904
FZUS53 KDLH 191448
NSHDLH
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
948 AM CDT TUE MAY 19 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.
LSZ140-192200-
GRAND PORTAGE TO GRAND MARAIS MN-
948 AM CDT TUE MAY 19 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
LATE. CHANCE OF SPRINKLES THROUGH THE DAY. WAVES 1 TO 3 FEET.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. CHANCE OF SPRINKLES IN THE EVENING. WAVES
1 TO 2 FEET.
WEDNESDAY
NORTHWEST WIND 5 KNOTS BECOMING WEST LATE IN THE
MORNING, THEN BECOMING SOUTHWEST 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS IN THE AFTERNOON. SUNNY. WAVES 1 TO 3 FEET.
WEDNESDAY NIGHT
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS EASING TO 5 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR.
WAVES 1 TO 2 FEET.
LSZ141-192200-
GRAND MARAIS TO TACONITE HARBOR MN-
948 AM CDT TUE MAY 19 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
LATE. CHANCE OF SPRINKLES IN THE AFTERNOON. WAVES 1 TO 2 FEET.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. CHANCE OF SPRINKLES IN THE EVENING. WAVES
1 TO 2 FEET.
WEDNESDAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTH IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
SOUTH WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
LSZ142-192200-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
948 AM CDT TUE MAY 19 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS IN
THE AFTERNOON. CHANCE OF SPRINKLES IN THE AFTERNOON. WAVES 1 TO
3 FEET.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. CHANCE OF SPRINKLES IN THE EVENING. WAVES
1 TO 2 FEET.
WEDNESDAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTH IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHEAST WIND 5 KNOTS EARLY IN THE EVENING
BECOMING VARIABLE 10 KNOTS OR LESS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
LSZ143-192200-
SILVER BAY HARBOR TO TWO HARBORS MN-
948 AM CDT TUE MAY 19 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING NORTHWEST WITH GUSTS TO AROUND 20 KNOTS LATE.
CHANCE OF SPRINKLES IN THE AFTERNOON. WAVES 1 TO 3 FEET.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. CHANCE OF SPRINKLES IN
THE EVENING. WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHWEST WIND 5 KNOTS BECOMING SOUTH IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHEAST WIND 5 KNOTS UNTIL EARLY MORNING
BECOMING VARIABLE 10 KNOTS OR LESS. MOSTLY CLEAR. WAVES 1 FOOT OR
LESS.
LSZ144-192200-
TWO HARBORS TO DULUTH MN-
948 AM CDT TUE MAY 19 2026
REST OF TODAY
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
IN THE AFTERNOON. CHANCE OF SPRINKLES IN THE AFTERNOON. WAVES
1 TO 3 FEET.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. CHANCE OF SPRINKLES IN THE EVENING. WAVES
1 TO 2 FEET.
WEDNESDAY
WEST WIND 5 KNOTS BECOMING SOUTHEAST IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
NORTHEAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
LSZ145-192200-
DULUTH MN TO PORT WING WI-
948 AM CDT TUE MAY 19 2026
REST OF TODAY
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
IN THE AFTERNOON. CHANCE OF SPRINKLES IN THE AFTERNOON. WAVES
1 TO 3 FEET.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. CHANCE OF SPRINKLES IN THE EVENING. WAVES
1 TO 2 FEET.
WEDNESDAY
WEST WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.
SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
EAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES 1 FOOT
OR LESS.
LSZ146-192200-
PORT WING TO SAND ISLAND WI-
948 AM CDT TUE MAY 19 2026
REST OF TODAY
WEST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND
20 KNOTS BECOMING 10 KNOTS WITH GUSTS TO AROUND 20 KNOTS LATE.
CHANCE OF SPRINKLES IN THE AFTERNOON. WAVES 1 TO 3 FEET.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. CHANCE OF SPRINKLES IN
THE EVENING. WAVES 1 TO 2 FEET.
WEDNESDAY
WEST WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING SOUTHEAST 5 KNOTS LATE
IN THE AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
EAST WIND 5 KNOTS IN THE EVENING BECOMING
VARIABLE 10 KNOTS OR LESS. MOSTLY CLEAR. WAVES 1 FOOT OR LESS.
LSZ147-192200-
SAND ISLAND TO BAYFIELD WI-
948 AM CDT TUE MAY 19 2026
REST OF TODAY
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
IN THE AFTERNOON. CHANCE OF SPRINKLES IN THE AFTERNOON. WAVES
1 TO 3 FEET.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. CHANCE OF SPRINKLES IN
THE EVENING. WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHWEST WIND 5 KNOTS EARLY IN THE MORNING BECOMING
VARIABLE 10 KNOTS OR LESS, THEN BECOMING SOUTHEAST 5 KNOTS IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
SOUTHEAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
LSZ150-192200-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
948 AM CDT TUE MAY 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM CDT THIS AFTERNOON
REST OF TODAY
WEST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS
IN THE AFTERNOON. CHANCE OF SPRINKLES IN THE AFTERNOON. WAVES
3 TO 5 FEET.
TONIGHT
NORTHWEST WIND 10 TO 15 KNOTS EASING TO 5 TO 10 KNOTS
IN THE LATE EVENING AND OVERNIGHT. CHANCE OF SPRINKLES IN THE
EVENING. WAVES 1 TO 3 FEET.
WEDNESDAY
NORTHWEST WIND 5 KNOTS BECOMING WEST LATE IN THE
MORNING, THEN BECOMING SOUTHEAST IN THE AFTERNOON. SUNNY. WAVES
1 FOOT OR LESS.
WEDNESDAY NIGHT
SOUTHEAST WIND 5 KNOTS. MOSTLY CLEAR. WAVES
1 FOOT OR LESS.
LSZ121-192200-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
948 AM CDT TUE MAY 19 2026
REST OF TODAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING WEST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS LATE. CHANCE OF SPRINKLES
IN THE AFTERNOON. WAVES 1 FOOT OR LESS.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. CHANCE OF SPRINKLES IN THE EVENING. WAVES
1 FOOT OR LESS.
WEDNESDAY
NORTHWEST WIND 5 KNOTS BECOMING EAST IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
EAST WIND 5 KNOTS BECOMING SOUTH AFTER
MIDNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
LSZ148-192200-
OAK POINT TO SAXON HARBOR WI-
948 AM CDT TUE MAY 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM CDT THIS AFTERNOON
REST OF TODAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING WEST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE AFTERNOON. CHANCE
OF SPRINKLES IN THE AFTERNOON. WAVES 2 TO 4 FEET.
TONIGHT
NORTHWEST WIND 5 TO 10 KNOTS. GUSTS UP TO 20 KNOTS
EARLY IN THE EVENING. CHANCE OF SPRINKLES IN THE EVENING. WAVES
1 TO 3 FEET.
WEDNESDAY
NORTHWEST WIND 5 KNOTS BECOMING EAST IN THE
AFTERNOON. SUNNY. WAVES 1 FOOT OR LESS.
WEDNESDAY NIGHT
SOUTHEAST WIND 5 KNOTS BECOMING SOUTH AFTER
MIDNIGHT. PARTLY CLOUDY. WAVES 1 FOOT OR LESS.
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
WFO DLH
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