943
FZUS53 KDLH 040400
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
1100 PM CDT MON AUG 3 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.
LSZ140-041000-
GRAND PORTAGE TO GRAND MARAIS MN-
1100 PM CDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM CDT TUESDAY
REST OF TONIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING
SOUTHWEST 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS AFTER
MIDNIGHT. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. RAIN SHOWERS AND THUNDERSTORMS TOWARD DAYBREAK. WAVES
1 FOOT OR LESS BUILDING TO 3 TO 5 FEET AFTER MIDNIGHT.
TUESDAY
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS IN THE LATE MORNING AND AFTERNOON. CHANCE
OF SHOWERS AND THUNDERSTORMS IN THE MORNING. WAVES 3 TO 5 FEET. A
SMALL CRAFT ADVISORY MAY BE NEEDED.
TUESDAY NIGHT
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. PARTLY CLOUDY. WAVES 2 TO 4 FEET SUBSIDING
TO 1 TO 2 FEET IN THE LATE EVENING AND OVERNIGHT.
WEDNESDAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTHWEST 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 3 FEET.
LSZ141-041000-
GRAND MARAIS TO TACONITE HARBOR MN-
1100 PM CDT MON AUG 3 2026
REST OF TONIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING
SOUTHWEST WITH GUSTS TO AROUND 20 KNOTS TOWARD DAYBREAK. CHANCE
OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. SHOWERS AND
THUNDERSTORMS TOWARD DAYBREAK. WAVES 1 TO 2 FEET.
TUESDAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING.
WAVES 1 TO 2 FEET.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST AFTER
MIDNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST WITH GUSTS TO
AROUND 20 KNOTS IN THE LATE MORNING AND AFTERNOON. MOSTLY SUNNY.
WAVES 1 FOOT OR LESS.
LSZ142-041000-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
1100 PM CDT MON AUG 3 2026
REST OF TONIGHT
EAST WIND 5 KNOTS BECOMING SOUTHWEST WITH
GUSTS TO AROUND 20 KNOTS TOWARD DAYBREAK. CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. RAIN SHOWERS AND THUNDERSTORMS
TOWARD DAYBREAK. WAVES 1 TO 2 FEET.
TUESDAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN THE
MORNING. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
MORNING. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
WEST WIND 5 KNOTS. PARTLY CLOUDY. WAVES 1 FOOT
OR LESS.
WEDNESDAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST WITH GUSTS TO
AROUND 20 KNOTS IN THE LATE MORNING AND AFTERNOON. MOSTLY SUNNY.
WAVES 1 FOOT OR LESS.
LSZ143-041000-
SILVER BAY HARBOR TO TWO HARBORS MN-
1100 PM CDT MON AUG 3 2026
REST OF TONIGHT
EAST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST
10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS TOWARD DAYBREAK.
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. RAIN SHOWERS
AND THUNDERSTORMS TOWARD DAYBREAK. WAVES 1 TO 3 FEET.
TUESDAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS EARLY IN
THE MORNING. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
MORNING. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
WEST WIND 5 KNOTS. PARTLY CLOUDY. WAVES 1 FOOT
OR LESS.
WEDNESDAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
LSZ144-041000-
TWO HARBORS TO DULUTH MN-
1100 PM CDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM CDT TUESDAY
REST OF TONIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING WEST
10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS TOWARD DAYBREAK.
CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. CHANCE OF SHOWERS AFTER
MIDNIGHT. THUNDERSTORMS TOWARD DAYBREAK. WAVES 1 TO 2 FEET
BUILDING TO 2 TO 4 FEET AFTER MIDNIGHT.
TUESDAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN THE
MORNING. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
MORNING. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
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.
LSZ145-041000-
DULUTH MN TO PORT WING WI-
1100 PM CDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM CDT TUESDAY
REST OF TONIGHT
SOUTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING SOUTHWEST WITH GUSTS TO AROUND 25 KNOTS TOWARD
DAYBREAK. CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.
SHOWERS AND THUNDERSTORMS TOWARD DAYBREAK. WAVES 1 TO 2 FEET
BUILDING TO 1 TO 3 FEET AFTER MIDNIGHT.
TUESDAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS
EASING TO 5 TO 10 KNOTS IN THE AFTERNOON. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE MORNING. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 FOOT OR
LESS.
LSZ146-041000-
PORT WING TO SAND ISLAND WI-
1100 PM CDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM CDT TUESDAY
REST OF TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS AFTER MIDNIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS
AFTER MIDNIGHT. SHOWERS AND THUNDERSTORMS TOWARD DAYBREAK. WAVES
1 TO 3 FEET.
TUESDAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS EARLY IN
THE MORNING THEN 20 KNOTS IN THE AFTERNOON. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE MORNING. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 KNOTS. SUNNY. WAVES 1 FOOT OR LESS.
LSZ147-041000-
SAND ISLAND TO BAYFIELD WI-
1100 PM CDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM CDT TUESDAY
REST OF TONIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING SOUTHWEST
TOWARD DAYBREAK. GUSTS UP TO 20 KNOTS. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS AFTER MIDNIGHT. SHOWERS AND THUNDERSTORMS
LIKELY TOWARD DAYBREAK. WAVES 1 TO 2 FEET.
TUESDAY
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS.
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING. WAVES 1 TO
2 FEET.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH LATE IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
LSZ150-041000-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
1100 PM CDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM CDT TUESDAY
REST OF TONIGHT
SOUTH WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS AFTER MIDNIGHT. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. SHOWERS AND
THUNDERSTORMS LIKELY TOWARD DAYBREAK. WAVES 1 TO 2 FEET.
TUESDAY
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
MORNING. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH LATE IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
LSZ121-041000-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
1100 PM CDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM CDT TUESDAY
REST OF TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. SHOWERS AND THUNDERSTORMS LIKELY TOWARD DAYBREAK. WAVES
1 TO 2 FEET.
TUESDAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS EARLY IN
THE MORNING. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING.
WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH LATE IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
LSZ148-041000-
OAK POINT TO SAXON HARBOR WI-
1100 PM CDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM CDT TUESDAY
REST OF TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS AFTER MIDNIGHT. CHANCE OF SHOWERS
AND THUNDERSTORMS TOWARD DAYBREAK. WAVES 1 TO 2 FEET.
TUESDAY
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS
BECOMING WEST 5 TO 10 KNOTS LATE IN THE AFTERNOON. SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS IN THE MORNING. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES
1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 KNOTS 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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