419
FZUS51 KBOX 152305
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
704 PM EDT TUE SEP 15 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-161200-
704 PM EDT TUE SEP 15 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
HIGH PRES OVERHEAD TODAY BRINGING DRY CONDITIONS AND LIGHT WINDS.
HIGH THEN SHIFTS SOUTHEAST OF THE WATERS BY WED-THU AHEAD OF AN
APPROACHING COLD FRONT. COLD FRONT WILL CROSS THE WATERS THU NIGHT
INTO EARLY FRI FOLLOWED BY HIGH PRES BUILDING ACROSS THE WATERS SAT.
ANZ250-161200-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
704 PM EDT TUE SEP 15 2026
TONIGHT
SE WINDS AROUND 5 KT, BECOMING SW AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS AND S 1 FOOT AT
7 SECONDS.
WED
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT
AT 4 SECONDS AND E 1 FOOT AT 5 SECONDS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 3 SECONDS AND S 2 FT AT 3 SECONDS.
THU
W WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 7 SECONDS AND NE 2 FT AT
8 SECONDS.
THU NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT 3 SECONDS AND E
2 FT AT 7 SECONDS. A CHANCE OF SHOWERS. PATCHY FOG AFTER
MIDNIGHT.
FRI
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING N
5 TO 10 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT
AT 3 SECONDS AND S 2 FT AT 4 SECONDS. A CHANCE OF SHOWERS IN THE
MORNING.
FRI NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 4 FT.
SAT AND SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING S 5 TO 10 KT. SEAS 2 TO 4 FT.
SUN AND SUN NIGHT
SE WINDS AROUND 10 KT, BECOMING NE WITH
GUSTS UP TO 20 KT. SEAS 2 TO 4 FT. A CHANCE OF SHOWERS.
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.
ANZ251-161200-
MASSACHUSETTS BAY AND IPSWICH BAY-
704 PM EDT TUE SEP 15 2026
TONIGHT
SE WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS AND S 1 FOOT AT
3 SECONDS.
WED
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW
1 FOOT AT 2 SECONDS AND NW 1 FOOT AT 4 SECONDS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 4 SECONDS AND E 1 FOOT AT 6 SECONDS.
THU
N WINDS AROUND 5 KT, BECOMING E IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 6 SECONDS AND W 1 FOOT AT
2 SECONDS.
THU NIGHT
S WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 3 SECONDS AND E 2 FT AT
7 SECONDS. A CHANCE OF SHOWERS.
FRI AND FRI NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 4 SECONDS AND E 2 FT AT
7 SECONDS.
SAT
NE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
SAT NIGHT THROUGH SUN NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
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.
ANZ231-161200-
CAPE COD BAY-
704 PM EDT TUE SEP 15 2026
TONIGHT
SE WINDS AROUND 5 KT, BECOMING S AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS AND S 1 FOOT AT
7 SECONDS.
WED
SW WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT
IN THE AFTERNOON. WAVE DETAIL: SW 1 FOOT AT 3 SECONDS AND N
1 FOOT AT 5 SECONDS, BECOMING S 1 FOOT AT 2 SECONDS AND N 1 FOOT
AT 4 SECONDS.
WED NIGHT
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 NE 1 FOOT AT 5 SECONDS, BECOMING SW 1 FOOT AT 2 SECONDS AND
NE 1 FOOT AT 4 SECONDS.
THU
SW WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT
IN THE AFTERNOON. WAVE DETAIL: SW 1 FOOT AT 2 SECONDS AND W
1 FOOT AT 2 SECONDS, BECOMING SW 1 FOOT AT 2 SECONDS AND W 1 FOOT
AT 3 SECONDS.
THU NIGHT
SW WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 1 FOOT AT 2 SECONDS AND W 1 FOOT AT 3 SECONDS. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI
W WINDS 10 TO 15 KT, BECOMING N IN THE AFTERNOON. GUSTS UP
TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 1 FOOT AT 3 SECONDS AND
W 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
FRI NIGHT
N WINDS 10 TO 15 KT, BECOMING NE 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT.
SAT AND SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING SE AROUND 5 KT. SEAS AROUND 2 FT.
SUN AND SUN NIGHT
SE WINDS 5 TO 10 KT, BECOMING NE 10 TO 15 KT
WITH GUSTS UP TO 20 KT. SEAS AROUND 2 FT. A CHANCE OF SHOWERS.
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.
ANZ254-161200-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
704 PM EDT TUE SEP 15 2026
TONIGHT
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: N 3 FT AT 6 SECONDS AND S 1 FOOT AT
6 SECONDS.
WED
SW WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS AND SE 2 FT AT
9 SECONDS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
E 2 FT AT 7 SECONDS AND SW 1 FOOT AT 3 SECONDS.
THU
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT
AT 7 SECONDS AND SW 1 FOOT AT 3 SECONDS.
THU NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT 3 SECONDS AND E
2 FT AT 7 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI
W WINDS AROUND 15 KT, BECOMING N IN THE AFTERNOON. GUSTS
UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND
SW 2 FT AT 4 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
FRI NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 4 FT.
SAT AND SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING SE 5 TO 10 KT. SEAS 2 TO 4 FT.
SUN AND SUN NIGHT
SE WINDS 5 TO 10 KT, BECOMING NE 10 TO 15 KT
WITH GUSTS UP TO 20 KT. SEAS 2 TO 4 FT. A CHANCE OF SHOWERS.
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.
ANZ255-161200-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
704 PM EDT TUE SEP 15 2026
TONIGHT
E WINDS 5 TO 10 KT, BECOMING SE AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND S 1 FOOT AT
6 SECONDS.
WED
SW WINDS AROUND 5 KT, INCREASING TO 5 TO 10 KT IN THE
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT AT 5 SECONDS AND
N 1 FOOT AT 4 SECONDS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
E 2 FT AT 6 SECONDS AND SE 2 FT AT 9 SECONDS.
THU
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT
AT 7 SECONDS AND W 1 FOOT AT 4 SECONDS.
THU NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND W
2 FT AT 3 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI
W WINDS AROUND 15 KT, BECOMING N IN THE AFTERNOON. GUSTS
UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND
SW 3 FT AT 5 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
FRI NIGHT
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 2 TO 4 FT.
SAT AND SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING SE 5 TO 10 KT. SEAS 2 TO 3 FT.
SUN AND SUN NIGHT
SE WINDS 10 TO 15 KT, BECOMING NE 15 TO
20 KT. SEAS 3 TO 5 FT. A CHANCE OF SHOWERS.
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.
ANZ256-161200-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
704 PM EDT TUE SEP 15 2026
TONIGHT
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: NE 2 FT AT 4 SECONDS AND S 1 FOOT AT
6 SECONDS.
WED
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW
2 FT AT 9 SECONDS AND E 1 FOOT AT 5 SECONDS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 3 SECONDS AND E 2 FT AT 7 SECONDS.
THU
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW
2 FT AT 3 SECONDS AND W 2 FT AT 4 SECONDS.
THU NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 4 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 2 FT AT
7 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI
W WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT, BECOMING N IN
THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS
AND NW 2 FT AT 4 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
FRI NIGHT
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 2 TO 4 FT.
SAT AND SAT NIGHT
E WINDS 15 TO 20 KT, BECOMING SE AROUND
10 KT. SEAS 2 TO 4 FT.
SUN AND SUN NIGHT
SE WINDS 10 TO 15 KT, BECOMING NE 15 TO
20 KT. SEAS 3 TO 5 FT. A CHANCE OF SHOWERS.
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.
ANZ232-161200-
NANTUCKET SOUND-
704 PM EDT TUE SEP 15 2026
TONIGHT
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: N 1 FOOT AT 4 SECONDS AND S 1 FOOT AT
6 SECONDS.
WED
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: N
1 FOOT AT 4 SECONDS AND E 1 FOOT AT 5 SECONDS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
W 1 FOOT AT 4 SECONDS AND E 1 FOOT AT 6 SECONDS.
THU
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: W
1 FOOT AT 2 SECONDS AND SW 1 FOOT AT 3 SECONDS.
THU NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND W
2 FT AT 3 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI
W WINDS AROUND 15 KT, BECOMING N IN THE AFTERNOON. GUSTS
UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND
SW 2 FT AT 4 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
FRI NIGHT
N WINDS 10 TO 15 KT, BECOMING NE 15 TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT.
SAT AND SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING SE 5 TO 10 KT. SEAS 2 TO 3 FT.
SUN AND SUN NIGHT
SE WINDS 10 TO 15 KT, BECOMING NE 15 TO
20 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
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.
ANZ233-161200-
VINEYARD SOUND-
704 PM EDT TUE SEP 15 2026
TONIGHT
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
1 FOOT OR LESS. WAVE DETAIL: NE 1 FOOT AT 3 SECONDS AND S 1 FOOT
AT 6 SECONDS.
WED
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT IN THE
AFTERNOON. WAVE DETAIL: N 1 FOOT AT 4 SECONDS AND SE 1 FOOT AT
6 SECONDS, BECOMING W 2 FT AT 3 SECONDS AND E 1 FOOT AT
5 SECONDS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT IN THE
EVENING, THEN 1 FOOT OR LESS. WAVE DETAIL: W 2 FT AT 4 SECONDS
AND E 1 FOOT AT 5 SECONDS, BECOMING W 1 FOOT AT 3 SECONDS AND E
1 FOOT AT 5 SECONDS.
THU
SW WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT
IN THE AFTERNOON. WAVE DETAIL: W 1 FOOT AT 2 SECONDS AND SW
1 FOOT AT 3 SECONDS, BECOMING W 2 FT AT 3 SECONDS AND SW 1 FOOT
AT 3 SECONDS.
THU NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND
E 1 FOOT AT 7 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING N IN
THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS
AND SW 2 FT AT 5 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
FRI NIGHT
NE WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS AROUND 2 FT.
SAT AND SAT NIGHT
E WINDS 10 TO 15 KT, BECOMING SE 5 TO 10 KT.
SEAS AROUND 2 FT.
SUN AND SUN NIGHT
SE WINDS 10 TO 15 KT, BECOMING NE. GUSTS UP
TO 20 KT. SEAS 2 TO 4 FT. A CHANCE OF SHOWERS.
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.
ANZ234-161200-
BUZZARDS BAY-
704 PM EDT TUE SEP 15 2026
TONIGHT
E WINDS AROUND 5 KT, BECOMING S AROUND 5 KT AFTER
MIDNIGHT. SEAS 1 FOOT OR LESS. WAVE DETAIL: NE 1 FOOT AT
2 SECONDS AND S 1 FOOT AT 6 SECONDS.
WED
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS 1 FOOT OR LESS, THEN AROUND
2 FT IN THE AFTERNOON. WAVE DETAIL: NW 1 FOOT AT 4 SECONDS AND SE
1 FOOT AT 6 SECONDS, BECOMING W 2 FT AT 4 SECONDS AND E 1 FOOT AT
5 SECONDS.
WED NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS AROUND 2 FT IN THE
EVENING, THEN 1 FOOT OR LESS. WAVE DETAIL: W 2 FT AT 4 SECONDS
AND E 1 FOOT AT 5 SECONDS, BECOMING E 1 FOOT AT 4 SECONDS AND W
1 FOOT AT 4 SECONDS.
THU
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS 1 FOOT OR LESS, THEN AROUND
2 FT IN THE AFTERNOON. WAVE DETAIL: W 1 FOOT AT 2 SECONDS AND SW
1 FOOT AT 3 SECONDS, BECOMING W 2 FT AT 4 SECONDS AND SW 1 FOOT
AT 3 SECONDS.
THU NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND E 1 FOOT AT
7 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING N IN
THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT
5 SECONDS AND W 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS IN THE
MORNING.
FRI NIGHT
N WINDS 5 TO 10 KT, BECOMING NE 10 TO 15 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT.
SAT AND SAT NIGHT
NE WINDS 10 TO 15 KT, BECOMING SE 5 TO
10 KT. SEAS AROUND 2 FT.
SUN AND SUN NIGHT
SE WINDS 10 TO 15 KT, BECOMING NE. GUSTS UP
TO 20 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
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.
ANZ235-161200-
RHODE ISLAND SOUND-
704 PM EDT TUE SEP 15 2026
TONIGHT
SE WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
AROUND 2 FT THIS EVENING, THEN 1 FOOT OR LESS. WAVE DETAIL: N
1 FOOT AT 3 SECONDS AND E 1 FOOT AT 3 SECONDS, BECOMING E 1 FOOT
AT 3 SECONDS AND N 1 FOOT AT 4 SECONDS.
WED
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT IN THE
AFTERNOON. WAVE DETAIL: NW 1 FOOT AT 4 SECONDS AND SE 1 FOOT AT
5 SECONDS, BECOMING SW 2 FT AT 3 SECONDS AND E 1 FOOT AT
5 SECONDS.
WED NIGHT
SW WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT
AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT
3 SECONDS AND E 1 FOOT AT 5 SECONDS.
THU
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW
2 FT AT 3 SECONDS AND W 2 FT AT 4 SECONDS.
THU NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E
1 FOOT AT 7 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING N IN
THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS
AND SE 1 FOOT AT 8 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
FRI NIGHT
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 2 TO 3 FT.
SAT AND SAT NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING SE. SEAS 2 TO 3 FT.
SUN
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. A CHANCE OF SHOWERS.
SUN NIGHT
NE WINDS 15 TO 20 KT. SEAS 3 TO 5 FT. A CHANCE OF
SHOWERS.
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.
ANZ237-161200-
BLOCK ISLAND SOUND-
704 PM EDT TUE SEP 15 2026
TONIGHT
SE WINDS AROUND 5 KT, BECOMING S AROUND 5 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT THIS EVENING, THEN 1 FOOT OR LESS.
WAVE DETAIL: N 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 5 SECONDS.
WED
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT IN THE
AFTERNOON. WAVE DETAIL: E 1 FOOT AT 4 SECONDS AND S 1 FOOT AT
6 SECONDS, BECOMING SW 2 FT AT 3 SECONDS AND E 1 FOOT AT
5 SECONDS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 3 SECONDS AND E 1 FOOT AT 5 SECONDS.
THU
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: W 2 FT
AT 4 SECONDS AND SW 1 FOOT AT 3 SECONDS.
THU NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND
SE 1 FOOT AT 8 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI AND FRI NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND SW 2 FT AT
4 SECONDS.
SAT AND SAT NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING SE 5 TO 10 KT. SEAS 2 TO 3 FT.
SUN AND SUN NIGHT
SE WINDS 10 TO 15 KT, BECOMING NE. GUSTS UP
TO 20 KT. SEAS 2 TO 4 FT. A CHANCE OF SHOWERS.
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.
ANZ230-161200-
BOSTON HARBOR-
704 PM EDT TUE SEP 15 2026
TONIGHT
SE WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
THU
N WINDS AROUND 5 KT, BECOMING E IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
THU NIGHT
S WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS. A CHANCE OF SHOWERS.
FRI AND FRI NIGHT
N WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
SAT NIGHT THROUGH SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES AROUND
2 FT. A CHANCE OF SHOWERS.
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.
ANZ236-161200-
NARRAGANSETT BAY-
704 PM EDT TUE SEP 15 2026
TONIGHT
SE WINDS AROUND 5 KT, BECOMING SW AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS.
WED
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. WAVES 1 FOOT OR LESS, THEN AROUND
2 FT IN THE AFTERNOON.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES AROUND 2 FT IN THE
EVENING, THEN 1 FOOT OR LESS.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS, THEN AROUND
2 FT IN THE AFTERNOON.
THU NIGHT
SW WINDS 10 TO 15 KT. WAVES AROUND 2 FT. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
FRI AND FRI NIGHT
N WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
SAT
E WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
SAT NIGHT THROUGH SUN NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
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.
ANZ280-161200-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
704 PM EDT TUE SEP 15 2026
TONIGHT
SE WINDS AROUND 5 KT, BECOMING SW AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS AND S 1 FOOT AT
6 SECONDS.
WED
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT
AT 3 SECONDS AND E 2 FT AT 9 SECONDS.
WED NIGHT
SW WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT
AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 8 SECONDS
AND S 2 FT AT 4 SECONDS.
THU
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NE 2 FT
AT 7 SECONDS AND S 1 FOOT AT 3 SECONDS.
THU NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 2 FT AT
7 SECONDS. A CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS
LIKELY AFTER MIDNIGHT. PATCHY FOG AFTER MIDNIGHT.
FRI
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND NW 3 FT AT 4 SECONDS.
A CHANCE OF SHOWERS IN THE MORNING.
FRI NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT.
SAT AND SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING SE 5 TO 10 KT. SEAS 2 TO 4 FT.
SUN AND SUN NIGHT
SE WINDS 10 TO 15 KT, BECOMING E WITH GUSTS
UP TO 20 KT. SEAS 3 TO 5 FT. A CHANCE OF SHOWERS.
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.
ANZ281-161200-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
704 PM EDT TUE SEP 15 2026
TONIGHT
E WINDS 5 TO 10 KT, BECOMING SE AFTER MIDNIGHT. SEAS
2 TO 4 FT. WAVE DETAIL: N 3 FT AT 6 SECONDS AND S 1 FOOT AT
6 SECONDS.
WED
S WINDS AROUND 5 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: N 2 FT AT 6 SECONDS AND SE 2 FT AT
9 SECONDS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 8 SECONDS AND W 1 FOOT AT 4 SECONDS.
THU
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT
AT 7 SECONDS AND SW 1 FOOT AT 3 SECONDS.
THU NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND E 2 FT AT
7 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI
W WINDS 10 TO 15 KT, BECOMING N IN THE AFTERNOON. GUSTS UP
TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND W
3 FT AT 4 SECONDS. A CHANCE OF SHOWERS.
FRI NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 4 FT.
SAT AND SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING E 5 TO 10 KT. SEAS 3 TO 4 FT.
SUN AND SUN NIGHT
SE WINDS 5 TO 10 KT, BECOMING E 10 TO 15 KT
WITH GUSTS UP TO 20 KT. SEAS 3 TO 5 FT. A CHANCE OF SHOWERS.
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.
ANZ282-161200-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
704 PM EDT TUE SEP 15 2026
TONIGHT
NE WINDS 5 TO 10 KT, DIMINISHING TO AROUND 5 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS AND S
1 FOOT AT 6 SECONDS.
WED
NE WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS AND SE 1 FOOT AT
9 SECONDS.
WED NIGHT
SW WINDS AROUND 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
2 FT AT 7 SECONDS AND SW 1 FOOT AT 4 SECONDS.
THU
SW WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE DETAIL: E
2 FT AT 7 SECONDS AND SE 2 FT AT 9 SECONDS.
THU NIGHT
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: W
2 FT AT 4 SECONDS AND E 2 FT AT 7 SECONDS.
FRI
W WINDS 10 TO 15 KT, BECOMING N IN THE AFTERNOON. GUSTS UP
TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: W 3 FT AT 5 SECONDS AND E
2 FT AT 7 SECONDS. A CHANCE OF SHOWERS.
FRI NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS AROUND 3 FT.
SAT AND SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING E 5 TO 10 KT. SEAS 3 TO 4 FT.
SUN AND SUN NIGHT
SE WINDS 10 TO 15 KT, BECOMING NE WITH GUSTS
UP TO 20 KT. SEAS 4 TO 6 FT. A CHANCE OF SHOWERS.
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.
ANZ283-161200-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
704 PM EDT TUE SEP 15 2026
TONIGHT
E WINDS 5 TO 10 KT, DIMINISHING TO AROUND 5 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS AND S
1 FOOT AT 6 SECONDS.
WED
NE WINDS AROUND 5 KT, BECOMING SW IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 6 SECONDS AND NW 1 FOOT AT
3 SECONDS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
E 2 FT AT 7 SECONDS AND SE 2 FT AT 9 SECONDS.
THU
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT
AT 7 SECONDS AND SW 1 FOOT AT 3 SECONDS.
THU NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND W
2 FT AT 4 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI
W WINDS AROUND 15 KT, BECOMING N IN THE AFTERNOON. GUSTS
UP TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: W 3 FT AT 5 SECONDS AND
E 2 FT AT 7 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
FRI NIGHT
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 3 TO 4 FT.
SAT AND SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING SE. SEAS 3 TO 4 FT.
SUN AND SUN NIGHT
SE WINDS 10 TO 15 KT, BECOMING E 15 TO
20 KT. SEAS 4 TO 6 FT. A CHANCE OF SHOWERS.
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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