507
FZUS53 KDLH 290523
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
1222 AM CDT SUN MAR 29 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.
LSZ140-291600-
GRAND PORTAGE TO GRAND MARAIS MN-
1223 AM CDT SUN MAR 29 2026
TODAY
NORTHEAST WIND 10 TO 15 KNOTS. MOSTLY CLOUDY. WAVES
1 FOOT OR LESS.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES
1 FOOT OR LESS.
MONDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
LATE IN THE AFTERNOON. SLIGHT CHANCE OF SNOW AND LIGHT FREEZING
RAIN IN THE AFTERNOON. WAVES 1 FOOT OR LESS BUILDING TO 1 TO
3 FEET LATE IN THE AFTERNOON.
MONDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS. SLIGHT CHANCE OF SNOW IN THE EVENING. CHANCE OF
LIGHT FREEZING RAIN THROUGH THE NIGHT. CHANCE OF SNOW AFTER
MIDNIGHT. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 2 FEET IN THE LATE
EVENING AND OVERNIGHT.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ141-291600-
GRAND MARAIS TO TACONITE HARBOR MN-
1223 AM CDT SUN MAR 29 2026
TODAY
NORTHEAST WIND 10 TO 15 KNOTS. MOSTLY CLOUDY. WAVES 1 TO
3 FEET.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING NORTH AFTER
MIDNIGHT. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS BECOMING EAST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE AFTERNOON. SLIGHT
CHANCE OF SNOW AND LIGHT FREEZING RAIN IN THE AFTERNOON. WAVES
1 TO 2 FEET BUILDING TO 2 TO 4 FEET LATE IN THE AFTERNOON.
MONDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS. SLIGHT CHANCE OF RAIN AND SNOW IN THE EVENING.
SLIGHT CHANCE OF LIGHT FREEZING RAIN THROUGH THE NIGHT. CHANCE OF
SNOW AND RAIN AFTER MIDNIGHT. WAVES 3 TO 5 FEET. A SMALL CRAFT
ADVISORY MAY BE NEEDED.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ142-291600-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
1223 AM CDT SUN MAR 29 2026
TODAY
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES 1 TO
3 FEET.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING NORTH AFTER
MIDNIGHT. MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
MONDAY
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. SLIGHT CHANCE OF RAIN AND SNOW IN THE AFTERNOON. WAVES
1 TO 2 FEET BUILDING TO 2 TO 4 FEET LATE IN THE AFTERNOON.
MONDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO
25 KNOTS DECREASING TO 20 KNOTS EARLY IN THE MORNING. SLIGHT
CHANCE OF RAIN, LIGHT FREEZING RAIN AND SNOW IN THE EVENING, THEN
CHANCE OF LIGHT FREEZING RAIN, SNOW AND RAIN AFTER MIDNIGHT.
WAVES 3 TO 5 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ143-291600-
SILVER BAY HARBOR TO TWO HARBORS MN-
1223 AM CDT SUN MAR 29 2026
TODAY
NORTHEAST WIND 10 TO 15 KNOTS. PARTLY SUNNY. WAVES 1 TO
3 FEET.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES
1 TO 3 FEET.
MONDAY
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. SLIGHT CHANCE OF RAIN AND SNOW IN THE AFTERNOON. WAVES
1 TO 3 FEET BUILDING TO 2 TO 4 FEET LATE IN THE AFTERNOON. A
SMALL CRAFT ADVISORY MAY BE NEEDED.
MONDAY NIGHT
NORTHEAST WIND 20 TO 25 KNOTS. SLIGHT CHANCE OF
LIGHT FREEZING RAIN IN THE EVENING. SLIGHT CHANCE OF RAIN THROUGH
THE NIGHT. CHANCE OF SNOW AND LIGHT FREEZING RAIN AFTER MIDNIGHT.
WAVES 3 TO 5 FEET. WAVES OCCASIONALLY TO 7 FEET. A SMALL CRAFT
ADVISORY MAY BE NEEDED.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ144-291600-
TWO HARBORS TO DULUTH MN-
1223 AM CDT SUN MAR 29 2026
TODAY
NORTHEAST WIND 10 TO 15 KNOTS. PARTLY SUNNY. WAVES 1 TO
3 FEET.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES
1 TO 3 FEET.
MONDAY
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. SLIGHT CHANCE OF RAIN IN THE AFTERNOON. WAVES 1 TO
2 FEET BUILDING TO 3 TO 5 FEET IN THE AFTERNOON. A SMALL CRAFT
ADVISORY MAY BE NEEDED.
MONDAY NIGHT
NORTHEAST WIND 20 TO 25 KNOTS. GUSTS UP TO
25 KNOTS INCREASING TO 30 KNOTS LATE IN THE EVENING, THEN
DECREASING TO 25 KNOTS AFTER MIDNIGHT. SLIGHT CHANCE OF RAIN IN
THE EVENING, THEN CHANCE OF RAIN AND SNOW AFTER MIDNIGHT. WAVES
4 TO 6 FEET. WAVES OCCASIONALLY TO 7 FEET. A SMALL CRAFT ADVISORY
MAY BE NEEDED.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ145-291600-
DULUTH MN TO PORT WING WI-
1223 AM CDT SUN MAR 29 2026
TODAY
NORTHEAST WIND 10 TO 15 KNOTS. PARTLY SUNNY. WAVES 1 TO
2 FEET BUILDING TO 1 TO 3 FEET IN THE AFTERNOON.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES
1 TO 3 FEET.
MONDAY
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. SLIGHT CHANCE OF RAIN IN THE AFTERNOON. WAVES 1 TO
2 FEET BUILDING TO 3 TO 5 FEET IN THE AFTERNOON. A SMALL CRAFT
ADVISORY MAY BE NEEDED.
MONDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS. SLIGHT CHANCE OF RAIN IN THE EVENING, THEN
CHANCE OF RAIN, SNOW AND LIGHT FREEZING RAIN AFTER MIDNIGHT.
WAVES 4 TO 6 FEET. WAVES OCCASIONALLY TO 8 FEET. A SMALL CRAFT
ADVISORY MAY BE NEEDED.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ146-291600-
PORT WING TO SAND ISLAND WI-
1223 AM CDT SUN MAR 29 2026
TODAY
NORTHEAST WIND 10 TO 15 KNOTS. MOSTLY CLOUDY. WAVES 1 TO
3 FEET.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES
1 TO 3 FEET.
MONDAY
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. SLIGHT CHANCE OF RAIN, LIGHT FREEZING RAIN AND SNOW IN
THE AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET LATE IN
THE AFTERNOON. A SMALL CRAFT ADVISORY MAY BE NEEDED.
MONDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS. SLIGHT CHANCE OF RAIN AND LIGHT FREEZING RAIN IN
THE EVENING, THEN CHANCE OF RAIN AND SNOW AFTER MIDNIGHT. WAVES
3 TO 5 FEET. WAVES OCCASIONALLY TO 7 FEET. A SMALL CRAFT ADVISORY
MAY BE NEEDED.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ147-291600-
SAND ISLAND TO BAYFIELD WI-
1223 AM CDT SUN MAR 29 2026
TODAY
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES 1 TO
2 FEET.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES
1 TO 2 FEET.
MONDAY
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. SLIGHT CHANCE OF RAIN AND SNOW IN THE AFTERNOON. WAVES
1 TO 2 FEET BUILDING TO 1 TO 3 FEET LATE IN THE AFTERNOON.
MONDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS. SLIGHT CHANCE OF RAIN AND LIGHT FREEZING RAIN IN
THE EVENING, THEN CHANCE OF RAIN AND SNOW AFTER MIDNIGHT. WAVES
3 TO 5 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ150-291600-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
1223 AM CDT SUN MAR 29 2026
TODAY
NORTHEAST WIND 10 TO 15 KNOTS. MOSTLY CLOUDY. WAVES 1 TO
3 FEET.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES
1 TO 3 FEET.
MONDAY
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. SLIGHT CHANCE OF RAIN, LIGHT FREEZING RAIN AND SNOW IN
THE AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET LATE IN
THE AFTERNOON. A SMALL CRAFT ADVISORY MAY BE NEEDED.
MONDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO
30 KNOTS DECREASING TO 25 KNOTS AFTER MIDNIGHT. SLIGHT CHANCE OF
LIGHT FREEZING RAIN IN THE EVENING. CHANCE OF RAIN THROUGH THE
NIGHT. CHANCE OF SNOW AFTER MIDNIGHT. WAVES 4 TO 6 FEET. WAVES
OCCASIONALLY TO 7 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ148-291600-
OAK POINT TO SAXON HARBOR WI-
1223 AM CDT SUN MAR 29 2026
TODAY
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY UNTIL LATE
AFTERNOON THEN BECOMING MOSTLY SUNNY. WAVES 1 TO 2 FEET.
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES
1 TO 2 FEET.
MONDAY
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. SLIGHT CHANCE OF RAIN AND SNOW IN THE AFTERNOON. WAVES
1 TO 2 FEET BUILDING TO 2 TO 4 FEET LATE IN THE AFTERNOON.
MONDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO
25 KNOTS DECREASING TO 20 KNOTS IN THE LATE EVENING AND
OVERNIGHT. CHANCE OF RAIN. WAVES 2 TO 4 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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