676
FZUS51 KBOX 290503
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
103 AM EDT WED JUL 29 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-291800-
103 AM EDT WED JUL 29 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
ROUGH SEAS DEVELOP TONIGHT AND CONTINUE THROUGH FRIDAY AS LOW
PRESSURE APPROACHES FROM THE WEST AND BRINGS PERIODIC CHANCES FOR
SHOWERS AND PERHAPS THUNDERSTORMS. WINDS WILL INITIALLY BE
SOUTHERLY/SOUTHEASTERLY THROUGH THE OVERNIGHT, BEFORE TURNING MORE
NORTHEAST WEDNESDAY THROUGH FRIDAY. ROUGH SEAS SHOULD START TO
DIMINISH HEADING INTO THE BACK HALF OF THE WEEK.
ANZ250-291800-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
103 AM EDT WED JUL 29 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING
REST OF TONIGHT
SE WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SE 2 FT AT 3 SECONDS AND SE 2 FT AT 8 SECONDS.
WED
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SE 3 FT AT 4 SECONDS AND SE 3 FT AT 8 SECONDS.
A CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 4 FT. WAVE DETAIL: SE 4 FT AT 5 SECONDS. A CHANCE OF SHOWERS
IN THE EVENING. SHOWERS AFTER MIDNIGHT.
THU
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: E 4 FT AT 7 SECONDS AND E 2 FT AT 4 SECONDS.
SHOWERS LIKELY.
THU NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 4 FT. WAVE DETAIL: NE 4 FT AT 7 SECONDS AND NE 1 FOOT AT
3 SECONDS. A CHANCE OF SHOWERS.
FRI AND FRI NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: N 4 FT AT 6 SECONDS.
SAT THROUGH SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 2 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ251-291800-
MASSACHUSETTS BAY AND IPSWICH BAY-
103 AM EDT WED JUL 29 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF TONIGHT
SE WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SE 2 FT AT 3 SECONDS AND E 2 FT AT 7 SECONDS.
WED
SE WINDS 10 TO 15 KT, BECOMING E 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: E 4 FT
AT 7 SECONDS AND SE 3 FT AT 4 SECONDS. A CHANCE OF SHOWERS IN THE
AFTERNOON.
WED NIGHT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 4 FT. WAVE DETAIL: SE 4 FT AT 5 SECONDS. SHOWERS.
THU
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS AROUND
3 FT. WAVE DETAIL: E 3 FT AT 5 SECONDS. SHOWERS.
THU NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 6 SECONDS.
SHOWERS LIKELY IN THE EVENING. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
FRI AND FRI NIGHT
NW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: NW 3 FT AT 5 SECONDS AND NE 3 FT AT 7 SECONDS.
SAT THROUGH SUN
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ231-291800-
CAPE COD BAY-
103 AM EDT WED JUL 29 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF TONIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SE 1 FOOT AT 2 SECONDS AND E 1 FOOT AT 7 SECONDS.
WED
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SE 2 FT AT 3 SECONDS AND E 2 FT AT 7 SECONDS.
A CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
E WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 4 SECONDS. SHOWERS LIKELY.
THU
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: NE 2 FT AT 4 SECONDS. A CHANCE OF SHOWERS IN
THE MORNING. SHOWERS LIKELY IN THE AFTERNOON.
THU NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 2 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS. A CHANCE OF
SHOWERS.
FRI AND FRI NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 2 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS.
SAT THROUGH SUN
S WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 2 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ254-291800-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
103 AM EDT WED JUL 29 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING
REST OF TONIGHT
SE WINDS 10 TO 15 KT. SEAS AROUND 3 FT. WAVE
DETAIL: SE 3 FT AT 7 SECONDS AND S 2 FT AT 3 SECONDS.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SE 4 FT AT 7 SECONDS AND SE 3 FT AT 4 SECONDS.
A CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
E WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL:
SE 5 FT AT 7 SECONDS. SHOWERS LIKELY.
THU
E WINDS AROUND 10 KT, BECOMING N IN THE AFTERNOON. GUSTS
UP TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT AT 7 SECONDS
AND E 1 FOOT AT 2 SECONDS. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E
4 FT AT 7 SECONDS AND N 2 FT AT 3 SECONDS. A CHANCE OF SHOWERS.
FRI AND FRI NIGHT
NW WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: NE 4 FT AT 8 SECONDS AND NW 1 FOOT AT 3 SECONDS.
SAT THROUGH SUN
S WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT.
SUN NIGHT
S WINDS AROUND 10 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ255-291800-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
103 AM EDT WED JUL 29 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING
REST OF TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT AT 6 SECONDS.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: SE 5 FT AT 5 SECONDS. A CHANCE OF SHOWERS IN
THE MORNING. SHOWERS LIKELY 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 3 TO 5 FT. WAVE DETAIL: E 5 FT
AT 7 SECONDS AND NW 3 FT AT 8 SECONDS. SHOWERS LIKELY IN THE
EVENING. A CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
SW WINDS AROUND 10 KT, BECOMING NW WITH GUSTS UP TO 20 KT
IN THE AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: SE 5 FT AT
8 SECONDS AND NW 4 FT AT 4 SECONDS.
THU NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT AT 7 SECONDS AND NW
2 FT AT 4 SECONDS. A CHANCE OF SHOWERS.
FRI AND FRI NIGHT
NW WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: SE 4 FT AT 8 SECONDS AND NW 2 FT AT 4 SECONDS.
SAT THROUGH SUN
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SUN NIGHT
S WINDS AROUND 10 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ256-291800-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
103 AM EDT WED JUL 29 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING
REST OF TONIGHT
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 4 TO 5 FT. WAVE DETAIL: SE 4 FT AT 6 SECONDS. A SLIGHT
CHANCE OF SHOWERS WITH ISOLATED TSTMS. SOME TSTMS MAY PRODUCE
HEAVY RAINFALL.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. WAVE DETAIL: SE 5 FT AT 7 SECONDS. A CHANCE OF SHOWERS IN
THE MORNING. SHOWERS LIKELY 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 4 TO 5 FT. WAVE
DETAIL: E 5 FT AT 7 SECONDS AND SW 2 FT AT 7 SECONDS. A CHANCE OF
SHOWERS.
THU
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
4 FT. WAVE DETAIL: SE 4 FT AT 8 SECONDS AND NW 3 FT AT 8 SECONDS.
A CHANCE OF SHOWERS IN THE AFTERNOON.
THU NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS AROUND 4 FT. WAVE DETAIL: NE 4 FT AT 7 SECONDS AND
N 3 FT AT 4 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
FRI AND FRI NIGHT
W WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE
DETAIL: NE 4 FT AT 8 SECONDS AND N 2 FT AT 4 SECONDS.
SAT THROUGH SUN NIGHT
S WINDS 10 TO 15 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.
ANZ232-291800-
NANTUCKET SOUND-
103 AM EDT WED JUL 29 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT AT 3 SECONDS AND SE 1 FOOT
AT 7 SECONDS.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SE 3 FT AT 4 SECONDS AND E 3 FT AT 7 SECONDS.
SHOWERS LIKELY IN THE AFTERNOON.
WED NIGHT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 4 FT. WAVE DETAIL: SE 4 FT AT 6 SECONDS. SHOWERS LIKELY IN
THE EVENING. A CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
E WINDS 10 TO 15 KT, BECOMING N WITH GUSTS UP TO 20 KT IN
THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 7 SECONDS
AND W 2 FT AT 4 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
THU NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 6 SECONDS AND W
2 FT AT 4 SECONDS. A CHANCE OF SHOWERS.
FRI AND FRI NIGHT
NW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: NE 3 FT AT 6 SECONDS AND W 1 FOOT AT 4 SECONDS.
SAT THROUGH SUN
SW WINDS 10 TO 15 KT. SEAS AROUND 2 FT.
SUN NIGHT
S WINDS 10 TO 15 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ233-291800-
VINEYARD SOUND-
103 AM EDT WED JUL 29 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT AT 6 SECONDS.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SE 4 FT AT 5 SECONDS. A CHANCE OF SHOWERS IN
THE MORNING. SHOWERS LIKELY IN THE AFTERNOON.
WED NIGHT
E WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 5 SECONDS AND S 2 FT AT 6 SECONDS. SHOWERS LIKELY IN THE
EVENING. A CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
NE WINDS 10 TO 15 KT, BECOMING N WITH GUSTS UP TO 20 KT IN
THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 8 SECONDS
AND E 2 FT AT 5 SECONDS. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 5 SECONDS AND NW
1 FOOT AT 7 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
FRI AND FRI NIGHT
NW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: E 2 FT AT 7 SECONDS AND NW 1 FOOT AT 4 SECONDS.
SAT THROUGH SUN
SW WINDS 10 TO 15 KT. SEAS AROUND 2 FT.
SUN NIGHT
S WINDS 10 TO 15 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ234-291800-
BUZZARDS BAY-
103 AM EDT WED JUL 29 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND SE 1 FOOT AT
7 SECONDS.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SE 3 FT AT 3 SECONDS AND SE 3 FT AT 7 SECONDS.
A CHANCE OF SHOWERS IN THE MORNING. SHOWERS LIKELY IN THE
AFTERNOON.
WED NIGHT
E WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 4 SECONDS. SHOWERS LIKELY.
THU
NE WINDS 10 TO 15 KT, BECOMING N IN THE AFTERNOON. GUSTS
UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 4 SECONDS. A
CHANCE OF SHOWERS IN THE MORNING. SHOWERS LIKELY IN THE
AFTERNOON.
THU NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 4 SECONDS AND W
1 FOOT AT 4 SECONDS. SHOWERS LIKELY IN THE EVENING.
FRI AND FRI NIGHT
NW WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE
DETAIL: NE 2 FT AT 7 SECONDS AND NW 1 FOOT AT 5 SECONDS.
SAT THROUGH SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 2 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 2 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ235-291800-
RHODE ISLAND SOUND-
103 AM EDT WED JUL 29 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF TONIGHT
SE WINDS 15 TO 20 KT. SEAS 3 TO 5 FT. WAVE
DETAIL: S 3 FT AT 6 SECONDS. A SLIGHT CHANCE OF SHOWERS WITH
ISOLATED TSTMS.
WED
SE WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SE
6 FT AT 6 SECONDS. A CHANCE OF SHOWERS IN THE MORNING. SHOWERS IN
THE AFTERNOON.
WED NIGHT
E WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E
4 FT AT 6 SECONDS AND SW 1 FOOT AT 6 SECONDS. SHOWERS LIKELY.
THU
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT AT 8 SECONDS AND S 2 FT AT
6 SECONDS. A CHANCE OF SHOWERS IN THE MORNING. SHOWERS LIKELY IN
THE AFTERNOON.
THU NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 3 TO 4 FT. WAVE DETAIL: NE 4 FT AT 7 SECONDS AND N
3 FT AT 4 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
FRI AND FRI NIGHT
W WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: NE 4 FT AT 8 SECONDS AND NW 2 FT AT 5 SECONDS.
SAT THROUGH SUN
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
SUN NIGHT
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS.
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.
ANZ237-291800-
BLOCK ISLAND SOUND-
103 AM EDT WED JUL 29 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: SE 3 FT AT 6 SECONDS. A CHANCE OF
SHOWERS WITH ISOLATED TSTMS. SOME TSTMS MAY PRODUCE HEAVY
RAINFALL.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SE 5 FT AT 6 SECONDS. SHOWERS.
WED NIGHT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, BECOMING
NE 10 TO 15 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: E
4 FT AT 6 SECONDS AND S 2 FT AT 6 SECONDS. SHOWERS LIKELY.
THU
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: E 4 FT AT 7 SECONDS AND NW 2 FT AT 5 SECONDS.
A CHANCE OF SHOWERS IN THE MORNING. SHOWERS LIKELY IN THE
AFTERNOON.
THU NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 2 TO 4 FT. WAVE DETAIL: N 4 FT AT 7 SECONDS.
SHOWERS LIKELY IN THE EVENING.
FRI AND FRI NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: NE 3 FT AT 8 SECONDS AND N 1 FOOT AT 4 SECONDS.
SAT THROUGH SUN
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS.
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.
ANZ230-291800-
BOSTON HARBOR-
103 AM EDT WED JUL 29 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF TONIGHT
SE WINDS AROUND 10 KT. WAVES 1 FOOT OR LESS.
WED
SE WINDS 10 TO 15 KT, BECOMING E 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. WAVES 2 TO 3 FT. A CHANCE OF
SHOWERS IN THE MORNING. SHOWERS LIKELY IN THE AFTERNOON.
WED NIGHT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES
2 TO 3 FT. SHOWERS LIKELY IN THE EVENING. SHOWERS AFTER MIDNIGHT.
THU
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES 2 TO
3 FT. SHOWERS.
THU NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. WAVES AROUND 2 FT. SHOWERS LIKELY IN THE EVENING. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI AND FRI NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
SAT THROUGH SUN
S WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES AROUND 2 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ236-291800-
NARRAGANSETT BAY-
103 AM EDT WED JUL 29 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES 2 TO 3 FT. A SLIGHT CHANCE OF SHOWERS WITH ISOLATED TSTMS.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. WAVES 2 TO
4 FT. SHOWERS.
WED NIGHT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, BECOMING
NE 10 TO 15 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT. SHOWERS LIKELY.
THU
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 2 TO 3 FT. SHOWERS LIKELY.
THU NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. WAVES 2 TO 3 FT. SHOWERS LIKELY IN THE EVENING.
FRI AND FRI NIGHT
W WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
SAT THROUGH SUN
S WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES AROUND 2 FT. A CHANCE OF
SHOWERS.
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.
ANZ280-291800-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
103 AM EDT WED JUL 29 2026
REST OF TONIGHT
SE WINDS AROUND 10 KT. SEAS 3 TO 4 FT. WAVE
DETAIL: S 2 FT AT 4 SECONDS AND SE 2 FT AT 8 SECONDS.
WED
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SE 4 FT AT 8 SECONDS AND SE 3 FT AT 4 SECONDS.
WED NIGHT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 5 FT. WAVE DETAIL: SE 5 FT AT 6 SECONDS. A CHANCE OF SHOWERS
IN THE EVENING. SHOWERS AFTER MIDNIGHT.
THU
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: E 5 FT AT 7 SECONDS AND SE 1 FOOT AT
2 SECONDS. SHOWERS LIKELY.
THU NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
4 TO 5 FT. WAVE DETAIL: NE 5 FT AT 7 SECONDS AND W 2 FT AT
3 SECONDS. A CHANCE OF SHOWERS.
FRI AND FRI NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: NE 5 FT AT 8 SECONDS AND N 3 FT AT
4 SECONDS.
SAT THROUGH SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ281-291800-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
103 AM EDT WED JUL 29 2026
REST OF TONIGHT
SE WINDS AROUND 10 KT. SEAS 3 TO 4 FT. WAVE
DETAIL: SE 3 FT AT 7 SECONDS AND S 2 FT AT 4 SECONDS.
WED
SE WINDS 10 TO 15 KT, BECOMING E 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 4 TO 5 FT. WAVE DETAIL: SE
4 FT AT 7 SECONDS AND SE 3 FT AT 4 SECONDS. A CHANCE OF SHOWERS
IN THE AFTERNOON.
WED NIGHT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 5 FT. WAVE DETAIL: SE 5 FT AT 7 SECONDS. A CHANCE OF SHOWERS
IN THE EVENING. SHOWERS LIKELY AFTER MIDNIGHT.
THU
SE WINDS 10 TO 15 KT, BECOMING NW IN THE AFTERNOON. GUSTS
UP TO 25 KT. SEAS 4 TO 5 FT. WAVE DETAIL: SE 5 FT AT 8 SECONDS
AND W 4 FT AT 6 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT
N WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT. SEAS
4 TO 5 FT. WAVE DETAIL: SE 5 FT AT 8 SECONDS AND W 3 FT AT
5 SECONDS. A CHANCE OF SHOWERS.
FRI
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS 4 TO 5 FT. WAVE DETAIL: NE 5 FT AT 9 SECONDS AND NW 3 FT AT
5 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
FRI NIGHT
NW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
SAT THROUGH SUN
S WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT.
SEAS 3 TO 4 FT.
SUN NIGHT
S WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 3 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ282-291800-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
103 AM EDT WED JUL 29 2026
REST OF TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT AT 6 SECONDS.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS. A CHANCE OF SHOWERS IN
THE MORNING. SHOWERS IN THE AFTERNOON.
WED NIGHT
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
BECOMING S AROUND 10 KT AFTER MIDNIGHT. SEAS 4 TO 5 FT. WAVE
DETAIL: SE 5 FT AT 7 SECONDS AND NW 3 FT AT 6 SECONDS. SHOWERS
LIKELY IN THE EVENING. A CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
W WINDS AROUND 10 KT. SEAS AROUND 5 FT. WAVE DETAIL: S
5 FT AT 8 SECONDS AND NW 4 FT AT 6 SECONDS.
THU NIGHT THROUGH FRI NIGHT
NW WINDS 5 TO 10 KT. SEAS 3 TO
5 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS AND NW 3 FT AT 4 SECONDS.
SAT THROUGH SUN
S WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: S 4 FT AT 8 SECONDS AND NW 1 FOOT AT 4 SECONDS.
SUN NIGHT
S WINDS AROUND 10 KT. SEAS 2 TO 4 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ283-291800-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
103 AM EDT WED JUL 29 2026
REST OF TONIGHT
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 4 TO 5 FT. WAVE DETAIL: SE 3 FT AT 6 SECONDS. A SLIGHT
CHANCE OF SHOWERS WITH ISOLATED TSTMS. SOME TSTMS MAY PRODUCE
HEAVY RAINFALL.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. WAVE DETAIL: SE 5 FT AT 6 SECONDS. A CHANCE OF SHOWERS IN
THE MORNING. SHOWERS LIKELY IN THE AFTERNOON.
WED NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING SW AFTER MIDNIGHT. SEAS 4 TO 5 FT. WAVE DETAIL: SE 5 FT
AT 7 SECONDS AND N 4 FT AT 7 SECONDS. A CHANCE OF SHOWERS IN THE
EVENING.
THU
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 4 TO 5 FT. WAVE DETAIL: SE 5 FT AT 8 SECONDS AND NW 4 FT AT
6 SECONDS.
THU NIGHT AND FRI
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 4 TO 5 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS AND NW 2 FT AT
4 SECONDS.
FRI NIGHT
NW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
3 FT AT 8 SECONDS AND N 1 FOOT AT 4 SECONDS.
SAT THROUGH SUN
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SUN NIGHT
S WINDS AROUND 10 KT. SEAS 2 TO 4 FT. A CHANCE OF
SHOWERS.
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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