457
FZUS53 KDLH 241117
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
617 AM CDT SUN MAY 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.
LSZ140-241600-
GRAND PORTAGE TO GRAND MARAIS MN-
617 AM CDT SUN MAY 24 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. AREAS OF DENSE FOG EARLY IN THE MORNING. PATCHY DENSE
FOG IN THE LATE MORNING AND AFTERNOON. SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS LATE IN
THE AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING WEST EARLY IN
THE MORNING. PATCHY DENSE FOG. WAVES 1 TO 2 FEET.
MONDAY
SOUTHEAST WIND 5 KNOTS BECOMING SOUTH IN THE AFTERNOON.
PATCHY DENSE FOG IN THE MORNING. SLIGHT CHANCE OF RAIN SHOWERS IN
THE MORNING. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING. SLIGHT CHANCE OF RAIN SHOWERS
THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
LSZ141-241600-
GRAND MARAIS TO TACONITE HARBOR MN-
617 AM CDT SUN MAY 24 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY
TODAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTH LATE IN THE
AFTERNOON. AREAS OF DENSE FOG EARLY IN THE MORNING. PATCHY DENSE
FOG IN THE LATE MORNING AND AFTERNOON. SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS LATE IN
THE AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
SOUTH WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. PATCHY DENSE FOG. WAVES 1 FOOT OR
LESS.
MONDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHEAST
5 KNOTS IN THE LATE MORNING AND AFTERNOON. PATCHY DENSE FOG IN
THE MORNING. SLIGHT CHANCE OF RAIN SHOWERS THROUGH THE DAY. WAVES
1 FOOT OR LESS.
MONDAY NIGHT
VARIABLE WINDS 10 KNOTS OR LESS BECOMING
NORTHWEST 5 KNOTS EARLY IN THE MORNING. SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING. SLIGHT CHANCE OF RAIN SHOWERS
THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
LSZ142-241600-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
617 AM CDT SUN MAY 24 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY
TODAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH LATE IN THE
AFTERNOON. PATCHY DENSE FOG UNTIL LATE AFTERNOON. SLIGHT CHANCE
OF THUNDERSTORMS LATE IN THE MORNING. SLIGHT CHANCE OF RAIN
SHOWERS IN THE LATE MORNING AND AFTERNOON. SLIGHT CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS. PATCHY DENSE FOG.
WAVES 1 FOOT OR LESS.
MONDAY
VARIABLE WINDS 10 KNOTS OR LESS. PATCHY DENSE FOG IN
THE MORNING. SLIGHT CHANCE OF RAIN SHOWERS IN THE MORNING. WAVES
1 FOOT OR LESS.
MONDAY NIGHT
VARIABLE WINDS 10 KNOTS OR LESS. SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING. SLIGHT CHANCE OF RAIN SHOWERS
THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
LSZ143-241600-
SILVER BAY HARBOR TO TWO HARBORS MN-
617 AM CDT SUN MAY 24 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY
TODAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH LATE IN THE
AFTERNOON. PATCHY DENSE FOG UNTIL LATE AFTERNOON. SLIGHT CHANCE
OF THUNDERSTORMS IN THE MORNING. SLIGHT CHANCE OF RAIN SHOWERS
THROUGH THE DAY, THEN SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS. PATCHY DENSE FOG
THROUGH THE NIGHT. SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
SLIGHT CHANCE OF RAIN SHOWERS THROUGH THE NIGHT. WAVES 1 FOOT OR
LESS.
MONDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHEAST
5 KNOTS IN THE LATE MORNING AND AFTERNOON. PATCHY DENSE FOG IN
THE MORNING. SLIGHT CHANCE OF RAIN SHOWERS IN THE MORNING. WAVES
1 FOOT OR LESS.
MONDAY NIGHT
NORTH 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.
LSZ144-241600-
TWO HARBORS TO DULUTH MN-
617 AM CDT SUN MAY 24 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY
TODAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH IN THE AFTERNOON.
AREAS OF DENSE FOG EARLY IN THE MORNING, THEN PATCHY DENSE FOG IN
THE LATE MORNING AND EARLY AFTERNOON. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS EARLY IN THE MORNING. SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS LATE IN
THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
WEST WIND 5 KNOTS BECOMING NORTH LATE IN THE EVENING,
THEN BECOMING WEST AFTER MIDNIGHT BECOMING SOUTHWEST EARLY IN THE
MORNING. PATCHY DENSE FOG THROUGH THE NIGHT. SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING. SLIGHT CHANCE OF RAIN SHOWERS
THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
MONDAY
SOUTH WIND 5 KNOTS BECOMING SOUTHEAST IN THE AFTERNOON.
PATCHY DENSE FOG IN THE MORNING. SLIGHT CHANCE OF RAIN SHOWERS IN
THE MORNING. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
EAST WIND 5 KNOTS BECOMING SOUTH LATE IN THE
EVENING, THEN BECOMING WEST AFTER MIDNIGHT. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
LSZ145-241600-
DULUTH MN TO PORT WING WI-
617 AM CDT SUN MAY 24 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY
TODAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH IN THE AFTERNOON.
AREAS OF DENSE FOG EARLY IN THE MORNING, THEN PATCHY DENSE FOG
LATE IN THE MORNING. AREAS OF DENSE FOG EARLY IN THE AFTERNOON.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE MORNING.
SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. SLIGHT CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 5 KNOTS BECOMING SOUTHEAST LATE IN THE
EVENING, THEN BECOMING SOUTHWEST AFTER MIDNIGHT. PATCHY DENSE FOG
THROUGH THE NIGHT. SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
SLIGHT CHANCE OF RAIN SHOWERS THROUGH THE NIGHT. WAVES 1 FOOT OR
LESS.
MONDAY
SOUTH WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
PATCHY DENSE FOG IN THE MORNING. SLIGHT CHANCE OF RAIN SHOWERS IN
THE MORNING. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
EAST WIND 5 KNOTS BECOMING SOUTHWEST AFTER
MIDNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
LSZ146-241600-
PORT WING TO SAND ISLAND WI-
617 AM CDT SUN MAY 24 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY
TODAY
SOUTHWEST WIND 5 KNOTS. AREAS OF DENSE FOG EARLY IN THE
MORNING, THEN PATCHY DENSE FOG IN THE LATE MORNING AND EARLY
AFTERNOON. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN
THE MORNING. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE IN
THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST
5 KNOTS LATE IN THE EVENING, THEN BECOMING WEST AFTER MIDNIGHT
BECOMING SOUTH EARLY IN THE MORNING. PATCHY DENSE FOG THROUGH THE
NIGHT. SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. SLIGHT
CHANCE OF RAIN SHOWERS THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
MONDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING NORTHEAST
5 KNOTS EARLY IN THE AFTERNOON, THEN BECOMING EAST LATE IN THE
AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE MORNING. WAVES
1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS, THEN BECOMING SOUTHWEST
5 KNOTS EARLY IN THE MORNING. MOSTLY CLOUDY IN THE EVENING THEN
BECOMING PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
LSZ147-241600-
SAND ISLAND TO BAYFIELD WI-
617 AM CDT SUN MAY 24 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY
TODAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH IN THE AFTERNOON.
AREAS OF DENSE FOG EARLY IN THE MORNING, THEN PATCHY DENSE FOG IN
THE LATE MORNING AND EARLY AFTERNOON. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS EARLY IN THE MORNING. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS LATE IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTH WIND 5 KNOTS BECOMING SOUTHWEST AFTER MIDNIGHT.
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. SLIGHT CHANCE OF
RAIN SHOWERS THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
MONDAY
SOUTHWEST WIND 5 KNOTS BECOMING EAST IN THE LATE
MORNING AND AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
SOUTHEAST WIND 5 KNOTS BECOMING NORTHWEST LATE IN
THE EVENING, THEN BECOMING SOUTHWEST AFTER MIDNIGHT. SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING. SLIGHT CHANCE OF RAIN
SHOWERS THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
LSZ150-241600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
617 AM CDT SUN MAY 24 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY
TODAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH IN THE AFTERNOON.
AREAS OF DENSE FOG EARLY IN THE MORNING, THEN WIDESPREAD DENSE
FOG IN THE LATE MORNING AND EARLY AFTERNOON. SLIGHT CHANCE OF
RAIN SHOWERS LATE IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING SOUTHWEST AFTER
MIDNIGHT. SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
MONDAY
SOUTH WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
SLIGHT CHANCE OF RAIN SHOWERS IN THE MORNING. WAVES 1 FOOT OR
LESS.
MONDAY NIGHT
SOUTH WIND 5 KNOTS BECOMING SOUTHWEST IN THE LATE
EVENING AND OVERNIGHT. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 FOOT OR LESS.
LSZ121-241600-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
617 AM CDT SUN MAY 24 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY
TODAY
SOUTHWEST WIND 5 KNOTS. PATCHY DENSE FOG IN THE MORNING.
SLIGHT CHANCE OF RAIN SHOWERS LATE IN THE AFTERNOON. WAVES 1 FOOT
OR LESS.
TONIGHT
SOUTHWEST WIND 5 KNOTS. SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING. SLIGHT CHANCE OF RAIN SHOWERS THROUGH THE NIGHT.
WAVES 1 FOOT OR LESS.
MONDAY
SOUTH WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF RAIN SHOWERS
IN THE MORNING. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
SOUTHWEST WIND 5 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
LSZ148-241600-
OAK POINT TO SAXON HARBOR WI-
617 AM CDT SUN MAY 24 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY
TODAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTHEAST IN THE
AFTERNOON. AREAS OF DENSE FOG EARLY IN THE MORNING, THEN PATCHY
DENSE FOG LATE IN THE MORNING. WIDESPREAD DENSE FOG EARLY IN THE
AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS LATE IN THE AFTERNOON.
WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 5 KNOTS. SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING. SLIGHT CHANCE OF RAIN SHOWERS THROUGH THE NIGHT.
WAVES 1 FOOT OR LESS.
MONDAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH IN THE AFTERNOON.
SLIGHT CHANCE OF RAIN SHOWERS IN THE MORNING. WAVES 1 FOOT OR
LESS.
MONDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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