819
FZUS53 KDLH 221000
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
500 AM CDT WED APR 22 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.
LSZ140-221600-
GRAND PORTAGE TO GRAND MARAIS MN-
500 AM CDT WED APR 22 2026
TODAY
EAST WIND 10 TO 15 KNOTS. SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET AFTER
MIDNIGHT.
THURSDAY
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE AFTERNOON. SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. WAVES 3 TO 5 FEET. WAVES OCCASIONALLY
TO 7 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
THURSDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO
25 KNOTS IN THE EVENING. RAIN SHOWERS AND CHANCE OF
THUNDERSTORMS. WAVES 4 TO 7 FEET. WAVES OCCASIONALLY TO 9 FEET. A
SMALL CRAFT ADVISORY MAY BE NEEDED.
LSZ141-221600-
GRAND MARAIS TO TACONITE HARBOR MN-
500 AM CDT WED APR 22 2026
TODAY
EAST WIND 10 TO 15 KNOTS. SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO
3 FEET.
THURSDAY
EAST WIND 15 TO 20 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE AFTERNOON. CHANCE OF RAIN SHOWERS
IN THE AFTERNOON. WAVES 3 TO 5 FEET. A SMALL CRAFT ADVISORY MAY
BE NEEDED.
THURSDAY NIGHT
EAST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS IN THE LATE EVENING AND OVERNIGHT. RAIN
SHOWERS AND CHANCE OF THUNDERSTORMS. WAVES 4 TO 6 FEET. WAVES
OCCASIONALLY TO 7 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
LSZ142-221600-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
500 AM CDT WED APR 22 2026
TODAY
NORTHEAST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 FOOT OR
LESS.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO
3 FEET.
THURSDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. WAVES 3 TO 5 FEET. A SMALL CRAFT
ADVISORY MAY BE NEEDED.
THURSDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS IN THE EVENING. RAIN SHOWERS AND CHANCE OF
THUNDERSTORMS. WAVES 3 TO 5 FEET. A SMALL CRAFT ADVISORY MAY BE
NEEDED.
LSZ143-221600-
SILVER BAY HARBOR TO TWO HARBORS MN-
500 AM CDT WED APR 22 2026
TODAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. WAVES 1 TO 3 FEET.
THURSDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
IN THE LATE MORNING AND AFTERNOON. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO
3 FEET BUILDING TO 2 TO 4 FEET IN THE AFTERNOON.
THURSDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. RAIN SHOWERS AND CHANCE OF
THUNDERSTORMS. WAVES 2 TO 4 FEET. A SMALL CRAFT ADVISORY MAY BE
NEEDED.
LSZ144-221600-
TWO HARBORS TO DULUTH MN-
500 AM CDT WED APR 22 2026
TODAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. WAVES 1 TO 3 FEET.
THURSDAY
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN THE
LATE MORNING AND AFTERNOON. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 3 FEET.
THURSDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. RAIN SHOWERS AND CHANCE OF
THUNDERSTORMS. WAVES 1 TO 3 FEET.
LSZ145-221600-
DULUTH MN TO PORT WING WI-
500 AM CDT WED APR 22 2026
TODAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
UNTIL EARLY MORNING. PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
THURSDAY
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN THE
LATE MORNING AND AFTERNOON. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 3 FEET.
THURSDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS EASING TO 5 TO 10 KNOTS EARLY IN THE MORNING.
RAIN SHOWERS AND CHANCE OF THUNDERSTORMS. WAVES 1 TO 3 FEET.
LSZ146-221600-
PORT WING TO SAND ISLAND WI-
500 AM CDT WED APR 22 2026
TODAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE EVENING. PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. WAVES 1 TO 2 FEET.
THURSDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
IN THE AFTERNOON. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 3 FEET.
THURSDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. RAIN SHOWERS AND
CHANCE OF THUNDERSTORMS. WAVES 2 TO 4 FEET.
LSZ147-221600-
SAND ISLAND TO BAYFIELD WI-
500 AM CDT WED APR 22 2026
TODAY
EAST WIND 5 TO 10 KNOTS BECOMING NORTHEAST LATE IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING EAST AFTER
MIDNIGHT. PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. WAVES 1 TO 2 FEET.
THURSDAY
EAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO
3 FEET.
THURSDAY NIGHT
EAST WIND 5 TO 10 KNOTS. RAIN SHOWERS AND
CHANCE OF THUNDERSTORMS. WAVES 2 TO 4 FEET.
LSZ150-221600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
500 AM CDT WED APR 22 2026
TODAY
EAST WIND 5 KNOTS BECOMING NORTHEAST 10 TO 15 KNOTS WITH
GUSTS TO AROUND 20 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO
2 FEET.
TONIGHT
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS
BECOMING SOUTHEAST 5 TO 10 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY IN
THE EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
THURSDAY
EAST 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 BUILDING TO 2 TO 4 FEET IN THE AFTERNOON. A SMALL
CRAFT ADVISORY MAY BE NEEDED.
THURSDAY NIGHT
EAST WIND 10 TO 15 KNOTS. RAIN SHOWERS AND
CHANCE OF THUNDERSTORMS. WAVES 3 TO 5 FEET. A SMALL CRAFT
ADVISORY MAY BE NEEDED.
LSZ121-221600-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
500 AM CDT WED APR 22 2026
TODAY
SOUTHEAST WIND 5 KNOTS BECOMING NORTHEAST IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTHEAST AFTER
MIDNIGHT. PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTH WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE MORNING AND AFTERNOON. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTHEAST WIND 5 TO 10 KNOTS. RAIN SHOWERS AND
CHANCE OF THUNDERSTORMS. WAVES 1 FOOT OR LESS.
LSZ148-221600-
OAK POINT TO SAXON HARBOR WI-
500 AM CDT WED APR 22 2026
TODAY
SOUTHEAST WIND 5 KNOTS BECOMING NORTHEAST IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTHEAST WITH
GUSTS TO AROUND 20 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY IN THE
EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
THURSDAY
SOUTH WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE MORNING AND AFTERNOON. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
SOUTHEAST WIND 5 TO 10 KNOTS. RAIN SHOWERS AND
CHANCE OF THUNDERSTORMS. WAVES 1 TO 2 FEET.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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