630
FZUS53 KDLH 092156
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
456 PM CDT THU APR 9 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.
LSZ140-100400-
GRAND PORTAGE TO GRAND MARAIS MN-
456 PM CDT THU APR 9 2026
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES
1 TO 2 FEET.
FRIDAY
WEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST 10 TO
15 KNOTS IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
FRIDAY NIGHT
WEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST AFTER
MIDNIGHT. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
SATURDAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTH IN THE LATE
MORNING AND EARLY AFTERNOON, THEN BECOMING SOUTHEAST LATE IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ141-100400-
GRAND MARAIS TO TACONITE HARBOR MN-
456 PM CDT THU APR 9 2026
TONIGHT
NORTHWEST WIND 5 KNOTS. MOSTLY CLOUDY. WAVES 1 FOOT OR
LESS.
FRIDAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE AFTERNOON.
MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
SOUTHWEST WIND 5 KNOTS BECOMING NORTHWEST IN THE
LATE EVENING AND EARLY MORNING, THEN BECOMING VARIABLE 10 KNOTS
OR LESS EARLY IN THE MORNING. PARTLY CLOUDY. WAVES 1 FOOT OR
LESS.
SATURDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHEAST
5 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON, THEN BECOMING
EAST LATE IN THE AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS AND
SNOW SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ142-100400-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
456 PM CDT THU APR 9 2026
TONIGHT
WEST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTHWEST 5 KNOTS AFTER
MIDNIGHT. MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
FRIDAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE AFTERNOON.
MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
SOUTHWEST WIND 5 KNOTS BECOMING NORTHWEST IN THE
LATE EVENING AND EARLY MORNING, THEN BECOMING VARIABLE 10 KNOTS
OR LESS EARLY IN THE MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
SATURDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING EAST 5 KNOTS
IN THE AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON.
WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ143-100400-
SILVER BAY HARBOR TO TWO HARBORS MN-
456 PM CDT THU APR 9 2026
TONIGHT
WEST WIND 5 KNOTS BECOMING NORTHWEST AFTER MIDNIGHT.
MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
FRIDAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE LATE
MORNING AND AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
SOUTHWEST WIND 5 KNOTS BECOMING NORTHWEST IN THE
LATE EVENING AND EARLY MORNING, THEN BECOMING VARIABLE 10 KNOTS
OR LESS EARLY IN THE MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
SATURDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING EAST 5 KNOTS
IN THE LATE MORNING AND EARLY AFTERNOON, THEN RISING TO 5 TO
10 KNOTS LATE IN THE AFTERNOON. CHANCE OF RAIN SHOWERS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ144-100400-
TWO HARBORS TO DULUTH MN-
456 PM CDT THU APR 9 2026
TONIGHT
NORTHWEST WIND 5 KNOTS. MOSTLY CLOUDY. WAVES 1 FOOT OR
LESS.
FRIDAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE LATE
MORNING AND AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
SOUTHWEST WIND 5 KNOTS BECOMING NORTHWEST IN THE
LATE EVENING AND OVERNIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
SATURDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING EAST 5 TO
10 KNOTS IN THE LATE MORNING AND AFTERNOON. CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ145-100400-
DULUTH MN TO PORT WING WI-
456 PM CDT THU APR 9 2026
TONIGHT
WEST WIND 5 KNOTS. MOSTLY CLOUDY. WAVES 1 FOOT OR
LESS.
FRIDAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE AFTERNOON.
MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
SOUTHWEST WIND 5 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
SATURDAY
SOUTH WIND 5 KNOTS BECOMING EAST LATE IN THE
AFTERNOON. CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES 1 FOOT
OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ146-100400-
PORT WING TO SAND ISLAND WI-
456 PM CDT THU APR 9 2026
TONIGHT
WEST WIND 5 KNOTS BECOMING NORTHWEST IN THE LATE
EVENING AND OVERNIGHT. MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
FRIDAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST LATE IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
SOUTHWEST WIND 5 KNOTS UNTIL EARLY MORNING
BECOMING VARIABLE 10 KNOTS OR LESS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
SATURDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHEAST
5 KNOTS LATE IN THE MORNING, THEN BECOMING EAST IN THE AFTERNOON.
CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ147-100400-
SAND ISLAND TO BAYFIELD WI-
456 PM CDT THU APR 9 2026
TONIGHT
WEST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTHWEST 5 KNOTS AFTER
MIDNIGHT. MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
FRIDAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST LATE IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
SOUTHWEST WIND 5 KNOTS UNTIL EARLY MORNING
BECOMING VARIABLE 10 KNOTS OR LESS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
SATURDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTH
5 KNOTS LATE IN THE MORNING, THEN BECOMING EAST IN THE AFTERNOON.
CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ150-100400-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
456 PM CDT THU APR 9 2026
TONIGHT
WEST WIND 5 KNOTS BECOMING NORTHWEST AFTER MIDNIGHT.
MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
FRIDAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE AFTERNOON.
MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
SOUTHWEST WIND 5 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
SATURDAY
SOUTHWEST WIND 5 KNOTS BECOMING EAST IN THE
AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ148-100400-
OAK POINT TO SAXON HARBOR WI-
456 PM CDT THU APR 9 2026
TONIGHT
WEST WIND 5 KNOTS. MOSTLY CLOUDY. WAVES 1 FOOT OR
LESS.
FRIDAY
WEST WIND 5 KNOTS BECOMING SOUTH LATE IN THE AFTERNOON.
MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
SOUTHWEST WIND 5 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
SATURDAY
SOUTH WIND 5 KNOTS BECOMING SOUTHEAST IN THE
AFTERNOON. CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES 1 FOOT
OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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