610
FZUS53 KDLH 231822
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
122 PM CDT MON MAR 23 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.
LSZ140-232200-
GRAND PORTAGE TO GRAND MARAIS MN-
122 PM CDT MON MAR 23 2026
REST OF TODAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS LATE. SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
30 KNOTS BECOMING WEST 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS EARLY IN THE MORNING. SLIGHT CHANCE OF SNOW. WAVES 1 TO
3 FEET BUILDING TO 2 TO 4 FEET AFTER MIDNIGHT.
TUESDAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTH LATE IN
THE MORNING, THEN BECOMING EAST IN THE AFTERNOON. MOSTLY SUNNY.
WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET IN THE LATE MORNING
AND AFTERNOON.
TUESDAY NIGHT
EAST WIND 5 TO 10 KNOTS BECOMING NORTHEAST EARLY
IN THE MORNING. SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. WAVES 1 TO
2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ141-232200-
GRAND MARAIS TO TACONITE HARBOR MN-
122 PM CDT MON MAR 23 2026
REST OF TODAY
SOUTHWEST WIND 10 TO 15 KNOTS. SUNNY. WAVES
1 FOOT OR LESS.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS RISING TO 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS
AFTER MIDNIGHT. SLIGHT CHANCE OF SNOW. WAVES 1 TO 3 FEET.
TUESDAY
NORTHWEST WIND 5 KNOTS BECOMING NORTH LATE IN THE
MORNING, THEN BECOMING SOUTHEAST IN THE AFTERNOON. MOSTLY SUNNY.
WAVES 1 TO 2 FEET.
TUESDAY NIGHT
EAST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF SNOW
AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ142-232200-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
122 PM CDT MON MAR 23 2026
REST OF TODAY
SOUTH WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 FOOT OR
LESS.
TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTHWEST 5 TO 10 KNOTS EARLY IN THE MORNING.
SLIGHT CHANCE OF SNOW IN THE EVENING. WAVES 1 TO 2 FEET.
TUESDAY
NORTHWEST WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
PARTLY SUNNY. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 KNOTS. SLIGHT CHANCE OF SNOW
AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ143-232200-
SILVER BAY HARBOR TO TWO HARBORS MN-
122 PM CDT MON MAR 23 2026
REST OF TODAY
SOUTH WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 FOOT OR
LESS.
TONIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING SOUTHWEST WITH GUSTS
TO AROUND 20 KNOTS IN THE LATE EVENING AND OVERNIGHT. SLIGHT
CHANCE OF SNOW IN THE EVENING. WAVES 1 TO 2 FEET.
TUESDAY
NORTHWEST WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
PARTLY SUNNY. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
RAIN AND SNOW AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ144-232200-
TWO HARBORS TO DULUTH MN-
122 PM CDT MON MAR 23 2026
REST OF TODAY
SOUTH WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 FOOT OR
LESS.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS AFTER MIDNIGHT. SLIGHT
CHANCE OF SNOW IN THE EVENING. WAVES 1 TO 2 FEET.
TUESDAY
NORTHWEST WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
MORNING AND AFTERNOON. PARTLY SUNNY. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY.
WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ145-232200-
DULUTH MN TO PORT WING WI-
122 PM CDT MON MAR 23 2026
REST OF TODAY
SOUTH WIND 5 TO 10 KNOTS. SUNNY. WAVES 1 FOOT OR
LESS.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS EASING TO 5 TO 10 KNOTS EARLY IN THE MORNING. SLIGHT
CHANCE OF RAIN AND SNOW IN THE EVENING. WAVES 1 FOOT OR LESS.
TUESDAY
WEST WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
MORNING AND AFTERNOON. PARTLY SUNNY. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY.
WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ146-232200-
PORT WING TO SAND ISLAND WI-
122 PM CDT MON MAR 23 2026
REST OF TODAY
SOUTHWEST WIND 5 KNOTS. SUNNY. WAVES 1 FOOT OR
LESS.
TONIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING SOUTHWEST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS AFTER MIDNIGHT. SLIGHT
CHANCE OF SNOW. WAVES 1 TO 2 FEET.
TUESDAY
WEST WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
MORNING AND AFTERNOON. PARTLY SUNNY. WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY.
WAVES 1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ147-232200-
SAND ISLAND TO BAYFIELD WI-
122 PM CDT MON MAR 23 2026
REST OF TODAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH LATE.
SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING SOUTHWEST WITH GUSTS
TO AROUND 20 KNOTS IN THE LATE EVENING AND OVERNIGHT. SLIGHT
CHANCE OF SNOW. WAVES 1 TO 2 FEET.
TUESDAY
WEST WIND 5 KNOTS BECOMING NORTH LATE IN THE MORNING,
THEN BECOMING EAST IN THE AFTERNOON. PARTLY SUNNY. WAVES 1 TO
2 FEET.
TUESDAY NIGHT
EAST WIND 5 KNOTS. MOSTLY CLOUDY. WAVES 1 FOOT
OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ150-232200-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
122 PM CDT MON MAR 23 2026
REST OF TODAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH LATE.
SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTH WIND 5 TO 10 KNOTS BECOMING SOUTHWEST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE LATE EVENING AND
OVERNIGHT. SLIGHT CHANCE OF SNOW. WAVES 1 TO 2 FEET BUILDING TO
1 TO 3 FEET AFTER MIDNIGHT.
TUESDAY
WEST WIND 5 TO 10 KNOTS BECOMING NORTH LATE IN THE
MORNING, THEN BECOMING EAST IN THE AFTERNOON. PARTLY SUNNY. WAVES
1 TO 2 FEET.
TUESDAY NIGHT
EAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES
1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ148-232200-
OAK POINT TO SAXON HARBOR WI-
122 PM CDT MON MAR 23 2026
REST OF TODAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTHEAST LATE.
SUNNY. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING SOUTHWEST WITH GUSTS TO AROUND 20 KNOTS AFTER
MIDNIGHT. SLIGHT CHANCE OF SNOW THROUGH THE NIGHT. SLIGHT CHANCE
OF RAIN AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
WEST WIND 5 TO 10 KNOTS BECOMING NORTH LATE IN THE
MORNING, THEN BECOMING NORTHEAST IN THE AFTERNOON. PARTLY SUNNY.
WAVES 1 FOOT OR LESS.
TUESDAY NIGHT
EAST WIND 5 TO 10 KNOTS BECOMING SOUTHEAST AFTER
MIDNIGHT. MOSTLY CLOUDY. WAVES 1 TO 2 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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