348
FZUS53 KDLH 121024
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
524 AM 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.
LSZ140-121600-
GRAND PORTAGE TO GRAND MARAIS MN-
524 AM CDT SUN APR 12 2026
TODAY
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS
EASING TO 5 KNOTS LATE IN THE AFTERNOON. PATCHY FOG UNTIL LATE
AFTERNOON. CHANCE OF RAIN SHOWERS UNTIL LATE AFTERNOON. CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. RAIN SHOWERS LIKELY LATE IN THE
AFTERNOON. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET IN THE
AFTERNOON.
TONIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING WEST IN THE LATE
EVENING AND OVERNIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES
1 TO 3 FEET.
MONDAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING EAST IN THE
AFTERNOON. PARTLY SUNNY. 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
IN THE EVENING, THEN CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES
1 TO 3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ141-121600-
GRAND MARAIS TO TACONITE HARBOR MN-
524 AM CDT SUN APR 12 2026
TODAY
EAST WIND 5 TO 10 KNOTS. PATCHY FOG UNTIL LATE
AFTERNOON. CHANCE OF RAIN SHOWERS UNTIL LATE AFTERNOON. SLIGHT
CHANCE OF THUNDERSTORMS EARLY IN THE AFTERNOON, THEN RAIN SHOWERS
LIKELY AND CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON. WAVES
1 TO 3 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING WEST IN THE LATE
EVENING AND OVERNIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
EVENING. WAVES 1 TO 2 FEET.
MONDAY
NORTHWEST WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
PARTLY SUNNY. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS IN THE LATE EVENING AND EARLY MORNING. RAIN SHOWERS
LIKELY IN THE EVENING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE
NIGHT. CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ142-121600-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
524 AM CDT SUN APR 12 2026
TODAY
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY FOG IN THE MORNING.
AREAS OF DENSE FOG EARLY IN THE AFTERNOON. CHANCE OF RAIN SHOWERS
UNTIL LATE AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE
AFTERNOON, THEN RAIN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS
LATE IN THE AFTERNOON. WAVES 1 TO 3 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING WEST AFTER
MIDNIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING.
WAVES 1 TO 2 FEET.
MONDAY
WEST WIND 5 KNOTS BECOMING NORTHWEST LATE IN THE
MORNING, THEN BECOMING NORTHEAST IN THE AFTERNOON. SLIGHT CHANCE
OF RAIN SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS IN THE LATE EVENING AND EARLY MORNING. RAIN SHOWERS
LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ143-121600-
SILVER BAY HARBOR TO TWO HARBORS MN-
524 AM CDT SUN APR 12 2026
TODAY
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY FOG UNTIL LATE
AFTERNOON. CHANCE OF RAIN SHOWERS UNTIL LATE AFTERNOON, THEN RAIN
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON.
WAVES 1 TO 2 FEET.
TONIGHT
WEST WIND 5 TO 10 KNOTS. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. WAVES 1 FOOT OR LESS.
MONDAY
WEST WIND 5 KNOTS BECOMING NORTHEAST IN THE AFTERNOON.
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 EARLY MORNING. RAIN SHOWERS
LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 TO 3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ144-121600-
TWO HARBORS TO DULUTH MN-
524 AM CDT SUN APR 12 2026
TODAY
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY FOG UNTIL LATE
AFTERNOON. CHANCE OF RAIN SHOWERS THROUGH THE DAY. SLIGHT CHANCE
OF THUNDERSTORMS EARLY IN THE AFTERNOON, THEN CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING WEST EARLY IN
THE MORNING. CHANCE OF THUNDERSTORMS AND SLIGHT CHANCE OF RAIN
SHOWERS IN THE EVENING. WAVES 1 FOOT OR LESS.
MONDAY
NORTHWEST WIND 5 KNOTS BECOMING NORTH LATE IN THE
MORNING, THEN BECOMING NORTHEAST 10 TO 15 KNOTS IN THE AFTERNOON.
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS UNTIL EARLY MORNING. CHANCE OF THUNDERSTORMS IN THE
EVENING. RAIN SHOWERS LIKELY THROUGH THE NIGHT. WAVES 1 TO
3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ145-121600-
DULUTH MN TO PORT WING WI-
524 AM CDT SUN APR 12 2026
TODAY
EAST WIND 5 TO 10 KNOTS. PATCHY FOG UNTIL LATE
AFTERNOON. CHANCE OF RAIN SHOWERS THROUGH THE DAY. SLIGHT CHANCE
OF THUNDERSTORMS EARLY IN THE AFTERNOON, THEN CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING WEST EARLY IN
THE MORNING. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
EVENING. WAVES 1 FOOT OR LESS.
MONDAY
NORTHWEST WIND 5 KNOTS BECOMING NORTH LATE IN THE
MORNING, THEN BECOMING NORTHEAST 10 TO 15 KNOTS IN THE AFTERNOON.
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS UNTIL EARLY MORNING. CHANCE OF THUNDERSTORMS IN THE
EVENING. RAIN SHOWERS LIKELY THROUGH THE NIGHT. WAVES 1 TO
3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ146-121600-
PORT WING TO SAND ISLAND WI-
524 AM CDT SUN APR 12 2026
TODAY
EAST WIND 5 TO 10 KNOTS. PATCHY FOG UNTIL LATE
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS UNTIL LATE AFTERNOON.
CHANCE OF RAIN SHOWERS THROUGH THE DAY. CHANCE OF THUNDERSTORMS
LATE IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING WEST EARLY IN
THE MORNING. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING.
WAVES 1 FOOT OR LESS.
MONDAY
WEST WIND 5 KNOTS BECOMING NORTHEAST IN THE AFTERNOON.
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS 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 EARLY MORNING. CHANCE OF
THUNDERSTORMS IN THE EVENING. RAIN SHOWERS LIKELY THROUGH THE
NIGHT. SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO
3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ147-121600-
SAND ISLAND TO BAYFIELD WI-
524 AM CDT SUN APR 12 2026
TODAY
SOUTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE AFTERNOON. PATCHY FOG UNTIL LATE AFTERNOON. CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES 1 FOOT OR LESS.
TONIGHT
WEST WIND 5 TO 10 KNOTS. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. WAVES 1 TO 2 FEET.
MONDAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST IN THE
AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 10 KNOTS RISING TO 10 TO 15 KNOTS
WITH GUSTS TO AROUND 20 KNOTS IN THE LATE EVENING AND OVERNIGHT.
CHANCE OF THUNDERSTORMS AND SLIGHT CHANCE OF RAIN SHOWERS IN THE
EVENING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET BUILDING TO 1 TO
3 FEET AFTER MIDNIGHT.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ150-121600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
524 AM CDT SUN APR 12 2026
TODAY
SOUTHEAST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTH 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS IN THE AFTERNOON. PATCHY FOG UNTIL LATE AFTERNOON.
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FEET.
TONIGHT
WEST WIND 10 TO 15 KNOTS EASING TO 10 KNOTS EARLY IN
THE MORNING. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING.
WAVES 1 TO 2 FEET.
MONDAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST IN THE
AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS. SLIGHT CHANCE OF
RAIN SHOWERS IN THE EVENING. SLIGHT CHANCE OF THUNDERSTORMS
THROUGH THE NIGHT. CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES
1 TO 2 FEET BUILDING TO 2 TO 4 FEET IN THE LATE EVENING AND
OVERNIGHT.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ148-121600-
OAK POINT TO SAXON HARBOR WI-
524 AM CDT SUN APR 12 2026
TODAY
SOUTHEAST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTHWEST 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS IN THE AFTERNOON. PATCHY FOG EARLY IN THE MORNING.
CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE MORNING, THEN
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE LATE MORNING
AND EARLY AFTERNOON. CHANCE OF SHOWERS AND THUNDERSTORMS LATE IN
THE AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING WEST 5 TO 10 KNOTS AFTER MIDNIGHT. CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING. WAVES 1 TO 2 FEET.
MONDAY
NORTH WIND 5 KNOTS BECOMING NORTHEAST IN THE AFTERNOON.
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
MONDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. CHANCE OF
THUNDERSTORMS IN THE EVENING. RAIN SHOWERS THROUGH THE NIGHT.
SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
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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