173
FZUS51 KBOX 102303
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
703 PM EDT THU SEP 10 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-111200-
703 PM EDT THU SEP 10 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
HIGH PRES THEN BUILDS BEHIND THIS FRONT FRI INTO SAT. THIS HIGH WILL
SHIFT EAST OF THE WATERS BY SUN AS A WARM FRONT CROSSES THE REGION.
A COLD FRONT QUICKLY FOLLOWS SUN NIGHT WITH HIGH PRES NOSING IN FROM
THE WEST BY MON.
ANZ250-111200-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
703 PM EDT THU SEP 10 2026
TONIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND SE 2 FT AT 10 SECONDS.
FRI
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING W
5 TO 10 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT
AT 3 SECONDS AND SE 2 FT AT 10 SECONDS.
FRI NIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 9 SECONDS AND NW 1 FOOT AT
3 SECONDS.
SAT
E WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: NW 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT
9 SECONDS.
SAT NIGHT
S WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
S 2 FT AT 3 SECONDS AND SE 1 FOOT AT 10 SECONDS.
SUN
S 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
10 SECONDS. A CHANCE OF SHOWERS.
SUN NIGHT
SW WINDS AROUND 10 KT, BECOMING W AFTER MIDNIGHT.
SEAS 2 TO 3 FT.
MON THROUGH TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO
20 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.
ANZ251-111200-
MASSACHUSETTS BAY AND IPSWICH BAY-
703 PM EDT THU SEP 10 2026
TONIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT THIS EVENING.
SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND SE 1 FOOT AT
10 SECONDS.
FRI
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NW
1 FOOT AT 3 SECONDS AND E 1 FOOT AT 10 SECONDS.
FRI NIGHT
NW WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: NW 1 FOOT AT 2 SECONDS AND E 1 FOOT AT 7 SECONDS.
SAT
NE WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. SEAS
1 FOOT OR LESS, THEN AROUND 2 FT IN THE AFTERNOON. WAVE DETAIL:
NW 1 FOOT AT 2 SECONDS AND E 1 FOOT AT 7 SECONDS, BECOMING SE
1 FOOT AT 2 SECONDS AND E 1 FOOT AT 9 SECONDS.
SAT NIGHT
S WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SE 2 FT AT 3 SECONDS AND E 1 FOOT AT 10 SECONDS.
SUN
S WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
2 FT AT 3 SECONDS AND E 1 FOOT AT 10 SECONDS. A CHANCE OF
SHOWERS.
SUN NIGHT
SW WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
AROUND 2 FT.
MON THROUGH TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO
20 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.
ANZ231-111200-
CAPE COD BAY-
703 PM EDT THU SEP 10 2026
TONIGHT
W WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: W 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT
9 SECONDS.
FRI
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NW
1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 9 SECONDS.
FRI NIGHT
SW WINDS AROUND 5 KT, BECOMING N AFTER MIDNIGHT.
SEAS 1 FOOT OR LESS. WAVE DETAIL: NW 1 FOOT AT 4 SECONDS AND E
1 FOOT AT 10 SECONDS.
SAT
E WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. SEAS
1 FOOT OR LESS, THEN AROUND 2 FT IN THE AFTERNOON. WAVE DETAIL: N
1 FOOT AT 4 SECONDS, BECOMING SE 1 FOOT AT 3 SECONDS AND NE
1 FOOT AT 4 SECONDS.
SAT NIGHT
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.
SUN
S WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
2 FT. WAVE DETAIL: S 1 FOOT AT 2 SECONDS AND E 1 FOOT AT
6 SECONDS. SHOWERS LIKELY, MAINLY IN THE MORNING.
SUN NIGHT
SW WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
AROUND 2 FT. A CHANCE OF SHOWERS IN THE EVENING.
MON THROUGH TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO
20 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.
ANZ254-111200-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
703 PM EDT THU SEP 10 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT FRIDAY
TONIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. WAVE DETAIL: W 4 FT AT 6 SECONDS AND SE 1 FOOT AT
9 SECONDS.
FRI
NW WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT IN THE
AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: NW 3 FT AT 5 SECONDS AND
SE 1 FOOT AT 10 SECONDS.
FRI NIGHT
SW WINDS AROUND 5 KT, BECOMING NW AFTER MIDNIGHT.
SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS.
SAT
E WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 6 SECONDS AND E 2 FT AT
8 SECONDS.
SAT NIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S
2 FT AT 5 SECONDS AND SE 1 FOOT AT 9 SECONDS.
SUN
S 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
10 SECONDS. SHOWERS LIKELY.
SUN NIGHT
SW WINDS 10 TO 15 KT, BECOMING W AFTER MIDNIGHT.
SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
MON THROUGH TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO
20 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.
ANZ255-111200-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
703 PM EDT THU SEP 10 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT FRIDAY
TONIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
NW AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: SW 6 FT AT
7 SECONDS AND SE 1 FOOT AT 9 SECONDS.
FRI
NW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT
AT 7 SECONDS AND SE 1 FOOT AT 10 SECONDS.
FRI NIGHT
SW WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 6 SECONDS AND SE 1 FOOT AT
10 SECONDS.
SAT
SE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT
AT 7 SECONDS AND SE 1 FOOT AT 10 SECONDS.
SAT NIGHT
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT AT 6 SECONDS AND
SE 1 FOOT AT 9 SECONDS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND SE 1 FOOT AT
10 SECONDS. SHOWERS LIKELY.
SUN NIGHT
SW WINDS AROUND 10 KT. SEAS 3 TO 4 FT. A CHANCE OF
SHOWERS IN THE EVENING.
MON THROUGH TUE NIGHT
S WINDS 15 TO 20 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.
ANZ256-111200-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
703 PM EDT THU SEP 10 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT FRIDAY
TONIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
NW AFTER MIDNIGHT. SEAS 4 TO 6 FT, SUBSIDING TO 3 TO 4 FT AFTER
MIDNIGHT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND SE 1 FOOT AT
10 SECONDS, BECOMING SW 4 FT AT 7 SECONDS AND SE 1 FOOT AT
10 SECONDS.
FRI
N WINDS AROUND 10 KT, BECOMING W IN THE AFTERNOON. SEAS
3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND SE 1 FOOT AT
10 SECONDS.
FRI NIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS AND SE 1 FOOT AT
10 SECONDS.
SAT
E WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND SE 1 FOOT AT
10 SECONDS.
SAT NIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S
2 FT AT 6 SECONDS AND SE 1 FOOT AT 10 SECONDS.
SUN
S WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT
AT 5 SECONDS AND SE 1 FOOT AT 10 SECONDS. SHOWERS LIKELY IN THE
MORNING. A CHANCE OF SHOWERS IN THE AFTERNOON.
SUN NIGHT
W WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. A CHANCE OF
SHOWERS IN THE EVENING.
MON THROUGH TUE NIGHT
S WINDS 15 TO 20 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.
ANZ232-111200-
NANTUCKET SOUND-
703 PM EDT THU SEP 10 2026
TONIGHT
W WINDS 10 TO 15 KT, BECOMING NW AFTER MIDNIGHT. GUSTS
UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W 3 FT AT 5 SECONDS AND
SE 1 FOOT AT 9 SECONDS.
FRI
N WINDS AROUND 10 KT, BECOMING W IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: NW 2 FT AT 4 SECONDS AND SE 1 FOOT AT
10 SECONDS.
FRI NIGHT
SW WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 5 SECONDS AND SE 1 FOOT AT
9 SECONDS.
SAT
E WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. SEAS
AROUND 2 FT IN THE MORNING, THEN 1 FOOT OR LESS. WAVE DETAIL: SW
1 FOOT AT 6 SECONDS AND E 1 FOOT AT 10 SECONDS, BECOMING SE
1 FOOT AT 5 SECONDS AND E 1 FOOT AT 10 SECONDS.
SAT NIGHT
S WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL:
S 2 FT AT 3 SECONDS AND SE 1 FOOT AT 9 SECONDS.
SUN
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 SE 1 FOOT AT
10 SECONDS. SHOWERS LIKELY.
SUN NIGHT
SW WINDS 10 TO 15 KT, BECOMING W AFTER MIDNIGHT.
SEAS AROUND 2 FT. A CHANCE OF SHOWERS IN THE EVENING.
MON THROUGH TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO
20 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.
ANZ233-111200-
VINEYARD SOUND-
703 PM EDT THU SEP 10 2026
TONIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
NW AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT
8 SECONDS AND SE 1 FOOT AT 10 SECONDS.
FRI
N WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: W 2 FT AT 7 SECONDS AND SE 1 FOOT AT
10 SECONDS.
FRI NIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 7 SECONDS AND SE 1 FOOT AT
10 SECONDS.
SAT
E WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 7 SECONDS AND SE 1 FOOT AT
10 SECONDS.
SAT NIGHT
S WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
S 2 FT AT 5 SECONDS AND SE 1 FOOT AT 9 SECONDS.
SUN
S 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
10 SECONDS. SHOWERS LIKELY.
SUN NIGHT
W WINDS AROUND 10 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS IN THE EVENING.
MON THROUGH TUE NIGHT
S WINDS 10 TO 15 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.
ANZ234-111200-
BUZZARDS BAY-
703 PM EDT THU SEP 10 2026
TONIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
NW 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
3 FT AT 7 SECONDS AND SE 1 FOOT AT 10 SECONDS.
FRI
N WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: W 2 FT AT 7 SECONDS AND SE 1 FOOT AT
10 SECONDS.
FRI NIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 6 SECONDS AND SE 1 FOOT AT
10 SECONDS.
SAT
E WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 7 SECONDS AND E 1 FOOT AT
9 SECONDS.
SAT NIGHT
S WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
S 1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS.
SUN
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
9 SECONDS. SHOWERS LIKELY IN THE MORNING. A CHANCE OF SHOWERS IN
THE AFTERNOON.
SUN NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS AROUND 2 FT. A CHANCE OF SHOWERS IN THE EVENING.
MON THROUGH TUE NIGHT
S WINDS 10 TO 15 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.
ANZ235-111200-
RHODE ISLAND SOUND-
703 PM EDT THU SEP 10 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
TONIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
NW AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT AT
7 SECONDS AND SE 1 FOOT AT 10 SECONDS.
FRI
N WINDS AROUND 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS AND SE 1 FOOT AT
10 SECONDS.
FRI NIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 6 SECONDS AND SE 1 FOOT AT
10 SECONDS.
SAT
E WINDS 5 TO 10 KT, BECOMING SE IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND SE 1 FOOT AT
10 SECONDS.
SAT NIGHT
S WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
S 2 FT AT 6 SECONDS AND SE 1 FOOT AT 10 SECONDS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND SE 1 FOOT AT
10 SECONDS. SHOWERS LIKELY.
SUN NIGHT
W WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. A CHANCE OF
SHOWERS IN THE EVENING.
MON THROUGH TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO
20 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.
ANZ237-111200-
BLOCK ISLAND SOUND-
703 PM EDT THU SEP 10 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
TONIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
NW 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: W 3 FT
AT 7 SECONDS AND SE 2 FT AT 9 SECONDS.
FRI
N WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. SEAS 2 TO
3 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS AND SE 1 FOOT AT
10 SECONDS.
FRI NIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 6 SECONDS AND SE 1 FOOT AT
10 SECONDS.
SAT
E WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND SE 1 FOOT AT
10 SECONDS.
SAT NIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S
2 FT AT 6 SECONDS AND SE 1 FOOT AT 10 SECONDS. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
SUN
S WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT
AT 6 SECONDS AND SE 1 FOOT AT 10 SECONDS. SHOWERS LIKELY.
SUN NIGHT
SW WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
2 TO 4 FT.
MON THROUGH TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO
20 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.
ANZ230-111200-
BOSTON HARBOR-
703 PM EDT THU SEP 10 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
TONIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
NW 5 TO 10 KT AFTER MIDNIGHT. WAVES AROUND 2 FT THIS EVENING,
THEN 1 FOOT OR LESS.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
FRI NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FOOT OR LESS.
SAT
NE WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. WAVES
1 FOOT OR LESS, THEN AROUND 2 FT IN THE AFTERNOON.
SAT NIGHT
S WINDS 5 TO 10 KT. WAVES AROUND 2 FT IN THE
EVENING, THEN 1 FOOT OR LESS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
SUN
S WINDS 5 TO 10 KT. WAVES AROUND 2 FT. SHOWERS LIKELY,
MAINLY IN THE MORNING.
SUN NIGHT
SW WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS.
MON THROUGH TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 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.
ANZ236-111200-
NARRAGANSETT BAY-
703 PM EDT THU SEP 10 2026
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 2 TO 3 FT.
FRI
N WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. WAVES
AROUND 2 FT.
FRI NIGHT
W WINDS AROUND 5 KT, BECOMING N AFTER MIDNIGHT.
WAVES AROUND 2 FT.
SAT
NE WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. WAVES
AROUND 2 FT.
SAT NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS, THEN
AROUND 2 FT AFTER MIDNIGHT.
SUN
S WINDS 10 TO 15 KT. WAVES AROUND 2 FT. SHOWERS LIKELY.
SUN NIGHT
SW WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT.
WAVES AROUND 2 FT. A CHANCE OF SHOWERS IN THE EVENING.
MON THROUGH TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 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.
ANZ280-111200-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
703 PM EDT THU SEP 10 2026
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: W 3 FT AT 5 SECONDS AND S 3 FT AT 7 SECONDS.
FRI
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING W
5 TO 10 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT
AT 4 SECONDS AND S 2 FT AT 8 SECONDS.
FRI NIGHT
W WINDS AROUND 10 KT, BECOMING N AFTER MIDNIGHT.
SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND SE 2 FT AT
7 SECONDS.
SAT
E 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
10 SECONDS.
SAT NIGHT
S 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
10 SECONDS.
SUN AND SUN NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND SE 2 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
MON THROUGH TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO
25 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.
ANZ281-111200-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
703 PM EDT THU SEP 10 2026
TONIGHT
W WINDS 10 TO 15 KT, BECOMING NW AFTER MIDNIGHT. GUSTS
UP TO 20 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SW 6 FT AT 8 SECONDS
AND SE 2 FT AT 10 SECONDS.
FRI
NW WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: NW 4 FT
AT 7 SECONDS AND SE 1 FOOT AT 10 SECONDS.
FRI NIGHT
W WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
2 TO 4 FT. WAVE DETAIL: SW 3 FT AT 6 SECONDS AND E 2 FT AT
10 SECONDS.
SAT
E WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 6 SECONDS AND SE 2 FT AT
9 SECONDS.
SAT NIGHT
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT 6 SECONDS AND SE
2 FT AT 10 SECONDS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND SE 2 FT AT 10 SECONDS.
A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY IN THE
AFTERNOON.
SUN NIGHT
S WINDS 10 TO 15 KT, BECOMING W AFTER MIDNIGHT.
GUSTS UP TO 20 KT. SEAS 3 TO 5 FT. A CHANCE OF SHOWERS.
MON THROUGH TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO
25 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.
ANZ282-111200-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
703 PM EDT THU SEP 10 2026
TONIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
NW AFTER MIDNIGHT. SEAS 5 TO 7 FT. WAVE DETAIL: SW 7 FT AT
8 SECONDS AND SE 1 FOOT AT 9 SECONDS.
FRI
N WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 4 FT
AT 7 SECONDS AND SE 1 FOOT AT 10 SECONDS.
FRI NIGHT
SW WINDS AROUND 5 KT, BECOMING NW AFTER MIDNIGHT.
SEAS AROUND 3 FT. WAVE DETAIL: SW 3 FT AT 6 SECONDS AND SE 1 FOOT
AT 10 SECONDS.
SAT
E WINDS AROUND 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT
AT 7 SECONDS AND SE 2 FT AT 9 SECONDS.
SAT NIGHT
SE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
2 FT AT 6 SECONDS AND SE 2 FT AT 9 SECONDS.
SUN
S WINDS AROUND 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S 4 FT
AT 5 SECONDS AND SE 2 FT AT 10 SECONDS. A CHANCE OF SHOWERS IN
THE MORNING. SHOWERS LIKELY IN THE AFTERNOON.
SUN NIGHT
SW WINDS AROUND 10 KT. SEAS 3 TO 5 FT. A CHANCE OF
SHOWERS.
MON THROUGH TUE NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO
20 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.
ANZ283-111200-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
703 PM EDT THU SEP 10 2026
TONIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
NW AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: SW 6 FT AT
7 SECONDS AND SE 1 FOOT AT 10 SECONDS.
FRI
NW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: W 4 FT
AT 7 SECONDS AND SE 1 FOOT AT 10 SECONDS.
FRI NIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 3 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS AND SE 1 FOOT AT
10 SECONDS.
SAT
E WINDS 5 TO 10 KT, BECOMING SE IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 6 SECONDS AND SE 1 FOOT AT
10 SECONDS.
SAT NIGHT
S WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 5 SECONDS AND SE 1 FOOT AT 10 SECONDS.
SUN
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. WAVE DETAIL: S 4 FT
AT 5 SECONDS AND SE 1 FOOT AT 10 SECONDS. SHOWERS LIKELY.
SUN NIGHT
W WINDS AROUND 10 KT. SEAS 3 TO 5 FT. A CHANCE OF
SHOWERS IN THE EVENING.
MON THROUGH TUE NIGHT
S WINDS 15 TO 20 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.
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