801
FZUS53 KDLH 051052
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
552 AM CDT WED AUG 5 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.
LSZ140-051600-
GRAND PORTAGE TO GRAND MARAIS MN-
552 AM CDT WED AUG 5 2026
TODAY
SOUTHWEST WIND 5 TO 10 KNOTS RISING TO 10 TO 15 KNOTS
WITH GUSTS TO AROUND 20 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO
3 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS EASING TO 5 TO 10 KNOTS IN THE LATE EVENING AND
OVERNIGHT. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
THURSDAY
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO 25 KNOTS
INCREASING TO 30 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 SMALL CRAFT ADVISORY MAY BE NEEDED.
THURSDAY NIGHT
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
25 KNOTS INCREASING TO 30 KNOTS AFTER MIDNIGHT. SLIGHT CHANCE OF
RAIN SHOWERS AFTER MIDNIGHT. WAVES 3 TO 5 FEET. WAVES
OCCASIONALLY TO 7 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
LSZ141-051600-
GRAND MARAIS TO TACONITE HARBOR MN-
552 AM CDT WED AUG 5 2026
TODAY
WEST WIND 5 KNOTS BECOMING SOUTH LATE IN THE AFTERNOON.
SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST EARLY IN THE
MORNING. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
LATE IN THE MORNING INCREASING TO 30 KNOTS, THEN DECREASING TO
25 KNOTS LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 3 FEET.
THURSDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS DECREASING TO 20 KNOTS IN THE LATE EVENING AND
OVERNIGHT. CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES 1 TO
2 FEET.
LSZ142-051600-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
552 AM CDT WED AUG 5 2026
TODAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST WITH GUSTS TO
AROUND 20 KNOTS IN THE LATE MORNING AND AFTERNOON. SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST EARLY IN THE
MORNING. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE LATE MORNING AND AFTERNOON. MOSTLY
SUNNY. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO
25 KNOTS DECREASING TO 20 KNOTS IN THE LATE EVENING AND
OVERNIGHT. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. WAVES 1 TO 2 FEET.
LSZ143-051600-
SILVER BAY HARBOR TO TWO HARBORS MN-
552 AM CDT WED AUG 5 2026
TODAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE LATE MORNING
AND AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTH WIND 5 KNOTS BECOMING SOUTHWEST IN THE LATE
EVENING AND OVERNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE LATE MORNING AND AFTERNOON. MOSTLY
SUNNY. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS DECREASING TO 20 KNOTS IN THE LATE EVENING AND
OVERNIGHT. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
LSZ144-051600-
TWO HARBORS TO DULUTH MN-
552 AM CDT WED AUG 5 2026
TODAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTH LATE IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO
2 FEET.
THURSDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS DECREASING TO 20 KNOTS EARLY IN THE MORNING. CHANCE OF
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES
1 TO 3 FEET.
LSZ145-051600-
DULUTH MN TO PORT WING WI-
552 AM CDT WED AUG 5 2026
TODAY
SOUTHWEST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 FOOT OR
LESS.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO
2 FEET.
THURSDAY NIGHT
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS IN THE LATE EVENING AND EARLY
MORNING, THEN DECREASING TO 20 KNOTS EARLY IN THE MORNING. SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO
2 FEET.
LSZ146-051600-
PORT WING TO SAND ISLAND WI-
552 AM CDT WED AUG 5 2026
TODAY
SOUTHWEST WIND 5 KNOTS. SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO
2 FEET.
THURSDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS IN THE LATE EVENING AND EARLY
MORNING, THEN DECREASING TO 20 KNOTS EARLY IN THE MORNING. SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO
2 FEET.
LSZ147-051600-
SAND ISLAND TO BAYFIELD WI-
552 AM CDT WED AUG 5 2026
TODAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH LATE IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTH WIND 5 KNOTS BECOMING SOUTHWEST AFTER MIDNIGHT.
MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 FOOT OR
LESS.
THURSDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS IN THE LATE EVENING AND EARLY
MORNING, THEN DECREASING TO 20 KNOTS EARLY IN THE MORNING. SLIGHT
CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
LSZ150-051600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
552 AM CDT WED AUG 5 2026
TODAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH IN THE AFTERNOON.
SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING SOUTHWEST AFTER
MIDNIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO
2 FEET.
THURSDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS IN THE LATE EVENING AND
OVERNIGHT. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
LSZ121-051600-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
552 AM CDT WED AUG 5 2026
TODAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING EAST LATE IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST IN THE LATE
EVENING AND OVERNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
SUNNY. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
LSZ148-051600-
OAK POINT TO SAXON HARBOR WI-
552 AM CDT WED AUG 5 2026
TODAY
SOUTHWEST WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTH IN THE
LATE EVENING AND OVERNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO
2 FEET.
THURSDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 25 KNOTS EASING TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS
EARLY IN THE MORNING. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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