745
FZUS53 KDLH 251338
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
838 AM CDT TUE AUG 25 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.
LSZ140-252200-
GRAND PORTAGE TO GRAND MARAIS MN-
838 AM CDT TUE AUG 25 2026
REST OF TODAY
SOUTHEAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN
SHOWERS EARLY IN THE MORNING, THEN RAIN SHOWERS LIKELY AND CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING WEST AFTER
MIDNIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING,
THEN SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS.
WEDNESDAY
NORTHWEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS IN THE MORNING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHWEST WIND 10 TO 15 KNOTS. SLIGHT CHANCE
OF RAIN SHOWERS IN THE EVENING. WAVES 1 FOOT OR LESS.
LSZ141-252200-
GRAND MARAIS TO TACONITE HARBOR MN-
838 AM CDT TUE AUG 25 2026
REST OF TODAY
EAST WIND 5 KNOTS. CHANCE OF RAIN SHOWERS
THROUGH THE DAY. SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS BECOMING NORTH LATE IN THE
EVENING, THEN BECOMING WEST AFTER MIDNIGHT. RAIN SHOWERS LIKELY
AND CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF
RAIN SHOWERS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
WEDNESDAY
NORTHWEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 FOOT OR LESS.
LSZ142-252200-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
838 AM CDT TUE AUG 25 2026
REST OF TODAY
NORTHEAST WIND 5 TO 10 KNOTS BECOMING EAST IN
THE AFTERNOON. CHANCE OF RAIN SHOWERS THROUGH THE DAY. SLIGHT
CHANCE OF THUNDERSTORMS LATE IN THE MORNING, THEN CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS BECOMING WEST AFTER MIDNIGHT.
RAIN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN THE EVENING.
WAVES 1 FOOT OR LESS.
WEDNESDAY
NORTHWEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 FOOT OR LESS.
LSZ143-252200-
SILVER BAY HARBOR TO TWO HARBORS MN-
838 AM CDT TUE AUG 25 2026
REST OF TODAY
NORTHEAST WIND 5 TO 10 KNOTS BECOMING EAST IN
THE AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE
MORNING. CHANCE OF RAIN SHOWERS THROUGH THE DAY. CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING NORTH LATE IN
THE EVENING, THEN BECOMING WEST AFTER MIDNIGHT. CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE EVENING. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST IN THE
AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 FOOT OR LESS.
LSZ144-252200-
TWO HARBORS TO DULUTH MN-
838 AM CDT TUE AUG 25 2026
REST OF TODAY
NORTHEAST WIND 5 KNOTS BECOMING EAST IN THE LATE
MORNING AND AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS EARLY IN
THE MORNING. CHANCE OF RAIN SHOWERS THROUGH THE DAY. CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING NORTH LATE IN
THE EVENING, THEN BECOMING WEST AFTER MIDNIGHT. CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE EVENING. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST IN THE
AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR.
WAVES 1 FOOT OR LESS.
LSZ145-252200-
DULUTH MN TO PORT WING WI-
838 AM CDT TUE AUG 25 2026
REST OF TODAY
NORTH WIND 5 KNOTS BECOMING SOUTHWEST LATE IN
THE MORNING, THEN BECOMING SOUTHEAST EARLY IN THE AFTERNOON
BECOMING EAST LATE. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
EARLY IN THE MORNING, THEN CHANCE OF SHOWERS AND THUNDERSTORMS
LATE. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING WEST AFTER
MIDNIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING.
WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST LATE IN
THE AFTERNOON. SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR.
WAVES 1 FOOT OR LESS.
LSZ146-252200-
PORT WING TO SAND ISLAND WI-
838 AM CDT TUE AUG 25 2026
REST OF TODAY
NORTH WIND 5 KNOTS BECOMING SOUTHWEST LATE IN
THE MORNING, THEN BECOMING SOUTHEAST EARLY IN THE AFTERNOON
BECOMING EAST LATE. SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE
MORNING. CHANCE OF SHOWERS THROUGH THE DAY. CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING NORTH LATE IN
THE EVENING, THEN BECOMING WEST AFTER MIDNIGHT. CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE EVENING. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF SHOWERS IN
THE AFTERNOON. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 FOOT OR LESS.
LSZ147-252200-
SAND ISLAND TO BAYFIELD WI-
838 AM CDT TUE AUG 25 2026
REST OF TODAY
SOUTHEAST WIND 5 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS EARLY IN THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS LATE
IN THE MORNING, THEN CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
EAST WIND 5 KNOTS BECOMING SOUTHEAST LATE IN THE
EVENING, THEN BECOMING WEST AFTER MIDNIGHT. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS EARLY
IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.
WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 FOOT OR LESS.
LSZ150-252200-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
838 AM CDT TUE AUG 25 2026
REST OF TODAY
SOUTH WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS EARLY IN THE MORNING, THEN CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING WEST AFTER
MIDNIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING,
THEN SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS
RISING TO 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS LATE IN
THE MORNING, THEN EASING TO 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
WEDNESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 FOOT OR LESS.
LSZ121-252200-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
838 AM CDT TUE AUG 25 2026
REST OF TODAY
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS
LATE IN THE MORNING. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING WEST AFTER
MIDNIGHT. SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN THE
EVENING. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST LATE IN
THE AFTERNOON. SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY.
WAVES 1 FOOT OR LESS.
LSZ148-252200-
OAK POINT TO SAXON HARBOR WI-
838 AM CDT TUE AUG 25 2026
REST OF TODAY
SOUTHWEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
RAIN SHOWERS LATE IN THE MORNING. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING SOUTHWEST AFTER
MIDNIGHT. SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHWEST LATE IN THE AFTERNOON. SLIGHT CHANCE
OF SHOWERS. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
RAIN SHOWERS IN THE EVENING. 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