Heavy thunderstorms will continue areas of excessive rainfall and locally considerable flooding over parts of the southern Plains into the mid-Mississippi River Valley through Friday. Heavy to excessive rainfall may bring flash and urban flooding, along with isolated riverine flooding to a part of the Upper Midwest Thursday. Read More >
FZUS53 KDLH 120757
NSTDLH
EXPERIMENTAL TABULAR NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE DULUTH MN
257 AM CDT THU JUN 12 2025
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.
LSZ140-141-121500-
GRAND PORTAGE TO GRAND MARAIS MN-
GRAND MARAIS TO TACONITE HARBOR MN-
257 AM CDT THU JUN 12 2025
.TODAY...
WEATHER.............MOSTLY SUNNY.
SFC WINDS...........EAST 10 TO 15 KNOTS.
100-FT WINDS........EAST 15 TO 20 KNOTS.
SIG WAVES...........2 FEET OR LESS.
.TONIGHT...
WEATHER.............MOSTLY CLOUDY.
SFC WINDS...........NORTHEAST 5 TO 10 KNOTS.
100-FT WINDS........NORTHEAST 10 TO 15 KNOTS.
SIG WAVES...........1 TO 3 FEET.
.FRIDAY...
WEATHER.............MOSTLY CLOUDY WITH CHANCE OF SHOWERS.
SFC WINDS...........NORTHEAST 10 TO 15 KNOTS.
100-FT WINDS........NORTHEAST 15 TO 20 KNOTS.
SIG WAVES...........2 TO 4 FEET.
.FRIDAY NIGHT...
WEATHER.............MOSTLY CLOUDY WITH CHANCE OF SHOWERS, THEN
MOSTLY CLOUDY IN THE LATE EVENING AND
OVERNIGHT.
SFC WINDS...........NORTHEAST 15 TO 20 KNOTS.
100-FT WINDS........NORTHEAST 20 TO 25 KNOTS.
SIG WAVES...........2 TO 4 FEET.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...NORTHEAST WINDS 5 TO 10 KNOTS. WAVES 2 TO 4 FEET.
.SUNDAY...CHANCE OF SHOWERS. EAST WINDS 5 TO 10 KNOTS. WAVES
2 FEET OR LESS.
.MONDAY...CHANCE OF THUNDERSTORMS IN THE AFTERNOON AND EVENING.
CHANCE OF SHOWERS. EAST WINDS 5 TO 10 KNOTS. WAVES 2 FEET OR
LESS.
$$
LSZ142-143-121500-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
SILVER BAY HARBOR TO TWO HARBORS MN-
257 AM CDT THU JUN 12 2025
.TODAY...
WEATHER.............MOSTLY SUNNY.
SFC WINDS...........NORTHEAST 10 TO 15 KNOTS.
100-FT WINDS........NORTHEAST 15 TO 20 KNOTS.
SIG WAVES...........1 TO 3 FEET BUILDING TO 2 TO 4 FEET IN THE LATE
MORNING AND AFTERNOON.
.TONIGHT...
WEATHER.............MOSTLY CLOUDY, THEN CHANCE OF SHOWERS AFTER
MIDNIGHT.
SFC WINDS...........NORTHEAST 10 TO 15 KNOTS.
100-FT WINDS........NORTHEAST 15 TO 20 KNOTS.
SIG WAVES...........2 TO 4 FEET.
.FRIDAY...
WEATHER.............CLOUDY WITH CHANCE OF SHOWERS, THEN SHOWERS
LIKELY IN THE LATE MORNING AND AFTERNOON.
SFC WINDS...........NORTHEAST 15 TO 20 KNOTS.
100-FT WINDS........NORTHEAST 20 TO 25 KNOTS.
SIG WAVES...........2 TO 4 FEET.
.FRIDAY NIGHT...
WEATHER.............MOSTLY CLOUDY WITH CHANCE OF SHOWERS.
SFC WINDS...........NORTHEAST 15 TO 20 KNOTS.
100-FT WINDS........NORTHEAST 20 TO 25 KNOTS.
SIG WAVES...........2 TO 4 FEET.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...NORTHEAST WINDS 5 TO 10 KNOTS. WAVES 2 TO 4 FEET.
.SUNDAY...CHANCE OF SHOWERS. EAST WINDS 5 TO 10 KNOTS. WAVES
2 FEET OR LESS.
.MONDAY...CHANCE OF THUNDERSTORMS IN THE AFTERNOON AND EVENING.
CHANCE OF SHOWERS. EAST WINDS 5 TO 10 KNOTS. WAVES 2 FEET OR
LESS.
$$
LSZ144-145-121500-
TWO HARBORS TO DULUTH MN-DULUTH MN TO PORT WING WI-
257 AM CDT THU JUN 12 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON TODAY TO 10 PM CDT
FRIDAY...
.TODAY...
WEATHER.............PARTLY SUNNY.
SFC WINDS...........NORTHEAST 15 TO 20 KNOTS.
100-FT WINDS........NORTHEAST 20 TO 25 KNOTS.
SIG WAVES...........2 TO 4 FEET.
.TONIGHT...
WEATHER.............CLOUDY, THEN SHOWERS LIKELY AFTER MIDNIGHT.
SFC WINDS...........NORTHEAST 15 TO 20 KNOTS.
100-FT WINDS........NORTHEAST 20 TO 25 KNOTS.
SIG WAVES...........2 TO 4 FEET.
.FRIDAY...
WEATHER.............SHOWERS, THEN SHOWERS LIKELY EARLY IN THE
AFTERNOON.
SFC WINDS...........NORTHEAST 20 TO 25 KNOTS.
100-FT WINDS........NORTHEAST TO 30 KNOTS.
SIG WAVES...........2 TO 4 FEET.
OCNL WAVES..........AROUND 5 FEET.
.FRIDAY NIGHT...
WEATHER.............MOSTLY CLOUDY WITH SHOWERS LIKELY, THEN MOSTLY
CLOUDY WITH CHANCE OF SHOWERS IN THE LATE
EVENING AND OVERNIGHT.
SFC WINDS...........NORTHEAST 20 TO 25 KNOTS.
100-FT WINDS........NORTHEAST TO 30 KNOTS.
SIG WAVES...........2 TO 4 FEET.
OCNL WAVES..........AROUND 5 FEET.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...NORTHEAST WINDS 5 TO 10 KNOTS. WAVES 2 TO 4 FEET.
.SUNDAY...CHANCE OF SHOWERS. EAST WINDS 5 TO 10 KNOTS. WAVES
2 FEET OR LESS.
.MONDAY...CHANCE OF THUNDERSTORMS IN THE AFTERNOON AND EVENING.
CHANCE OF SHOWERS. EAST WINDS 5 TO 10 KNOTS. WAVES 2 FEET OR
LESS.
$$
LSZ146-121500-
PORT WING TO SAND ISLAND WI-
257 AM CDT THU JUN 12 2025
.TODAY...
WEATHER.............MOSTLY SUNNY.
SFC WINDS...........NORTHEAST 15 TO 20 KNOTS.
100-FT WINDS........NORTHEAST 20 TO 25 KNOTS.
SIG WAVES...........1 TO 3 FEET BUILDING TO 3 TO 5 FEET IN THE LATE
MORNING AND AFTERNOON.
OCNL WAVES..........AROUND 5 FEET IN THE LATE MORNING AND
AFTERNOON.
.TONIGHT...
WEATHER.............CLOUDY, THEN SHOWERS LIKELY AFTER MIDNIGHT.
SFC WINDS...........NORTHEAST 15 TO 20 KNOTS.
100-FT WINDS........NORTHEAST 20 TO 25 KNOTS.
SIG WAVES...........2 TO 4 FEET.
OCNL WAVES..........AROUND 5 FEET EARLY IN THE EVENING THEN AROUND
5 FEET AFTER MIDNIGHT.
.FRIDAY...
WEATHER.............SHOWERS, THEN SHOWERS LIKELY EARLY IN THE
AFTERNOON.
SFC WINDS...........NORTHEAST 15 TO 20 KNOTS.
100-FT WINDS........NORTHEAST 20 TO 25 KNOTS.
SIG WAVES...........3 TO 5 FEET.
OCNL WAVES..........AROUND 6 FEET.
.FRIDAY NIGHT...
WEATHER.............MOSTLY CLOUDY WITH SHOWERS LIKELY, THEN MOSTLY
CLOUDY WITH CHANCE OF SHOWERS IN THE LATE
EVENING AND OVERNIGHT.
SFC WINDS...........NORTHEAST 20 TO 25 KNOTS DECREASING TO 10 TO 15
KNOTS AFTER MIDNIGHT.
100-FT WINDS........NORTHEAST TO 30 KNOTS DECREASING TO 15 TO 20
KNOTS AFTER MIDNIGHT.
SIG WAVES...........3 TO 5 FEET.
OCNL WAVES..........AROUND 6 FEET.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...NORTHEAST WINDS 5 TO 10 KNOTS. WAVES 2 TO 4 FEET.
.SUNDAY...CHANCE OF SHOWERS. EAST WINDS 5 TO 10 KNOTS. WAVES
2 FEET OR LESS.
.MONDAY...CHANCE OF THUNDERSTORMS IN THE AFTERNOON AND EVENING.
CHANCE OF SHOWERS. EAST WINDS 5 TO 10 KNOTS. WAVES 2 FEET OR
LESS.
$$
LSZ147-121500-
SAND ISLAND TO BAYFIELD WI-
257 AM CDT THU JUN 12 2025
.TODAY...
WEATHER.............MOSTLY SUNNY.
SFC WINDS...........NORTHEAST 10 TO 15 KNOTS.
100-FT WINDS........NORTHEAST 15 TO 20 KNOTS.
SIG WAVES...........1 TO 3 FEET.
.TONIGHT...
WEATHER.............CLOUDY, THEN CHANCE OF SHOWERS AFTER MIDNIGHT.
SFC WINDS...........NORTHEAST 10 TO 15 KNOTS.
100-FT WINDS........EAST 15 TO 20 KNOTS.
SIG WAVES...........2 TO 4 FEET.
.FRIDAY...
WEATHER.............CLOUDY WITH CHANCE OF SHOWERS, THEN SHOWERS IN
THE LATE MORNING AND EARLY AFTERNOON. SHOWERS
LIKELY.
SFC WINDS...........NORTHEAST 15 TO 20 KNOTS.
100-FT WINDS........NORTHEAST 20 TO 25 KNOTS.
SIG WAVES...........2 TO 4 FEET.
OCNL WAVES..........AROUND 5 FEET EARLY IN THE AFTERNOON.
.FRIDAY NIGHT...
WEATHER.............MOSTLY CLOUDY WITH CHANCE OF SHOWERS.
SFC WINDS...........NORTHEAST 15 TO 20 KNOTS.
100-FT WINDS........NORTHEAST 20 TO 25 KNOTS.
SIG WAVES...........2 TO 4 FEET.
OCNL WAVES..........AROUND 5 FEET UNTIL EARLY MORNING.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...NORTHEAST WINDS 5 TO 10 KNOTS. WAVES 2 TO 4 FEET.
.SUNDAY...CHANCE OF SHOWERS. EAST WINDS 5 TO 10 KNOTS. WAVES
2 FEET OR LESS.
.MONDAY...CHANCE OF THUNDERSTORMS IN THE AFTERNOON AND EVENING.
CHANCE OF SHOWERS. EAST WINDS 5 TO 10 KNOTS. WAVES 2 FEET OR
LESS.
$$
LSZ150-121500-
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
257 AM CDT THU JUN 12 2025
.TODAY...
WEATHER.............MOSTLY SUNNY.
SFC WINDS...........NORTHEAST 15 TO 20 KNOTS.
100-FT WINDS........NORTHEAST 20 TO 25 KNOTS.
SIG WAVES...........1 TO 3 FEET BUILDING TO 2 TO 4 FEET IN THE LATE
MORNING AND AFTERNOON.
.TONIGHT...
WEATHER.............MOSTLY CLOUDY, THEN CHANCE OF SHOWERS AFTER
MIDNIGHT.
SFC WINDS...........EAST 10 TO 15 KNOTS.
100-FT WINDS........EAST 15 TO 20 KNOTS.
SIG WAVES...........2 TO 4 FEET.
.FRIDAY...
WEATHER.............CLOUDY WITH CHANCE OF SHOWERS, THEN SHOWERS
LIKELY IN THE LATE MORNING AND AFTERNOON.
SFC WINDS...........NORTHEAST 15 TO 20 KNOTS.
100-FT WINDS........NORTHEAST 20 TO 25 KNOTS.
SIG WAVES...........2 TO 4 FEET.
.FRIDAY NIGHT...
WEATHER.............MOSTLY CLOUDY WITH CHANCE OF SHOWERS.
SFC WINDS...........NORTHEAST 20 TO 25 KNOTS DECREASING TO 10 TO 15
KNOTS AFTER MIDNIGHT.
100-FT WINDS........NORTHEAST TO 30 KNOTS DECREASING TO 15 TO 20
KNOTS AFTER MIDNIGHT.
SIG WAVES...........2 TO 4 FEET.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...NORTHEAST WINDS 5 TO 10 KNOTS. WAVES 2 TO 4 FEET.
.SUNDAY...CHANCE OF SHOWERS. EAST WINDS 5 TO 10 KNOTS. WAVES
2 FEET OR LESS.
.MONDAY...CHANCE OF THUNDERSTORMS IN THE AFTERNOON AND EVENING.
CHANCE OF SHOWERS. EAST WINDS 5 TO 10 KNOTS. WAVES 2 FEET OR
LESS.
$$
LSZ121-121500-
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
257 AM CDT THU JUN 12 2025
.TODAY...
WEATHER.............MOSTLY SUNNY.
SFC WINDS...........NORTHEAST 10 TO 15 KNOTS.
100-FT WINDS........NORTHEAST 15 TO 20 KNOTS.
SIG WAVES...........1 TO 3 FEET.
.TONIGHT...
WEATHER.............CLOUDY, THEN CHANCE OF SHOWERS AFTER MIDNIGHT.
SFC WINDS...........NORTHEAST 10 TO 15 KNOTS.
100-FT WINDS........NORTHEAST 15 TO 20 KNOTS.
SIG WAVES...........1 TO 3 FEET.
.FRIDAY...
WEATHER.............SHOWERS, THEN SHOWERS LIKELY EARLY IN THE
AFTERNOON.
SFC WINDS...........NORTHEAST 15 TO 20 KNOTS.
100-FT WINDS........NORTHEAST 20 TO 25 KNOTS.
SIG WAVES...........1 TO 3 FEET.
.FRIDAY NIGHT...
WEATHER.............SHOWERS LIKELY, THEN CLOUDY WITH CHANCE OF
SHOWERS AFTER MIDNIGHT.
SFC WINDS...........NORTHEAST 15 TO 20 KNOTS.
100-FT WINDS........NORTHEAST 20 TO 25 KNOTS.
SIG WAVES...........1 TO 3 FEET.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...NORTHEAST WINDS 5 TO 10 KNOTS. WAVES 2 TO 4 FEET.
.SUNDAY...CHANCE OF SHOWERS. EAST WINDS 5 TO 10 KNOTS. WAVES
2 FEET OR LESS.
.MONDAY...CHANCE OF THUNDERSTORMS IN THE AFTERNOON AND EVENING.
CHANCE OF SHOWERS. EAST WINDS 5 TO 10 KNOTS. WAVES 2 FEET OR
LESS.
$$
LSZ148-121500-
OAK POINT TO SAXON HARBOR WI-
257 AM CDT THU JUN 12 2025
.TODAY...
WEATHER.............MOSTLY SUNNY.
SFC WINDS...........NORTHEAST 15 TO 20 KNOTS.
100-FT WINDS........NORTHEAST 20 TO 25 KNOTS.
SIG WAVES...........1 TO 3 FEET BUILDING TO 2 TO 4 FEET IN THE LATE
MORNING AND AFTERNOON.
.TONIGHT...
WEATHER.............CLOUDY, THEN CHANCE OF SHOWERS AFTER MIDNIGHT.
SFC WINDS...........EAST 10 TO 15 KNOTS.
100-FT WINDS........EAST 15 TO 20 KNOTS.
SIG WAVES...........2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET IN THE
LATE EVENING AND OVERNIGHT.
.FRIDAY...
WEATHER.............SHOWERS, THEN SHOWERS LIKELY EARLY IN THE
AFTERNOON.
SFC WINDS...........NORTHEAST 15 TO 20 KNOTS.
100-FT WINDS........NORTHEAST 20 TO 25 KNOTS.
SIG WAVES...........1 TO 3 FEET BUILDING TO 2 TO 4 FEET EARLY IN
THE AFTERNOON.
.FRIDAY NIGHT...
WEATHER.............SHOWERS LIKELY, THEN MOSTLY CLOUDY WITH CHANCE
OF SHOWERS IN THE LATE EVENING AND OVERNIGHT.
SFC WINDS...........NORTHEAST 15 TO 20 KNOTS.
100-FT WINDS........NORTHEAST 20 TO 25 KNOTS.
SIG WAVES...........2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET AFTER
MIDNIGHT.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...NORTHEAST WINDS 5 TO 10 KNOTS. WAVES 2 TO 4 FEET.
.SUNDAY...CHANCE OF SHOWERS. EAST WINDS 5 TO 10 KNOTS. WAVES
2 FEET OR LESS.
.MONDAY...CHANCE OF THUNDERSTORMS IN THE AFTERNOON AND EVENING.
CHANCE OF SHOWERS. EAST WINDS 5 TO 10 KNOTS. WAVES 2 FEET OR
LESS.
$$
Occasional waves will only be displayed when values meet or exceed 5 feet.
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