098
FZUS53 KDLH 312313
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
613 PM CDT MON AUG 31 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.
LSZ140-011000-
GRAND PORTAGE TO GRAND MARAIS MN-
613 PM CDT MON AUG 31 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT TUESDAY
REST OF TONIGHT
SOUTH WIND 5 KNOTS BECOMING SOUTHWEST IN THE
LATE EVENING AND OVERNIGHT. PATCHY DENSE FOG EARLY IN THE
EVENING, THEN WIDESPREAD DENSE FOG LATE IN THE EVENING. AREAS OF
DENSE FOG AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
SOUTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. PATCHY DENSE FOG IN THE MORNING. WAVES 1 TO 2 FEET
BUILDING TO 2 TO 4 FEET IN THE AFTERNOON.
TUESDAY NIGHT
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. WAVES 1 TO 3 FEET SUBSIDING TO 1 TO 2 FEET IN THE
LATE EVENING AND OVERNIGHT.
WEDNESDAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE
AFTERNOON. PARTLY SUNNY. WAVES 1 FOOT OR LESS.
LSZ141-011000-
GRAND MARAIS TO TACONITE HARBOR MN-
613 PM CDT MON AUG 31 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT TUESDAY
REST OF TONIGHT
SOUTH WIND 5 KNOTS BECOMING SOUTHWEST LATE IN
THE EVENING, THEN BECOMING SOUTH AFTER MIDNIGHT. WIDESPREAD DENSE
FOG IN THE EVENING. AREAS OF DENSE FOG AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
TUESDAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. PATCHY DENSE FOG IN THE MORNING. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY IN
THE EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE
AFTERNOON. PARTLY SUNNY. WAVES 1 FOOT OR LESS.
LSZ142-011000-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
613 PM CDT MON AUG 31 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT TUESDAY
REST OF TONIGHT
SOUTH WIND 5 KNOTS BECOMING WEST LATE IN THE
EVENING, THEN BECOMING SOUTH AFTER MIDNIGHT. WIDESPREAD DENSE FOG
IN THE EVENING. AREAS OF DENSE FOG AFTER MIDNIGHT. WAVES 1 FOOT
OR LESS.
TUESDAY
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE MORNING AND AFTERNOON. PATCHY DENSE FOG IN THE MORNING.
WAVES 1 TO 2 FEET.
TUESDAY NIGHT
NORTHWEST WIND 5 KNOTS. MOSTLY CLOUDY. WAVES
1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING SOUTH 5 KNOTS EARLY IN
THE AFTERNOON BECOMING VARIABLE 10 KNOTS OR LESS. PARTLY SUNNY.
WAVES 1 FOOT OR LESS.
LSZ143-011000-
SILVER BAY HARBOR TO TWO HARBORS MN-
613 PM CDT MON AUG 31 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TONIGHT
SOUTHWEST WIND 5 KNOTS BECOMING WEST LATE IN
THE EVENING, THEN BECOMING SOUTHWEST AFTER MIDNIGHT. PATCHY DENSE
FOG EARLY IN THE EVENING. AREAS OF DENSE FOG IN THE LATE EVENING
AND EARLY MORNING, THEN PATCHY FOG TOWARD DAYBREAK. WAVES 1 FOOT
OR LESS.
TUESDAY
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE MORNING AND AFTERNOON. PATCHY FOG IN THE MORNING. WAVES
1 TO 2 FEET.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS EASING TO 5 KNOTS IN THE
LATE EVENING AND OVERNIGHT. MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING SOUTHEAST 5 KNOTS EARLY
IN THE AFTERNOON BECOMING VARIABLE 10 KNOTS OR LESS. MOSTLY
CLOUDY IN THE MORNING THEN BECOMING MOSTLY SUNNY. WAVES 1 FOOT OR
LESS.
LSZ144-011000-
TWO HARBORS TO DULUTH MN-
613 PM CDT MON AUG 31 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TONIGHT
WEST WIND 5 KNOTS. AREAS OF DENSE FOG AFTER
MIDNIGHT. PATCHY DENSE FOG TOWARD DAYBREAK. WAVES 1 FOOT OR LESS.
TUESDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE MORNING AND AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
WEDNESDAY
NORTHWEST WIND 5 KNOTS BECOMING EAST IN THE
AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE MORNING. WAVES
1 FOOT OR LESS.
LSZ145-011000-
DULUTH MN TO PORT WING WI-
613 PM CDT MON AUG 31 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TONIGHT
SOUTHWEST WIND 5 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
TUESDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE MORNING AND AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
WAVES 1 TO 2 FEET.
WEDNESDAY
WEST WIND 5 KNOTS BECOMING NORTHEAST IN THE
AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE MORNING. WAVES
1 FOOT OR LESS.
LSZ146-011000-
PORT WING TO SAND ISLAND WI-
613 PM CDT MON AUG 31 2026
REST OF TONIGHT
SOUTHWEST WIND 5 KNOTS. PATCHY FOG AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
TUESDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
WAVES 1 TO 2 FEET.
WEDNESDAY
WEST WIND 5 KNOTS BECOMING NORTHWEST LATE IN THE
MORNING, THEN BECOMING VARIABLE 10 KNOTS OR LESS IN THE
AFTERNOON. SLIGHT CHANCE OF SHOWERS IN THE MORNING. WAVES 1 FOOT
OR LESS.
LSZ147-011000-
SAND ISLAND TO BAYFIELD WI-
613 PM CDT MON AUG 31 2026
REST OF TONIGHT
SOUTHWEST WIND 5 KNOTS. PATCHY FOG EARLY IN
THE EVENING. AREAS OF DENSE FOG AFTER MIDNIGHT. WAVES 1 FOOT OR
LESS.
TUESDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING EAST 5 KNOTS LATE IN THE
AFTERNOON. SLIGHT CHANCE OF SHOWERS IN THE MORNING. WAVES 1 FOOT
OR LESS.
LSZ150-011000-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
613 PM CDT MON AUG 31 2026
REST OF TONIGHT
SOUTHWEST WIND 5 KNOTS. AREAS OF DENSE FOG
EARLY IN THE EVENING. WIDESPREAD DENSE FOG IN THE LATE EVENING
AND OVERNIGHT. WAVES 1 FOOT OR LESS.
TUESDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE MORNING AND AFTERNOON. PATCHY DENSE FOG IN THE MORNING.
WAVES 1 TO 2 FEET.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
WEDNESDAY
WEST WIND 5 KNOTS BECOMING NORTH EARLY IN THE
AFTERNOON, THEN BECOMING SOUTHEAST LATE IN THE AFTERNOON. SLIGHT
CHANCE OF SHOWERS IN THE MORNING. WAVES 1 FOOT OR LESS.
LSZ121-011000-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
613 PM CDT MON AUG 31 2026
REST OF TONIGHT
SOUTHWEST WIND 5 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
TUESDAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST WITH GUSTS TO AROUND 20 KNOTS LATE IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTHEAST 5 KNOTS IN THE
AFTERNOON. SLIGHT CHANCE OF SHOWERS IN THE MORNING. WAVES 1 FOOT
OR LESS.
LSZ148-011000-
OAK POINT TO SAXON HARBOR WI-
613 PM CDT MON AUG 31 2026
REST OF TONIGHT
SOUTH WIND 5 KNOTS. PATCHY FOG IN THE LATE
EVENING AND OVERNIGHT. WAVES 1 FOOT OR LESS.
TUESDAY
SOUTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST WITH GUSTS TO AROUND 20 KNOTS LATE IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTHWEST EARLY IN THE MORNING. SLIGHT CHANCE
OF SHOWERS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTHEAST 5 KNOTS IN THE
AFTERNOON. SLIGHT CHANCE OF SHOWERS IN THE MORNING. WAVES 1 FOOT
OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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