200
FZUS51 KBOX 081104
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
704 AM EDT TUE SEP 8 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-090000-
704 AM EDT TUE SEP 8 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
HIGH PRES WILL BE IN CONTROL OF OUR WATERS TODAY INTO TONIGHT. THIS
HIGH WILL THEN MOVE OFF THE COAST ON WED AHEAD OF AN APPROACHING
COLD FRONT WED NIGHT INTO THU. GUSTY SW WINDS WILL DEVELOP AHEAD OF
THIS COLD FRONT UNTIL IT CROSSES THE REGION LATER THU INTO THU
NIGHT. HIGH PRES THEN BUILDS ACROSS THE WATERS FRI INTO SAT.
ANZ250-090000-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
704 AM EDT TUE SEP 8 2026
TODAY
NW WINDS 10 TO 15 KT, BECOMING NE 5 TO 10 KT THIS
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND
E 1 FOOT AT 9 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: W
1 FOOT AT 3 SECONDS AND N 1 FOOT AT 3 SECONDS.
WED
SE WINDS 10 TO 15 KT, BECOMING S 15 TO 20 KT WITH GUSTS UP
TO 25 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT
AT 4 SECONDS AND E 1 FOOT AT 9 SECONDS.
WED NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, BECOMING
SW 20 TO 25 KT WITH GUSTS UP TO 35 KT AFTER MIDNIGHT. SEAS 3 TO
5 FT. WAVE DETAIL: SE 5 FT AT 5 SECONDS AND E 1 FOOT AT
9 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
SW WINDS 20 TO 25 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW
5 FT AT 5 SECONDS AND SE 2 FT AT 9 SECONDS. A CHANCE OF SHOWERS
IN THE MORNING.
THU NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 3 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND SE 2 FT AT
9 SECONDS.
FRI THROUGH SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ251-090000-
MASSACHUSETTS BAY AND IPSWICH BAY-
704 AM EDT TUE SEP 8 2026
TODAY
NW WINDS 10 TO 15 KT, BECOMING E 5 TO 10 KT THIS
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: NW 1 FOOT AT 2 SECONDS
AND NE 1 FOOT AT 3 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE DETAIL:
NE 1 FOOT AT 2 SECONDS AND SW 1 FOOT AT 2 SECONDS.
WED
SE WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP
TO 25 KT IN THE AFTERNOON. SEAS 1 FOOT OR LESS, THEN 2 TO 3 FT IN
THE AFTERNOON. WAVE DETAIL: SE 1 FOOT AT 3 SECONDS AND E 1 FOOT
AT 9 SECONDS, BECOMING SE 2 FT AT 4 SECONDS AND E 1 FOOT AT
9 SECONDS.
WED NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
AROUND 3 FT. WAVE DETAIL: SE 3 FT AT 5 SECONDS AND E 1 FOOT AT
9 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
SW WINDS 10 TO 15 KT. GUSTS UP TO 30 KT, DECREASING TO
20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT
4 SECONDS AND SE 1 FOOT AT 5 SECONDS. A CHANCE OF SHOWERS IN THE
MORNING.
THU NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND SE
1 FOOT AT 5 SECONDS.
FRI THROUGH SAT NIGHT
S WINDS 5 TO 10 KT WITH GUSTS UP TO
20 KT. SEAS AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ231-090000-
CAPE COD BAY-
704 AM EDT TUE SEP 8 2026
...GALE WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY
MORNING...
TODAY
NW WINDS 10 TO 15 KT, BECOMING N 5 TO 10 KT THIS
AFTERNOON. SEAS AROUND 2 FT THIS MORNING, THEN 1 FOOT OR LESS.
WAVE DETAIL: N 1 FOOT AT 4 SECONDS AND E 1 FOOT AT 9 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE DETAIL:
N 1 FOOT AT 3 SECONDS AND E 1 FOOT AT 9 SECONDS.
WED
SE WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP
TO 25 KT IN THE AFTERNOON. SEAS 1 FOOT OR LESS, THEN 2 TO 3 FT IN
THE AFTERNOON. WAVE DETAIL: SE 1 FOOT AT 3 SECONDS AND E 1 FOOT
AT 10 SECONDS, BECOMING S 1 FOOT AT 3 SECONDS AND E 1 FOOT AT
3 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT. GUSTS UP TO 25 KT, INCREASING
TO 35 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT, BUILDING TO 4 TO 6 FT
AFTER MIDNIGHT. WAVE DETAIL: S 2 FT AT 3 SECONDS AND E 1 FOOT AT
4 SECONDS, BECOMING SW 3 FT AT 4 SECONDS AND E 1 FOOT AT
4 SECONDS.
THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 35 KT, DIMINISHING
TO 10 TO 15 KT WITH GUSTS UP TO 25 KT IN THE AFTERNOON. SEAS 3 TO
5 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 1 FOOT AT
5 SECONDS. A CHANCE OF SHOWERS.
THU NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT,
BECOMING NW 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE
DETAIL: W 2 FT AT 3 SECONDS AND SE 1 FOOT AT 5 SECONDS.
FRI THROUGH SAT NIGHT
S WINDS 5 TO 10 KT WITH GUSTS UP TO
20 KT. SEAS AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ254-090000-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
704 AM EDT TUE SEP 8 2026
TODAY
NW WINDS 10 TO 15 KT, BECOMING N 5 TO 10 KT THIS
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: NW 2 FT AT 4 SECONDS
AND E 2 FT AT 9 SECONDS.
TONIGHT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NW
1 FOOT AT 4 SECONDS AND E 1 FOOT AT 9 SECONDS.
WED
S WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT 3 SECONDS AND NE 1 FOOT AT
3 SECONDS.
WED NIGHT
S WINDS 15 TO 20 KT, BECOMING SW 20 TO 25 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT
AT 5 SECONDS AND NE 1 FOOT AT 4 SECONDS.
THU
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SW
5 FT AT 6 SECONDS AND SE 2 FT AT 9 SECONDS. A CHANCE OF SHOWERS
IN THE MORNING.
THU NIGHT
SW WINDS 15 TO 20 KT, BECOMING NW AROUND 10 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 4 TO 6 FT, SUBSIDING TO 2 TO
4 FT AFTER MIDNIGHT. WAVE DETAIL: SW 4 FT AT 6 SECONDS AND SE
2 FT AT 9 SECONDS, BECOMING W 3 FT AT 6 SECONDS AND SE 2 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
FRI AND FRI NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING W AROUND 5 KT. SEAS 2 TO 4 FT.
SAT AND SAT NIGHT
SE WINDS 5 TO 10 KT, BECOMING S. SEAS AROUND
2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ255-090000-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
704 AM EDT TUE SEP 8 2026
TODAY
NW WINDS 10 TO 15 KT, BECOMING W 5 TO 10 KT THIS
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND E
2 FT AT 9 SECONDS.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING SE AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND NE 1 FOOT AT
4 SECONDS.
WED
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND E 1 FOOT AT
3 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
INCREASING TO 20 TO 25 KT WITH GUSTS UP TO 35 KT AFTER MIDNIGHT.
SEAS 3 TO 4 FT, BUILDING TO 4 TO 6 FT AFTER MIDNIGHT. WAVE
DETAIL: SW 4 FT AT 5 SECONDS AND NE 1 FOOT AT 4 SECONDS, BECOMING
SW 6 FT AT 7 SECONDS AND E 1 FOOT AT 4 SECONDS.
THU
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 5 TO
8 FT. WAVE DETAIL: SW 7 FT AT 8 SECONDS AND SE 6 FT AT 9 SECONDS.
A CHANCE OF SHOWERS.
THU NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT,
BECOMING W 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT.
SEAS 5 TO 7 FT, SUBSIDING TO 3 TO 5 FT AFTER MIDNIGHT. WAVE
DETAIL: SW 7 FT AT 8 SECONDS AND SE 2 FT AT 9 SECONDS, BECOMING
SW 5 FT AT 7 SECONDS AND SE 1 FOOT AT 10 SECONDS. A CHANCE OF
SHOWERS.
FRI AND FRI NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING SE AROUND 5 KT. SEAS 2 TO 4 FT.
SAT AND SAT NIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ256-090000-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
704 AM EDT TUE SEP 8 2026
TODAY
NW WINDS AROUND 10 KT, BECOMING W THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND NE 1 FOOT AT
5 SECONDS.
TONIGHT
SW WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND
NE 1 FOOT AT 5 SECONDS.
WED
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 25 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW
3 FT AT 4 SECONDS AND E 1 FOOT AT 2 SECONDS.
WED NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS
3 TO 5 FT, BUILDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: SW
5 FT AT 5 SECONDS AND E 1 FOOT AT 4 SECONDS, BECOMING SW 7 FT AT
7 SECONDS AND E 1 FOOT AT 4 SECONDS.
THU
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 6 TO
8 FT. WAVE DETAIL: SW 8 FT AT 8 SECONDS AND SE 8 FT AT 9 SECONDS.
A CHANCE OF SHOWERS.
THU NIGHT
SW WINDS 15 TO 20 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 5 TO 7 FT, SUBSIDING TO 4 TO
5 FT AFTER MIDNIGHT. WAVE DETAIL: SW 6 FT AT 8 SECONDS AND SE
3 FT AT 10 SECONDS, BECOMING SW 5 FT AT 7 SECONDS AND NE 1 FOOT
AT 4 SECONDS. A CHANCE OF SHOWERS.
FRI AND FRI NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING N 5 TO 10 KT. SEAS 2 TO 4 FT.
SAT AND SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING S. SEAS AROUND
2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ232-090000-
NANTUCKET SOUND-
704 AM EDT TUE SEP 8 2026
...GALE WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY
MORNING...
TODAY
NW WINDS 10 TO 15 KT, BECOMING N 5 TO 10 KT THIS
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: W 1 FOOT AT 3 SECONDS
AND NE 1 FOOT AT 6 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE DETAIL:
NE 1 FOOT AT 4 SECONDS AND SW 1 FOOT AT 4 SECONDS.
WED
S WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT AT 3 SECONDS AND E 1 FOOT AT
10 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
INCREASING TO 20 TO 25 KT WITH GUSTS UP TO 35 KT AFTER MIDNIGHT.
SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND E 1 FOOT AT
4 SECONDS.
THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 35 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND E 1 FOOT AT
5 SECONDS. A CHANCE OF SHOWERS.
THU NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 30 KT IN THE
EVENING. SEAS 2 TO 4 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND S
1 FOOT AT 8 SECONDS. A CHANCE OF SHOWERS.
FRI THROUGH SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ233-090000-
VINEYARD SOUND-
704 AM EDT TUE SEP 8 2026
...GALE WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY
MORNING...
TODAY
NW WINDS AROUND 10 KT, BECOMING SW THIS AFTERNOON. SEAS
1 FOOT OR LESS. WAVE DETAIL: W 1 FOOT AT 3 SECONDS AND NE 1 FOOT
AT 5 SECONDS.
TONIGHT
S WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE DETAIL:
SW 1 FOOT AT 4 SECONDS AND NE 1 FOOT AT 4 SECONDS.
WED
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 25 KT IN THE AFTERNOON. SEAS 1 FOOT OR LESS, THEN 2 TO 3 FT
IN THE AFTERNOON. WAVE DETAIL: E 1 FOOT AT 3 SECONDS AND SW
1 FOOT AT 4 SECONDS, BECOMING SW 2 FT AT 4 SECONDS AND E 1 FOOT
AT 2 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
INCREASING TO 20 TO 25 KT WITH GUSTS UP TO 35 KT AFTER MIDNIGHT.
SEAS 3 TO 4 FT, BUILDING TO 4 TO 6 FT AFTER MIDNIGHT. WAVE
DETAIL: SW 4 FT AT 5 SECONDS AND E 1 FOOT AT 4 SECONDS, BECOMING
SW 6 FT AT 6 SECONDS AND SE 1 FOOT AT 4 SECONDS.
THU
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 35 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SW
6 FT AT 8 SECONDS AND SE 4 FT AT 6 SECONDS. A CHANCE OF SHOWERS.
THU NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, BECOMING
NW AROUND 10 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT, SUBSIDING TO 2 TO
3 FT AFTER MIDNIGHT. WAVE DETAIL: SW 5 FT AT 8 SECONDS AND SE
2 FT AT 14 SECONDS, BECOMING SW 3 FT AT 7 SECONDS AND SE 1 FOOT
AT 13 SECONDS. A CHANCE OF SHOWERS.
FRI THROUGH SAT NIGHT
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ234-090000-
BUZZARDS BAY-
704 AM EDT TUE SEP 8 2026
...GALE WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY
MORNING...
TODAY
NW WINDS 5 TO 10 KT, BECOMING SW THIS AFTERNOON. SEAS
1 FOOT OR LESS. WAVE DETAIL: W 1 FOOT AT 3 SECONDS AND N 1 FOOT
AT 4 SECONDS.
TONIGHT
SE WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: SW 1 FOOT AT 4 SECONDS AND NE 1 FOOT AT 4 SECONDS.
WED
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 25 KT IN THE AFTERNOON. SEAS 1 FOOT OR LESS, THEN 2 TO 3 FT
IN THE AFTERNOON. WAVE DETAIL: SE 1 FOOT AT 4 SECONDS AND SE
1 FOOT AT 9 SECONDS, BECOMING SW 2 FT AT 3 SECONDS AND E 1 FOOT
AT 2 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT. GUSTS UP TO 25 KT, INCREASING
TO 35 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT, BUILDING TO 4 TO 6 FT
AFTER MIDNIGHT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 1 FOOT AT
4 SECONDS, BECOMING SW 5 FT AT 6 SECONDS AND SE 2 FT AT
10 SECONDS.
THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 35 KT. SEAS 4 TO
6 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND SE 4 FT AT 8 SECONDS.
A CHANCE OF SHOWERS.
THU NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 30 KT, BECOMING
NW AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT
8 SECONDS AND SE 4 FT AT 13 SECONDS. A CHANCE OF SHOWERS.
FRI THROUGH SAT NIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ235-090000-
RHODE ISLAND SOUND-
704 AM EDT TUE SEP 8 2026
TODAY
NW WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT THIS
AFTERNOON. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT THIS AFTERNOON.
WAVE DETAIL: W 1 FOOT AT 3 SECONDS AND NE 1 FOOT AT 4 SECONDS,
BECOMING SW 1 FOOT AT 4 SECONDS AND N 1 FOOT AT 4 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW
1 FOOT AT 4 SECONDS AND NE 1 FOOT AT 4 SECONDS.
WED
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 25 KT IN THE AFTERNOON. SEAS 1 FOOT OR LESS, THEN 2 TO 3 FT
IN THE AFTERNOON. WAVE DETAIL: NE 1 FOOT AT 3 SECONDS AND SW
1 FOOT AT 4 SECONDS, BECOMING S 2 FT AT 4 SECONDS AND NE 1 FOOT
AT 3 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
INCREASING TO 20 TO 25 KT WITH GUSTS UP TO 35 KT AFTER MIDNIGHT.
SEAS 3 TO 4 FT, BUILDING TO 4 TO 6 FT AFTER MIDNIGHT. WAVE
DETAIL: SW 4 FT AT 5 SECONDS AND E 1 FOOT AT 4 SECONDS, BECOMING
SW 6 FT AT 7 SECONDS AND SE 4 FT AT 10 SECONDS.
THU
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 35 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SW
7 FT AT 8 SECONDS AND E 1 FOOT AT 5 SECONDS. A CHANCE OF SHOWERS.
THU NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, BECOMING
NW AROUND 10 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT, SUBSIDING TO 3 TO
4 FT AFTER MIDNIGHT. WAVE DETAIL: SW 6 FT AT 8 SECONDS AND S 5 FT
AT 10 SECONDS, BECOMING SW 4 FT AT 7 SECONDS AND SE 2 FT AT
10 SECONDS. A CHANCE OF SHOWERS.
FRI THROUGH SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ237-090000-
BLOCK ISLAND SOUND-
704 AM EDT TUE SEP 8 2026
TODAY
NW WINDS 5 TO 10 KT, BECOMING W THIS AFTERNOON. SEAS
1 FOOT OR LESS. WAVE DETAIL: N 1 FOOT AT 3 SECONDS AND W 1 FOOT
AT 3 SECONDS.
TONIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT IN THE EVENING,
THEN 1 FOOT OR LESS. WAVE DETAIL: SW 1 FOOT AT 3 SECONDS AND SE
1 FOOT AT 9 SECONDS, BECOMING SW 1 FOOT AT 3 SECONDS AND N 1 FOOT
AT 4 SECONDS.
WED
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP
TO 25 KT IN THE AFTERNOON. SEAS 1 FOOT OR LESS, THEN 2 TO 3 FT IN
THE AFTERNOON. WAVE DETAIL: NE 1 FOOT AT 3 SECONDS AND S 1 FOOT
AT 3 SECONDS, BECOMING S 2 FT AT 3 SECONDS AND NE 1 FOOT AT
3 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT
AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 4 FT, BUILDING TO
4 TO 6 FT AFTER MIDNIGHT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND E
1 FOOT AT 4 SECONDS, BECOMING SW 5 FT AT 6 SECONDS AND SE 1 FOOT
AT 4 SECONDS.
THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND SE 4 FT AT
10 SECONDS. A CHANCE OF SHOWERS.
THU NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT, BECOMING
NW 5 TO 10 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: S 4 FT
AT 8 SECONDS AND SW 3 FT AT 7 SECONDS. A CHANCE OF SHOWERS.
FRI THROUGH SAT NIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ230-090000-
BOSTON HARBOR-
704 AM EDT TUE SEP 8 2026
TODAY
NW WINDS 5 TO 10 KT, BECOMING E THIS AFTERNOON. WAVES
1 FOOT OR LESS.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
WED
SE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 FOOT OR LESS, THEN AROUND 2 FT IN THE AFTERNOON.
WED NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. WAVES
AROUND 2 FT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. WAVES AROUND
2 FT. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE
EVENING. WAVES AROUND 2 FT IN THE EVENING, THEN 1 FOOT OR LESS.
FRI THROUGH SAT NIGHT
S WINDS 5 TO 10 KT WITH GUSTS UP TO
20 KT. WAVES AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ236-090000-
NARRAGANSETT BAY-
704 AM EDT TUE SEP 8 2026
TODAY
NW WINDS 5 TO 10 KT, BECOMING W THIS AFTERNOON. WAVES
1 FOOT OR LESS.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
WED
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 25 KT IN THE AFTERNOON. WAVES 1 FOOT OR LESS, THEN 2 TO
3 FT IN THE AFTERNOON.
WED NIGHT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. GUSTS UP TO 30 KT. WAVES 3 TO 4 FT.
THU
SW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. WAVES 2 TO 4 FT. A CHANCE OF
SHOWERS.
THU NIGHT
W WINDS 5 TO 10 KT WITH GUSTS UP TO 25 KT, BECOMING
NW AFTER MIDNIGHT. WAVES 2 TO 3 FT.
FRI THROUGH SAT NIGHT
S WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ280-090000-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
704 AM EDT TUE SEP 8 2026
TODAY
NW WINDS 10 TO 15 KT, BECOMING N THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: NW 2 FT AT 4 SECONDS AND E 1 FOOT AT
9 SECONDS.
TONIGHT
SE WINDS AROUND 5 KT, INCREASING TO 5 TO 10 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND
E 1 FOOT AT 9 SECONDS.
WED
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING S
15 TO 20 KT WITH GUSTS UP TO 30 KT IN THE AFTERNOON. SEAS 2 TO
4 FT. WAVE DETAIL: SE 4 FT AT 4 SECONDS AND E 1 FOOT AT
9 SECONDS.
WED NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 5 FT, BUILDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: S
4 FT AT 5 SECONDS AND E 1 FOOT AT 5 SECONDS, BECOMING SE 7 FT AT
6 SECONDS AND SE 1 FOOT AT 10 SECONDS. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
THU
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SE
7 FT AT 6 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 30 KT, BECOMING
NW WITH GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE
DETAIL: W 5 FT AT 6 SECONDS AND SE 3 FT AT 8 SECONDS.
FRI AND FRI NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
DIMINISHING TO 5 TO 10 KT. SEAS 2 TO 4 FT.
SAT AND SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT
WITH GUSTS UP TO 20 KT. SEAS AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ281-090000-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
704 AM EDT TUE SEP 8 2026
TODAY
NW WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT THIS
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT AT 4 SECONDS AND
E 2 FT AT 10 SECONDS.
TONIGHT
NE WINDS AROUND 5 KT, BECOMING E AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND E 2 FT AT
9 SECONDS.
WED
SE WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND E 2 FT AT
9 SECONDS.
WED NIGHT
S WINDS 15 TO 20 KT, BECOMING SW 20 TO 25 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 2 TO 4 FT, BUILDING TO 4 TO
6 FT AFTER MIDNIGHT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND NE
1 FOOT AT 4 SECONDS, BECOMING SW 5 FT AT 6 SECONDS AND SE 2 FT AT
9 SECONDS.
THU
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 35 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SW
7 FT AT 7 SECONDS AND E 5 FT AT 8 SECONDS.
THU NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT,
BECOMING W 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT.
SEAS 5 TO 7 FT. WAVE DETAIL: SW 7 FT AT 8 SECONDS AND S 6 FT AT
8 SECONDS. A CHANCE OF SHOWERS.
FRI
NW WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT.
FRI NIGHT AND SAT
NW WINDS AROUND 5 KT, BECOMING E. SEAS 2 TO
4 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ282-090000-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
704 AM EDT TUE SEP 8 2026
TODAY
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
3 FT AT 9 SECONDS AND W 2 FT AT 4 SECONDS.
TONIGHT
NW WINDS 5 TO 10 KT, BECOMING SE AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND E 2 FT AT
10 SECONDS.
WED
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND E 2 FT AT
9 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 4 FT, BUILDING TO 4 TO 6 FT AFTER MIDNIGHT. WAVE DETAIL: SW
4 FT AT 5 SECONDS AND E 2 FT AT 9 SECONDS, BECOMING SW 6 FT AT
7 SECONDS AND SE 2 FT AT 9 SECONDS.
THU
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 6 TO
9 FT. WAVE DETAIL: SW 9 FT AT 8 SECONDS AND E 2 FT AT 9 SECONDS.
A CHANCE OF SHOWERS IN THE AFTERNOON.
THU NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT,
BECOMING W 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT.
SEAS 6 TO 8 FT, SUBSIDING TO 5 TO 6 FT AFTER MIDNIGHT. WAVE
DETAIL: SW 8 FT AT 8 SECONDS AND SE 1 FOOT AT 10 SECONDS,
BECOMING SW 6 FT AT 8 SECONDS AND SE 1 FOOT AT 10 SECONDS.
SHOWERS LIKELY.
FRI
N WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. A CHANCE OF SHOWERS.
FRI NIGHT THROUGH SAT NIGHT
SE WINDS 5 TO 10 KT. SEAS 2 TO
3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ283-090000-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
704 AM EDT TUE SEP 8 2026
TODAY
NW WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W
2 FT AT 4 SECONDS AND E 2 FT AT 9 SECONDS.
TONIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: W
2 FT AT 4 SECONDS AND E 2 FT AT 10 SECONDS.
WED
S WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT WITH GUSTS UP
TO 25 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 4 SECONDS AND NE 1 FOOT AT 3 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT
AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT, BUILDING TO
5 TO 8 FT AFTER MIDNIGHT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND E
1 FOOT AT 9 SECONDS, BECOMING SW 8 FT AT 7 SECONDS AND SE 1 FOOT
AT 9 SECONDS.
THU
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 7 TO
9 FT. WAVE DETAIL: SW 9 FT AT 8 SECONDS AND E 2 FT AT 9 SECONDS.
A CHANCE OF SHOWERS.
THU NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT,
BECOMING W 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT.
SEAS 5 TO 7 FT. WAVE DETAIL: SW 7 FT AT 8 SECONDS AND N 1 FOOT AT
3 SECONDS. SHOWERS LIKELY, MAINLY IN THE EVENING.
FRI
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT.
FRI NIGHT THROUGH SAT NIGHT
SE WINDS 5 TO 10 KT. SEAS 2 TO
3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
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