552
FZUS53 KDLH 121118
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
617 AM CDT SUN JUL 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-
617 AM CDT SUN JUL 12 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH THIS EVENING...
TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE LATE MORNING AND AFTERNOON. SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE MORNING. WAVES
1 TO 3 FEET BUILDING TO 2 TO 4 FEET IN THE AFTERNOON.
TONIGHT
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY. WAVES 2 TO
4 FEET.
MONDAY
SOUTHWEST WIND 20 TO 25 KNOTS WITH GUSTS TO AROUND
30 KNOTS. MOSTLY SUNNY. WAVES 1 TO 3 FEET BUILDING TO 4 TO 6 FEET
IN THE LATE MORNING AND AFTERNOON. WAVES OCCASIONALLY TO 8 FEET.
A SMALL CRAFT ADVISORY MAY BE NEEDED.
MONDAY NIGHT
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO
30 KNOTS DECREASING TO 25 KNOTS EARLY IN THE MORNING. PARTLY
CLOUDY. WAVES 4 TO 6 FEET. WAVES OCCASIONALLY TO 8 FEET. A SMALL
CRAFT ADVISORY MAY BE NEEDED.
LSZ141-121600-
GRAND MARAIS TO TACONITE HARBOR MN-
617 AM CDT SUN JUL 12 2026
TODAY
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST 10 TO 15 KNOTS
WITH GUSTS TO AROUND 20 KNOTS IN THE LATE MORNING AND AFTERNOON.
MOSTLY SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
UNTIL EARLY MORNING. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
MONDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
MOSTLY SUNNY. WAVES 1 TO 3 FEET.
MONDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS DECREASING TO 20 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY.
WAVES 1 TO 3 FEET.
LSZ142-121600-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
617 AM CDT SUN JUL 12 2026
TODAY
SOUTH WIND 5 KNOTS BECOMING SOUTHWEST WITH GUSTS TO
AROUND 20 KNOTS IN THE LATE MORNING AND AFTERNOON. MOSTLY SUNNY.
WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
UNTIL EARLY MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
MONDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
MOSTLY SUNNY. WAVES 1 TO 2 FEET.
MONDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO
25 KNOTS DECREASING TO 20 KNOTS IN THE LATE EVENING AND
OVERNIGHT. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
LSZ143-121600-
SILVER BAY HARBOR TO TWO HARBORS MN-
617 AM CDT SUN JUL 12 2026
TODAY
SOUTH WIND 5 TO 10 KNOTS BECOMING SOUTHWEST WITH GUSTS
TO AROUND 25 KNOTS IN THE LATE MORNING AND AFTERNOON. SUNNY.
WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE EVENING. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
MONDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO
2 FEET.
MONDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS DECREASING TO 20 KNOTS IN THE LATE EVENING AND
OVERNIGHT. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
LSZ144-121600-
TWO HARBORS TO DULUTH MN-
617 AM CDT SUN JUL 12 2026
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE MORNING AND AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE EVENING. CLEAR. WAVES 1 TO 2 FEET.
MONDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
SUNNY. WAVES 1 TO 2 FEET.
MONDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
LSZ145-121600-
DULUTH MN TO PORT WING WI-
617 AM CDT SUN JUL 12 2026
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
UNTIL EARLY MORNING. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
MONDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE MORNING AND AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
MONDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
LSZ146-121600-
PORT WING TO SAND ISLAND WI-
617 AM CDT SUN JUL 12 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH THIS EVENING...
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO
2 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS EASING TO 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN
THE LATE EVENING AND OVERNIGHT. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
MONDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO
2 FEET.
MONDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS DECREASING TO 20 KNOTS LATE IN THE EVENING, THEN
INCREASING TO 25 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY. WAVES 1 TO
2 FEET.
LSZ147-121600-
SAND ISLAND TO BAYFIELD WI-
617 AM CDT SUN JUL 12 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH THIS EVENING...
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS IN THE LATE EVENING AND OVERNIGHT. MOSTLY
CLEAR. WAVES 1 TO 2 FEET.
MONDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO
2 FEET.
MONDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS DECREASING TO 20 KNOTS LATE IN THE EVENING, THEN
INCREASING TO 25 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY. WAVES 1 TO
2 FEET.
LSZ150-121600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
617 AM CDT SUN JUL 12 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH THIS EVENING...
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
MOSTLY SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR. WAVES 1 TO
2 FEET.
MONDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO
2 FEET.
MONDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS DECREASING TO 20 KNOTS LATE IN THE EVENING, THEN
INCREASING TO 25 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY. WAVES 1 TO
2 FEET.
LSZ121-121600-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
617 AM CDT SUN JUL 12 2026
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE MORNING AND AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
MONDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
LSZ148-121600-
OAK POINT TO SAXON HARBOR WI-
617 AM CDT SUN JUL 12 2026
TODAY
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE MORNING AND AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
MONDAY
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS LATE
IN THE AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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