255
FZUS53 KDLH 230400
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
1100 PM CDT FRI MAY 22 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.
LSZ140-231000-
GRAND PORTAGE TO GRAND MARAIS MN-
1100 PM CDT FRI MAY 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT SATURDAY
REST OF TONIGHT
EAST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS TOWARD DAYBREAK. CHANCE OF RAIN SHOWERS.
WAVES 3 TO 5 FEET.
SATURDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS IN THE LATE MORNING AND AFTERNOON. CHANCE
OF RAIN SHOWERS IN THE MORNING, THEN RAIN SHOWERS LIKELY IN THE
AFTERNOON. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET LATE IN THE
AFTERNOON.
SATURDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING NORTH
EARLY IN THE MORNING. SLIGHT CHANCE OF RAIN SHOWERS. WAVES 1 TO
3 FEET.
SUNDAY
SOUTHWEST WIND 5 TO 10 KNOTS. PARTLY SUNNY. WAVES 1 TO
2 FEET.
LSZ141-231000-
GRAND MARAIS TO TACONITE HARBOR MN-
1100 PM CDT FRI MAY 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT SATURDAY
REST OF TONIGHT
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS. CHANCE OF RAIN SHOWERS. WAVES 3 TO 5 FEET. WAVES
OCCASIONALLY TO 7 FEET.
SATURDAY
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS LATE IN THE AFTERNOON. RAIN SHOWERS. WAVES
2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET LATE IN THE AFTERNOON.
SATURDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS WITH GUSTS TO
AROUND 20 KNOTS IN THE EVENING BECOMING VARIABLE 10 KNOTS OR
LESS. SLIGHT CHANCE OF RAIN SHOWERS IN THE EVENING. WAVES 1 TO
2 FEET.
SUNDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST
5 KNOTS IN THE LATE MORNING AND AFTERNOON. PARTLY SUNNY. WAVES
1 TO 2 FEET.
LSZ142-231000-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
1100 PM CDT FRI MAY 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT SATURDAY
REST OF TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 25 KNOTS. CHANCE OF RAIN SHOWERS LATE IN THE EVENING, THEN
RAIN SHOWERS LIKELY TOWARD DAYBREAK. WAVES 3 TO 5 FEET. WAVES
OCCASIONALLY TO 7 FEET.
SATURDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS
DECREASING TO 20 KNOTS LATE IN THE AFTERNOON. RAIN SHOWERS IN THE
MORNING, THEN SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON.
WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET LATE IN THE AFTERNOON.
SATURDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS WITH GUSTS TO
AROUND 20 KNOTS IN THE EVENING BECOMING VARIABLE 10 KNOTS OR
LESS. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
SUNDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST
5 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON, THEN BECOMING
VARIABLE 10 KNOTS OR LESS LATE IN THE AFTERNOON. PARTLY SUNNY.
WAVES 1 FOOT OR LESS.
LSZ143-231000-
SILVER BAY HARBOR TO TWO HARBORS MN-
1100 PM CDT FRI MAY 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY
REST OF TONIGHT
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS. RAIN SHOWERS LIKELY LATE IN THE EVENING, THEN
CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. RAIN SHOWERS LIKELY TOWARD
DAYBREAK. WAVES 3 TO 5 FEET. WAVES OCCASIONALLY TO 7 FEET.
SATURDAY
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. RAIN SHOWERS LIKELY IN THE MORNING, THEN CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO
3 FEET LATE IN THE AFTERNOON. A SMALL CRAFT ADVISORY MAY BE
NEEDED.
SATURDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 25 KNOTS EASING TO 5 KNOTS LATE IN THE EVENING, THEN
BECOMING VARIABLE 10 KNOTS OR LESS AFTER MIDNIGHT. MOSTLY CLOUDY.
WAVES 1 TO 3 FEET.
SUNDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST
5 KNOTS IN THE LATE MORNING AND AFTERNOON. MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
LSZ144-231000-
TWO HARBORS TO DULUTH MN-
1100 PM CDT FRI MAY 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY
REST OF TONIGHT
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS. RAIN SHOWERS LIKELY LATE IN THE EVENING, THEN
CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. RAIN SHOWERS LIKELY TOWARD
DAYBREAK. WAVES 3 TO 5 FEET. WAVES OCCASIONALLY TO 7 FEET.
SATURDAY
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS. RAIN SHOWERS LIKELY IN THE MORNING. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET LATE IN THE AFTERNOON.
SATURDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS WITH GUSTS TO
AROUND 20 KNOTS IN THE EVENING BECOMING VARIABLE 10 KNOTS OR
LESS. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
SUNDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST
5 KNOTS IN THE LATE MORNING AND AFTERNOON. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
LSZ145-231000-
DULUTH MN TO PORT WING WI-
1100 PM CDT FRI MAY 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY
REST OF TONIGHT
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO
25 KNOTS TOWARD DAYBREAK. CHANCE OF RAIN SHOWERS LATE IN THE
EVENING, THEN RAIN SHOWERS LIKELY TOWARD DAYBREAK. WAVES 3 TO
5 FEET. WAVES OCCASIONALLY TO 7 FEET.
SATURDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS LATE IN THE AFTERNOON. RAIN SHOWERS LIKELY
IN THE MORNING. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET LATE
IN THE AFTERNOON.
SATURDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS WITH GUSTS TO
AROUND 20 KNOTS IN THE EVENING BECOMING VARIABLE 10 KNOTS OR
LESS. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
SUNDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST
5 KNOTS IN THE LATE MORNING AND AFTERNOON. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
LSZ146-231000-
PORT WING TO SAND ISLAND WI-
1100 PM CDT FRI MAY 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY
REST OF TONIGHT
EAST WIND 10 KNOTS RISING TO 10 TO 15 KNOTS
WITH GUSTS TO AROUND 25 KNOTS AFTER MIDNIGHT. CHANCE OF RAIN
SHOWERS. WAVES 2 TO 4 FEET.
SATURDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
IN THE AFTERNOON. RAIN SHOWERS LIKELY IN THE MORNING, THEN SLIGHT
CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES 1 TO 3 FEET.
SATURDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS WITH GUSTS TO
AROUND 20 KNOTS IN THE EVENING BECOMING VARIABLE 10 KNOTS OR
LESS. MOSTLY CLOUDY. WAVES 1 TO 2 FEET.
SUNDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST
5 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON, THEN BECOMING
SOUTH LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
LSZ147-231000-
SAND ISLAND TO BAYFIELD WI-
1100 PM CDT FRI MAY 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY
REST OF TONIGHT
EAST WIND 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS RISING TO 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
AFTER MIDNIGHT. CHANCE OF RAIN SHOWERS. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET TOWARD DAYBREAK.
SATURDAY
EAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS EARLY
IN THE MORNING. RAIN SHOWERS LIKELY IN THE MORNING, THEN CHANCE
OF RAIN SHOWERS IN THE AFTERNOON. WAVES 1 TO 2 FEET.
SATURDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS EARLY IN THE
EVENING BECOMING VARIABLE 10 KNOTS OR LESS. CHANCE OF RAIN
SHOWERS IN THE EVENING. WAVES 1 TO 2 FEET.
SUNDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTH 5 KNOTS
IN THE AFTERNOON. MOSTLY CLOUDY IN THE MORNING THEN BECOMING
MOSTLY SUNNY. WAVES 1 FOOT OR LESS.
LSZ150-231000-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
1100 PM CDT FRI MAY 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY
REST OF TONIGHT
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 25 KNOTS AFTER MIDNIGHT. CHANCE OF RAIN SHOWERS.
WAVES 3 TO 5 FEET.
SATURDAY
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 25 KNOTS.
CHANCE OF RAIN SHOWERS. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO
3 FEET IN THE AFTERNOON.
SATURDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING WEST
AFTER MIDNIGHT. CHANCE OF RAIN SHOWERS IN THE EVENING. WAVES 1 TO
2 FEET.
SUNDAY
SOUTHWEST WIND 5 KNOTS BECOMING SOUTH IN THE AFTERNOON.
MOSTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY SUNNY. WAVES
1 FOOT OR LESS.
LSZ121-231000-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
1100 PM CDT FRI MAY 22 2026
REST OF TONIGHT
EAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
LATE IN THE EVENING. CHANCE OF RAIN SHOWERS LATE IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN SHOWERS TOWARD DAYBREAK. WAVES 1 TO
2 FEET.
SATURDAY
EAST WIND 5 TO 10 KNOTS BECOMING SOUTHEAST IN THE
AFTERNOON. RAIN SHOWERS LIKELY IN THE MORNING, THEN CHANCE OF
RAIN SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
SATURDAY NIGHT
EAST WIND 5 TO 10 KNOTS BECOMING NORTH LATE IN
THE EVENING, THEN BECOMING VARIABLE 10 KNOTS OR LESS AFTER
MIDNIGHT. CHANCE OF RAIN SHOWERS IN THE EVENING. WAVES 1 FOOT OR
LESS.
SUNDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST
5 KNOTS IN THE LATE MORNING AND AFTERNOON. SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
LSZ148-231000-
OAK POINT TO SAXON HARBOR WI-
1100 PM CDT FRI MAY 22 2026
REST OF TONIGHT
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
LATE IN THE EVENING. CHANCE OF RAIN SHOWERS LATE IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN SHOWERS TOWARD DAYBREAK. WAVES 1 TO
3 FEET.
SATURDAY
EAST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN THE
MORNING. RAIN SHOWERS LIKELY. WAVES 1 TO 2 FEET.
SATURDAY NIGHT
EAST WIND 5 TO 10 KNOTS IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. CHANCE OF RAIN SHOWERS IN THE EVENING.
WAVES 1 FOOT OR LESS.
SUNDAY
VARIABLE WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST
5 KNOTS LATE IN THE MORNING, THEN BECOMING NORTHEAST EARLY IN THE
AFTERNOON BECOMING EAST LATE IN THE AFTERNOON. SLIGHT CHANCE OF
RAIN SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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