941
FZUS53 KDLH 122309
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
609 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-
609 PM CDT SUN APR 12 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 1 AM CDT MONDAY
REST OF TONIGHT
EAST WIND 5 TO 10 KNOTS BECOMING WEST WITH
GUSTS TO AROUND 20 KNOTS IN THE LATE EVENING AND OVERNIGHT.
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING. AREAS OF
DENSE FOG EARLY IN THE EVENING. PATCHY DENSE FOG IN THE LATE
EVENING AND OVERNIGHT. WAVES 1 TO 2 FEET.
MONDAY
WEST WIND 5 TO 10 KNOTS BECOMING NORTH EARLY IN THE
AFTERNOON, THEN 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
20 KNOTS IN THE LATE EVENING AND OVERNIGHT. RAIN SHOWERS LIKELY
THROUGH THE NIGHT. WAVES 1 TO 2 FEET BUILDING TO 1 TO 3 FEET
EARLY IN THE MORNING.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS 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-
609 PM CDT SUN APR 12 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 1 AM CDT MONDAY
REST OF TONIGHT
NORTH WIND 5 KNOTS BECOMING WEST WITH GUSTS TO
AROUND 20 KNOTS IN THE LATE EVENING AND OVERNIGHT. CHANCE OF
THUNDERSTORMS EARLY IN THE EVENING. CHANCE OF RAIN SHOWERS IN THE
EVENING. SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE EVENING.
AREAS OF DENSE FOG EARLY IN THE EVENING. PATCHY DENSE FOG IN THE
LATE EVENING AND OVERNIGHT. 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
20 KNOTS IN THE LATE EVENING AND OVERNIGHT. RAIN SHOWERS LIKELY.
WAVES 1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY 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.
LSZ142-131000-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
609 PM CDT SUN APR 12 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 1 AM CDT MONDAY
REST OF TONIGHT
NORTHWEST WIND 5 KNOTS BECOMING WEST WITH
GUSTS TO AROUND 20 KNOTS IN THE LATE EVENING AND OVERNIGHT.
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS EARLY
IN THE EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS LATE IN THE
EVENING. AREAS OF DENSE FOG EARLY IN THE EVENING. PATCHY DENSE
FOG IN THE LATE EVENING AND OVERNIGHT. WAVES 1 FOOT OR LESS.
MONDAY
WEST WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTHEAST 5 KNOTS IN THE
AFTERNOON. PATCHY FOG IN THE MORNING. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS IN THE LATE EVENING AND OVERNIGHT. PATCHY FOG IN THE
EVENING. RAIN SHOWERS IN THE EVENING. SLIGHT CHANCE OF
THUNDERSTORMS THROUGH THE NIGHT. CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. WAVES 1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF RAIN
SHOWERS THROUGH THE DAY. WAVES 1 TO 3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ143-131000-
SILVER BAY HARBOR TO TWO HARBORS MN-
609 PM CDT SUN APR 12 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 1 AM CDT MONDAY
REST OF TONIGHT
NORTHWEST WIND 5 KNOTS BECOMING WEST IN THE
LATE EVENING AND OVERNIGHT. SLIGHT CHANCE OF THUNDERSTORMS EARLY
IN THE EVENING. SLIGHT CHANCE OF RAIN SHOWERS IN THE EVENING.
AREAS OF DENSE FOG EARLY IN THE EVENING. PATCHY DENSE FOG IN THE
LATE EVENING AND OVERNIGHT. WAVES 1 FOOT OR LESS.
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 15 TO 20 KNOTS. RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS
IN THE MORNING. WAVES 1 TO 3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ144-131000-
TWO HARBORS TO DULUTH MN-
609 PM CDT SUN APR 12 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 1 AM CDT MONDAY
REST OF TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS BECOMING WEST IN
THE LATE EVENING AND OVERNIGHT. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE EVENING. AREAS OF DENSE FOG EARLY IN
THE EVENING, THEN PATCHY DENSE FOG IN THE LATE EVENING AND
OVERNIGHT. WAVES 1 FOOT OR LESS.
MONDAY
WEST WIND 5 KNOTS BECOMING NORTH LATE IN THE MORNING,
THEN 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. RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 TO 2 FEET BUILDING TO
2 TO 4 FEET IN THE LATE EVENING AND OVERNIGHT.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS
IN THE MORNING. WAVES 1 TO 3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ145-131000-
DULUTH MN TO PORT WING WI-
609 PM CDT SUN APR 12 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 1 AM CDT MONDAY
REST OF TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS BECOMING WEST
10 TO 15 KNOTS IN THE LATE EVENING AND OVERNIGHT. SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS EARLY IN THE EVENING. PATCHY DENSE
FOG THROUGH THE NIGHT. WAVES 1 TO 2 FEET.
MONDAY
WEST WIND 5 KNOTS BECOMING NORTHEAST IN THE AFTERNOON.
PATCHY FOG IN THE MORNING. CHANCE OF RAIN SHOWERS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS. PATCHY FOG IN THE
EVENING. RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE NIGHT. 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 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS
IN THE MORNING. 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.
LSZ146-131000-
PORT WING TO SAND ISLAND WI-
609 PM CDT SUN APR 12 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY
REST OF TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS BECOMING WEST
LATE IN THE EVENING, THEN RISING TO 10 TO 15 KNOTS AFTER
MIDNIGHT. SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE EVENING.
SLIGHT CHANCE OF RAIN SHOWERS IN THE EVENING. PATCHY DENSE FOG
THROUGH THE NIGHT. WAVES 1 TO 2 FEET.
MONDAY
NORTHWEST WIND 5 KNOTS BECOMING NORTHEAST IN THE
AFTERNOON. PATCHY DENSE 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. RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS
IN THE MORNING. WAVES 1 TO 3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ147-131000-
SAND ISLAND TO BAYFIELD WI-
609 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. SLIGHT CHANCE OF
THUNDERSTORMS EARLY IN THE EVENING. SLIGHT CHANCE OF RAIN SHOWERS
IN THE EVENING. PATCHY DENSE FOG THROUGH THE NIGHT. WAVES 1 TO
2 FEET.
MONDAY
NORTHWEST WIND 5 KNOTS BECOMING NORTHEAST IN THE
AFTERNOON. PATCHY DENSE 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 IN THE LATE EVENING AND OVERNIGHT. PATCHY FOG IN THE
EVENING. RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE NIGHT. WAVES 1 TO 2 FEET BUILDING TO 1 TO 3 FEET AFTER
MIDNIGHT.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS. 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-
609 PM CDT SUN APR 12 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY
REST OF TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS BECOMING WEST IN
THE LATE EVENING AND OVERNIGHT. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. PATCHY DENSE FOG IN THE EVENING,
THEN AREAS OF DENSE FOG AFTER MIDNIGHT. PATCHY DENSE FOG TOWARD
DAYBREAK. WAVES 1 TO 3 FEET.
MONDAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST IN THE
AFTERNOON. PATCHY DENSE FOG IN THE MORNING. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 25 KNOTS AFTER MIDNIGHT, THEN DECREASING
TO 20 KNOTS EARLY IN THE MORNING. PATCHY FOG IN THE EVENING. RAIN
SHOWERS IN THE EVENING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE NIGHT. CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES 1 TO
3 FEET BUILDING TO 2 TO 4 FEET AFTER MIDNIGHT. A SMALL CRAFT
ADVISORY MAY BE NEEDED.
TUESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY 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-
609 PM CDT SUN APR 12 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 1 AM CDT MONDAY
REST OF TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS BECOMING WEST 5 TO 10 KNOTS AFTER MIDNIGHT.
SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE EVENING. SLIGHT
CHANCE OF RAIN SHOWERS IN THE EVENING. PATCHY DENSE FOG IN THE
LATE EVENING AND OVERNIGHT. 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. PATCHY FOG IN THE
EVENING. RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE NIGHT. WAVES 1 TO 3 FEET.
TUESDAY
NORTHEAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS
IN THE MORNING. 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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