942
FZUS53 KDLH 130415
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
1115 PM CDT SUN APR 12 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.
LSZ140-131000-
GRAND PORTAGE TO GRAND MARAIS MN-
1115 PM CDT SUN APR 12 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 1 AM CDT MONDAY
REST OF TONIGHT
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
AFTER MIDNIGHT. PATCHY FOG. WAVES 1 TO 2 FEET.
MONDAY
WEST WIND 5 TO 10 KNOTS BECOMING EAST LATE IN THE
AFTERNOON. PATCHY FOG IN THE MORNING. WAVES 1 TO 2 FEET.
MONDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS IN THE LATE EVENING AND EARLY MORNING DECREASING TO
20 KNOTS. SLIGHT CHANCE OF RAIN SHOWERS THROUGH THE NIGHT. WAVES
1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
PATCHY FOG IN THE MORNING. CHANCE OF RAIN SHOWERS THROUGH THE
DAY. WAVES 1 TO 3 FEET SUBSIDING TO 1 TO 2 FEET IN THE AFTERNOON.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ141-131000-
GRAND MARAIS TO TACONITE HARBOR MN-
1115 PM CDT SUN APR 12 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 1 AM CDT MONDAY
REST OF TONIGHT
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
AFTER MIDNIGHT. PATCHY FOG. WAVES 1 TO 2 FEET.
MONDAY
WEST WIND 5 KNOTS BECOMING NORTH EARLY IN THE
AFTERNOON, THEN BECOMING EAST LATE IN THE AFTERNOON. PATCHY FOG
IN THE MORNING. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS IN THE LATE EVENING AND EARLY MORNING DECREASING TO
20 KNOTS. PATCHY FOG. CHANCE OF RAIN SHOWERS. WAVES 1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS EASING TO 5 KNOTS LATE IN THE AFTERNOON. PATCHY FOG IN
THE MORNING. CHANCE OF RAIN SHOWERS IN THE MORNING. WAVES 1 TO
3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ142-131000-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
1115 PM CDT SUN APR 12 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 1 AM CDT MONDAY
REST OF TONIGHT
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
AFTER MIDNIGHT. PATCHY FOG. WAVES 1 FOOT OR LESS.
MONDAY
WEST WIND 5 KNOTS BECOMING NORTHEAST IN THE AFTERNOON.
PATCHY FOG IN THE MORNING. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS IN THE LATE EVENING AND EARLY MORNING DECREASING TO
20 KNOTS. PATCHY FOG. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. WAVES 1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS EASING TO 5 KNOTS IN THE AFTERNOON. PATCHY FOG IN THE
MORNING. CHANCE OF RAIN SHOWERS IN THE MORNING. WAVES 1 TO
3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ143-131000-
SILVER BAY HARBOR TO TWO HARBORS MN-
1115 PM CDT SUN APR 12 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 1 AM CDT MONDAY
REST OF TONIGHT
WEST WIND 5 TO 10 KNOTS. PATCHY FOG. WAVES
1 FOOT OR LESS.
MONDAY
WEST WIND 5 KNOTS BECOMING NORTHEAST IN THE AFTERNOON.
PATCHY FOG IN THE MORNING. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS IN THE LATE EVENING AND EARLY
MORNING, THEN DECREASING TO 20 KNOTS EARLY IN THE MORNING. PATCHY
FOG THROUGH THE NIGHT. SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING. CHANCE OF RAIN SHOWERS THROUGH THE NIGHT. WAVES 1 TO
3 FEET.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE MORNING. PATCHY FOG IN THE MORNING. SLIGHT CHANCE OF RAIN
SHOWERS THROUGH THE DAY. WAVES 1 TO 3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ144-131000-
TWO HARBORS TO DULUTH MN-
1115 PM CDT SUN APR 12 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 1 AM CDT MONDAY
REST OF TONIGHT
WEST WIND 10 TO 15 KNOTS EASING TO 5 KNOTS
TOWARD DAYBREAK. GUSTS UP TO 20 KNOTS AFTER MIDNIGHT. PATCHY FOG.
WAVES 1 FOOT OR LESS.
MONDAY
WEST WIND 5 KNOTS BECOMING NORTHEAST 10 TO 15 KNOTS IN
THE AFTERNOON. PATCHY FOG IN THE MORNING. CHANCE OF RAIN SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT
OR LESS.
MONDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO
25 KNOTS IN THE LATE EVENING AND OVERNIGHT. PATCHY FOG THROUGH
THE NIGHT. SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. CHANCE
OF RAIN SHOWERS THROUGH THE NIGHT. WAVES 1 TO 2 FEET BUILDING TO
2 TO 4 FEET IN THE LATE EVENING AND OVERNIGHT.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE MORNING. PATCHY FOG IN THE MORNING. SLIGHT CHANCE OF RAIN
SHOWERS THROUGH THE DAY. WAVES 1 TO 3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ145-131000-
DULUTH MN TO PORT WING WI-
1115 PM CDT SUN APR 12 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 1 AM CDT MONDAY
REST OF TONIGHT
WEST WIND 10 TO 15 KNOTS. PATCHY FOG THROUGH
THE NIGHT. WAVES 1 TO 2 FEET.
MONDAY
WEST WIND 5 KNOTS BECOMING NORTHWEST LATE IN THE
MORNING, THEN BECOMING NORTHEAST 10 TO 15 KNOTS IN THE AFTERNOON.
PATCHY FOG IN THE MORNING. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO
25 KNOTS IN THE LATE EVENING AND EARLY MORNING DECREASING TO
20 KNOTS. PATCHY FOG. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET IN THE
LATE EVENING AND OVERNIGHT. A SMALL CRAFT ADVISORY MAY BE NEEDED.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE MORNING. PATCHY FOG IN THE MORNING. SLIGHT CHANCE OF
RAIN SHOWERS IN THE MORNING. WAVES 1 TO 3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ146-131000-
PORT WING TO SAND ISLAND WI-
1115 PM CDT SUN APR 12 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY
REST OF TONIGHT
WEST WIND 5 TO 10 KNOTS. PATCHY FOG. WAVES
1 TO 2 FEET.
MONDAY
WEST WIND 5 KNOTS BECOMING NORTHEAST IN THE AFTERNOON.
PATCHY FOG IN THE MORNING. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS IN THE LATE EVENING AND EARLY
MORNING, THEN DECREASING TO 20 KNOTS EARLY IN THE MORNING. PATCHY
FOG. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.
WAVES 1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS EASING TO 5 KNOTS IN THE AFTERNOON. PATCHY FOG IN THE
MORNING. SLIGHT CHANCE OF RAIN SHOWERS THROUGH THE DAY. WAVES
1 TO 3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ147-131000-
SAND ISLAND TO BAYFIELD WI-
1115 PM CDT SUN APR 12 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY
REST OF TONIGHT
WEST WIND 5 TO 10 KNOTS. PATCHY FOG. WAVES
1 TO 2 FEET.
MONDAY
WEST WIND 5 KNOTS BECOMING NORTHEAST IN THE AFTERNOON.
PATCHY FOG IN THE MORNING. SLIGHT CHANCE OF RAIN SHOWERS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
25 KNOTS IN THE LATE EVENING AND EARLY MORNING DECREASING TO
20 KNOTS. PATCHY FOG. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. WAVES 1 TO 2 FEET BUILDING TO 2 TO 4 FEET AFTER
MIDNIGHT.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS EASING TO 5 KNOTS IN THE AFTERNOON. PATCHY FOG IN THE
MORNING. SLIGHT CHANCE OF RAIN SHOWERS THROUGH THE DAY. WAVES
1 TO 3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ150-131000-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
1115 PM CDT SUN APR 12 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY
REST OF TONIGHT
WEST WIND 10 TO 15 KNOTS. AREAS OF FOG LATE IN
THE EVENING, THEN PATCHY FOG AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
MONDAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST IN THE
AFTERNOON. PATCHY FOG IN THE MORNING. SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS IN THE LATE EVENING AND
OVERNIGHT. PATCHY FOG. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET AFTER
MIDNIGHT. A SMALL CRAFT ADVISORY MAY BE NEEDED.
TUESDAY
NORTHEAST WIND 15 TO 20 KNOTS EASING TO 5 TO 10 KNOTS
IN THE AFTERNOON. PATCHY FOG IN THE MORNING. SLIGHT CHANCE OF
RAIN SHOWERS THROUGH THE DAY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO
3 FEET LATE IN THE AFTERNOON.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ148-131000-
OAK POINT TO SAXON HARBOR WI-
1115 PM CDT SUN APR 12 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 1 AM CDT MONDAY
REST OF TONIGHT
WEST WIND 5 TO 10 KNOTS. PATCHY FOG TOWARD
DAYBREAK. WAVES 1 TO 2 FEET.
MONDAY
NORTHWEST WIND 5 KNOTS BECOMING NORTHEAST IN THE
AFTERNOON. PATCHY FOG IN THE MORNING. SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS UNTIL EARLY MORNING. PATCHY FOG. CHANCE OF RAIN SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY FOG IN THE
MORNING. SLIGHT CHANCE OF RAIN SHOWERS THROUGH THE DAY. WAVES
1 TO 3 FEET SUBSIDING TO 1 TO 2 FEET IN THE LATE MORNING AND
AFTERNOON.
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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