973
FZUS53 KDLH 191109
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
608 AM CDT SUN JUL 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.
LSZ140-191600-
GRAND PORTAGE TO GRAND MARAIS MN-
608 AM CDT SUN JUL 19 2026
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE AFTERNOON. AREAS OF SMOKE UNTIL LATE AFTERNOON, THEN PATCHY
SMOKE LATE IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS LATE IN THE AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS RISING TO 10 TO 15 KNOTS
WITH GUSTS TO AROUND 20 KNOTS AFTER MIDNIGHT. CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES 1 TO 2 FEET.
MONDAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
INCREASING TO 30 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON,
THEN DECREASING TO 25 KNOTS 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 4 TO 6 FEET. WAVES OCCASIONALLY TO 7 FEET. A SMALL CRAFT
ADVISORY MAY BE NEEDED.
MONDAY NIGHT
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHWEST WITH GUSTS TO AROUND 25 KNOTS EARLY
IN THE MORNING. CHANCE OF THUNDERSTORMS IN THE EVENING. CHANCE OF
RAIN SHOWERS THROUGH THE NIGHT. WAVES 2 TO 4 FEET SUBSIDING TO
1 TO 2 FEET AFTER MIDNIGHT. A SMALL CRAFT ADVISORY MAY BE NEEDED.
LSZ141-191600-
GRAND MARAIS TO TACONITE HARBOR MN-
608 AM CDT SUN JUL 19 2026
TODAY
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST IN THE LATE
MORNING AND EARLY AFTERNOON, THEN BECOMING SOUTH LATE IN THE
AFTERNOON. AREAS OF SMOKE EARLY IN THE MORNING, THEN PATCHY SMOKE
IN THE LATE MORNING AND AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS
EARLY IN THE AFTERNOON. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS LATE IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHEAST WIND 5 KNOTS BECOMING NORTHEAST LATE IN THE
EVENING, THEN BECOMING NORTHWEST AFTER MIDNIGHT BECOMING
SOUTHWEST EARLY IN THE MORNING. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN RAIN SHOWERS LIKELY 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 EARLY AFTERNOON,
THEN DECREASING TO 20 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 BUILDING TO 1 TO 3 FEET IN THE AFTERNOON.
MONDAY NIGHT
NORTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS EARLY IN THE MORNING. CHANCE OF
THUNDERSTORMS IN THE EVENING. CHANCE OF RAIN SHOWERS THROUGH THE
NIGHT. WAVES 1 TO 2 FEET.
LSZ142-191600-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
608 AM CDT SUN JUL 19 2026
TODAY
EAST WIND 5 KNOTS BECOMING NORTHWEST LATE IN THE
MORNING, THEN BECOMING SOUTHWEST IN THE AFTERNOON. PATCHY SMOKE
THROUGH THE DAY. SLIGHT CHANCE OF RAIN SHOWERS IN THE LATE
MORNING AND AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTH WIND 5 KNOTS BECOMING NORTHEAST LATE IN THE
EVENING, THEN BECOMING SOUTHWEST AFTER MIDNIGHT. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 FOOT OR LESS.
MONDAY
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON,
THEN DECREASING TO 20 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.
MONDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS EARLY IN THE MORNING. CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING. WAVES 1 TO 2 FEET.
LSZ143-191600-
SILVER BAY HARBOR TO TWO HARBORS MN-
608 AM CDT SUN JUL 19 2026
TODAY
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST IN THE LATE
MORNING AND AFTERNOON. PATCHY SMOKE IN THE MORNING. SLIGHT CHANCE
OF RAIN SHOWERS THROUGH THE DAY. SLIGHT CHANCE OF THUNDERSTORMS
LATE IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 5 KNOTS BECOMING NORTHWEST LATE IN THE
EVENING, THEN BECOMING SOUTHWEST 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS AFTER MIDNIGHT. SLIGHT CHANCE OF RAIN SHOWERS IN
THE EVENING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE NIGHT.
CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
MONDAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS. 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.
MONDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. SLIGHT
CHANCE OF SHOWERS THROUGH THE NIGHT. WAVES 1 TO 2 FEET.
LSZ144-191600-
TWO HARBORS TO DULUTH MN-
608 AM CDT SUN JUL 19 2026
TODAY
SOUTHWEST WIND 5 KNOTS. SLIGHT CHANCE OF RAIN SHOWERS IN
THE LATE MORNING AND EARLY AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS AFTER
MIDNIGHT. WAVES 1 TO 2 FEET.
MONDAY
SOUTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FEET.
MONDAY NIGHT
NORTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
25 KNOTS DECREASING TO 20 KNOTS AFTER MIDNIGHT, THEN INCREASING
TO 25 KNOTS EARLY IN THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING. SLIGHT CHANCE OF SHOWERS THROUGH THE NIGHT. WAVES
1 TO 2 FEET.
LSZ145-191600-
DULUTH MN TO PORT WING WI-
608 AM CDT SUN JUL 19 2026
TODAY
SOUTHWEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF SHOWERS
EARLY IN THE MORNING. PATCHY SMOKE IN THE MORNING. WAVES 1 FOOT
OR LESS.
TONIGHT
SOUTHWEST WIND 5 KNOTS RISING TO 15 TO 20 KNOTS WITH
GUSTS TO AROUND 25 KNOTS IN THE LATE EVENING AND OVERNIGHT.
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO
2 FEET.
MONDAY
SOUTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FEET.
MONDAY NIGHT
WEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS IN THE LATE EVENING AND EARLY MORNING,
THEN INCREASING TO 25 KNOTS EARLY IN THE MORNING. SLIGHT CHANCE
OF THUNDERSTORMS IN THE EVENING. SLIGHT CHANCE OF SHOWERS THROUGH
THE NIGHT. WAVES 1 TO 3 FEET.
LSZ146-191600-
PORT WING TO SAND ISLAND WI-
608 AM CDT SUN JUL 19 2026
TODAY
SOUTHWEST WIND 5 KNOTS. SLIGHT CHANCE OF RAIN SHOWERS IN
THE MORNING. PATCHY SMOKE UNTIL LATE AFTERNOON. WAVES 1 FOOT OR
LESS.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
AFTER MIDNIGHT. 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
3 FEET.
MONDAY NIGHT
WEST WIND 10 TO 15 KNOTS EASING TO 5 TO 10 KNOTS
AFTER MIDNIGHT. GUSTS UP TO 20 KNOTS. SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING. SLIGHT CHANCE OF SHOWERS THROUGH
THE NIGHT. WAVES 1 TO 2 FEET.
LSZ147-191600-
SAND ISLAND TO BAYFIELD WI-
608 AM CDT SUN JUL 19 2026
TODAY
SOUTHWEST WIND 5 KNOTS. PATCHY SMOKE UNTIL LATE
AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS LATE IN THE MORNING.
WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
AFTER MIDNIGHT. 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 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.
MONDAY NIGHT
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.
WAVES 1 TO 2 FEET.
LSZ150-191600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
608 AM CDT SUN JUL 19 2026
TODAY
SOUTHWEST WIND 5 KNOTS. PATCHY SMOKE THROUGH THE DAY.
WAVES 1 FOOT OR LESS.
TONIGHT
SOUTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SLIGHT CHANCE OF SHOWERS IN THE EVENING. SLIGHT CHANCE
OF THUNDERSTORMS THROUGH THE NIGHT. CHANCE OF SHOWERS AFTER
MIDNIGHT. PATCHY SMOKE AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
MONDAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
INCREASING TO 30 KNOTS EARLY IN THE AFTERNOON, THEN DECREASING TO
25 KNOTS LATE IN THE 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 BUILDING TO
1 TO 3 FEET IN THE LATE MORNING AND EARLY AFTERNOON, THEN
SUBSIDING TO 1 TO 2 FEET LATE IN THE AFTERNOON.
MONDAY NIGHT
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS IN THE LATE EVENING AND OVERNIGHT. CHANCE
OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE NIGHT.
WAVES 1 TO 2 FEET.
LSZ121-191600-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
608 AM CDT SUN JUL 19 2026
TODAY
SOUTHWEST WIND 5 KNOTS. PATCHY SMOKE UNTIL LATE
AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. PATCHY SMOKE AFTER MIDNIGHT. CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 FOOT OR
LESS.
MONDAY
SOUTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING. CHANCE
OF SHOWERS THROUGH THE DAY. CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 TO 2 FEET.
MONDAY NIGHT
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS IN THE LATE EVENING AND OVERNIGHT. CHANCE
OF THUNDERSTORMS IN THE EVENING. CHANCE OF SHOWERS THROUGH THE
NIGHT. WAVES 1 TO 2 FEET.
LSZ148-191600-
OAK POINT TO SAXON HARBOR WI-
608 AM CDT SUN JUL 19 2026
TODAY
SOUTHWEST WIND 5 KNOTS. AREAS OF SMOKE IN THE MORNING,
THEN PATCHY SMOKE IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SLIGHT CHANCE OF SHOWERS IN THE EVENING. SLIGHT CHANCE
OF THUNDERSTORMS THROUGH THE NIGHT. CHANCE OF SHOWERS AFTER
MIDNIGHT. PATCHY SMOKE AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
MONDAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
INCREASING TO 30 KNOTS LATE IN THE MORNING, THEN DECREASING TO
25 KNOTS IN THE AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS IN THE
MORNING. CHANCE OF SHOWERS THROUGH THE DAY. CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 3 FEET.
MONDAY NIGHT
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS IN THE LATE EVENING AND OVERNIGHT. CHANCE
OF THUNDERSTORMS IN THE EVENING. CHANCE OF SHOWERS THROUGH THE
NIGHT. SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO
2 FEET.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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