104
FZUS53 KDLH 171954
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
254 PM CDT WED SEP 17 2025
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.
LSZ140-141-180415-
GRAND PORTAGE TO GRAND MARAIS MN-
GRAND MARAIS TO TACONITE HARBOR MN-
254 PM CDT WED SEP 17 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH
LATE FRIDAY NIGHT...
TONIGHT
NORTHWEST WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
EVENING AND OVERNIGHT. PARTLY CLOUDY EARLY IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
THURSDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES
1 TO 3 FEET.
THURSDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS. MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
FRIDAY
EAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS.
SLIGHT CHANCE OF RAIN SHOWERS IN THE MORNING. WAVES 4 TO 6 FEET.
WAVES OCCASIONALLY TO 7 FEET.
LSZ142-180415-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
254 PM CDT WED SEP 17 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
FRIDAY NIGHT...
TONIGHT
NORTH WIND 5 KNOTS BECOMING NORTHEAST WITH GUSTS TO
AROUND 20 KNOTS IN THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY
EARLY IN THE EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 TO
2 FEET.
THURSDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON,
THEN DECREASING TO 20 KNOTS LATE IN THE AFTERNOON. SLIGHT CHANCE
OF RAIN SHOWERS IN THE MORNING, THEN CHANCE OF RAIN SHOWERS IN
THE AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET IN THE
LATE MORNING AND AFTERNOON.
THURSDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS. SLIGHT CHANCE OF RAIN SHOWERS. WAVES 3 TO
5 FEET.
FRIDAY
EAST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
INCREASING TO 30 KNOTS EARLY IN THE AFTERNOON, THEN DECREASING TO
25 KNOTS LATE IN THE AFTERNOON. CHANCE OF RAIN SHOWERS. WAVES
4 TO 6 FEET. WAVES OCCASIONALLY TO 8 FEET.
LSZ143-180415-
SILVER BAY HARBOR TO TWO HARBORS MN-
254 PM CDT WED SEP 17 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
FRIDAY NIGHT...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. PARTLY CLOUDY EARLY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. WAVES 1 TO 2 FEET.
THURSDAY
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. CHANCE OF RAIN SHOWERS. WAVES 3 TO 5 FEET.
THURSDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 25 KNOTS. SLIGHT CHANCE OF RAIN SHOWERS THROUGH THE NIGHT.
SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 3 TO 5 FEET.
FRIDAY
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING. CHANCE
OF RAIN SHOWERS THROUGH THE DAY. WAVES 4 TO 6 FEET. WAVES
OCCASIONALLY TO 8 FEET.
LSZ144-145-180415-
TWO HARBORS TO DULUTH MN-DULUTH MN TO PORT WING WI-
254 PM CDT WED SEP 17 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
FRIDAY NIGHT...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SLIGHT CHANCE OF RAIN SHOWERS LATE IN THE NIGHT. WAVES
1 TO 3 FEET.
THURSDAY
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. CHANCE OF RAIN SHOWERS. WAVES 3 TO 5 FEET. WAVES
OCCASIONALLY TO 7 FEET.
THURSDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS. SLIGHT CHANCE OF RAIN SHOWERS IN THE EVENING,
THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
AFTER MIDNIGHT. WAVES 3 TO 5 FEET.
FRIDAY
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS IN
THE LATE MORNING AND AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS IN
THE MORNING. CHANCE OF RAIN SHOWERS THROUGH THE DAY. WAVES 4 TO
6 FEET. WAVES OCCASIONALLY TO 8 FEET.
LSZ146-180415-
PORT WING TO SAND ISLAND WI-
254 PM CDT WED SEP 17 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
FRIDAY NIGHT...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SLIGHT CHANCE OF RAIN SHOWERS LATE IN THE NIGHT. WAVES
1 TO 2 FEET.
THURSDAY
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. CHANCE OF RAIN SHOWERS. WAVES 3 TO 5 FEET.
THURSDAY NIGHT
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS AFTER MIDNIGHT. SLIGHT CHANCE OF RAIN
SHOWERS THROUGH THE NIGHT. SLIGHT CHANCE OF THUNDERSTORMS AFTER
MIDNIGHT. WAVES 3 TO 5 FEET.
FRIDAY
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE AFTERNOON. SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. CHANCE OF RAIN SHOWERS THROUGH THE
DAY. WAVES 3 TO 5 FEET. WAVES OCCASIONALLY TO 7 FEET.
LSZ147-180415-
SAND ISLAND TO BAYFIELD WI-
254 PM CDT WED SEP 17 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
FRIDAY NIGHT...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS. PARTLY CLOUDY EARLY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. WAVES 1 TO 2 FEET.
THURSDAY
EAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. CHANCE OF RAIN SHOWERS. WAVES 3 TO 5 FEET.
THURSDAY NIGHT
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS AFTER MIDNIGHT. SLIGHT CHANCE OF RAIN
SHOWERS THROUGH THE NIGHT. SLIGHT CHANCE OF THUNDERSTORMS AFTER
MIDNIGHT. WAVES 3 TO 5 FEET.
FRIDAY
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE AFTERNOON. SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. CHANCE OF RAIN SHOWERS THROUGH THE
DAY. WAVES 3 TO 5 FEET. WAVES OCCASIONALLY TO 7 FEET.
LSZ121-180415-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
254 PM CDT WED SEP 17 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY MORNING...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SLIGHT CHANCE OF RAIN SHOWERS LATE IN THE NIGHT. WAVES
1 TO 2 FEET.
THURSDAY
NORTHEAST WIND 15 TO 20 KNOTS. CHANCE OF RAIN
SHOWERS. WAVES 1 TO 3 FEET.
THURSDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS UNTIL EARLY MORNING. SLIGHT CHANCE OF RAIN SHOWERS
THROUGH THE NIGHT. SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.
WAVES 1 TO 3 FEET.
FRIDAY
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS.
SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING. CHANCE OF RAIN
SHOWERS THROUGH THE DAY. WAVES 1 TO 2 FEET.
LSZ148-180415-
OAK POINT TO SAXON HARBOR WI-
254 PM CDT WED SEP 17 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY MORNING...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS. PARTLY CLOUDY EARLY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. WAVES 1 TO 3 FEET.
THURSDAY
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. CHANCE OF RAIN SHOWERS. WAVES 3 TO 5 FEET. WAVES
OCCASIONALLY TO 7 FEET.
THURSDAY NIGHT
EAST WIND 15 TO 20 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS THROUGH THE NIGHT. SLIGHT CHANCE OF THUNDERSTORMS AFTER
MIDNIGHT. WAVES 3 TO 5 FEET. WAVES OCCASIONALLY TO 7 FEET.
FRIDAY
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN THE
LATE MORNING AND AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS IN THE
MORNING. CHANCE OF RAIN SHOWERS THROUGH THE DAY. WAVES 2 TO
4 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
LSZ150-180415-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
254 PM CDT WED SEP 17 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
FRIDAY NIGHT...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS. PARTLY CLOUDY EARLY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. WAVES 1 TO 2 FEET BUILDING TO 1 TO 3 FEET LATE IN THE
NIGHT.
THURSDAY
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. SLIGHT CHANCE OF RAIN SHOWERS IN THE MORNING, THEN
CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES 4 TO 6 FEET. WAVES
OCCASIONALLY TO 7 FEET.
THURSDAY NIGHT
EAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS EASING TO 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS
AFTER MIDNIGHT. SLIGHT CHANCE OF RAIN SHOWERS. WAVES 4 TO 6 FEET.
WAVES OCCASIONALLY TO 8 FEET.
FRIDAY
EAST WIND 15 TO 20 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE LATE MORNING AND AFTERNOON. CHANCE
OF RAIN SHOWERS. WAVES 4 TO 6 FEET. WAVES OCCASIONALLY TO 8 FEET.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
BRITT
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page