821
FZUS53 KDLH 220138
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
837 PM CDT MON SEP 21 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.
LSZ140-221000-
GRAND PORTAGE TO GRAND MARAIS MN-
837 PM CDT MON SEP 21 2026
REST OF TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 TO 2 FEET.
TUESDAY
EAST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
EAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE EVENING. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
WEDNESDAY
SOUTHEAST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 TO
2 FEET.
LSZ141-221000-
GRAND MARAIS TO TACONITE HARBOR MN-
837 PM CDT MON SEP 21 2026
REST OF TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY
EARLY IN THE EVENING THEN CLEARING. WAVES 1 TO 2 FEET.
TUESDAY
EAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS LATE IN
THE AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
EAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE EVENING. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
WEDNESDAY
EAST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
LSZ142-221000-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
837 PM CDT MON SEP 21 2026
REST OF TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. MOSTLY CLOUDY EARLY IN THE EVENING
THEN CLEARING. WAVES 1 TO 2 FEET.
TUESDAY
EAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS LATE IN
THE AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
EAST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS EASING TO 5 KNOTS EARLY IN THE MORNING. PARTLY CLOUDY.
WAVES 1 TO 2 FEET.
WEDNESDAY
SOUTHEAST WIND 5 KNOTS BECOMING EAST WITH GUSTS TO
AROUND 20 KNOTS LATE IN THE AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
LSZ143-221000-
SILVER BAY HARBOR TO TWO HARBORS MN-
837 PM CDT MON SEP 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. MOSTLY CLOUDY EARLY IN THE EVENING
THEN CLEARING. WAVES 1 TO 2 FEET.
TUESDAY
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS. SUNNY.
WAVES 1 TO 2 FEET.
TUESDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 25 KNOTS BECOMING EAST 5 KNOTS AFTER MIDNIGHT. MOSTLY
CLEAR. WAVES 1 TO 2 FEET.
WEDNESDAY
SOUTHEAST WIND 5 KNOTS BECOMING EAST 10 TO 15 KNOTS
WITH GUSTS TO AROUND 25 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO
2 FEET.
LSZ144-221000-
TWO HARBORS TO DULUTH MN-
837 PM CDT MON SEP 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TONIGHT
NORTHEAST WIND 15 TO 20 KNOTS EASING TO 5 TO
10 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY EARLY IN THE EVENING THEN
CLEARING. WAVES 1 TO 3 FEET.
TUESDAY
EAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. SUNNY. WAVES 1 TO 2 FEET BUILDING TO 1 TO 3 FEET LATE
IN THE AFTERNOON.
TUESDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS BECOMING EAST 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS IN THE LATE EVENING AND EARLY MORNING, THEN BECOMING
SOUTHEAST EARLY IN THE MORNING. PARTLY CLOUDY. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 2 FEET IN THE LATE EVENING AND OVERNIGHT.
WEDNESDAY
EAST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS RISING TO 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
LATE IN THE AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
LSZ145-221000-
DULUTH MN TO PORT WING WI-
837 PM CDT MON SEP 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TONIGHT
NORTHEAST WIND 15 TO 20 KNOTS BECOMING EAST
5 TO 10 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY EARLY IN THE EVENING
THEN CLEARING. WAVES 1 TO 3 FEET.
TUESDAY
EAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. SUNNY. WAVES 1 TO 2 FEET BUILDING TO 1 TO 3 FEET LATE
IN THE AFTERNOON.
TUESDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS BECOMING EAST 5 TO 10 KNOTS IN THE LATE EVENING
AND EARLY MORNING, THEN BECOMING SOUTHEAST EARLY IN THE MORNING.
PARTLY CLOUDY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 2 FEET IN THE
LATE EVENING AND OVERNIGHT.
WEDNESDAY
SOUTHEAST WIND 5 KNOTS BECOMING EAST 10 TO 15 KNOTS
WITH GUSTS TO AROUND 20 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO
2 FEET.
LSZ146-221000-
PORT WING TO SAND ISLAND WI-
837 PM CDT MON SEP 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TONIGHT
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS EASING TO 5 KNOTS TOWARD DAYBREAK. MOSTLY CLOUDY EARLY
IN THE EVENING THEN BECOMING PARTLY CLOUDY. WAVES 1 TO 2 FEET.
TUESDAY
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTHEAST 5 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR.
WAVES 1 TO 2 FEET.
WEDNESDAY
SOUTHEAST WIND 5 KNOTS BECOMING EAST WITH GUSTS TO
AROUND 20 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
LSZ147-221000-
SAND ISLAND TO BAYFIELD WI-
837 PM CDT MON SEP 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TONIGHT
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS EASING TO 5 KNOTS TOWARD DAYBREAK. MOSTLY CLOUDY EARLY
IN THE EVENING THEN BECOMING PARTLY CLOUDY. WAVES 1 TO 2 FEET.
TUESDAY
EAST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS
BECOMING NORTHEAST 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS
LATE IN THE AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTHEAST 5 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR.
WAVES 1 TO 2 FEET.
WEDNESDAY
SOUTHEAST WIND 5 KNOTS BECOMING EAST WITH GUSTS TO
AROUND 20 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
LSZ150-221000-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
837 PM CDT MON SEP 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TONIGHT
EAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS EASING TO 5 TO 10 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY
EARLY IN THE EVENING THEN BECOMING PARTLY CLOUDY. WAVES 1 TO
3 FEET.
TUESDAY
EAST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS
BECOMING NORTHEAST 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
LATE IN THE AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING SOUTHEAST 5 TO 10 KNOTS AFTER MIDNIGHT. MOSTLY
CLEAR. WAVES 1 TO 2 FEET.
WEDNESDAY
SOUTHEAST WIND 5 KNOTS BECOMING EAST WITH GUSTS TO
AROUND 20 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
LSZ121-221000-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
837 PM CDT MON SEP 21 2026
REST OF TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING EAST
AFTER MIDNIGHT. MOSTLY CLOUDY EARLY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. WAVES 1 TO 2 FEET.
TUESDAY
EAST WIND 5 KNOTS BECOMING NORTHEAST 10 TO 15 KNOTS
WITH GUSTS TO AROUND 20 KNOTS IN THE AFTERNOON. SUNNY. WAVES
1 FOOT OR LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS WITH GUSTS TO
AROUND 20 KNOTS BECOMING SOUTHEAST AFTER MIDNIGHT. MOSTLY CLEAR.
WAVES 1 FOOT OR LESS.
WEDNESDAY
SOUTHEAST WIND 5 KNOTS BECOMING EAST IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
LSZ148-221000-
OAK POINT TO SAXON HARBOR WI-
837 PM CDT MON SEP 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TONIGHT
EAST WIND 5 TO 10 KNOTS EASING TO 5 KNOTS
TOWARD DAYBREAK. MOSTLY CLOUDY EARLY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. WAVES 1 TO 3 FEET.
TUESDAY
EAST WIND 5 KNOTS BECOMING NORTHEAST 10 TO 15 KNOTS
WITH GUSTS TO AROUND 25 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO
2 FEET.
TUESDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 25 KNOTS BECOMING SOUTHEAST 5 TO 10 KNOTS IN THE LATE
EVENING AND OVERNIGHT. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
WEDNESDAY
SOUTHEAST WIND 5 KNOTS BECOMING NORTHEAST IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page