045
FZUS51 KBOX 281703
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
103 PM EDT TUE JUL 28 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-290600-
103 PM EDT TUE JUL 28 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
INCREASING RISK FOR ROUGH SEAS TOWARDS THE MIDDLE OF NEXT WEEK AS
LOW PRESSURE APPROACHES FROM THE W. BEST CHANCE FOR SMALL CRAFT
ADVISORY CONDITIONS EXIST FOR THE OUTER WATERS LATER WEDNESDAY. LOW
PRESSURE 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.
ANZ250-290600-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
103 PM EDT TUE JUL 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
THURSDAY MORNING...
THIS AFTERNOON
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: SE 3 FT AT 8 SECONDS AND S 2 FT AT
3 SECONDS.
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SE 3 FT AT 4 SECONDS AND SE 2 FT AT 8 SECONDS.
WED
E WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SE 5 FT AT 6 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 3 TO 5 FT. WAVE DETAIL:
SE 4 FT AT 6 SECONDS. SHOWERS. PATCHY FOG IN THE EVENING. VSBY
1 TO 3 NM.
THU
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: E 4 FT AT 6 SECONDS AND SE 1 FOOT AT
3 SECONDS. SHOWERS LIKELY, MAINLY IN THE MORNING.
THU NIGHT
NE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E
4 FT AT 7 SECONDS AND W 1 FOOT AT 4 SECONDS. A CHANCE OF SHOWERS.
FRI
NE WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. A CHANCE OF SHOWERS.
FRI NIGHT THROUGH SAT NIGHT
S WINDS AROUND 5 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.
ANZ251-290600-
MASSACHUSETTS BAY AND IPSWICH BAY-
103 PM EDT TUE JUL 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
WEDNESDAY EVENING...
THIS AFTERNOON
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 4 SECONDS AND E 2 FT AT
7 SECONDS. A SLIGHT CHANCE OF SHOWERS WITH ISOLATED TSTMS.
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SE 3 FT AT 4 SECONDS AND E 2 FT AT 7 SECONDS.
WED
E WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SE 4 FT AT 5 SECONDS. SHOWERS.
WED NIGHT
E 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:
SE 4 FT AT 6 SECONDS. SHOWERS. PATCHY FOG IN THE EVENING. VSBY
1 TO 3 NM.
THU AND THU NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 6 SECONDS AND SE 1 FOOT AT
3 SECONDS. SHOWERS LIKELY .
FRI THROUGH SAT NIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: NE 3 FT AT 6 SECONDS.
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.
ANZ231-290600-
CAPE COD BAY-
103 PM EDT TUE JUL 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
WEDNESDAY EVENING...
THIS AFTERNOON
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: S 1 FOOT AT 3 SECONDS AND E 1 FOOT
AT 6 SECONDS.
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: S 1 FOOT AT 3 SECONDS AND E 1 FOOT AT
7 SECONDS.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS AROUND
3 FT. WAVE DETAIL: E 3 FT AT 4 SECONDS. SHOWERS.
WED NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT, BECOMING
SE 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: E 2 FT
AT 4 SECONDS. SHOWERS. PATCHY FOG IN THE EVENING. VSBY 1 TO 3 NM.
THU
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
1 FOOT AT 2 SECONDS AND NE 1 FOOT AT 5 SECONDS. A CHANCE OF
SHOWERS.
THU NIGHT
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
N 2 FT AT 5 SECONDS AND E 1 FOOT AT 2 SECONDS. A CHANCE OF
SHOWERS.
FRI
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF SHOWERS.
FRI NIGHT THROUGH SAT NIGHT
SW WINDS AROUND 5 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.
ANZ254-290600-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
103 PM EDT TUE JUL 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING
THROUGH THURSDAY MORNING...
THIS AFTERNOON
S 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.
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 3 FT. WAVE DETAIL: SE 3 FT AT 4 SECONDS AND SE 3 FT AT
7 SECONDS.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 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, BECOMING S 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SE 4 FT
AT 6 SECONDS. SHOWERS LIKELY, MAINLY IN THE EVENING. PATCHY FOG
IN THE EVENING. VSBY 1 TO 3 NM.
THU
S WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SE 4 FT
AT 8 SECONDS AND SW 1 FOOT AT 3 SECONDS.
THU NIGHT
SE WINDS 5 TO 10 KT, BECOMING NE AFTER MIDNIGHT.
SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT AT 8 SECONDS AND SW 1 FOOT
AT 3 SECONDS. A CHANCE OF SHOWERS.
FRI
N WINDS AROUND 10 KT. SEAS 3 TO 5 FT. A CHANCE OF SHOWERS.
FRI NIGHT THROUGH SAT NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO
4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ255-290600-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
103 PM EDT TUE JUL 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING
THROUGH THURSDAY MORNING...
THIS AFTERNOON
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 3 FT. WAVE DETAIL: S 3 FT AT 6 SECONDS.
TONIGHT
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 4 FT
AT 6 SECONDS.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: SE 5 FT AT 7 SECONDS. SHOWERS.
WED NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING S AFTER MIDNIGHT. SEAS 4 TO 5 FT. WAVE DETAIL: S 5 FT AT
7 SECONDS. SHOWERS LIKELY, MAINLY IN THE EVENING. PATCHY FOG IN
THE EVENING.
THU
S WINDS AROUND 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S 4 FT
AT 8 SECONDS AND SW 3 FT AT 7 SECONDS.
THU NIGHT
SW WINDS AROUND 10 KT, BECOMING NW AFTER MIDNIGHT.
SEAS 3 TO 5 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS AND SW 2 FT AT
4 SECONDS. A CHANCE OF SHOWERS.
FRI
N WINDS AROUND 10 KT. SEAS 3 TO 5 FT. A CHANCE OF SHOWERS.
FRI NIGHT THROUGH SAT NIGHT
SW 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.
ANZ256-290600-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
103 PM EDT TUE JUL 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING
THROUGH THURSDAY MORNING...
THIS AFTERNOON
S WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT.
SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT AT 6 SECONDS.
TONIGHT
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SE 5 FT AT 6 SECONDS. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
WED
SE WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 5 TO 6 FT. WAVE DETAIL: S 6 FT
AT 7 SECONDS. SHOWERS.
WED NIGHT
S WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. WAVE DETAIL: NW
5 FT AT 9 SECONDS AND SE 4 FT AT 7 SECONDS. A CHANCE OF SHOWERS.
PATCHY FOG IN THE EVENING.
THU
SW WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. WAVE DETAIL: S 4 FT
AT 8 SECONDS AND W 2 FT AT 6 SECONDS. A CHANCE OF SHOWERS IN THE
MORNING.
THU NIGHT
N WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. WAVE DETAIL: S
4 FT AT 8 SECONDS AND NW 2 FT AT 4 SECONDS. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
FRI THROUGH SAT NIGHT
SW WINDS 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.
ANZ232-290600-
NANTUCKET SOUND-
103 PM EDT TUE JUL 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING
THROUGH WEDNESDAY EVENING...
THIS AFTERNOON
S 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 SE 1 FOOT AT
7 SECONDS.
TONIGHT
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 3 FT
AT 4 SECONDS AND SE 1 FOOT AT 7 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 6 SECONDS. SHOWERS.
WED NIGHT
SE WINDS 15 TO 20 KT, BECOMING S AROUND 10 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: E 3 FT AT 5 SECONDS AND SW
1 FOOT AT 6 SECONDS. SHOWERS, MAINLY IN THE EVENING. PATCHY FOG
IN THE EVENING.
THU
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT
AT 3 SECONDS AND SE 2 FT AT 7 SECONDS. A CHANCE OF SHOWERS.
THU NIGHT
SW WINDS 10 TO 15 KT, BECOMING N AFTER MIDNIGHT.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND SE 2 FT AT
8 SECONDS. A CHANCE OF SHOWERS.
FRI
N WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
FRI NIGHT THROUGH SAT NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO
3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ233-290600-
VINEYARD SOUND-
103 PM EDT TUE JUL 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING
THROUGH WEDNESDAY EVENING...
THIS AFTERNOON
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT 6 SECONDS.
TONIGHT
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. WAVE DETAIL: S 3 FT AT 6 SECONDS. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
WED
SE WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE
4 FT AT 7 SECONDS. SHOWERS.
WED NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING S 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE
DETAIL: E 2 FT AT 6 SECONDS AND S 2 FT AT 7 SECONDS. SHOWERS.
PATCHY FOG IN THE EVENING.
THU
S 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 4 SECONDS AND
S 3 FT AT 7 SECONDS. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL:
SW 3 FT AT 9 SECONDS AND W 1 FOOT AT 5 SECONDS. A CHANCE OF
SHOWERS.
FRI
N WINDS AROUND 10 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
FRI NIGHT THROUGH SAT NIGHT
SW 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.
ANZ234-290600-
BUZZARDS BAY-
103 PM EDT TUE JUL 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING
THROUGH WEDNESDAY EVENING...
THIS AFTERNOON
S WINDS AROUND 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND SE 1 FOOT AT
7 SECONDS.
TONIGHT
SE 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 SE 2 FT AT 7 SECONDS.
A CHANCE OF SHOWERS AFTER MIDNIGHT.
WED
SE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SE 4 FT AT 9 SECONDS AND SE 3 FT AT 4 SECONDS.
SHOWERS.
WED NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING S 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE
DETAIL: E 2 FT AT 5 SECONDS. SHOWERS. PATCHY FOG IN THE EVENING.
THU
S WINDS 10 TO 15 KT, BECOMING SW WITH GUSTS UP TO 20 KT IN
THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT
4 SECONDS AND S 2 FT AT 7 SECONDS. A CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS LIKELY IN THE AFTERNOON.
THU NIGHT
N WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
NW 1 FOOT AT 4 SECONDS AND S 1 FOOT AT 9 SECONDS. A CHANCE OF
SHOWERS.
FRI
N WINDS AROUND 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
FRI NIGHT THROUGH SAT NIGHT
SW 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.
ANZ235-290600-
RHODE ISLAND SOUND-
103 PM EDT TUE JUL 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING
THROUGH WEDNESDAY EVENING...
THIS AFTERNOON
S WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 6 SECONDS.
TONIGHT
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SE 4 FT AT 6 SECONDS. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
WED
SE WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 4 TO 6 FT. WAVE DETAIL: S 6 FT
AT 7 SECONDS. SHOWERS.
WED NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING S AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: SE 4 FT
AT 7 SECONDS. SHOWERS LIKELY, MAINLY IN THE EVENING. PATCHY FOG
IN THE EVENING.
THU
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS AND SW 2 FT AT
7 SECONDS. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
4 FT AT 9 SECONDS AND NW 1 FOOT AT 4 SECONDS. A CHANCE OF
SHOWERS.
FRI THROUGH SAT NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ237-290600-
BLOCK ISLAND SOUND-
103 PM EDT TUE JUL 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING
THROUGH WEDNESDAY EVENING...
THIS AFTERNOON
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 6 SECONDS. A SLIGHT CHANCE
OF SHOWERS WITH ISOLATED TSTMS.
TONIGHT
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. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: S 5 FT AT 6 SECONDS. SHOWERS.
WED NIGHT
SE WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S
4 FT AT 6 SECONDS. A CHANCE OF SHOWERS.
THU
S WINDS AROUND 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
3 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS AROUND 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL:
SE 4 FT AT 9 SECONDS AND NW 2 FT AT 7 SECONDS. A CHANCE OF
SHOWERS IN THE EVENING.
FRI THROUGH SAT NIGHT
SW 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.
ANZ230-290600-
BOSTON HARBOR-
103 PM EDT TUE JUL 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
WEDNESDAY EVENING...
THIS AFTERNOON
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES AROUND 2 FT. A SLIGHT CHANCE OF SHOWERS WITH ISOLATED
TSTMS.
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES
AROUND 2 FT.
WED
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES 2 TO
3 FT. SHOWERS.
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. PATCHY FOG IN THE EVENING. VSBY 1 TO 3 NM.
THU AND THU NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES 2 TO 3 FT. SHOWERS.
FRI THROUGH SAT NIGHT
S 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.
ANZ236-290600-
NARRAGANSETT BAY-
103 PM EDT TUE JUL 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING
THROUGH WEDNESDAY EVENING...
THIS AFTERNOON
S WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT.
WAVES 2 TO 3 FT. A SLIGHT CHANCE OF SHOWERS WITH ISOLATED TSTMS.
TONIGHT
SE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES 2 TO
4 FT. SHOWERS.
WED NIGHT
E WINDS 10 TO 15 KT, BECOMING SE 5 TO 10 KT AFTER
MIDNIGHT. WAVES 2 TO 3 FT. SHOWERS LIKELY. PATCHY FOG IN THE
EVENING.
THU
E WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT IN THE
AFTERNOON. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS IN THE MORNING,
THEN SHOWERS LIKELY IN THE AFTERNOON.
THU NIGHT
N WINDS 5 TO 10 KT. WAVES 2 TO 3 FT. A CHANCE OF
SHOWERS.
FRI
N WINDS 5 TO 10 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
FRI NIGHT
N WINDS 5 TO 10 KT. WAVES AROUND 2 FT. A CHANCE OF
SHOWERS.
SAT AND SAT NIGHT
NE WINDS 5 TO 10 KT, BECOMING SW. WAVES
AROUND 2 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.
ANZ280-290600-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
103 PM EDT TUE JUL 28 2026
THIS AFTERNOON
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 3 FT. WAVE DETAIL: SE 3 FT AT 8 SECONDS AND S 2 FT AT
3 SECONDS.
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 3 FT. WAVE DETAIL: SE 3 FT AT 4 SECONDS AND SE 3 FT AT
8 SECONDS.
WED
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SE 5 FT AT 6 SECONDS. A CHANCE OF SHOWERS.
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. SHOWERS. PATCHY FOG
IN THE EVENING.
THU
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 4 TO
5 FT. WAVE DETAIL: E 5 FT AT 8 SECONDS. A CHANCE OF SHOWERS.
THU NIGHT
NE WINDS 5 TO 10 KT. SEAS 4 TO 5 FT. WAVE DETAIL: SE
5 FT AT 8 SECONDS AND S 1 FOOT AT 2 SECONDS. A CHANCE OF SHOWERS.
FRI
NE WINDS 5 TO 10 KT. SEAS 4 TO 5 FT. A CHANCE OF SHOWERS.
FRI NIGHT THROUGH SAT NIGHT
SW 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.
ANZ281-290600-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
103 PM EDT TUE JUL 28 2026
THIS AFTERNOON
S WINDS AROUND 10 KT. SEAS AROUND 3 FT. WAVE
DETAIL: SE 3 FT AT 7 SECONDS AND S 2 FT AT 3 SECONDS.
TONIGHT
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT AT 4 SECONDS AND
SE 3 FT AT 8 SECONDS.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: SE 5 FT AT 6 SECONDS. A CHANCE OF SHOWERS.
WED NIGHT
SE WINDS 15 TO 20 KT, BECOMING S 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 5 TO 6 FT. WAVE DETAIL: SE 5 FT
AT 8 SECONDS AND SW 2 FT AT 7 SECONDS. SHOWERS LIKELY, MAINLY IN
THE EVENING. PATCHY FOG IN THE EVENING. VSBY 1 TO 3 NM.
THU AND THU NIGHT
S WINDS 5 TO 10 KT. SEAS 4 TO 6 FT. WAVE
DETAIL: S 5 FT AT 8 SECONDS AND SW 1 FOOT AT 3 SECONDS. A CHANCE
OF SHOWERS IN THE MORNING. A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI THROUGH SAT NIGHT
SW WINDS 5 TO 10 KT. SEAS 3 TO 5 FT.
WAVE DETAIL: SE 5 FT AT 9 SECONDS AND W 1 FOOT AT 5 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.
ANZ282-290600-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
103 PM EDT TUE JUL 28 2026
THIS AFTERNOON
S WINDS AROUND 10 KT. SEAS 3 TO 4 FT. WAVE
DETAIL: S 3 FT AT 6 SECONDS.
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. WAVE DETAIL: S 4 FT AT 6 SECONDS.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS. SHOWERS.
WED NIGHT
S WINDS 10 TO 15 KT, BECOMING SW 5 TO 10 KT AFTER
MIDNIGHT. SEAS 5 TO 6 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS.
PATCHY FOG IN THE EVENING. A CHANCE OF SHOWERS IN THE EVENING.
THU AND THU NIGHT
W WINDS 5 TO 10 KT. SEAS 5 TO 6 FT. WAVE
DETAIL: S 5 FT AT 8 SECONDS AND W 3 FT AT 7 SECONDS.
FRI THROUGH SAT NIGHT
SW WINDS 5 TO 10 KT. SEAS 3 TO 5 FT.
WAVE DETAIL: S 5 FT AT 9 SECONDS AND W 1 FOOT AT 5 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.
ANZ283-290600-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
103 PM EDT TUE JUL 28 2026
THIS AFTERNOON
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 4 FT. WAVE DETAIL: S 3 FT AT 6 SECONDS.
TONIGHT
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: S 4 FT AT 6 SECONDS. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
WED
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
6 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS. SHOWERS.
WED NIGHT
S WINDS AROUND 10 KT. SEAS AROUND 5 FT. WAVE DETAIL:
S 5 FT AT 7 SECONDS AND SW 3 FT AT 8 SECONDS. PATCHY FOG IN THE
EVENING. A CHANCE OF SHOWERS IN THE EVENING.
THU
SW WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. WAVE DETAIL: S 5 FT
AT 9 SECONDS AND W 2 FT AT 6 SECONDS.
THU NIGHT
NW WINDS 10 TO 15 KT. SEAS AROUND 5 FT. WAVE DETAIL:
S 4 FT AT 8 SECONDS AND W 2 FT AT 5 SECONDS.
FRI THROUGH SAT NIGHT
SW WINDS 5 TO 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.
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