935
FZUS53 KDLH 131221
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
721 AM CDT WED MAY 13 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.
LSZ140-131600-
GRAND PORTAGE TO GRAND MARAIS MN-
721 AM CDT WED MAY 13 2026
TODAY
NORTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST LATE IN THE AFTERNOON. MOSTLY CLOUDY EARLY
IN THE MORNING THEN BECOMING MOSTLY SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
WEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST IN THE LATE
EVENING AND OVERNIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
THURSDAY
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTH 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS AFTER MIDNIGHT. CHANCE OF RAIN SHOWERS IN THE EVENING,
THEN RAIN SHOWERS AFTER MIDNIGHT. WAVES 4 TO 6 FEET. WAVES
OCCASIONALLY TO 8 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
LSZ141-131600-
GRAND MARAIS TO TACONITE HARBOR MN-
721 AM CDT WED MAY 13 2026
TODAY
NORTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST LATE IN THE AFTERNOON. MOSTLY CLOUDY EARLY
IN THE MORNING THEN BECOMING MOSTLY SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
WEST WIND 5 KNOTS BECOMING NORTH IN THE LATE EVENING
AND EARLY MORNING, THEN BECOMING NORTHEAST EARLY IN THE MORNING.
MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
THURSDAY
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS LATE
IN THE AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTHEAST 5 TO 10 KNOTS AFTER MIDNIGHT. RAIN
SHOWERS LIKELY IN THE EVENING, THEN CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. WAVES 2 TO 4 FEET. A SMALL CRAFT ADVISORY MAY BE
NEEDED.
LSZ142-131600-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
721 AM CDT WED MAY 13 2026
TODAY
NORTHWEST WIND 5 KNOTS. PARTLY SUNNY IN THE MORNING THEN
CLEARING. WAVES 1 TO 2 FEET.
TONIGHT
NORTH WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
THURSDAY
NORTHEAST WIND 10 TO 15 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTH
EARLY IN THE MORNING. RAIN SHOWERS LIKELY IN THE EVENING, THEN
CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES 1 TO 2 FEET BUILDING
TO 1 TO 3 FEET IN THE LATE EVENING AND EARLY MORNING, THEN
SUBSIDING TO 1 TO 2 FEET EARLY IN THE MORNING.
LSZ143-131600-
SILVER BAY HARBOR TO TWO HARBORS MN-
721 AM CDT WED MAY 13 2026
TODAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTHWEST EARLY IN THE
AFTERNOON, THEN BECOMING SOUTHEAST LATE IN THE AFTERNOON. MOSTLY
SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
NORTH WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
THURSDAY
NORTHEAST WIND 15 TO 20 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS BECOMING SOUTH 5 TO 10 KNOTS EARLY IN THE
MORNING. RAIN SHOWERS LIKELY IN THE EVENING, THEN CHANCE OF RAIN
SHOWERS AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
LSZ144-131600-
TWO HARBORS TO DULUTH MN-
721 AM CDT WED MAY 13 2026
TODAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST EARLY IN
THE AFTERNOON, THEN BECOMING EAST LATE IN THE AFTERNOON. MOSTLY
SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS. CLEAR. WAVES 1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 15 TO 20 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. WAVES 1 TO 3 FEET.
THURSDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS BECOMING SOUTH WITH GUSTS TO AROUND 20 KNOTS
AFTER MIDNIGHT. RAIN SHOWERS LIKELY IN THE EVENING, THEN CHANCE
OF RAIN SHOWERS AFTER MIDNIGHT. WAVES 1 TO 2 FEET BUILDING TO
1 TO 3 FEET AFTER MIDNIGHT.
LSZ145-131600-
DULUTH MN TO PORT WING WI-
721 AM CDT WED MAY 13 2026
TODAY
WEST WIND 5 TO 10 KNOTS BECOMING EAST LATE IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS. CLEAR. WAVES 1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
IN THE AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON.
WAVES 1 TO 3 FEET.
THURSDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS BECOMING SOUTH
WITH GUSTS TO AROUND 25 KNOTS AFTER MIDNIGHT. RAIN SHOWERS LIKELY
IN THE EVENING, THEN CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES
1 TO 3 FEET.
LSZ146-131600-
PORT WING TO SAND ISLAND WI-
721 AM CDT WED MAY 13 2026
TODAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTH IN THE
AFTERNOON. MOSTLY CLOUDY EARLY IN THE MORNING THEN CLEARING.
WAVES 1 FOOT OR LESS.
TONIGHT
NORTH WIND 5 KNOTS BECOMING NORTHEAST AFTER MIDNIGHT.
MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
LATE IN THE AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE
AFTERNOON. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
EAST WIND 5 TO 10 KNOTS BECOMING SOUTH 10 TO
15 KNOTS WITH GUSTS TO AROUND 25 KNOTS AFTER MIDNIGHT. RAIN
SHOWERS LIKELY IN THE EVENING, THEN CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. WAVES 1 TO 2 FEET.
LSZ147-131600-
SAND ISLAND TO BAYFIELD WI-
721 AM CDT WED MAY 13 2026
TODAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING EAST LATE IN THE
AFTERNOON. MOSTLY CLOUDY EARLY IN THE MORNING THEN CLEARING.
WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS BECOMING NORTH IN THE LATE
EVENING AND EARLY MORNING, THEN BECOMING EAST EARLY IN THE
MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
THURSDAY
EAST WIND 10 TO 15 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS. RAIN SHOWERS LIKELY. WAVES 1 TO 2 FEET.
LSZ150-131600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
721 AM CDT WED MAY 13 2026
TODAY
WEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST LATE IN THE
AFTERNOON. MOSTLY CLOUDY EARLY IN THE MORNING THEN CLEARING.
WAVES 1 TO 2 FEET.
TONIGHT
SOUTH WIND 5 KNOTS BECOMING EAST AFTER MIDNIGHT.
MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
THURSDAY
EAST WIND 15 TO 20 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
SOUTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS RISING TO 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS
EARLY IN THE MORNING. RAIN SHOWERS LIKELY. WAVES 1 TO 3 FEET
BUILDING TO 3 TO 5 FEET IN THE LATE EVENING AND OVERNIGHT. A
SMALL CRAFT ADVISORY MAY BE NEEDED.
LSZ121-131600-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
721 AM CDT WED MAY 13 2026
TODAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING EAST LATE IN THE
AFTERNOON. MOSTLY CLOUDY EARLY IN THE MORNING THEN CLEARING.
WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHEAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
THURSDAY
EAST WIND 5 TO 10 KNOTS RISING TO 10 TO 15 KNOTS IN
THE AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON.
WAVES 1 TO 2 FEET.
THURSDAY NIGHT
SOUTH WIND 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS RISING TO 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
IN THE LATE EVENING AND OVERNIGHT. RAIN SHOWERS LIKELY THROUGH
THE NIGHT. WAVES 1 TO 2 FEET.
LSZ148-131600-
OAK POINT TO SAXON HARBOR WI-
721 AM CDT WED MAY 13 2026
TODAY
WEST WIND 5 TO 10 KNOTS BECOMING NORTH IN THE LATE
MORNING AND EARLY AFTERNOON, THEN BECOMING SOUTHEAST LATE IN THE
AFTERNOON. MOSTLY CLOUDY IN THE MORNING THEN CLEARING. WAVES 1 TO
2 FEET.
TONIGHT
SOUTHEAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
THURSDAY
EAST WIND 5 TO 10 KNOTS RISING TO 10 TO 15 KNOTS IN
THE AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
SOUTH WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
30 KNOTS. RAIN SHOWERS LIKELY. WAVES 1 TO 3 FEET BUILDING TO 2 TO
4 FEET AFTER MIDNIGHT.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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