539
FZUS53 KDLH 242313
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
613 PM CDT MON AUG 24 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.
LSZ140-251000-
GRAND PORTAGE TO GRAND MARAIS MN-
613 PM CDT MON AUG 24 2026
REST OF TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY.
WAVES 1 FOOT OR LESS.
TUESDAY
EAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS
THROUGH THE DAY. CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
TUESDAY NIGHT
EAST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST IN
THE LATE EVENING AND EARLY MORNING, THEN BECOMING WEST EARLY IN
THE MORNING. CHANCE OF THUNDERSTORMS IN THE EVENING. CHANCE OF
RAIN SHOWERS THROUGH THE NIGHT. SLIGHT CHANCE OF THUNDERSTORMS
AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN THE
AFTERNOON. CHANCE OF RAIN SHOWERS THROUGH THE DAY. WAVES 1 FOOT
OR LESS.
LSZ141-251000-
GRAND MARAIS TO TACONITE HARBOR MN-
613 PM CDT MON AUG 24 2026
REST OF TONIGHT
SOUTHWEST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS. MOSTLY CLOUDY. WAVES 1 FOOT
OR LESS.
TUESDAY
EAST WIND 5 KNOTS. CHANCE OF RAIN SHOWERS THROUGH THE
DAY. CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR
LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS BECOMING WEST IN THE LATE
EVENING AND OVERNIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
EVENING, THEN SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
WEDNESDAY
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
IN THE LATE MORNING AND AFTERNOON. CHANCE OF RAIN SHOWERS THROUGH
THE DAY. WAVES 1 FOOT OR LESS.
LSZ142-251000-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
613 PM CDT MON AUG 24 2026
REST OF TONIGHT
EAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS. PARTLY CLOUDY IN THE EVENING
THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
TUESDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING NORTHEAST
5 KNOTS IN THE AFTERNOON. CHANCE OF RAIN SHOWERS THROUGH THE DAY.
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS BECOMING WEST IN THE LATE
EVENING AND OVERNIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
EVENING, THEN SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
WEDNESDAY
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
IN THE LATE MORNING AND AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS
THROUGH THE DAY. WAVES 1 FOOT OR LESS.
LSZ143-251000-
SILVER BAY HARBOR TO TWO HARBORS MN-
613 PM CDT MON AUG 24 2026
REST OF TONIGHT
NORTHEAST WIND 5 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS TOWARD DAYBREAK. WAVES 1 FOOT OR LESS.
TUESDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING EAST 5 KNOTS
IN THE LATE MORNING AND AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS
IN THE MORNING. CHANCE OF RAIN SHOWERS THROUGH THE DAY. CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS BECOMING WEST IN THE LATE
EVENING AND OVERNIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS THROUGH THE DAY. WAVES 1 FOOT OR LESS.
LSZ144-251000-
TWO HARBORS TO DULUTH MN-
613 PM CDT MON AUG 24 2026
REST OF TONIGHT
NORTHEAST WIND 5 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS TOWARD DAYBREAK. WAVES 1 FOOT OR LESS.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS BECOMING EAST IN THE
AFTERNOON. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING, THEN CHANCE OF THUNDERSTORMS AND
SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR
LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS BECOMING WEST IN THE LATE
EVENING AND OVERNIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
EVENING. WAVES 1 FOOT OR LESS.
WEDNESDAY
NORTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
IN THE LATE MORNING AND AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS
THROUGH THE DAY. WAVES 1 FOOT OR LESS.
LSZ145-251000-
DULUTH MN TO PORT WING WI-
613 PM CDT MON AUG 24 2026
REST OF TONIGHT
EAST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS TOWARD DAYBREAK. WAVES 1 FOOT OR LESS.
TUESDAY
SOUTHEAST WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
MORNING AND EARLY AFTERNOON, THEN BECOMING EAST LATE IN THE
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING. CHANCE
OF RAIN SHOWERS THROUGH THE DAY. CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING WEST IN
THE LATE EVENING AND OVERNIGHT. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHWEST WITH GUSTS TO AROUND 20 KNOTS LATE IN
THE AFTERNOON. SLIGHT CHANCE OF SHOWERS THROUGH THE DAY. SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
LSZ146-251000-
PORT WING TO SAND ISLAND WI-
613 PM CDT MON AUG 24 2026
REST OF TONIGHT
EAST WIND 5 KNOTS. PARTLY CLOUDY IN THE
EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
TUESDAY
SOUTHEAST WIND 5 KNOTS BECOMING WEST LATE IN THE
MORNING, THEN BECOMING NORTHEAST EARLY IN THE AFTERNOON BECOMING
EAST LATE IN THE AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS IN THE
MORNING. CHANCE OF SHOWERS THROUGH THE DAY. CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS BECOMING WEST IN THE LATE
EVENING AND OVERNIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
EVENING. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF SHOWERS IN
THE AFTERNOON. WAVES 1 FOOT OR LESS.
LSZ147-251000-
SAND ISLAND TO BAYFIELD WI-
613 PM CDT MON AUG 24 2026
REST OF TONIGHT
SOUTHEAST WIND 5 KNOTS. PARTLY CLOUDY UNTIL
EARLY MORNING THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
TUESDAY
SOUTH WIND 5 TO 10 KNOTS BECOMING EAST LATE IN THE
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING. CHANCE
OF SHOWERS THROUGH THE DAY. CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
EAST WIND 5 KNOTS BECOMING SOUTHWEST IN THE LATE
EVENING AND OVERNIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
EVENING, THEN SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON. WAVES 1 FOOT
OR LESS.
LSZ150-251000-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
613 PM CDT MON AUG 24 2026
REST OF TONIGHT
SOUTHEAST WIND 5 KNOTS. PARTLY CLOUDY UNTIL
EARLY MORNING THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
TUESDAY
SOUTH WIND 5 TO 10 KNOTS BECOMING SOUTHEAST LATE IN
THE AFTERNOON. SLIGHT CHANCE OF SHOWERS IN THE MORNING, THEN
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
TUESDAY NIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST
WITH GUSTS TO AROUND 20 KNOTS IN THE LATE EVENING AND OVERNIGHT.
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 FOOT
OR LESS.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS UNTIL
LATE AFTERNOON. SLIGHT CHANCE OF SHOWERS. WAVES 1 TO 2 FEET.
LSZ121-251000-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
613 PM CDT MON AUG 24 2026
REST OF TONIGHT
EAST WIND 5 TO 10 KNOTS BECOMING SOUTH AFTER
MIDNIGHT. PARTLY CLOUDY UNTIL EARLY MORNING THEN BECOMING MOSTLY
CLOUDY. WAVES 1 FOOT OR LESS.
TUESDAY
SOUTH WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS EARLY
IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE MORNING, THEN CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST
IN THE LATE EVENING AND EARLY MORNING, THEN BECOMING WEST EARLY
IN THE MORNING. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
EVENING. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN THE
LATE MORNING AND AFTERNOON. SLIGHT CHANCE OF SHOWERS THROUGH THE
DAY. WAVES 1 FOOT OR LESS.
LSZ148-251000-
OAK POINT TO SAXON HARBOR WI-
613 PM CDT MON AUG 24 2026
REST OF TONIGHT
EAST WIND 5 KNOTS BECOMING SOUTH AFTER
MIDNIGHT. PARTLY CLOUDY UNTIL EARLY MORNING THEN BECOMING MOSTLY
CLOUDY. WAVES 1 FOOT OR LESS.
TUESDAY
SOUTH WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS EARLY
IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE MORNING, THEN CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
EAST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST IN
THE LATE EVENING AND EARLY MORNING, THEN BECOMING WEST EARLY IN
THE MORNING. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING,
THEN SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN THE
LATE MORNING AND AFTERNOON. SLIGHT CHANCE OF SHOWERS THROUGH THE
DAY. WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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