309
FZUS53 KDLH 181057
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
557 AM 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.
LSZ140-181600-
GRAND PORTAGE TO GRAND MARAIS MN-
557 AM CDT SAT JUL 18 2026
TODAY
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTHWEST 5 TO 10 KNOTS IN THE AFTERNOON. SMOKE
IN THE MORNING, THEN AREAS OF SMOKE IN THE AFTERNOON. WAVES 1 TO
2 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. PATCHY SMOKE. WAVES
1 FOOT OR LESS.
SUNDAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. AREAS OF SMOKE IN THE MORNING, THEN PATCHY 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 RAIN SHOWERS IN THE EVENING. SLIGHT CHANCE OF
THUNDERSTORMS THROUGH THE NIGHT. RAIN SHOWERS LIKELY AFTER
MIDNIGHT. WAVES 1 TO 2 FEET.
LSZ141-181600-
GRAND MARAIS TO TACONITE HARBOR MN-
557 AM CDT SAT JUL 18 2026
TODAY
NORTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTHWEST IN THE AFTERNOON. PATCHY SMOKE. WAVES
1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. PATCHY SMOKE. WAVES 1 FOOT OR LESS.
SUNDAY
SOUTH WIND 5 KNOTS. PATCHY SMOKE. 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 TO
10 KNOTS AFTER MIDNIGHT. PATCHY SMOKE IN THE EVENING. RAIN
SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS.
LSZ142-181600-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
557 AM CDT SAT JUL 18 2026
TODAY
NORTH WIND 5 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE
MORNING BECOMING VARIABLE 10 KNOTS OR LESS. PATCHY SMOKE THROUGH
THE DAY. WAVES 1 FOOT OR LESS.
TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS. PATCHY SMOKE. WAVES
1 FOOT OR LESS.
SUNDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTH 5 KNOTS
IN THE LATE MORNING AND AFTERNOON. PATCHY SMOKE. WAVES 1 FOOT OR
LESS.
SUNDAY NIGHT
VARIABLE WINDS 10 KNOTS OR LESS BECOMING
SOUTHWEST 5 KNOTS IN THE LATE EVENING AND OVERNIGHT. PATCHY SMOKE
IN THE EVENING. RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
LSZ143-181600-
SILVER BAY HARBOR TO TWO HARBORS MN-
557 AM CDT SAT JUL 18 2026
TODAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTH EARLY IN THE
AFTERNOON, THEN BECOMING VARIABLE 10 KNOTS OR LESS LATE IN THE
AFTERNOON. PATCHY SMOKE IN THE LATE MORNING AND AFTERNOON. WAVES
1 FOOT OR LESS.
TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS. PATCHY SMOKE. WAVES
1 FOOT OR LESS.
SUNDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST
5 KNOTS IN THE LATE MORNING AND AFTERNOON. PATCHY SMOKE. WAVES
1 FOOT OR LESS.
SUNDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE MORNING. PATCHY SMOKE IN THE EVENING.
SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.
WAVES 1 TO 2 FEET.
LSZ144-181600-
TWO HARBORS TO DULUTH MN-
557 AM CDT SAT JUL 18 2026
TODAY
NORTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING EAST IN THE AFTERNOON. PATCHY SMOKE IN THE LATE
MORNING AND AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. PATCHY SMOKE. WAVES 1 FOOT OR LESS.
SUNDAY
SOUTHWEST WIND 5 KNOTS. PATCHY SMOKE. WAVES 1 FOOT OR
LESS.
SUNDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS. SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
LSZ145-181600-
DULUTH MN TO PORT WING WI-
557 AM CDT SAT JUL 18 2026
TODAY
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING EAST 5 KNOTS IN THE AFTERNOON. PATCHY SMOKE IN
THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING SOUTHEAST 5 KNOTS AFTER
MIDNIGHT BECOMING SOUTHWEST. PATCHY SMOKE. WAVES 1 FOOT OR LESS.
SUNDAY
SOUTHWEST WIND 5 KNOTS. PATCHY SMOKE THROUGH THE DAY.
WAVES 1 FOOT OR LESS.
SUNDAY NIGHT
SOUTHWEST WIND 15 TO 20 KNOTS. SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
LSZ146-181600-
PORT WING TO SAND ISLAND WI-
557 AM CDT SAT JUL 18 2026
TODAY
WEST WIND 5 KNOTS BECOMING SOUTHEAST EARLY IN THE
AFTERNOON, THEN BECOMING VARIABLE 10 KNOTS OR LESS LATE IN THE
AFTERNOON. PATCHY SMOKE IN THE LATE MORNING AND AFTERNOON. WAVES
1 FOOT OR LESS.
TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS. PATCHY SMOKE. WAVES
1 FOOT OR LESS.
SUNDAY
SOUTHWEST WIND 5 KNOTS. PATCHY SMOKE. WAVES 1 FOOT OR
LESS.
SUNDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS AFTER MIDNIGHT. SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
LSZ147-181600-
SAND ISLAND TO BAYFIELD WI-
557 AM CDT SAT JUL 18 2026
TODAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTHEAST IN THE
AFTERNOON. PATCHY SMOKE THROUGH THE DAY. WAVES 1 FOOT OR LESS.
TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST
5 KNOTS EARLY IN THE MORNING. PATCHY SMOKE. 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. PATCHY SMOKE IN THE EVENING.
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
LSZ150-181600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
557 AM CDT SAT JUL 18 2026
TODAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST EARLY IN
THE AFTERNOON, THEN BECOMING SOUTH LATE IN THE AFTERNOON. PATCHY
SMOKE THROUGH THE DAY. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTH WIND 5 KNOTS BECOMING SOUTHWEST EARLY IN THE
MORNING. PATCHY SMOKE IN THE EVENING, THEN AREAS OF SMOKE AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
SUNDAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH LATE IN THE
AFTERNOON. AREAS OF SMOKE. WAVES 1 FOOT OR LESS.
SUNDAY NIGHT
SOUTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. AREAS OF SMOKE IN THE EVENING. CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
LSZ121-181600-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
557 AM CDT SAT JUL 18 2026
TODAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING EAST IN THE
AFTERNOON. PATCHY SMOKE IN THE LATE MORNING AND AFTERNOON. WAVES
1 FOOT OR LESS.
TONIGHT
EAST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING SOUTHWEST 5 KNOTS AFTER
MIDNIGHT. AREAS OF SMOKE. WAVES 1 FOOT OR LESS.
SUNDAY
SOUTHWEST 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. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
LSZ148-181600-
OAK POINT TO SAXON HARBOR WI-
557 AM CDT SAT JUL 18 2026
TODAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING EAST LATE IN THE
AFTERNOON. PATCHY SMOKE IN THE LATE MORNING AND AFTERNOON. WAVES
1 FOOT OR LESS.
TONIGHT
EAST WIND 5 KNOTS BECOMING SOUTHWEST AFTER MIDNIGHT.
AREAS OF SMOKE IN THE EVENING, THEN SMOKE AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
SUNDAY
SOUTHWEST WIND 5 KNOTS. SMOKE IN THE MORNING, THEN
AREAS OF SMOKE IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
SUNDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS. AREAS OF SMOKE IN THE EVENING. CHANCE OF SHOWERS
AND 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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