234
FZUS53 KDLH 011931
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
231 PM CDT TUE SEP 1 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.
LSZ140-020400-
GRAND PORTAGE TO GRAND MARAIS MN-
231 PM CDT TUE SEP 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
TONIGHT
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS EARLY
IN THE EVENING. PARTLY CLOUDY. WAVES 1 TO 3 FEET SUBSIDING TO
1 TO 2 FEET IN THE LATE EVENING AND OVERNIGHT.
WEDNESDAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTH IN
THE LATE EVENING AND EARLY MORNING, THEN BECOMING NORTH 5 KNOTS
EARLY IN THE MORNING. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 5 TO 10 KNOTS BECOMING EAST IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
LSZ141-020400-
GRAND MARAIS TO TACONITE HARBOR MN-
231 PM CDT TUE SEP 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
TONIGHT
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS
BECOMING NORTHWEST IN THE LATE EVENING AND OVERNIGHT. PARTLY
CLOUDY UNTIL EARLY MORNING THEN BECOMING MOSTLY CLOUDY. WAVES
1 TO 2 FEET.
WEDNESDAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
VARIABLE WINDS 10 KNOTS OR LESS BECOMING
NORTHEAST 5 KNOTS EARLY IN THE MORNING. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 5 TO 10 KNOTS BECOMING EAST WITH GUSTS
TO AROUND 20 KNOTS IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT
OR LESS.
LSZ142-020400-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
231 PM CDT TUE SEP 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
TONIGHT
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS
BECOMING NORTHWEST IN THE LATE EVENING AND EARLY MORNING, THEN
BECOMING VARIABLE 10 KNOTS OR LESS LATE IN THE NIGHT. PARTLY
CLOUDY UNTIL EARLY MORNING THEN BECOMING MOSTLY CLOUDY. WAVES
1 FOOT OR LESS.
WEDNESDAY
VARIABLE WINDS 10 KNOTS OR LESS. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
WEDNESDAY NIGHT
VARIABLE WINDS 10 KNOTS OR LESS BECOMING NORTH
5 KNOTS EARLY IN THE MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
LSZ143-020400-
SILVER BAY HARBOR TO TWO HARBORS MN-
231 PM CDT TUE SEP 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
TONIGHT
WEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST AFTER
MIDNIGHT, THEN BECOMING VARIABLE 10 KNOTS OR LESS LATE IN THE
NIGHT. PARTLY CLOUDY EARLY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTH
5 KNOTS EARLY IN THE AFTERNOON, THEN BECOMING VARIABLE 10 KNOTS
OR LESS LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR
LESS.
WEDNESDAY NIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
MOSTLY SUNNY. WAVES 1 TO 2 FEET.
LSZ144-020400-
TWO HARBORS TO DULUTH MN-
231 PM CDT TUE SEP 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
TONIGHT
WEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST AFTER
MIDNIGHT, THEN BECOMING VARIABLE 10 KNOTS OR LESS LATE IN THE
NIGHT. MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST
5 KNOTS LATE IN THE MORNING, THEN BECOMING SOUTHEAST IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
MOSTLY SUNNY. WAVES 1 TO 2 FEET BUILDING TO 1 TO 3 FEET LATE IN
THE AFTERNOON.
LSZ145-020400-
DULUTH MN TO PORT WING WI-
231 PM CDT TUE SEP 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
TONIGHT
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS EARLY IN
THE EVENING. MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
NORTHWEST WIND 5 KNOTS BECOMING WEST LATE IN THE
MORNING, THEN BECOMING EAST IN THE AFTERNOON. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 2 FEET BUILDING TO
1 TO 3 FEET LATE IN THE AFTERNOON.
LSZ146-020400-
PORT WING TO SAND ISLAND WI-
231 PM CDT TUE SEP 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
TONIGHT
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS
UNTIL EARLY MORNING BECOMING VARIABLE 10 KNOTS OR LESS. PARTLY
CLOUDY EARLY IN THE EVENING THEN BECOMING MOSTLY CLOUDY. WAVES
1 TO 2 FEET.
WEDNESDAY
VARIABLE WINDS 10 KNOTS OR LESS. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
WEDNESDAY NIGHT
EAST WIND 5 KNOTS IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTHEAST 5 KNOTS EARLY
IN THE MORNING. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
LSZ147-020400-
SAND ISLAND TO BAYFIELD WI-
231 PM CDT TUE SEP 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
TONIGHT
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS
UNTIL EARLY MORNING BECOMING VARIABLE 10 KNOTS OR LESS. PARTLY
CLOUDY IN THE EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 TO
2 FEET.
WEDNESDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING EAST
5 KNOTS LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR
LESS.
WEDNESDAY NIGHT
EAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
THURSDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
LSZ150-020400-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
231 PM CDT TUE SEP 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
TONIGHT
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS
BECOMING NORTHWEST AFTER MIDNIGHT. PARTLY CLOUDY IN THE EVENING
THEN BECOMING MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTHEAST LATE IN
THE AFTERNOON. PARTLY SUNNY IN THE MORNING THEN CLEARING. WAVES
1 FOOT OR LESS.
WEDNESDAY NIGHT
SOUTHEAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTHEAST
5 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
LSZ121-020400-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
231 PM CDT TUE SEP 1 2026
TONIGHT
WEST WIND 5 TO 10 KNOTS UNTIL EARLY MORNING BECOMING
VARIABLE 10 KNOTS OR LESS. PARTLY CLOUDY EARLY IN THE EVENING
THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING EAST
5 KNOTS IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
EAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS. PATCHY FOG AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS.
THURSDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING NORTHEAST
5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE LATE MORNING
AND AFTERNOON. PATCHY FOG IN THE MORNING. WAVES 1 FOOT OR LESS.
LSZ148-020400-
OAK POINT TO SAXON HARBOR WI-
231 PM CDT TUE SEP 1 2026
TONIGHT
WEST WIND 5 TO 10 KNOTS UNTIL EARLY MORNING BECOMING
VARIABLE 10 KNOTS OR LESS. PARTLY CLOUDY IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING EAST
5 KNOTS IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
EAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS. PARTLY CLOUDY. WAVES 1 FOOT
OR LESS.
THURSDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING NORTHEAST
10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS IN THE LATE MORNING
AND AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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