544
FZUS53 KDLH 031952
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
252 PM CDT THU SEP 3 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.
LSZ140-040400-
GRAND PORTAGE TO GRAND MARAIS MN-
252 PM CDT THU SEP 3 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH LATE FRIDAY NIGHT...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS LATE IN THE NIGHT. CHANCE OF RAIN SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO
3 FEET.
FRIDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
INCREASING TO 30 KNOTS LATE IN THE MORNING, THEN DECREASING TO
25 KNOTS IN THE AFTERNOON. CHANCE OF RAIN SHOWERS IN THE MORNING.
WAVES 1 TO 3 FEET.
FRIDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS. MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
SATURDAY
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES
1 TO 2 FEET.
LSZ141-040400-
GRAND MARAIS TO TACONITE HARBOR MN-
252 PM CDT THU SEP 3 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH LATE FRIDAY NIGHT...
TONIGHT
NORTHEAST 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. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE LATE EVENING AND OVERNIGHT. WAVES 1 TO
2 FEET BUILDING TO 1 TO 3 FEET LATE IN THE NIGHT.
FRIDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 30 KNOTS
DECREASING TO 25 KNOTS LATE IN THE AFTERNOON. CHANCE OF RAIN
SHOWERS IN THE MORNING. WAVES 1 TO 3 FEET.
FRIDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS. MOSTLY CLOUDY. WAVES 1 TO 3 FEET SUBSIDING TO 1 TO
2 FEET IN THE LATE EVENING AND OVERNIGHT.
SATURDAY
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY IN THE
MORNING THEN BECOMING MOSTLY SUNNY. WAVES 1 TO 2 FEET.
LSZ142-040400-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
252 PM CDT THU SEP 3 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH LATE FRIDAY NIGHT...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS AFTER MIDNIGHT, THEN INCREASING TO
25 KNOTS LATE IN THE NIGHT. CHANCE OF RAIN SHOWERS IN THE
EVENING. CHANCE OF THUNDERSTORMS THROUGH THE NIGHT. RAIN SHOWERS
AFTER MIDNIGHT. WAVES 1 TO 2 FEET BUILDING TO 1 TO 3 FEET AFTER
MIDNIGHT.
FRIDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
INCREASING TO 30 KNOTS LATE IN THE MORNING, THEN DECREASING TO
25 KNOTS IN THE AFTERNOON. CHANCE OF RAIN SHOWERS IN THE MORNING.
WAVES 1 TO 3 FEET.
FRIDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS. MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
SATURDAY
NORTHEAST WIND 5 KNOTS. PARTLY SUNNY. WAVES 1 TO
2 FEET.
LSZ143-040400-
SILVER BAY HARBOR TO TWO HARBORS MN-
252 PM CDT THU SEP 3 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH LATE FRIDAY NIGHT...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS. CHANCE OF RAIN SHOWERS IN THE EVENING. CHANCE OF
THUNDERSTORMS THROUGH THE NIGHT. RAIN SHOWERS AFTER MIDNIGHT.
WAVES 2 TO 4 FEET.
FRIDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
INCREASING TO 30 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON,
THEN DECREASING TO 25 KNOTS LATE IN THE AFTERNOON. CHANCE OF RAIN
SHOWERS IN THE MORNING. WAVES 2 TO 4 FEET.
FRIDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS. MOSTLY CLOUDY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO
3 FEET AFTER MIDNIGHT.
SATURDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE AFTERNOON. CLOUDY IN THE MORNING THEN BECOMING PARTLY SUNNY.
WAVES 1 TO 2 FEET.
LSZ144-040400-
TWO HARBORS TO DULUTH MN-
252 PM CDT THU SEP 3 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE FRIDAY NIGHT
TONIGHT
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO 30 KNOTS
DECREASING TO 25 KNOTS IN THE LATE EVENING AND OVERNIGHT. CHANCE
OF SHOWERS IN THE EVENING. CHANCE OF THUNDERSTORMS THROUGH THE
NIGHT. SHOWERS LIKELY AFTER MIDNIGHT. WAVES 2 TO 4 FEET.
FRIDAY
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. SLIGHT CHANCE OF RAIN SHOWERS IN THE MORNING. WAVES
2 TO 4 FEET.
FRIDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS. MOSTLY CLOUDY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO
2 FEET EARLY IN THE MORNING.
SATURDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE AFTERNOON. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
LSZ145-040400-
DULUTH MN TO PORT WING WI-
252 PM CDT THU SEP 3 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE FRIDAY NIGHT
TONIGHT
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO 30 KNOTS
DECREASING TO 20 KNOTS. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE EVENING, THEN SHOWERS LIKELY AND
CHANCE OF THUNDERSTORMS IN THE LATE EVENING AND EARLY MORNING.
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE
NIGHT. WAVES 2 TO 4 FEET.
FRIDAY
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE LATE MORNING AND AFTERNOON. SLIGHT
CHANCE OF RAIN SHOWERS IN THE MORNING. WAVES 2 TO 4 FEET.
FRIDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS. MOSTLY CLOUDY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO
2 FEET EARLY IN THE MORNING.
SATURDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE AFTERNOON. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
LSZ146-040400-
PORT WING TO SAND ISLAND WI-
252 PM CDT THU SEP 3 2026
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS AFTER MIDNIGHT. CHANCE OF SHOWERS IN THE
EVENING. CHANCE OF THUNDERSTORMS THROUGH THE NIGHT. SHOWERS AFTER
MIDNIGHT. WAVES 1 TO 3 FEET.
FRIDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE AFTERNOON. CHANCE OF SHOWERS IN THE
MORNING. WAVES 2 TO 4 FEET.
FRIDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS. MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
SATURDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE AFTERNOON. PARTLY SUNNY. WAVES 1 TO 2 FEET.
LSZ147-040400-
SAND ISLAND TO BAYFIELD WI-
252 PM CDT THU SEP 3 2026
TONIGHT
EAST WIND 5 TO 10 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS AFTER MIDNIGHT. CHANCE OF SHOWERS AND
THUNDERSTORMS THROUGH THE NIGHT. WAVES 1 TO 3 FEET.
FRIDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS
IN THE MORNING. WAVES 1 TO 3 FEET.
FRIDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 25 KNOTS EASING TO 5 KNOTS EARLY IN THE MORNING. MOSTLY
CLOUDY. WAVES 1 TO 3 FEET.
SATURDAY
NORTHEAST WIND 5 KNOTS. MOSTLY CLOUDY IN THE MORNING
THEN BECOMING MOSTLY SUNNY. WAVES 1 TO 2 FEET.
LSZ150-040400-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
252 PM CDT THU SEP 3 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
TONIGHT
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 35 KNOTS
DECREASING TO 20 KNOTS. CHANCE OF SHOWERS IN THE EVENING. CHANCE
OF THUNDERSTORMS THROUGH THE NIGHT. SHOWERS AFTER MIDNIGHT. WAVES
2 TO 4 FEET.
FRIDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE LATE MORNING AND AFTERNOON. SLIGHT
CHANCE OF SHOWERS IN THE MORNING. WAVES 2 TO 4 FEET.
FRIDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS. MOSTLY CLOUDY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO
3 FEET AFTER MIDNIGHT.
SATURDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
LATE IN THE AFTERNOON. MOSTLY CLOUDY IN THE MORNING THEN BECOMING
MOSTLY SUNNY. WAVES 1 TO 2 FEET.
LSZ121-040400-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
252 PM CDT THU SEP 3 2026
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 35 KNOTS.
CHANCE OF SHOWERS IN THE EVENING. CHANCE OF THUNDERSTORMS THROUGH
THE NIGHT. SHOWERS AFTER MIDNIGHT. WAVES 2 TO 4 FEET SUBSIDING TO
1 TO 2 FEET LATE IN THE NIGHT.
FRIDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
SLIGHT CHANCE OF SHOWERS. WAVES 1 TO 3 FEET BUILDING TO 2 TO
4 FEET LATE IN THE AFTERNOON.
FRIDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS EASING TO 5 KNOTS EARLY IN THE MORNING. SLIGHT
CHANCE OF SHOWERS IN THE EVENING. WAVES 2 TO 4 FEET SUBSIDING TO
1 TO 3 FEET AFTER MIDNIGHT.
SATURDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
LATE IN THE AFTERNOON. PARTLY SUNNY. WAVES 1 TO 2 FEET.
LSZ148-040400-
OAK POINT TO SAXON HARBOR WI-
252 PM CDT THU SEP 3 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
TONIGHT
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 35 KNOTS. CHANCE
OF SHOWERS IN THE EVENING. CHANCE OF THUNDERSTORMS THROUGH THE
NIGHT. SHOWERS AFTER MIDNIGHT. WAVES 2 TO 4 FEET SUBSIDING TO
1 TO 2 FEET LATE IN THE NIGHT.
FRIDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
SLIGHT CHANCE OF SHOWERS. WAVES 1 TO 3 FEET BUILDING TO 2 TO
4 FEET LATE IN THE AFTERNOON.
FRIDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS EASING TO 5 KNOTS EARLY IN THE MORNING. MOSTLY
CLOUDY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET AFTER
MIDNIGHT.
SATURDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
LATE IN THE AFTERNOON. MOSTLY CLOUDY IN THE MORNING THEN BECOMING
MOSTLY SUNNY. WAVES 1 TO 2 FEET.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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