497
FZUS53 KDLH 161447
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
947 AM CDT TUE SEP 16 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.
LSZ140-141-162215-
GRAND PORTAGE TO GRAND MARAIS MN-
GRAND MARAIS TO TACONITE HARBOR MN-
947 AM CDT TUE SEP 16 2025
REST OF TODAY
SOUTH WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE AFTERNOON. PATCHY FOG LATE IN THE MORNING, THEN
AREAS OF DENSE FOG IN THE AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING SOUTHWEST IN THE
LATE EVENING AND OVERNIGHT. PATCHY DENSE FOG IN THE EVENING, THEN
AREAS OF DENSE FOG AFTER MIDNIGHT. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
WEDNESDAY
WEST WIND 5 KNOTS. PATCHY DENSE FOG IN THE MORNING.
WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHWEST WIND 5 KNOTS BECOMING NORTHEAST IN
THE LATE EVENING AND OVERNIGHT. SLIGHT CHANCE OF RAIN SHOWERS
AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
LSZ142-162215-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
947 AM CDT TUE SEP 16 2025
REST OF TODAY
EAST WIND 5 KNOTS BECOMING SOUTHEAST IN THE
AFTERNOON. PATCHY FOG LATE IN THE MORNING, THEN AREAS OF DENSE
FOG IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
EAST WIND 5 KNOTS BECOMING SOUTHWEST AFTER MIDNIGHT,
THEN BECOMING VARIABLE 10 KNOTS OR LESS EARLY IN THE MORNING.
PATCHY FOG IN THE EVENING. AREAS OF DENSE FOG AFTER MIDNIGHT.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH THE NIGHT.
WAVES 1 FOOT OR LESS.
WEDNESDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING WEST
5 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON, THEN BECOMING
VARIABLE 10 KNOTS OR LESS LATE IN THE AFTERNOON. WIDESPREAD DENSE
FOG IN THE MORNING. SLIGHT CHANCE OF RAIN SHOWERS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHWEST WIND 5 KNOTS BECOMING NORTHEAST IN
THE LATE EVENING AND OVERNIGHT. SLIGHT CHANCE OF RAIN SHOWERS
THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
LSZ143-162215-
SILVER BAY HARBOR TO TWO HARBORS MN-
947 AM CDT TUE SEP 16 2025
REST OF TODAY
EAST WIND 5 KNOTS BECOMING SOUTHEAST IN THE
AFTERNOON. AREAS OF FOG THROUGH THE DAY. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
NORTH, THEN BECOMING WEST AFTER MIDNIGHT BECOMING VARIABLE
10 KNOTS OR LESS. PATCHY FOG IN THE EVENING. AREAS OF DENSE FOG
AFTER MIDNIGHT. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
WEDNESDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST
5 KNOTS EARLY IN THE AFTERNOON, THEN BECOMING SOUTH LATE IN THE
AFTERNOON. WIDESPREAD DENSE FOG IN THE MORNING. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS THROUGH THE DAY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 1 FOOT OR LESS.
LSZ144-145-162215-
TWO HARBORS TO DULUTH MN-DULUTH MN TO PORT WING WI-
947 AM CDT TUE SEP 16 2025
REST OF TODAY
EAST WIND 5 TO 10 KNOTS. PATCHY FOG LATE IN THE
MORNING, THEN AREAS OF DENSE FOG IN THE AFTERNOON. WAVES 1 FOOT
OR LESS.
TONIGHT
EAST WIND 5 KNOTS BECOMING SOUTHWEST AFTER MIDNIGHT.
PATCHY FOG IN THE EVENING. AREAS OF DENSE FOG AFTER MIDNIGHT.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH THE NIGHT.
WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 KNOTS BECOMING NORTHWEST EARLY IN THE
AFTERNOON, THEN BECOMING NORTHEAST LATE IN THE AFTERNOON.
WIDESPREAD DENSE FOG IN THE MORNING. SLIGHT CHANCE OF RAIN
SHOWERS IN THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE DAY. CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR
LESS.
WEDNESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 FOOT OR LESS.
LSZ146-162215-
PORT WING TO SAND ISLAND WI-
947 AM CDT TUE SEP 16 2025
REST OF TODAY
SOUTHWEST WIND 5 KNOTS BECOMING EAST IN THE
AFTERNOON. AREAS OF FOG THROUGH THE DAY. WAVES 1 FOOT OR LESS.
TONIGHT
EAST WIND 5 KNOTS BECOMING SOUTHWEST AFTER MIDNIGHT.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH THE NIGHT.
AREAS OF DENSE FOG AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 KNOTS IN THE MORNING BECOMING VARIABLE
10 KNOTS OR LESS. WIDESPREAD DENSE FOG IN THE MORNING. SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH THE DAY. WAVES 1 FOOT
OR LESS.
WEDNESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
RAIN SHOWERS IN THE EVENING. SLIGHT CHANCE OF THUNDERSTORMS
THROUGH THE NIGHT. CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
LSZ147-162215-
SAND ISLAND TO BAYFIELD WI-
947 AM CDT TUE SEP 16 2025
REST OF TODAY
SOUTH WIND 5 KNOTS BECOMING SOUTHEAST LATE.
PATCHY FOG LATE IN THE MORNING. AREAS OF DENSE FOG EARLY IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHEAST WIND 5 KNOTS BECOMING WEST EARLY IN THE
MORNING. PATCHY FOG AFTER MIDNIGHT. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 KNOTS. PATCHY FOG IN THE MORNING. SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH THE DAY. WAVES 1 FOOT
OR LESS.
WEDNESDAY NIGHT
SOUTHEAST WIND 5 KNOTS BECOMING NORTHEAST IN
THE LATE EVENING AND OVERNIGHT. SLIGHT CHANCE OF THUNDERSTORMS IN
THE EVENING. SLIGHT CHANCE OF RAIN SHOWERS THROUGH THE NIGHT.
WAVES 1 FOOT OR LESS.
LSZ121-162215-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
947 AM CDT TUE SEP 16 2025
REST OF TODAY
SOUTH WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 5 KNOTS. PATCHY FOG AFTER MIDNIGHT.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 KNOTS BECOMING NORTHWEST LATE IN THE
MORNING, THEN BECOMING NORTHEAST IN THE AFTERNOON. PATCHY FOG IN
THE MORNING. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
MORNING, THEN CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 FOOT OR LESS.
LSZ148-162215-
OAK POINT TO SAXON HARBOR WI-
947 AM CDT TUE SEP 16 2025
REST OF TODAY
SOUTH WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS EASING TO 5 KNOTS EARLY
IN THE MORNING. PATCHY FOG AFTER MIDNIGHT. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 KNOTS BECOMING NORTHEAST LATE IN
THE AFTERNOON. PATCHY FOG IN THE MORNING. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS THROUGH THE DAY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN
SHOWERS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
LSZ150-162215-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
947 AM CDT TUE SEP 16 2025
REST OF TODAY
SOUTH WIND 5 KNOTS. PATCHY DENSE FOG LATE IN THE
MORNING. AREAS OF DENSE FOG EARLY IN THE AFTERNOON, THEN PATCHY
DENSE FOG LATE. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING WEST EARLY IN THE
MORNING. PATCHY FOG AFTER MIDNIGHT. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 KNOTS. PATCHY FOG IN THE MORNING. SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH THE DAY. WAVES 1 FOOT
OR LESS.
WEDNESDAY NIGHT
SOUTHEAST WIND 5 KNOTS BECOMING NORTHEAST WITH
GUSTS TO AROUND 20 KNOTS IN THE LATE EVENING AND OVERNIGHT.
SLIGHT CHANCE OF RAIN SHOWERS. WAVES 1 TO 2 FEET.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
NLY
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