347
FZUS53 KDLH 270623
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
123 AM CDT MON APR 27 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.
LSZ140-271600-
GRAND PORTAGE TO GRAND MARAIS MN-
123 AM CDT MON APR 27 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
AFTERNOON...
TODAY
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
EARLY IN THE MORNING. CHANCE OF RAIN IN THE MORNING. RAIN IN THE
AFTERNOON. PATCHY FOG IN THE LATE MORNING AND AFTERNOON. WAVES
3 TO 5 FEET. WAVES OCCASIONALLY TO 7 FEET.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHWEST WITH GUSTS TO AROUND 30 KNOTS AFTER
MIDNIGHT. PATCHY FOG THROUGH THE NIGHT. RAIN IN THE EVENING.
CHANCE OF RAIN AFTER MIDNIGHT. WAVES 4 TO 6 FEET. WAVES
OCCASIONALLY TO 7 FEET.
TUESDAY
NORTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 30 KNOTS
DECREASING TO 25 KNOTS IN THE AFTERNOON. SLIGHT CHANCE OF RAIN IN
THE MORNING. WAVES 2 TO 4 FEET. A SMALL CRAFT ADVISORY MAY BE
NEEDED.
TUESDAY NIGHT
NORTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
LSZ141-271600-
GRAND MARAIS TO TACONITE HARBOR MN-
123 AM CDT MON APR 27 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
AFTERNOON...
TODAY
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. PATCHY DENSE FOG THROUGH THE DAY. CHANCE OF RAIN EARLY
IN THE MORNING. RAIN LIKELY LATE IN THE MORNING, THEN RAIN IN THE
AFTERNOON. WAVES 3 TO 5 FEET. WAVES OCCASIONALLY TO 7 FEET.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING NORTHWEST 15 TO 20 KNOTS WITH GALES TO AROUND
35 KNOTS AFTER MIDNIGHT. PATCHY FOG THROUGH THE NIGHT. RAIN IN
THE EVENING. CHANCE OF RAIN AFTER MIDNIGHT. WAVES 3 TO 5 FEET.
WAVES OCCASIONALLY TO 7 FEET. A GALE WARNING MAY BE NEEDED.
TUESDAY
NORTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 30 KNOTS
DECREASING TO 20 KNOTS. MOSTLY SUNNY. WAVES 2 TO 4 FEET SUBSIDING
TO 1 TO 3 FEET LATE IN THE AFTERNOON.
TUESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 TO 2 FEET.
LSZ142-271600-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
123 AM CDT MON APR 27 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
AFTERNOON...
TODAY
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
UNTIL LATE AFTERNOON. PATCHY FOG THROUGH THE DAY. CHANCE OF RAIN
EARLY IN THE MORNING. RAIN IN THE LATE MORNING AND AFTERNOON.
WAVES 4 TO 6 FEET. WAVES OCCASIONALLY TO 7 FEET.
TONIGHT
NORTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHWEST 15 TO 20 KNOTS WITH GALES TO AROUND
35 KNOTS AFTER MIDNIGHT. PATCHY FOG IN THE EVENING. RAIN IN THE
EVENING, THEN CHANCE OF RAIN AFTER MIDNIGHT. WAVES 3 TO 5 FEET.
WAVES OCCASIONALLY TO 7 FEET. A GALE WARNING MAY BE NEEDED.
TUESDAY
NORTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 30 KNOTS
DECREASING TO 20 KNOTS. MOSTLY SUNNY. WAVES 2 TO 4 FEET SUBSIDING
TO 1 TO 2 FEET IN THE AFTERNOON.
TUESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR.
WAVES 1 FOOT OR LESS.
LSZ143-271600-
SILVER BAY HARBOR TO TWO HARBORS MN-
123 AM CDT MON APR 27 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
AFTERNOON...
TODAY
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
UNTIL LATE AFTERNOON. PATCHY FOG THROUGH THE DAY. RAIN LIKELY
EARLY IN THE MORNING. RAIN IN THE LATE MORNING AND AFTERNOON.
WAVES 4 TO 6 FEET. WAVES OCCASIONALLY TO 7 FEET.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHWEST WITH GUSTS TO AROUND 30 KNOTS EARLY
IN THE MORNING. PATCHY FOG IN THE EVENING. RAIN IN THE EVENING,
THEN CHANCE OF RAIN AFTER MIDNIGHT. WAVES 3 TO 5 FEET. WAVES
OCCASIONALLY TO 7 FEET.
TUESDAY
NORTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 30 KNOTS
DECREASING TO 20 KNOTS. MOSTLY SUNNY. WAVES 1 TO 3 FEET SUBSIDING
TO 1 TO 2 FEET IN THE LATE MORNING AND AFTERNOON.
TUESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 FOOT OR LESS.
LSZ144-271600-
TWO HARBORS TO DULUTH MN-
123 AM CDT MON APR 27 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
AFTERNOON...
TODAY
NORTHEAST WIND 20 TO 25 KNOTS. PATCHY FOG. RAIN. WAVES
3 TO 5 FEET. WAVES OCCASIONALLY TO 7 FEET.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHWEST 15 TO 20 KNOTS WITH GALES TO AROUND
35 KNOTS IN THE LATE EVENING AND OVERNIGHT. PATCHY FOG IN THE
EVENING. RAIN IN THE EVENING, THEN CHANCE OF RAIN AFTER MIDNIGHT.
WAVES 3 TO 5 FEET. A GALE WARNING MAY BE NEEDED.
TUESDAY
NORTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 30 KNOTS
DECREASING TO 20 KNOTS. MOSTLY SUNNY. WAVES 2 TO 4 FEET SUBSIDING
TO 1 TO 2 FEET IN THE AFTERNOON. A SMALL CRAFT ADVISORY MAY BE
NEEDED.
TUESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 FOOT OR LESS.
LSZ145-271600-
DULUTH MN TO PORT WING WI-
123 AM CDT MON APR 27 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON
TODAY
NORTHEAST WIND 20 TO 25 KNOTS. PATCHY FOG THROUGH THE
DAY. RAIN LIKELY EARLY IN THE MORNING. RAIN IN THE LATE MORNING
AND AFTERNOON. WAVES 3 TO 5 FEET. WAVES OCCASIONALLY TO 7 FEET.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST 15 TO 20 KNOTS WITH GUSTS TO AROUND
30 KNOTS EARLY IN THE MORNING. PATCHY DENSE FOG THROUGH THE
NIGHT. RAIN IN THE EVENING. CHANCE OF RAIN AFTER MIDNIGHT. WAVES
3 TO 5 FEET. WAVES OCCASIONALLY TO 7 FEET.
TUESDAY
WEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND 30 KNOTS
BECOMING NORTHWEST 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
IN THE LATE MORNING AND AFTERNOON. PARTLY SUNNY. WAVES 3 TO
5 FEET SUBSIDING TO 1 TO 2 FEET. WAVES OCCASIONALLY TO 7 FEET.
TUESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 TO 2 FEET.
LSZ146-271600-
PORT WING TO SAND ISLAND WI-
123 AM CDT MON APR 27 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON
TODAY
NORTHEAST WIND 15 TO 20 KNOTS. PATCHY FOG THROUGH THE
DAY. RAIN IN THE MORNING. RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. WAVES 3 TO 5 FEET.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS BECOMING WEST 15 TO
20 KNOTS WITH GUSTS TO AROUND 25 KNOTS AFTER MIDNIGHT. PATCHY FOG
THROUGH THE NIGHT. RAIN IN THE EVENING. CHANCE OF RAIN AFTER
MIDNIGHT. WAVES 2 TO 4 FEET.
TUESDAY
WEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS
EASING TO 10 KNOTS LATE IN THE AFTERNOON. PARTLY SUNNY. WAVES
2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET IN THE AFTERNOON.
TUESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 TO 2 FEET.
LSZ147-271600-
SAND ISLAND TO BAYFIELD WI-
123 AM CDT MON APR 27 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON
TODAY
EAST WIND 15 TO 20 KNOTS. CHANCE OF RAIN EARLY IN THE
MORNING, THEN RAIN IN THE LATE MORNING AND EARLY AFTERNOON. RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON.
PATCHY FOG IN THE LATE MORNING AND AFTERNOON. WAVES 2 TO 4 FEET.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING NORTH LATE IN
THE EVENING, THEN BECOMING NORTHWEST 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS AFTER MIDNIGHT. PATCHY FOG. CHANCE OF RAIN. WAVES
2 TO 4 FEET.
TUESDAY
WEST WIND 15 TO 20 KNOTS. GUSTS UP TO 30 KNOTS
DECREASING TO 20 KNOTS. MOSTLY SUNNY. WAVES 2 TO 4 FEET SUBSIDING
TO 1 TO 2 FEET LATE IN THE AFTERNOON.
TUESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 TO 2 FEET.
LSZ150-271600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
123 AM CDT MON APR 27 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON
TODAY
EAST WIND 15 TO 20 KNOTS. CHANCE OF RAIN EARLY IN THE
MORNING, THEN RAIN IN THE LATE MORNING AND EARLY AFTERNOON. RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON.
PATCHY FOG IN THE LATE MORNING AND AFTERNOON. WAVES 3 TO 5 FEET.
WAVES OCCASIONALLY TO 7 FEET.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHWEST 20 TO 25 KNOTS WITH GUSTS TO AROUND
30 KNOTS AFTER MIDNIGHT. PATCHY FOG THROUGH THE NIGHT. RAIN
LIKELY IN THE EVENING. CHANCE OF RAIN AFTER MIDNIGHT. WAVES 3 TO
5 FEET. WAVES OCCASIONALLY TO 7 FEET.
TUESDAY
WEST WIND 20 TO 25 KNOTS WITH GUSTS TO AROUND 30 KNOTS
EASING TO 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS LATE IN
THE AFTERNOON. MOSTLY SUNNY. WAVES 3 TO 5 FEET. WAVES
OCCASIONALLY TO 7 FEET.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST IN
THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
LSZ121-271600-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
123 AM CDT MON APR 27 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY AFTERNOON...
TODAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE MORNING AND AFTERNOON. CHANCE OF RAIN EARLY IN THE
MORNING, THEN RAIN LATE IN THE MORNING. RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. PATCHY FOG IN THE LATE
MORNING AND AFTERNOON. WAVES 2 TO 4 FEET.
TONIGHT
NORTH WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS
BECOMING NORTHWEST 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS
AFTER MIDNIGHT. PATCHY FOG IN THE EVENING. RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF
RAIN AFTER MIDNIGHT. WAVES 2 TO 4 FEET SUBSIDING TO 1 FOOT OR
LESS.
TUESDAY
WEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND 30 KNOTS
EASING TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS LATE IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
NORTHWEST WIND 5 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
LSZ148-271600-
OAK POINT TO SAXON HARBOR WI-
123 AM CDT MON APR 27 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY AFTERNOON...
TODAY
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN THE
LATE MORNING AND AFTERNOON. RAIN IN THE MORNING. RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. PATCHY FOG IN
THE LATE MORNING AND AFTERNOON. WAVES 2 TO 4 FEET.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING NORTH LATE IN
THE EVENING, THEN BECOMING NORTHWEST 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS AFTER MIDNIGHT. PATCHY FOG THROUGH THE NIGHT.
RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
CHANCE OF RAIN AFTER MIDNIGHT. WAVES 2 TO 4 FEET SUBSIDING TO
1 TO 2 FEET AFTER MIDNIGHT, THEN BUILDING TO 1 TO 3 FEET EARLY IN
THE MORNING.
TUESDAY
WEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND 30 KNOTS
EASING TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS LATE IN THE
AFTERNOON. PARTLY SUNNY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO
3 FEET IN THE AFTERNOON.
TUESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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