298
FZUS51 KBOX 262004
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
403 PM EDT TUE MAY 26 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-270900-
403 PM EDT TUE MAY 26 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
WEAK HIGH PRES MOVES OFFSHORE TONIGHT. A COLD FRONT WILL DROP S INTO
THE WATERS FROM THE N WED AFTERNOON/EVENING WHILE A LOW PRES CROSS
NOVA SCOTIA. ANOTHER COLD FRONT AND ASSOCIATED LOW PRES SHOULD CROSS
THE WATERS LATER FRI INTO SAT.
ANZ250-270900-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
403 PM EDT TUE MAY 26 2026
TONIGHT
SW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT
AT 4 SECONDS AND SE 3 FT AT 8 SECONDS.
WED
SW 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: SW
2 FT AT 4 SECONDS AND SE 2 FT AT 7 SECONDS.
WED NIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS AND W 1 FOOT AT
3 SECONDS.
THU
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NW
2 FT AT 3 SECONDS AND NE 2 FT AT 7 SECONDS.
THU NIGHT
N WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE DETAIL:
NE 2 FT AT 6 SECONDS AND SW 1 FOOT AT 5 SECONDS.
FRI
N WINDS AROUND 5 KT, BECOMING E IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: NE 2 FT AT 6 SECONDS AND SW 1 FOOT AT
7 SECONDS.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS
LIKELY AFTER MIDNIGHT.
SAT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. SHOWERS LIKELY.
SAT NIGHT AND SUN
N WINDS 15 TO 20 KT, DIMINISHING TO 10 TO
15 KT. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. A CHANCE OF SHOWERS.
SUN 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.
ANZ251-270900-
MASSACHUSETTS BAY AND IPSWICH BAY-
403 PM EDT TUE MAY 26 2026
TONIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT THIS EVENING.
SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 8 SECONDS AND S 2 FT AT
4 SECONDS.
WED
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW
2 FT AT 3 SECONDS AND E 2 FT AT 8 SECONDS.
WED NIGHT
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: W
1 FOOT AT 2 SECONDS AND E 1 FOOT AT 8 SECONDS.
THU
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NE
2 FT AT 5 SECONDS. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: NE 1 FOOT AT 6 SECONDS AND NE 1 FOOT AT 9 SECONDS. A
CHANCE OF SHOWERS IN THE EVENING.
FRI
N WINDS AROUND 5 KT, BECOMING E IN THE AFTERNOON. SEAS
1 FOOT OR LESS, THEN AROUND 2 FT IN THE AFTERNOON. WAVE DETAIL:
NE 1 FOOT AT 6 SECONDS AND S 1 FOOT AT 8 SECONDS, BECOMING E 2 FT
AT 7 SECONDS AND SW 1 FOOT AT 6 SECONDS.
FRI NIGHT
S WINDS 10 TO 15 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS IN THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.
SAT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. SHOWERS LIKELY.
SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 4 FT. A CHANCE OF SHOWERS.
SUN AND SUN NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING SW 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.
ANZ231-270900-
CAPE COD BAY-
403 PM EDT TUE MAY 26 2026
TONIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT THIS EVENING.
SEAS AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 2 SECONDS AND E
1 FOOT AT 6 SECONDS.
WED
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 2 SECONDS AND E
1 FOOT AT 7 SECONDS.
WED NIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: W 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT
7 SECONDS.
THU
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: N
1 FOOT AT 4 SECONDS.
THU NIGHT
N WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: N 1 FOOT AT 4 SECONDS.
FRI
N WINDS AROUND 5 KT, BECOMING E IN THE AFTERNOON. SEAS
1 FOOT OR LESS. WAVE DETAIL: N 1 FOOT AT 5 SECONDS.
FRI NIGHT
S WINDS AROUND 10 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. A CHANCE OF SHOWERS IN THE EVENING,
THEN SHOWERS LIKELY AFTER MIDNIGHT.
SAT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. SHOWERS LIKELY.
SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS.
SUN AND SUN NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING SW 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.
ANZ254-270900-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
403 PM EDT TUE MAY 26 2026
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND SE 3 FT AT 8 SECONDS.
PATCHY FOG THIS EVENING WITH VSBY 1 NM OR LESS.
WED
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 2 FT AT 7 SECONDS.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: W 4 FT AT
6 SECONDS AND SE 2 FT AT 7 SECONDS.
THU
N WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NW 3 FT
AT 6 SECONDS AND NE 2 FT AT 7 SECONDS.
THU NIGHT
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
3 FT AT 6 SECONDS AND S 2 FT AT 7 SECONDS.
FRI
N WINDS 5 TO 10 KT, BECOMING NE IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 8 SECONDS AND S 2 FT AT
8 SECONDS.
FRI NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS IN THE EVENING,
THEN SHOWERS LIKELY AFTER MIDNIGHT.
SAT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. SHOWERS LIKELY.
SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. A CHANCE OF SHOWERS.
SUN
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. A CHANCE OF SHOWERS.
SUN NIGHT
W WINDS AROUND 10 KT. SEAS 3 TO 5 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.
ANZ255-270900-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
403 PM EDT TUE MAY 26 2026
TONIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
3 FT AT 7 SECONDS AND SE 3 FT AT 8 SECONDS. PATCHY FOG AFTER
MIDNIGHT WITH VSBY 1 TO 3 NM.
WED
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
NW AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT
7 SECONDS AND E 1 FOOT AT 8 SECONDS. PATCHY FOG IN THE EVENING
WITH VSBY 1 NM OR LESS.
THU
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SW 3 FT AT 6 SECONDS AND NE 2 FT AT 7 SECONDS.
THU NIGHT
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
2 FT AT 5 SECONDS AND S 2 FT AT 7 SECONDS.
FRI
N WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 7 SECONDS AND SW 2 FT AT
8 SECONDS.
FRI NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
SAT AND SAT NIGHT
W WINDS 15 TO 20 KT, BECOMING N. GUSTS UP TO
25 KT. SEAS 3 TO 5 FT. A CHANCE OF SHOWERS.
SUN AND SUN NIGHT
NW WINDS 15 TO 20 KT, BECOMING W 10 TO
15 KT. SEAS 3 TO 5 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.
ANZ256-270900-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
403 PM EDT TUE MAY 26 2026
TONIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
3 FT AT 7 SECONDS AND SE 3 FT AT 8 SECONDS. PATCHY FOG. VSBY 1 TO
3 NM, DECREASING TO 1 NM OR LESS AFTER MIDNIGHT.
WED
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS.
WED NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING NW AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT
AT 7 SECONDS AND SE 2 FT AT 8 SECONDS.
THU
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT
AT 6 SECONDS AND SE 2 FT AT 9 SECONDS.
THU NIGHT
NE WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND NE 1 FOOT AT
4 SECONDS.
FRI
NW WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 8 SECONDS AND
NE 1 FOOT AT 6 SECONDS.
FRI NIGHT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 2 TO 4 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
SAT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. A CHANCE OF SHOWERS.
SAT NIGHT THROUGH SUN NIGHT
SW WINDS 15 TO 20 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.
ANZ232-270900-
NANTUCKET SOUND-
403 PM EDT TUE MAY 26 2026
TONIGHT
SW WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 4 SECONDS AND E 1 FOOT AT 8 SECONDS.
WED
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 1 FOOT AT
8 SECONDS.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT
4 SECONDS AND SE 1 FOOT AT 7 SECONDS.
THU
N WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL: NE
2 FT AT 6 SECONDS AND W 1 FOOT AT 5 SECONDS.
THU NIGHT
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
NE 1 FOOT AT 4 SECONDS AND SW 1 FOOT AT 7 SECONDS.
FRI
N WINDS 5 TO 10 KT, BECOMING S IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: NE 1 FOOT AT 6 SECONDS AND SW 1 FOOT AT
8 SECONDS.
FRI NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. A CHANCE OF SHOWERS.
SAT AND SAT NIGHT
W WINDS 15 TO 20 KT, BECOMING N. GUSTS UP TO
25 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
SUN AND SUN NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING W. 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.
ANZ233-270900-
VINEYARD SOUND-
403 PM EDT TUE MAY 26 2026
TONIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 6 SECONDS.
WED
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SW 3 FT AT 6 SECONDS AND E 1 FOOT AT
7 SECONDS.
WED NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING N AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 6 SECONDS AND E 1 FOOT AT 7 SECONDS.
THU
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: W 2 FT
AT 6 SECONDS AND NE 1 FOOT AT 6 SECONDS.
THU NIGHT
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 7 SECONDS AND NE 1 FOOT AT 3 SECONDS.
FRI
NW WINDS AROUND 5 KT, BECOMING SW 10 TO 15 KT IN THE
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 8 SECONDS
AND NE 1 FOOT AT 3 SECONDS.
FRI NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. A CHANCE OF SHOWERS.
SAT AND SAT NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
SUN AND SUN NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING SW. 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.
ANZ234-270900-
BUZZARDS BAY-
403 PM EDT TUE MAY 26 2026
TONIGHT
SW WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 4 SECONDS AND SE 1 FOOT AT 7 SECONDS.
WED
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 SE 1 FOOT AT
7 SECONDS.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N 5 TO 10 KT AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: SW
2 FT AT 5 SECONDS AND SE 1 FOOT AT 7 SECONDS.
THU
NE WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: N
1 FOOT AT 2 SECONDS AND SW 1 FOOT AT 5 SECONDS. A CHANCE OF
SHOWERS IN THE AFTERNOON.
THU 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 2 SECONDS AND SW
1 FOOT AT 7 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
FRI
NW WINDS AROUND 5 KT, BECOMING SW 10 TO 15 KT IN THE
AFTERNOON. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT IN THE
AFTERNOON. WAVE DETAIL: NE 1 FOOT AT 3 SECONDS AND SW 1 FOOT AT
7 SECONDS, BECOMING SW 2 FT AT 5 SECONDS AND E 1 FOOT AT
8 SECONDS.
FRI NIGHT
SW WINDS 10 TO 15 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
SAT AND SAT NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
SUN AND SUN NIGHT
NW WINDS 10 TO 15 KT, BECOMING SW. 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.
ANZ235-270900-
RHODE ISLAND SOUND-
403 PM EDT TUE MAY 26 2026
TONIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 7 SECONDS AND SE 3 FT AT 8 SECONDS.
WED
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT
7 SECONDS AND SE 2 FT AT 7 SECONDS.
THU
N WINDS AROUND 10 KT, BECOMING NE IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: NW 2 FT AT 7 SECONDS AND E 2 FT AT
9 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
THU NIGHT
NE WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND NE 1 FOOT AT
3 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
FRI
NW WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT IN THE
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 8 SECONDS
AND NE 1 FOOT AT 3 SECONDS.
FRI NIGHT
SW WINDS AROUND 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
SAT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. A CHANCE OF SHOWERS.
SAT NIGHT THROUGH SUN NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 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.
ANZ237-270900-
BLOCK ISLAND SOUND-
403 PM EDT TUE MAY 26 2026
TONIGHT
SW WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
3 FT AT 8 SECONDS AND SW 2 FT AT 7 SECONDS.
WED
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS AND SE 2 FT AT
8 SECONDS.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: W 3 FT
AT 6 SECONDS AND SE 2 FT AT 8 SECONDS.
THU
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT
AT 7 SECONDS AND W 2 FT AT 7 SECONDS. A CHANCE OF SHOWERS IN THE
AFTERNOON.
THU NIGHT
NE WINDS AROUND 5 KT, BECOMING N AFTER MIDNIGHT.
SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND E 1 FOOT
AT 5 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
FRI
NW WINDS AROUND 5 KT, BECOMING SW 10 TO 15 KT IN THE
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS.
FRI NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
SAT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. A CHANCE OF SHOWERS.
SAT NIGHT THROUGH SUN NIGHT
SW 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.
ANZ230-270900-
BOSTON HARBOR-
403 PM EDT TUE MAY 26 2026
TONIGHT
SW WINDS 10 TO 15 KT. WAVES AROUND 2 FT.
WED
W WINDS AROUND 10 KT. WAVES 1 FOOT OR LESS, THEN AROUND
2 FT IN THE AFTERNOON.
WED NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
THU
NE WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS, THEN AROUND
2 FT IN THE AFTERNOON. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS AROUND 5 KT. WAVES 1 FOOT OR LESS. A CHANCE
OF SHOWERS IN THE EVENING.
FRI
N WINDS AROUND 5 KT, BECOMING E IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
FRI NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FOOT OR LESS, THEN
AROUND 2 FT AFTER MIDNIGHT. A CHANCE OF SHOWERS IN THE EVENING,
THEN SHOWERS LIKELY AFTER MIDNIGHT.
SAT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES 2 TO
3 FT. SHOWERS LIKELY.
SAT NIGHT
N WINDS 15 TO 20 KT. WAVES AROUND 2 FT. A CHANCE OF
SHOWERS.
SUN AND SUN NIGHT
N WINDS 10 TO 15 KT, BECOMING W 5 TO 10 KT.
WAVES AROUND 2 FT, THEN 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.
ANZ236-270900-
NARRAGANSETT BAY-
403 PM EDT TUE MAY 26 2026
TONIGHT
SW WINDS AROUND 10 KT. WAVES AROUND 2 FT.
WED
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. WAVES AROUND 2 FT.
WED NIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. WAVES
AROUND 2 FT.
THU
N WINDS 5 TO 10 KT. WAVES AROUND 2 FT. SHOWERS LIKELY IN
THE AFTERNOON.
THU NIGHT
NE WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT.
WAVES AROUND 2 FT. SHOWERS LIKELY IN THE EVENING.
FRI
NW WINDS AROUND 5 KT, BECOMING SW 10 TO 15 KT IN THE
AFTERNOON. WAVES AROUND 2 FT.
FRI NIGHT
SW WINDS 10 TO 15 KT. WAVES AROUND 2 FT. A CHANCE OF
SHOWERS.
SAT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES 2 TO
3 FT. A CHANCE OF SHOWERS.
SAT NIGHT THROUGH SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 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.
ANZ280-270900-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
403 PM EDT TUE MAY 26 2026
TONIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS.
WED
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS 3 TO 4 FT. WAVE DETAIL: W 4 FT AT 6 SECONDS AND SE 3 FT AT
7 SECONDS.
WED NIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 6 SECONDS AND SE 2 FT AT
8 SECONDS.
THU
N WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT IN THE
AFTERNOON. GUSTS UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT
AT 5 SECONDS AND S 2 FT AT 7 SECONDS.
THU NIGHT
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
3 FT AT 6 SECONDS AND S 1 FOOT AT 8 SECONDS.
FRI
N WINDS 5 TO 10 KT, BECOMING E IN THE AFTERNOON. SEAS 2 TO
3 FT. WAVE DETAIL: E 3 FT AT 9 SECONDS AND S 1 FOOT AT 7 SECONDS.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 4 FT. A CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS
LIKELY AFTER MIDNIGHT.
SAT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. SHOWERS LIKELY.
SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 6 FT. A CHANCE OF SHOWERS.
SUN
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. A CHANCE OF SHOWERS.
SUN NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
4 TO 6 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.
ANZ281-270900-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
403 PM EDT TUE MAY 26 2026
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND SE 3 FT AT 8 SECONDS.
PATCHY FOG. VSBY 1 NM OR LESS.
WED
SW WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
4 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND E 2 FT AT 7 SECONDS.
WED NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING NW AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: W 4 FT
AT 7 SECONDS AND E 1 FOOT AT 8 SECONDS. PATCHY FOG AFTER
MIDNIGHT.
THU
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SW 3 FT AT 6 SECONDS AND NE 3 FT AT 8 SECONDS.
THU NIGHT AND FRI
NW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE
DETAIL: NE 4 FT AT 6 SECONDS AND S 2 FT AT 7 SECONDS.
FRI NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT AT 10 SECONDS AND S
3 FT AT 8 SECONDS. A CHANCE OF SHOWERS.
SAT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
7 FT. SHOWERS LIKELY.
SAT NIGHT AND SUN
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 5 TO 8 FT. A CHANCE OF SHOWERS.
SUN NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
4 TO 6 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.
ANZ282-270900-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
403 PM EDT TUE MAY 26 2026
TONIGHT
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND SE
3 FT AT 8 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
WED
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS.
WED NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING NW AFTER MIDNIGHT. SEAS AROUND 3 FT. WAVE DETAIL: W 3 FT
AT 7 SECONDS AND SE 1 FOOT AT 8 SECONDS. PATCHY FOG. VSBY 1 TO
3 NM.
THU
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 3 TO 4 FT. WAVE DETAIL: W 3 FT AT 6 SECONDS AND E 2 FT AT
9 SECONDS.
THU NIGHT
N WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: NE
3 FT AT 7 SECONDS AND SW 3 FT AT 7 SECONDS.
FRI
N WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. SEAS
AROUND 3 FT. WAVE DETAIL: NE 3 FT AT 8 SECONDS AND S 2 FT AT
8 SECONDS.
FRI NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
SAT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
5 FT. A CHANCE OF SHOWERS.
SAT NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
5 TO 7 FT. A CHANCE OF SHOWERS.
SUN
NW WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.
SUN NIGHT
W WINDS 10 TO 15 KT. SEAS 4 TO 6 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.
ANZ283-270900-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
403 PM EDT TUE MAY 26 2026
TONIGHT
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND SE
3 FT AT 8 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
WED
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS.
WED NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING NW AFTER MIDNIGHT. SEAS AROUND 3 FT. WAVE DETAIL: SW
3 FT AT 7 SECONDS AND SE 2 FT AT 9 SECONDS. PATCHY FOG. VSBY 1 NM
OR LESS.
THU
N WINDS 10 TO 15 KT. SEAS AROUND 3 FT. WAVE DETAIL: NW
3 FT AT 6 SECONDS AND E 2 FT AT 8 SECONDS.
THU NIGHT
NE WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 3 FT. WAVE DETAIL: NE 2 FT AT 4 SECONDS AND S 2 FT AT
7 SECONDS.
FRI
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
AROUND 3 FT. WAVE DETAIL: S 2 FT AT 8 SECONDS AND NE 2 FT AT
8 SECONDS.
FRI NIGHT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
SAT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS AROUND
4 FT. A CHANCE OF SHOWERS.
SAT NIGHT THROUGH SUN NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 4 TO 6 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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