216
FZUS53 KDLH 210418
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
1117 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-
1117 PM CDT TUE OCT 20 2026
REST OF TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY
LATE IN THE EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 TO
2 FEET.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST LATE
IN THE AFTERNOON. PARTLY SUNNY IN THE MORNING THEN CLEARING.
WAVES 1 TO 2 FEET.
WEDNESDAY NIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 5 KNOTS BECOMING EAST IN THE LATE
MORNING AND AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
LSZ141-211000-
GRAND MARAIS TO TACONITE HARBOR MN-
1117 PM CDT TUE OCT 20 2026
REST OF TONIGHT
WEST WIND 5 KNOTS BECOMING SOUTHWEST TOWARD
DAYBREAK. PARTLY CLOUDY LATE IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 KNOTS. PARTLY SUNNY IN THE MORNING
THEN CLEARING. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
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.
LSZ142-211000-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
1117 PM CDT TUE OCT 20 2026
REST OF TONIGHT
SOUTHWEST WIND 5 KNOTS. PARTLY CLOUDY LATE IN
THE EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 KNOTS UNTIL LATE AFTERNOON BECOMING
VARIABLE 10 KNOTS OR LESS. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
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.
LSZ143-211000-
SILVER BAY HARBOR TO TWO HARBORS MN-
1117 PM CDT TUE OCT 20 2026
REST OF TONIGHT
WEST WIND 5 KNOTS BECOMING SOUTHWEST TOWARD
DAYBREAK. PARTLY CLOUDY LATE IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 KNOTS UNTIL LATE AFTERNOON BECOMING
VARIABLE 10 KNOTS OR LESS. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
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.
LSZ144-211000-
TWO HARBORS TO DULUTH MN-
1117 PM CDT TUE OCT 20 2026
REST OF TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY
LATE 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. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
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.
LSZ145-211000-
DULUTH MN TO PORT WING WI-
1117 PM CDT TUE OCT 20 2026
REST OF TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY
LATE 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. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
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 TO 2 FEET.
LSZ146-211000-
PORT WING TO SAND ISLAND WI-
1117 PM CDT TUE OCT 20 2026
REST OF TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY
LATE IN THE EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR
LESS.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS UNTIL LATE AFTERNOON
BECOMING VARIABLE 10 KNOTS OR LESS. MOSTLY SUNNY. WAVES 1 FOOT OR
LESS.
WEDNESDAY NIGHT
NORTHEAST 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-
1117 PM CDT TUE OCT 20 2026
REST OF TONIGHT
SOUTHWEST WIND 5 KNOTS. PARTLY CLOUDY LATE 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. MOSTLY CLEAR. 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-
1117 PM CDT TUE OCT 20 2026
REST OF TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY
LATE 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. MOSTLY CLEAR. 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-
1117 PM CDT TUE OCT 20 2026
REST OF TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR
LATE 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. PARTLY SUNNY IN THE MORNING THEN CLEARING.
WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
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 EAST 5 KNOTS
IN THE AFTERNOON. PATCHY FOG IN THE MORNING. WAVES 1 FOOT OR
LESS.
LSZ148-211000-
OAK POINT TO SAXON HARBOR WI-
1117 PM CDT TUE OCT 20 2026
REST OF TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR
LATE IN THE EVENING 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. 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.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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