974
FZUS53 KDLH 120958
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
458 AM CDT TUE MAY 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-
458 AM CDT TUE MAY 12 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
TODAY
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
BECOMING NORTHEAST 15 TO 20 KNOTS LATE IN THE AFTERNOON. PATCHY
FOG UNTIL LATE AFTERNOON. RAIN SHOWERS EARLY IN THE MORNING. RAIN
SHOWERS LIKELY LATE IN THE MORNING, THEN CHANCE OF RAIN SHOWERS
IN THE AFTERNOON. WAVES 3 TO 5 FEET.
TONIGHT
NORTH WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS AFTER MIDNIGHT. CHANCE OF RAIN SHOWERS IN
THE EVENING. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 2 FEET EARLY IN
THE MORNING.
WEDNESDAY
NORTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE MORNING. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
WEDNESDAY NIGHT
NORTH WIND 5 TO 10 KNOTS BECOMING NORTHEAST
EARLY IN THE MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
LSZ141-121600-
GRAND MARAIS TO TACONITE HARBOR MN-
458 AM CDT TUE MAY 12 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
TODAY
EAST WIND 10 TO 15 KNOTS BECOMING NORTH 5 TO 10 KNOTS
LATE IN THE AFTERNOON. GUSTS UP TO 20 KNOTS. RAIN SHOWERS EARLY
IN THE MORNING, THEN CHANCE OF RAIN SHOWERS IN THE LATE MORNING
AND AFTERNOON. WAVES 2 TO 4 FEET.
TONIGHT
NORTH WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS EARLY
IN THE EVENING. CHANCE OF RAIN SHOWERS IN THE EVENING. WAVES 1 TO
3 FEET SUBSIDING TO 1 TO 2 FEET IN THE LATE EVENING AND
OVERNIGHT.
WEDNESDAY
NORTHWEST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 TO
2 FEET.
WEDNESDAY NIGHT
NORTH WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS, THEN BECOMING NORTH 5 KNOTS
AFTER MIDNIGHT BECOMING VARIABLE 10 KNOTS OR LESS. MOSTLY CLEAR.
WAVES 1 FOOT OR LESS.
LSZ142-121600-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
458 AM CDT TUE MAY 12 2026
TODAY
NORTHEAST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTH LATE IN THE AFTERNOON. RAIN SHOWERS
LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE MORNING,
THEN CHANCE OF RAIN SHOWERS IN THE LATE MORNING AND AFTERNOON.
WAVES 1 TO 3 FEET.
TONIGHT
NORTH WIND 5 KNOTS. CHANCE OF RAIN SHOWERS IN THE
EVENING. WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHWEST WIND 5 KNOTS. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTH WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
LSZ143-121600-
SILVER BAY HARBOR TO TWO HARBORS MN-
458 AM CDT TUE MAY 12 2026
TODAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTH 5 TO 10 KNOTS LATE IN THE AFTERNOON.
SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE MORNING. CHANCE OF
RAIN SHOWERS THROUGH THE DAY. WAVES 1 TO 2 FEET.
TONIGHT
NORTHWEST WIND 5 KNOTS. CHANCE OF RAIN SHOWERS IN THE
EVENING. WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHWEST WIND 5 KNOTS BECOMING WEST LATE IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
VARIABLE WINDS 10 KNOTS OR LESS. MOSTLY CLEAR.
WAVES 1 FOOT OR LESS.
LSZ144-121600-
TWO HARBORS TO DULUTH MN-
458 AM CDT TUE MAY 12 2026
TODAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHWEST WITH GUSTS TO AROUND 20 KNOTS IN THE
AFTERNOON. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS EARLY IN THE MORNING, THEN SLIGHT CHANCE OF RAIN
SHOWERS LATE IN THE MORNING. CHANCE OF RAIN SHOWERS IN THE
AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
NORTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE EVENING. CHANCE OF RAIN SHOWERS IN THE EVENING. WAVES 1 FOOT
OR LESS.
WEDNESDAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST LATE
IN THE AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
LSZ145-121600-
DULUTH MN TO PORT WING WI-
458 AM CDT TUE MAY 12 2026
TODAY
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS
BECOMING NORTHWEST WITH GUSTS TO AROUND 20 KNOTS IN THE
AFTERNOON. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS EARLY IN THE MORNING, THEN SLIGHT CHANCE OF RAIN
SHOWERS LATE IN THE MORNING. CHANCE OF RAIN SHOWERS IN THE
AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
NORTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE EVENING. CHANCE OF RAIN SHOWERS IN THE EVENING. WAVES 1 TO
2 FEET.
WEDNESDAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST LATE
IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
EAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT
OR LESS.
LSZ146-121600-
PORT WING TO SAND ISLAND WI-
458 AM CDT TUE MAY 12 2026
TODAY
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS
BECOMING NORTH 5 TO 10 KNOTS IN THE AFTERNOON. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE MORNING,
THEN SLIGHT CHANCE OF RAIN SHOWERS LATE IN THE MORNING. CHANCE OF
RAIN SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS
IN THE EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
WEDNESDAY
WEST WIND 5 KNOTS. MOSTLY SUNNY. WAVES 1 FOOT OR
LESS.
WEDNESDAY NIGHT
EAST WIND 5 KNOTS IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
LSZ147-121600-
SAND ISLAND TO BAYFIELD WI-
458 AM CDT TUE MAY 12 2026
TODAY
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING NORTH IN THE
AFTERNOON. RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS
EARLY IN THE MORNING, THEN CHANCE OF RAIN SHOWERS IN THE LATE
MORNING AND EARLY AFTERNOON. RAIN SHOWERS LIKELY LATE IN THE
AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS
IN THE EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
WEDNESDAY
NORTHWEST WIND 5 KNOTS. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
SOUTHEAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS, THEN BECOMING SOUTHEAST
5 KNOTS EARLY IN THE MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
LSZ150-121600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
458 AM CDT TUE MAY 12 2026
TODAY
SOUTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTH WITH GUSTS TO AROUND 20 KNOTS LATE IN THE
AFTERNOON. RAIN SHOWERS LIKELY EARLY IN THE MORNING. SLIGHT
CHANCE OF THUNDERSTORMS IN THE MORNING. CHANCE OF RAIN SHOWERS IN
THE LATE MORNING AND AFTERNOON. WAVES 1 TO 3 FEET.
TONIGHT
NORTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHWEST 5 TO 10 KNOTS EARLY IN THE MORNING.
CHANCE OF RAIN SHOWERS IN THE EVENING, THEN SLIGHT CHANCE OF RAIN
SHOWERS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 TO 2 FEET.
WEDNESDAY NIGHT
SOUTHWEST WIND 5 KNOTS BECOMING SOUTHEAST IN
THE LATE EVENING AND OVERNIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
LSZ121-121600-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
458 AM CDT TUE MAY 12 2026
TODAY
SOUTH WIND 5 TO 10 KNOTS BECOMING NORTHWEST IN THE
AFTERNOON. GUSTS UP TO 20 KNOTS. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS EARLY IN THE MORNING, THEN CHANCE OF RAIN
SHOWERS IN THE LATE MORNING AND AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS
IN THE EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
WEDNESDAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTH IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS, THEN BECOMING SOUTH 5 KNOTS
EARLY IN THE MORNING. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
LSZ148-121600-
OAK POINT TO SAXON HARBOR WI-
458 AM CDT TUE MAY 12 2026
TODAY
SOUTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING NORTHWEST 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS IN THE AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS IN THE
MORNING. RAIN SHOWERS LIKELY THROUGH THE DAY. WAVES 1 TO 2 FEET.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS EASING TO 5 KNOTS EARLY
IN THE MORNING. CHANCE OF RAIN SHOWERS IN THE EVENING, THEN
SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTH IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
WEDNESDAY NIGHT
EAST WIND 5 KNOTS BECOMING SOUTHEAST IN THE
LATE EVENING AND OVERNIGHT. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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