902
FZUS53 KDLH 200452
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
1152 PM CDT WED AUG 19 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.
LSZ140-201000-
GRAND PORTAGE TO GRAND MARAIS MN-
1152 PM CDT WED AUG 19 2026
REST OF TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY CLOUDY
LATE IN THE EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR
LESS.
THURSDAY
NORTHEAST WIND 5 KNOTS BECOMING SOUTHEAST IN THE LATE
MORNING AND EARLY AFTERNOON, THEN BECOMING EAST LATE IN THE
AFTERNOON. CHANCE OF RAIN SHOWERS THROUGH THE DAY. SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN
SHOWERS IN THE EVENING. 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.
PARTLY SUNNY. WAVES 1 FOOT OR LESS.
LSZ141-201000-
GRAND MARAIS TO TACONITE HARBOR MN-
1152 PM CDT WED AUG 19 2026
REST OF TONIGHT
NORTH WIND 5 KNOTS LATE IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS. PARTLY CLOUDY LATE IN THE
EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 5 KNOTS BECOMING EAST IN THE LATE
MORNING AND AFTERNOON. CHANCE OF RAIN SHOWERS IN THE MORNING,
THEN RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS EASING TO 5 KNOTS
EARLY IN THE MORNING. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING. WAVES 1 FOOT OR LESS.
FRIDAY
NORTHEAST WIND 5 KNOTS BECOMING SOUTHEAST EARLY IN THE
AFTERNOON, THEN BECOMING SOUTHWEST LATE IN THE AFTERNOON. PARTLY
SUNNY. WAVES 1 FOOT OR LESS.
LSZ142-201000-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
1152 PM CDT WED AUG 19 2026
REST OF TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS. SLIGHT CHANCE
OF RAIN SHOWERS TOWARD DAYBREAK. WAVES 1 FOOT OR LESS.
THURSDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHEAST
5 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON, THEN BECOMING
NORTHEAST LATE IN THE AFTERNOON. RAIN SHOWERS LIKELY THROUGH THE
DAY. CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR
LESS.
THURSDAY NIGHT
NORTHEAST WIND 5 KNOTS UNTIL EARLY MORNING
BECOMING VARIABLE 10 KNOTS OR LESS. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. WAVES 1 FOOT OR LESS.
FRIDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING EAST 5 KNOTS
EARLY IN THE AFTERNOON, THEN BECOMING SOUTH LATE IN THE
AFTERNOON. PARTLY SUNNY. WAVES 1 FOOT OR LESS.
LSZ143-201000-
SILVER BAY HARBOR TO TWO HARBORS MN-
1152 PM CDT WED AUG 19 2026
REST OF TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS BECOMING NORTH
5 KNOTS TOWARD DAYBREAK. SLIGHT CHANCE OF RAIN SHOWERS TOWARD
DAYBREAK. WAVES 1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 5 KNOTS BECOMING EAST IN THE LATE
MORNING AND EARLY AFTERNOON, THEN BECOMING NORTHEAST LATE IN THE
AFTERNOON. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING, THEN RAIN SHOWERS LIKELY AND CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
NORTHEAST WIND 5 KNOTS. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. WAVES 1 FOOT OR LESS.
FRIDAY
NORTH WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING EAST 5 KNOTS EARLY IN
THE AFTERNOON BECOMING SOUTH. SLIGHT CHANCE OF RAIN SHOWERS IN
THE MORNING. WAVES 1 FOOT OR LESS.
LSZ144-201000-
TWO HARBORS TO DULUTH MN-
1152 PM CDT WED AUG 19 2026
REST OF TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS BECOMING
SOUTHWEST 5 KNOTS TOWARD DAYBREAK. MOSTLY CLOUDY. WAVES 1 FOOT OR
LESS.
THURSDAY
EAST WIND 5 KNOTS. SLIGHT CHANCE OF THUNDERSTORMS IN
THE MORNING. RAIN SHOWERS LIKELY THROUGH THE DAY. CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. RAIN SHOWERS
LIKELY AND CHANCE OF THUNDERSTORMS IN THE EVENING. WAVES 1 FOOT
OR LESS.
FRIDAY
NORTH WIND 5 KNOTS BECOMING SOUTH LATE IN THE
AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE MORNING. WAVES
1 FOOT OR LESS.
LSZ145-201000-
DULUTH MN TO PORT WING WI-
1152 PM CDT WED AUG 19 2026
REST OF TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTH
5 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY LATE IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTH WIND 5 KNOTS BECOMING NORTHEAST LATE IN THE
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING. RAIN
SHOWERS LIKELY THROUGH THE DAY. CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. RAIN SHOWERS
LIKELY AND CHANCE OF THUNDERSTORMS IN THE EVENING. WAVES 1 FOOT
OR LESS.
FRIDAY
NORTH WIND 5 KNOTS BECOMING NORTHWEST LATE IN THE
AFTERNOON. MOSTLY CLOUDY IN THE MORNING THEN CLEARING. WAVES
1 FOOT OR LESS.
LSZ146-201000-
PORT WING TO SAND ISLAND WI-
1152 PM CDT WED AUG 19 2026
REST OF TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS BECOMING
SOUTHWEST 5 KNOTS TOWARD DAYBREAK. PARTLY CLOUDY LATE IN THE
EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTH WIND 5 KNOTS BECOMING NORTHEAST LATE IN THE
AFTERNOON. RAIN SHOWERS LIKELY THROUGH THE DAY. CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
NORTHEAST WIND 5 KNOTS. SHOWERS LIKELY AND
CHANCE OF THUNDERSTORMS IN THE EVENING. WAVES 1 FOOT OR LESS.
FRIDAY
NORTH WIND 5 KNOTS UNTIL LATE AFTERNOON BECOMING
VARIABLE 10 KNOTS OR LESS. MOSTLY CLOUDY IN THE MORNING THEN
CLEARING. WAVES 1 FOOT OR LESS.
LSZ147-201000-
SAND ISLAND TO BAYFIELD WI-
1152 PM CDT WED AUG 19 2026
REST OF TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS BECOMING
SOUTHWEST 5 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY LATE IN THE
EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTH WIND 5 KNOTS BECOMING SOUTHEAST IN THE LATE
MORNING AND AFTERNOON. CHANCE OF RAIN SHOWERS IN THE MORNING,
THEN RAIN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
EAST WIND 5 KNOTS BECOMING NORTH AFTER
MIDNIGHT. SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN THE
EVENING. WAVES 1 FOOT OR LESS.
FRIDAY
NORTH WIND 5 KNOTS BECOMING SOUTHEAST LATE IN THE
AFTERNOON. PARTLY SUNNY IN THE MORNING THEN CLEARING. WAVES
1 FOOT OR LESS.
LSZ150-201000-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
1152 PM CDT WED AUG 19 2026
REST OF TONIGHT
SOUTHWEST WIND 5 KNOTS. PARTLY CLOUDY LATE IN
THE EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 5 KNOTS BECOMING EAST LATE IN THE
AFTERNOON. CHANCE OF RAIN SHOWERS IN THE MORNING, THEN RAIN
SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
EAST WIND 5 KNOTS BECOMING NORTHEAST AFTER
MIDNIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING.
WAVES 1 FOOT OR LESS.
FRIDAY
NORTH WIND 5 KNOTS BECOMING SOUTHWEST LATE IN THE
AFTERNOON. PARTLY SUNNY IN THE MORNING THEN CLEARING. WAVES
1 FOOT OR LESS.
LSZ121-201000-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
1152 PM CDT WED AUG 19 2026
REST OF TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS BECOMING
SOUTHWEST 5 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY LATE IN THE
EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTHEAST IN THE LATE
MORNING AND AFTERNOON. CHANCE OF RAIN SHOWERS IN THE MORNING,
THEN RAIN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
EAST WIND 5 KNOTS BECOMING SOUTHEAST LATE IN
THE EVENING, THEN BECOMING NORTHWEST AFTER MIDNIGHT BECOMING
NORTH EARLY IN THE MORNING. SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS IN THE EVENING. WAVES 1 FOOT OR LESS.
FRIDAY
NORTH WIND 5 KNOTS BECOMING NORTHEAST LATE IN THE
AFTERNOON. MOSTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY
SUNNY. WAVES 1 FOOT OR LESS.
LSZ148-201000-
OAK POINT TO SAXON HARBOR WI-
1152 PM CDT WED AUG 19 2026
REST OF TONIGHT
SOUTH WIND 5 KNOTS. PARTLY CLOUDY LATE IN THE
EVENING THEN BECOMING MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
SOUTH WIND 5 KNOTS BECOMING SOUTHEAST IN THE
AFTERNOON. CHANCE OF RAIN SHOWERS IN THE MORNING, THEN RAIN
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
EAST WIND 5 KNOTS BECOMING WEST AFTER MIDNIGHT,
THEN BECOMING NORTHWEST EARLY IN THE MORNING. SHOWERS LIKELY AND
CHANCE OF THUNDERSTORMS IN THE EVENING. WAVES 1 FOOT OR LESS.
FRIDAY
NORTH WIND 5 KNOTS. MOSTLY CLOUDY IN THE MORNING THEN
BECOMING MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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