988
FZUS53 KDLH 201835
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
135 PM CDT MON JUL 20 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.
LSZ140-202200-
GRAND PORTAGE TO GRAND MARAIS MN-
135 PM CDT MON JUL 20 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT TUESDAY
REST OF TODAY
SOUTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO
AROUND 30 KNOTS. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS EARLY
IN THE AFTERNOON, THEN CHANCE OF SHOWERS AND THUNDERSTORMS LATE.
WAVES 4 TO 7 FEET. WAVES OCCASIONALLY TO 9 FEET.
TONIGHT
WEST WIND 10 TO 15 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 RAIN SHOWERS
THROUGH THE NIGHT. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET
AFTER MIDNIGHT.
TUESDAY
NORTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. MOSTLY SUNNY. WAVES 2 TO 4 FEET.
TUESDAY NIGHT
NORTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS DECREASING TO 20 KNOTS IN THE LATE EVENING AND
OVERNIGHT. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
LSZ141-202200-
GRAND MARAIS TO TACONITE HARBOR MN-
135 PM CDT MON JUL 20 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT TUESDAY
REST OF TODAY
SOUTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS. SLIGHT CHANCE OF RAIN SHOWERS EARLY IN THE
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE DAY. CHANCE
OF RAIN SHOWERS LATE. WAVES 2 TO 4 FEET.
TONIGHT
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 30 KNOTS
BECOMING WEST 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS AFTER
MIDNIGHT. SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE NIGHT.
SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES 1 TO 3 FEET
SUBSIDING TO 1 TO 2 FEET IN THE LATE EVENING AND OVERNIGHT.
TUESDAY
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS. PARTLY SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO
25 KNOTS EARLY IN THE EVENING. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
LSZ142-202200-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
135 PM CDT MON JUL 20 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT TUESDAY
REST OF TODAY
SOUTH WIND 10 TO 15 KNOTS BECOMING WEST LATE.
GUSTS UP TO 25 KNOTS. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
LATE. WAVES 1 TO 3 FEET.
TONIGHT
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
EASING TO 5 TO 10 KNOTS WITH GUSTS TO AROUND 25 KNOTS AFTER
MIDNIGHT. SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES
1 TO 2 FEET.
TUESDAY
NORTHWEST WIND 10 TO 15 KNOTS BECOMING NORTH 5 TO
10 KNOTS LATE IN THE AFTERNOON. GUSTS UP TO 25 KNOTS. MOSTLY
SUNNY. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
LSZ143-202200-
SILVER BAY HARBOR TO TWO HARBORS MN-
135 PM CDT MON JUL 20 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT TUESDAY
REST OF TODAY
SOUTHWEST WIND 10 TO 15 KNOTS BECOMING WEST
LATE. GUSTS UP TO 25 KNOTS. SUNNY. WAVES 1 TO 3 FEET.
TONIGHT
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
EASING TO 5 TO 10 KNOTS WITH GUSTS TO AROUND 25 KNOTS AFTER
MIDNIGHT. SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES 1 TO
2 FEET.
TUESDAY
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING NORTH 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR
LESS.
TUESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
LSZ144-202200-
TWO HARBORS TO DULUTH MN-
135 PM CDT MON JUL 20 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT TUESDAY
REST OF TODAY
SOUTHWEST WIND 10 TO 15 KNOTS BECOMING WEST 5 TO
15 KNOTS LATE. GUSTS UP TO 25 KNOTS. SUNNY. WAVES 1 TO 3 FEET.
TONIGHT
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS LATE IN THE EVENING, THEN INCREASING TO
25 KNOTS AFTER MIDNIGHT INCREASING TO 30 KNOTS EARLY IN THE
MORNING. SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES 1 TO
3 FEET.
TUESDAY
NORTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS LATE IN THE AFTERNOON. PARTLY SUNNY. WAVES
1 TO 2 FEET.
TUESDAY NIGHT
NORTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHWEST 5 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR.
WAVES 1 FOOT OR LESS.
LSZ145-202200-
DULUTH MN TO PORT WING WI-
135 PM CDT MON JUL 20 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT TUESDAY
REST OF TODAY
SOUTHWEST WIND 10 TO 15 KNOTS BECOMING WEST 5 TO
15 KNOTS LATE. GUSTS UP TO 25 KNOTS. SUNNY. WAVES 1 TO 3 FEET.
TONIGHT
NORTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS LATE IN THE EVENING, THEN INCREASING TO
25 KNOTS AFTER MIDNIGHT. SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
WAVES 1 TO 3 FEET.
TUESDAY
NORTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING NORTH 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS IN THE AFTERNOON. PARTLY SUNNY. WAVES 1 TO 3 FEET.
TUESDAY NIGHT
NORTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHWEST 5 KNOTS EARLY IN THE MORNING. MOSTLY
CLEAR. WAVES 1 TO 2 FEET.
LSZ146-202200-
PORT WING TO SAND ISLAND WI-
135 PM CDT MON JUL 20 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT TUESDAY
REST OF TODAY
SOUTHWEST WIND 5 TO 15 KNOTS WITH GUSTS TO
AROUND 25 KNOTS BECOMING WEST 10 TO 15 KNOTS WITH GUSTS TO AROUND
30 KNOTS LATE. SUNNY. WAVES 1 TO 3 FEET.
TONIGHT
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 30 KNOTS
DECREASING TO 20 KNOTS IN THE LATE EVENING AND OVERNIGHT. CHANCE
OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.
WAVES 1 TO 3 FEET.
TUESDAY
NORTHWEST WIND 10 TO 15 KNOTS BECOMING NORTH IN THE
AFTERNOON. GUSTS UP TO 20 KNOTS. PARTLY SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
NORTH WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHWEST EARLY IN THE MORNING. MOSTLY CLEAR.
WAVES 1 FOOT OR LESS.
LSZ147-202200-
SAND ISLAND TO BAYFIELD WI-
135 PM CDT MON JUL 20 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT TUESDAY
REST OF TODAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 25 KNOTS BECOMING WEST WITH GUSTS TO AROUND 30 KNOTS LATE.
SUNNY. WAVES 1 TO 3 FEET.
TONIGHT
NORTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 30 KNOTS
DECREASING TO 20 KNOTS LATE IN THE EVENING, THEN INCREASING TO
25 KNOTS AFTER MIDNIGHT. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
TUESDAY
NORTHWEST WIND 10 TO 15 KNOTS BECOMING NORTH LATE IN
THE AFTERNOON. GUSTS UP TO 25 KNOTS. MOSTLY SUNNY. WAVES 1 TO
2 FEET.
TUESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO
AROUND 20 KNOTS EASING TO 5 KNOTS EARLY IN THE MORNING. MOSTLY
CLEAR. WAVES 1 TO 2 FEET.
LSZ150-202200-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
135 PM CDT MON JUL 20 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT TUESDAY
REST OF TODAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 30 KNOTS. SUNNY. WAVES 2 TO 4 FEET.
TONIGHT
NORTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 30 KNOTS
DECREASING TO 20 KNOTS LATE IN THE EVENING, THEN INCREASING TO
25 KNOTS AFTER MIDNIGHT. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
TUESDAY
NORTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. MOSTLY SUNNY. WAVES 1 TO 3 FEET.
TUESDAY NIGHT
NORTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
LSZ121-202200-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
135 PM CDT MON JUL 20 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT TUESDAY
REST OF TODAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 25 KNOTS BECOMING WEST WITH GUSTS TO AROUND 30 KNOTS LATE.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE. WAVES 1 TO
2 FEET.
TONIGHT
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
30 KNOTS BECOMING WEST 5 TO 10 KNOTS WITH GUSTS TO AROUND
25 KNOTS AFTER MIDNIGHT. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
NORTHWEST WIND 10 TO 15 KNOTS BECOMING NORTH LATE IN
THE AFTERNOON. GUSTS UP TO 25 KNOTS. MOSTLY SUNNY. WAVES 1 TO
2 FEET.
TUESDAY NIGHT
NORTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHWEST 5 KNOTS AFTER MIDNIGHT. PARTLY
CLOUDY. WAVES 1 FOOT OR LESS.
LSZ148-202200-
OAK POINT TO SAXON HARBOR WI-
135 PM CDT MON JUL 20 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT TUESDAY
REST OF TODAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 25 KNOTS BECOMING WEST WITH GUSTS TO AROUND 30 KNOTS LATE.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE. WAVES 1 TO
2 FEET.
TONIGHT
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 30 KNOTS
DECREASING TO 20 KNOTS LATE IN THE EVENING, THEN INCREASING TO
25 KNOTS AFTER MIDNIGHT. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
NORTHWEST WIND 15 TO 20 KNOTS BECOMING NORTH 10 TO
15 KNOTS LATE IN THE AFTERNOON. GUSTS UP TO 25 KNOTS. PARTLY
SUNNY. WAVES 1 TO 3 FEET.
TUESDAY NIGHT
NORTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING NORTHWEST 5 TO 10 KNOTS EARLY IN THE MORNING.
PARTLY CLOUDY. WAVES 1 TO 2 FEET.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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