604
FZUS53 KDLH 131719
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
1219 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.
LSZ140-132200-
GRAND PORTAGE TO GRAND MARAIS MN-
1219 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY MORNING...
REST OF TODAY
NORTHEAST WIND 5 KNOTS. PARTLY SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. PATCHY FOG THROUGH THE NIGHT. SLIGHT CHANCE OF RAIN IN
THE EVENING. CHANCE OF RAIN AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE MORNING. PATCHY FOG THROUGH THE DAY. SLIGHT CHANCE OF RAIN IN
THE MORNING. CHANCE OF RAIN IN THE AFTERNOON. WAVES 1 TO 3 FEET.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING NORTH
AFTER MIDNIGHT. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ141-132200-
GRAND MARAIS TO TACONITE HARBOR MN-
1219 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY MORNING...
REST OF TODAY
NORTHEAST WIND 5 KNOTS. PARTLY SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. PATCHY FOG THROUGH THE NIGHT. SLIGHT CHANCE OF RAIN IN
THE EVENING. CHANCE OF RAIN AFTER MIDNIGHT. WAVES 1 TO 2 FEET
BUILDING TO 1 TO 3 FEET AFTER MIDNIGHT.
TUESDAY
NORTHEAST WIND 5 TO 10 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 KNOTS BECOMING NORTH IN THE
LATE EVENING AND OVERNIGHT. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ142-132200-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
1219 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
REST OF TODAY
NORTH WIND 5 KNOTS BECOMING NORTHEAST LATE.
MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
AFTER MIDNIGHT. PATCHY FOG. CHANCE OF RAIN. WAVES 1 TO 2 FEET
BUILDING TO 2 TO 4 FEET AFTER MIDNIGHT.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY FOG THROUGH THE
DAY. SLIGHT CHANCE OF RAIN THROUGH THE DAY. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET LATE IN THE AFTERNOON.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTH 5 KNOTS
AFTER MIDNIGHT. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ143-132200-
SILVER BAY HARBOR TO TWO HARBORS MN-
1219 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
REST OF TODAY
NORTHEAST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
RAIN LATE. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE EVENING AND OVERNIGHT. PATCHY FOG. CHANCE OF RAIN. WAVES
1 TO 2 FEET BUILDING TO 2 TO 4 FEET IN THE LATE EVENING AND
OVERNIGHT.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS EASING TO 5 KNOTS LATE
IN THE AFTERNOON. PATCHY FOG THROUGH THE DAY. SLIGHT CHANCE OF
RAIN THROUGH THE DAY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET
LATE IN THE AFTERNOON.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLOUDY. WAVES
1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ144-132200-
TWO HARBORS TO DULUTH MN-
1219 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
REST OF TODAY
NORTHEAST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
RAIN LATE. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE EVENING AND OVERNIGHT. PATCHY FOG. CHANCE OF RAIN. WAVES
2 TO 4 FEET.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS EASING TO 5 KNOTS LATE
IN THE AFTERNOON. PATCHY FOG THROUGH THE DAY. SLIGHT CHANCE OF
RAIN THROUGH THE DAY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET
LATE IN THE AFTERNOON.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLOUDY. WAVES
1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ145-132200-
DULUTH MN TO PORT WING WI-
1219 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
REST OF TODAY
NORTHEAST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
RAIN LATE. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE EVENING AND OVERNIGHT. PATCHY FOG. CHANCE OF RAIN. WAVES
2 TO 4 FEET.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. PATCHY FOG THROUGH THE
DAY. SLIGHT CHANCE OF RAIN 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.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ146-132200-
PORT WING TO SAND ISLAND WI-
1219 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
REST OF TODAY
NORTHEAST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
RAIN LATE. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE EVENING AND OVERNIGHT. PATCHY FOG. CHANCE OF RAIN. WAVES
1 TO 2 FEET BUILDING TO 2 TO 4 FEET IN THE LATE EVENING AND
OVERNIGHT.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS EASING TO 5 KNOTS LATE
IN THE AFTERNOON. PATCHY FOG THROUGH THE DAY. SLIGHT CHANCE OF
RAIN IN THE AFTERNOON. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET
LATE IN THE AFTERNOON.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLOUDY. WAVES
1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ147-132200-
SAND ISLAND TO BAYFIELD WI-
1219 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
REST OF TODAY
NORTHEAST WIND 5 KNOTS. MOSTLY CLOUDY. WAVES
1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
AFTER MIDNIGHT. PATCHY FOG. CHANCE OF RAIN. WAVES 1 TO 2 FEET
BUILDING TO 2 TO 4 FEET IN THE LATE EVENING AND OVERNIGHT.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS. 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 KNOTS. MOSTLY CLOUDY. WAVES
1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ150-132200-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
1219 PM CDT MON APR 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CDT THIS EVENING
THROUGH TUESDAY AFTERNOON...
REST OF TODAY
NORTHEAST WIND 5 KNOTS. MOSTLY CLOUDY. WAVES
1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE EVENING AND OVERNIGHT. PATCHY FOG. CHANCE OF RAIN. WAVES
1 TO 2 FEET BUILDING TO 3 TO 5 FEET IN THE LATE EVENING AND
OVERNIGHT. WAVES OCCASIONALLY TO 7 FEET.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE MORNING. PATCHY FOG THROUGH THE DAY. WAVES 3 TO
5 FEET.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLOUDY. WAVES
1 TO 3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ148-132200-
OAK POINT TO SAXON HARBOR WI-
1219 PM CDT MON APR 13 2026
REST OF TODAY
NORTHEAST WIND 5 KNOTS. SLIGHT CHANCE OF RAIN
LATE. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY FOG THROUGH THE
NIGHT. SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. CHANCE OF
RAIN THROUGH THE NIGHT. WAVES 1 TO 2 FEET BUILDING TO 2 TO 4 FEET
IN THE LATE EVENING AND OVERNIGHT.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY FOG THROUGH THE
DAY. WAVES 1 TO 3 FEET.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLOUDY. WAVES
1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page