063
FZUS53 KDLH 210537
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
1237 AM CDT WED OCT 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.
LSZ140-211600-
GRAND PORTAGE TO GRAND MARAIS MN-
1237 AM CDT WED OCT 21 2026
TODAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST LATE IN
THE AFTERNOON. PARTLY SUNNY IN THE MORNING THEN CLEARING. WAVES
1 TO 2 FEET.
TONIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
THURSDAY
NORTHEAST WIND 5 KNOTS BECOMING EAST IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
EAST WIND 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES
1 TO 2 FEET.
LSZ141-211600-
GRAND MARAIS TO TACONITE HARBOR MN-
1237 AM CDT WED OCT 21 2026
TODAY
SOUTHWEST WIND 5 KNOTS. MOSTLY CLOUDY EARLY IN THE
MORNING THEN CLEARING. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 5 KNOTS BECOMING EAST IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 FOOT OR LESS.
LSZ142-211600-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
1237 AM CDT WED OCT 21 2026
TODAY
SOUTHWEST WIND 5 KNOTS UNTIL LATE AFTERNOON BECOMING
VARIABLE 10 KNOTS OR LESS. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
THURSDAY
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
THURSDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 FOOT OR LESS.
LSZ143-211600-
SILVER BAY HARBOR TO TWO HARBORS MN-
1237 AM CDT WED OCT 21 2026
TODAY
SOUTHWEST WIND 5 KNOTS UNTIL LATE AFTERNOON BECOMING
VARIABLE 10 KNOTS OR LESS. PARTLY SUNNY EARLY IN THE MORNING THEN
CLEARING. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
THURSDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
LSZ144-211600-
TWO HARBORS TO DULUTH MN-
1237 AM CDT WED OCT 21 2026
TODAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTHEAST LATE IN
THE AFTERNOON. PARTLY SUNNY EARLY IN THE MORNING THEN CLEARING.
WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
THURSDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
LSZ145-211600-
DULUTH MN TO PORT WING WI-
1237 AM CDT WED OCT 21 2026
TODAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING EAST LATE IN THE
AFTERNOON. PARTLY SUNNY EARLY IN THE MORNING THEN CLEARING. WAVES
1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
THURSDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
LSZ146-211600-
PORT WING TO SAND ISLAND WI-
1237 AM CDT WED OCT 21 2026
TODAY
SOUTHWEST WIND 5 TO 10 KNOTS UNTIL LATE AFTERNOON
BECOMING VARIABLE 10 KNOTS OR LESS. MOSTLY CLOUDY EARLY IN THE
MORNING THEN CLEARING. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLEAR. 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 FOOT OR LESS.
THURSDAY NIGHT
EAST WIND 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
LSZ147-211600-
SAND ISLAND TO BAYFIELD WI-
1237 AM CDT WED OCT 21 2026
TODAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTH LATE IN THE
AFTERNOON. MOSTLY CLOUDY EARLY IN THE MORNING THEN CLEARING.
WAVES 1 FOOT OR LESS.
TONIGHT
EAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
THURSDAY
EAST WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES 1 FOOT
OR LESS.
THURSDAY NIGHT
NORTHEAST WIND 5 KNOTS BECOMING SOUTHEAST EARLY
IN THE MORNING. PATCHY FOG AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
LSZ150-211600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
1237 AM CDT WED OCT 21 2026
TODAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTH LATE IN THE
AFTERNOON. MOSTLY CLOUDY EARLY IN THE MORNING THEN CLEARING.
WAVES 1 FOOT OR LESS.
TONIGHT
EAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
THURSDAY
EAST WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES 1 FOOT
OR LESS.
THURSDAY NIGHT
EAST WIND 5 TO 10 KNOTS BECOMING SOUTHEAST
AFTER MIDNIGHT. PATCHY FOG AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
LSZ121-211600-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
1237 AM CDT WED OCT 21 2026
TODAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST LATE IN
THE AFTERNOON. PARTLY SUNNY IN THE MORNING THEN CLEARING. WAVES
1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS UNTIL EARLY MORNING BECOMING
VARIABLE 10 KNOTS OR LESS. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
THURSDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING NORTHEAST
5 KNOTS IN THE AFTERNOON. PATCHY FOG IN THE MORNING. WAVES 1 FOOT
OR LESS.
THURSDAY NIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS, THEN BECOMING SOUTH 5 KNOTS
AFTER MIDNIGHT. PATCHY FOG. WAVES 1 FOOT OR LESS.
LSZ148-211600-
OAK POINT TO SAXON HARBOR WI-
1237 AM CDT WED OCT 21 2026
TODAY
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.
TONIGHT
EAST WIND 5 KNOTS. PATCHY FOG AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
THURSDAY
EAST WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTHEAST 5 KNOTS IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
NORTHEAST WIND 5 KNOTS BECOMING SOUTH AFTER
MIDNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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