579
FZUS53 KDLH 130746
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
246 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-
246 AM CDT WED MAY 13 2026
TODAY
NORTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY EARLY IN THE
MORNING THEN BECOMING MOSTLY SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
NORTHWEST WIND 5 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-
246 AM CDT WED MAY 13 2026
TODAY
NORTHWEST WIND 5 KNOTS BECOMING WEST LATE IN THE
AFTERNOON. MOSTLY CLOUDY EARLY IN THE MORNING THEN BECOMING
MOSTLY SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
NORTHWEST 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.
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 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-
246 AM CDT WED MAY 13 2026
TODAY
NORTHWEST WIND 5 KNOTS BECOMING WEST LATE IN THE
AFTERNOON. PARTLY SUNNY IN THE MORNING THEN CLEARING. WAVES 1 TO
2 FEET.
TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS BECOMING NORTHEAST
5 KNOTS EARLY IN THE MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
THURSDAY
EAST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTHEAST
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 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-
246 AM CDT WED MAY 13 2026
TODAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTH LATE IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
EAST 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.
THURSDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
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 AFTER MIDNIGHT. 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-
246 AM CDT WED MAY 13 2026
TODAY
NORTHWEST 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
AFTER MIDNIGHT. GUSTS UP TO 20 KNOTS. 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-
246 AM CDT WED MAY 13 2026
TODAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST 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
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. 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-
246 AM CDT WED MAY 13 2026
TODAY
WEST 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
EAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
THURSDAY
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. 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 20 KNOTS EARLY IN THE MORNING. 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-
246 AM CDT WED MAY 13 2026
TODAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTH LATE IN THE
AFTERNOON. MOSTLY CLOUDY EARLY IN THE MORNING THEN CLEARING.
WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHEAST WIND 5 KNOTS IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING SOUTHEAST 5 KNOTS EARLY
IN THE MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
THURSDAY
EAST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTHEAST WIND 5 TO 10 KNOTS WITH GUSTS TO
AROUND 20 KNOTS BECOMING SOUTH 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS AFTER MIDNIGHT. RAIN SHOWERS LIKELY. WAVES 1 TO
2 FEET.
LSZ150-131600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
246 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
SOUTHEAST WIND 5 KNOTS. 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
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTH
15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS IN THE LATE EVENING
AND OVERNIGHT. 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-
246 AM CDT WED MAY 13 2026
TODAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST LATE IN
THE AFTERNOON. MOSTLY CLOUDY EARLY IN THE MORNING THEN CLEARING.
WAVES 1 FOOT OR LESS.
TONIGHT
EAST WIND 5 KNOTS IN THE EVENING BECOMING VARIABLE
10 KNOTS OR LESS, THEN BECOMING SOUTHEAST 5 KNOTS EARLY IN THE
MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
THURSDAY
EAST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTH WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. RAIN SHOWERS LIKELY THROUGH THE NIGHT. WAVES 1 TO
2 FEET.
LSZ148-131600-
OAK POINT TO SAXON HARBOR WI-
246 AM CDT WED MAY 13 2026
TODAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTH EARLY IN THE
AFTERNOON, THEN BECOMING EAST LATE IN THE AFTERNOON. MOSTLY
CLOUDY IN THE MORNING THEN CLEARING. WAVES 1 TO 2 FEET.
TONIGHT
EAST WIND 5 KNOTS BECOMING SOUTHEAST AFTER MIDNIGHT.
MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
THURSDAY
EAST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
SOUTH WIND 5 TO 10 KNOTS RISING TO 15 TO
20 KNOTS WITH GUSTS TO AROUND 25 KNOTS IN THE LATE EVENING AND
OVERNIGHT. 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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