274
FZUS53 KDLH 302258
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
558 PM CDT THU APR 30 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.
LSZ140-010400-
GRAND PORTAGE TO GRAND MARAIS MN-
558 PM CDT THU APR 30 2026
TONIGHT
WEST WIND 5 TO 10 KNOTS BECOMING NORTH IN THE LATE
EVENING AND OVERNIGHT. CHANCE OF SPRINKLES UNTIL EARLY MORNING.
CHANCE OF FLURRIES THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
FRIDAY
NORTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTHEAST EARLY
IN THE AFTERNOON, THEN BECOMING SOUTHWEST LATE IN THE AFTERNOON.
MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST
AFTER MIDNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
SATURDAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTHWEST 10 TO
15 KNOTS IN THE LATE MORNING AND AFTERNOON. MOSTLY SUNNY. WAVES
1 TO 2 FEET.
LSZ141-010400-
GRAND MARAIS TO TACONITE HARBOR MN-
558 PM CDT THU APR 30 2026
TONIGHT
WEST WIND 5 KNOTS BECOMING NORTH IN THE LATE EVENING
AND OVERNIGHT. CHANCE OF SPRINKLES UNTIL EARLY MORNING. CHANCE OF
FLURRIES THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
FRIDAY
NORTH WIND 5 KNOTS BECOMING EAST LATE IN THE MORNING,
THEN BECOMING SOUTH IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT
OR LESS.
FRIDAY NIGHT
SOUTHWEST WIND 5 KNOTS BECOMING NORTHWEST AFTER
MIDNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
SATURDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST
5 TO 10 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON, THEN
BECOMING SOUTH LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT
OR LESS.
LSZ142-010400-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
558 PM CDT THU APR 30 2026
TONIGHT
SOUTHWEST WIND 5 KNOTS BECOMING NORTH IN THE LATE
EVENING AND OVERNIGHT. CHANCE OF SPRINKLES AND FLURRIES IN THE
EVENING. WAVES 1 FOOT OR LESS.
FRIDAY
NORTH WIND 5 KNOTS BECOMING SOUTH LATE IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
SOUTH WIND 5 KNOTS BECOMING NORTHWEST AFTER
MIDNIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
SATURDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST
5 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON, THEN BECOMING
SOUTH LATE IN THE AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
LSZ143-010400-
SILVER BAY HARBOR TO TWO HARBORS MN-
558 PM CDT THU APR 30 2026
TONIGHT
SOUTH WIND 5 KNOTS BECOMING NORTH IN THE LATE EVENING
AND OVERNIGHT. CHANCE OF SPRINKLES AND FLURRIES IN THE EVENING.
WAVES 1 FOOT OR LESS.
FRIDAY
NORTH WIND 5 KNOTS BECOMING SOUTHEAST IN THE AFTERNOON.
MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
EAST WIND 5 KNOTS BECOMING NORTH IN THE LATE
EVENING AND EARLY MORNING, THEN BECOMING NORTHWEST EARLY IN THE
MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
SATURDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTH
5 KNOTS IN THE LATE MORNING AND AFTERNOON. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
LSZ144-010400-
TWO HARBORS TO DULUTH MN-
558 PM CDT THU APR 30 2026
TONIGHT
EAST WIND 5 KNOTS BECOMING NORTH IN THE LATE EVENING
AND OVERNIGHT. CHANCE OF SPRINKLES AND FLURRIES IN THE EVENING.
WAVES 1 FOOT OR LESS.
FRIDAY
NORTH WIND 5 KNOTS BECOMING EAST IN THE LATE MORNING
AND AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
NORTHEAST WIND 5 KNOTS BECOMING NORTHWEST EARLY
IN THE MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
SATURDAY
SOUTHWEST WIND 5 KNOTS. MOSTLY SUNNY. WAVES 1 FOOT OR
LESS.
LSZ145-010400-
DULUTH MN TO PORT WING WI-
558 PM CDT THU APR 30 2026
TONIGHT
NORTHEAST WIND 5 KNOTS BECOMING NORTH AFTER MIDNIGHT.
CHANCE OF SPRINKLES AND FLURRIES IN THE EVENING. WAVES 1 FOOT OR
LESS.
FRIDAY
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
FRIDAY NIGHT
NORTHEAST WIND 5 KNOTS BECOMING WEST AFTER
MIDNIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
SATURDAY
SOUTHWEST WIND 5 KNOTS. MOSTLY SUNNY. WAVES 1 FOOT OR
LESS.
LSZ146-010400-
PORT WING TO SAND ISLAND WI-
558 PM CDT THU APR 30 2026
TONIGHT
NORTHEAST WIND 5 KNOTS BECOMING NORTHWEST LATE IN THE
EVENING, THEN BECOMING NORTH AFTER MIDNIGHT. CHANCE OF SPRINKLES
AND FLURRIES IN THE EVENING. WAVES 1 FOOT OR LESS.
FRIDAY
NORTHEAST WIND 5 KNOTS. MOSTLY SUNNY. WAVES 1 FOOT OR
LESS.
FRIDAY NIGHT
EAST WIND 5 KNOTS BECOMING SOUTHWEST AFTER
MIDNIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
SATURDAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH LATE IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
LSZ147-010400-
SAND ISLAND TO BAYFIELD WI-
558 PM CDT THU APR 30 2026
TONIGHT
WEST WIND 5 KNOTS BECOMING NORTH AFTER MIDNIGHT.
CHANCE OF SPRINKLES AND FLURRIES IN THE EVENING. WAVES 1 FOOT OR
LESS.
FRIDAY
NORTHEAST WIND 5 KNOTS BECOMING SOUTHEAST LATE IN THE
AFTERNOON. PARTLY SUNNY IN THE MORNING THEN CLEARING. WAVES
1 FOOT OR LESS.
FRIDAY NIGHT
SOUTH WIND 5 KNOTS BECOMING SOUTHWEST EARLY IN
THE MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
SATURDAY
WEST WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING SOUTH 5 KNOTS IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
LSZ150-010400-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
558 PM CDT THU APR 30 2026
TONIGHT
NORTHWEST WIND 5 KNOTS BECOMING NORTH AFTER MIDNIGHT.
CHANCE OF SPRINKLES AND FLURRIES IN THE EVENING. CHANCE OF
SPRINKLES AND FLURRIES LATE IN THE NIGHT. WAVES 1 FOOT OR LESS.
FRIDAY
NORTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTHEAST LATE IN
THE AFTERNOON. PARTLY SUNNY IN THE MORNING THEN CLEARING. WAVES
1 FOOT OR LESS.
FRIDAY NIGHT
SOUTH WIND 5 KNOTS BECOMING SOUTHWEST EARLY IN
THE MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
SATURDAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
LSZ121-010400-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
558 PM CDT THU APR 30 2026
TONIGHT
NORTHEAST WIND 5 KNOTS BECOMING NORTH IN THE LATE
EVENING AND OVERNIGHT. CHANCE OF SPRINKLES AND FLURRIES IN THE
EVENING. CHANCE OF FLURRIES LATE IN THE NIGHT. WAVES 1 FOOT OR
LESS.
FRIDAY
NORTH WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
PARTLY SUNNY IN THE MORNING THEN CLEARING. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST AFTER
MIDNIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
SATURDAY
WEST WIND 5 KNOTS BECOMING NORTHWEST EARLY IN THE
AFTERNOON, THEN BECOMING SOUTHEAST LATE IN THE AFTERNOON. SUNNY.
WAVES 1 FOOT OR LESS.
LSZ148-010400-
OAK POINT TO SAXON HARBOR WI-
558 PM CDT THU APR 30 2026
TONIGHT
NORTHEAST WIND 5 KNOTS BECOMING NORTH IN THE LATE
EVENING AND OVERNIGHT. CHANCE OF SPRINKLES AND FLURRIES IN THE
EVENING. CHANCE OF FLURRIES AND SPRINKLES LATE IN THE NIGHT.
WAVES 1 FOOT OR LESS.
FRIDAY
NORTH WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
PARTLY SUNNY IN THE MORNING THEN CLEARING. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST AFTER
MIDNIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
SATURDAY
SOUTHWEST WIND 5 KNOTS BECOMING NORTHEAST EARLY IN
THE AFTERNOON, THEN BECOMING EAST LATE IN THE AFTERNOON. SUNNY.
WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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