844
FZUS53 KDLH 182321
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
621 PM CDT SAT JUL 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.
LSZ140-191000-
GRAND PORTAGE TO GRAND MARAIS MN-
621 PM CDT SAT JUL 18 2026
REST OF TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS EASING TO
5 KNOTS AFTER MIDNIGHT. PATCHY SMOKE EARLY IN THE EVENING, THEN
AREAS OF SMOKE IN THE LATE EVENING AND EARLY MORNING. SMOKE
TOWARD DAYBREAK. WAVES 1 FOOT OR LESS.
SUNDAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SMOKE IN THE MORNING, THEN AREAS OF SMOKE IN THE
AFTERNOON. WAVES 1 TO 2 FEET.
SUNDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE MORNING. PATCHY SMOKE IN THE EVENING.
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. CHANCE OF RAIN
SHOWERS THROUGH THE NIGHT. CHANCE OF THUNDERSTORMS AFTER
MIDNIGHT. WAVES 1 TO 2 FEET.
MONDAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE LATE MORNING AND AFTERNOON. SLIGHT
CHANCE OF THUNDERSTORMS IN THE MORNING. CHANCE OF RAIN SHOWERS
THROUGH THE DAY. CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES
1 TO 3 FEET BUILDING TO 2 TO 4 FEET IN THE LATE MORNING AND
AFTERNOON. A SMALL CRAFT ADVISORY MAY BE NEEDED.
LSZ141-191000-
GRAND MARAIS TO TACONITE HARBOR MN-
621 PM CDT SAT JUL 18 2026
REST OF TONIGHT
WEST WIND 5 TO 10 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS. AREAS OF SMOKE. WAVES 1 FOOT
OR LESS.
SUNDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTH 5 KNOTS
IN THE LATE MORNING AND AFTERNOON. AREAS OF SMOKE THROUGH THE
DAY. SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES 1 FOOT
OR LESS.
SUNDAY NIGHT
SOUTHWEST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS, THEN BECOMING WEST 5 KNOTS
AFTER MIDNIGHT. PATCHY SMOKE IN THE EVENING. CHANCE OF SHOWERS
AND THUNDERSTORMS THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
MONDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
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 TO 2 FEET.
LSZ142-191000-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
621 PM CDT SAT JUL 18 2026
REST OF TONIGHT
SOUTHWEST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS. AREAS OF SMOKE THROUGH THE
NIGHT. CHANCE OF SPRINKLES AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
SUNDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTH 5 KNOTS
IN THE AFTERNOON. AREAS OF SMOKE THROUGH THE DAY. CHANCE OF
SPRINKLES IN THE MORNING. SLIGHT CHANCE OF RAIN SHOWERS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
SUNDAY NIGHT
SOUTHWEST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS, THEN BECOMING SOUTHWEST
5 KNOTS AFTER MIDNIGHT. PATCHY SMOKE IN THE EVENING. SLIGHT
CHANCE OF RAIN SHOWERS IN THE EVENING. SLIGHT CHANCE OF
THUNDERSTORMS THROUGH THE NIGHT. CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
MONDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS LATE IN THE AFTERNOON. SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. CHANCE OF RAIN SHOWERS THROUGH THE
DAY. CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FEET.
LSZ143-191000-
SILVER BAY HARBOR TO TWO HARBORS MN-
621 PM CDT SAT JUL 18 2026
REST OF TONIGHT
SOUTHWEST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS. AREAS OF SMOKE THROUGH THE
NIGHT. CHANCE OF SPRINKLES AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
SUNDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTH 5 KNOTS
IN THE LATE MORNING AND AFTERNOON. AREAS OF SMOKE IN THE MORNING,
THEN PATCHY SMOKE IN THE AFTERNOON. CHANCE OF SPRINKLES IN THE
MORNING, THEN SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON.
WAVES 1 FOOT OR LESS.
SUNDAY NIGHT
SOUTH WIND 5 KNOTS BECOMING SOUTHWEST IN THE LATE
EVENING AND OVERNIGHT. SLIGHT CHANCE OF SHOWERS IN THE EVENING.
SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE NIGHT. CHANCE OF
SHOWERS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
MONDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS LATE IN THE AFTERNOON. SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. CHANCE OF RAIN SHOWERS THROUGH THE
DAY. CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FEET.
LSZ144-191000-
TWO HARBORS TO DULUTH MN-
621 PM CDT SAT JUL 18 2026
REST OF TONIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTHEAST
5 KNOTS TOWARD DAYBREAK. AREAS OF SMOKE THROUGH THE NIGHT. CHANCE
OF SPRINKLES AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
SUNDAY
SOUTHWEST WIND 5 TO 10 KNOTS. PATCHY SMOKE THROUGH THE
DAY. CHANCE OF SPRINKLES IN THE MORNING. SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
SUNDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
MONDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS LATE IN THE AFTERNOON. CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING, THEN SHOWERS
LIKELY AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO
2 FEET.
LSZ145-191000-
DULUTH MN TO PORT WING WI-
621 PM CDT SAT JUL 18 2026
REST OF TONIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS, THEN BECOMING EAST 5 KNOTS
AFTER MIDNIGHT BECOMING SOUTHWEST. PATCHY SMOKE EARLY IN THE
EVENING, THEN AREAS OF SMOKE IN THE LATE EVENING AND OVERNIGHT.
CHANCE OF SPRINKLES AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
SUNDAY
SOUTHWEST WIND 5 KNOTS. CHANCE OF SPRINKLES IN THE
MORNING. PATCHY SMOKE THROUGH THE DAY. WAVES 1 FOOT OR LESS.
SUNDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
MONDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS LATE IN THE AFTERNOON. CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING, THEN SHOWERS
LIKELY AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO
2 FEET.
LSZ146-191000-
PORT WING TO SAND ISLAND WI-
621 PM CDT SAT JUL 18 2026
REST OF TONIGHT
SOUTH WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS. AREAS OF SMOKE THROUGH THE
NIGHT. CHANCE OF SPRINKLES TOWARD DAYBREAK. WAVES 1 FOOT OR LESS.
SUNDAY
SOUTHWEST WIND 5 KNOTS. CHANCE OF SPRINKLES IN THE
MORNING. AREAS OF SMOKE THROUGH THE DAY. WAVES 1 FOOT OR LESS.
SUNDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 FOOT
OR LESS.
MONDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE AFTERNOON. CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING, THEN SHOWERS
LIKELY AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO
2 FEET.
LSZ147-191000-
SAND ISLAND TO BAYFIELD WI-
621 PM CDT SAT JUL 18 2026
REST OF TONIGHT
SOUTH WIND 5 KNOTS BECOMING SOUTHWEST TOWARD
DAYBREAK. SMOKE IN THE EVENING, THEN AREAS OF SMOKE AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
SUNDAY
SOUTHWEST WIND 5 KNOTS. AREAS OF SMOKE. WAVES 1 FOOT OR
LESS.
SUNDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. PATCHY SMOKE IN THE
EVENING. SLIGHT CHANCE OF SHOWERS IN THE EVENING. SLIGHT CHANCE
OF THUNDERSTORMS THROUGH THE NIGHT. CHANCE OF SHOWERS AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
MONDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE AFTERNOON. CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING, THEN SHOWERS
LIKELY AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO
2 FEET.
LSZ150-191000-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
621 PM CDT SAT JUL 18 2026
REST OF TONIGHT
SOUTH WIND 5 KNOTS. SMOKE. WAVES 1 FOOT OR
LESS.
SUNDAY
SOUTH WIND 5 KNOTS. AREAS OF SMOKE. WAVES 1 FOOT OR
LESS.
SUNDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS. PATCHY SMOKE IN THE EVENING. SLIGHT CHANCE OF
SHOWERS IN THE EVENING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE NIGHT. CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
MONDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE LATE MORNING AND AFTERNOON. SLIGHT
CHANCE OF THUNDERSTORMS IN THE MORNING. CHANCE OF SHOWERS THROUGH
THE DAY. CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO
2 FEET.
LSZ121-191000-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
621 PM CDT SAT JUL 18 2026
REST OF TONIGHT
EAST WIND 5 KNOTS BECOMING SOUTH AFTER
MIDNIGHT. SMOKE UNTIL EARLY MORNING, THEN AREAS OF SMOKE TOWARD
DAYBREAK. WAVES 1 FOOT OR LESS.
SUNDAY
SOUTHWEST WIND 5 KNOTS. AREAS OF SMOKE. WAVES 1 FOOT OR
LESS.
SUNDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE MORNING. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
MONDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE LATE MORNING AND AFTERNOON. CHANCE
OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING,
THEN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
WAVES 1 TO 2 FEET.
LSZ148-191000-
OAK POINT TO SAXON HARBOR WI-
621 PM CDT SAT JUL 18 2026
REST OF TONIGHT
SOUTHEAST WIND 5 KNOTS BECOMING SOUTH AFTER
MIDNIGHT. SMOKE UNTIL EARLY MORNING, THEN AREAS OF SMOKE TOWARD
DAYBREAK. WAVES 1 FOOT OR LESS.
SUNDAY
SOUTHWEST WIND 5 KNOTS. AREAS OF SMOKE. WAVES 1 FOOT OR
LESS.
SUNDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS AFTER MIDNIGHT. PATCHY SMOKE IN THE EVENING. CHANCE OF
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
MONDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE LATE MORNING AND AFTERNOON. CHANCE
OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING,
THEN SHOWERS AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES
1 TO 2 FEET.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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