371
FZUS51 KBOX 121405
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1004 AM EDT SUN JUL 12 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-130300-
1004 AM EDT SUN JUL 12 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
HIGH PRES SETTLES OVER NEW ENGLAND MON, THEN DRIFTS JUST OFFSHORE
MON. A VERY WARM TO HOT WESTERLY FLOW FOLLOWS FOR TUE AND WED. A
COLD FRONT THEN BREAKS THE HEAT LATE NEXT WEEK, WITH WEAK HIGH
PRESSURE TO FOLLOW.
ANZ250-130300-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
1004 AM EDT SUN JUL 12 2026
THIS AFTERNOON
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: N 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 7 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: N 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT
6 SECONDS.
MON
S WINDS 5 TO 10 KT, INCREASING TO 15 TO 20 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.
MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 4 FT. WAVE DETAIL: S 4 FT AT 4 SECONDS AND SE 1 FOOT AT
9 SECONDS.
TUE AND TUE NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 1 FOOT
AT 9 SECONDS.
WED
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND SE 1 FOOT AT
9 SECONDS.
WED NIGHT THROUGH THU 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.
ANZ251-130300-
MASSACHUSETTS BAY AND IPSWICH BAY-
1004 AM EDT SUN JUL 12 2026
THIS AFTERNOON
NE WINDS 5 TO 10 KT, BECOMING E. SEAS 1 FOOT OR
LESS. WAVE DETAIL: N 1 FOOT AT 3 SECONDS AND S 1 FOOT AT
8 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS
1 FOOT OR LESS. WAVE DETAIL: E 1 FOOT AT 3 SECONDS AND NW 1 FOOT
AT 3 SECONDS.
MON
S WINDS 5 TO 10 KT, INCREASING TO 15 TO 20 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: S 1 FOOT AT 2 SECONDS AND NE
1 FOOT AT 3 SECONDS, BECOMING SE 3 FT AT 4 SECONDS AND W 1 FOOT
AT 3 SECONDS.
MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 4 SECONDS AND SW 2 FT AT
3 SECONDS.
TUE AND TUE NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND E 1 FOOT AT
9 SECONDS.
WED THROUGH THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND E
1 FOOT AT 9 SECONDS.
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.
ANZ231-130300-
CAPE COD BAY-
1004 AM EDT SUN JUL 12 2026
THIS AFTERNOON
NE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: NW 1 FOOT AT 3 SECONDS AND S 1 FOOT AT 7 SECONDS.
TONIGHT
SE WINDS AROUND 5 KT, BECOMING SW AFTER MIDNIGHT. SEAS
1 FOOT OR LESS. WAVE DETAIL: N 1 FOOT AT 3 SECONDS AND SE 1 FOOT
AT 8 SECONDS.
MON
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: N 1 FOOT AT 3 SECONDS AND S 1 FOOT
AT 5 SECONDS, BECOMING SW 1 FOOT AT 3 SECONDS AND NE 1 FOOT AT
3 SECONDS.
MON NIGHT
SW WINDS AROUND 15 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 4 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND E 1 FOOT AT
3 SECONDS.
TUE
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, INCREASING TO
15 TO 20 KT WITH GUSTS UP TO 30 KT IN THE AFTERNOON. SEAS 2 TO
4 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 1 FOOT AT
5 SECONDS.
TUE NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 5 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 1 FOOT AT
9 SECONDS.
WED
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT.
WED NIGHT THROUGH THU NIGHT
W 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.
ANZ254-130300-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
1004 AM EDT SUN JUL 12 2026
THIS AFTERNOON
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: S 2 FT AT 7 SECONDS AND W 1 FOOT AT 2 SECONDS.
TONIGHT
E WINDS AROUND 5 KT, BECOMING S AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: N 1 FOOT AT 3 SECONDS AND S 1 FOOT AT
7 SECONDS.
MON
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT
AT 5 SECONDS AND N 1 FOOT AT 4 SECONDS.
MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND NE 1 FOOT AT
3 SECONDS.
TUE
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW
5 FT AT 5 SECONDS AND E 1 FOOT AT 5 SECONDS.
TUE NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 7 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND SE 1 FOOT AT
9 SECONDS.
WED
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT.
WED NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT.
THU AND THU 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.
ANZ255-130300-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
1004 AM EDT SUN JUL 12 2026
THIS AFTERNOON
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 2 FT AT 7 SECONDS AND NE 1 FOOT AT 3 SECONDS.
TONIGHT
E WINDS AROUND 5 KT, BECOMING S AROUND 5 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: NE 1 FOOT AT 2 SECONDS
AND NW 1 FOOT AT 7 SECONDS.
MON
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS
AND NE 1 FOOT AT 3 SECONDS.
MON 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 7 SECONDS AND
SW 2 FT AT 4 SECONDS.
TUE
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW
5 FT AT 5 SECONDS AND E 1 FOOT AT 5 SECONDS.
TUE NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 8 FT. WAVE DETAIL: W 8 FT AT 7 SECONDS AND SE 1 FOOT AT
9 SECONDS.
WED
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
8 FT.
WED NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT.
THU AND THU NIGHT
W WINDS 5 TO 10 KT, INCREASING TO 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.
ANZ256-130300-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
1004 AM EDT SUN JUL 12 2026
THIS AFTERNOON
E WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE
DETAIL: S 2 FT AT 7 SECONDS AND SE 2 FT AT 9 SECONDS.
TONIGHT
S WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE DETAIL: S
2 FT AT 7 SECONDS AND E 1 FOOT AT 2 SECONDS.
MON
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND S
2 FT AT 7 SECONDS.
MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 2 FT AT
5 SECONDS.
TUE
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: W 5 FT
AT 5 SECONDS AND E 1 FOOT AT 5 SECONDS.
TUE NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 8 FT. WAVE DETAIL: W 7 FT AT 6 SECONDS AND SE 1 FOOT AT
9 SECONDS.
WED
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT.
WED NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT.
THU AND THU NIGHT
W 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.
ANZ232-130300-
NANTUCKET SOUND-
1004 AM EDT SUN JUL 12 2026
THIS AFTERNOON
NE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: NE 1 FOOT AT 2 SECONDS AND SW 1 FOOT AT 7 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
1 FOOT OR LESS. WAVE DETAIL: E 1 FOOT AT 2 SECONDS AND W 1 FOOT
AT 6 SECONDS.
MON
S WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS 1 FOOT OR LESS, THEN 2 TO 3 FT IN
THE AFTERNOON. WAVE DETAIL: N 1 FOOT AT 3 SECONDS AND S 1 FOOT AT
7 SECONDS, BECOMING SW 2 FT AT 3 SECONDS AND NE 1 FOOT AT
4 SECONDS.
MON NIGHT
SW WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND NE 1 FOOT AT
4 SECONDS.
TUE AND TUE NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 5 SECONDS AND SE 1 FOOT
AT 10 SECONDS.
WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND SE 1 FOOT AT
9 SECONDS.
WED NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 4 FT.
THU AND THU NIGHT
W 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.
ANZ233-130300-
VINEYARD SOUND-
1004 AM EDT SUN JUL 12 2026
THIS AFTERNOON
NE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: NE 1 FOOT AT 2 SECONDS AND SW 1 FOOT AT 7 SECONDS.
TONIGHT
SE WINDS AROUND 5 KT, BECOMING SW AROUND 5 KT AFTER
MIDNIGHT. SEAS 1 FOOT OR LESS. WAVE DETAIL: E 1 FOOT AT 2 SECONDS
AND SW 1 FOOT AT 7 SECONDS.
MON
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 2 TO 3 FT
IN THE AFTERNOON. WAVE DETAIL: SW 1 FOOT AT 2 SECONDS AND NE
1 FOOT AT 3 SECONDS, BECOMING SW 2 FT AT 4 SECONDS AND NE 1 FOOT
AT 3 SECONDS.
MON NIGHT
SW WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: N 3 FT AT 3 SECONDS AND SW 3 FT AT
5 SECONDS.
TUE
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW
5 FT AT 5 SECONDS AND E 1 FOOT AT 5 SECONDS.
TUE NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 6 FT. WAVE DETAIL: SW 6 FT AT 5 SECONDS AND SE 1 FOOT AT
9 SECONDS.
WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT.
WED NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 4 FT.
THU AND THU NIGHT
W WINDS 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.
ANZ234-130300-
BUZZARDS BAY-
1004 AM EDT SUN JUL 12 2026
THIS AFTERNOON
NE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: SW 1 FOOT AT 7 SECONDS AND SE 1 FOOT AT 8 SECONDS.
TONIGHT
SE WINDS AROUND 5 KT, BECOMING SW AROUND 5 KT AFTER
MIDNIGHT. SEAS 1 FOOT OR LESS. WAVE DETAIL: E 1 FOOT AT 2 SECONDS
AND SW 1 FOOT AT 7 SECONDS.
MON
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 25 KT IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SW
2 FT AT 4 SECONDS AND NE 1 FOOT AT 3 SECONDS.
MON NIGHT
SW WINDS AROUND 15 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 3 FT. WAVE DETAIL: N 3 FT AT 3 SECONDS AND SW 3 FT AT
4 SECONDS.
TUE AND TUE NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 5 SECONDS AND SE 1 FOOT
AT 9 SECONDS.
WED THROUGH THU
W WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 1 FOOT
AT 8 SECONDS.
THU NIGHT
W WINDS 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.
ANZ235-130300-
RHODE ISLAND SOUND-
1004 AM EDT SUN JUL 12 2026
THIS AFTERNOON
NE WINDS AROUND 5 KT, BECOMING E. SEAS AROUND
2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND NE 1 FOOT AT
2 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND E 1 FOOT AT
2 SECONDS.
MON
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW
3 FT AT 3 SECONDS AND SE 1 FOOT AT 9 SECONDS.
MON NIGHT
SW WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 3 FT AT
4 SECONDS.
TUE
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 2 TO 3 FT, BUILDING TO 3 TO
5 FT IN THE AFTERNOON. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E
1 FOOT AT 5 SECONDS, BECOMING SW 5 FT AT 5 SECONDS AND SE 1 FOOT
AT 9 SECONDS.
TUE NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 6 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND SE 1 FOOT AT
9 SECONDS.
WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT.
WED NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT.
THU AND THU NIGHT
W 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.
ANZ237-130300-
BLOCK ISLAND SOUND-
1004 AM EDT SUN JUL 12 2026
THIS AFTERNOON
E WINDS AROUND 5 KT, BECOMING SE. SEAS AROUND
2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND SE 1 FOOT AT
2 SECONDS.
TONIGHT
S WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE DETAIL: S
2 FT AT 7 SECONDS AND SE 1 FOOT AT 10 SECONDS.
MON
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT
AT 7 SECONDS AND SW 1 FOOT AT 2 SECONDS.
MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND W 1 FOOT AT
3 SECONDS.
TUE
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, INCREASING TO
15 TO 20 KT WITH GUSTS UP TO 30 KT IN THE AFTERNOON. SEAS 2 TO
4 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND E 1 FOOT AT
5 SECONDS.
TUE NIGHT
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT
AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL:
SW 4 FT AT 5 SECONDS AND SE 1 FOOT AT 9 SECONDS.
WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT.
WED NIGHT THROUGH THU NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP
TO 25 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.
ANZ230-130300-
BOSTON HARBOR-
1004 AM EDT SUN JUL 12 2026
THIS AFTERNOON
E WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
TONIGHT
SE WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
MON
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.
MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES
AROUND 2 FT.
TUE AND TUE NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
WAVES AROUND 2 FT.
WED THROUGH THU NIGHT
NW WINDS 10 TO 15 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.
ANZ236-130300-
NARRAGANSETT BAY-
1004 AM EDT SUN JUL 12 2026
THIS AFTERNOON
NE WINDS AROUND 5 KT, BECOMING SE. WAVES 1 FOOT
OR LESS.
TONIGHT
S WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
MON
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. WAVES 1 FOOT OR LESS, THEN 2 TO 3 FT
IN THE AFTERNOON.
MON NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. WAVES 2 TO 3 FT.
TUE AND TUE NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT.
WAVES 2 TO 4 FT.
WED THROUGH THU NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO
25 KT. WAVES 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.
ANZ280-130300-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
1004 AM EDT SUN JUL 12 2026
THIS AFTERNOON
NE WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE
DETAIL: S 2 FT AT 7 SECONDS AND N 1 FOOT AT 3 SECONDS.
TONIGHT
S WINDS AROUND 5 KT, BECOMING SW AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: N 1 FOOT AT 3 SECONDS AND S 1 FOOT AT
7 SECONDS.
MON
S WINDS 5 TO 10 KT, INCREASING TO 15 TO 20 KT WITH GUSTS
UP TO 25 KT IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SW
3 FT AT 3 SECONDS AND NE 1 FOOT AT 3 SECONDS.
MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 5 FT. WAVE DETAIL: SE 4 FT AT 5 SECONDS AND W 3 FT AT
5 SECONDS.
TUE
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW
5 FT AT 5 SECONDS AND SE 1 FOOT AT 9 SECONDS.
TUE NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS
4 TO 6 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND SE 1 FOOT AT
9 SECONDS.
WED
W WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT.
WED NIGHT THROUGH THU 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.
ANZ281-130300-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
1004 AM EDT SUN JUL 12 2026
THIS AFTERNOON
NE WINDS AROUND 5 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: S 2 FT AT 7 SECONDS AND N 1 FOOT AT 3 SECONDS.
TONIGHT
E WINDS AROUND 5 KT, BECOMING SE AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND N 1 FOOT AT
3 SECONDS.
MON
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT
AT 7 SECONDS AND N 1 FOOT AT 3 SECONDS.
MON NIGHT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL:
SW 3 FT AT 4 SECONDS AND NE 1 FOOT AT 4 SECONDS.
TUE
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 3 TO 4 FT, BUILDING TO 4 TO
6 FT IN THE AFTERNOON. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND E
1 FOOT AT 4 SECONDS, BECOMING SW 5 FT AT 5 SECONDS AND SE 1 FOOT
AT 9 SECONDS.
TUE NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS
5 TO 8 FT. WAVE DETAIL: W 7 FT AT 7 SECONDS AND SE 1 FOOT AT
9 SECONDS.
WED
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT.
WED NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT.
THU AND THU NIGHT
W 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.
ANZ282-130300-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
1004 AM EDT SUN JUL 12 2026
THIS AFTERNOON
NE WINDS AROUND 5 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: S 2 FT AT 7 SECONDS AND E 2 FT AT 9 SECONDS.
TONIGHT
E WINDS AROUND 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
2 FT AT 8 SECONDS AND NE 1 FOOT AT 4 SECONDS.
MON
E WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 8 SECONDS AND N 1 FOOT AT
4 SECONDS.
MON NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W
2 FT AT 3 SECONDS AND SE 2 FT AT 8 SECONDS.
TUE
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW
4 FT AT 6 SECONDS AND SE 2 FT AT 9 SECONDS.
TUE NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 7 FT, BUILDING TO 7 TO 8 FT AFTER MIDNIGHT. WAVE DETAIL: W
6 FT AT 6 SECONDS AND SE 1 FOOT AT 9 SECONDS, BECOMING W 7 FT AT
7 SECONDS AND SE 1 FOOT AT 9 SECONDS.
WED
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
8 FT.
WED NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. A CHANCE OF SHOWERS.
THU AND THU NIGHT
W WINDS 5 TO 10 KT. SEAS 3 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.
ANZ283-130300-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
1004 AM EDT SUN JUL 12 2026
THIS AFTERNOON
NE WINDS AROUND 5 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: S 2 FT AT 7 SECONDS AND SE 2 FT AT 9 SECONDS.
TONIGHT
E WINDS AROUND 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
2 FT AT 7 SECONDS AND NE 1 FOOT AT 3 SECONDS.
MON
SE WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND SE 2 FT AT
8 SECONDS.
MON NIGHT
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND S
2 FT AT 7 SECONDS.
TUE
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW
4 FT AT 9 SECONDS AND SW 3 FT AT 4 SECONDS.
TUE NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 7 FT, BUILDING TO 7 TO 8 FT AFTER MIDNIGHT. WAVE DETAIL: W
6 FT AT 6 SECONDS AND SE 1 FOOT AT 9 SECONDS, BECOMING W 7 FT AT
7 SECONDS AND SE 1 FOOT AT 9 SECONDS.
WED
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
8 FT.
WED NIGHT AND THU
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
DIMINISHING TO 5 TO 10 KT. SEAS 3 TO 5 FT.
THU NIGHT
W 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.
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