034
FZUS53 KDLH 211423
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
922 AM CDT FRI AUG 21 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.
LSZ140-212200-
GRAND PORTAGE TO GRAND MARAIS MN-
922 AM CDT FRI AUG 21 2026
REST OF TODAY
NORTHEAST WIND 5 TO 10 KNOTS BECOMING NORTH
EARLY IN THE AFTERNOON, THEN BECOMING SOUTHWEST LATE. MOSTLY
CLOUDY IN THE LATE MORNING AND EARLY AFTERNOON THEN BECOMING
MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST WITH
GUSTS TO AROUND 20 KNOTS AFTER MIDNIGHT. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE EVENING. CHANCE OF SPRINKLES AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
SATURDAY
NORTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
IN THE MORNING. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
SATURDAY NIGHT
NORTH WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
IN THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR
LESS.
LSZ141-212200-
GRAND MARAIS TO TACONITE HARBOR MN-
922 AM CDT FRI AUG 21 2026
REST OF TODAY
WEST WIND 5 KNOTS. MOSTLY CLOUDY IN THE LATE
MORNING AND EARLY AFTERNOON THEN BECOMING MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 5 KNOTS BECOMING NORTHWEST IN THE LATE
EVENING AND OVERNIGHT. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE EVENING. CHANCE OF SPRINKLES AFTER MIDNIGHT. WAVES 1 FOOT
OR LESS.
SATURDAY
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE MORNING. SUNNY. WAVES 1 FOOT OR LESS.
SATURDAY NIGHT
NORTH WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
LSZ142-212200-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
922 AM CDT FRI AUG 21 2026
REST OF TODAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST LATE.
MOSTLY CLOUDY IN THE LATE MORNING AND EARLY AFTERNOON THEN
CLEARING. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 5 KNOTS BECOMING NORTHWEST IN THE LATE
EVENING AND OVERNIGHT. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE EVENING. CHANCE OF SPRINKLES AFTER MIDNIGHT. WAVES 1 FOOT
OR LESS.
SATURDAY
NORTHWEST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 FOOT OR
LESS.
SATURDAY NIGHT
NORTHWEST WIND 5 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
LSZ143-212200-
SILVER BAY HARBOR TO TWO HARBORS MN-
922 AM CDT FRI AUG 21 2026
REST OF TODAY
WEST WIND 5 KNOTS. PARTLY SUNNY. WAVES 1 FOOT OR
LESS.
TONIGHT
WEST WIND 5 KNOTS BECOMING NORTHWEST AFTER MIDNIGHT.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN
CHANCE OF SPRINKLES AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
SATURDAY
NORTHWEST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 FOOT OR
LESS.
SATURDAY NIGHT
NORTH WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT
OR LESS.
LSZ144-212200-
TWO HARBORS TO DULUTH MN-
922 AM CDT FRI AUG 21 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY LATE IN
THE MORNING THEN BECOMING MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE EVENING, THEN CHANCE OF SPRINKLES AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
SATURDAY
NORTHWEST WIND 5 TO 10 KNOTS. PATCHY FOG IN THE
MORNING. WAVES 1 FOOT OR LESS.
SATURDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR.
WAVES 1 FOOT OR LESS.
LSZ145-212200-
DULUTH MN TO PORT WING WI-
922 AM CDT FRI AUG 21 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE EVENING, THEN CHANCE OF SPRINKLES AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
SATURDAY
NORTHWEST WIND 5 TO 10 KNOTS. PATCHY FOG IN THE
MORNING. WAVES 1 FOOT OR LESS.
SATURDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR.
WAVES 1 FOOT OR LESS.
LSZ146-212200-
PORT WING TO SAND ISLAND WI-
922 AM CDT FRI AUG 21 2026
REST OF TODAY
WEST WIND 5 KNOTS. MOSTLY CLOUDY IN THE LATE
MORNING AND EARLY AFTERNOON THEN CLEARING. WAVES 1 FOOT OR LESS.
TONIGHT
WEST WIND 5 KNOTS BECOMING NORTHWEST EARLY IN THE
MORNING. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE EVENING. CHANCE OF SPRINKLES AFTER MIDNIGHT. WAVES 1 FOOT OR
LESS.
SATURDAY
NORTHWEST WIND 5 KNOTS. SUNNY. WAVES 1 FOOT OR LESS.
SATURDAY NIGHT
NORTH WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT
OR LESS.
LSZ147-212200-
SAND ISLAND TO BAYFIELD WI-
922 AM CDT FRI AUG 21 2026
REST OF TODAY
WEST WIND 5 KNOTS. MOSTLY CLOUDY IN THE LATE
MORNING AND EARLY AFTERNOON THEN CLEARING. WAVES 1 FOOT OR LESS.
TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS BECOMING WEST 5 KNOTS
IN THE LATE EVENING AND OVERNIGHT. SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING. CHANCE OF SPRINKLES THROUGH THE NIGHT. WAVES
1 FOOT OR LESS.
SATURDAY
NORTHWEST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 FOOT OR
LESS.
SATURDAY NIGHT
NORTHWEST WIND 5 KNOTS BECOMING NORTH EARLY IN
THE MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
LSZ150-212200-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
922 AM CDT FRI AUG 21 2026
REST OF TODAY
WEST WIND 5 KNOTS. MOSTLY CLOUDY IN THE LATE
MORNING AND EARLY AFTERNOON THEN BECOMING MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 5 KNOTS BECOMING NORTHWEST AFTER
MIDNIGHT. CHANCE OF SPRINKLES THROUGH THE NIGHT. SLIGHT CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
SATURDAY
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
UNTIL LATE AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
SATURDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTH
AFTER MIDNIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
LSZ121-212200-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
922 AM CDT FRI AUG 21 2026
REST OF TODAY
NORTHWEST WIND 5 KNOTS BECOMING NORTH LATE.
MOSTLY CLOUDY IN THE LATE MORNING AND EARLY AFTERNOON THEN
BECOMING MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
WEST WIND 5 KNOTS BECOMING NORTHWEST AFTER MIDNIGHT.
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE NIGHT. WAVES 1 FOOT OR LESS.
SATURDAY
NORTHWEST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 FOOT OR
LESS.
SATURDAY NIGHT
NORTHWEST WIND 5 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
LSZ148-212200-
OAK POINT TO SAXON HARBOR WI-
922 AM CDT FRI AUG 21 2026
REST OF TODAY
WEST WIND 5 KNOTS BECOMING NORTHWEST IN THE
AFTERNOON. MOSTLY CLOUDY IN THE LATE MORNING AND EARLY AFTERNOON
THEN BECOMING MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 5 KNOTS BECOMING WEST AFTER MIDNIGHT.
CHANCE OF SPRINKLES IN THE EVENING, THEN CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 FOOT OR
LESS.
SATURDAY
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE MORNING AND EARLY AFTERNOON. SUNNY. WAVES 1 FOOT OR
LESS.
SATURDAY NIGHT
NORTH WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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