280
FZUS53 KDLH 132251
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
551 PM CDT MON APR 13 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.
LSZ140-140400-
GRAND PORTAGE TO GRAND MARAIS MN-
551 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY MORNING...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SLIGHT CHANCE OF RAIN IN THE LATE EVENING AND
OVERNIGHT. PATCHY FOG AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE MORNING. PATCHY FOG THROUGH THE DAY. CHANCE OF RAIN THROUGH
THE DAY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING NORTH
AFTER MIDNIGHT. PATCHY FOG AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
WEDNESDAY
NORTHEAST WIND 5 KNOTS BECOMING EAST IN THE LATE
MORNING AND AFTERNOON. PARTLY SUNNY. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ141-140400-
GRAND MARAIS TO TACONITE HARBOR MN-
551 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY MORNING...
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
AFTER MIDNIGHT. SLIGHT CHANCE OF RAIN UNTIL EARLY MORNING. CHANCE
OF RAIN LATE IN THE NIGHT. PATCHY FOG AFTER MIDNIGHT. WAVES 1 TO
2 FEET.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY FOG THROUGH THE
DAY. CHANCE OF RAIN THROUGH THE DAY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS BECOMING NORTHWEST AFTER
MIDNIGHT, THEN BECOMING NORTH EARLY IN THE MORNING. PATCHY FOG
AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
WEDNESDAY
EAST WIND 5 KNOTS. PARTLY SUNNY. WAVES 1 FOOT OR
LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ142-140400-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
551 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF RAIN
UNTIL EARLY MORNING. CHANCE OF RAIN LATE IN THE NIGHT. PATCHY FOG
AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY FOG THROUGH THE
DAY. CHANCE OF RAIN IN THE MORNING. SLIGHT CHANCE OF RAIN IN THE
AFTERNOON. WAVES 1 TO 3 FEET.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTH 5 KNOTS
AFTER MIDNIGHT. PATCHY FOG AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES
1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ143-140400-
SILVER BAY HARBOR TO TWO HARBORS MN-
551 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
AFTER MIDNIGHT. SLIGHT CHANCE OF RAIN THROUGH THE NIGHT. PATCHY
FOG AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS EASING TO 5 KNOTS LATE
IN THE AFTERNOON. PATCHY FOG THROUGH THE DAY. CHANCE OF RAIN IN
THE MORNING. SLIGHT CHANCE OF RAIN IN THE AFTERNOON. WAVES 1 TO
3 FEET.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS. PATCHY FOG AFTER
MIDNIGHT. WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES
1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ144-140400-
TWO HARBORS TO DULUTH MN-
551 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
AFTER MIDNIGHT. CHANCE OF RAIN IN THE EVENING, THEN SLIGHT CHANCE
OF RAIN AFTER MIDNIGHT. PATCHY FOG AFTER MIDNIGHT. WAVES 1 TO
3 FEET.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS EASING TO 5 KNOTS LATE
IN THE AFTERNOON. PATCHY FOG THROUGH THE DAY. CHANCE OF RAIN IN
THE MORNING. SLIGHT CHANCE OF RAIN IN THE AFTERNOON. WAVES 1 TO
3 FEET.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS. PATCHY FOG AFTER
MIDNIGHT. WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY IN THE
MORNING THEN BECOMING MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ145-140400-
DULUTH MN TO PORT WING WI-
551 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE EVENING AND OVERNIGHT. CHANCE OF RAIN IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. PATCHY FOG AFTER
MIDNIGHT. WAVES 1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. SLIGHT CHANCE OF RAIN
IN THE MORNING. PATCHY FOG THROUGH THE DAY. WAVES 1 TO 3 FEET.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY FOG. WAVES
1 TO 2 FEET.
WEDNESDAY
NORTHEAST WIND 10 TO 15 KNOTS. MOSTLY CLOUDY IN THE
MORNING THEN BECOMING MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ146-140400-
PORT WING TO SAND ISLAND WI-
551 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
AFTER MIDNIGHT. CHANCE OF RAIN UNTIL EARLY MORNING. SLIGHT CHANCE
OF RAIN LATE IN THE NIGHT. PATCHY FOG AFTER MIDNIGHT. WAVES 1 TO
2 FEET BUILDING TO 1 TO 3 FEET AFTER MIDNIGHT.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF RAIN IN
THE MORNING. PATCHY FOG THROUGH THE DAY. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET IN THE AFTERNOON.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS. PATCHY FOG. WAVES 1 TO
2 FEET.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY IN THE
MORNING THEN BECOMING MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ147-140400-
SAND ISLAND TO BAYFIELD WI-
551 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. CHANCE OF RAIN UNTIL
EARLY MORNING. SLIGHT CHANCE OF RAIN LATE IN THE NIGHT. PATCHY
FOG AFTER MIDNIGHT. WAVES 1 TO 2 FEET BUILDING TO 2 TO 4 FEET
AFTER MIDNIGHT.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY FOG THROUGH THE
DAY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET IN THE AFTERNOON.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS. PATCHY FOG. WAVES 1 TO
2 FEET.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES
1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ150-140400-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
551 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE EVENING AND OVERNIGHT. SLIGHT CHANCE OF RAIN EARLY IN
THE EVENING, THEN CHANCE OF RAIN IN THE LATE EVENING AND
OVERNIGHT. PATCHY FOG AFTER MIDNIGHT. WAVES 1 TO 3 FEET BUILDING
TO 2 TO 4 FEET AFTER MIDNIGHT.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE MORNING. PATCHY FOG THROUGH THE DAY. WAVES 2 TO
4 FEET SUBSIDING TO 1 TO 3 FEET LATE IN THE AFTERNOON.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS. PATCHY FOG. WAVES 1 TO
2 FEET.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES
1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ148-140400-
OAK POINT TO SAXON HARBOR WI-
551 PM CDT MON APR 13 2026
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN UNTIL
EARLY MORNING. SLIGHT CHANCE OF RAIN LATE IN THE NIGHT. PATCHY
FOG IN THE LATE EVENING AND OVERNIGHT. WAVES 1 TO 3 FEET BUILDING
TO 2 TO 4 FEET AFTER MIDNIGHT.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS BECOMING NORTH IN THE
AFTERNOON. PATCHY FOG THROUGH THE DAY. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET LATE IN THE AFTERNOON.
TUESDAY NIGHT
NORTH WIND 5 KNOTS. PATCHY DENSE FOG THROUGH THE
NIGHT. WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES
1 FOOT OR LESS.
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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