476
FZUS53 KDLH 162308
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
608 PM CDT SAT MAY 16 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.
LSZ140-171000-
GRAND PORTAGE TO GRAND MARAIS MN-
608 PM CDT SAT MAY 16 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TONIGHT
NORTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING NORTHEAST 5 TO 10 KNOTS AFTER MIDNIGHT. MOSTLY
CLEAR. WAVES 1 TO 2 FEET.
SUNDAY
NORTHEAST WIND UP TO 30 KNOTS WITH GALES TO AROUND
35 KNOTS. CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES 1 TO
2 FEET BUILDING TO 4 TO 7 FEET. WAVES OCCASIONALLY TO 9 FEET. A
GALE WARNING MAY BE NEEDED.
SUNDAY NIGHT
NORTHEAST WIND UP TO 30 KNOTS. GUSTS UP TO
35 KNOTS DECREASING TO 30 KNOTS EARLY IN THE MORNING. RAIN
SHOWERS AND CHANCE OF THUNDERSTORMS. WAVES 4 TO 7 FEET. WAVES
OCCASIONALLY TO 9 FEET. A GALE WARNING MAY BE NEEDED.
MONDAY
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO 25 KNOTS
UNTIL LATE AFTERNOON. RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING, THEN SLIGHT CHANCE OF RAIN SHOWERS
IN THE AFTERNOON. WAVES 3 TO 5 FEET. A SMALL CRAFT ADVISORY MAY
BE NEEDED.
LSZ141-171000-
GRAND MARAIS TO TACONITE HARBOR MN-
608 PM CDT SAT MAY 16 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TONIGHT
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 25 KNOTS BECOMING NORTH 5 KNOTS LATE IN THE EVENING, THEN
BECOMING NORTHEAST AFTER MIDNIGHT. MOSTLY CLEAR. WAVES 1 TO
2 FEET.
SUNDAY
EAST WIND UP TO 30 KNOTS WITH GALES TO AROUND 35 KNOTS.
CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES 1 TO 2 FEET
BUILDING TO 5 TO 8 FEET. WAVES OCCASIONALLY TO 11 FEET. A GALE
WARNING MAY BE NEEDED.
SUNDAY NIGHT
NORTHEAST WIND UP TO 30 KNOTS WITH GALES TO
AROUND 35 KNOTS EASING TO 15 TO 20 KNOTS WITH GUSTS TO AROUND
30 KNOTS EARLY IN THE MORNING. RAIN SHOWERS AND CHANCE OF
THUNDERSTORMS. WAVES 5 TO 8 FEET SUBSIDING TO 4 TO 6 FEET EARLY
IN THE MORNING. WAVES OCCASIONALLY TO 11 FEET. A GALE WARNING MAY
BE NEEDED.
MONDAY
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE MORNING. RAIN SHOWERS 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.
LSZ142-171000-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
608 PM CDT SAT MAY 16 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TONIGHT
NORTH WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHEAST AFTER MIDNIGHT. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
SUNDAY
NORTHEAST WIND UP TO 30 KNOTS WITH GALES TO AROUND
35 KNOTS. CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES 1 TO
2 FEET BUILDING TO 6 TO 9 FEET. WAVES OCCASIONALLY TO 12 FEET. A
GALE WARNING MAY BE NEEDED.
SUNDAY NIGHT
NORTHEAST WIND UP TO 30 KNOTS WITH GALES TO
AROUND 35 KNOTS EASING TO 10 TO 15 KNOTS WITH GUSTS TO AROUND
25 KNOTS EARLY IN THE MORNING. RAIN SHOWERS AND CHANCE OF
THUNDERSTORMS. WAVES 7 TO 10 FEET SUBSIDING TO 4 TO 7 FEET EARLY
IN THE MORNING. WAVES OCCASIONALLY TO 13 FEET. A GALE WARNING MAY
BE NEEDED.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS. RAIN SHOWERS IN THE
MORNING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. WAVES 3 TO 5 FEET SUBSIDING TO
1 TO 3 FEET. WAVES OCCASIONALLY TO 7 FEET. A SMALL CRAFT ADVISORY
MAY BE NEEDED.
LSZ143-171000-
SILVER BAY HARBOR TO TWO HARBORS MN-
608 PM CDT SAT MAY 16 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TONIGHT
NORTH WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHEAST 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
SUNDAY
NORTHEAST WIND UP TO 30 KNOTS WITH GALES TO AROUND
35 KNOTS. CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES 3 TO
5 FEET BUILDING TO 7 TO 10 FEET IN THE AFTERNOON. WAVES
OCCASIONALLY TO 12 FEET. A GALE WARNING MAY BE NEEDED.
SUNDAY NIGHT
NORTHEAST WIND UP TO 30 KNOTS WITH GALES TO
AROUND 40 KNOTS EASING TO 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS EARLY IN THE MORNING. RAIN SHOWERS AND CHANCE OF
THUNDERSTORMS. WAVES 7 TO 10 FEET SUBSIDING TO 4 TO 7 FEET EARLY
IN THE MORNING. WAVES OCCASIONALLY TO 13 FEET. A GALE WARNING MAY
BE NEEDED.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS. RAIN SHOWERS IN THE
MORNING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE DAY. RAIN
SHOWERS LIKELY IN THE AFTERNOON. WAVES 3 TO 5 FEET SUBSIDING TO
1 TO 3 FEET. WAVES OCCASIONALLY TO 7 FEET. A SMALL CRAFT ADVISORY
MAY BE NEEDED.
LSZ144-171000-
TWO HARBORS TO DULUTH MN-
608 PM CDT SAT MAY 16 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TONIGHT
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS BECOMING NORTHEAST 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS TOWARD DAYBREAK. MOSTLY CLEAR. WAVES 1 TO 2 FEET
BUILDING TO 1 TO 3 FEET TOWARD DAYBREAK.
SUNDAY
NORTHEAST WIND UP TO 30 KNOTS WITH GALES TO AROUND
35 KNOTS RISING TO GALES TO 35 KNOTS WITH GALES TO AROUND
40 KNOTS LATE IN THE AFTERNOON. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 5 TO 8 FEET
BUILDING TO 7 TO 10 FEET LATE IN THE AFTERNOON. WAVES
OCCASIONALLY TO 13 FEET. A GALE WARNING MAY BE NEEDED.
SUNDAY NIGHT
NORTHEAST GALES TO 35 KNOTS WITH GALES TO AROUND
40 KNOTS EASING TO 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS.
RAIN SHOWERS AND CHANCE OF THUNDERSTORMS. WAVES 8 TO 11 FEET
SUBSIDING TO 4 TO 7 FEET EARLY IN THE MORNING. WAVES OCCASIONALLY
TO 14 FEET. A GALE WARNING MAY BE NEEDED.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS. RAIN SHOWERS IN THE
MORNING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE DAY. RAIN
SHOWERS LIKELY IN THE AFTERNOON. WAVES 3 TO 5 FEET SUBSIDING TO
1 TO 2 FEET LATE IN THE AFTERNOON. A SMALL CRAFT ADVISORY MAY BE
NEEDED.
LSZ145-171000-
DULUTH MN TO PORT WING WI-
608 PM CDT SAT MAY 16 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TONIGHT
NORTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS BECOMING NORTHEAST 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS TOWARD DAYBREAK. MOSTLY CLEAR. WAVES 1 TO 2 FEET
BUILDING TO 1 TO 3 FEET TOWARD DAYBREAK.
SUNDAY
NORTHEAST WIND UP TO 30 KNOTS. GUSTS UP TO 35 KNOTS
INCREASING TO 40 KNOTS LATE IN THE AFTERNOON. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
WAVES 7 TO 10 FEET. WAVES OCCASIONALLY TO 13 FEET. A GALE WARNING
MAY BE NEEDED.
SUNDAY NIGHT
NORTHEAST WIND UP TO 30 KNOTS WITH GALES TO
AROUND 40 KNOTS EASING TO 15 TO 20 KNOTS EARLY IN THE MORNING.
RAIN SHOWERS AND CHANCE OF THUNDERSTORMS. WAVES 8 TO 11 FEET
SUBSIDING TO 4 TO 6 FEET EARLY IN THE MORNING. WAVES OCCASIONALLY
TO 14 FEET. A GALE WARNING MAY BE NEEDED.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS. RAIN SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS. WAVES 3 TO 5 FEET SUBSIDING TO
1 TO 3 FEET IN THE AFTERNOON. A SMALL CRAFT ADVISORY MAY BE
NEEDED.
LSZ146-171000-
PORT WING TO SAND ISLAND WI-
608 PM CDT SAT MAY 16 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS WITH GUSTS TO
AROUND 20 KNOTS BECOMING EAST 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS TOWARD DAYBREAK. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
SUNDAY
NORTHEAST WIND 20 TO 25 KNOTS. GUSTS UP TO 25 KNOTS
INCREASING TO 35 KNOTS. CHANCE OF RAIN SHOWERS IN THE AFTERNOON.
WAVES 4 TO 6 FEET BUILDING TO 5 TO 8 FEET LATE IN THE AFTERNOON.
WAVES OCCASIONALLY TO 11 FEET. A GALE WARNING MAY BE NEEDED.
SUNDAY NIGHT
NORTHEAST WIND UP TO 30 KNOTS WITH GALES TO
AROUND 35 KNOTS EASING TO 15 TO 20 KNOTS WITH GUSTS TO AROUND
25 KNOTS AFTER MIDNIGHT. RAIN SHOWERS AND CHANCE OF
THUNDERSTORMS. WAVES 6 TO 9 FEET SUBSIDING TO 4 TO 6 FEET EARLY
IN THE MORNING. WAVES OCCASIONALLY TO 12 FEET. A GALE WARNING MAY
BE NEEDED.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS. RAIN SHOWERS IN THE
MORNING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE DAY. RAIN
SHOWERS LIKELY IN THE AFTERNOON. WAVES 3 TO 5 FEET SUBSIDING TO
1 TO 3 FEET IN THE AFTERNOON. A SMALL CRAFT ADVISORY MAY BE
NEEDED.
LSZ147-171000-
SAND ISLAND TO BAYFIELD WI-
608 PM CDT SAT MAY 16 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TONIGHT
NORTH WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHEAST WITH GUSTS TO AROUND 20 KNOTS AFTER
MIDNIGHT. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
SUNDAY
EAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS
BECOMING NORTHEAST UP TO 30 KNOTS WITH GALES TO AROUND 35 KNOTS
IN THE AFTERNOON. CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES
1 TO 2 FEET BUILDING TO 5 TO 8 FEET. WAVES OCCASIONALLY TO
11 FEET. A GALE WARNING MAY BE NEEDED.
SUNDAY NIGHT
NORTHEAST WIND 20 TO 25 KNOTS WITH GUSTS TO
AROUND 30 KNOTS EASING TO 5 TO 10 KNOTS EARLY IN THE MORNING.
RAIN SHOWERS AND CHANCE OF THUNDERSTORMS. WAVES 5 TO 8 FEET
SUBSIDING TO 4 TO 6 FEET EARLY IN THE MORNING. WAVES OCCASIONALLY
TO 11 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS. RAIN SHOWERS IN THE
MORNING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE DAY. CHANCE
OF RAIN SHOWERS IN THE AFTERNOON. WAVES 3 TO 5 FEET SUBSIDING TO
1 TO 3 FEET IN THE AFTERNOON. A SMALL CRAFT ADVISORY MAY BE
NEEDED.
LSZ150-171000-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
608 PM CDT SAT MAY 16 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TONIGHT
NORTH WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHEAST 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR. WAVES 1 TO 2 FEET.
SUNDAY
NORTHEAST WIND UP TO 30 KNOTS WITH GALES TO AROUND
35 KNOTS. CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES 1 TO
3 FEET BUILDING TO 6 TO 9 FEET. WAVES OCCASIONALLY TO 12 FEET. A
GALE WARNING MAY BE NEEDED.
SUNDAY NIGHT
NORTHEAST WIND UP TO 30 KNOTS WITH GALES TO
AROUND 35 KNOTS EASING TO 15 TO 20 KNOTS WITH GUSTS TO AROUND
30 KNOTS AFTER MIDNIGHT. RAIN SHOWERS AND CHANCE OF
THUNDERSTORMS. WAVES 7 TO 10 FEET SUBSIDING TO 4 TO 7 FEET EARLY
IN THE MORNING. WAVES OCCASIONALLY TO 13 FEET. A GALE WARNING MAY
BE NEEDED.
MONDAY
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS. RAIN SHOWERS IN THE MORNING. SLIGHT CHANCE OF
THUNDERSTORMS THROUGH THE DAY. CHANCE OF RAIN SHOWERS IN THE
AFTERNOON. WAVES 3 TO 5 FEET. WAVES OCCASIONALLY TO 7 FEET. A
SMALL CRAFT ADVISORY MAY BE NEEDED.
LSZ121-171000-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
608 PM CDT SAT MAY 16 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TONIGHT
NORTH WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
25 KNOTS BECOMING NORTHEAST IN THE LATE EVENING AND OVERNIGHT.
MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
SUNDAY
NORTHEAST WIND 15 TO 20 KNOTS. GUSTS UP TO 20 KNOTS
INCREASING TO 30 KNOTS. CHANCE OF RAIN SHOWERS IN THE AFTERNOON.
WAVES 1 TO 2 FEET BUILDING TO 1 TO 3 FEET IN THE AFTERNOON.
SUNDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO
AROUND 30 KNOTS EASING TO 5 TO 10 KNOTS EARLY IN THE MORNING.
RAIN SHOWERS AND CHANCE OF THUNDERSTORMS. WAVES 1 TO 3 FEET.
MONDAY
NORTHEAST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. RAIN SHOWERS THROUGH THE DAY.
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
LSZ148-171000-
OAK POINT TO SAXON HARBOR WI-
608 PM CDT SAT MAY 16 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
REST OF TONIGHT
NORTH WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHEAST 10 TO 15 KNOTS AFTER MIDNIGHT. MOSTLY
CLEAR. WAVES 1 TO 2 FEET.
SUNDAY
NORTHEAST WIND 20 TO 25 KNOTS WITH GUSTS TO AROUND
30 KNOTS. CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES 1 TO
2 FEET BUILDING TO 4 TO 7 FEET IN THE LATE MORNING AND AFTERNOON.
WAVES OCCASIONALLY TO 9 FEET. A SMALL CRAFT ADVISORY MAY BE
NEEDED.
SUNDAY NIGHT
NORTHEAST WIND 20 TO 25 KNOTS WITH GUSTS TO
AROUND 30 KNOTS EASING TO 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS AFTER MIDNIGHT. CHANCE OF RAIN SHOWERS IN THE EVENING.
CHANCE OF THUNDERSTORMS THROUGH THE NIGHT. RAIN SHOWERS AFTER
MIDNIGHT. WAVES 4 TO 7 FEET SUBSIDING TO 2 TO 4 FEET EARLY IN THE
MORNING. WAVES OCCASIONALLY TO 9 FEET. A SMALL CRAFT ADVISORY MAY
BE NEEDED.
MONDAY
NORTH WIND 5 TO 10 KNOTS BECOMING NORTHEAST LATE IN THE
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING. RAIN
SHOWERS THROUGH THE DAY. CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET IN THE
AFTERNOON.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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