250
FZUS53 KDLH 190448
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
1147 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.
LSZ140-191000-
GRAND PORTAGE TO GRAND MARAIS MN-
1147 PM CDT WED MAR 18 2026
REST OF TONIGHT
SOUTH WIND 5 KNOTS BECOMING NORTHWEST AFTER
MIDNIGHT. MOSTLY CLOUDY LATE IN THE EVENING THEN BECOMING PARTLY
CLOUDY. WAVES 1 FOOT OR LESS.
THURSDAY
NORTH WIND 5 TO 10 KNOTS BECOMING SOUTHEAST IN THE
AFTERNOON. CHANCE OF SNOW IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING WEST
AFTER MIDNIGHT. PATCHY FOG THROUGH THE NIGHT. 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.
FRIDAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE
AFTERNOON. PATCHY FOG IN THE MORNING. . WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ141-191000-
GRAND MARAIS TO TACONITE HARBOR MN-
1147 PM CDT WED MAR 18 2026
REST OF TONIGHT
SOUTHWEST WIND 5 KNOTS BECOMING NORTHWEST
AFTER MIDNIGHT. SLIGHT CHANCE OF LIGHT FREEZING DRIZZLE AND SNOW
LATE IN THE EVENING. WAVES 1 FOOT OR LESS.
THURSDAY
NORTH WIND 5 KNOTS BECOMING SOUTHEAST IN THE
AFTERNOON. SLIGHT CHANCE OF SNOW IN THE AFTERNOON. WAVES 1 FOOT
OR LESS.
THURSDAY NIGHT
EAST WIND 5 TO 10 KNOTS BECOMING NORTHEAST LATE
IN THE EVENING, THEN BECOMING SOUTHWEST AFTER MIDNIGHT. 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. PATCHY FOG AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
FRIDAY
SOUTHWEST WIND 5 TO 10 KNOTS. PATCHY FOG IN THE
MORNING. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ142-191000-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
1147 PM CDT WED MAR 18 2026
REST OF TONIGHT
SOUTHWEST WIND 5 KNOTS BECOMING NORTH AFTER
MIDNIGHT. SLIGHT CHANCE OF RAIN AND DRIZZLE LATE IN THE EVENING.
SLIGHT CHANCE OF LIGHT FREEZING DRIZZLE AND SNOW LATE IN THE
EVENING. WAVES 1 FOOT OR LESS.
THURSDAY
NORTH WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
SLIGHT CHANCE OF RAIN IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
EAST WIND 5 KNOTS BECOMING WEST LATE IN THE
EVENING, THEN BECOMING SOUTHWEST AFTER MIDNIGHT. PATCHY FOG
THROUGH THE NIGHT. SLIGHT CHANCE OF LIGHT FREEZING RAIN IN THE
EVENING. SLIGHT CHANCE OF RAIN THROUGH THE NIGHT. WAVES 1 FOOT OR
LESS.
FRIDAY
SOUTHWEST WIND 5 TO 10 KNOTS. PATCHY FOG IN THE
MORNING. WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ143-191000-
SILVER BAY HARBOR TO TWO HARBORS MN-
1147 PM CDT WED MAR 18 2026
REST OF TONIGHT
NORTH WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
RAIN AND LIGHT FREEZING DRIZZLE LATE IN THE EVENING. SLIGHT
CHANCE OF SNOW AFTER MIDNIGHT. WAVES 1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 5 TO 10 KNOTS BECOMING EAST IN THE
LATE MORNING AND AFTERNOON. PARTLY SUNNY. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING NORTHWEST
LATE IN THE EVENING, THEN BECOMING SOUTHWEST AFTER MIDNIGHT.
SLIGHT CHANCE OF RAIN AND LIGHT FREEZING RAIN IN THE EVENING.
PATCHY FOG THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
FRIDAY
SOUTHWEST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES
1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ144-191000-
TWO HARBORS TO DULUTH MN-
1147 PM CDT WED MAR 18 2026
REST OF TONIGHT
NORTHEAST WIND 5 KNOTS BECOMING NORTHWEST
AFTER MIDNIGHT, THEN BECOMING NORTH TOWARD DAYBREAK. SLIGHT
CHANCE OF RAIN, DRIZZLE AND SNOW LATE IN THE EVENING. WAVES
1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES
1 FOOT OR LESS.
THURSDAY NIGHT
EAST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST IN
THE LATE EVENING AND EARLY MORNING, THEN BECOMING SOUTHWEST 5 TO
10 KNOTS EARLY IN THE MORNING. PATCHY FOG THROUGH THE NIGHT.
WAVES 1 FOOT OR LESS.
FRIDAY
WEST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES 1 FOOT OR
LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ145-191000-
DULUTH MN TO PORT WING WI-
1147 PM CDT WED MAR 18 2026
REST OF TONIGHT
EAST WIND 5 KNOTS BECOMING WEST AFTER
MIDNIGHT, THEN BECOMING NORTH TOWARD DAYBREAK. SLIGHT CHANCE OF
SNOW LATE IN THE EVENING. SLIGHT CHANCE OF RAIN AND DRIZZLE LATE
IN THE EVENING. SLIGHT CHANCE OF LIGHT FREEZING DRIZZLE AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
THURSDAY
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES
1 FOOT OR LESS.
THURSDAY NIGHT
EAST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST IN
THE LATE EVENING AND OVERNIGHT. PATCHY FOG THROUGH THE NIGHT.
WAVES 1 FOOT OR LESS.
FRIDAY
WEST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES 1 FOOT OR
LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ146-191000-
PORT WING TO SAND ISLAND WI-
1147 PM CDT WED MAR 18 2026
REST OF TONIGHT
SOUTHEAST WIND 5 KNOTS BECOMING WEST AFTER
MIDNIGHT, THEN BECOMING NORTHEAST TOWARD DAYBREAK. SLIGHT CHANCE
OF RAIN LATE IN THE EVENING. WAVES 1 FOOT OR LESS.
THURSDAY
EAST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES 1 FOOT
OR LESS.
THURSDAY NIGHT
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST 10 TO
15 KNOTS IN THE LATE EVENING AND OVERNIGHT. SLIGHT CHANCE OF RAIN
IN THE EVENING. PATCHY FOG THROUGH THE NIGHT. WAVES 1 FOOT OR
LESS.
FRIDAY
WEST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES 1 FOOT OR
LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ147-191000-
SAND ISLAND TO BAYFIELD WI-
1147 PM CDT WED MAR 18 2026
REST OF TONIGHT
SOUTHEAST WIND 5 KNOTS BECOMING WEST AFTER
MIDNIGHT, THEN BECOMING NORTH TOWARD DAYBREAK. SLIGHT CHANCE OF
RAIN AND LIGHT FREEZING DRIZZLE LATE IN THE EVENING. WAVES 1 FOOT
OR LESS.
THURSDAY
NORTHEAST WIND 5 TO 10 KNOTS BECOMING EAST IN THE
LATE MORNING AND AFTERNOON. PARTLY SUNNY. WAVES 1 FOOT OR LESS.
THURSDAY NIGHT
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST IN
THE LATE EVENING AND EARLY MORNING, THEN BECOMING WEST 10 TO
15 KNOTS EARLY IN THE MORNING. PATCHY FOG THROUGH THE NIGHT.
SLIGHT CHANCE OF RAIN THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
FRIDAY
WEST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES 1 FOOT OR
LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ150-191000-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
1147 PM CDT WED MAR 18 2026
REST OF TONIGHT
SOUTH WIND 5 KNOTS BECOMING NORTHWEST AFTER
MIDNIGHT, THEN BECOMING NORTH TOWARD DAYBREAK. SLIGHT CHANCE OF
RAIN LATE IN THE EVENING. WAVES 1 FOOT OR LESS.
THURSDAY
EAST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES 1 FOOT
OR LESS.
THURSDAY NIGHT
SOUTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST
IN THE LATE EVENING AND EARLY MORNING, THEN BECOMING WEST 10 TO
15 KNOTS EARLY IN THE MORNING. PATCHY FOG THROUGH THE NIGHT.
SLIGHT CHANCE OF LIGHT FREEZING RAIN IN THE EVENING. SLIGHT
CHANCE OF RAIN THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
FRIDAY
WEST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES 1 FOOT OR
LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ148-191000-
OAK POINT TO SAXON HARBOR WI-
1147 PM CDT WED MAR 18 2026
REST OF TONIGHT
NORTHWEST WIND 5 KNOTS BECOMING WEST AFTER
MIDNIGHT, THEN BECOMING NORTH TOWARD DAYBREAK. SLIGHT CHANCE OF
DRIZZLE AND SNOW LATE IN THE EVENING. SLIGHT CHANCE OF RAIN LATE
IN THE EVENING. WAVES 1 FOOT OR LESS.
THURSDAY
EAST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES 1 FOOT
OR LESS.
THURSDAY NIGHT
SOUTH WIND 5 KNOTS BECOMING SOUTHWEST WITH
GUSTS TO AROUND 20 KNOTS IN THE LATE EVENING AND OVERNIGHT.
PATCHY FOG THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
FRIDAY
WEST WIND 5 TO 10 KNOTS. PARTLY SUNNY. 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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