504
FZUS53 KDLH 181413
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
913 AM CDT SUN OCT 18 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.
LSZ140-182200-
GRAND PORTAGE TO GRAND MARAIS MN-
913 AM CDT SUN OCT 18 2026
..GALE WARNING IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON
REST OF TODAY
SOUTHWEST WIND UP TO 30 KNOTS. GALES UP TO
40 KNOTS DECREASING TO 35 KNOTS IN THE AFTERNOON. MOSTLY SUNNY.
WAVES 7 TO 12 FEET. WAVES OCCASIONALLY TO 15 FEET.
TONIGHT
WEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND 30 KNOTS
EASING TO 5 TO 10 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY. WAVES 5 TO
8 FEET SUBSIDING TO 1 TO 2 FEET. WAVES OCCASIONALLY TO 11 FEET. A
SMALL CRAFT ADVISORY MAY BE NEEDED.
MONDAY
NORTH WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
SUNNY. WAVES 1 TO 2 FEET.
MONDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
LSZ141-182200-
GRAND MARAIS TO TACONITE HARBOR MN-
913 AM CDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TODAY
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO
35 KNOTS DECREASING TO 30 KNOTS IN THE AFTERNOON. SUNNY. WAVES
6 TO 9 FEET. WAVES OCCASIONALLY TO 12 FEET.
TONIGHT
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
EASING TO 5 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR. WAVES 4 TO 6 FEET
SUBSIDING TO 1 TO 2 FEET. WAVES OCCASIONALLY TO 8 FEET. A SMALL
CRAFT ADVISORY MAY BE NEEDED.
MONDAY
NORTH WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
SUNNY. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
LSZ142-182200-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
913 AM CDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
35 KNOTS DECREASING TO 25 KNOTS. SUNNY. WAVES 4 TO 6 FEET. WAVES
OCCASIONALLY TO 8 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST 5 KNOTS AFTER MIDNIGHT, THEN BECOMING
NORTHWEST EARLY IN THE MORNING. MOSTLY CLEAR. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 2 FEET IN THE LATE EVENING AND OVERNIGHT.
MONDAY
NORTH WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
SUNNY. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
LSZ143-182200-
SILVER BAY HARBOR TO TWO HARBORS MN-
913 AM CDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
35 KNOTS DECREASING TO 25 KNOTS. SUNNY. WAVES 4 TO 6 FEET. WAVES
OCCASIONALLY TO 8 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST 5 KNOTS AFTER MIDNIGHT, THEN BECOMING
NORTHWEST EARLY IN THE MORNING. MOSTLY CLEAR. WAVES 1 TO 3 FEET
SUBSIDING TO 1 TO 2 FEET IN THE LATE EVENING AND OVERNIGHT.
MONDAY
NORTH WIND 5 TO 10 KNOTS BECOMING NORTHEAST WITH GUSTS
TO AROUND 20 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
LSZ144-182200-
TWO HARBORS TO DULUTH MN-
913 AM CDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TODAY
SOUTHWEST 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. WAVES OCCASIONALLY TO 7 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTH EARLY IN THE MORNING. MOSTLY CLEAR. WAVES
1 TO 2 FEET.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS RISING TO 10 TO 15 KNOTS
WITH GUSTS TO AROUND 20 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO
2 FEET.
MONDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
LSZ145-182200-
DULUTH MN TO PORT WING WI-
913 AM CDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
35 KNOTS DECREASING TO 25 KNOTS. MOSTLY SUNNY. WAVES 3 TO 5 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS EASING TO 5 KNOTS AFTER MIDNIGHT, THEN BECOMING WEST
EARLY IN THE MORNING. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
MONDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
MONDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
LSZ146-182200-
PORT WING TO SAND ISLAND WI-
913 AM CDT SUN OCT 18 2026
..GALE WARNING IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON
REST OF TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
35 KNOTS DECREASING TO 25 KNOTS. SUNNY. WAVES 4 TO 6 FEET
SUBSIDING TO 2 TO 4 FEET LATE. WAVES OCCASIONALLY TO 8 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST 5 KNOTS EARLY IN THE MORNING. MOSTLY
CLEAR. WAVES 1 TO 3 FEET.
MONDAY
NORTHEAST WIND 5 KNOTS RISING TO 5 TO 10 KNOTS IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
EAST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
LSZ147-182200-
SAND ISLAND TO BAYFIELD WI-
913 AM CDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
35 KNOTS DECREASING TO 25 KNOTS. SUNNY. WAVES 4 TO 6 FEET. WAVES
OCCASIONALLY TO 8 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST 5 KNOTS EARLY IN THE MORNING. MOSTLY
CLEAR. WAVES 1 TO 3 FEET.
MONDAY
NORTH WIND 5 KNOTS BECOMING NORTHEAST IN THE AFTERNOON.
SUNNY. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
EAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
LSZ150-182200-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
913 AM CDT SUN OCT 18 2026
..GALE WARNING IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON
REST OF TODAY
SOUTHWEST WIND 20 TO 25 KNOTS. GUSTS UP TO
35 KNOTS DECREASING TO 30 KNOTS LATE. SUNNY. WAVES 5 TO 8 FEET
SUBSIDING TO 4 TO 6 FEET LATE. WAVES OCCASIONALLY TO 10 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST 5 KNOTS EARLY IN THE MORNING. MOSTLY
CLEAR. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET IN THE LATE
EVENING AND OVERNIGHT.
MONDAY
NORTH WIND 5 KNOTS BECOMING NORTHEAST IN THE AFTERNOON.
SUNNY. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
EAST WIND 5 TO 10 KNOTS EASING TO 5 KNOTS EARLY
IN THE MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
LSZ121-182200-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
913 AM CDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TODAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
30 KNOTS DECREASING TO 25 KNOTS LATE. SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST 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 NORTHEAST IN THE LATE
MORNING AND AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 5 KNOTS UNTIL EARLY MORNING
BECOMING VARIABLE 10 KNOTS OR LESS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
LSZ148-182200-
OAK POINT TO SAXON HARBOR WI-
913 AM CDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
35 KNOTS DECREASING TO 25 KNOTS. SUNNY. WAVES 1 TO 3 FEET
SUBSIDING TO 1 TO 2 FEET LATE.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE EVENING. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
MONDAY
SOUTHWEST WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
MORNING AND AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTHEAST
EARLY IN THE MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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