135
FZUS53 KDLH 181808
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
107 PM 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.
LSZ140-182200-
GRAND PORTAGE TO GRAND MARAIS MN-
107 PM CDT WED MAR 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON
REST OF TODAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS. SLIGHT CHANCE OF SNOW EARLY IN THE AFTERNOON.
SLIGHT CHANCE OF LIGHT FREEZING DRIZZLE THROUGH THE DAY. SLIGHT
CHANCE OF DRIZZLE LATE. WAVES 2 TO 4 FEET.
TONIGHT
WEST WIND 10 TO 15 KNOTS BECOMING NORTHWEST 5 TO
10 KNOTS AFTER MIDNIGHT. SLIGHT CHANCE OF VERY LIGHT FREEZING
DRIZZLE IN THE EVENING. WAVES 1 TO 3 FEET.
THURSDAY
NORTH WIND 5 TO 10 KNOTS BECOMING NORTHWEST LATE IN
THE MORNING, THEN BECOMING SOUTHWEST IN THE AFTERNOON. MOSTLY
SUNNY. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING SOUTHEAST IN
THE LATE EVENING AND OVERNIGHT. CHANCE OF SNOW AND LIGHT FREEZING
RAIN IN THE EVENING. CHANCE OF RAIN THROUGH THE NIGHT. SLIGHT
CHANCE OF LIGHT FREEZING RAIN AND SNOW AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ141-182200-
GRAND MARAIS TO TACONITE HARBOR MN-
107 PM CDT WED MAR 18 2026
REST OF TODAY
SOUTHWEST WIND 10 TO 15 KNOTS. SLIGHT CHANCE OF
DRIZZLE AND LIGHT FREEZING DRIZZLE THROUGH THE DAY. WAVES 1 TO
3 FEET.
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 SOUTHWEST IN THE LATE
MORNING AND AFTERNOON. SLIGHT CHANCE OF LIGHT FREEZING RAIN IN
THE AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTH WIND 5 KNOTS BECOMING SOUTHWEST EARLY IN
THE MORNING. CHANCE OF 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.
LSZ142-182200-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
107 PM CDT WED MAR 18 2026
REST OF TODAY
SOUTHWEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
DRIZZLE AND VERY LIGHT FREEZING DRIZZLE THROUGH THE DAY. WAVES
1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 5 KNOTS BECOMING NORTHWEST AFTER
MIDNIGHT. SLIGHT CHANCE OF DRIZZLE AND LIGHT FREEZING DRIZZLE IN
THE EVENING. WAVES 1 TO 2 FEET.
THURSDAY
NORTH WIND 5 KNOTS BECOMING EAST LATE IN THE MORNING,
THEN BECOMING SOUTH IN THE AFTERNOON. PARTLY SUNNY. WAVES 1 FOOT
OR LESS.
THURSDAY NIGHT
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST AFTER
MIDNIGHT. SLIGHT CHANCE OF RAIN THROUGH THE NIGHT. WAVES 1 FOOT
OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ143-182200-
SILVER BAY HARBOR TO TWO HARBORS MN-
107 PM CDT WED MAR 18 2026
REST OF TODAY
SOUTHWEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
DRIZZLE AND VERY LIGHT FREEZING DRIZZLE THROUGH THE DAY. WAVES
1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 5 KNOTS BECOMING NORTH EARLY IN THE
MORNING. SLIGHT CHANCE OF DRIZZLE AND LIGHT FREEZING DRIZZLE
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
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST EARLY
IN THE MORNING. SLIGHT CHANCE OF RAIN IN THE EVENING. WAVES
1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ144-182200-
TWO HARBORS TO DULUTH MN-
107 PM CDT WED MAR 18 2026
REST OF TODAY
SOUTHWEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
VERY LIGHT FREEZING DRIZZLE EARLY IN THE AFTERNOON. SLIGHT CHANCE
OF DRIZZLE THROUGH THE DAY. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST EARLY
IN THE MORNING. SLIGHT CHANCE OF RAIN AND DRIZZLE IN THE EVENING.
WAVES 1 FOOT OR LESS.
THURSDAY
NORTH WIND 5 KNOTS BECOMING NORTHEAST LATE IN THE
MORNING, THEN BECOMING SOUTHEAST IN THE AFTERNOON. PARTLY SUNNY.
WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST
EARLY IN THE MORNING. MOSTLY CLOUDY. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ145-182200-
DULUTH MN TO PORT WING WI-
107 PM CDT WED MAR 18 2026
REST OF TODAY
SOUTHWEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
VERY LIGHT FREEZING DRIZZLE EARLY IN THE AFTERNOON. SLIGHT CHANCE
OF DRIZZLE THROUGH THE DAY. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST EARLY
IN THE MORNING. CHANCE OF DRIZZLE AND SLIGHT CHANCE OF RAIN IN
THE EVENING. WAVES 1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 5 KNOTS BECOMING SOUTHEAST LATE IN THE
AFTERNOON. PARTLY SUNNY. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING SOUTHWEST
10 TO 15 KNOTS IN THE LATE EVENING AND OVERNIGHT. MOSTLY CLOUDY.
WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ146-182200-
PORT WING TO SAND ISLAND WI-
107 PM CDT WED MAR 18 2026
REST OF TODAY
SOUTHWEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
DRIZZLE AND VERY LIGHT FREEZING DRIZZLE. WAVES 1 TO 3 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST EARLY
IN THE MORNING. SLIGHT CHANCE OF RAIN AND DRIZZLE IN THE EVENING.
WAVES 1 TO 2 FEET.
THURSDAY
NORTH WIND 5 KNOTS BECOMING EAST LATE IN THE MORNING,
THEN BECOMING SOUTHWEST IN THE AFTERNOON. PARTLY SUNNY. WAVES
1 FOOT OR LESS.
THURSDAY NIGHT
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST EARLY
IN THE MORNING. SLIGHT CHANCE OF RAIN IN THE EVENING. WAVES
1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ147-182200-
SAND ISLAND TO BAYFIELD WI-
107 PM CDT WED MAR 18 2026
REST OF TODAY
SOUTHWEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
DRIZZLE AND VERY LIGHT FREEZING DRIZZLE EARLY IN THE AFTERNOON.
WAVES 1 TO 3 FEET.
TONIGHT
SOUTHWEST WIND 5 KNOTS BECOMING NORTHWEST EARLY IN THE
MORNING. SLIGHT CHANCE OF RAIN IN THE EVENING. WAVES 1 TO 2 FEET.
THURSDAY
NORTH WIND 5 KNOTS BECOMING SOUTHEAST 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.
LSZ150-182200-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
107 PM CDT WED MAR 18 2026
REST OF TODAY
SOUTHWEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
DRIZZLE EARLY IN THE AFTERNOON. SLIGHT CHANCE OF VERY LIGHT
FREEZING DRIZZLE THROUGH THE DAY. WAVES 1 TO 3 FEET.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTH EARLY IN
THE MORNING. SLIGHT CHANCE OF RAIN IN THE EVENING. WAVES 1 TO
2 FEET.
THURSDAY
NORTHEAST WIND 5 KNOTS BECOMING SOUTHEAST IN THE
AFTERNOON. PARTLY SUNNY. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING SOUTHWEST
AFTER MIDNIGHT. SLIGHT CHANCE OF RAIN. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ148-182200-
OAK POINT TO SAXON HARBOR WI-
107 PM CDT WED MAR 18 2026
REST OF TODAY
SOUTHWEST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
VERY LIGHT FREEZING DRIZZLE EARLY IN THE AFTERNOON. SLIGHT CHANCE
OF DRIZZLE THROUGH THE DAY. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST EARLY
IN THE MORNING. SLIGHT CHANCE OF DRIZZLE AND LIGHT FREEZING
DRIZZLE IN THE EVENING. SLIGHT CHANCE OF RAIN THROUGH THE NIGHT.
WAVES 1 FOOT OR LESS.
THURSDAY
NORTH WIND 5 KNOTS BECOMING SOUTHEAST LATE IN THE
AFTERNOON. PARTLY SUNNY. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST IN
THE LATE EVENING AND OVERNIGHT. MOSTLY CLOUDY. 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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