539
FZUS53 KDLH 171358
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
858 AM CDT TUE MAR 17 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.
LSZ140-172200-
GRAND PORTAGE TO GRAND MARAIS MN-
858 AM CDT TUE MAR 17 2026
REST OF TODAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST
10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE AFTERNOON.
MOSTLY SUNNY EARLY IN THE MORNING THEN BECOMING MOSTLY CLOUDY.
WAVES 1 TO 2 FEET.
TONIGHT
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 30 KNOTS. CHANCE OF SNOW THROUGH THE NIGHT. WAVES
1 TO 2 FEET BUILDING TO 4 TO 6 FEET IN THE LATE EVENING AND
OVERNIGHT. WAVES OCCASIONALLY TO 7 FEET. A SMALL CRAFT ADVISORY
MAY BE NEEDED.
WEDNESDAY
SOUTHWEST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS LATE IN THE AFTERNOON. SLIGHT CHANCE OF
SNOW THROUGH THE DAY. WAVES 4 TO 6 FEET. WAVES OCCASIONALLY TO
7 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
WEDNESDAY NIGHT
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHWEST 5 TO 10 KNOTS AFTER MIDNIGHT. SLIGHT
CHANCE OF RAIN AND SNOW IN THE EVENING. SLIGHT CHANCE OF LIGHT
FREEZING RAIN THROUGH THE NIGHT. WAVES 1 TO 3 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ141-172200-
GRAND MARAIS TO TACONITE HARBOR MN-
858 AM CDT TUE MAR 17 2026
REST OF TODAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE
AFTERNOON. SUNNY EARLY IN THE MORNING THEN BECOMING PARTLY SUNNY.
WAVES 1 FOOT OR LESS.
TONIGHT
SOUTH WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
CHANCE OF SNOW. WAVES 1 TO 2 FEET BUILDING TO 2 TO 4 FEET AFTER
MIDNIGHT.
WEDNESDAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SLIGHT CHANCE OF SNOW IN THE MORNING. WAVES 1 TO
3 FEET.
WEDNESDAY NIGHT
WEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST
EARLY IN THE MORNING. SLIGHT CHANCE OF RAIN. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ142-172200-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
858 AM CDT TUE MAR 17 2026
REST OF TODAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE
AFTERNOON. SUNNY EARLY IN THE MORNING THEN BECOMING PARTLY SUNNY.
WAVES 1 FOOT OR LESS.
TONIGHT
SOUTH WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN THE
LATE EVENING AND OVERNIGHT. CHANCE OF SNOW. WAVES 1 TO 2 FEET.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES
1 TO 2 FEET.
WEDNESDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING
NORTHWEST EARLY IN THE MORNING. SLIGHT CHANCE OF RAIN. WAVES
1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ143-172200-
SILVER BAY HARBOR TO TWO HARBORS MN-
858 AM CDT TUE MAR 17 2026
REST OF TODAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE
AFTERNOON. SLIGHT CHANCE OF SNOW LATE. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTH WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN THE
LATE EVENING AND OVERNIGHT. CHANCE OF SNOW. WAVES 1 TO 3 FEET.
WEDNESDAY
SOUTHWEST WIND 10 TO 15 KNOTS. SLIGHT CHANCE OF
LIGHT FREEZING DRIZZLE IN THE MORNING. WAVES 1 TO 2 FEET.
WEDNESDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING
NORTHWEST EARLY IN THE MORNING. SLIGHT CHANCE OF RAIN. WAVES
1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ144-172200-
TWO HARBORS TO DULUTH MN-
858 AM CDT TUE MAR 17 2026
REST OF TODAY
WEST WIND 5 KNOTS BECOMING SOUTHWEST IN THE
AFTERNOON. SLIGHT CHANCE OF SNOW LATE. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. SNOW LIKELY IN THE EVENING, THEN CHANCE OF SNOW AND
SLIGHT CHANCE OF LIGHT FREEZING DRIZZLE AFTER MIDNIGHT. WAVES
1 TO 3 FEET.
WEDNESDAY
SOUTHWEST WIND 10 TO 15 KNOTS EASING TO 5 TO
10 KNOTS IN THE AFTERNOON. SLIGHT CHANCE OF LIGHT FREEZING
DRIZZLE IN THE MORNING. WAVES 1 TO 2 FEET.
WEDNESDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING
NORTHWEST EARLY IN THE MORNING. SLIGHT CHANCE OF RAIN. WAVES
1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ145-172200-
DULUTH MN TO PORT WING WI-
858 AM CDT TUE MAR 17 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST IN
THE AFTERNOON. SLIGHT CHANCE OF SNOW LATE. WAVES 1 FOOT OR LESS.
TONIGHT
SOUTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. CHANCE OF SNOW THROUGH THE NIGHT. SLIGHT CHANCE OF
LIGHT FREEZING DRIZZLE AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
WEDNESDAY
SOUTHWEST WIND 10 TO 15 KNOTS. SLIGHT CHANCE OF
LIGHT FREEZING DRIZZLE IN THE MORNING. WAVES 1 TO 2 FEET.
WEDNESDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING
NORTHWEST EARLY IN THE MORNING. SLIGHT CHANCE OF RAIN. WAVES
1 FOOT OR LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ146-172200-
PORT WING TO SAND ISLAND WI-
858 AM CDT TUE MAR 17 2026
REST OF TODAY
NORTH WIND 5 KNOTS BECOMING SOUTHWEST IN THE
AFTERNOON. PARTLY SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
SOUTH WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN THE
LATE EVENING AND OVERNIGHT. CHANCE OF SNOW THROUGH THE NIGHT.
SLIGHT CHANCE OF LIGHT FREEZING DRIZZLE AFTER MIDNIGHT. WAVES
1 TO 2 FEET.
WEDNESDAY
SOUTHWEST WIND 10 TO 15 KNOTS. SLIGHT CHANCE OF
LIGHT FREEZING DRIZZLE IN THE MORNING. WAVES 1 TO 2 FEET.
WEDNESDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING
NORTHWEST EARLY IN THE MORNING. SLIGHT CHANCE OF RAIN THROUGH THE
NIGHT. SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ147-172200-
SAND ISLAND TO BAYFIELD WI-
858 AM CDT TUE MAR 17 2026
REST OF TODAY
NORTH WIND 5 KNOTS BECOMING SOUTHWEST IN THE
AFTERNOON. PARTLY SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
SOUTH WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS AFTER
MIDNIGHT. CHANCE OF SNOW THROUGH THE NIGHT. WAVES 1 FOOT OR LESS.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES
1 TO 2 FEET.
WEDNESDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING
NORTHWEST EARLY IN THE MORNING. SLIGHT CHANCE OF RAIN THROUGH THE
NIGHT. SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. WAVES 1 FOOT OR
LESS.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ150-172200-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
858 AM CDT TUE MAR 17 2026
REST OF TODAY
NORTH WIND 5 TO 10 KNOTS BECOMING SOUTHWEST IN
THE AFTERNOON. PARTLY SUNNY. WAVES 1 TO 3 FEET.
TONIGHT
SOUTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. CHANCE OF SNOW. WAVES 1 TO 2 FEET BUILDING TO 1 TO
3 FEET AFTER MIDNIGHT.
WEDNESDAY
SOUTHWEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
UNTIL LATE AFTERNOON. MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
WEDNESDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING
NORTHWEST EARLY IN THE MORNING. SLIGHT CHANCE OF RAIN THROUGH THE
NIGHT. SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ148-172200-
OAK POINT TO SAXON HARBOR WI-
858 AM CDT TUE MAR 17 2026
REST OF TODAY
NORTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST
IN THE AFTERNOON. SLIGHT CHANCE OF SNOW EARLY IN THE MORNING.
WAVES 1 TO 3 FEET.
TONIGHT
SOUTH WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN THE
LATE EVENING AND OVERNIGHT. CHANCE OF SNOW IN THE EVENING. SLIGHT
CHANCE OF SNOW AFTER MIDNIGHT. WAVES 1 TO 2 FEET.
WEDNESDAY
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS EASING TO 5 TO 10 KNOTS IN THE AFTERNOON. MOSTLY CLOUDY.
WAVES 1 TO 2 FEET.
WEDNESDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING WEST
EARLY IN THE MORNING. SLIGHT CHANCE OF RAIN THROUGH THE NIGHT.
SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. 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
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page