368
FZUS53 KDLH 172342
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
642 PM CDT THU SEP 17 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.
LSZ140-181000-
GRAND PORTAGE TO GRAND MARAIS MN-
642 PM CDT THU SEP 17 2026
REST OF TONIGHT
WEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST
10 TO 15 KNOTS TOWARD DAYBREAK. PARTLY CLOUDY UNTIL EARLY MORNING
THEN BECOMING MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
FRIDAY
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN THE
LATE MORNING AND AFTERNOON. MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
FRIDAY NIGHT
EAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
SATURDAY
NORTHEAST WIND 5 KNOTS BECOMING SOUTHEAST IN THE LATE
MORNING AND AFTERNOON. PARTLY SUNNY. WAVES 1 TO 2 FEET.
LSZ141-181000-
GRAND MARAIS TO TACONITE HARBOR MN-
642 PM CDT THU SEP 17 2026
REST OF TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS BECOMING
NORTHEAST TOWARD DAYBREAK. PARTLY CLOUDY UNTIL EARLY MORNING THEN
BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
FRIDAY
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS.
MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
FRIDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS IN THE EVENING. MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
SATURDAY
EAST WIND 5 KNOTS. PARTLY SUNNY. WAVES 1 TO 2 FEET.
LSZ142-181000-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
642 PM CDT THU SEP 17 2026
REST OF TONIGHT
NORTHWEST WIND 5 KNOTS BECOMING NORTHEAST
TOWARD DAYBREAK. MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY LATE
IN THE EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
FRIDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
FRIDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
SATURDAY
NORTHEAST WIND 5 KNOTS. PARTLY SUNNY. WAVES 1 TO
2 FEET.
LSZ143-181000-
SILVER BAY HARBOR TO TWO HARBORS MN-
642 PM CDT THU SEP 17 2026
REST OF TONIGHT
WEST WIND 5 KNOTS BECOMING NORTHEAST WITH
GUSTS TO AROUND 20 KNOTS IN THE LATE EVENING AND OVERNIGHT.
MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
FRIDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE AFTERNOON. CLOUDY. WAVES 1 TO
3 FEET.
FRIDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS. MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
SATURDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE MORNING AND EARLY AFTERNOON. PARTLY SUNNY. WAVES 1 TO
2 FEET.
LSZ144-181000-
TWO HARBORS TO DULUTH MN-
642 PM CDT THU SEP 17 2026
REST OF TONIGHT
WEST WIND 5 KNOTS BECOMING NORTHEAST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE LATE EVENING AND
OVERNIGHT. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
FRIDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS LATE IN THE AFTERNOON. SLIGHT CHANCE OF
RAIN SHOWERS IN THE AFTERNOON. WAVES 1 TO 3 FEET.
FRIDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS. MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
SATURDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
IN THE LATE MORNING AND AFTERNOON. PARTLY SUNNY. WAVES 1 TO
3 FEET.
LSZ145-181000-
DULUTH MN TO PORT WING WI-
642 PM CDT THU SEP 17 2026
REST OF TONIGHT
WEST WIND 5 KNOTS BECOMING NORTHEAST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE LATE EVENING AND
OVERNIGHT. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
FRIDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON.
WAVES 1 TO 3 FEET.
FRIDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS IN THE EVENING. MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
SATURDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
IN THE LATE MORNING AND AFTERNOON. MOSTLY CLOUDY. WAVES 1 TO
3 FEET.
LSZ146-181000-
PORT WING TO SAND ISLAND WI-
642 PM CDT THU SEP 17 2026
REST OF TONIGHT
NORTHWEST WIND 5 KNOTS BECOMING NORTHEAST WITH
GUSTS TO AROUND 20 KNOTS IN THE LATE EVENING AND OVERNIGHT.
MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
FRIDAY
EAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN THE
AFTERNOON. CLOUDY. WAVES 1 TO 2 FEET.
FRIDAY NIGHT
EAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
SATURDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE AFTERNOON. PARTLY SUNNY. WAVES 1 TO 2 FEET.
LSZ147-181000-
SAND ISLAND TO BAYFIELD WI-
642 PM CDT THU SEP 17 2026
REST OF TONIGHT
NORTH WIND 5 KNOTS BECOMING NORTHEAST WITH
GUSTS TO AROUND 20 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY. WAVES
1 TO 2 FEET.
FRIDAY
EAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN THE
AFTERNOON. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
FRIDAY NIGHT
EAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
SATURDAY
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES
1 TO 2 FEET.
LSZ150-181000-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
642 PM CDT THU SEP 17 2026
REST OF TONIGHT
WEST WIND 5 KNOTS BECOMING NORTH LATE IN THE
EVENING, THEN BECOMING NORTHEAST 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
FRIDAY
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS.
MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
FRIDAY NIGHT
EAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
SATURDAY
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES
1 TO 2 FEET.
LSZ121-181000-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
642 PM CDT THU SEP 17 2026
REST OF TONIGHT
EAST WIND 5 KNOTS BECOMING NORTHEAST IN THE
LATE EVENING AND OVERNIGHT. PARTLY CLOUDY EARLY IN THE EVENING
THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
FRIDAY
EAST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF RAIN SHOWERS
IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
EAST WIND 5 KNOTS. MOSTLY CLOUDY. WAVES 1 FOOT OR
LESS.
SATURDAY
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES
1 FOOT OR LESS.
LSZ148-181000-
OAK POINT TO SAXON HARBOR WI-
642 PM CDT THU SEP 17 2026
REST OF TONIGHT
EAST WIND 5 KNOTS BECOMING NORTHEAST IN THE
LATE EVENING AND OVERNIGHT. PARTLY CLOUDY EARLY IN THE EVENING
THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
FRIDAY
EAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES 1 TO
2 FEET.
FRIDAY NIGHT
EAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES
1 TO 2 FEET.
SATURDAY
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES
1 TO 2 FEET.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page