310
FZUS53 KDLH 240237
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
937 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.
LSZ140-241000-
GRAND PORTAGE TO GRAND MARAIS MN-
937 PM CDT MON MAR 23 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM CDT TUESDAY
REST OF TONIGHT
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO
25 KNOTS INCREASING TO 30 KNOTS AFTER MIDNIGHT, THEN DECREASING
TO 25 KNOTS TOWARD DAYBREAK. SLIGHT CHANCE OF SNOW LATE IN THE
EVENING, THEN CHANCE OF SNOW AFTER MIDNIGHT. SLIGHT CHANCE OF
SNOW TOWARD DAYBREAK. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET
AFTER MIDNIGHT.
TUESDAY
NORTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 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. A SMALL CRAFT
ADVISORY MAY BE NEEDED.
TUESDAY NIGHT
EAST WIND 10 TO 15 KNOTS. PATCHY FOG AFTER
MIDNIGHT. SLIGHT CHANCE OF LIGHT FREEZING RAIN AND SNOW AFTER
MIDNIGHT. WAVES 1 TO 3 FEET.
WEDNESDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
IN THE MORNING. AREAS OF FOG IN THE MORNING. CHANCE OF LIGHT
FREEZING RAIN AND SNOW THROUGH THE DAY. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ141-241000-
GRAND MARAIS TO TACONITE HARBOR MN-
937 PM CDT MON MAR 23 2026
REST OF TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS IN THE LATE EVENING AND EARLY MORNING. CHANCE OF SNOW
LATE IN THE EVENING, THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT.
WAVES 1 TO 2 FEET BUILDING TO 1 TO 3 FEET AFTER MIDNIGHT.
TUESDAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTH LATE IN
THE MORNING, THEN BECOMING SOUTHEAST IN THE AFTERNOON. MOSTLY
SUNNY. WAVES 1 TO 3 FEET.
TUESDAY NIGHT
EAST WIND 10 TO 15 KNOTS. SLIGHT CHANCE OF LIGHT
FREEZING RAIN AND SNOW AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
WEDNESDAY
EAST WIND 10 TO 15 KNOTS. PATCHY DENSE FOG IN THE
MORNING. CHANCE OF LIGHT FREEZING RAIN IN THE MORNING. SLIGHT
CHANCE OF SNOW THROUGH THE DAY. SLIGHT CHANCE OF LIGHT FREEZING
RAIN IN THE AFTERNOON. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ142-241000-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
937 PM CDT MON MAR 23 2026
REST OF TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS IN THE LATE EVENING AND EARLY MORNING. CHANCE OF SNOW
LATE IN THE EVENING, THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT.
WAVES 1 TO 3 FEET.
TUESDAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING EAST IN THE
AFTERNOON. PARTLY SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. SLIGHT CHANCE OF
LIGHT FREEZING RAIN AND SNOW AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY FOG IN THE
MORNING. SLIGHT CHANCE OF SNOW THROUGH THE DAY. WAVES 1 TO
2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ143-241000-
SILVER BAY HARBOR TO TWO HARBORS MN-
937 PM CDT MON MAR 23 2026
REST OF TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS IN THE LATE EVENING AND EARLY MORNING. CHANCE OF SNOW
LATE IN THE EVENING, THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT.
WAVES 1 TO 3 FEET.
TUESDAY
NORTHWEST WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
PARTLY SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. SLIGHT CHANCE OF LIGHT FREEZING
RAIN AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY FOG IN THE
MORNING. SLIGHT CHANCE OF SNOW IN THE MORNING. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ144-241000-
TWO HARBORS TO DULUTH MN-
937 PM CDT MON MAR 23 2026
REST OF TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS AFTER MIDNIGHT. CHANCE OF SNOW LATE IN THE EVENING, THEN
SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. 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 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
WEDNESDAY
EAST WIND 5 TO 10 KNOTS. PATCHY FOG IN THE MORNING.
WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ145-241000-
DULUTH MN TO PORT WING WI-
937 PM CDT MON MAR 23 2026
REST OF TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS IN THE LATE EVENING AND EARLY MORNING. CHANCE OF SNOW
LATE IN THE EVENING, THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT.
WAVES 1 TO 2 FEET.
TUESDAY
WEST WIND 5 KNOTS BECOMING NORTHEAST IN THE LATE
MORNING AND AFTERNOON. PARTLY SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY FOG IN THE
MORNING. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ146-241000-
PORT WING TO SAND ISLAND WI-
937 PM CDT MON MAR 23 2026
REST OF TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS AFTER MIDNIGHT. SLIGHT CHANCE OF SNOW IN THE LATE
EVENING AND EARLY MORNING. WAVES 1 TO 2 FEET.
TUESDAY
WEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST IN THE LATE
MORNING AND EARLY AFTERNOON, THEN BECOMING EAST LATE IN THE
AFTERNOON. PARTLY SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO
20 KNOTS EARLY IN THE EVENING. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY FOG IN THE
MORNING. SLIGHT CHANCE OF LIGHT FREEZING RAIN AND SNOW IN THE
MORNING. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ147-241000-
SAND ISLAND TO BAYFIELD WI-
937 PM CDT MON MAR 23 2026
REST OF TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO
20 KNOTS AFTER MIDNIGHT. CHANCE OF SNOW LATE IN THE EVENING, THEN
SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
WEST WIND 5 TO 10 KNOTS 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.
WEDNESDAY
NORTHEAST WIND 5 TO 10 KNOTS. PATCHY FOG IN THE
MORNING. SLIGHT CHANCE OF SNOW IN THE MORNING. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ150-241000-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
937 PM CDT MON MAR 23 2026
REST OF TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 25 KNOTS BECOMING SOUTHWEST 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS TOWARD DAYBREAK. CHANCE OF SNOW LATE IN THE
EVENING, THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. WAVES 1 TO
3 FEET.
TUESDAY
WEST WIND 5 TO 10 KNOTS BECOMING EAST 10 TO 15 KNOTS
IN THE AFTERNOON. PARTLY SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
UNTIL EARLY MORNING. SLIGHT CHANCE OF LIGHT FREEZING RAIN AFTER
MIDNIGHT. WAVES 1 TO 3 FEET.
WEDNESDAY
NORTHEAST WIND 10 TO 15 KNOTS. PATCHY FOG IN THE
MORNING. SLIGHT CHANCE OF SNOW IN THE MORNING. WAVES 1 TO 3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ148-241000-
OAK POINT TO SAXON HARBOR WI-
937 PM CDT MON MAR 23 2026
REST OF TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS. CHANCE OF RAIN AND SNOW LATE IN THE EVENING.
SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
TUESDAY
WEST WIND 5 TO 10 KNOTS BECOMING NORTH LATE IN THE
MORNING, THEN BECOMING NORTHEAST 10 TO 15 KNOTS IN THE AFTERNOON.
PARTLY SUNNY. WAVES 1 TO 2 FEET.
TUESDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS BECOMING EAST 5 TO 10 KNOTS EARLY IN THE MORNING.
MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
WEDNESDAY
SOUTHEAST WIND 5 KNOTS BECOMING NORTHEAST IN THE
LATE MORNING AND AFTERNOON. PATCHY FOG IN THE MORNING. 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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