259
FZUS53 KDLH 252133
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
432 PM CDT MON MAY 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-
432 PM CDT MON MAY 25 2026
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING WEST AFTER
MIDNIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES 1 TO
2 FEET.
TUESDAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE LATE
MORNING AND AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
SOUTHWEST WIND 5 KNOTS BECOMING NORTH LATE IN
THE EVENING, THEN BECOMING NORTHEAST AFTER MIDNIGHT. MOSTLY
CLEAR. WAVES 1 FOOT OR LESS.
WEDNESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
IN THE LATE MORNING AND EARLY AFTERNOON. SUNNY. WAVES 1 TO
2 FEET.
LSZ141-260400-
GRAND MARAIS TO TACONITE HARBOR MN-
432 PM CDT MON MAY 25 2026
TONIGHT
EAST WIND 5 KNOTS BECOMING SOUTHWEST LATE IN THE
EVENING, THEN BECOMING WEST AFTER MIDNIGHT. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. WAVES 1 FOOT OR LESS.
TUESDAY
NORTHWEST WIND 5 KNOTS BECOMING EAST LATE IN THE
MORNING, THEN BECOMING SOUTH IN THE AFTERNOON. SUNNY. WAVES
1 FOOT OR LESS.
TUESDAY NIGHT
VARIABLE WINDS 10 KNOTS OR LESS BECOMING
NORTHEAST 5 KNOTS IN THE LATE EVENING AND OVERNIGHT. MOSTLY
CLEAR. WAVES 1 FOOT OR LESS.
WEDNESDAY
EAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS EARLY
IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
LSZ142-260400-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
432 PM CDT MON MAY 25 2026
TONIGHT
EAST WIND 5 KNOTS BECOMING SOUTHWEST IN THE LATE
EVENING AND EARLY MORNING, THEN BECOMING WEST LATE IN THE NIGHT.
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING. WAVES 1 FOOT
OR LESS.
TUESDAY
NORTHWEST WIND 5 KNOTS EARLY IN THE MORNING BECOMING
NORTHEAST, THEN BECOMING EAST EARLY IN THE AFTERNOON BECOMING
VARIABLE 10 KNOTS OR LESS. SUNNY. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTHEAST
5 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES
1 TO 2 FEET.
LSZ143-260400-
SILVER BAY HARBOR TO TWO HARBORS MN-
432 PM CDT MON MAY 25 2026
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST LATE
IN THE EVENING, THEN BECOMING WEST AFTER MIDNIGHT. CHANCE OF RAIN
SHOWERS EARLY IN THE EVENING. CHANCE OF THUNDERSTORMS IN THE
EVENING. SLIGHT CHANCE OF RAIN SHOWERS LATE IN THE EVENING.
PATCHY FOG LATE IN THE NIGHT. WAVES 1 FOOT OR LESS.
TUESDAY
NORTHWEST WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
MORNING AND AFTERNOON. PATCHY FOG IN THE MORNING. WAVES 1 FOOT OR
LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
WEDNESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
IN THE LATE MORNING AND AFTERNOON. MOSTLY SUNNY. WAVES 1 TO
2 FEET.
LSZ144-260400-
TWO HARBORS TO DULUTH MN-
432 PM CDT MON MAY 25 2026
TONIGHT
EAST WIND 5 KNOTS BECOMING SOUTHWEST LATE IN THE
EVENING, THEN BECOMING WEST AFTER MIDNIGHT. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING. PATCHY FOG LATE IN THE
NIGHT. WAVES 1 FOOT OR LESS.
TUESDAY
NORTH WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
MORNING AND AFTERNOON. PATCHY FOG IN THE MORNING. WAVES 1 FOOT OR
LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
WEDNESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
IN THE LATE MORNING AND AFTERNOON. MOSTLY SUNNY. WAVES 1 TO
3 FEET.
LSZ145-260400-
DULUTH MN TO PORT WING WI-
432 PM CDT MON MAY 25 2026
TONIGHT
NORTHEAST WIND 5 KNOTS BECOMING SOUTHWEST LATE IN THE
EVENING, THEN BECOMING WEST AFTER MIDNIGHT. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING. PATCHY FOG LATE IN THE
NIGHT. WAVES 1 FOOT OR LESS.
TUESDAY
NORTHWEST WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
MORNING AND AFTERNOON. PATCHY FOG IN THE MORNING. WAVES 1 FOOT OR
LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 FOOT OR LESS.
WEDNESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
IN THE LATE MORNING AND AFTERNOON. SUNNY. WAVES 1 TO 3 FEET.
LSZ146-260400-
PORT WING TO SAND ISLAND WI-
432 PM CDT MON MAY 25 2026
TONIGHT
NORTH WIND 5 TO 10 KNOTS BECOMING SOUTHWEST IN THE
LATE EVENING AND EARLY MORNING, THEN BECOMING SOUTHWEST 5 KNOTS
LATE IN THE NIGHT. SLIGHT CHANCE OF RAIN SHOWERS EARLY IN THE
EVENING. SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. CHANCE OF
RAIN SHOWERS LATE IN THE EVENING. WAVES 1 FOOT OR LESS.
TUESDAY
WEST WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
MORNING AND AFTERNOON. PATCHY FOG IN THE MORNING. WAVES 1 FOOT OR
LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
WEDNESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
IN THE LATE MORNING AND AFTERNOON. MOSTLY SUNNY. WAVES 1 TO
2 FEET.
LSZ147-260400-
SAND ISLAND TO BAYFIELD WI-
432 PM CDT MON MAY 25 2026
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING WEST AFTER
MIDNIGHT. CHANCE OF RAIN SHOWERS IN THE EVENING. SLIGHT CHANCE OF
THUNDERSTORMS THROUGH THE NIGHT. SLIGHT CHANCE OF RAIN SHOWERS
AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
TUESDAY
NORTHWEST WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
MORNING AND EARLY AFTERNOON, THEN BECOMING EAST LATE IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
LSZ150-260400-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
432 PM CDT MON MAY 25 2026
TONIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING WEST LATE IN THE
NIGHT. SLIGHT CHANCE OF RAIN SHOWERS EARLY IN THE EVENING. SLIGHT
CHANCE OF THUNDERSTORMS UNTIL EARLY MORNING. CHANCE OF RAIN
SHOWERS IN THE LATE EVENING AND EARLY MORNING. WAVES 1 TO 2 FEET.
TUESDAY
NORTHWEST WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
MORNING AND EARLY AFTERNOON, THEN BECOMING EAST LATE IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 FOOT OR LESS.
WEDNESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
IN THE LATE MORNING AND AFTERNOON. MOSTLY SUNNY. WAVES 1 TO
3 FEET BUILDING TO 2 TO 4 FEET IN THE AFTERNOON.
LSZ121-260400-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
432 PM CDT MON MAY 25 2026
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS
LATE IN THE EVENING. SLIGHT CHANCE OF THUNDERSTORMS IN THE LATE
EVENING AND EARLY MORNING. SLIGHT CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
TUESDAY
NORTHWEST WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
MORNING AND AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTHEAST
5 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
LSZ148-260400-
OAK POINT TO SAXON HARBOR WI-
432 PM CDT MON MAY 25 2026
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE LATE EVENING AND EARLY
MORNING. WAVES 1 FOOT OR LESS.
TUESDAY
NORTHWEST WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
MORNING AND AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTH 5 KNOTS
AFTER MIDNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. MOSTLY SUNNY. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET
LATE IN THE AFTERNOON.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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