903
FZUS53 KDLH 031132
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
632 AM CDT MON AUG 3 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.
LSZ140-031600-
GRAND PORTAGE TO GRAND MARAIS MN-
632 AM CDT MON AUG 3 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY MORNING...
TODAY
SOUTHEAST WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES 1 FOOT
OR LESS.
TONIGHT
EAST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST 15 TO
20 KNOTS WITH GUSTS TO AROUND 30 KNOTS AFTER MIDNIGHT. RAIN
SHOWERS LIKELY AFTER MIDNIGHT. WAVES 1 TO 2 FEET BUILDING TO 2 TO
4 FEET AFTER MIDNIGHT.
TUESDAY
WEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS LATE IN THE MORNING, THEN INCREASING TO
25 KNOTS IN THE AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING. WAVES 2 TO 4 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
TUESDAY NIGHT
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
EARLY IN THE EVENING. PARTLY CLOUDY. WAVES 2 TO 4 FEET SUBSIDING
TO 1 TO 3 FEET IN THE LATE EVENING AND OVERNIGHT. A SMALL CRAFT
ADVISORY MAY BE NEEDED.
LSZ141-031600-
GRAND MARAIS TO TACONITE HARBOR MN-
632 AM CDT MON AUG 3 2026
TODAY
EAST WIND 5 KNOTS. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS BECOMING EAST AFTER MIDNIGHT,
THEN BECOMING SOUTHWEST 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS EARLY IN THE MORNING. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
LSZ142-031600-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
632 AM CDT MON AUG 3 2026
TODAY
NORTHEAST WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING EAST 5 KNOTS IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS BECOMING SOUTHEAST WITH GUSTS
TO AROUND 20 KNOTS AFTER MIDNIGHT, THEN BECOMING SOUTHWEST WITH
GUSTS TO AROUND 20 KNOTS EARLY IN THE MORNING. RAIN SHOWERS
LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
TUESDAY
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS.
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
MORNING. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
WEST WIND 5 KNOTS. PARTLY CLOUDY. WAVES 1 FOOT
OR LESS.
LSZ143-031600-
SILVER BAY HARBOR TO TWO HARBORS MN-
632 AM CDT MON AUG 3 2026
TODAY
NORTHEAST WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTH 10 TO
15 KNOTS WITH GUSTS TO AROUND 25 KNOTS AFTER MIDNIGHT, THEN
BECOMING SOUTHWEST WITH GUSTS TO AROUND 25 KNOTS EARLY IN THE
MORNING. RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS
AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS LATE IN
THE AFTERNOON. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
WEST WIND 5 KNOTS. PARTLY CLOUDY. WAVES 1 FOOT
OR LESS.
LSZ144-031600-
TWO HARBORS TO DULUTH MN-
632 AM CDT MON AUG 3 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
TUESDAY MORNING...
TODAY
EAST WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES 1 FOOT OR
LESS.
TONIGHT
EAST WIND 5 TO 10 KNOTS BECOMING SOUTHEAST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS LATE IN THE EVENING, THEN
BECOMING SOUTH 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS AFTER
MIDNIGHT BECOMING WEST WITH GUSTS TO AROUND 25 KNOTS EARLY IN THE
MORNING. SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS AFTER
MIDNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS EARLY
IN THE MORNING THEN 20 KNOTS EARLY IN THE AFTERNOON. CHANCE OF
RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING.
WAVES 1 TO 2 FEET.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
LSZ145-031600-
DULUTH MN TO PORT WING WI-
632 AM CDT MON AUG 3 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
TUESDAY MORNING...
TODAY
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY FOG IN THE MORNING.
WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTH 15 TO
20 KNOTS WITH GUSTS TO AROUND 25 KNOTS IN THE LATE EVENING AND
EARLY MORNING, THEN BECOMING SOUTHWEST WITH GUSTS TO AROUND
25 KNOTS EARLY IN THE MORNING. SHOWERS LIKELY AND SLIGHT CHANCE
OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS
EASING TO 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE
AFTERNOON. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
IN THE MORNING. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
LSZ146-031600-
PORT WING TO SAND ISLAND WI-
632 AM CDT MON AUG 3 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
TUESDAY MORNING...
TODAY
NORTHEAST WIND 5 KNOTS. PATCHY FOG IN THE MORNING. WAVES
1 FOOT OR LESS.
TONIGHT
SOUTHEAST WIND 5 KNOTS BECOMING SOUTH 10 TO 15 KNOTS
WITH GUSTS TO AROUND 25 KNOTS IN THE LATE EVENING AND EARLY
MORNING, THEN BECOMING SOUTHWEST WITH GUSTS TO AROUND 25 KNOTS
EARLY IN THE MORNING. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS.
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
MORNING. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
LSZ147-031600-
SAND ISLAND TO BAYFIELD WI-
632 AM CDT MON AUG 3 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
TUESDAY MORNING...
TODAY
SOUTHEAST WIND 5 KNOTS. MOSTLY SUNNY. WAVES 1 FOOT OR
LESS.
TONIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST 10 TO
15 KNOTS WITH GUSTS TO AROUND 25 KNOTS IN THE LATE EVENING AND
OVERNIGHT. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
TUESDAY
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS.
CHANCE OF SHOWERS IN THE MORNING. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
LSZ150-031600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
632 AM CDT MON AUG 3 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
TUESDAY MORNING...
TODAY
SOUTHEAST WIND 5 KNOTS BECOMING SOUTH LATE IN THE
MORNING, THEN BECOMING EAST IN THE AFTERNOON. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTH 10 TO
15 KNOTS WITH GUSTS TO AROUND 25 KNOTS IN THE LATE EVENING AND
OVERNIGHT. CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. CHANCE OF RAIN SHOWERS IN THE MORNING. WAVES 1 TO
2 FEET.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
LSZ121-031600-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
632 AM CDT MON AUG 3 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
TUESDAY MORNING...
TODAY
NORTHEAST WIND 5 KNOTS BECOMING SOUTH IN THE LATE
MORNING AND AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTH WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
TUESDAY
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS EARLY
IN THE MORNING. CHANCE OF SHOWERS IN THE MORNING. WAVES 1 FOOT OR
LESS.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST EARLY
IN THE MORNING. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
LSZ148-031600-
OAK POINT TO SAXON HARBOR WI-
632 AM CDT MON AUG 3 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
TUESDAY MORNING...
TODAY
EAST WIND 5 KNOTS BECOMING SOUTH LATE IN THE MORNING,
THEN BECOMING SOUTHEAST IN THE AFTERNOON. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
SOUTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTHWEST WITH GUSTS TO AROUND 25 KNOTS AFTER
MIDNIGHT. CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS EARLY
IN THE MORNING. CHANCE OF SHOWERS IN THE MORNING. WAVES 1 FOOT OR
LESS.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST EARLY
IN THE MORNING. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page