505
FZUS53 KDLH 072200
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
500 PM CDT MON SEP 7 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.
LSZ140-080400-
GRAND PORTAGE TO GRAND MARAIS MN-
500 PM CDT MON SEP 7 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT TUESDAY
...GALE WARNING IN EFFECT FROM 4 AM CDT TUESDAY THROUGH TUESDAY
AFTERNOON...
...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY
AFTERNOON...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTHEAST 15 TO 20 KNOTS WITH GUSTS TO AROUND
30 KNOTS AFTER MIDNIGHT. CHANCE OF SHOWERS AFTER MIDNIGHT. SLIGHT
CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. SHOWERS LATE IN THE
NIGHT. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET LATE IN THE
NIGHT.
TUESDAY
SOUTH WIND 20 TO 25 KNOTS. GUSTS UP TO 35 KNOTS
DECREASING TO 30 KNOTS LATE IN THE AFTERNOON. RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING, THEN CHANCE OF
SPRINKLES IN THE AFTERNOON. WAVES 4 TO 7 FEET SUBSIDING TO 3 TO
5 FEET LATE IN THE AFTERNOON. WAVES OCCASIONALLY TO 9 FEET.
TUESDAY NIGHT
SOUTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO
AROUND 30 KNOTS. SLIGHT CHANCE OF SHOWERS IN THE EVENING. WAVES
2 TO 4 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
WEDNESDAY
WEST WIND UP TO 30 KNOTS. GUSTS UP TO 35 KNOTS
INCREASING TO 40 KNOTS EARLY IN THE AFTERNOON, THEN DECREASING TO
35 KNOTS LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES 5 TO 8 FEET.
WAVES OCCASIONALLY TO 10 FEET. A GALE WARNING MAY BE NEEDED.
LSZ141-080400-
GRAND MARAIS TO TACONITE HARBOR MN-
500 PM CDT MON SEP 7 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING
...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY
AFTERNOON...
TONIGHT
EAST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND 25 KNOTS
BECOMING SOUTHEAST 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS
LATE IN THE NIGHT. SLIGHT CHANCE OF SHOWERS IN THE EVENING, THEN
SHOWERS AND CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO
2 FEET.
TUESDAY
SOUTH WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS IN THE AFTERNOON. SHOWERS AND CHANCE OF
THUNDERSTORMS IN THE MORNING, THEN CHANCE OF SPRINKLES IN THE
AFTERNOON. WAVES 1 TO 3 FEET.
TUESDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY IN
THE EVENING THEN CLEARING. WAVES 1 TO 3 FEET.
WEDNESDAY
WEST WIND 20 TO 25 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 35 KNOTS LATE IN THE MORNING, THEN INCREASING TO
40 KNOTS EARLY IN THE AFTERNOON DECREASING TO 35 KNOTS LATE IN
THE AFTERNOON. MOSTLY SUNNY. WAVES 4 TO 6 FEET. WAVES
OCCASIONALLY TO 7 FEET. A GALE WARNING MAY BE NEEDED.
LSZ142-080400-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
500 PM CDT MON SEP 7 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT TUESDAY THROUGH
WEDNESDAY MORNING...
...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY
AFTERNOON...
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTH WITH GUSTS TO AROUND 20 KNOTS LATE IN THE
NIGHT. CHANCE OF SHOWERS LATE IN THE EVENING. SHOWERS AND CHANCE
OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
SOUTH WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SHOWERS AND CHANCE OF THUNDERSTORMS IN THE MORNING,
THEN CHANCE OF SHOWERS IN THE AFTERNOON. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS EARLY IN THE MORNING. PARTLY
CLOUDY. WAVES 1 TO 2 FEET.
WEDNESDAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
30 KNOTS RISING TO 20 TO 25 KNOTS WITH GALES TO AROUND 40 KNOTS
IN THE LATE MORNING AND AFTERNOON. MOSTLY SUNNY. WAVES 1 TO
2 FEET BUILDING TO 2 TO 4 FEET IN THE LATE MORNING AND AFTERNOON.
A GALE WARNING MAY BE NEEDED.
LSZ143-080400-
SILVER BAY HARBOR TO TWO HARBORS MN-
500 PM CDT MON SEP 7 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT TUESDAY THROUGH
WEDNESDAY MORNING...
...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY
AFTERNOON...
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTH WITH GUSTS TO AROUND 20 KNOTS LATE IN THE
NIGHT. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS LATE
IN THE EVENING. SHOWERS AND CHANCE OF THUNDERSTORMS AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
TUESDAY
SOUTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SHOWERS AND CHANCE OF THUNDERSTORMS IN THE MORNING,
THEN CHANCE OF SPRINKLES IN THE AFTERNOON. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS EARLY IN THE MORNING. MOSTLY
CLEAR. WAVES 1 TO 2 FEET.
WEDNESDAY
WEST WIND 20 TO 25 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 35 KNOTS IN THE LATE MORNING AND AFTERNOON. MOSTLY
SUNNY. WAVES 1 TO 3 FEET BUILDING TO 3 TO 5 FEET IN THE LATE
MORNING AND AFTERNOON. A GALE WARNING MAY BE NEEDED.
LSZ144-080400-
TWO HARBORS TO DULUTH MN-
500 PM CDT MON SEP 7 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT TUESDAY THROUGH
WEDNESDAY MORNING...
...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY
AFTERNOON...
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTH 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS LATE IN THE NIGHT. SLIGHT
CHANCE OF SHOWERS EARLY IN THE EVENING, THEN SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE EVENING. SHOWERS AND
CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
SOUTH WIND 10 TO 15 KNOTS BECOMING SOUTHWEST LATE IN
THE AFTERNOON. GUSTS UP TO 20 KNOTS. SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS IN THE MORNING, THEN CHANCE OF SHOWERS IN THE
AFTERNOON. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS EARLY IN THE MORNING. PARTLY
CLOUDY. WAVES 1 TO 2 FEET.
WEDNESDAY
WEST WIND 20 TO 25 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 35 KNOTS IN THE LATE MORNING AND AFTERNOON. SUNNY.
WAVES 3 TO 5 FEET. A GALE WARNING MAY BE NEEDED.
LSZ145-080400-
DULUTH MN TO PORT WING WI-
500 PM CDT MON SEP 7 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT TUESDAY THROUGH
WEDNESDAY MORNING...
...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY
AFTERNOON...
TONIGHT
EAST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS
BECOMING SOUTH 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS AFTER
MIDNIGHT. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
LATE IN THE EVENING. SHOWERS AND CHANCE OF THUNDERSTORMS AFTER
MIDNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS LATE IN THE AFTERNOON. CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE MORNING. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS EARLY IN THE MORNING. PARTLY
CLOUDY. WAVES 1 TO 2 FEET.
WEDNESDAY
WEST WIND 20 TO 25 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 35 KNOTS IN THE LATE MORNING AND AFTERNOON. SUNNY.
WAVES 4 TO 6 FEET. WAVES OCCASIONALLY TO 7 FEET. A GALE WARNING
MAY BE NEEDED.
LSZ146-080400-
PORT WING TO SAND ISLAND WI-
500 PM CDT MON SEP 7 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT TUESDAY THROUGH
WEDNESDAY MORNING...
...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY
AFTERNOON...
TONIGHT
EAST WIND 5 TO 10 KNOTS BECOMING SOUTH WITH GUSTS TO
AROUND 20 KNOTS AFTER MIDNIGHT. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS LATE IN THE EVENING. SHOWERS AND CHANCE
OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
TUESDAY
SOUTH WIND 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS
BECOMING SOUTHWEST WITH GUSTS TO AROUND 25 KNOTS IN THE LATE
MORNING AND AFTERNOON. SHOWERS AND CHANCE OF THUNDERSTORMS IN THE
MORNING. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS IN THE LATE EVENING AND
OVERNIGHT. MOSTLY CLOUDY IN THE EVENING THEN CLEARING. WAVES 1 TO
2 FEET.
WEDNESDAY
WEST WIND 20 TO 25 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 35 KNOTS IN THE LATE MORNING AND AFTERNOON. SUNNY.
WAVES 4 TO 6 FEET. WAVES OCCASIONALLY TO 8 FEET. A GALE WARNING
MAY BE NEEDED.
LSZ147-080400-
SAND ISLAND TO BAYFIELD WI-
500 PM CDT MON SEP 7 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT TUESDAY THROUGH
WEDNESDAY MORNING...
...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY
AFTERNOON...
TONIGHT
EAST WIND 5 KNOTS BECOMING SOUTH WITH GUSTS TO AROUND
20 KNOTS IN THE LATE EVENING AND OVERNIGHT. SLIGHT CHANCE OF
SHOWERS IN THE EVENING, THEN SHOWERS AND CHANCE OF THUNDERSTORMS
AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
TUESDAY
SOUTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS. SHOWERS AND CHANCE OF THUNDERSTORMS IN THE MORNING.
WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO
AROUND 25 KNOTS BECOMING WEST 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS EARLY IN THE MORNING. MOSTLY CLOUDY IN THE EVENING THEN
CLEARING. WAVES 1 TO 2 FEET.
WEDNESDAY
WEST WIND 20 TO 25 KNOTS. GUSTS UP TO 30 KNOTS
INCREASING TO 40 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON,
THEN DECREASING TO 35 KNOTS LATE IN THE AFTERNOON. SUNNY. WAVES
4 TO 6 FEET. WAVES OCCASIONALLY TO 7 FEET. A GALE WARNING MAY BE
NEEDED.
LSZ150-080400-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
500 PM CDT MON SEP 7 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT TUESDAY THROUGH
WEDNESDAY MORNING...
...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY
AFTERNOON...
TONIGHT
EAST WIND 5 TO 10 KNOTS BECOMING SOUTH 10 TO 15 KNOTS
WITH GUSTS TO AROUND 25 KNOTS IN THE LATE EVENING AND OVERNIGHT.
SLIGHT CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS AND CHANCE
OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
SOUTH WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
INCREASING TO 30 KNOTS EARLY IN THE AFTERNOON, THEN DECREASING TO
25 KNOTS LATE IN THE AFTERNOON. SHOWERS AND CHANCE OF
THUNDERSTORMS IN THE MORNING. WAVES 1 TO 3 FEET.
TUESDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS. MOSTLY CLOUDY IN THE EVENING THEN CLEARING. WAVES 1 TO
3 FEET.
WEDNESDAY
WEST WIND 20 TO 25 KNOTS. GUSTS UP TO 35 KNOTS
INCREASING TO 40 KNOTS IN THE LATE MORNING AND AFTERNOON. SUNNY.
WAVES 2 TO 4 FEET BUILDING TO 4 TO 7 FEET IN THE LATE MORNING AND
AFTERNOON. WAVES OCCASIONALLY TO 9 FEET. A GALE WARNING MAY BE
NEEDED.
LSZ121-080400-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
500 PM CDT MON SEP 7 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT TUESDAY THROUGH
WEDNESDAY MORNING...
...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY
AFTERNOON...
TONIGHT
EAST WIND 5 TO 10 KNOTS BECOMING SOUTH 10 TO 15 KNOTS
WITH GUSTS TO AROUND 25 KNOTS IN THE LATE EVENING AND OVERNIGHT.
CHANCE OF SHOWERS LATE IN THE EVENING. SHOWERS AND CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
TUESDAY
SOUTH WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. SHOWERS AND CHANCE OF THUNDERSTORMS IN THE MORNING.
WAVES 1 TO 2 FEET.
TUESDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS DECREASING TO 20 KNOTS IN THE LATE EVENING AND
OVERNIGHT. MOSTLY CLOUDY IN THE EVENING THEN CLEARING. WAVES 1 TO
2 FEET.
WEDNESDAY
WEST WIND 20 TO 25 KNOTS WITH GALES TO AROUND
35 KNOTS. SUNNY. WAVES 1 TO 2 FEET BUILDING TO 1 TO 3 FEET IN THE
AFTERNOON. A GALE WARNING MAY BE NEEDED.
LSZ148-080400-
OAK POINT TO SAXON HARBOR WI-
500 PM CDT MON SEP 7 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT TUESDAY THROUGH
WEDNESDAY MORNING...
...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY
AFTERNOON...
TONIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTH WITH GUSTS
TO AROUND 25 KNOTS IN THE LATE EVENING AND OVERNIGHT. SLIGHT
CHANCE OF SHOWERS LATE IN THE EVENING. SHOWERS AND CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
TUESDAY
SOUTH WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
INCREASING TO 30 KNOTS IN THE LATE MORNING AND AFTERNOON. SHOWERS
AND CHANCE OF THUNDERSTORMS IN THE MORNING. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
30 KNOTS DECREASING TO 20 KNOTS. MOSTLY CLOUDY IN THE EVENING
THEN CLEARING. WAVES 1 TO 2 FEET.
WEDNESDAY
WEST WIND 20 TO 25 KNOTS WITH GALES TO AROUND
40 KNOTS. SUNNY. WAVES 1 TO 2 FEET BUILDING TO 3 TO 5 FEET IN THE
LATE MORNING AND AFTERNOON. A GALE WARNING MAY BE NEEDED.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page