469
FZUS53 KDLH 180707
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
207 AM CDT WED MAR 18 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.
LSZ140-181600-
GRAND PORTAGE TO GRAND MARAIS MN-
207 AM CDT WED MAR 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS LATE IN THE AFTERNOON. CHANCE OF SNOW IN
THE MORNING. SLIGHT CHANCE OF LIGHT FREEZING RAIN THROUGH THE
DAY. SLIGHT CHANCE OF DRIZZLE, LIGHT FREEZING DRIZZLE AND SNOW IN
THE AFTERNOON. WAVES 3 TO 5 FEET.
TONIGHT
WEST WIND 10 TO 15 KNOTS BECOMING NORTHWEST 5 KNOTS
AFTER MIDNIGHT, THEN BECOMING NORTH EARLY IN THE MORNING. SLIGHT
CHANCE OF VERY LIGHT FREEZING DRIZZLE IN THE EVENING. WAVES 2 TO
4 FEET SUBSIDING TO 1 TO 3 FEET IN THE LATE EVENING AND
OVERNIGHT.
THURSDAY
NORTHEAST WIND 5 KNOTS BECOMING SOUTH IN THE
AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING SOUTHEAST
AFTER MIDNIGHT. CHANCE OF SNOW, RAIN AND LIGHT FREEZING RAIN IN
THE EVENING, THEN SLIGHT CHANCE OF RAIN, LIGHT FREEZING RAIN AND
SNOW AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ141-181600-
GRAND MARAIS TO TACONITE HARBOR MN-
207 AM CDT WED MAR 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. CHANCE OF SNOW IN THE MORNING. SLIGHT CHANCE OF LIGHT
FREEZING RAIN AND LIGHT FREEZING DRIZZLE THROUGH THE DAY. WAVES
2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET IN THE AFTERNOON.
TONIGHT
WEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST AFTER
MIDNIGHT. SLIGHT CHANCE OF VERY LIGHT FREEZING DRIZZLE IN THE
EVENING. WAVES 1 TO 2 FEET.
THURSDAY
NORTH WIND 5 KNOTS BECOMING SOUTHEAST LATE IN THE
MORNING, THEN BECOMING SOUTH IN THE AFTERNOON. PARTLY SUNNY.
WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTH WIND 5 KNOTS. CHANCE OF SNOW AND LIGHT
FREEZING RAIN IN THE EVENING. CHANCE OF RAIN THROUGH THE NIGHT.
SLIGHT CHANCE OF LIGHT FREEZING RAIN AFTER MIDNIGHT. WAVES 1 FOOT
OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ142-181600-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
207 AM CDT WED MAR 18 2026
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
UNTIL LATE AFTERNOON. SLIGHT CHANCE OF SNOW EARLY IN THE MORNING.
SLIGHT CHANCE OF LIGHT FREEZING DRIZZLE THROUGH THE DAY. SLIGHT
CHANCE OF DRIZZLE EARLY IN THE AFTERNOON. WAVES 1 TO 3 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST EARLY
IN THE MORNING. SLIGHT CHANCE OF DRIZZLE AND VERY LIGHT FREEZING
DRIZZLE IN THE EVENING. WAVES 1 TO 2 FEET.
THURSDAY
NORTH WIND 5 KNOTS BECOMING SOUTHEAST LATE IN THE
MORNING, THEN BECOMING SOUTH IN THE AFTERNOON. PARTLY SUNNY.
WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTH WIND 5 KNOTS BECOMING SOUTHWEST EARLY IN
THE MORNING. SLIGHT CHANCE OF RAIN. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ143-181600-
SILVER BAY HARBOR TO TWO HARBORS MN-
207 AM CDT WED MAR 18 2026
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
UNTIL LATE AFTERNOON. SLIGHT CHANCE OF SNOW AND LIGHT FREEZING
RAIN EARLY IN THE MORNING. SLIGHT CHANCE OF LIGHT FREEZING
DRIZZLE UNTIL LATE AFTERNOON. SLIGHT CHANCE OF DRIZZLE IN THE
AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST EARLY
IN THE MORNING. SLIGHT CHANCE OF DRIZZLE THROUGH THE NIGHT.
SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
THURSDAY
NORTH WIND 5 KNOTS BECOMING SOUTH IN THE AFTERNOON.
PARTLY SUNNY. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTHWEST WIND 5 KNOTS. SLIGHT CHANCE OF RAIN
IN THE EVENING. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ144-181600-
TWO HARBORS TO DULUTH MN-
207 AM CDT WED MAR 18 2026
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
UNTIL LATE AFTERNOON. SLIGHT CHANCE OF LIGHT FREEZING RAIN AND
SNOW EARLY IN THE MORNING. SLIGHT CHANCE OF VERY LIGHT FREEZING
DRIZZLE UNTIL LATE AFTERNOON. SLIGHT CHANCE OF DRIZZLE IN THE
AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST EARLY
IN THE MORNING. CHANCE OF RAIN AND SLIGHT CHANCE OF DRIZZLE IN
THE EVENING, THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
THURSDAY
NORTH WIND 5 KNOTS BECOMING SOUTH IN THE AFTERNOON.
PARTLY SUNNY. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY.
WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ145-181600-
DULUTH MN TO PORT WING WI-
207 AM CDT WED MAR 18 2026
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SLIGHT CHANCE OF LIGHT FREEZING RAIN AND SNOW EARLY IN
THE MORNING. SLIGHT CHANCE OF VERY LIGHT FREEZING DRIZZLE UNTIL
LATE AFTERNOON. SLIGHT CHANCE OF DRIZZLE IN THE AFTERNOON. WAVES
1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST EARLY
IN THE MORNING. CHANCE OF DRIZZLE IN THE EVENING. CHANCE OF RAIN
THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
THURSDAY
NORTH WIND 5 KNOTS BECOMING WEST EARLY IN THE
AFTERNOON, THEN BECOMING SOUTH LATE IN THE AFTERNOON. PARTLY
SUNNY. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY.
WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ146-181600-
PORT WING TO SAND ISLAND WI-
207 AM CDT WED MAR 18 2026
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SLIGHT CHANCE OF SNOW EARLY IN THE MORNING. SLIGHT
CHANCE OF LIGHT FREEZING DRIZZLE UNTIL LATE AFTERNOON. SLIGHT
CHANCE OF DRIZZLE IN THE AFTERNOON. WAVES 1 TO 3 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST EARLY
IN THE MORNING. SLIGHT CHANCE OF DRIZZLE IN THE EVENING. SLIGHT
CHANCE OF RAIN THROUGH THE NIGHT. WAVES 1 TO 2 FEET.
THURSDAY
NORTH WIND 5 KNOTS BECOMING SOUTHWEST IN THE
AFTERNOON. PARTLY SUNNY. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTHWEST WIND 5 KNOTS. SLIGHT CHANCE OF RAIN.
WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ147-181600-
SAND ISLAND TO BAYFIELD WI-
207 AM CDT WED MAR 18 2026
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SLIGHT CHANCE OF SNOW EARLY IN THE MORNING. SLIGHT
CHANCE OF LIGHT FREEZING DRIZZLE UNTIL LATE AFTERNOON. WAVES 1 TO
2 FEET.
TONIGHT
WEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST EARLY IN
THE MORNING. SLIGHT CHANCE OF RAIN THROUGH THE NIGHT. WAVES 1 TO
2 FEET.
THURSDAY
NORTH WIND 5 KNOTS BECOMING NORTHEAST LATE IN THE
MORNING, THEN BECOMING SOUTH IN THE AFTERNOON. PARTLY SUNNY.
WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTH WIND 5 KNOTS BECOMING SOUTHWEST AFTER
MIDNIGHT. SLIGHT CHANCE OF RAIN. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ150-181600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
207 AM CDT WED MAR 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS IN THE LATE MORNING AND AFTERNOON. SLIGHT
CHANCE OF SNOW EARLY IN THE MORNING. SLIGHT CHANCE OF VERY LIGHT
FREEZING DRIZZLE THROUGH THE DAY. WAVES 1 TO 3 FEET.
TONIGHT
WEST WIND 10 TO 15 KNOTS BECOMING NORTHWEST 5 KNOTS
EARLY IN THE MORNING. SLIGHT CHANCE OF RAIN AND SNOW IN THE
EVENING. WAVES 1 TO 2 FEET.
THURSDAY
NORTH WIND 5 TO 10 KNOTS BECOMING NORTHEAST LATE IN
THE MORNING, THEN BECOMING SOUTHEAST IN THE AFTERNOON. PARTLY
SUNNY. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING SOUTHWEST
EARLY IN THE MORNING. SLIGHT CHANCE OF RAIN. WAVES 1 FOOT OR
LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ148-181600-
OAK POINT TO SAXON HARBOR WI-
207 AM CDT WED MAR 18 2026
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
SLIGHT CHANCE OF SNOW EARLY IN THE MORNING. SLIGHT CHANCE OF VERY
LIGHT FREEZING DRIZZLE UNTIL LATE AFTERNOON. SLIGHT CHANCE OF
DRIZZLE IN THE AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING WEST EARLY IN
THE MORNING. CHANCE OF RAIN AND SLIGHT CHANCE OF DRIZZLE IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. WAVES 1 FOOT
OR LESS.
THURSDAY
NORTH WIND 5 KNOTS BECOMING NORTHEAST LATE IN THE
MORNING, THEN BECOMING SOUTH IN THE AFTERNOON. PARTLY SUNNY.
WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING SOUTHWEST
EARLY IN THE MORNING. SLIGHT CHANCE OF RAIN. WAVES 1 FOOT OR
LESS.
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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