921
FZUS53 KDLH 041000
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
500 AM CDT SUN OCT 4 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.
LSZ140-041600-
GRAND PORTAGE TO GRAND MARAIS MN-
500 AM CDT SUN OCT 4 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
TODAY
NORTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 30 KNOTS
DECREASING TO 25 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO
3 FEET.
TONIGHT
NORTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR. WAVES 1 TO
2 FEET.
MONDAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
SOUTH WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. MOSTLY CLOUDY. WAVES 1 TO 2 FEET BUILDING TO 2 TO
4 FEET AFTER MIDNIGHT. A SMALL CRAFT ADVISORY MAY BE NEEDED.
LSZ141-041600-
GRAND MARAIS TO TACONITE HARBOR MN-
500 AM CDT SUN OCT 4 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON
TODAY
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
NORTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE EVENING. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
MONDAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTH IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
SOUTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY.
WAVES 1 TO 2 FEET.
LSZ142-041600-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
500 AM CDT SUN OCT 4 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON
TODAY
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS EASING TO 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN
THE AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
MONDAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTH IN THE AFTERNOON.
MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
SOUTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY.
WAVES 1 FOOT OR LESS.
LSZ143-041600-
SILVER BAY HARBOR TO TWO HARBORS MN-
500 AM CDT SUN OCT 4 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING
TODAY
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS IN THE LATE MORNING AND AFTERNOON. SUNNY.
WAVES 1 FOOT OR LESS.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
MONDAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTH EARLY IN THE
AFTERNOON, THEN BECOMING SOUTHEAST LATE IN THE AFTERNOON. SUNNY.
WAVES 1 FOOT OR LESS.
MONDAY NIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTH EARLY
IN THE MORNING. MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. WAVES 1 FOOT OR LESS.
LSZ144-041600-
TWO HARBORS TO DULUTH MN-
500 AM CDT SUN OCT 4 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING
TODAY
NORTHWEST WIND 10 TO 15 KNOTS EASING TO 5 TO 10 KNOTS IN
THE LATE MORNING AND AFTERNOON. GUSTS UP TO 20 KNOTS. SUNNY.
WAVES 1 FOOT OR LESS.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
MONDAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTHEAST LATE IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
EAST WIND 5 TO 10 KNOTS BECOMING SOUTH AFTER
MIDNIGHT. MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. WAVES 1 FOOT OR LESS.
LSZ145-041600-
DULUTH MN TO PORT WING WI-
500 AM CDT SUN OCT 4 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING
TODAY
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
MONDAY
WEST WIND 5 KNOTS BECOMING EAST LATE IN THE AFTERNOON.
SUNNY. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
EAST WIND 5 TO 10 KNOTS BECOMING SOUTH 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS EARLY IN THE MORNING.
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
LSZ146-041600-
PORT WING TO SAND ISLAND WI-
500 AM CDT SUN OCT 4 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON
TODAY
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING WEST WITH GUSTS TO AROUND 20 KNOTS LATE IN THE
AFTERNOON. SUNNY. WAVES 1 TO 3 FEET SUBSIDING TO 1 TO 2 FEET IN
THE AFTERNOON.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE EVENING. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
MONDAY
NORTHWEST WIND 5 KNOTS BECOMING WEST EARLY IN THE
AFTERNOON, THEN BECOMING EAST LATE IN THE AFTERNOON. SUNNY. WAVES
1 FOOT OR LESS.
MONDAY NIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTH WITH
GUSTS TO AROUND 20 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY IN THE
EVENING THEN BECOMING PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
LSZ147-041600-
SAND ISLAND TO BAYFIELD WI-
500 AM CDT SUN OCT 4 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON
TODAY
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS EASING TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS LATE IN
THE AFTERNOON. SUNNY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET
IN THE AFTERNOON.
TONIGHT
NORTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE EVENING. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
MONDAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTH EARLY IN
THE AFTERNOON, THEN BECOMING SOUTHEAST LATE IN THE AFTERNOON.
SUNNY. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTH WITH
GUSTS TO AROUND 20 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY. WAVES
1 FOOT OR LESS.
LSZ150-041600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
500 AM CDT SUN OCT 4 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON
TODAY
NORTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 30 KNOTS
DECREASING TO 20 KNOTS. SUNNY. WAVES 3 TO 5 FEET SUBSIDING TO
1 TO 3 FEET LATE IN THE AFTERNOON. WAVES OCCASIONALLY TO 7 FEET.
TONIGHT
NORTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING INCREASING TO 25 KNOTS, THEN DECREASING TO
20 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR. WAVES 1 TO 3 FEET.
MONDAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST EARLY
IN THE AFTERNOON, THEN BECOMING SOUTHEAST LATE IN THE AFTERNOON.
SUNNY. WAVES 1 TO 2 FEET.
MONDAY NIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTH 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS AFTER MIDNIGHT. MOSTLY
CLOUDY. WAVES 1 TO 2 FEET.
LSZ121-041600-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
500 AM CDT SUN OCT 4 2026
TODAY
NORTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS.
SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
MONDAY
NORTHWEST WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
SUNNY. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
EAST WIND 5 KNOTS BECOMING SOUTH WITH GUSTS TO
AROUND 20 KNOTS IN THE LATE EVENING AND OVERNIGHT. MOSTLY CLOUDY
IN THE EVENING THEN BECOMING PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
LSZ148-041600-
OAK POINT TO SAXON HARBOR WI-
500 AM CDT SUN OCT 4 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON
TODAY
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SUNNY. WAVES 1 TO 3 FEET.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE EVENING. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
MONDAY
NORTHWEST WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
SUNNY. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
EAST WIND 5 TO 10 KNOTS BECOMING SOUTH WITH GUSTS
TO AROUND 25 KNOTS IN THE LATE EVENING AND OVERNIGHT. MOSTLY
CLOUDY IN THE EVENING THEN BECOMING PARTLY CLOUDY. WAVES 1 FOOT
OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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