598
FZUS53 KDLH 041553
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
1052 AM CDT TUE AUG 4 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.
LSZ140-042200-
GRAND PORTAGE TO GRAND MARAIS MN-
1052 AM CDT TUE AUG 4 2026
REST OF TODAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS LATE. MOSTLY SUNNY. WAVES 2 TO
4 FEET.
TONIGHT
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS
EASING TO 5 KNOTS EARLY IN THE MORNING. MOSTLY CLEAR. WAVES 1 TO
3 FEET SUBSIDING TO 1 TO 2 FEET IN THE LATE EVENING AND
OVERNIGHT.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS RISING TO 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE AFTERNOON. SUNNY.
WAVES 1 TO 3 FEET.
WEDNESDAY NIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING WEST IN THE
LATE EVENING AND EARLY MORNING, THEN BECOMING SOUTHWEST EARLY IN
THE MORNING. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
LSZ141-042200-
GRAND MARAIS TO TACONITE HARBOR MN-
1052 AM CDT TUE AUG 4 2026
REST OF TODAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
WEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST IN THE LATE
EVENING AND OVERNIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 KNOTS BECOMING SOUTH LATE IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
EAST WIND 5 TO 10 KNOTS BECOMING NORTHEAST
LATE IN THE EVENING, THEN BECOMING VARIABLE 10 KNOTS OR LESS
AFTER MIDNIGHT BECOMING WEST 5 KNOTS EARLY IN THE MORNING. PARTLY
CLOUDY. WAVES 1 FOOT OR LESS.
LSZ142-042200-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
1052 AM CDT TUE AUG 4 2026
REST OF TODAY
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS LATE IN THE MORNING. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
WEST WIND 5 TO 10 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.
WEDNESDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST
5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE LATE MORNING
AND AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING
NORTHEAST LATE IN THE EVENING, THEN BECOMING NORTHWEST AFTER
MIDNIGHT BECOMING SOUTHWEST EARLY IN THE MORNING. PARTLY CLOUDY.
WAVES 1 FOOT OR LESS.
LSZ143-042200-
SILVER BAY HARBOR TO TWO HARBORS MN-
1052 AM CDT TUE AUG 4 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
WEST WIND 5 TO 10 KNOTS BECOMING VARIABLE 10 KNOTS OR
LESS. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE LATE
MORNING AND AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING NORTHEAST
LATE IN THE EVENING, THEN BECOMING SOUTHWEST AFTER MIDNIGHT.
PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
LSZ144-042200-
TWO HARBORS TO DULUTH MN-
1052 AM CDT TUE AUG 4 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
WEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 FOOT OR
LESS.
WEDNESDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR.
WAVES 1 FOOT OR LESS.
LSZ145-042200-
DULUTH MN TO PORT WING WI-
1052 AM CDT TUE AUG 4 2026
REST OF TODAY
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
LATE IN THE MORNING. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
WEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST EARLY IN
THE MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 FOOT OR
LESS.
WEDNESDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR.
WAVES 1 FOOT OR LESS.
LSZ146-042200-
PORT WING TO SAND ISLAND WI-
1052 AM CDT TUE AUG 4 2026
REST OF TODAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
WEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 FOOT OR
LESS.
WEDNESDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR.
WAVES 1 FOOT OR LESS.
LSZ147-042200-
SAND ISLAND TO BAYFIELD WI-
1052 AM CDT TUE AUG 4 2026
REST OF TODAY
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 TO
2 FEET.
TONIGHT
WEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
WEDNESDAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH LATE IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING SOUTHWEST
AFTER MIDNIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
LSZ150-042200-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
1052 AM CDT TUE AUG 4 2026
REST OF TODAY
WEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 TO
3 FEET SUBSIDING TO 1 TO 2 FEET IN THE AFTERNOON.
TONIGHT
WEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
WEDNESDAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING SOUTHWEST
AFTER MIDNIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
LSZ121-042200-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
1052 AM CDT TUE AUG 4 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
LATE IN THE MORNING. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
WEST WIND 5 TO 10 KNOTS EASING TO 5 KNOTS EARLY IN THE
MORNING. MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTHEAST LATE IN
THE AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST IN
THE LATE EVENING AND OVERNIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
LSZ148-042200-
OAK POINT TO SAXON HARBOR WI-
1052 AM CDT TUE AUG 4 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHWEST LATE. MOSTLY SUNNY. WAVES 1 TO
2 FEET.
TONIGHT
WEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST EARLY IN
THE MORNING. MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 KNOTS BECOMING EAST IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTH IN
THE LATE EVENING AND OVERNIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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