122
FZUS53 KDLH 060400
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
1100 PM CDT WED AUG 5 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.
LSZ140-061000-
GRAND PORTAGE TO GRAND MARAIS MN-
1100 PM CDT WED AUG 5 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THURSDAY THROUGH
FRIDAY AFTERNOON...
REST OF TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS TOWARD DAYBREAK. PARTLY CLOUDY THEN BECOMING MOSTLY
CLOUDY AFTER MIDNIGHT THEN BECOMING PARTLY CLOUDY. WAVES 1 TO
2 FEET.
THURSDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
INCREASING TO 30 KNOTS IN THE LATE MORNING AND AFTERNOON. MOSTLY
SUNNY. WAVES 1 TO 3 FEET BUILDING TO 3 TO 5 FEET IN THE LATE
MORNING AND AFTERNOON.
THURSDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS INCREASING TO 30 KNOTS AFTER MIDNIGHT, THEN DECREASING
TO 25 KNOTS EARLY IN THE MORNING. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. WAVES 3 TO 5 FEET. WAVES
OCCASIONALLY TO 7 FEET.
FRIDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS IN THE AFTERNOON. SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. CHANCE OF RAIN SHOWERS THROUGH THE
DAY. WAVES 3 TO 5 FEET.
LSZ141-061000-
GRAND MARAIS TO TACONITE HARBOR MN-
1100 PM CDT WED AUG 5 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THURSDAY THROUGH
THURSDAY EVENING...
REST OF TONIGHT
NORTHEAST WIND 5 KNOTS BECOMING EAST AFTER
MIDNIGHT, THEN BECOMING SOUTH TOWARD DAYBREAK. MOSTLY CLOUDY LATE
IN THE EVENING THEN BECOMING PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
30 KNOTS. MOSTLY SUNNY. WAVES 1 TO 3 FEET.
THURSDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO
25 KNOTS DECREASING TO 20 KNOTS IN THE LATE EVENING AND
OVERNIGHT. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
FRIDAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING WEST LATE IN THE
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING. CHANCE
OF RAIN SHOWERS THROUGH THE DAY. WAVES 1 TO 2 FEET.
LSZ142-061000-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
1100 PM CDT WED AUG 5 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THURSDAY THROUGH
THURSDAY EVENING...
REST OF TONIGHT
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST
AFTER MIDNIGHT. MOSTLY CLOUDY LATE IN THE EVENING THEN BECOMING
PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
LATE IN THE MORNING INCREASING TO 30 KNOTS, THEN DECREASING TO
25 KNOTS LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO
25 KNOTS DECREASING TO 20 KNOTS IN THE LATE EVENING AND
OVERNIGHT. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. WAVES 1 TO 2 FEET.
FRIDAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING WEST LATE IN THE
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING. CHANCE
OF RAIN SHOWERS THROUGH THE DAY. WAVES 1 TO 2 FEET.
LSZ143-061000-
SILVER BAY HARBOR TO TWO HARBORS MN-
1100 PM CDT WED AUG 5 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THURSDAY THROUGH
THURSDAY EVENING...
REST OF TONIGHT
SOUTH WIND 5 KNOTS BECOMING SOUTHWEST AFTER
MIDNIGHT. MOSTLY CLOUDY LATE IN THE EVENING THEN BECOMING PARTLY
CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
IN THE LATE MORNING AND AFTERNOON. MOSTLY SUNNY. WAVES 1 TO
2 FEET.
THURSDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS DECREASING TO 20 KNOTS IN THE LATE EVENING AND
OVERNIGHT. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. WAVES 1 TO 2 FEET.
FRIDAY
SOUTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST LATE IN THE AFTERNOON. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 TO 2 FEET.
LSZ144-061000-
TWO HARBORS TO DULUTH MN-
1100 PM CDT WED AUG 5 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THURSDAY THROUGH
THURSDAY EVENING...
REST OF TONIGHT
SOUTHWEST WIND 5 KNOTS. MOSTLY CLOUDY LATE IN
THE EVENING THEN CLEARING. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
SUNNY. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS DECREASING TO 20 KNOTS IN THE LATE EVENING AND
OVERNIGHT. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. WAVES 1 TO 3 FEET.
FRIDAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST LATE IN
THE AFTERNOON. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. WAVES 1 TO 2 FEET.
LSZ145-061000-
DULUTH MN TO PORT WING WI-
1100 PM CDT WED AUG 5 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THURSDAY THROUGH
THURSDAY EVENING...
REST OF TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY
LATE IN THE EVENING THEN CLEARING. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
SUNNY. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS IN THE LATE EVENING AND EARLY
MORNING, THEN DECREASING TO 20 KNOTS EARLY IN THE MORNING. MOSTLY
CLEAR. WAVES 1 TO 2 FEET.
FRIDAY
SOUTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST IN THE AFTERNOON. CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE DAY. WAVES 1 TO
2 FEET.
LSZ146-061000-
PORT WING TO SAND ISLAND WI-
1100 PM CDT WED AUG 5 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THURSDAY THROUGH
THURSDAY EVENING...
REST OF TONIGHT
SOUTH WIND 5 TO 10 KNOTS. MOSTLY CLOUDY LATE
IN THE EVENING THEN CLEARING. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
LATE IN THE MORNING INCREASING TO 25 KNOTS, THEN DECREASING TO
20 KNOTS LATE IN THE AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
SOUTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTHWEST 5 TO 10 KNOTS WITH GUSTS TO AROUND
25 KNOTS IN THE LATE EVENING AND OVERNIGHT. MOSTLY CLEAR. WAVES
1 TO 2 FEET.
FRIDAY
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
UNTIL LATE AFTERNOON. CHANCE OF SHOWERS THROUGH THE DAY. SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FEET.
LSZ147-061000-
SAND ISLAND TO BAYFIELD WI-
1100 PM CDT WED AUG 5 2026
REST OF TONIGHT
SOUTH WIND 5 TO 10 KNOTS. MOSTLY CLOUDY LATE
IN THE EVENING THEN CLEARING. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
LATE IN THE MORNING INCREASING TO 25 KNOTS, THEN DECREASING TO
20 KNOTS LATE IN THE AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTH WIND 10 TO 15 KNOTS EASING TO 10 KNOTS
LATE IN THE EVENING, THEN RISING TO 10 TO 15 KNOTS AFTER MIDNIGHT
BECOMING SOUTHWEST EARLY IN THE MORNING. GUSTS UP TO 20 KNOTS.
MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
FRIDAY
SOUTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST IN THE AFTERNOON. CHANCE OF SHOWERS
THROUGH THE DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
WAVES 1 FOOT OR LESS.
LSZ150-061000-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
1100 PM CDT WED AUG 5 2026
REST OF TONIGHT
SOUTH WIND 5 TO 10 KNOTS. PARTLY CLOUDY THEN
BECOMING MOSTLY CLOUDY AFTER MIDNIGHT THEN BECOMING MOSTLY CLEAR.
WAVES 1 FOOT OR LESS.
THURSDAY
SOUTH WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE MORNING AND AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
SOUTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
FRIDAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST 5 TO 10 KNOTS IN THE AFTERNOON. CHANCE OF
SHOWERS THROUGH THE DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 TO 2 FEET.
LSZ121-061000-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
1100 PM CDT WED AUG 5 2026
REST OF TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY
LATE IN THE EVENING THEN CLEARING. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 25 KNOTS.
SUNNY. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO
AROUND 20 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
FRIDAY
SOUTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST WITH GUSTS TO AROUND 20 KNOTS IN THE
AFTERNOON. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
MORNING, THEN SHOWERS AND CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
LSZ148-061000-
OAK POINT TO SAXON HARBOR WI-
1100 PM CDT WED AUG 5 2026
REST OF TONIGHT
SOUTH WIND 5 TO 10 KNOTS. MOSTLY CLOUDY LATE
IN THE EVENING THEN CLEARING. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 10 TO 15 KNOTS BECOMING SOUTH LATE IN
THE AFTERNOON. GUSTS UP TO 25 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
THURSDAY NIGHT
SOUTH WIND 10 TO 15 KNOTS BECOMING SOUTHWEST
EARLY IN THE MORNING. GUSTS UP TO 20 KNOTS. MOSTLY CLEAR. WAVES
1 TO 2 FEET.
FRIDAY
SOUTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS
IN THE MORNING, THEN SHOWERS AND CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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