586
FZUS53 KDLH 211515
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
1015 AM 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.
LSZ140-212200-
GRAND PORTAGE TO GRAND MARAIS MN-
1015 AM CDT MON SEP 21 2026
REST OF TODAY
EAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY IN THE
LATE MORNING AND EARLY AFTERNOON THEN BECOMING MOSTLY SUNNY.
WAVES 1 TO 2 FEET.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 1 TO
2 FEET.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS BECOMING EAST IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
EAST WIND 5 TO 10 KNOTS BECOMING SOUTHEAST EARLY
IN THE MORNING. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
LSZ141-212200-
GRAND MARAIS TO TACONITE HARBOR MN-
1015 AM CDT MON SEP 21 2026
REST OF TODAY
EAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES
1 TO 2 FEET.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 1 TO
2 FEET.
TUESDAY
EAST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
EAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
LSZ142-212200-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
1015 AM CDT MON SEP 21 2026
REST OF TODAY
EAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE AFTERNOON. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE EVENING. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
TUESDAY
EAST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
EAST WIND 5 TO 10 KNOTS EASING TO 5 KNOTS EARLY
IN THE MORNING. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
LSZ143-212200-
SILVER BAY HARBOR TO TWO HARBORS MN-
1015 AM CDT MON SEP 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TODAY
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS LATE. MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
UNTIL EARLY MORNING. PARTLY CLOUDY. WAVES 1 TO 3 FEET.
TUESDAY
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN THE
AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS EASING TO 5 KNOTS EARLY IN THE MORNING. MOSTLY CLEAR.
WAVES 1 TO 2 FEET.
LSZ144-212200-
TWO HARBORS TO DULUTH MN-
1015 AM CDT MON SEP 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TODAY
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS IN THE AFTERNOON. MOSTLY CLOUDY.
WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET LATE.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
MOSTLY CLOUDY 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.
MOSTLY CLEAR. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 2 FEET IN THE
LATE EVENING AND OVERNIGHT.
LSZ145-212200-
DULUTH MN TO PORT WING WI-
1015 AM CDT MON SEP 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TODAY
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS. MOSTLY CLOUDY. WAVES 1 TO 3 FEET BUILDING TO
2 TO 4 FEET LATE.
TONIGHT
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS. MOSTLY
CLOUDY IN THE EVENING THEN CLEARING. WAVES 2 TO 4 FEET SUBSIDING
TO 1 TO 3 FEET IN THE LATE EVENING AND OVERNIGHT.
TUESDAY
EAST WIND 5 TO 10 KNOTS BECOMING NORTHEAST 15 TO
20 KNOTS WITH GUSTS TO AROUND 25 KNOTS IN THE AFTERNOON. SUNNY.
WAVES 1 TO 2 FEET BUILDING TO 2 TO 4 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.
MOSTLY CLEAR. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 2 FEET IN THE
LATE EVENING AND OVERNIGHT.
LSZ146-212200-
PORT WING TO SAND ISLAND WI-
1015 AM CDT MON SEP 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TODAY
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
TONIGHT
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN THE
EVENING. MOSTLY CLOUDY IN THE EVENING THEN CLEARING. WAVES 1 TO
2 FEET.
TUESDAY
EAST WIND 5 TO 10 KNOTS BECOMING NORTHEAST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS 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 TO 10 KNOTS AFTER MIDNIGHT. MOSTLY
CLEAR. WAVES 1 TO 2 FEET.
LSZ147-212200-
SAND ISLAND TO BAYFIELD WI-
1015 AM CDT MON SEP 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TODAY
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHEAST WITH GUSTS TO AROUND 20 KNOTS LATE.
MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
TONIGHT
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS
EASING TO 5 TO 10 KNOTS EARLY IN THE MORNING. PARTLY CLOUDY.
WAVES 1 TO 2 FEET.
TUESDAY
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING EAST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS 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 TO 10 KNOTS AFTER MIDNIGHT. MOSTLY
CLEAR. WAVES 1 TO 2 FEET.
LSZ150-212200-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
1015 AM CDT MON SEP 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TODAY
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHEAST WITH GUSTS TO AROUND 25 KNOTS LATE.
MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
TONIGHT
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
BECOMING SOUTHEAST 5 TO 10 KNOTS EARLY IN THE MORNING. PARTLY
CLOUDY. WAVES 1 TO 3 FEET.
TUESDAY
EAST WIND 5 TO 10 KNOTS BECOMING NORTHEAST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS 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 TO 10 KNOTS AFTER MIDNIGHT. MOSTLY
CLEAR. WAVES 1 TO 2 FEET.
LSZ121-212200-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
1015 AM CDT MON SEP 21 2026
REST OF TODAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
TONIGHT
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
BECOMING SOUTHEAST 5 KNOTS EARLY IN THE MORNING. MOSTLY CLOUDY 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 TO
2 FEET.
TUESDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS BECOMING EAST 5 TO 10 KNOTS LATE IN THE EVENING,
THEN BECOMING SOUTHEAST AFTER MIDNIGHT. MOSTLY CLEAR. WAVES 1 TO
2 FEET.
LSZ148-212200-
OAK POINT TO SAXON HARBOR WI-
1015 AM CDT MON SEP 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
REST OF TODAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS. MOSTLY CLOUDY. WAVES 1 TO 2 FEET BUILDING TO 1 TO
3 FEET LATE.
TONIGHT
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
BECOMING SOUTHEAST 5 TO 10 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY 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 20 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO
2 FEET.
TUESDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS BECOMING SOUTHEAST 5 TO 10 KNOTS IN THE LATE
EVENING AND EARLY MORNING, THEN EASING TO 5 KNOTS EARLY IN THE
MORNING. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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