312
FZUS53 KDLH 161718
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
1218 PM CDT THU APR 16 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.
LSZ140-162200-
GRAND PORTAGE TO GRAND MARAIS MN-
1218 PM CDT THU APR 16 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TODAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTHEAST LATE.
PATCHY DENSE FOG. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE EVENING AND EARLY MORNING. PATCHY FOG THROUGH THE NIGHT.
SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
FRIDAY
NORTHEAST WIND 10 TO 15 KNOTS. PATCHY FOG IN THE
MORNING. RAIN LIKELY AND CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 TO 3 FEET.
FRIDAY NIGHT
NORTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 30 KNOTS. CHANCE OF THUNDERSTORMS IN THE
EVENING. RAIN LIKELY THROUGH THE NIGHT. WAVES 1 TO 3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ141-162200-
GRAND MARAIS TO TACONITE HARBOR MN-
1218 PM CDT THU APR 16 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TODAY
SOUTH WIND 5 KNOTS BECOMING EAST LATE. PATCHY
DENSE FOG. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE LATE EVENING AND EARLY MORNING. PATCHY FOG THROUGH THE NIGHT.
SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
FRIDAY
NORTHEAST WIND 10 TO 15 KNOTS BECOMING NORTH 5 TO
10 KNOTS LATE IN THE AFTERNOON. PATCHY FOG IN THE MORNING. RAIN
AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FEET.
FRIDAY NIGHT
NORTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
20 KNOTS INCREASING TO 30 KNOTS IN THE LATE EVENING AND
OVERNIGHT. CHANCE OF THUNDERSTORMS IN THE EVENING. CHANCE OF RAIN
THROUGH THE NIGHT. WAVES 1 TO 3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ142-162200-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
1218 PM CDT THU APR 16 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TODAY
SOUTHEAST WIND 5 KNOTS BECOMING EAST LATE.
PATCHY DENSE FOG. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
LATE IN THE EVENING. PATCHY FOG THROUGH THE NIGHT. WAVES 1 TO
2 FEET.
FRIDAY
NORTHEAST WIND 10 TO 15 KNOTS. PATCHY FOG IN THE
MORNING. RAIN AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES
1 TO 2 FEET.
FRIDAY NIGHT
NORTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
25 KNOTS INCREASING TO 30 KNOTS IN THE LATE EVENING AND EARLY
MORNING, THEN DECREASING TO 25 KNOTS EARLY IN THE MORNING. CHANCE
OF THUNDERSTORMS IN THE EVENING. CHANCE OF RAIN THROUGH THE
NIGHT. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ143-162200-
SILVER BAY HARBOR TO TWO HARBORS MN-
1218 PM CDT THU APR 16 2026
REST OF TODAY
EAST WIND 5 TO 10 KNOTS. PATCHY DENSE FOG EARLY
IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
UNTIL EARLY MORNING. PATCHY FOG. WAVES 1 TO 2 FEET.
FRIDAY
NORTHEAST WIND 10 TO 15 KNOTS. PATCHY FOG THROUGH THE
DAY. RAIN AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES
1 TO 2 FEET.
FRIDAY NIGHT
NORTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
25 KNOTS. CHANCE OF THUNDERSTORMS IN THE EVENING. CHANCE OF RAIN
THROUGH THE NIGHT. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ144-162200-
TWO HARBORS TO DULUTH MN-
1218 PM CDT THU APR 16 2026
REST OF TODAY
EAST WIND 5 TO 10 KNOTS. PATCHY DENSE FOG EARLY
IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
UNTIL EARLY MORNING. PATCHY FOG. WAVES 1 TO 3 FEET.
FRIDAY
NORTHEAST WIND 10 TO 15 KNOTS BECOMING NORTH WITH GUSTS
TO AROUND 20 KNOTS LATE IN THE AFTERNOON. PATCHY FOG IN THE
MORNING. RAIN AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES
1 TO 2 FEET.
FRIDAY NIGHT
NORTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
25 KNOTS INCREASING TO 30 KNOTS AFTER MIDNIGHT, THEN DECREASING
TO 25 KNOTS EARLY IN THE MORNING. CHANCE OF THUNDERSTORMS IN THE
EVENING. CHANCE OF RAIN THROUGH THE NIGHT. WAVES 1 TO 3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ145-162200-
DULUTH MN TO PORT WING WI-
1218 PM CDT THU APR 16 2026
REST OF TODAY
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY DENSE FOG
EARLY IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE EVENING. PATCHY FOG THROUGH THE NIGHT. WAVES 1 TO 2 FEET
BUILDING TO 1 TO 3 FEET IN THE LATE EVENING AND OVERNIGHT.
FRIDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHWEST WITH GUSTS TO AROUND 20 KNOTS LATE IN
THE AFTERNOON. PATCHY FOG THROUGH THE DAY. RAIN AND CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FEET.
FRIDAY NIGHT
WEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. CHANCE OF THUNDERSTORMS IN THE EVENING. CHANCE OF RAIN
THROUGH THE NIGHT. WAVES 2 TO 4 FEET. A SMALL CRAFT ADVISORY MAY
BE NEEDED.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ146-162200-
PORT WING TO SAND ISLAND WI-
1218 PM CDT THU APR 16 2026
REST OF TODAY
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY DENSE FOG
EARLY IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN
THE EVENING. PATCHY FOG. WAVES 1 TO 2 FEET.
FRIDAY
NORTHEAST WIND 5 TO 10 KNOTS BECOMING NORTHWEST LATE IN
THE AFTERNOON. PATCHY FOG THROUGH THE DAY. RAIN AND CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FEET.
FRIDAY NIGHT
WEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS.
CHANCE OF THUNDERSTORMS IN THE EVENING. CHANCE OF RAIN THROUGH
THE NIGHT. WAVES 1 TO 3 FEET BUILDING TO 3 TO 5 FEET AFTER
MIDNIGHT. A SMALL CRAFT ADVISORY MAY BE NEEDED.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ147-162200-
SAND ISLAND TO BAYFIELD WI-
1218 PM CDT THU APR 16 2026
REST OF TODAY
EAST WIND 5 TO 10 KNOTS. PATCHY DENSE FOG EARLY
IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
EAST WIND 5 TO 10 KNOTS. PATCHY FOG AFTER MIDNIGHT.
WAVES 1 TO 2 FEET.
FRIDAY
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING NORTHEAST EARLY
IN THE AFTERNOON, THEN BECOMING WEST LATE IN THE AFTERNOON. RAIN
AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FEET.
FRIDAY NIGHT
WEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS.
CHANCE OF THUNDERSTORMS IN THE EVENING. CHANCE OF RAIN THROUGH
THE NIGHT. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET AFTER
MIDNIGHT. A SMALL CRAFT ADVISORY MAY BE NEEDED.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ150-162200-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
1218 PM CDT THU APR 16 2026
REST OF TODAY
EAST WIND 5 KNOTS RISING TO 10 TO 15 KNOTS LATE.
PATCHY DENSE FOG. WAVES 1 FOOT OR LESS.
TONIGHT
EAST WIND 10 TO 15 KNOTS. PATCHY FOG. WAVES 1 TO
2 FEET.
FRIDAY
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING NORTHEAST 10 TO
15 KNOTS EARLY IN THE AFTERNOON, THEN BECOMING WEST 5 TO 10 KNOTS
LATE IN THE AFTERNOON. RAIN AND CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 TO 2 FEET.
FRIDAY NIGHT
WEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS.
CHANCE OF THUNDERSTORMS IN THE EVENING. RAIN LIKELY THROUGH THE
NIGHT. WAVES 1 TO 3 FEET BUILDING TO 3 TO 5 FEET IN THE LATE
EVENING AND OVERNIGHT. A SMALL CRAFT ADVISORY MAY BE NEEDED.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ148-162200-
OAK POINT TO SAXON HARBOR WI-
1218 PM CDT THU APR 16 2026
REST OF TODAY
EAST WIND 5 TO 10 KNOTS. PATCHY DENSE FOG EARLY
IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTH 10 TO
15 KNOTS WITH GUSTS TO AROUND 25 KNOTS EARLY IN THE MORNING.
PARTLY CLOUDY. WAVES 1 TO 2 FEET.
FRIDAY
SOUTH WIND 10 TO 15 KNOTS BECOMING SOUTHEAST EARLY IN
THE AFTERNOON, THEN BECOMING SOUTHWEST LATE IN THE AFTERNOON.
GUSTS UP TO 20 KNOTS. RAIN AND CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 TO 2 FEET.
FRIDAY NIGHT
WEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
EARLY IN THE MORNING. RAIN LIKELY AND CHANCE OF THUNDERSTORMS IN
THE EVENING. 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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