711
FZUS51 KBOX 271405
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1004 AM EDT MON JUL 27 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-280300-
1004 AM EDT MON JUL 27 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
CALM SEAS CONTINUE INTO MON WITH HIGH PRES OVER THE
WATERS. INCREASING RISK FOR ROUGH SEAS TOWARDS THE MIDDLE OF NEXT
WEEK AS LOW PRESSURE APPROACHES FROM THE W. THIS WILL ALSO BRING
PERIODIC CHANCES FOR SHOWERS AND PERHAPS THUNDERSTORMS TUE THROUGH
MID-WEEK. ROUGH SEAS SHOULD START TO DIMINISH HEADING INTO THE BACK
HALF OF THE WEEK.
ANZ250-280300-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
1004 AM EDT MON JUL 27 2026
THIS AFTERNOON
NE WINDS AROUND 5 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: E 3 FT AT 7 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 7 SECONDS AND S 1 FOOT AT 3 SECONDS.
TUE
S WINDS 5 TO 10 KT, BECOMING SE 10 TO 15 KT WITH GUSTS UP
TO 25 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT
8 SECONDS AND S 2 FT AT 3 SECONDS.
TUE NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: S 2 FT AT 3 SECONDS AND E 2 FT AT
6 SECONDS.
WED
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: E 4 FT AT 5 SECONDS AND SE 2 FT AT 9 SECONDS.
PATCHY FOG. SCATTERED SHOWERS IN THE MORNING. SHOWERS IN THE
AFTERNOON WITH VSBY 1 TO 3 NM.
WED NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 4 FT. WAVE DETAIL: E 4 FT AT 6 SECONDS AND SE 2 FT AT
10 SECONDS. SHOWERS. A CHANCE OF TSTMS IN THE EVENING.
THU
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
THU NIGHT
N WINDS AROUND 10 KT. SEAS 3 TO 5 FT. A CHANCE OF
SHOWERS AND TSTMS.
FRI AND FRI NIGHT
N WINDS 5 TO 10 KT, BECOMING NW. SEAS 2 TO
4 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.
ANZ251-280300-
MASSACHUSETTS BAY AND IPSWICH BAY-
1004 AM EDT MON JUL 27 2026
THIS AFTERNOON
NE WINDS AROUND 5 KT, BECOMING E. SEAS AROUND
2 FT. WAVE DETAIL: E 2 FT AT 7 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: E
2 FT AT 7 SECONDS AND S 1 FOOT AT 2 SECONDS.
TUE
S WINDS 5 TO 10 KT, BECOMING SE 10 TO 15 KT WITH GUSTS UP
TO 25 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT
AT 3 SECONDS AND E 2 FT AT 7 SECONDS.
TUE NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: SE 2 FT AT 4 SECONDS AND SE 2 FT AT
5 SECONDS. SCATTERED SHOWERS AFTER MIDNIGHT.
WED
E WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO
4 FT. WAVE DETAIL: E 4 FT AT 5 SECONDS AND SE 2 FT AT 5 SECONDS.
PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM IN THE AFTERNOON.
WED NIGHT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
DIMINISHING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE
DETAIL: E 4 FT AT 6 SECONDS AND SE 2 FT AT 11 SECONDS. SHOWERS
WITH A CHANCE OF TSTMS.
THU
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
THU NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS AND TSTMS.
FRI AND FRI NIGHT
N WINDS 5 TO 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.
ANZ231-280300-
CAPE COD BAY-
1004 AM EDT MON JUL 27 2026
THIS AFTERNOON
NE WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE
DETAIL: NE 2 FT AT 8 SECONDS AND N 1 FOOT AT 3 SECONDS.
TONIGHT
SE WINDS AROUND 5 KT, BECOMING SW AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 5 SECONDS AND E 1 FOOT AT
11 SECONDS.
TUE
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: S
2 FT AT 8 SECONDS AND S 1 FOOT AT 2 SECONDS.
TUE NIGHT
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 1 FOOT AT 2 SECONDS AND
E 1 FOOT AT 5 SECONDS. SCATTERED SHOWERS AFTER MIDNIGHT.
WED
E 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 E 2 FT AT 3 SECONDS.
PATCHY FOG. SHOWERS.
WED NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE
DETAIL: E 2 FT AT 4 SECONDS AND SE 2 FT AT 5 SECONDS. SHOWERS
WITH A CHANCE OF TSTMS.
THU
NE WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
THU NIGHT
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS AND TSTMS.
FRI AND FRI NIGHT
N WINDS 5 TO 10 KT, BECOMING NW. SEAS AROUND
2 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.
ANZ254-280300-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
1004 AM EDT MON JUL 27 2026
THIS AFTERNOON
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SE 3 FT AT 7 SECONDS AND NW 1 FOOT AT 2 SECONDS.
TONIGHT
SE WINDS AROUND 5 KT, BECOMING SW AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: E 3 FT AT 7 SECONDS AND SE 3 FT AT
8 SECONDS.
TUE
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT
AT 8 SECONDS AND E 2 FT AT 7 SECONDS. PATCHY FOG. VSBY 1 NM OR
LESS, INCREASING TO 1 TO 3 NM IN THE AFTERNOON.
TUE NIGHT
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND S
2 FT AT 4 SECONDS. SHOWERS LIKELY WITH A CHANCE OF TSTMS. PATCHY
FOG IN THE EVENING WITH VSBY 1 NM OR LESS.
WED
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: E 4 FT AT 5 SECONDS AND S 3 FT AT 6 SECONDS.
PATCHY FOG. SCATTERED SHOWERS IN THE MORNING. SHOWERS IN THE
AFTERNOON.
WED NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT. WAVE DETAIL: SE 4 FT AT 6 SECONDS AND SE 2 FT AT
11 SECONDS. SHOWERS IN THE EVENING. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
THU
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. A CHANCE OF SHOWERS.
THU NIGHT AND FRI
NW WINDS 10 TO 15 KT, BECOMING N 5 TO 10 KT.
SEAS 4 TO 6 FT.
FRI NIGHT
NW WINDS 5 TO 10 KT. SEAS 3 TO 4 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.
ANZ255-280300-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
1004 AM EDT MON JUL 27 2026
THIS AFTERNOON
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: E 2 FT AT 7 SECONDS AND NW 1 FOOT AT 3 SECONDS.
TONIGHT
SE WINDS AROUND 5 KT, BECOMING SW AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS AND SW 1 FOOT AT
3 SECONDS.
TUE
S WINDS 5 TO 10 KT, BECOMING SE 10 TO 15 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 7 SECONDS AND S
2 FT AT 3 SECONDS. WITH PATCHY FOG. VSBY 1 TO 3 NM.
TUE NIGHT
SE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 4 FT. WAVE DETAIL:
SE 3 FT AT 4 SECONDS AND SE 2 FT AT 8 SECONDS. SHOWERS LIKELY
WITH A CHANCE OF TSTMS IN THE EVENING, THEN SCATTERED SHOWERS
AFTER MIDNIGHT. PATCHY FOG IN THE EVENING WITH VSBY 1 NM OR LESS.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SE 5 FT AT 5 SECONDS AND S 3 FT AT 8 SECONDS.
PATCHY FOG. SHOWERS.
WED NIGHT
SE WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 4 TO 5 FT. WAVE DETAIL: SE 4 FT AT 6 SECONDS
AND NW 3 FT AT 7 SECONDS. A CHANCE OF SHOWERS AND TSTMS.
THU
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 4 TO
6 FT. A CHANCE OF SHOWERS AND TSTMS.
THU NIGHT AND FRI
NW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI NIGHT
W WINDS 5 TO 10 KT. SEAS 3 TO 4 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.
ANZ256-280300-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
1004 AM EDT MON JUL 27 2026
THIS AFTERNOON
NE WINDS AROUND 5 KT, BECOMING SE. SEAS 2 TO
3 FT. WAVE DETAIL: E 3 FT AT 7 SECONDS AND N 1 FOOT AT 3 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
2 FT AT 7 SECONDS AND SE 2 FT AT 8 SECONDS. PATCHY FOG AFTER
MIDNIGHT WITH VSBY 1 TO 3 NM.
TUE
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS AROUND 3 FT. WAVE DETAIL: SE 3 FT AT 8 SECONDS AND S 2 FT AT
4 SECONDS.
TUE NIGHT
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 4 FT. WAVE DETAIL: SE 3 FT AT 5 SECONDS AND SE 3 FT AT
8 SECONDS. PATCHY FOG. SCATTERED SHOWERS IN THE EVENING, THEN
NUMEROUS SHOWERS AFTER MIDNIGHT. VSBY 1 TO 3 NM.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. WAVE DETAIL: S 6 FT AT 7 SECONDS AND SE 1 FOOT AT
10 SECONDS. PATCHY FOG. SHOWERS LIKELY. VSBY 1 TO 3 NM.
WED NIGHT
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 5 TO 6 FT. WAVE DETAIL: SE 5 FT AT 8 SECONDS AND SE
1 FOOT AT 10 SECONDS. A CHANCE OF TSTMS. A CHANCE OF SHOWERS IN
THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.
THU
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 5 TO
6 FT. A CHANCE OF SHOWERS.
THU NIGHT AND FRI
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT.
SEAS 4 TO 6 FT.
FRI NIGHT
W WINDS 5 TO 10 KT. SEAS 3 TO 4 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.
ANZ232-280300-
NANTUCKET SOUND-
1004 AM EDT MON JUL 27 2026
THIS AFTERNOON
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: NW 1 FOOT AT 6 SECONDS AND NE 1 FOOT AT 6 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: S 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT
7 SECONDS.
TUE
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: S
2 FT AT 3 SECONDS AND E 2 FT AT 10 SECONDS.
TUE NIGHT
SE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL:
SE 2 FT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS. SCATTERED
SHOWERS AFTER MIDNIGHT.
WED
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: E 4 FT AT 5 SECONDS AND S 1 FOOT AT 5 SECONDS.
PATCHY FOG. SHOWERS.
WED NIGHT
SE WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: E 4 FT AT 5 SECONDS
AND SW 1 FOOT AT 7 SECONDS. A CHANCE OF TSTMS. SHOWERS IN THE
EVENING, THEN A CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. A CHANCE OF SHOWERS AND TSTMS.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 4 FT. A CHANCE OF SHOWERS.
FRI AND FRI NIGHT
N WINDS 10 TO 15 KT, BECOMING NW 5 TO 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.
ANZ233-280300-
VINEYARD SOUND-
1004 AM EDT MON JUL 27 2026
THIS AFTERNOON
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: NE 1 FOOT AT 3 SECONDS AND NW 1 FOOT AT 6 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW
1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 7 SECONDS.
TUE
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: S
2 FT AT 3 SECONDS AND E 2 FT AT 7 SECONDS.
TUE NIGHT
SE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 5 SECONDS AND NE 1 FOOT AT 10 SECONDS. SCATTERED SHOWERS
AFTER MIDNIGHT.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND E 3 FT AT 4 SECONDS.
PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM.
WED NIGHT
E WINDS 15 TO 20 KT, BECOMING SE AROUND 10 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: E 3 FT AT 4 SECONDS AND SW
2 FT AT 7 SECONDS. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
THU
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
THU NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS AND TSTMS.
FRI AND FRI NIGHT
NW WINDS 5 TO 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.
ANZ234-280300-
BUZZARDS BAY-
1004 AM EDT MON JUL 27 2026
THIS AFTERNOON
NE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: NE 1 FOOT AT 2 SECONDS AND NW 1 FOOT AT 6 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS, THEN AROUND
2 FT AFTER MIDNIGHT. WAVE DETAIL: SW 1 FOOT AT 3 SECONDS AND SE
1 FOOT AT 6 SECONDS, BECOMING SW 1 FOOT AT 3 SECONDS AND SE
1 FOOT AT 7 SECONDS.
TUE
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 3 SECONDS AND SE 2 FT AT 9 SECONDS.
TUE NIGHT
SE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 7 SECONDS AND S 2 FT AT 3 SECONDS. SCATTERED SHOWERS
AFTER MIDNIGHT.
WED
E WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS AROUND
3 FT. WAVE DETAIL: E 3 FT AT 3 SECONDS AND S 3 FT AT 6 SECONDS.
PATCHY FOG. WIDESPREAD SHOWERS. VSBY 1 TO 3 NM.
WED NIGHT
E WINDS 15 TO 20 KT, DIMINISHING TO AROUND 10 KT
AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 3 SECONDS
AND S 1 FOOT AT 7 SECONDS. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
THU
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
THU NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS AND TSTMS.
FRI AND FRI NIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 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.
ANZ235-280300-
RHODE ISLAND SOUND-
1004 AM EDT MON JUL 27 2026
THIS AFTERNOON
NE WINDS AROUND 5 KT, BECOMING SE. SEAS AROUND
2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS AND N 1 FOOT AT
3 SECONDS.
TONIGHT
S WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SE 2 FT AT 7 SECONDS AND SW 1 FOOT AT 2 SECONDS. PATCHY FOG AFTER
MIDNIGHT WITH VSBY 1 TO 3 NM.
TUE
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND S 2 FT AT
3 SECONDS.
TUE NIGHT
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 4 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS. PATCHY FOG.
SCATTERED SHOWERS. A CHANCE OF TSTMS IN THE EVENING WITH VSBY
1 TO 3 NM.
WED
SE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS AND SE 1 FOOT AT
10 SECONDS. PATCHY FOG. WIDESPREAD SHOWERS. VSBY 1 TO 3 NM.
WED NIGHT
E WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS
AND SE 1 FOOT AT 10 SECONDS. SHOWERS LIKELY WITH A CHANCE OF
TSTMS.
THU
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
THU NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 5 FT. A CHANCE OF SHOWERS AND TSTMS.
FRI AND FRI NIGHT
NW WINDS 10 TO 15 KT, BECOMING W 5 TO 10 KT.
SEAS 2 TO 4 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.
ANZ237-280300-
BLOCK ISLAND SOUND-
1004 AM EDT MON JUL 27 2026
THIS AFTERNOON
NE WINDS AROUND 5 KT, BECOMING S. SEAS AROUND
2 FT. WAVE DETAIL: E 2 FT AT 6 SECONDS AND N 1 FOOT AT 2 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
2 FT AT 7 SECONDS AND SW 1 FOOT AT 2 SECONDS. PATCHY FOG AFTER
MIDNIGHT WITH VSBY 1 TO 3 NM.
TUE
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 4 SECONDS AND SE 2 FT AT 7 SECONDS. SCATTERED SHOWERS IN THE
AFTERNOON.
TUE NIGHT
SE 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:
SE 3 FT AT 6 SECONDS. SCATTERED SHOWERS IN THE EVENING, THEN
NUMEROUS SHOWERS AFTER MIDNIGHT. PATCHY FOG AFTER MIDNIGHT WITH
VSBY 1 TO 3 NM.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. WAVE DETAIL: S 5 FT AT 6 SECONDS AND SE 1 FOOT AT
10 SECONDS. PATCHY FOG. WIDESPREAD SHOWERS. VSBY 1 TO 3 NM.
WED NIGHT
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS AND SE
1 FOOT AT 10 SECONDS. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
THU
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
THU NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 4 FT. A CHANCE OF SHOWERS AND TSTMS.
FRI AND FRI NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 4 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.
ANZ230-280300-
BOSTON HARBOR-
1004 AM EDT MON JUL 27 2026
THIS AFTERNOON
E WINDS AROUND 5 KT, INCREASING TO 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.
TUE
S WINDS 5 TO 10 KT, BECOMING SE 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.
TUE NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES
AROUND 2 FT. SCATTERED SHOWERS AFTER MIDNIGHT.
WED
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES 2 TO
3 FT. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM IN THE AFTERNOON.
WED NIGHT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
DIMINISHING TO 10 TO 15 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT.
SHOWERS WITH A CHANCE OF TSTMS.
THU AND THU NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES 2 TO 3 FT. SHOWERS WITH A CHANCE OF TSTMS.
FRI AND FRI NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
WINDS AND WAVES 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.
ANZ236-280300-
NARRAGANSETT BAY-
1004 AM EDT MON JUL 27 2026
THIS AFTERNOON
N WINDS AROUND 5 KT, BECOMING S. WAVES AROUND
2 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES AROUND 2 FT. PATCHY FOG
AFTER MIDNIGHT WITH VSBY 1 TO 3 NM.
TUE
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. WAVES 2 TO 3 FT.
TUE NIGHT
SE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. WAVES 2 TO 3 FT. SCATTERED
SHOWERS IN THE EVENING, THEN NUMEROUS SHOWERS AFTER MIDNIGHT.
PATCHY FOG AFTER MIDNIGHT.
WED
E WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. WAVES 2 TO
4 FT. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM.
WED NIGHT
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. WAVES 2 TO 4 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
THU
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES 2 TO
3 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
THU NIGHT
N WINDS 10 TO 15 KT. WAVES 2 TO 3 FT. A CHANCE OF
SHOWERS AND TSTMS.
FRI AND FRI NIGHT
NW WINDS 5 TO 10 KT. WAVES 2 TO 3 FT.
WINDS AND WAVES 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.
ANZ280-280300-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
1004 AM EDT MON JUL 27 2026
THIS AFTERNOON
NE WINDS AROUND 5 KT. SEAS AROUND 3 FT. WAVE
DETAIL: SE 3 FT AT 8 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
AROUND 3 FT. WAVE DETAIL: SE 3 FT AT 8 SECONDS AND S 1 FOOT AT
2 SECONDS. PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 TO 3 NM.
TUE
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS AROUND 3 FT. WAVE DETAIL: E
3 FT AT 8 SECONDS AND SE 2 FT AT 3 SECONDS. WITH PATCHY FOG.
VSBY 1 NM OR LESS.
TUE NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND S 2 FT AT
3 SECONDS.
WED AND WED NIGHT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: E 4 FT AT 5 SECONDS AND S 3 FT AT
8 SECONDS. SCATTERED SHOWERS IN THE MORNING, THEN SHOWERS.
THU
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 4 TO
6 FT. WAVE DETAIL: E 5 FT AT 6 SECONDS AND SE 5 FT AT 10 SECONDS.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
THU NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
5 TO 6 FT. A CHANCE OF SHOWERS AND TSTMS.
FRI
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 4 TO
6 FT. A CHANCE OF SHOWERS.
FRI 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.
ANZ281-280300-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
1004 AM EDT MON JUL 27 2026
THIS AFTERNOON
N WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE
DETAIL: SE 3 FT AT 7 SECONDS.
TONIGHT
E WINDS AROUND 5 KT, BECOMING SW AFTER MIDNIGHT. SEAS
AROUND 3 FT. WAVE DETAIL: E 3 FT AT 7 SECONDS AND SE 3 FT AT
8 SECONDS. PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 TO 3 NM.
TUE
SE WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE DETAIL: E 3 FT
AT 7 SECONDS AND E 2 FT AT 10 SECONDS. PATCHY FOG. VSBY 1 NM OR
LESS, INCREASING TO 1 TO 3 NM IN THE AFTERNOON.
TUE NIGHT
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS AROUND 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND
S 2 FT AT 4 SECONDS. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
PATCHY FOG IN THE EVENING WITH VSBY 1 NM OR LESS.
WED
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: E 4 FT AT 5 SECONDS AND SE 3 FT AT 9 SECONDS.
PATCHY FOG. SCATTERED SHOWERS IN THE MORNING. SHOWERS IN THE
AFTERNOON.
WED NIGHT
E WINDS 15 TO 20 KT, BECOMING SE 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 4 TO 5 FT. WAVE DETAIL: E 4 FT
AT 5 SECONDS AND SE 4 FT AT 9 SECONDS. SHOWERS IN THE EVENING. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 5 TO
6 FT. A CHANCE OF SHOWERS.
THU NIGHT AND FRI
NW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI NIGHT
NW WINDS 5 TO 10 KT. SEAS 4 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.
ANZ282-280300-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
1004 AM EDT MON JUL 27 2026
THIS AFTERNOON
N WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE
DETAIL: SE 3 FT AT 7 SECONDS.
TONIGHT
NE WINDS AROUND 5 KT, BECOMING SW AROUND 5 KT AFTER
MIDNIGHT. SEAS AROUND 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND
SW 1 FOOT AT 3 SECONDS.
TUE
SE WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE DETAIL: E 3 FT
AT 7 SECONDS AND E 2 FT AT 10 SECONDS. WITH PATCHY FOG. VSBY
1 TO 3 NM.
TUE NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 4 FT. WAVE DETAIL: SE 3 FT AT 6 SECONDS AND E 1 FOOT AT
10 SECONDS. PATCHY FOG IN THE EVENING. SCATTERED SHOWERS AFTER
MIDNIGHT. VSBY 1 NM OR LESS IN THE EVENING.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: E 4 FT AT 5 SECONDS AND SE 4 FT AT 9 SECONDS.
PATCHY FOG. SHOWERS.
WED NIGHT
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 4 TO 6 FT. WAVE DETAIL: S 5 FT AT 8 SECONDS AND E
4 FT AT 5 SECONDS. A CHANCE OF SHOWERS.
THU
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 5 TO
6 FT. A CHANCE OF SHOWERS.
THU NIGHT THROUGH FRI 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.
ANZ283-280300-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
1004 AM EDT MON JUL 27 2026
THIS AFTERNOON
NE WINDS AROUND 5 KT. SEAS AROUND 3 FT. WAVE
DETAIL: E 2 FT AT 7 SECONDS AND N 1 FOOT AT 3 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE DETAIL: SE
3 FT AT 7 SECONDS AND NW 1 FOOT AT 3 SECONDS. PATCHY FOG AFTER
MIDNIGHT WITH VSBY 1 TO 3 NM.
TUE
S WINDS 5 TO 10 KT, BECOMING SE 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS AROUND 3 FT. WAVE DETAIL: SE 3 FT
AT 7 SECONDS AND S 2 FT AT 4 SECONDS.
TUE NIGHT
SE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 4 FT. WAVE DETAIL:
SE 3 FT AT 6 SECONDS AND SE 2 FT AT 9 SECONDS. SCATTERED SHOWERS.
PATCHY FOG AFTER MIDNIGHT.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: E 4 FT AT 6 SECONDS AND SE 4 FT AT 9 SECONDS.
PATCHY FOG. WIDESPREAD SHOWERS. VSBY 1 TO 3 NM.
WED NIGHT
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS AROUND 5 FT. WAVE DETAIL: SE 4 FT AT 6 SECONDS AND
NE 3 FT AT 9 SECONDS. A CHANCE OF SHOWERS.
THU
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 5 TO
6 FT. A CHANCE OF SHOWERS.
THU NIGHT THROUGH FRI 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.
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