700
FZUS51 KBOX 311704
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
103 PM EDT MON AUG 31 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-010600-
103 PM EDT MON AUG 31 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
A WARM FRONT SLOWLY LIFTS NORTH TOMORROW THROUGH THU. LOW PRES AND
ITS ASSOCIATED COLD FRONT WILL CROSS THE WATERS THU AFTERNOON INTO
THU NIGHT. THIS LOW PRES SYSTEM WILL INTENSIFY AS IT LIFTS NE
TOWARDS THE CANADIAN MARITIMES FRI AND SHIFT FARTHER E BY THE
HOLIDAY WEEKEND.
ANZ250-010600-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
103 PM EDT MON AUG 31 2026
THIS AFTERNOON
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: N 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 8 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S
1 FOOT AT 2 SECONDS AND NE 1 FOOT AT 4 SECONDS. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
TUE
SE 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: SE
2 FT AT 3 SECONDS AND SE 1 FOOT AT 8 SECONDS. A CHANCE OF
SHOWERS. PATCHY FOG IN THE MORNING.
TUE NIGHT
E WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL:
SE 2 FT AT 4 SECONDS AND SE 1 FOOT AT 9 SECONDS.
WED
SE WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
3 FT AT 5 SECONDS AND SE 3 FT AT 11 SECONDS.
WED NIGHT
SE WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL:
SE 3 FT AT 6 SECONDS AND SE 3 FT AT 10 SECONDS. SHOWERS WITH A
CHANCE OF TSTMS.
THU
S 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
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS.
FRI AND FRI NIGHT
N WINDS 5 TO 10 KT, INCREASING TO 10 TO
15 KT WITH GUSTS UP TO 20 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.
ANZ251-010600-
MASSACHUSETTS BAY AND IPSWICH BAY-
103 PM EDT MON AUG 31 2026
THIS AFTERNOON
E WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: NE 1 FOOT AT 3 SECONDS AND NW 1 FOOT AT 3 SECONDS.
TONIGHT
S WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT IN THE EVENING, THEN 1 FOOT OR LESS.
WAVE DETAIL: SE 2 FT AT 3 SECONDS AND SE 1 FOOT AT 8 SECONDS,
BECOMING SE 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 8 SECONDS. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
SE 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: SE
2 FT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS. PATCHY FOG. A
CHANCE OF SHOWERS.
TUE NIGHT
E WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 4 SECONDS AND
SE 1 FOOT AT 8 SECONDS.
WED
SE WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
2 FT AT 4 SECONDS AND SE 1 FOOT AT 11 SECONDS.
WED NIGHT
SE WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SE 2 FT AT 5 SECONDS AND SE 2 FT AT 10 SECONDS. SHOWERS
WITH A CHANCE OF TSTMS.
THU
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. SHOWERS WITH A
CHANCE OF TSTMS.
THU NIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS AND TSTMS.
FRI AND FRI NIGHT
N WINDS 5 TO 10 KT, INCREASING TO 10 TO
15 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.
ANZ231-010600-
CAPE COD BAY-
103 PM EDT MON AUG 31 2026
THIS AFTERNOON
E WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: N 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 8 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE DETAIL:
E 1 FOOT AT 2 SECONDS AND NW 1 FOOT AT 3 SECONDS. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
TUE
SE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS AROUND 2 FT. WAVE DETAIL: S 1 FOOT AT 3 SECONDS AND SE
1 FOOT AT 8 SECONDS. PATCHY FOG. SHOWERS LIKELY.
TUE NIGHT
E WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SE 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 9 SECONDS.
WED
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT
AT 11 SECONDS AND E 1 FOOT AT 2 SECONDS.
WED NIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
E 2 FT AT 10 SECONDS AND SE 1 FOOT AT 2 SECONDS. A CHANCE OF
SHOWERS IN THE EVENING, THEN SHOWERS LIKELY WITH A CHANCE OF
TSTMS AFTER MIDNIGHT.
THU
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. SHOWERS LIKELY WITH
A CHANCE OF TSTMS.
THU NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS AND TSTMS.
FRI AND FRI NIGHT
N WINDS 5 TO 10 KT, INCREASING TO 10 TO
15 KT WITH GUSTS UP TO 20 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.
ANZ254-010600-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
103 PM EDT MON AUG 31 2026
THIS AFTERNOON
E WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE
DETAIL: N 1 FOOT AT 4 SECONDS AND SW 1 FOOT AT 5 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NE
1 FOOT AT 4 SECONDS AND SW 1 FOOT AT 5 SECONDS. PATCHY FOG AFTER
MIDNIGHT.
TUE
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT AT 4 SECONDS AND SW 1 FOOT
AT 4 SECONDS. A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS
LIKELY IN THE AFTERNOON. PATCHY FOG IN THE AFTERNOON.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
3 FT AT 4 SECONDS AND SE 3 FT AT 12 SECONDS.
WED
E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SE 4 FT
AT 6 SECONDS.
WED NIGHT
SE WINDS AROUND 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL:
SE 4 FT AT 9 SECONDS AND S 2 FT AT 5 SECONDS. A CHANCE OF SHOWERS
IN THE EVENING, THEN SHOWERS LIKELY WITH A CHANCE OF TSTMS AFTER
MIDNIGHT.
THU
S 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
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS AND TSTMS.
FRI AND FRI NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 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.
ANZ255-010600-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
103 PM EDT MON AUG 31 2026
THIS AFTERNOON
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 2 FT AT 5 SECONDS AND NE 1 FOOT AT 3 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW
2 FT AT 5 SECONDS AND E 1 FOOT AT 3 SECONDS. PATCHY FOG AFTER
MIDNIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
2 FT. WAVE DETAIL: SE 2 FT AT 4 SECONDS AND SW 1 FOOT AT
5 SECONDS. PATCHY FOG. SHOWERS LIKELY.
TUE NIGHT
E WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 5 SECONDS AND SE 3 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
WED
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.
WED NIGHT
SE WINDS AROUND 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL:
S 4 FT AT 7 SECONDS AND NE 2 FT AT 4 SECONDS. A CHANCE OF SHOWERS
IN THE EVENING, THEN SHOWERS LIKELY WITH A CHANCE OF TSTMS AFTER
MIDNIGHT.
THU
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS
AND TSTMS.
THU NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS.
FRI AND FRI NIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 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.
ANZ256-010600-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
103 PM EDT MON AUG 31 2026
THIS AFTERNOON
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 2 FT AT 5 SECONDS AND NE 1 FOOT AT 3 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: E
1 FOOT AT 3 SECONDS AND SW 1 FOOT AT 5 SECONDS. PATCHY FOG AFTER
MIDNIGHT. SHOWERS LIKELY AFTER MIDNIGHT.
TUE
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 4 SECONDS AND SW 1 FOOT
AT 4 SECONDS. PATCHY FOG. SHOWERS LIKELY IN THE MORNING. A CHANCE
OF SHOWERS IN THE AFTERNOON. VSBY 1 TO 3 NM IN THE MORNING.
TUE NIGHT
E WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: E 3 FT AT 5 SECONDS AND SE 3 FT AT
12 SECONDS. A CHANCE OF SHOWERS.
WED
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SE 4 FT AT 6 SECONDS. A CHANCE OF SHOWERS IN
THE AFTERNOON.
WED NIGHT
SE WINDS 10 TO 15 KT, BECOMING S AFTER MIDNIGHT.
SEAS 3 TO 4 FT. WAVE DETAIL: NE 4 FT AT 5 SECONDS AND SE 4 FT AT
8 SECONDS. A CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS
LIKELY WITH A CHANCE OF TSTMS AFTER MIDNIGHT.
THU AND THU NIGHT
SW WINDS 10 TO 15 KT, BECOMING W. SEAS
AROUND 3 FT. A CHANCE OF SHOWERS AND TSTMS.
FRI AND FRI NIGHT
NW WINDS 5 TO 10 KT, INCREASING TO 10 TO
15 KT. SEAS AROUND 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.
ANZ232-010600-
NANTUCKET SOUND-
103 PM EDT MON AUG 31 2026
THIS AFTERNOON
E WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: NE 1 FOOT AT 2 SECONDS AND SW 1 FOOT AT 5 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE DETAIL:
E 1 FOOT AT 2 SECONDS AND SW 1 FOOT AT 5 SECONDS. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
TUE
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
2 FT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND SE 1 FOOT AT
8 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS.
TUE NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 5 SECONDS AND SE 1 FOOT AT
8 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
WED
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
2 FT. WAVE DETAIL: SE 2 FT AT 5 SECONDS AND SE 2 FT AT
11 SECONDS.
WED NIGHT
SE WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SE 2 FT AT 5 SECONDS AND SE 2 FT AT 10 SECONDS. A CHANCE
OF SHOWERS IN THE EVENING, THEN SHOWERS LIKELY WITH A CHANCE OF
TSTMS AFTER MIDNIGHT.
THU
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
THU NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS AND TSTMS.
FRI AND FRI NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 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.
ANZ233-010600-
VINEYARD SOUND-
103 PM EDT MON AUG 31 2026
THIS AFTERNOON
SE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: E 1 FOOT AT 2 SECONDS AND SW 1 FOOT AT 5 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE DETAIL:
SE 1 FOOT AT 2 SECONDS AND SW 1 FOOT AT 5 SECONDS. PATCHY FOG
AFTER MIDNIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
2 FT. WAVE DETAIL: E 2 FT AT 3 SECONDS AND SW 1 FOOT AT
5 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS IN THE MORNING.
SHOWERS LIKELY IN THE AFTERNOON.
TUE NIGHT
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT AT 3 SECONDS AND S
1 FOOT AT 4 SECONDS. A CHANCE OF SHOWERS.
WED
E WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT
AT 3 SECONDS AND SE 2 FT AT 13 SECONDS.
WED NIGHT
SE WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SE 2 FT AT 10 SECONDS AND SE 1 FOOT AT 4 SECONDS. A
CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS WITH A CHANCE OF
TSTMS AFTER MIDNIGHT.
THU
SW WINDS AROUND 10 KT. SEAS AROUND 2 FT. SHOWERS WITH A
CHANCE OF TSTMS.
THU NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS AND TSTMS.
FRI AND FRI NIGHT
NW WINDS 10 TO 15 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.
ANZ234-010600-
BUZZARDS BAY-
103 PM EDT MON AUG 31 2026
THIS AFTERNOON
SE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: E 1 FOOT AT 2 SECONDS AND SW 1 FOOT AT 5 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE DETAIL:
SE 1 FOOT AT 2 SECONDS AND S 1 FOOT AT 5 SECONDS. PATCHY FOG
AFTER MIDNIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
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
8 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS IN THE MORNING.
SHOWERS LIKELY IN THE AFTERNOON.
TUE NIGHT
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS AROUND 2 FT. WAVE DETAIL: SE 1 FOOT AT 4 SECONDS
AND SE 1 FOOT AT 8 SECONDS. A CHANCE OF SHOWERS.
WED
E WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 17 SECONDS.
WED NIGHT
SE WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SE 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 12 SECONDS. A
CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS WITH A CHANCE OF
TSTMS AFTER MIDNIGHT.
THU
SW WINDS AROUND 10 KT. SEAS AROUND 2 FT. SHOWERS WITH A
CHANCE OF TSTMS.
THU NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS AND TSTMS.
FRI AND FRI NIGHT
NW WINDS 5 TO 10 KT, BECOMING N 10 TO 15 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.
ANZ235-010600-
RHODE ISLAND SOUND-
103 PM EDT MON AUG 31 2026
THIS AFTERNOON
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 2 FT AT 5 SECONDS AND E 1 FOOT AT 2 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S
1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS. PATCHY FOG AFTER
MIDNIGHT. SHOWERS LIKELY AFTER MIDNIGHT.
TUE
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND SE 1 FOOT
AT 8 SECONDS. PATCHY FOG. SHOWERS LIKELY.
TUE NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 5 SECONDS AND SE 1 FOOT AT
9 SECONDS. A CHANCE OF SHOWERS.
WED
E WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT
AT 5 SECONDS AND SE 3 FT AT 11 SECONDS. A CHANCE OF SHOWERS IN
THE AFTERNOON.
WED NIGHT
SE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL:
SE 3 FT AT 8 SECONDS AND E 1 FOOT AT 4 SECONDS. A CHANCE OF
SHOWERS IN THE EVENING, THEN SHOWERS LIKELY WITH A CHANCE OF
TSTMS AFTER MIDNIGHT.
THU AND THU NIGHT
SW WINDS 10 TO 15 KT, BECOMING W 5 TO 10 KT.
SEAS 2 TO 3 FT. A CHANCE OF SHOWERS AND TSTMS.
FRI AND FRI NIGHT
NW WINDS 5 TO 10 KT, INCREASING TO 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.
ANZ237-010600-
BLOCK ISLAND SOUND-
103 PM EDT MON AUG 31 2026
THIS AFTERNOON
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: E 1 FOOT AT 2 SECONDS AND S 1 FOOT AT 5 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: E
1 FOOT AT 3 SECONDS AND S 1 FOOT AT 5 SECONDS. PATCHY FOG AFTER
MIDNIGHT. SHOWERS LIKELY AFTER MIDNIGHT.
TUE
SE WINDS 5 TO 10 KT, BECOMING E 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT
AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS. PATCHY FOG. SHOWERS
LIKELY IN THE MORNING. A CHANCE OF SHOWERS IN THE AFTERNOON.
TUE NIGHT
E 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 SE 1 FOOT AT
8 SECONDS. A CHANCE OF SHOWERS.
WED
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: E 3 FT AT 5 SECONDS AND SE 3 FT AT 11 SECONDS.
A CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
SE WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 8 SECONDS AND E 2 FT AT
5 SECONDS. A CHANCE OF SHOWERS IN THE EVENING. SHOWERS LIKELY
AFTER MIDNIGHT.
THU AND THU NIGHT
SW WINDS AROUND 10 KT, BECOMING W. 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.
ANZ230-010600-
BOSTON HARBOR-
103 PM EDT MON AUG 31 2026
THIS AFTERNOON
E WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES AROUND 2 FT IN THE EVENING,
THEN 1 FOOT OR LESS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
SE WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. WAVES AROUND 2 FT. PATCHY FOG.
SHOWERS IN THE MORNING. A CHANCE OF SHOWERS IN THE AFTERNOON.
TUE NIGHT
E WINDS 5 TO 10 KT. WAVES AROUND 2 FT IN THE
EVENING, THEN 1 FOOT OR LESS. A CHANCE OF SHOWERS.
WED
SE WINDS 5 TO 10 KT. WAVES AROUND 2 FT. A CHANCE OF
SHOWERS IN THE AFTERNOON.
WED NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. SHOWERS
WITH A CHANCE OF TSTMS.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. SHOWERS LIKELY
WITH A CHANCE OF TSTMS.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. A CHANCE
OF SHOWERS AND 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.
ANZ236-010600-
NARRAGANSETT BAY-
103 PM EDT MON AUG 31 2026
THIS AFTERNOON
S WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. PATCHY FOG
AFTER MIDNIGHT. SHOWERS LIKELY AFTER MIDNIGHT.
TUE
SE WINDS 5 TO 10 KT, BECOMING E 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. WAVES AROUND 2 FT. PATCHY FOG. SHOWERS
LIKELY IN THE MORNING. A CHANCE OF SHOWERS IN THE AFTERNOON.
TUE NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. WAVES AROUND 2 FT. A
CHANCE OF SHOWERS.
WED
E WINDS 5 TO 10 KT. WAVES AROUND 2 FT. A CHANCE OF SHOWERS
IN THE AFTERNOON.
WED NIGHT
SE WINDS 5 TO 10 KT. WAVES AROUND 2 FT. A CHANCE OF
SHOWERS IN THE EVENING, THEN SHOWERS WITH A CHANCE OF TSTMS AFTER
MIDNIGHT.
THU
SW WINDS 5 TO 10 KT. WAVES AROUND 2 FT. SHOWERS WITH A
CHANCE OF TSTMS.
THU NIGHT
W WINDS 5 TO 10 KT. WAVES AROUND 2 FT. A CHANCE OF
SHOWERS AND TSTMS.
FRI AND FRI NIGHT
NW WINDS 5 TO 10 KT. 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.
ANZ280-010600-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
103 PM EDT MON AUG 31 2026
THIS AFTERNOON
E WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 1 FOOT AT 4 SECONDS AND N 1 FOOT AT 4 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: N
1 FOOT AT 4 SECONDS AND S 1 FOOT AT 4 SECONDS.
TUE
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
2 FT AT 3 SECONDS AND SE 1 FOOT AT 8 SECONDS. A CHANCE OF
SHOWERS. PATCHY FOG IN THE MORNING.
TUE NIGHT
E WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
2 FT AT 4 SECONDS AND SE 1 FOOT AT 10 SECONDS.
WED
E WINDS AROUND 10 KT. SEAS AROUND 3 FT. WAVE DETAIL: SE
3 FT AT 11 SECONDS AND SE 2 FT AT 5 SECONDS.
WED NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 4 FT. WAVE DETAIL: SE 3 FT AT 5 SECONDS AND SE 3 FT AT
10 SECONDS. A CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS WITH
A CHANCE OF TSTMS AFTER MIDNIGHT.
THU
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. SHOWERS WITH A CHANCE OF TSTMS.
THU NIGHT
NW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. A CHANCE OF
SHOWERS.
FRI AND FRI NIGHT
NW WINDS 10 TO 15 KT, BECOMING N 15 TO
20 KT. GUSTS UP TO 25 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.
ANZ281-010600-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
103 PM EDT MON AUG 31 2026
THIS AFTERNOON
NE WINDS AROUND 5 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SW 2 FT AT 5 SECONDS AND N 1 FOOT AT 4 SECONDS.
TONIGHT
SE WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 5 SECONDS AND N 1 FOOT AT 4 SECONDS.
TUE
SE WINDS 5 TO 10 KT, BECOMING E 10 TO 15 KT IN THE
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT AT 4 SECONDS AND
SW 1 FOOT AT 5 SECONDS. A CHANCE OF SHOWERS.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 5 SECONDS AND SE 3 FT AT 12 SECONDS. A CHANCE OF SHOWERS
IN THE EVENING.
WED
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SE 4 FT AT 11 SECONDS AND E 3 FT AT 5 SECONDS.
WED NIGHT
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT AT 10 SECONDS AND
S 3 FT AT 6 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
S 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
W WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. A CHANCE OF
SHOWERS.
FRI AND FRI NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS AROUND 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.
ANZ282-010600-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
103 PM EDT MON AUG 31 2026
THIS AFTERNOON
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SW 2 FT AT 5 SECONDS AND N 1 FOOT AT 3 SECONDS.
TONIGHT
SE WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 5 SECONDS AND NE 1 FOOT AT 3 SECONDS. PATCHY FOG AFTER
MIDNIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
E WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT
AT 5 SECONDS AND SW 1 FOOT AT 4 SECONDS. PATCHY FOG. A CHANCE OF
SHOWERS.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE DETAIL: E
4 FT AT 6 SECONDS AND SE 4 FT AT 9 SECONDS. A CHANCE OF SHOWERS.
WED
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT
AT 6 SECONDS AND SW 1 FOOT AT 5 SECONDS.
WED NIGHT
SE WINDS AROUND 10 KT. SEAS AROUND 4 FT. WAVE
DETAIL: SE 4 FT AT 9 SECONDS AND E 3 FT AT 5 SECONDS. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
THU AND THU NIGHT
SW WINDS AROUND 10 KT, BECOMING W. SEAS 3 TO
4 FT. A CHANCE OF SHOWERS.
FRI
NW WINDS AROUND 10 KT. SEAS 3 TO 4 FT. A CHANCE OF
SHOWERS.
FRI NIGHT
NW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ283-010600-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
103 PM EDT MON AUG 31 2026
THIS AFTERNOON
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 2 FT AT 5 SECONDS AND NE 1 FOOT AT 3 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NE
1 FOOT AT 3 SECONDS AND SW 1 FOOT AT 5 SECONDS. PATCHY FOG AFTER
MIDNIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
SE WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT AT 5 SECONDS AND
SW 1 FOOT AT 4 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS. VSBY
1 TO 3 NM IN THE MORNING.
TUE NIGHT
E WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 4 FT. WAVE DETAIL: E 4 FT AT 7 SECONDS AND SW 1 FOOT AT
5 SECONDS. A CHANCE OF SHOWERS.
WED
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS 3 TO 5 FT. WAVE DETAIL: E 5 FT AT 6 SECONDS AND SW 1 FOOT AT
5 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
SE WINDS 10 TO 15 KT, BECOMING S AFTER MIDNIGHT.
SEAS 4 TO 5 FT. WAVE DETAIL: NE 5 FT AT 5 SECONDS AND E 4 FT AT
9 SECONDS. A CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS
LIKELY WITH A CHANCE OF TSTMS AFTER MIDNIGHT.
THU
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. SHOWERS LIKELY WITH
A CHANCE OF TSTMS.
THU NIGHT
W WINDS AROUND 10 KT. SEAS AROUND 3 FT. A CHANCE OF
SHOWERS.
FRI AND FRI NIGHT
NW WINDS 10 TO 15 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.
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