439
FZUS53 KDLH 252218
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
517 PM CDT SAT JUL 25 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.
LSZ140-260400-
GRAND PORTAGE TO GRAND MARAIS MN-
517 PM CDT SAT JUL 25 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST 5 KNOTS AFTER MIDNIGHT, THEN BECOMING
NORTHWEST LATE IN THE NIGHT. PATCHY FOG EARLY IN THE EVENING.
SLIGHT CHANCE OF RAIN SHOWERS LATE IN THE NIGHT. WAVES 1 TO
2 FEET.
SUNDAY
EAST WIND 5 KNOTS BECOMING SOUTH IN THE LATE MORNING
AND AFTERNOON. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
MORNING. WAVES 1 FOOT OR LESS.
SUNDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS. CHANCE OF THUNDERSTORMS
IN THE MORNING. CHANCE OF RAIN SHOWERS THROUGH THE DAY. SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FEET.
LSZ141-260400-
GRAND MARAIS TO TACONITE HARBOR MN-
517 PM CDT SAT JUL 25 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TONIGHT
WEST WIND 5 TO 10 KNOTS IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. PATCHY DENSE FOG EARLY IN THE EVENING.
WAVES 1 FOOT OR LESS.
SUNDAY
NORTHEAST WIND 5 KNOTS BECOMING SOUTHEAST LATE IN THE
MORNING, THEN BECOMING SOUTHWEST IN THE AFTERNOON. SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS IN THE MORNING. WAVES 1 FOOT OR
LESS.
SUNDAY NIGHT
WEST WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
EVENING AND OVERNIGHT. SLIGHT CHANCE OF RAIN SHOWERS IN THE
EVENING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
MONDAY
EAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 TO 2 FEET.
LSZ142-260400-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
517 PM CDT SAT JUL 25 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TONIGHT
WEST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. PATCHY FOG LATE IN THE EVENING. WAVES
1 FOOT OR LESS.
SUNDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING NORTH 5 KNOTS
LATE IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE MORNING. WAVES 1 FOOT OR LESS.
SUNDAY NIGHT
VARIABLE WINDS 10 KNOTS OR LESS BECOMING
NORTHEAST 5 KNOTS AFTER MIDNIGHT. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 FOOT OR LESS.
MONDAY
NORTHEAST WIND 5 KNOTS. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 FOOT OR LESS.
LSZ143-260400-
SILVER BAY HARBOR TO TWO HARBORS MN-
517 PM CDT SAT JUL 25 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS. PATCHY FOG LATE IN THE
EVENING. WAVES 1 FOOT OR LESS.
SUNDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING NORTHEAST
5 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON, THEN BECOMING
EAST LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
SUNDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 FOOT OR LESS.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS LATE
IN THE AFTERNOON. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. WAVES 1 FOOT OR LESS.
LSZ144-260400-
TWO HARBORS TO DULUTH MN-
517 PM CDT SAT JUL 25 2026
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
SUNDAY
EAST WIND 5 KNOTS. SLIGHT CHANCE OF RAIN SHOWERS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
SUNDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 FOOT OR LESS.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE AFTERNOON. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. WAVES 1 FOOT OR LESS.
LSZ145-260400-
DULUTH MN TO PORT WING WI-
517 PM CDT SAT JUL 25 2026
TONIGHT
NORTHWEST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING EAST 5 KNOTS LATE IN THE
NIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
SUNDAY
EAST WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
MORNING AND AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
SUNDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. CHANCE OF
THUNDERSTORMS IN THE EVENING. CHANCE OF RAIN SHOWERS THROUGH THE
NIGHT. SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING.
SLIGHT CHANCE OF RAIN SHOWERS THROUGH THE DAY. WAVES 1 TO 2 FEET.
LSZ146-260400-
PORT WING TO SAND ISLAND WI-
517 PM CDT SAT JUL 25 2026
TONIGHT
SOUTHWEST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
SUNDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING NORTHEAST
5 KNOTS IN THE LATE MORNING AND AFTERNOON. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
SUNDAY NIGHT
NORTHEAST WIND 5 KNOTS. CHANCE OF RAIN SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 FOOT OR LESS.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. CHANCE OF RAIN SHOWERS THROUGH THE
DAY. WAVES 1 FOOT OR LESS.
LSZ147-260400-
SAND ISLAND TO BAYFIELD WI-
517 PM CDT SAT JUL 25 2026
TONIGHT
SOUTHWEST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
SUNDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING EAST 5 KNOTS
IN THE LATE MORNING AND EARLY AFTERNOON, THEN BECOMING NORTHEAST
LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
SUNDAY NIGHT
NORTHEAST WIND 5 KNOTS. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 FOOT OR LESS.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE DAY. WAVES 1 FOOT
OR LESS.
LSZ150-260400-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
517 PM CDT SAT JUL 25 2026
TONIGHT
SOUTHWEST WIND 5 KNOTS. PATCHY DENSE FOG AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
SUNDAY
SOUTHEAST WIND 5 KNOTS BECOMING NORTHEAST LATE IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
SUNDAY NIGHT
NORTHEAST WIND 5 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS IN THE EVENING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE NIGHT. CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES 1 FOOT OR
LESS.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 TO 2 FEET.
LSZ121-260400-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
517 PM CDT SAT JUL 25 2026
TONIGHT
SOUTHEAST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
SUNDAY
SOUTHEAST WIND 5 KNOTS BECOMING NORTHEAST IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
SUNDAY NIGHT
NORTHEAST WIND 5 KNOTS. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 FOOT OR LESS.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS. CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE DAY. WAVES 1 FOOT OR
LESS.
LSZ148-260400-
OAK POINT TO SAXON HARBOR WI-
517 PM CDT SAT JUL 25 2026
TONIGHT
SOUTHEAST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING SOUTH 5 KNOTS LATE IN
THE NIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
SUNDAY
SOUTHEAST WIND 5 KNOTS BECOMING NORTHEAST IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
SUNDAY NIGHT
NORTHEAST WIND 5 KNOTS. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 FOOT OR LESS.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS. CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 TO 2 FEET.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page