342
FZUS53 KDLH 270802
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
302 AM CDT MON JUL 27 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.
LSZ140-271600-
GRAND PORTAGE TO GRAND MARAIS MN-
302 AM CDT MON JUL 27 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING
...SEVERE THUNDERSTORM WATCH 518 IN EFFECT UNTIL 9 AM CDT THIS
MORNING...
TODAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
UNTIL LATE AFTERNOON. AREAS OF DENSE FOG EARLY IN THE MORNING.
PATCHY FOG IN THE LATE MORNING AND EARLY AFTERNOON. SLIGHT CHANCE
OF THUNDERSTORMS EARLY IN THE MORNING. CHANCE OF RAIN SHOWERS
UNTIL LATE AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS IN THE LATE
MORNING AND EARLY AFTERNOON. WAVES 1 TO 3 FEET SUBSIDING TO 1 TO
2 FEET LATE IN THE AFTERNOON.
TONIGHT
NORTHWEST WIND 5 KNOTS BECOMING NORTH EARLY IN THE
MORNING. MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
TUESDAY
NORTHEAST WIND 5 KNOTS BECOMING SOUTH IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
SOUTHWEST WIND 5 KNOTS. MOSTLY CLOUDY. WAVES
1 FOOT OR LESS.
LSZ141-271600-
GRAND MARAIS TO TACONITE HARBOR MN-
302 AM CDT MON JUL 27 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING
...SEVERE THUNDERSTORM WATCH 518 IN EFFECT UNTIL 9 AM CDT THIS
MORNING...
TODAY
NORTHEAST WIND 5 TO 10 KNOTS. WIDESPREAD DENSE FOG EARLY
IN THE MORNING. PATCHY FOG IN THE LATE MORNING AND EARLY
AFTERNOON. CHANCE OF THUNDERSTORMS IN THE MORNING. CHANCE OF RAIN
SHOWERS THROUGH THE DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS. MOSTLY CLOUDY. WAVES
1 FOOT OR LESS.
TUESDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHEAST
5 KNOTS EARLY IN THE AFTERNOON, THEN BECOMING VARIABLE 10 KNOTS
OR LESS LATE IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
VARIABLE WINDS 10 KNOTS OR LESS. MOSTLY CLOUDY.
WAVES 1 FOOT OR LESS.
LSZ142-271600-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
302 AM CDT MON JUL 27 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING
...SEVERE THUNDERSTORM WATCH 518 IN EFFECT UNTIL 9 AM CDT THIS
MORNING...
TODAY
NORTHEAST WIND 5 KNOTS UNTIL LATE AFTERNOON BECOMING
VARIABLE 10 KNOTS OR LESS. WIDESPREAD DENSE FOG EARLY IN THE
MORNING. PATCHY FOG IN THE LATE MORNING AND AFTERNOON. CHANCE OF
THUNDERSTORMS IN THE MORNING. CHANCE OF RAIN SHOWERS THROUGH THE
DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO
2 FEET.
TONIGHT
VARIABLE WINDS 10 KNOTS OR LESS. PATCHY FOG. WAVES
1 TO 2 FEET.
TUESDAY
VARIABLE WINDS 10 KNOTS OR LESS. PATCHY FOG IN THE
MORNING. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
VARIABLE WINDS 10 KNOTS OR LESS. MOSTLY CLOUDY.
WAVES 1 FOOT OR LESS.
LSZ143-271600-
SILVER BAY HARBOR TO TWO HARBORS MN-
302 AM CDT MON JUL 27 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING
...SEVERE THUNDERSTORM WATCH 518 IN EFFECT UNTIL 9 AM CDT THIS
MORNING...
TODAY
NORTHEAST WIND 5 TO 10 KNOTS. WIDESPREAD DENSE FOG EARLY
IN THE MORNING. PATCHY FOG IN THE LATE MORNING AND AFTERNOON.
CHANCE OF THUNDERSTORMS IN THE MORNING. CHANCE OF RAIN SHOWERS
THROUGH THE DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. PATCHY FOG. WAVES 1 FOOT OR LESS.
TUESDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING EAST 5 KNOTS
IN THE AFTERNOON. PATCHY FOG IN THE MORNING. SLIGHT CHANCE OF
RAIN SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS UNTIL EARLY MORNING
BECOMING VARIABLE 10 KNOTS OR LESS. MOSTLY CLOUDY. WAVES 1 FOOT
OR LESS.
LSZ144-271600-
TWO HARBORS TO DULUTH MN-
302 AM CDT MON JUL 27 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING
...SEVERE THUNDERSTORM WATCH 518 IN EFFECT UNTIL 9 AM CDT THIS
MORNING...
TODAY
NORTHEAST WIND 5 TO 10 KNOTS. AREAS OF DENSE FOG EARLY
IN THE MORNING. PATCHY FOG IN THE LATE MORNING AND AFTERNOON.
CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE MORNING. SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO
2 FEET.
TONIGHT
NORTHEAST WIND 5 KNOTS IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. PATCHY FOG. WAVES 1 FOOT OR LESS.
TUESDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING EAST 5 KNOTS
IN THE LATE MORNING AND AFTERNOON. PATCHY FOG IN THE MORNING.
WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS UNTIL EARLY MORNING
BECOMING VARIABLE 10 KNOTS OR LESS. PARTLY CLOUDY. WAVES 1 FOOT
OR LESS.
LSZ145-271600-
DULUTH MN TO PORT WING WI-
302 AM CDT MON JUL 27 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING
...SEVERE THUNDERSTORM WATCH 518 IN EFFECT UNTIL 9 AM CDT THIS
MORNING...
TODAY
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY FOG UNTIL LATE
AFTERNOON. CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE
MORNING. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE
AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. PATCHY FOG AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
TUESDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING NORTHEAST
5 KNOTS IN THE LATE MORNING AND AFTERNOON. PATCHY FOG IN THE
MORNING. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS UNTIL EARLY MORNING
BECOMING VARIABLE 10 KNOTS OR LESS. PARTLY CLOUDY. WAVES 1 FOOT
OR LESS.
LSZ146-271600-
PORT WING TO SAND ISLAND WI-
302 AM CDT MON JUL 27 2026
...SEVERE THUNDERSTORM WATCH 518 IN EFFECT UNTIL 9 AM CDT THIS
MORNING...
TODAY
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY FOG UNTIL LATE
AFTERNOON. CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE
MORNING. SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES
1 TO 2 FEET.
TONIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. PATCHY FOG AFTER MIDNIGHT. WAVES 1 TO
2 FEET.
TUESDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING NORTHEAST
5 KNOTS IN THE AFTERNOON. PATCHY FOG IN THE MORNING. WAVES 1 FOOT
OR LESS.
TUESDAY NIGHT
EAST WIND 5 KNOTS IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
LSZ147-271600-
SAND ISLAND TO BAYFIELD WI-
302 AM CDT MON JUL 27 2026
...SEVERE THUNDERSTORM WATCH 518 IN EFFECT UNTIL 9 AM CDT THIS
MORNING...
TODAY
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY SMOKE EARLY IN THE
MORNING. PATCHY FOG UNTIL LATE AFTERNOON. CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE MORNING. SLIGHT CHANCE OF
THUNDERSTORMS IN THE LATE MORNING AND EARLY AFTERNOON. SLIGHT
CHANCE OF RAIN SHOWERS IN THE LATE MORNING AND AFTERNOON. WAVES
1 TO 2 FEET.
TONIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. PATCHY FOG AFTER MIDNIGHT. WAVES 1 TO
2 FEET.
TUESDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING EAST 5 KNOTS
IN THE AFTERNOON. PATCHY FOG IN THE MORNING. WAVES 1 FOOT OR
LESS.
TUESDAY NIGHT
EAST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
LSZ150-271600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
302 AM CDT MON JUL 27 2026
...SEVERE THUNDERSTORM WATCH 518 IN EFFECT UNTIL 9 AM CDT THIS
MORNING...
TODAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE MORNING AND EARLY AFTERNOON. PATCHY SMOKE EARLY IN THE
MORNING. PATCHY FOG THROUGH THE DAY. CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE MORNING. SLIGHT CHANCE OF
THUNDERSTORMS IN THE LATE MORNING AND EARLY AFTERNOON. SLIGHT
CHANCE OF RAIN SHOWERS IN THE LATE MORNING AND AFTERNOON. WAVES
1 TO 2 FEET.
TONIGHT
NORTH WIND 5 KNOTS UNTIL EARLY MORNING BECOMING
VARIABLE 10 KNOTS OR LESS. PATCHY FOG. WAVES 1 TO 2 FEET.
TUESDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING EAST 5 KNOTS
IN THE AFTERNOON. PATCHY FOG IN THE MORNING. WAVES 1 FOOT OR
LESS.
TUESDAY NIGHT
EAST WIND 5 KNOTS UNTIL EARLY MORNING BECOMING
VARIABLE 10 KNOTS OR LESS. MOSTLY CLOUDY IN THE EVENING THEN
BECOMING PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
LSZ121-271600-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
302 AM CDT MON JUL 27 2026
...SEVERE THUNDERSTORM WATCH 518 IN EFFECT UNTIL 9 AM CDT THIS
MORNING...
TODAY
EAST WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE MORNING
AND AFTERNOON. PATCHY FOG EARLY IN THE MORNING. CHANCE OF SHOWERS
AND THUNDERSTORMS EARLY IN THE MORNING. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. PATCHY FOG AFTER MIDNIGHT. WAVES 1 TO
2 FEET.
TUESDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING EAST 5 KNOTS
IN THE AFTERNOON. PATCHY FOG IN THE MORNING. WAVES 1 FOOT OR
LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS. PARTLY CLOUDY. WAVES 1 FOOT
OR LESS.
LSZ148-271600-
OAK POINT TO SAXON HARBOR WI-
302 AM CDT MON JUL 27 2026
...SEVERE THUNDERSTORM WATCH 518 IN EFFECT UNTIL 9 AM CDT THIS
MORNING...
TODAY
EAST WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE MORNING
AND AFTERNOON. PATCHY FOG EARLY IN THE MORNING. PATCHY SMOKE IN
THE MORNING. PATCHY FOG IN THE AFTERNOON. CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE MORNING. SLIGHT CHANCE OF
THUNDERSTORMS EARLY IN THE AFTERNOON. SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. PATCHY FOG THROUGH THE NIGHT. WAVES
1 TO 2 FEET.
TUESDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING NORTHEAST
5 KNOTS IN THE AFTERNOON. PATCHY DENSE FOG IN THE MORNING. WAVES
1 FOOT OR LESS.
TUESDAY NIGHT
EAST WIND 5 KNOTS BECOMING SOUTH EARLY IN THE
MORNING. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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