230
FZUS53 KDLH 192052
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
352 PM CDT TUE AUG 19 2025
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.
LSZ140-141-200415-
GRAND PORTAGE TO GRAND MARAIS MN-
GRAND MARAIS TO TACONITE HARBOR MN-
352 PM CDT TUE AUG 19 2025
TONIGHT
NORTHEAST WIND 5 KNOTS. PATCHY FOG. WAVES 1 FOOT OR
LESS.
WEDNESDAY
NORTH WIND 5 KNOTS BECOMING EAST LATE IN THE
MORNING, THEN BECOMING SOUTH IN THE AFTERNOON. AREAS OF FOG IN
THE MORNING. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
SOUTHWEST WIND 5 KNOTS BECOMING WEST IN THE
LATE EVENING AND OVERNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH IN THE LATE
MORNING AND AFTERNOON. PATCHY FOG IN THE MORNING. WAVES 1 FOOT OR
LESS.
LSZ142-143-200415-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
SILVER BAY HARBOR TO TWO HARBORS MN-
352 PM CDT TUE AUG 19 2025
TONIGHT
NORTHEAST WIND 5 KNOTS. PATCHY FOG. WAVES 1 FOOT OR
LESS.
WEDNESDAY
NORTH WIND 5 KNOTS BECOMING SOUTHEAST IN THE
AFTERNOON. AREAS OF FOG IN THE MORNING. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
EAST WIND 5 KNOTS BECOMING NORTHEAST IN THE
LATE EVENING AND OVERNIGHT. PATCHY FOG AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
THURSDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHEAST
5 KNOTS IN THE LATE MORNING AND AFTERNOON. PATCHY FOG IN THE
MORNING. WAVES 1 FOOT OR LESS.
LSZ144-145-200415-
TWO HARBORS TO DULUTH MN-DULUTH MN TO PORT WING WI-
352 PM CDT TUE AUG 19 2025
TONIGHT
NORTHEAST WIND 5 KNOTS. PATCHY FOG. WAVES 1 FOOT OR
LESS.
WEDNESDAY
NORTHEAST WIND 5 KNOTS. PATCHY FOG IN THE MORNING.
WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
EAST WIND 5 KNOTS. PATCHY FOG AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHEAST WIND 5 TO 10 KNOTS. PATCHY FOG. WAVES
1 FOOT OR LESS.
LSZ146-200415-
PORT WING TO SAND ISLAND WI-
352 PM CDT TUE AUG 19 2025
TONIGHT
NORTHEAST WIND 5 KNOTS. PATCHY FOG UNTIL EARLY
MORNING, THEN AREAS OF DENSE FOG LATE IN THE NIGHT. WAVES 1 FOOT
OR LESS.
WEDNESDAY
NORTHEAST WIND 5 KNOTS. AREAS OF DENSE FOG IN THE
MORNING. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
EAST WIND 5 KNOTS. PATCHY FOG AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS.
THURSDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHEAST
5 KNOTS LATE IN THE MORNING, THEN BECOMING EAST IN THE AFTERNOON.
PATCHY FOG IN THE MORNING. WAVES 1 FOOT OR LESS.
LSZ147-200415-
SAND ISLAND TO BAYFIELD WI-
352 PM CDT TUE AUG 19 2025
TONIGHT
NORTHEAST WIND 5 KNOTS. PATCHY FOG. WAVES 1 FOOT OR
LESS.
WEDNESDAY
NORTHEAST WIND 5 KNOTS BECOMING EAST IN THE
AFTERNOON. AREAS OF FOG IN THE MORNING. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
SOUTHEAST WIND 5 KNOTS. PATCHY FOG AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTH WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
PATCHY FOG IN THE MORNING. WAVES 1 FOOT OR LESS.
LSZ150-200415-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
352 PM CDT TUE AUG 19 2025
TONIGHT
NORTHEAST WIND 5 KNOTS. PATCHY FOG UNTIL EARLY
MORNING, THEN AREAS OF DENSE FOG LATE IN THE NIGHT. WAVES 1 FOOT
OR LESS.
WEDNESDAY
NORTHEAST WIND 5 KNOTS BECOMING EAST IN THE
AFTERNOON. AREAS OF FOG IN THE MORNING. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
EAST WIND 5 KNOTS. PATCHY FOG AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS.
THURSDAY
SOUTH WIND 5 KNOTS BECOMING EAST LATE IN THE
AFTERNOON. PATCHY FOG. WAVES 1 FOOT OR LESS.
LSZ121-200415-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
352 PM CDT TUE AUG 19 2025
TONIGHT
NORTHEAST WIND 5 KNOTS. PATCHY FOG. WAVES 1 FOOT OR
LESS.
WEDNESDAY
NORTHEAST WIND 5 KNOTS. AREAS OF DENSE FOG IN THE
MORNING. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
EAST WIND 5 KNOTS IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING SOUTH 5 KNOTS EARLY IN
THE MORNING. PATCHY FOG AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
THURSDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTH
5 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON, THEN BECOMING
SOUTHEAST LATE IN THE AFTERNOON. PATCHY FOG. WAVES 1 FOOT OR
LESS.
LSZ148-200415-
OAK POINT TO SAXON HARBOR WI-
352 PM CDT TUE AUG 19 2025
TONIGHT
NORTHEAST WIND 5 KNOTS. PATCHY FOG. WAVES 1 FOOT OR
LESS.
WEDNESDAY
NORTHEAST WIND 5 KNOTS. AREAS OF DENSE FOG IN THE
MORNING. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
EAST WIND 5 KNOTS BECOMING SOUTH EARLY IN THE
MORNING. PATCHY FOG THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTH WIND 5 KNOTS BECOMING SOUTHEAST IN THE
AFTERNOON. PATCHY FOG. WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
ROTHSTEIN
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