723
FZUS51 KBOX 041104
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
703 AM EDT FRI SEP 4 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-050000-
703 AM EDT FRI SEP 4 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
LOW PRES AND ITS ASSOCIATED COLD FRONT WILL CROSS THE WATERS INTO
TONIGHT. THIS LOW PRES SYSTEM WILL INTENSIFY AS IT LIFTS NE TOWARDS
THE CANADIAN MARITIMES FRI AND SHIFT FARTHER E BY THE HOLIDAY
WEEKEND. HIGH PRES MOVES TOWARDS THE WATERS FOR THE START OF NEXT
WEEK.
ANZ250-050000-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
703 AM EDT FRI SEP 4 2026
TODAY
NW WINDS AROUND 5 KT, BECOMING E AROUND 5 KT THIS
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 8 SECONDS AND
SW 1 FOOT AT 4 SECONDS. PATCHY FOG THIS MORNING WITH VSBY 1 NM OR
LESS.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: E 3 FT AT 7 SECONDS AND SW 1 FOOT AT
5 SECONDS.
SAT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: NE 3 FT AT 7 SECONDS AND NW 2 FT AT 3 SECONDS.
SAT NIGHT
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL:
NE 4 FT AT 7 SECONDS AND SE 4 FT AT 9 SECONDS.
SUN
N WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 4 TO 6 FT. WAVE DETAIL: NE
5 FT AT 8 SECONDS AND W 2 FT AT 7 SECONDS.
SUN NIGHT
NW WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: NE
5 FT AT 9 SECONDS AND SW 1 FOOT AT 6 SECONDS.
MON AND MON NIGHT
NW WINDS 5 TO 10 KT, BECOMING W. SEAS 2 TO
4 FT.
TUE AND TUE NIGHT
NW 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.
ANZ251-050000-
MASSACHUSETTS BAY AND IPSWICH BAY-
703 AM EDT FRI SEP 4 2026
TODAY
NW WINDS AROUND 5 KT, BECOMING SE THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 8 SECONDS AND SW 1 FOOT AT
4 SECONDS. PATCHY FOG THIS MORNING WITH VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 7 SECONDS AND E 1 FOOT AT
4 SECONDS.
SAT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
2 FT. WAVE DETAIL: N 2 FT AT 3 SECONDS AND E 2 FT AT 7 SECONDS.
SAT NIGHT
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT
7 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
SUN
N WINDS 15 TO 20 KT, BECOMING NE 10 TO 15 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT AT 8 SECONDS AND
SW 2 FT AT 12 SECONDS.
SUN NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: NE
4 FT AT 8 SECONDS AND S 1 FOOT AT 6 SECONDS.
MON THROUGH TUE NIGHT
NW 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.
ANZ231-050000-
CAPE COD BAY-
703 AM EDT FRI SEP 4 2026
TODAY
NW WINDS AROUND 5 KT, BECOMING NE AROUND 5 KT THIS
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT AT 10 SECONDS
AND SW 1 FOOT AT 2 SECONDS. PATCHY FOG THIS MORNING WITH VSBY
1 NM OR LESS.
TONIGHT
S WINDS AROUND 5 KT, BECOMING NW AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 8 SECONDS AND SW 1 FOOT AT
4 SECONDS.
SAT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: E 3 FT AT 8 SECONDS AND NE 2 FT AT 7 SECONDS.
SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 10 SECONDS AND N 2 FT AT
4 SECONDS.
SUN
N WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. WAVE DETAIL: E 4 FT AT 8 SECONDS AND N 3 FT AT 5 SECONDS.
SUN NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
3 FT AT 7 SECONDS.
MON THROUGH TUE NIGHT
W 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.
ANZ254-050000-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
703 AM EDT FRI SEP 4 2026
TODAY
N WINDS AROUND 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT
AT 7 SECONDS AND SE 3 FT AT 8 SECONDS. PATCHY FOG. VSBY 1 NM OR
LESS.
TONIGHT
SW WINDS AROUND 5 KT, BECOMING NW AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: E 2 FT AT 7 SECONDS AND SW 1 FOOT AT
4 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM.
SAT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS AND E 3 FT AT 7 SECONDS.
SAT NIGHT
NE WINDS AROUND 15 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT. WAVE DETAIL: NE 5 FT AT 7 SECONDS AND E 5 FT AT
9 SECONDS.
SUN AND SUN NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: NE 6 FT AT 9 SECONDS AND SW 1 FOOT
AT 6 SECONDS.
MON
NW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. WAVE DETAIL: NE 5 FT
AT 6 SECONDS AND NE 5 FT AT 9 SECONDS.
MON NIGHT THROUGH TUE NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO
4 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.
ANZ255-050000-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
703 AM EDT FRI SEP 4 2026
TODAY
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 4 SECONDS AND SE 2 FT AT 7 SECONDS. PATCHY FOG THIS
MORNING. A SLIGHT CHANCE OF SHOWERS THIS MORNING WITH VSBY 1 TO
3 NM.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND
SE 2 FT AT 7 SECONDS.
SAT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT AT 4 SECONDS AND E 2 FT AT
7 SECONDS.
SAT NIGHT
NE WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL:
NE 3 FT AT 4 SECONDS AND E 3 FT AT 8 SECONDS.
SUN
N WINDS 15 TO 20 KT. SEAS 3 TO 5 FT. WAVE DETAIL: NE 4 FT
AT 5 SECONDS AND E 4 FT AT 8 SECONDS.
SUN NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 3 TO 5 FT. WAVE DETAIL: E 4 FT AT 8 SECONDS AND N
3 FT AT 4 SECONDS.
MON THROUGH TUE NIGHT
W WINDS 10 TO 15 KT. SEAS 2 TO 4 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.
ANZ256-050000-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
703 AM EDT FRI SEP 4 2026
TODAY
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT
AT 5 SECONDS AND SE 2 FT AT 7 SECONDS. PATCHY FOG THIS MORNING. A
SLIGHT CHANCE OF SHOWERS THIS MORNING WITH VSBY 1 TO 3 NM.
TONIGHT
W WINDS AROUND 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND SE 2 FT AT
7 SECONDS.
SAT
N WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT
AT 4 SECONDS AND E 2 FT AT 7 SECONDS.
SAT NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS AND S
2 FT AT 7 SECONDS.
SUN
NE WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS AND
E 2 FT AT 8 SECONDS.
SUN NIGHT
N WINDS 10 TO 15 KT, BECOMING NW 5 TO 10 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: NE 3 FT AT 5 SECONDS AND
NW 2 FT AT 5 SECONDS.
MON THROUGH TUE NIGHT
SW 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.
ANZ232-050000-
NANTUCKET SOUND-
703 AM EDT FRI SEP 4 2026
TODAY
NW WINDS 5 TO 10 KT, BECOMING N THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: W 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT
7 SECONDS. PATCHY FOG THIS MORNING WITH VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 4 SECONDS
AND SE 1 FOOT AT 7 SECONDS.
SAT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: NW 2 FT AT 3 SECONDS AND E 2 FT AT 7 SECONDS.
SAT NIGHT
NE WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL:
NE 3 FT AT 4 SECONDS AND W 1 FOOT AT 6 SECONDS.
SUN
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS AND E 2 FT AT 8 SECONDS.
SUN NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
NW 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
2 FT AT 3 SECONDS AND E 2 FT AT 8 SECONDS.
MON THROUGH TUE NIGHT
W 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.
ANZ233-050000-
VINEYARD SOUND-
703 AM EDT FRI SEP 4 2026
TODAY
NW WINDS AROUND 5 KT, BECOMING W THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: W 1 FOOT AT 4 SECONDS AND E 1 FOOT AT
7 SECONDS. PATCHY FOG THIS MORNING WITH VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 5 SECONDS AND SE 1 FOOT AT
7 SECONDS.
SAT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS AROUND 2 FT. WAVE DETAIL: NW 1 FOOT AT 4 SECONDS AND SE
1 FOOT AT 8 SECONDS.
SAT NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: NE 1 FOOT AT 3 SECONDS
AND S 1 FOOT AT 7 SECONDS.
SUN
N 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 1 FOOT AT
6 SECONDS.
SUN NIGHT
N WINDS 10 TO 15 KT, BECOMING NW 5 TO 10 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT IN THE EVENING, THEN 1 FOOT OR LESS.
WAVE DETAIL: NE 1 FOOT AT 3 SECONDS AND W 1 FOOT AT 6 SECONDS,
BECOMING NE 1 FOOT AT 4 SECONDS AND NW 1 FOOT AT 4 SECONDS.
MON THROUGH TUE NIGHT
W 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.
ANZ234-050000-
BUZZARDS BAY-
703 AM EDT FRI SEP 4 2026
TODAY
NW WINDS AROUND 5 KT, BECOMING SW THIS AFTERNOON. SEAS
1 FOOT OR LESS. WAVE DETAIL: W 1 FOOT AT 4 SECONDS AND E 1 FOOT
AT 7 SECONDS. PATCHY FOG THIS MORNING WITH VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
AROUND 2 FT IN THE EVENING, THEN 1 FOOT OR LESS. WAVE DETAIL: SW
1 FOOT AT 4 SECONDS AND E 1 FOOT AT 7 SECONDS, BECOMING NW 1 FOOT
AT 5 SECONDS AND E 1 FOOT AT 7 SECONDS.
SAT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS AROUND 2 FT. WAVE DETAIL: NW 1 FOOT AT 4 SECONDS AND E
1 FOOT AT 7 SECONDS.
SAT NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS AROUND 2 FT. WAVE DETAIL: NE 1 FOOT AT 3 SECONDS
AND SW 1 FOOT AT 5 SECONDS.
SUN
N 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 1 FOOT AT
6 SECONDS.
SUN NIGHT
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT IN THE EVENING,
THEN 1 FOOT OR LESS. WAVE DETAIL: NE 1 FOOT AT 3 SECONDS AND W
1 FOOT AT 6 SECONDS, BECOMING NE 1 FOOT AT 3 SECONDS AND NW
1 FOOT AT 5 SECONDS.
MON THROUGH TUE NIGHT
W WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS.
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.
ANZ235-050000-
RHODE ISLAND SOUND-
703 AM EDT FRI SEP 4 2026
TODAY
NW WINDS 5 TO 10 KT, BECOMING SW THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS AND SW 1 FOOT AT
4 SECONDS. PATCHY FOG THIS MORNING WITH VSBY 1 TO 3 NM.
TONIGHT
W WINDS AROUND 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND SE 2 FT AT
7 SECONDS.
SAT
N WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL: NW
2 FT AT 4 SECONDS AND SE 2 FT AT 8 SECONDS.
SAT NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND S
1 FOOT AT 7 SECONDS.
SUN
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 S 1 FOOT AT
7 SECONDS.
SUN NIGHT
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
NE 2 FT AT 4 SECONDS AND S 1 FOOT AT 7 SECONDS.
MON THROUGH TUE NIGHT
SE WINDS 10 TO 15 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.
ANZ237-050000-
BLOCK ISLAND SOUND-
703 AM EDT FRI SEP 4 2026
TODAY
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
2 FT AT 8 SECONDS AND SW 1 FOOT AT 4 SECONDS. PATCHY FOG THIS
MORNING. A SLIGHT CHANCE OF SHOWERS THIS MORNING WITH VSBY 1 TO
3 NM.
TONIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS AND W 1 FOOT AT
4 SECONDS.
SAT
N WINDS 5 TO 10 KT, BECOMING NE IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 8 SECONDS AND NW 1 FOOT AT
4 SECONDS.
SAT NIGHT
NE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL:
NE 2 FT AT 3 SECONDS AND S 1 FOOT AT 7 SECONDS.
SUN
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, DIMINISHING
TO 5 TO 10 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: NE
2 FT AT 4 SECONDS AND S 1 FOOT AT 7 SECONDS.
SUN NIGHT
N WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: NE 2 FT AT 4 SECONDS AND S 1 FOOT AT
7 SECONDS.
MON THROUGH TUE NIGHT
N 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.
ANZ230-050000-
BOSTON HARBOR-
703 AM EDT FRI SEP 4 2026
TODAY
NW WINDS AROUND 5 KT, BECOMING E THIS AFTERNOON. WAVES
1 FOOT OR LESS. PATCHY FOG THIS MORNING WITH VSBY 1 NM OR LESS.
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
SAT
NE WINDS 10 TO 15 KT. WAVES AROUND 2 FT.
SAT NIGHT
NE WINDS 10 TO 15 KT. WAVES AROUND 2 FT. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
SUN
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES 2 TO
3 FT.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
MON THROUGH TUE NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FOOT OR
LESS.
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.
ANZ236-050000-
NARRAGANSETT BAY-
703 AM EDT FRI SEP 4 2026
TODAY
NW WINDS 5 TO 10 KT. WAVES AROUND 2 FT. PATCHY FOG THIS
MORNING WITH VSBY 1 TO 3 NM.
TONIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. WAVES
AROUND 2 FT.
SAT
N WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
SUN
N WINDS 10 TO 15 KT. WAVES AROUND 2 FT.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES AROUND 2 FT IN THE
EVENING, THEN 1 FOOT OR LESS.
MON THROUGH TUE NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FOOT OR
LESS.
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.
ANZ280-050000-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
703 AM EDT FRI SEP 4 2026
TODAY
NW WINDS AROUND 5 KT. SEAS AROUND 3 FT. WAVE DETAIL: E
3 FT AT 7 SECONDS AND S 1 FOOT AT 4 SECONDS. PATCHY FOG. VSBY
1 NM OR LESS, INCREASING TO 1 TO 3 NM THIS AFTERNOON.
TONIGHT
W WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT WITH GUSTS
UP TO 20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT
AT 7 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM.
SAT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. WAVE DETAIL: NE 4 FT AT 6 SECONDS AND W 2 FT AT 4 SECONDS.
SAT NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. WAVE DETAIL: NE 6 FT AT 7 SECONDS AND E 6 FT AT
12 SECONDS.
SUN
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
7 FT. WAVE DETAIL: NE 6 FT AT 8 SECONDS AND SW 2 FT AT 6 SECONDS.
SUN NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
4 TO 6 FT. WAVE DETAIL: NE 6 FT AT 8 SECONDS AND SW 1 FOOT AT
6 SECONDS.
MON THROUGH TUE NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 4 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.
ANZ281-050000-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
703 AM EDT FRI SEP 4 2026
TODAY
NW WINDS AROUND 5 KT. SEAS AROUND 3 FT. WAVE DETAIL: SE
3 FT AT 7 SECONDS AND SW 1 FOOT AT 4 SECONDS. PATCHY FOG. VSBY
1 NM OR LESS.
TONIGHT
W WINDS AROUND 5 KT, BECOMING NW 10 TO 15 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: E
2 FT AT 8 SECONDS AND SW 1 FOOT AT 4 SECONDS. PATCHY FOG. VSBY
1 NM OR LESS.
SAT
N WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: NE
4 FT AT 6 SECONDS AND SW 2 FT AT 5 SECONDS. PATCHY FOG IN THE
MORNING WITH VSBY 1 NM OR LESS.
SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 5 FT, BUILDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: NE
5 FT AT 7 SECONDS AND E 2 FT AT 9 SECONDS, BECOMING NE 6 FT AT
8 SECONDS AND E 6 FT AT 10 SECONDS.
SUN AND SUN NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 5 TO 8 FT. WAVE DETAIL: NE 7 FT AT 8 SECONDS AND SW 1 FOOT
AT 6 SECONDS.
MON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 4 TO
6 FT. WAVE DETAIL: N 6 FT AT 6 SECONDS AND NE 6 FT AT 10 SECONDS.
MON NIGHT AND TUE
W WINDS 5 TO 10 KT. SEAS 3 TO 5 FT.
TUE NIGHT
NW 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.
ANZ282-050000-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
703 AM EDT FRI SEP 4 2026
TODAY
NW WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE DETAIL: SW
2 FT AT 4 SECONDS AND SE 2 FT AT 7 SECONDS. PATCHY FOG. A SLIGHT
CHANCE OF SHOWERS AND TSTMS THIS MORNING. VSBY 1 TO 3 NM,
DECREASING TO 1 NM OR LESS THIS AFTERNOON.
TONIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 5 SECONDS AND E 2 FT AT 8 SECONDS. PATCHY FOG. VSBY 1 TO
3 NM, DECREASING TO 1 NM OR LESS AFTER MIDNIGHT.
SAT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 3 TO 4 FT. WAVE DETAIL: NW 2 FT AT 5 SECONDS AND E 2 FT AT
7 SECONDS. PATCHY FOG IN THE MORNING WITH VSBY 1 NM OR LESS.
SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 5 FT. WAVE DETAIL: NE 4 FT AT 7 SECONDS AND E 3 FT AT
9 SECONDS.
SUN AND SUN NIGHT
N WINDS 15 TO 20 KT. SEAS 5 TO 7 FT. WAVE
DETAIL: NE 6 FT AT 8 SECONDS AND SW 1 FOOT AT 6 SECONDS.
MON
NW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. WAVE DETAIL: NE 6 FT
AT 9 SECONDS AND N 2 FT AT 4 SECONDS.
MON NIGHT THROUGH TUE NIGHT
NW WINDS 5 TO 10 KT. SEAS 3 TO
5 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
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.
ANZ283-050000-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
703 AM EDT FRI SEP 4 2026
TODAY
NW WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE DETAIL: SW
2 FT AT 4 SECONDS AND E 2 FT AT 7 SECONDS. PATCHY FOG THIS
MORNING. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF TSTMS THIS
MORNING WITH VSBY 1 TO 3 NM.
TONIGHT
W WINDS AROUND 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND E 2 FT AT
8 SECONDS.
SAT
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: N 3 FT
AT 5 SECONDS AND E 2 FT AT 8 SECONDS.
SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 5 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS AND E 3 FT AT
8 SECONDS.
SUN AND SUN NIGHT
N WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. WAVE
DETAIL: NE 4 FT AT 7 SECONDS AND SW 1 FOOT AT 6 SECONDS.
MON THROUGH TUE
W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. WAVE
DETAIL: NE 4 FT AT 10 SECONDS AND W 3 FT AT 4 SECONDS.
TUE NIGHT
W WINDS AROUND 10 KT. SEAS 2 TO 3 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
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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