331
FZUS53 KDLH 202307
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
607 PM CDT TUE OCT 20 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.
LSZ140-211000-
GRAND PORTAGE TO GRAND MARAIS MN-
607 PM CDT TUE OCT 20 2026
REST OF TONIGHT
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST IN
THE LATE EVENING AND OVERNIGHT. MOSTLY CLEAR IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
WEDNESDAY
SOUTHWEST WIND 10 TO 15 KNOTS EASING TO 5 KNOTS
EARLY IN THE AFTERNOON, THEN BECOMING SOUTHEAST LATE IN THE
AFTERNOON. PARTLY SUNNY IN THE MORNING THEN CLEARING. WAVES 1 TO
2 FEET.
WEDNESDAY NIGHT
NORTHEAST WIND 5 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 5 KNOTS BECOMING EAST IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
LSZ141-211000-
GRAND MARAIS TO TACONITE HARBOR MN-
607 PM CDT TUE OCT 20 2026
REST OF TONIGHT
SOUTHEAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS, THEN BECOMING SOUTHWEST
5 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH LATE IN THE
AFTERNOON. PARTLY SUNNY IN THE MORNING THEN CLEARING. WAVES
1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHEAST WIND 5 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
THURSDAY
EAST WIND 5 KNOTS. MOSTLY SUNNY. WAVES 1 FOOT OR
LESS.
LSZ142-211000-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
607 PM CDT TUE OCT 20 2026
REST OF TONIGHT
SOUTHEAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS, THEN BECOMING SOUTHWEST 5 TO
10 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTH LATE IN
THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHEAST WIND 5 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 FOOT OR
LESS.
LSZ143-211000-
SILVER BAY HARBOR TO TWO HARBORS MN-
607 PM CDT TUE OCT 20 2026
REST OF TONIGHT
EAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS, THEN BECOMING SOUTHWEST
5 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTH LATE IN
THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
LSZ144-211000-
TWO HARBORS TO DULUTH MN-
607 PM CDT TUE OCT 20 2026
REST OF TONIGHT
EAST WIND 5 KNOTS BECOMING SOUTHWEST AFTER
MIDNIGHT. PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTHEAST LATE
IN THE AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLEAR.
WAVES 1 FOOT OR LESS.
THURSDAY
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
LSZ145-211000-
DULUTH MN TO PORT WING WI-
607 PM CDT TUE OCT 20 2026
REST OF TONIGHT
EAST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST IN
THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING EAST LATE IN
THE AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
LSZ146-211000-
PORT WING TO SAND ISLAND WI-
607 PM CDT TUE OCT 20 2026
REST OF TONIGHT
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST IN
THE LATE EVENING AND OVERNIGHT. MOSTLY CLEAR IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST LATE
IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
EAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT
OR LESS.
THURSDAY
EAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS LATE IN
THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
LSZ147-211000-
SAND ISLAND TO BAYFIELD WI-
607 PM CDT TUE OCT 20 2026
REST OF TONIGHT
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST IN
THE LATE EVENING AND OVERNIGHT. MOSTLY CLEAR IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTH LATE IN
THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
EAST WIND 5 KNOTS. PARTLY CLOUDY. WAVES 1 FOOT
OR LESS.
THURSDAY
EAST WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES 1 FOOT
OR LESS.
LSZ150-211000-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
607 PM CDT TUE OCT 20 2026
REST OF TONIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING
SOUTHWEST IN THE LATE EVENING AND OVERNIGHT. MOSTLY CLEAR IN THE
EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTH LATE IN
THE AFTERNOON. PARTLY SUNNY IN THE MORNING THEN CLEARING. WAVES
1 FOOT OR LESS.
WEDNESDAY NIGHT
EAST WIND 5 KNOTS. PARTLY CLOUDY. WAVES 1 FOOT
OR LESS.
THURSDAY
EAST WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES 1 FOOT
OR LESS.
LSZ121-211000-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
607 PM CDT TUE OCT 20 2026
REST OF TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR
UNTIL EARLY MORNING THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR
LESS.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST LATE
IN THE AFTERNOON. PARTLY SUNNY IN THE MORNING THEN CLEARING.
WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHEAST WIND 5 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING EAST 5 KNOTS IN THE
AFTERNOON. PATCHY FOG IN THE MORNING. WAVES 1 FOOT OR LESS.
LSZ148-211000-
OAK POINT TO SAXON HARBOR WI-
607 PM CDT TUE OCT 20 2026
REST OF TONIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING
SOUTHWEST IN THE LATE EVENING AND OVERNIGHT. MOSTLY CLEAR UNTIL
EARLY MORNING THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING WEST EARLY IN
THE AFTERNOON, THEN BECOMING NORTHEAST LATE IN THE AFTERNOON.
PARTLY SUNNY IN THE MORNING THEN CLEARING. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
EAST WIND 5 KNOTS. PARTLY CLOUDY. WAVES 1 FOOT
OR LESS.
THURSDAY
SOUTHEAST WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTHEAST 5 KNOTS IN THE
AFTERNOON. PATCHY FOG IN THE MORNING. WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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