941
FZUS53 KDLH 120745
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
245 AM 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.
LSZ140-121600-
GRAND PORTAGE TO GRAND MARAIS MN-
245 AM CDT THU MAR 12 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
THIS EVENING...
...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH FRIDAY
MORNING...
TODAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTHEAST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE AFTERNOON. SUNNY
UNTIL LATE AFTERNOON THEN BECOMING PARTLY SUNNY. WAVES 1 TO
2 FEET.
TONIGHT
EAST WIND UP TO 30 KNOTS. GUSTS UP TO 35 KNOTS
INCREASING TO 40 KNOTS IN THE LATE EVENING AND OVERNIGHT.
FREEZING SPRAY AND BLOWING SNOW. SNOW. WAVES 4 TO 6 FEET BUILDING
TO 9 TO 14 FEET. WAVES OCCASIONALLY TO 19 FEET.
FRIDAY
NORTH WIND 20 TO 25 KNOTS WITH GALES TO AROUND 35 KNOTS
EASING TO 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS LATE IN
THE AFTERNOON. FREEZING SPRAY THROUGH THE DAY. CHANCE OF SNOW
THROUGH THE DAY. WAVES 9 TO 14 FEET SUBSIDING TO 5 TO 8 FEET.
WAVES OCCASIONALLY TO 19 FEET.
FRIDAY NIGHT
NORTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHWEST 5 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 AFTER MIDNIGHT. WAVES
OCCASIONALLY TO 7 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ141-121600-
GRAND MARAIS TO TACONITE HARBOR MN-
245 AM CDT THU MAR 12 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
THIS EVENING...
...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH FRIDAY
MORNING...
TODAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTHEAST EARLY IN
THE AFTERNOON, THEN BECOMING EAST 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS LATE IN THE AFTERNOON. CHANCE OF SNOW LATE IN THE
AFTERNOON. WAVES 1 TO 3 FEET.
TONIGHT
EAST WIND UP TO 30 KNOTS WITH GALES TO AROUND 45 KNOTS
BECOMING NORTHEAST WITH GALES TO AROUND 40 KNOTS EARLY IN THE
MORNING. BLOWING SNOW IN THE EVENING. AREAS OF BLOWING SNOW AFTER
MIDNIGHT. SNOW THROUGH THE NIGHT. WAVES 4 TO 6 FEET BUILDING TO
8 TO 13 FEET. WAVES OCCASIONALLY TO 17 FEET.
FRIDAY
NORTH WIND 20 TO 25 KNOTS WITH GALES TO AROUND 35 KNOTS
BECOMING NORTHWEST 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. CHANCE OF SNOW
THROUGH THE DAY. WAVES 8 TO 13 FEET SUBSIDING TO 6 TO 9 FEET IN
THE AFTERNOON. WAVES OCCASIONALLY TO 17 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 4 TO 6 FEET SUBSIDING TO 1 TO 3 FEET AFTER
MIDNIGHT. WAVES OCCASIONALLY TO 8 FEET. A SMALL CRAFT ADVISORY
MAY BE NEEDED.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ142-121600-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
245 AM CDT THU MAR 12 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
THIS EVENING...
...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH FRIDAY
MORNING...
TODAY
NORTHWEST WIND 5 KNOTS BECOMING EAST LATE IN THE
MORNING, THEN BECOMING SOUTHEAST EARLY IN THE AFTERNOON BECOMING
EAST 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS LATE IN THE
AFTERNOON. CHANCE OF SNOW LATE IN THE AFTERNOON. WAVES 1 TO
3 FEET.
TONIGHT
EAST WIND UP TO 30 KNOTS WITH GALES TO AROUND 40 KNOTS
BECOMING NORTHEAST WITH GALES TO AROUND 40 KNOTS EARLY IN THE
MORNING. BLOWING SNOW IN THE EVENING. PATCHY BLOWING SNOW AFTER
MIDNIGHT. SNOW THROUGH THE NIGHT. WAVES 4 TO 6 FEET BUILDING TO
7 TO 12 FEET. WAVES OCCASIONALLY TO 16 FEET.
FRIDAY
NORTH WIND 20 TO 25 KNOTS WITH GALES TO AROUND 35 KNOTS
BECOMING NORTHWEST 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. CHANCE OF SNOW
THROUGH THE DAY. WAVES 7 TO 12 FEET SUBSIDING TO 6 TO 9 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. WAVES 4 TO 6 FEET SUBSIDING TO 1 TO 2 FEET. WAVES
OCCASIONALLY TO 8 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ143-121600-
SILVER BAY HARBOR TO TWO HARBORS MN-
245 AM CDT THU MAR 12 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
THIS EVENING...
...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH FRIDAY
MORNING...
TODAY
NORTHWEST WIND 5 KNOTS BECOMING EAST LATE IN THE
MORNING, THEN RISING TO 5 TO 10 KNOTS EARLY IN THE AFTERNOON
RISING TO 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS LATE IN
THE AFTERNOON. CHANCE OF SNOW LATE IN THE AFTERNOON. WAVES 1 FOOT
OR LESS BUILDING TO 1 TO 3 FEET LATE IN THE AFTERNOON.
TONIGHT
EAST WIND 20 TO 25 KNOTS WITH GALES TO AROUND 35 KNOTS
BECOMING NORTHEAST UP TO 30 KNOTS WITH GALES TO AROUND 40 KNOTS
AFTER MIDNIGHT. BLOWING SNOW IN THE EVENING. FREEZING SPRAY AND
PATCHY BLOWING SNOW AFTER MIDNIGHT. SNOW THROUGH THE NIGHT. WAVES
3 TO 5 FEET BUILDING TO 8 TO 11 FEET. WAVES OCCASIONALLY TO
14 FEET.
FRIDAY
NORTH WIND 20 TO 25 KNOTS WITH GALES TO AROUND 35 KNOTS
BECOMING NORTHWEST 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. CHANCE OF SNOW
THROUGH THE DAY. WAVES 8 TO 11 FEET SUBSIDING TO 6 TO 9 FEET IN
THE AFTERNOON. WAVES OCCASIONALLY TO 14 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 4 TO 6 FEET SUBSIDING TO 1 TO 2 FEET. WAVES
OCCASIONALLY TO 8 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ144-121600-
TWO HARBORS TO DULUTH MN-
245 AM CDT THU MAR 12 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
THIS EVENING...
...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH FRIDAY
MORNING...
TODAY
NORTHWEST WIND 5 KNOTS BECOMING EAST IN THE LATE MORNING
AND EARLY AFTERNOON, THEN RISING TO 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS LATE IN THE AFTERNOON. CHANCE OF SNOW LATE IN THE
AFTERNOON. WAVES 1 FOOT OR LESS BUILDING TO 1 TO 3 FEET LATE IN
THE AFTERNOON.
TONIGHT
EAST WIND 20 TO 25 KNOTS WITH GUSTS TO AROUND 30 KNOTS
BECOMING NORTHEAST UP TO 30 KNOTS WITH GALES TO AROUND 35 KNOTS
AFTER MIDNIGHT. AREAS OF BLOWING SNOW IN THE EVENING, THEN PATCHY
BLOWING SNOW AFTER MIDNIGHT. SNOW AND SLIGHT CHANCE OF RAIN IN
THE EVENING, THEN SNOW LIKELY AFTER MIDNIGHT. WAVES 7 TO 10 FEET.
WAVES OCCASIONALLY TO 12 FEET.
FRIDAY
NORTHWEST WIND 20 TO 25 KNOTS WITH GALES TO AROUND
35 KNOTS EASING TO 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS
LATE IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. CHANCE OF
SNOW THROUGH THE DAY. WAVES 6 TO 9 FEET SUBSIDING TO 4 TO 7 FEET
IN THE AFTERNOON. WAVES OCCASIONALLY TO 12 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. WAVES OCCASIONALLY TO 7 FEET. A SMALL CRAFT ADVISORY
MAY BE NEEDED.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ145-121600-
DULUTH MN TO PORT WING WI-
245 AM CDT THU MAR 12 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
FRIDAY EVENING...
TODAY
WEST WIND 5 KNOTS BECOMING SOUTHEAST IN THE LATE MORNING
AND EARLY AFTERNOON, THEN RISING TO 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS LATE IN THE AFTERNOON. CHANCE OF SNOW LATE IN THE
AFTERNOON. WAVES 1 FOOT OR LESS BUILDING TO 1 TO 3 FEET LATE IN
THE AFTERNOON.
TONIGHT
SOUTHEAST WIND 20 TO 25 KNOTS WITH GUSTS TO AROUND
30 KNOTS BECOMING NORTH WITH GALES TO AROUND 35 KNOTS AFTER
MIDNIGHT. SNOW AND SLIGHT CHANCE OF RAIN IN THE EVENING, THEN
SNOW LIKELY AFTER MIDNIGHT. WAVES 4 TO 6 FEET BUILDING TO 7 TO
10 FEET. WAVES OCCASIONALLY TO 13 FEET. A GALE WARNING MAY BE
NEEDED.
FRIDAY
NORTHWEST WIND 20 TO 25 KNOTS WITH GALES TO AROUND
35 KNOTS EASING TO 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS
LATE IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. CHANCE OF
SNOW THROUGH THE DAY. WAVES 7 TO 10 FEET SUBSIDING TO 4 TO 7 FEET
IN THE AFTERNOON. WAVES OCCASIONALLY TO 14 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. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET AFTER
MIDNIGHT. WAVES OCCASIONALLY TO 7 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ146-121600-
PORT WING TO SAND ISLAND WI-
245 AM CDT THU MAR 12 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
FRIDAY EVENING...
TODAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTH LATE IN THE
MORNING, THEN BECOMING SOUTHEAST EARLY IN THE AFTERNOON BECOMING
EAST 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS LATE IN THE
AFTERNOON. SLIGHT CHANCE OF SNOW LATE IN THE AFTERNOON. WAVES
1 TO 2 FEET.
TONIGHT
SOUTHEAST WIND 20 TO 25 KNOTS WITH GUSTS TO AROUND
30 KNOTS BECOMING NORTHEAST UP TO 30 KNOTS WITH GALES TO AROUND
40 KNOTS EARLY IN THE MORNING. SNOW AND SLIGHT CHANCE OF RAIN.
WAVES 3 TO 5 FEET BUILDING TO 7 TO 10 FEET. WAVES OCCASIONALLY TO
13 FEET. A GALE WARNING MAY BE NEEDED.
FRIDAY
NORTH WIND UP TO 30 KNOTS WITH GALES TO AROUND 35 KNOTS
BECOMING NORTHWEST 5 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS.
FREEZING SPRAY IN THE MORNING. CHANCE OF SNOW THROUGH THE DAY.
WAVES 8 TO 11 FEET SUBSIDING TO 6 TO 9 FEET IN THE AFTERNOON.
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 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 2 FEET EARLY IN THE MORNING. WAVES
OCCASIONALLY TO 8 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ147-121600-
SAND ISLAND TO BAYFIELD WI-
245 AM CDT THU MAR 12 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
FRIDAY EVENING...
TODAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST LATE IN
THE MORNING, THEN BECOMING SOUTHEAST EARLY IN THE AFTERNOON
BECOMING EAST 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS LATE
IN THE AFTERNOON. CHANCE OF SNOW LATE IN THE AFTERNOON. WAVES
1 TO 2 FEET.
TONIGHT
SOUTHEAST WIND UP TO 30 KNOTS WITH GALES TO AROUND
35 KNOTS BECOMING NORTHEAST WITH GALES TO AROUND 40 KNOTS EARLY
IN THE MORNING. SNOW THROUGH THE NIGHT. SLIGHT CHANCE OF RAIN
AFTER MIDNIGHT. WAVES 4 TO 6 FEET BUILDING TO 6 TO 9 FEET EARLY
IN THE MORNING. WAVES OCCASIONALLY TO 12 FEET. A GALE WARNING MAY
BE NEEDED.
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. CHANCE OF SNOW THROUGH THE DAY. WAVES 8 TO
11 FEET SUBSIDING TO 5 TO 8 FEET LATE IN THE AFTERNOON. 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 EASING TO 5 KNOTS EARLY IN THE MORNING. MOSTLY
CLOUDY IN THE EVENING THEN BECOMING PARTLY CLOUDY. WAVES 4 TO
6 FEET SUBSIDING TO 1 TO 2 FEET EARLY IN THE MORNING. WAVES
OCCASIONALLY TO 8 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ150-121600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
245 AM CDT THU MAR 12 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
MORNING...
TODAY
WEST WIND 5 TO 10 KNOTS BECOMING SOUTHEAST EARLY IN THE
AFTERNOON, THEN BECOMING EAST 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS LATE IN THE AFTERNOON. SLIGHT CHANCE OF SNOW LATE IN THE
AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHEAST WIND UP TO 30 KNOTS WITH GALES TO AROUND
40 KNOTS BECOMING NORTHEAST WITH GALES TO AROUND 40 KNOTS EARLY
IN THE MORNING. SNOW. WAVES 3 TO 5 FEET BUILDING TO 8 TO 11 FEET.
WAVES OCCASIONALLY TO 15 FEET.
FRIDAY
NORTH 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. CHANCE OF SNOW
THROUGH THE DAY. WAVES 9 TO 14 FEET SUBSIDING TO 8 TO 11 FEET
LATE IN THE AFTERNOON. WAVES OCCASIONALLY TO 18 FEET.
FRIDAY NIGHT
NORTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS IN THE EVENING. MOSTLY CLOUDY. WAVES 5 TO 8 FEET
SUBSIDING TO 1 TO 3 FEET. WAVES OCCASIONALLY TO 11 FEET. A SMALL
CRAFT ADVISORY MAY BE NEEDED.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ148-121600-
OAK POINT TO SAXON HARBOR WI-
245 AM CDT THU MAR 12 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
FRIDAY EVENING...
TODAY
WEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST LATE IN THE
MORNING, THEN BECOMING SOUTHEAST 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS IN THE AFTERNOON. CHANCE OF SNOW LATE IN THE
AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHEAST WIND 20 TO 25 KNOTS WITH GALES TO AROUND
35 KNOTS BECOMING SOUTH 15 TO 20 KNOTS WITH GUSTS TO AROUND
30 KNOTS AFTER MIDNIGHT, THEN BECOMING NORTHWEST 20 TO 25 KNOTS
WITH GALES TO AROUND 35 KNOTS EARLY IN THE MORNING. SNOW THROUGH
THE NIGHT. SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. WAVES 3 TO
5 FEET BUILDING TO 4 TO 7 FEET EARLY IN THE MORNING. WAVES
OCCASIONALLY TO 9 FEET. A GALE WARNING MAY BE NEEDED.
FRIDAY
NORTH WIND 20 TO 25 KNOTS WITH GALES TO AROUND 35 KNOTS
BECOMING NORTHWEST 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS
LATE IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. SNOW LIKELY
IN THE MORNING, THEN CHANCE OF SNOW IN THE AFTERNOON. WAVES 8 TO
11 FEET SUBSIDING TO 6 TO 9 FEET LATE IN THE AFTERNOON. WAVES
OCCASIONALLY TO 14 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 7 FEET SUBSIDING TO 1 TO 2 FEET. WAVES
OCCASIONALLY TO 9 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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