TO 3 TO 5 FEET. WAVES OCCASIONALLY TO 15 FEET.
A GALE WARNING MAY BE NEEDED.
FRIDAY NIGHT
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS BECOMING WEST 5 KNOTS EARLY IN THE MORNING.
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY CLOUDY. WAVES
2 TO 4 FEET SUBSIDING TO 1 TO 2 FEET AFTER MIDNIGHT.
SATURDAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH LATE IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ146-130400-
PORT WING TO SAND ISLAND WI-
558 PM CDT THU MAR 12 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING
TONIGHT
EAST WIND UP TO 30 KNOTS WITH GALES TO AROUND 40 KNOTS
BECOMING NORTHEAST WITH GALES TO AROUND 40 KNOTS LATE IN THE
NIGHT. SNOW. WAVES 2 TO 4 FEET BUILDING TO 8 TO 11 FEET. WAVES
OCCASIONALLY TO 14 FEET.
FRIDAY
NORTH WIND UP TO 30 KNOTS WITH GALES TO AROUND 35 KNOTS
BECOMING NORTHWEST 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS
EARLY IN THE AFTERNOON, THEN EASING TO 5 TO 15 KNOTS WITH GUSTS
TO AROUND 20 KNOTS LATE IN THE AFTERNOON. SNOW IN THE MORNING,
THEN CHANCE OF SNOW IN THE AFTERNOON. WAVES 7 TO 12 FEET
SUBSIDING TO 4 TO 6 FEET. WAVES OCCASIONALLY TO 16 FEET. A GALE
WARNING MAY BE NEEDED.
FRIDAY NIGHT
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS EASING TO 5 KNOTS EARLY IN THE MORNING. PARTLY
CLOUDY IN THE EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 3 TO
5 FEET SUBSIDING TO 1 TO 3 FEET AFTER MIDNIGHT.
SATURDAY
SOUTHWEST WIND 5 KNOTS. MOSTLY SUNNY. WAVES 1 FOOT OR
LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ147-130400-
SAND ISLAND TO BAYFIELD WI-
558 PM CDT THU MAR 12 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING
TONIGHT
EAST WIND UP TO 30 KNOTS WITH GALES TO AROUND 40 KNOTS
BECOMING NORTHEAST WITH GALES TO AROUND 40 KNOTS LATE IN THE
NIGHT. CHANCE OF SNOW EARLY IN THE EVENING, THEN SNOW IN THE LATE
EVENING AND OVERNIGHT. WAVES 2 TO 4 FEET BUILDING TO 7 TO
10 FEET. WAVES OCCASIONALLY TO 14 FEET.
FRIDAY
NORTH WIND UP TO 30 KNOTS WITH GALES TO AROUND 40 KNOTS
BECOMING NORTHWEST 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS
IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. SNOW IN THE
MORNING, THEN SNOW LIKELY IN THE AFTERNOON. WAVES 7 TO 12 FEET
SUBSIDING TO 4 TO 6 FEET. WAVES OCCASIONALLY TO 16 FEET. A GALE
WARNING MAY BE NEEDED.
FRIDAY NIGHT
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS EASING TO 5 KNOTS EARLY IN THE MORNING. PARTLY
CLOUDY IN THE EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 3 TO
5 FEET SUBSIDING TO 1 TO 3 FEET AFTER MIDNIGHT.
SATURDAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH LATE IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ150-130400-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
558 PM CDT THU MAR 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT FRIDAY
...GALE WARNING IN EFFECT FROM 1 AM CDT FRIDAY THROUGH FRIDAY
MORNING...
TONIGHT
EAST WIND UP TO 30 KNOTS WITH GALES TO AROUND 40 KNOTS
RISING TO GALES TO 35 KNOTS WITH GALES TO AROUND 45 KNOTS AFTER
MIDNIGHT. CHANCE OF SNOW EARLY IN THE EVENING, THEN SNOW IN THE
LATE EVENING AND OVERNIGHT. WAVES 4 TO 6 FEET BUILDING TO 9 TO
14 FEET. WAVES OCCASIONALLY TO 19 FEET.
FRIDAY
NORTHEAST WIND UP TO 30 KNOTS WITH GALES TO AROUND
40 KNOTS BECOMING NORTHWEST 20 TO 25 KNOTS WITH GUSTS TO AROUND
30 KNOTS IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. SNOW IN
THE MORNING, THEN SNOW LIKELY IN THE AFTERNOON. WAVES 10 TO
15 FEET SUBSIDING TO 6 TO 9 FEET. WAVES OCCASIONALLY TO 19 FEET.
FRIDAY NIGHT
NORTHWEST WIND 15 TO 20 KNOTS EASING TO 5 KNOTS
EARLY IN THE MORNING. PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. WAVES 4 TO 6 FEET SUBSIDING TO 1 TO 3 FEET. WAVES
OCCASIONALLY TO 8 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
SATURDAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTH LATE IN
THE AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ148-130400-
OAK POINT TO SAXON HARBOR WI-
558 PM CDT THU MAR 12 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING
TONIGHT
EAST WIND 20 TO 25 KNOTS WITH GALES TO AROUND 35 KNOTS
BECOMING NORTHEAST WITH GALES TO AROUND 35 KNOTS LATE IN THE
NIGHT. SNOW LIKELY EARLY IN THE EVENING, THEN SNOW IN THE LATE
EVENING AND OVERNIGHT. WAVES 1 TO 3 FEET BUILDING TO 4 TO 7 FEET
IN THE LATE EVENING AND OVERNIGHT. WAVES OCCASIONALLY TO 9 FEET.
FRIDAY
NORTHEAST GALES TO 35 KNOTS BECOMING NORTH UP TO
30 KNOTS WITH GALES TO AROUND 40 KNOTS LATE IN THE MORNING, THEN
BECOMING NORTHWEST 15 TO 20 KNOTS WITH GUSTS TO AROUND 30 KNOTS
IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. SNOW IN THE
MORNING, THEN SNOW LIKELY IN THE AFTERNOON. WAVES 7 TO 12 FEET
SUBSIDING TO 5 TO 8 FEET LATE IN THE AFTERNOON. WAVES
OCCASIONALLY TO 16 FEET. A GALE WARNING MAY BE NEEDED.
FRIDAY NIGHT
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS BECOMING WEST 5 KNOTS EARLY IN THE MORNING.
MOSTLY CLOUDY. WAVES 4 TO 6 FEET SUBSIDING TO 1 TO 3 FEET. WAVES
OCCASIONALLY TO 8 FEET.
SATURDAY
SOUTHWEST WIND 5 KNOTS. MOSTLY SUNNY. WAVES 1 TO
2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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