910
FZUS51 KBOX 141403
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1003 AM EDT FRI AUG 14 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-150300-
1003 AM EDT FRI AUG 14 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
HIGH PRESSURE BUILDS ACROSS THE NEW ENGLAND WATERS THIS WEEKEND,
LEADING TO TRANQUIL BOATING CONDITIONS. A PROGRESSIVE SYSTEM BRINGS
UNSETTLED WEATHER SUNDAY NIGHT INTO MONDAY, WITH THE POTENTIAL FOR
GUSTY WINDS AND BUILDING SEAS THAT MAY WARRANT SMALL CRAFT
ADVISORIES. HIGH PRESSURE RETURNS TUESDAY THROUGH THE MIDDLE OF NEXT
WEEK.
ANZ250-150300-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
1003 AM EDT FRI AUG 14 2026
THIS AFTERNOON
NW WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT,
BECOMING SW. SEAS AROUND 2 FT. WAVE DETAIL: NW 2 FT AT 3 SECONDS
AND SE 1 FOOT AT 11 SECONDS. ISOLATED SHOWERS AND TSTMS.
TONIGHT
W WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT, BECOMING N
AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: NE 2 FT AT
9 SECONDS AND NW 1 FOOT AT 3 SECONDS.
SAT
N WINDS 5 TO 10 KT, BECOMING NE IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: N 2 FT AT 6 SECONDS AND NW 1 FOOT AT
3 SECONDS.
SAT NIGHT
S WINDS AROUND 5 KT, BECOMING W AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: S 1 FOOT AT 2 SECONDS AND NE 1 FOOT AT
7 SECONDS.
SUN
SW WINDS AROUND 5 KT, BECOMING S 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 1 FOOT AT 8 SECONDS.
SUN NIGHT
S 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 4 SECONDS AND SE 1 FOOT AT 10 SECONDS. SHOWERS LIKELY AFTER
MIDNIGHT.
MON
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. SHOWERS LIKELY.
MON NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS.
TUE AND TUE NIGHT
N WINDS 5 TO 10 KT, BECOMING SW. 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.
ANZ251-150300-
MASSACHUSETTS BAY AND IPSWICH BAY-
1003 AM EDT FRI AUG 14 2026
THIS AFTERNOON
NW WINDS 5 TO 10 KT, BECOMING SW. SEAS AROUND
2 FT, THEN 1 FOOT OR LESS. WAVE DETAIL: NW 1 FOOT AT 3 SECONDS
AND E 1 FOOT AT 12 SECONDS, BECOMING NW 1 FOOT AT 2 SECONDS AND E
1 FOOT AT 11 SECONDS. ISOLATED SHOWERS AND TSTMS.
TONIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: W 1 FOOT AT 2 SECONDS AND NE 1 FOOT AT
9 SECONDS.
SAT
N WINDS 5 TO 10 KT, BECOMING E IN THE AFTERNOON. SEAS
1 FOOT OR LESS. WAVE DETAIL: NW 1 FOOT AT 2 SECONDS AND NE 1 FOOT
AT 5 SECONDS.
SAT NIGHT
S WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
1 FOOT OR LESS. WAVE DETAIL: SE 1 FOOT AT 2 SECONDS AND NE 1 FOOT
AT 6 SECONDS.
SUN
W WINDS AROUND 5 KT, BECOMING SE 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT
IN THE AFTERNOON. WAVE DETAIL: SW 1 FOOT AT 2 SECONDS AND NE
1 FOOT AT 7 SECONDS, BECOMING SE 2 FT AT 3 SECONDS AND E 1 FOOT
AT 10 SECONDS.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 3 SECONDS AND E 1 FOOT AT
10 SECONDS. A CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS
AFTER MIDNIGHT.
MON
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS AROUND
2 FT. SHOWERS.
MON NIGHT
N WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. A CHANCE OF
SHOWERS.
TUE AND TUE NIGHT
NE WINDS 5 TO 10 KT, BECOMING S. SEAS 1 FOOT
OR LESS, THEN 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.
ANZ231-150300-
CAPE COD BAY-
1003 AM EDT FRI AUG 14 2026
THIS AFTERNOON
N WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT,
BECOMING NE. SEAS AROUND 2 FT. WAVE DETAIL: NW 1 FOOT AT
3 SECONDS AND E 1 FOOT AT 10 SECONDS. ISOLATED SHOWERS AND TSTMS.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING N WITH GUSTS UP TO 20 KT
AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: NW 1 FOOT AT
3 SECONDS AND NE 1 FOOT AT 10 SECONDS. SCATTERED SHOWERS IN THE
EVENING.
SAT
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT IN THE MORNING, THEN
1 FOOT OR LESS. WAVE DETAIL: N 1 FOOT AT 3 SECONDS, BECOMING N
1 FOOT AT 4 SECONDS.
SAT NIGHT
SE WINDS AROUND 5 KT, BECOMING SW AFTER MIDNIGHT.
SEAS 1 FOOT OR LESS. WAVE DETAIL: N 1 FOOT AT 4 SECONDS.
SUN
S WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT. SEAS 1 FOOT OR
LESS, THEN AROUND 2 FT IN THE AFTERNOON. WAVE DETAIL: NW 1 FOOT
AT 4 SECONDS, BECOMING S 1 FOOT AT 3 SECONDS AND NE 1 FOOT AT
4 SECONDS.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 3 FT. WAVE DETAIL: SE 2 FT AT 4 SECONDS. SHOWERS LIKELY
AFTER MIDNIGHT.
MON
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. SHOWERS LIKELY.
MON NIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
TUE AND TUE NIGHT
N WINDS 5 TO 10 KT, BECOMING S. SEAS AROUND
2 FT, THEN 1 FOOT OR LESS.
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.
ANZ254-150300-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
1003 AM EDT FRI AUG 14 2026
THIS AFTERNOON
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT. SEAS
AROUND 2 FT. WAVE DETAIL: NW 2 FT AT 4 SECONDS AND E 1 FOOT AT
12 SECONDS.
TONIGHT
SW WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT, BECOMING N
AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: W 1 FOOT AT
4 SECONDS AND E 1 FOOT AT 10 SECONDS.
SAT
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: N 2 FT
AT 6 SECONDS AND SW 1 FOOT AT 6 SECONDS.
SAT NIGHT
SE WINDS AROUND 5 KT, BECOMING W AROUND 5 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: N 2 FT AT 6 SECONDS AND
S 1 FOOT AT 6 SECONDS.
SUN
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT
AT 4 SECONDS AND NE 1 FOOT AT 7 SECONDS.
SUN NIGHT
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT, BUILDING TO 3 TO
5 FT AFTER MIDNIGHT. WAVE DETAIL: S 2 FT AT 3 SECONDS AND SE
1 FOOT AT 8 SECONDS, BECOMING S 3 FT AT 4 SECONDS AND SE 1 FOOT
AT 9 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
MON
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. SHOWERS.
MON NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 4 FT. A CHANCE OF SHOWERS.
TUE AND TUE NIGHT
N WINDS 5 TO 10 KT, BECOMING S. SEAS 2 TO
3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ255-150300-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
1003 AM EDT FRI AUG 14 2026
THIS AFTERNOON
N WINDS 5 TO 10 KT, BECOMING W. SEAS AROUND
2 FT. WAVE DETAIL: NW 2 FT AT 4 SECONDS AND E 1 FOOT AT
10 SECONDS.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 4 SECONDS AND E 1 FOOT AT
10 SECONDS.
SAT
NE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS AROUND 2 FT. WAVE DETAIL: NE 2 FT AT 5 SECONDS AND S 1 FOOT
AT 5 SECONDS.
SAT NIGHT
SE WINDS AROUND 5 KT, BECOMING SW AFTER MIDNIGHT.
SEAS AROUND 2 FT. WAVE DETAIL: SE 1 FOOT AT 6 SECONDS.
SUN
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT
AT 4 SECONDS AND E 1 FOOT AT 8 SECONDS.
SUN NIGHT
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT, BUILDING TO 4 TO
6 FT AFTER MIDNIGHT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND SE
1 FOOT AT 9 SECONDS, BECOMING S 5 FT AT 7 SECONDS. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
MON
S WINDS 20 TO 25 KT. SEAS 5 TO 7 FT. SHOWERS LIKELY.
MON NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 5 FT. A CHANCE OF SHOWERS.
TUE AND TUE NIGHT
N WINDS 10 TO 15 KT, BECOMING S 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.
ANZ256-150300-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
1003 AM EDT FRI AUG 14 2026
THIS AFTERNOON
N WINDS 5 TO 10 KT, BECOMING SW. SEAS AROUND
2 FT. WAVE DETAIL: NW 2 FT AT 4 SECONDS AND SE 1 FOOT AT
11 SECONDS.
TONIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: W 2 FT AT 5 SECONDS AND E 2 FT AT
10 SECONDS.
SAT
NE WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT, BECOMING SE
IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: NE 2 FT AT
5 SECONDS AND SW 1 FOOT AT 6 SECONDS.
SAT NIGHT
S WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE DETAIL:
S 1 FOOT AT 5 SECONDS AND SE 1 FOOT AT 8 SECONDS.
SUN
SW WINDS AROUND 5 KT, BECOMING S 10 TO 15 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND
SE 1 FOOT AT 9 SECONDS.
SUN NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 4 FT, BUILDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: S
3 FT AT 5 SECONDS AND SE 1 FOOT AT 9 SECONDS, BECOMING S 6 FT AT
6 SECONDS AND SE 1 FOOT AT 9 SECONDS. SHOWERS LIKELY AFTER
MIDNIGHT.
MON
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. SHOWERS LIKELY.
MON NIGHT THROUGH TUE 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.
ANZ232-150300-
NANTUCKET SOUND-
1003 AM EDT FRI AUG 14 2026
THIS AFTERNOON
N WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT,
BECOMING NE. SEAS AROUND 2 FT. WAVE DETAIL: NW 1 FOOT AT
3 SECONDS AND E 1 FOOT AT 12 SECONDS.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 3 SECONDS AND E 1 FOOT AT
12 SECONDS. SCATTERED SHOWERS IN THE EVENING.
SAT
NE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS AROUND 2 FT IN THE MORNING, THEN 1 FOOT OR LESS. WAVE
DETAIL: NE 1 FOOT AT 3 SECONDS AND SW 1 FOOT AT 4 SECONDS,
BECOMING W 1 FOOT AT 3 SECONDS AND NE 1 FOOT AT 4 SECONDS.
SAT NIGHT
S WINDS AROUND 5 KT, BECOMING SW AFTER MIDNIGHT.
SEAS 1 FOOT OR LESS. WAVE DETAIL: S 1 FOOT AT 3 SECONDS AND NE
1 FOOT AT 6 SECONDS.
SUN
SW WINDS AROUND 5 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT
IN THE AFTERNOON. WAVE DETAIL: SW 1 FOOT AT 2 SECONDS AND E
1 FOOT AT 7 SECONDS, BECOMING S 2 FT AT 3 SECONDS AND E 1 FOOT AT
9 SECONDS.
SUN NIGHT
S 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: S 3 FT
AT 4 SECONDS AND SE 1 FOOT AT 10 SECONDS. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
MON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. SHOWERS.
MON NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS.
TUE AND TUE NIGHT
N WINDS 10 TO 15 KT, BECOMING S 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.
ANZ233-150300-
VINEYARD SOUND-
1003 AM EDT FRI AUG 14 2026
THIS AFTERNOON
N WINDS AROUND 5 KT, BECOMING SW. SEAS 1 FOOT
OR LESS, THEN AROUND 2 FT. WAVE DETAIL: W 1 FOOT AT 4 SECONDS AND
E 1 FOOT AT 11 SECONDS, BECOMING SW 1 FOOT AT 5 SECONDS AND E
1 FOOT AT 9 SECONDS.
TONIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 4 SECONDS AND SE 1 FOOT AT
11 SECONDS. SCATTERED SHOWERS IN THE EVENING.
SAT
N WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. SEAS
AROUND 2 FT IN THE MORNING, THEN 1 FOOT OR LESS. WAVE DETAIL: NE
1 FOOT AT 3 SECONDS AND SW 1 FOOT AT 5 SECONDS, BECOMING SW
1 FOOT AT 6 SECONDS AND E 1 FOOT AT 6 SECONDS.
SAT NIGHT
S WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: S 1 FOOT AT 3 SECONDS AND E 1 FOOT AT 9 SECONDS.
SUN
SW WINDS AROUND 5 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS 1 FOOT OR LESS, THEN 2 TO 3 FT IN
THE AFTERNOON. WAVE DETAIL: SW 1 FOOT AT 3 SECONDS AND SE 1 FOOT
AT 9 SECONDS, BECOMING SW 2 FT AT 3 SECONDS AND SE 1 FOOT AT
9 SECONDS.
SUN NIGHT
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT, BUILDING TO 3 TO
5 FT AFTER MIDNIGHT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND SE
1 FOOT AT 9 SECONDS, BECOMING SW 5 FT AT 6 SECONDS AND SE 1 FOOT
AT 10 SECONDS. SHOWERS LIKELY AFTER MIDNIGHT.
MON
S WINDS 20 TO 25 KT. SEAS 3 TO 5 FT. SHOWERS LIKELY.
MON NIGHT
NW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS.
TUE AND TUE NIGHT
NE WINDS 5 TO 10 KT, BECOMING S. 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.
ANZ234-150300-
BUZZARDS BAY-
1003 AM EDT FRI AUG 14 2026
THIS AFTERNOON
NW WINDS AROUND 5 KT, BECOMING SW. SEAS 1 FOOT
OR LESS, THEN AROUND 2 FT. WAVE DETAIL: NW 1 FOOT AT 4 SECONDS
AND E 1 FOOT AT 11 SECONDS, BECOMING SW 1 FOOT AT 4 SECONDS AND E
1 FOOT AT 8 SECONDS. ISOLATED SHOWERS AND TSTMS.
TONIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 3 SECONDS AND E 1 FOOT AT
10 SECONDS. SCATTERED SHOWERS IN THE EVENING.
SAT
N WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
AROUND 2 FT IN THE MORNING, THEN 1 FOOT OR LESS. WAVE DETAIL: NE
1 FOOT AT 2 SECONDS AND SW 1 FOOT AT 3 SECONDS, BECOMING NE
1 FOOT AT 2 SECONDS AND SW 1 FOOT AT 5 SECONDS.
SAT NIGHT
S WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: S 1 FOOT AT 3 SECONDS AND E 1 FOOT AT 9 SECONDS.
SUN
SW WINDS AROUND 5 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS 1 FOOT OR LESS, THEN 2 TO 3 FT IN
THE AFTERNOON. WAVE DETAIL: SW 1 FOOT AT 3 SECONDS AND E 1 FOOT
AT 8 SECONDS, BECOMING SW 2 FT AT 3 SECONDS AND SE 1 FOOT AT
8 SECONDS.
SUN NIGHT
S WINDS AROUND 15 KT, INCREASING TO 20 TO 25 KT
AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS
AND SE 1 FOOT AT 8 SECONDS. A CHANCE OF SHOWERS IN THE EVENING,
THEN SHOWERS LIKELY AFTER MIDNIGHT.
MON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO
4 FT. SHOWERS LIKELY.
MON NIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
TUE AND TUE NIGHT
NE WINDS 5 TO 10 KT, BECOMING SW. 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.
ANZ235-150300-
RHODE ISLAND SOUND-
1003 AM EDT FRI AUG 14 2026
THIS AFTERNOON
NW WINDS AROUND 5 KT, BECOMING SW. SEAS AROUND
2 FT. WAVE DETAIL: W 1 FOOT AT 5 SECONDS AND SE 1 FOOT AT
11 SECONDS.
TONIGHT
W WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT, BECOMING N
AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT
4 SECONDS AND SE 1 FOOT AT 10 SECONDS.
SAT
NE WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT, BECOMING S IN
THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: NE 2 FT AT
4 SECONDS AND S 1 FOOT AT 6 SECONDS.
SAT NIGHT
S WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: SW 1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 9 SECONDS.
SUN
SW WINDS AROUND 5 KT, BECOMING S 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 1 FOOT AT 9 SECONDS.
SUN NIGHT
S WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT, BUILDING TO 4 TO 6 FT AFTER MIDNIGHT.
WAVE DETAIL: S 3 FT AT 4 SECONDS AND SE 1 FOOT AT 9 SECONDS,
BECOMING S 6 FT AT 6 SECONDS AND SE 1 FOOT AT 9 SECONDS. A CHANCE
OF SHOWERS IN THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.
MON
S WINDS 20 TO 25 KT. SEAS 4 TO 6 FT. SHOWERS LIKELY.
MON NIGHT THROUGH TUE NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO
3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ237-150300-
BLOCK ISLAND SOUND-
1003 AM EDT FRI AUG 14 2026
THIS AFTERNOON
NW WINDS AROUND 5 KT, BECOMING SW. SEAS AROUND
2 FT, THEN 1 FOOT OR LESS. WAVE DETAIL: W 1 FOOT AT 4 SECONDS AND
SE 1 FOOT AT 10 SECONDS, BECOMING SW 1 FOOT AT 4 SECONDS AND SE
1 FOOT AT 10 SECONDS.
TONIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: W 1 FOOT AT 4 SECONDS AND SE 1 FOOT AT
10 SECONDS.
SAT
NE WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT, BECOMING S IN
THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: NE 1 FOOT AT
5 SECONDS AND S 1 FOOT AT 6 SECONDS.
SAT NIGHT
SW WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: SW 1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS.
SUN
SW WINDS AROUND 5 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS 1 FOOT OR LESS, THEN 2 TO 3 FT IN
THE AFTERNOON. WAVE DETAIL: SW 1 FOOT AT 4 SECONDS AND SE 1 FOOT
AT 9 SECONDS, BECOMING S 2 FT AT 4 SECONDS AND SE 1 FOOT AT
9 SECONDS.
SUN NIGHT
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT
AT 6 SECONDS AND SE 1 FOOT AT 9 SECONDS. A CHANCE OF SHOWERS IN
THE EVENING, THEN SHOWERS AFTER MIDNIGHT.
MON
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. SHOWERS.
MON NIGHT THROUGH TUE 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.
ANZ230-150300-
BOSTON HARBOR-
1003 AM EDT FRI AUG 14 2026
THIS AFTERNOON
NW WINDS AROUND 5 KT. WAVES AROUND 2 FT, THEN
1 FOOT OR LESS. SCATTERED SHOWERS WITH ISOLATED TSTMS.
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. SCATTERED
SHOWERS IN THE EVENING.
SAT
N WINDS 5 TO 10 KT, BECOMING E IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
SAT NIGHT
SE WINDS AROUND 5 KT, BECOMING W AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS.
SUN
SW WINDS AROUND 5 KT, BECOMING SE 10 TO 15 KT IN THE
AFTERNOON. WAVES 1 FOOT OR LESS, THEN AROUND 2 FT IN THE
AFTERNOON.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES
AROUND 2 FT. A CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS
AFTER MIDNIGHT.
MON
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES AROUND
2 FT. SHOWERS.
MON NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. A CHANCE
OF SHOWERS.
TUE AND TUE NIGHT
NE WINDS 5 TO 10 KT, BECOMING S. 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.
ANZ236-150300-
NARRAGANSETT BAY-
1003 AM EDT FRI AUG 14 2026
THIS AFTERNOON
N WINDS AROUND 5 KT, BECOMING SW. WAVES 1 FOOT
OR LESS, THEN AROUND 2 FT. ISOLATED SHOWERS AND TSTMS.
TONIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. WAVES
AROUND 2 FT IN THE EVENING, THEN 1 FOOT OR LESS.
SAT
N WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
SUN
SW WINDS AROUND 5 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. WAVES 1 FOOT OR LESS, THEN 2 TO 3 FT
IN THE AFTERNOON.
SUN NIGHT
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. WAVES 2 TO 4 FT. A CHANCE OF SHOWERS
IN THE EVENING, THEN SHOWERS AFTER MIDNIGHT.
MON
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES 2 TO
4 FT. SHOWERS.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES AROUND 2 FT. A CHANCE OF
SHOWERS.
TUE AND TUE 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.
ANZ280-150300-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
1003 AM EDT FRI AUG 14 2026
THIS AFTERNOON
NW WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT,
BECOMING W. SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT AT 4 SECONDS AND
E 1 FOOT AT 12 SECONDS.
TONIGHT
W WINDS AROUND 10 KT, BECOMING N AFTER MIDNIGHT. GUSTS
UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND
E 1 FOOT AT 11 SECONDS.
SAT
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: N 2 FT
AT 4 SECONDS AND SE 1 FOOT AT 10 SECONDS.
SAT NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
NW 1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 10 SECONDS.
SUN
W WINDS 5 TO 10 KT, BECOMING S WITH GUSTS UP TO 20 KT IN
THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS
AND SE 1 FOOT AT 9 SECONDS.
SUN NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 4 FT. WAVE DETAIL: S 4 FT AT 4 SECONDS AND SE 1 FOOT AT
9 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
MON
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. SHOWERS LIKELY.
MON NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 4 FT. A CHANCE OF SHOWERS.
TUE AND TUE 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.
ANZ281-150300-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
1003 AM EDT FRI AUG 14 2026
THIS AFTERNOON
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: NW 2 FT AT 4 SECONDS AND E 1 FOOT AT
11 SECONDS.
TONIGHT
W WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT, BECOMING NW
AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS
AND E 1 FOOT AT 10 SECONDS.
SAT
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT
AT 5 SECONDS AND E 2 FT AT 9 SECONDS.
SAT NIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 5 SECONDS AND NE 2 FT AT 7 SECONDS.
SUN
W WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND SE 1 FOOT AT
9 SECONDS.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 3 FT, BUILDING TO 3 TO 5 FT AFTER MIDNIGHT. WAVE DETAIL: S
2 FT AT 4 SECONDS AND SE 1 FOOT AT 9 SECONDS, BECOMING S 3 FT AT
4 SECONDS AND SE 1 FOOT AT 9 SECONDS. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
MON
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. SHOWERS.
MON NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT. A CHANCE OF SHOWERS.
TUE AND TUE NIGHT
N WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT,
BECOMING W. 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.
ANZ282-150300-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
1003 AM EDT FRI AUG 14 2026
THIS AFTERNOON
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: W 2 FT AT 5 SECONDS AND E 1 FOOT AT
10 SECONDS.
TONIGHT
W WINDS AROUND 5 KT, BECOMING N AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: SW 1 FOOT AT 5 SECONDS AND E 1 FOOT AT
10 SECONDS.
SAT
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT
AT 8 SECONDS AND SW 1 FOOT AT 5 SECONDS.
SAT NIGHT
NE WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: NE 2 FT AT 7 SECONDS AND S 1 FOOT AT
5 SECONDS.
SUN
E WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: S 1 FOOT AT 5 SECONDS AND NE 1 FOOT AT
7 SECONDS.
SUN NIGHT
S WINDS 5 TO 10 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT, BUILDING TO 4 TO 6 FT AFTER MIDNIGHT.
WAVE DETAIL: S 2 FT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS,
BECOMING S 4 FT AT 7 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
MON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. SHOWERS.
MON NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 5 FT. A CHANCE OF SHOWERS.
TUE AND TUE NIGHT
N WINDS 5 TO 10 KT, BECOMING S. SEAS 3 TO
4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ283-150300-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
1003 AM EDT FRI AUG 14 2026
THIS AFTERNOON
N WINDS 5 TO 10 KT, DIMINISHING TO AROUND 5 KT.
SEAS AROUND 2 FT. WAVE DETAIL: NW 2 FT AT 4 SECONDS AND SE 1 FOOT
AT 11 SECONDS.
TONIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: W 2 FT AT 5 SECONDS AND E 2 FT AT
10 SECONDS.
SAT
NE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT 6 SECONDS AND NE 2 FT AT
6 SECONDS.
SAT NIGHT
SE WINDS AROUND 5 KT, BECOMING S AFTER MIDNIGHT.
SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT AT 7 SECONDS AND S 1 FOOT
AT 6 SECONDS.
SUN
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT
4 SECONDS AND SE 1 FOOT AT 8 SECONDS.
SUN NIGHT
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT, BUILDING TO 5 TO
7 FT AFTER MIDNIGHT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND SE
1 FOOT AT 9 SECONDS, BECOMING S 6 FT AT 6 SECONDS AND SE 1 FOOT
AT 9 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
MON
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. SHOWERS LIKELY.
MON NIGHT THROUGH TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 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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