551
FZUS53 KDLH 181600
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
1100 AM CDT THU JUN 18 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.
LSZ140-182200-
GRAND PORTAGE TO GRAND MARAIS MN-
1100 AM CDT THU JUN 18 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
FRIDAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE LATE MORNING AND
AFTERNOON. SUNNY IN THE MORNING THEN BECOMING PARTLY SUNNY. WAVES
1 TO 2 FEET.
FRIDAY NIGHT
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS EASING TO 5 KNOTS EARLY IN THE MORNING. SLIGHT CHANCE OF
RAIN SHOWERS IN THE EVENING, THEN CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. WAVES 1 TO 2 FEET.
LSZ141-182200-
GRAND MARAIS TO TACONITE HARBOR MN-
1100 AM CDT THU JUN 18 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
THUNDERSTORMS EARLY IN THE AFTERNOON. SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
FRIDAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE LATE
MORNING AND AFTERNOON. SUNNY IN THE MORNING THEN BECOMING PARTLY
SUNNY. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
WEST WIND 5 KNOTS IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTHWEST 5 KNOTS EARLY
IN THE MORNING. CHANCE OF RAIN SHOWERS. WAVES 1 FOOT OR LESS.
LSZ142-182200-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
1100 AM CDT THU JUN 18 2026
REST OF TODAY
WEST WIND 5 KNOTS. MOSTLY SUNNY. WAVES 1 FOOT OR
LESS.
TONIGHT
NORTHWEST WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
FRIDAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE LATE
MORNING AND AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
WEST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTHWEST 5 KNOTS EARLY
IN THE MORNING. CHANCE OF RAIN SHOWERS THROUGH THE NIGHT. WAVES
1 FOOT OR LESS.
LSZ143-182200-
SILVER BAY HARBOR TO TWO HARBORS MN-
1100 AM CDT THU JUN 18 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
NORTHWEST WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
FRIDAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE LATE
MORNING AND AFTERNOON. CHANCE OF RAIN SHOWERS IN THE AFTERNOON.
WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
WEST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING WEST 5 KNOTS EARLY IN
THE MORNING. CHANCE OF RAIN SHOWERS THROUGH THE NIGHT. WAVES
1 FOOT OR LESS.
LSZ144-182200-
TWO HARBORS TO DULUTH MN-
1100 AM CDT THU JUN 18 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
FRIDAY
SOUTHWEST WIND 5 KNOTS. CHANCE OF RAIN SHOWERS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
SOUTHWEST WIND 5 KNOTS BECOMING WEST IN THE LATE
EVENING AND OVERNIGHT. CHANCE OF RAIN SHOWERS THROUGH THE NIGHT.
WAVES 1 FOOT OR LESS.
LSZ145-182200-
DULUTH MN TO PORT WING WI-
1100 AM CDT THU JUN 18 2026
REST OF TODAY
WEST WIND 10 TO 15 KNOTS EASING TO 5 TO 10 KNOTS
IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
WEST WIND 5 TO 10 KNOTS EASING TO 5 KNOTS EARLY IN THE
MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
FRIDAY
SOUTHWEST WIND 5 KNOTS. CHANCE OF RAIN SHOWERS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
SOUTHWEST WIND 5 KNOTS BECOMING WEST AFTER
MIDNIGHT. CHANCE OF RAIN SHOWERS THROUGH THE NIGHT. WAVES 1 FOOT
OR LESS.
LSZ146-182200-
PORT WING TO SAND ISLAND WI-
1100 AM CDT THU JUN 18 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
WEST WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
FRIDAY
SOUTHWEST WIND 5 KNOTS. SLIGHT CHANCE OF RAIN SHOWERS
IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
FRIDAY NIGHT
VARIABLE WINDS 10 KNOTS OR LESS BECOMING WEST
5 KNOTS AFTER MIDNIGHT. CHANCE OF RAIN SHOWERS THROUGH THE NIGHT.
WAVES 1 FOOT OR LESS.
LSZ147-182200-
SAND ISLAND TO BAYFIELD WI-
1100 AM CDT THU JUN 18 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
WEST WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
FRIDAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST LATE IN THE
AFTERNOON. SUNNY IN THE MORNING THEN BECOMING PARTLY SUNNY. WAVES
1 FOOT OR LESS.
FRIDAY NIGHT
VARIABLE WINDS 10 KNOTS OR LESS BECOMING WEST
5 KNOTS EARLY IN THE MORNING. CHANCE OF RAIN SHOWERS THROUGH THE
NIGHT. WAVES 1 FOOT OR LESS.
LSZ150-182200-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
1100 AM CDT THU JUN 18 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
FRIDAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE AFTERNOON.
SUNNY IN THE MORNING THEN BECOMING PARTLY SUNNY. WAVES 1 FOOT OR
LESS.
FRIDAY NIGHT
SOUTHWEST WIND 5 KNOTS. CHANCE OF RAIN SHOWERS.
WAVES 1 FOOT OR LESS.
LSZ121-182200-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
1100 AM CDT THU JUN 18 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
FRIDAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST LATE IN THE
AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
FRIDAY NIGHT
SOUTHWEST WIND 5 KNOTS. CHANCE OF RAIN SHOWERS
THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
LSZ148-182200-
OAK POINT TO SAXON HARBOR WI-
1100 AM CDT THU JUN 18 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
WEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES 1 FOOT
OR LESS.
FRIDAY
WEST WIND 5 KNOTS BECOMING SOUTH LATE IN THE AFTERNOON.
SUNNY IN THE MORNING THEN BECOMING PARTLY SUNNY. WAVES 1 FOOT OR
LESS.
FRIDAY NIGHT
SOUTHWEST WIND 5 KNOTS. CHANCE OF RAIN SHOWERS
THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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