618
FZUS53 KDLH 312200
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
500 PM CDT SUN MAY 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.
LSZ140-010400-
GRAND PORTAGE TO GRAND MARAIS MN-
500 PM CDT SUN MAY 31 2026
TONIGHT
SOUTHEAST WIND 5 KNOTS BECOMING NORTH AFTER MIDNIGHT.
MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
MONDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE MORNING AND AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS
BUILDING TO 2 TO 4 FEET IN THE LATE MORNING AND AFTERNOON.
MONDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS IN THE EVENING. MOSTLY CLEAR. WAVES 1 TO 3 FEET
SUBSIDING TO 1 TO 2 FEET IN THE LATE EVENING AND OVERNIGHT.
TUESDAY
EAST WIND 5 KNOTS BECOMING SOUTHEAST IN THE AFTERNOON.
SUNNY. WAVES 1 FOOT OR LESS.
LSZ141-010400-
GRAND MARAIS TO TACONITE HARBOR MN-
500 PM CDT SUN MAY 31 2026
TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS BECOMING NORTH 5 KNOTS
LATE IN THE NIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
MONDAY
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS. SUNNY.
WAVES 1 TO 2 FEET BUILDING TO 2 TO 4 FEET IN THE AFTERNOON.
MONDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS IN THE EVENING. MOSTLY CLEAR. WAVES 1 TO 3 FEET
SUBSIDING TO 1 TO 2 FEET IN THE LATE EVENING AND OVERNIGHT.
TUESDAY
EAST WIND 5 KNOTS UNTIL LATE AFTERNOON BECOMING
VARIABLE 10 KNOTS OR LESS. SUNNY. WAVES 1 FOOT OR LESS.
LSZ142-010400-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
500 PM CDT SUN MAY 31 2026
TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS BECOMING NORTHEAST
5 KNOTS LATE IN THE EVENING, THEN BECOMING VARIABLE 10 KNOTS OR
LESS AFTER MIDNIGHT BECOMING NORTH 5 KNOTS LATE IN THE NIGHT.
PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS LATE
IN THE AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
MONDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. MOSTLY CLEAR. WAVES 1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 5 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
LSZ143-010400-
SILVER BAY HARBOR TO TWO HARBORS MN-
500 PM CDT SUN MAY 31 2026
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
MONDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SUNNY. WAVES 1 TO 3 FEET.
MONDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS UNTIL EARLY MORNING. MOSTLY CLEAR. WAVES 1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 TO
2 FEET.
LSZ144-010400-
TWO HARBORS TO DULUTH MN-
500 PM CDT SUN MAY 31 2026
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY CLOUDY IN THE
EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
MONDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS. MOSTLY SUNNY. WAVES 1 TO 3 FEET.
MONDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS. MOSTLY CLEAR. WAVES 1 TO 3 FEET.
TUESDAY
EAST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
LSZ145-010400-
DULUTH MN TO PORT WING WI-
500 PM CDT SUN MAY 31 2026
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY CLOUDY IN THE
EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
MONDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. MOSTLY SUNNY. WAVES 1 TO 3 FEET.
MONDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS. PARTLY CLOUDY. WAVES 1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 TO
2 FEET.
LSZ146-010400-
PORT WING TO SAND ISLAND WI-
500 PM CDT SUN MAY 31 2026
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY CLOUDY THEN
BECOMING MOSTLY CLOUDY AFTER MIDNIGHT THEN BECOMING PARTLY
CLOUDY. WAVES 1 FOOT OR LESS.
MONDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SUNNY. WAVES 1 TO 3 FEET.
MONDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS EASING TO 5 KNOTS EARLY IN THE MORNING. MOSTLY
CLEAR. WAVES 1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 TO
2 FEET.
LSZ147-010400-
SAND ISLAND TO BAYFIELD WI-
500 PM CDT SUN MAY 31 2026
TONIGHT
EAST WIND 5 KNOTS BECOMING NORTH AFTER MIDNIGHT.
PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
MONDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 5 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
LSZ150-010400-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
500 PM CDT SUN MAY 31 2026
TONIGHT
NORTHEAST WIND 5 KNOTS. PARTLY CLOUDY THEN BECOMING
MOSTLY CLOUDY AFTER MIDNIGHT THEN BECOMING PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
MONDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE AFTERNOON. SUNNY. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET
LATE IN THE AFTERNOON.
MONDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS IN THE EVENING. MOSTLY CLEAR. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 2 FEET EARLY IN THE MORNING.
TUESDAY
NORTHEAST WIND 5 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
LSZ121-010400-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
500 PM CDT SUN MAY 31 2026
TONIGHT
NORTHEAST WIND 5 KNOTS IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTH 5 KNOTS LATE IN
THE NIGHT. PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY AFTER
MIDNIGHT THEN BECOMING PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS LATE
IN THE AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
MONDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
TUESDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING NORTHEAST
5 TO 10 KNOTS IN THE LATE MORNING AND AFTERNOON. SUNNY. WAVES
1 FOOT OR LESS.
LSZ148-010400-
OAK POINT TO SAXON HARBOR WI-
500 PM CDT SUN MAY 31 2026
TONIGHT
NORTHEAST WIND 5 KNOTS BECOMING NORTH AFTER MIDNIGHT.
PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS LATE
IN THE AFTERNOON. SUNNY. WAVES 1 TO 2 FEET BUILDING TO 1 TO
3 FEET LATE IN THE AFTERNOON.
MONDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. MOSTLY CLEAR. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 2 FEET EARLY IN THE MORNING.
TUESDAY
NORTHEAST WIND 5 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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