397
FZUS53 KDLH 132201
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
501 PM CDT MON APR 13 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.
LSZ140-140400-
GRAND PORTAGE TO GRAND MARAIS MN-
501 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY MORNING...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
SLIGHT CHANCE OF RAIN IN THE EVENING. CHANCE OF RAIN AFTER
MIDNIGHT. PATCHY FOG IN THE LATE EVENING AND OVERNIGHT. WAVES
1 TO 2 FEET.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS IN THE LATE MORNING AND AFTERNOON. PATCHY
FOG THROUGH THE DAY. SLIGHT CHANCE OF RAIN IN THE MORNING. CHANCE
OF RAIN IN THE AFTERNOON. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING NORTH
AFTER MIDNIGHT. MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
WEDNESDAY
NORTHEAST WIND 5 KNOTS BECOMING EAST IN THE LATE
MORNING AND AFTERNOON. PARTLY SUNNY. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ141-140400-
GRAND MARAIS TO TACONITE HARBOR MN-
501 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY MORNING...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE EVENING AND OVERNIGHT. SLIGHT CHANCE OF RAIN IN THE
EVENING. CHANCE OF RAIN AFTER MIDNIGHT. PATCHY FOG IN THE LATE
EVENING AND OVERNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
UNTIL LATE AFTERNOON. PATCHY FOG THROUGH THE DAY. SLIGHT CHANCE
OF RAIN THROUGH THE DAY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING NORTH IN
THE LATE EVENING AND OVERNIGHT. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
WEDNESDAY
EAST WIND 5 KNOTS. PARTLY SUNNY. WAVES 1 FOOT OR
LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ142-140400-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
501 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
CHANCE OF RAIN EARLY IN THE EVENING, THEN SLIGHT CHANCE OF RAIN
LATE IN THE EVENING. CHANCE OF RAIN AFTER MIDNIGHT. PATCHY FOG IN
THE LATE EVENING AND OVERNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
PATCHY FOG THROUGH THE DAY. SLIGHT CHANCE OF RAIN THROUGH THE
DAY. WAVES 1 TO 3 FEET.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS BECOMING NORTH AFTER
MIDNIGHT. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES
1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ143-140400-
SILVER BAY HARBOR TO TWO HARBORS MN-
501 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
CHANCE OF RAIN. PATCHY FOG IN THE LATE EVENING AND OVERNIGHT.
WAVES 1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
PATCHY FOG THROUGH THE DAY. SLIGHT CHANCE OF RAIN THROUGH THE
DAY. WAVES 1 TO 3 FEET.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY.
WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES
1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ144-140400-
TWO HARBORS TO DULUTH MN-
501 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS AFTER MIDNIGHT. CHANCE OF RAIN UNTIL EARLY
MORNING. SLIGHT CHANCE OF RAIN LATE IN THE NIGHT. PATCHY FOG IN
THE LATE EVENING AND OVERNIGHT. WAVES 1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
PATCHY FOG THROUGH THE DAY. SLIGHT CHANCE OF RAIN THROUGH THE
DAY. WAVES 1 TO 3 FEET.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY.
WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY IN THE
MORNING THEN BECOMING MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ145-140400-
DULUTH MN TO PORT WING WI-
501 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. CHANCE OF RAIN UNTIL EARLY MORNING. SLIGHT CHANCE OF
RAIN LATE IN THE NIGHT. PATCHY FOG IN THE LATE EVENING AND
OVERNIGHT. WAVES 1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE MORNING. PATCHY FOG THROUGH THE DAY. SLIGHT CHANCE
OF RAIN THROUGH THE DAY. WAVES 1 TO 3 FEET.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY.
WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHEAST WIND 10 TO 15 KNOTS. MOSTLY CLOUDY IN THE
MORNING THEN BECOMING MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ146-140400-
PORT WING TO SAND ISLAND WI-
501 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. CHANCE OF RAIN UNTIL EARLY MORNING. SLIGHT CHANCE OF
RAIN LATE IN THE NIGHT. PATCHY FOG IN THE LATE EVENING AND
OVERNIGHT. WAVES 1 TO 2 FEET BUILDING TO 1 TO 3 FEET AFTER
MIDNIGHT.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE MORNING. PATCHY FOG THROUGH THE DAY. SLIGHT CHANCE
OF RAIN IN THE AFTERNOON. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO
3 FEET IN THE AFTERNOON.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY.
WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY IN THE
MORNING THEN BECOMING MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ147-140400-
SAND ISLAND TO BAYFIELD WI-
501 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE EVENING AND OVERNIGHT. CHANCE OF RAIN THROUGH THE NIGHT.
PATCHY FOG IN THE LATE EVENING AND OVERNIGHT. WAVES 1 TO 2 FEET
BUILDING TO 2 TO 4 FEET AFTER MIDNIGHT.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE MORNING. PATCHY FOG THROUGH THE DAY. WAVES 2 TO
4 FEET SUBSIDING TO 1 TO 3 FEET IN THE AFTERNOON.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY.
WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES
1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ150-140400-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
501 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
TONIGHT
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS AFTER MIDNIGHT. CHANCE OF RAIN THROUGH THE
NIGHT. PATCHY FOG IN THE LATE EVENING AND OVERNIGHT. WAVES 1 TO
3 FEET BUILDING TO 2 TO 4 FEET AFTER MIDNIGHT.
TUESDAY
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS EASING TO 5 TO 10 KNOTS IN THE AFTERNOON. PATCHY FOG
THROUGH THE DAY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET LATE
IN THE AFTERNOON.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY.
WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES
1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ148-140400-
OAK POINT TO SAXON HARBOR WI-
501 PM CDT MON APR 13 2026
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. CHANCE
OF RAIN UNTIL EARLY MORNING. SLIGHT CHANCE OF RAIN LATE IN THE
NIGHT. PATCHY FOG IN THE LATE EVENING AND OVERNIGHT. WAVES 1 TO
3 FEET BUILDING TO 2 TO 4 FEET AFTER MIDNIGHT.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE MORNING. PATCHY FOG THROUGH THE DAY. WAVES 2 TO
4 FEET SUBSIDING TO 1 TO 3 FEET LATE IN THE AFTERNOON.
TUESDAY NIGHT
NORTH WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES
1 TO 2 FEET.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES
1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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