652
FZUS53 KDLH 291137
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
637 AM CDT WED JUL 29 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.
LSZ140-291600-
GRAND PORTAGE TO GRAND MARAIS MN-
637 AM CDT WED JUL 29 2026
TODAY
SOUTHWEST WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES 1 FOOT
OR LESS.
TONIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING NORTHEAST AFTER
MIDNIGHT. SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
THURSDAY
EAST WIND 5 KNOTS BECOMING SOUTH 10 TO 15 KNOTS WITH
GUSTS TO AROUND 20 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON,
THEN BECOMING SOUTHWEST WITH GUSTS TO AROUND 20 KNOTS LATE IN THE
AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS THROUGH THE DAY. SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
WEST WIND 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN RAIN
SHOWERS LIKELY AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
LSZ141-291600-
GRAND MARAIS TO TACONITE HARBOR MN-
637 AM CDT WED JUL 29 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING
TODAY
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST IN THE LATE
MORNING AND EARLY AFTERNOON, THEN BECOMING NORTH LATE IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
THURSDAY
NORTH WIND 5 KNOTS BECOMING SOUTHEAST LATE IN THE
MORNING, THEN BECOMING SOUTH EARLY IN THE AFTERNOON BECOMING WEST
LATE IN THE AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS THROUGH THE
DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
THURSDAY NIGHT
NORTHWEST WIND 5 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS IN THE EVENING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE NIGHT. RAIN SHOWERS LIKELY AFTER MIDNIGHT. WAVES 1 FOOT OR
LESS.
LSZ142-291600-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
637 AM CDT WED JUL 29 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING
TODAY
SOUTH WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
THURSDAY
VARIABLE WINDS 10 KNOTS OR LESS. SLIGHT CHANCE OF
RAIN SHOWERS THROUGH THE DAY. SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
VARIABLE WINDS 10 KNOTS OR LESS. CHANCE OF RAIN
SHOWERS IN THE EVENING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE NIGHT. RAIN SHOWERS LIKELY AFTER MIDNIGHT. WAVES 1 FOOT OR
LESS.
LSZ143-291600-
SILVER BAY HARBOR TO TWO HARBORS MN-
637 AM CDT WED JUL 29 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING
TODAY
SOUTHEAST WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTHEAST 5 KNOTS LATE
IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. MOSTLY CLOUDY IN THE EVENING THEN
BECOMING PARTLY CLOUDY. 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. SLIGHT CHANCE OF RAIN SHOWERS IN
THE MORNING, THEN CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
NORTHWEST WIND 5 KNOTS IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTH 5 KNOTS 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.
LSZ144-291600-
TWO HARBORS TO DULUTH MN-
637 AM CDT WED JUL 29 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING
TODAY
EAST WIND 5 KNOTS BECOMING SOUTHEAST LATE IN THE
MORNING, THEN BECOMING EAST IN THE AFTERNOON. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLOUDY IN THE EVENING
THEN BECOMING PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHEAST WIND 5 KNOTS BECOMING SOUTH IN THE LATE
MORNING AND AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
NORTHEAST WIND 5 KNOTS BECOMING NORTHWEST IN
THE LATE EVENING AND OVERNIGHT. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
LSZ145-291600-
DULUTH MN TO PORT WING WI-
637 AM CDT WED JUL 29 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING
TODAY
SOUTHEAST WIND 5 KNOTS BECOMING NORTHEAST IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLOUDY IN THE EVENING
THEN BECOMING PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTH WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF SHOWERS IN
THE MORNING, THEN CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
EAST WIND 5 KNOTS BECOMING NORTHWEST LATE IN
THE EVENING, THEN BECOMING SOUTHWEST AFTER MIDNIGHT BECOMING
SOUTHEAST EARLY IN THE MORNING. CHANCE OF THUNDERSTORMS IN THE
EVENING. CHANCE OF SHOWERS THROUGH THE NIGHT. SLIGHT CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
LSZ146-291600-
PORT WING TO SAND ISLAND WI-
637 AM CDT WED JUL 29 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING
TODAY
SOUTHEAST WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. MOSTLY CLOUDY IN THE EVENING THEN
BECOMING PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING WEST 5 KNOTS
LATE IN THE MORNING, THEN BECOMING NORTHWEST IN THE AFTERNOON.
SLIGHT CHANCE OF SHOWERS IN THE MORNING, THEN CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTHWEST WIND 5 KNOTS BECOMING NORTH EARLY IN
THE MORNING. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING,
THEN SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
LSZ147-291600-
SAND ISLAND TO BAYFIELD WI-
637 AM CDT WED JUL 29 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING
TODAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING EAST 5 KNOTS
LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
EAST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTHEAST 5 KNOTS AFTER
MIDNIGHT BECOMING SOUTHWEST. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
WEST WIND 5 KNOTS BECOMING NORTHWEST LATE IN THE
AFTERNOON. SLIGHT CHANCE OF SHOWERS IN THE MORNING, THEN CHANCE
OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
WEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE
LATE EVENING AND OVERNIGHT. SLIGHT CHANCE OF SHOWERS IN THE
EVENING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE NIGHT.
SHOWERS LIKELY AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
LSZ150-291600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
637 AM CDT WED JUL 29 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING
TODAY
SOUTH WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING EAST 5 KNOTS IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
EAST WIND 5 KNOTS BECOMING SOUTH EARLY IN THE MORNING.
PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 5 KNOTS BECOMING WEST EARLY IN THE
AFTERNOON, THEN BECOMING EAST LATE IN THE AFTERNOON. SLIGHT
CHANCE OF RAIN SHOWERS THROUGH THE DAY. SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTHWEST WIND 5 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS IN THE EVENING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE NIGHT. RAIN SHOWERS LIKELY AFTER MIDNIGHT. WAVES 1 FOOT OR
LESS.
LSZ121-291600-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
637 AM CDT WED JUL 29 2026
TODAY
SOUTHWEST WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTHEAST 5 KNOTS IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING SOUTHWEST 5 KNOTS AFTER
MIDNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 5 KNOTS. SLIGHT CHANCE OF SHOWERS
THROUGH THE DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTHWEST WIND 5 KNOTS. SLIGHT CHANCE OF
SHOWERS IN THE EVENING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE NIGHT. SHOWERS LIKELY AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
LSZ148-291600-
OAK POINT TO SAXON HARBOR WI-
637 AM CDT WED JUL 29 2026
TODAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING EAST 5 KNOTS IN
THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
EAST WIND 5 KNOTS BECOMING SOUTH AFTER MIDNIGHT.
PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 5 KNOTS. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTH WIND 5 KNOTS. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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