605
FZUS51 KBOX 090504
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
103 AM EDT WED SEP 9 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-091800-
103 AM EDT WED SEP 9 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
HIGH PRES WILL BE IN CONTROL OF OUR WATERS TODAY INTO TONIGHT. THIS
HIGH WILL THEN MOVE OFF THE COAST ON WED AHEAD OF AN APPROACHING
COLD FRONT WED NIGHT INTO THU. GUSTY SW WINDS WILL DEVELOP AHEAD OF
THIS COLD FRONT UNTIL IT CROSSES THE REGION LATER THU INTO THU
NIGHT. HIGH PRES THEN BUILDS ACROSS THE WATERS FRI INTO SAT.
ANZ250-091800-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
103 AM EDT WED SEP 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
THURSDAY EVENING...
REST OF TONIGHT
SE WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS.
WAVE DETAIL: SW 1 FOOT AT 2 SECONDS AND NE 1 FOOT AT 3 SECONDS.
WED
SE WINDS 10 TO 15 KT, BECOMING S 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
3 FT AT 4 SECONDS AND NE 2 FT AT 3 SECONDS.
WED NIGHT
S WINDS 15 TO 20 KT, BECOMING SW 20 TO 25 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS AROUND 3 FT. WAVE DETAIL: S
3 FT AT 6 SECONDS AND E 1 FOOT AT 10 SECONDS. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
THU
SW WINDS 20 TO 25 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
3 FT AT 5 SECONDS AND SE 2 FT AT 9 SECONDS. A CHANCE OF SHOWERS
IN THE MORNING.
THU NIGHT AND FRI
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 NIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: N 1 FOOT AT 4 SECONDS AND SE 1 FOOT AT
10 SECONDS.
SAT THROUGH SUN NIGHT
SW 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.
ANZ251-091800-
MASSACHUSETTS BAY AND IPSWICH BAY-
103 AM EDT WED SEP 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
THURSDAY EVENING...
REST OF TONIGHT
SE WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS.
WAVE DETAIL: NE 1 FOOT AT 2 SECONDS AND S 1 FOOT AT 2 SECONDS.
WED
SE WINDS 5 TO 10 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: SE 1 FOOT AT 3 SECONDS AND E 1 FOOT
AT 9 SECONDS, BECOMING SE 2 FT AT 4 SECONDS AND E 1 FOOT AT
9 SECONDS.
WED NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 5 SECONDS AND E 1 FOOT AT
9 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT, BECOMING W
10 TO 15 KT WITH GUSTS UP TO 20 KT IN THE AFTERNOON. SEAS 2 TO
3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND SE 1 FOOT AT
5 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT AND FRI
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND SE 1 FOOT AT
5 SECONDS.
FRI NIGHT
NW WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
1 FOOT OR LESS. WAVE DETAIL: NW 1 FOOT AT 2 SECONDS AND NE 1 FOOT
AT 5 SECONDS.
SAT THROUGH SUN NIGHT
SW 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.
ANZ231-091800-
CAPE COD BAY-
103 AM EDT WED SEP 9 2026
...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH THURSDAY
MORNING...
REST OF TONIGHT
SE WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS.
WAVE DETAIL: N 1 FOOT AT 3 SECONDS AND E 1 FOOT AT 10 SECONDS.
WED
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 25 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE
2 FT AT 3 SECONDS AND E 1 FOOT AT 10 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT. GUSTS UP TO 25 KT, INCREASING
TO 40 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 3 FT AT
4 SECONDS AND E 1 FOOT AT 4 SECONDS. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 40 KT, DIMINISHING
TO 10 TO 15 KT WITH GUSTS UP TO 25 KT IN THE AFTERNOON. SEAS 3 TO
5 FT, SUBSIDING TO 2 TO 3 FT IN THE AFTERNOON. WAVE DETAIL: SW
3 FT AT 4 SECONDS AND E 1 FOOT AT 5 SECONDS, BECOMING SW 2 FT AT
4 SECONDS AND SE 1 FOOT AT 5 SECONDS. A CHANCE OF SHOWERS IN THE
MORNING.
THU NIGHT THROUGH FRI NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND N
2 FT AT 4 SECONDS.
SAT THROUGH SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: N 1 FOOT AT 4 SECONDS AND SE
1 FOOT AT 10 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.
ANZ254-091800-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
103 AM EDT WED SEP 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
THURSDAY EVENING...
REST OF TONIGHT
SE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: N 1 FOOT AT 4 SECONDS AND W 1 FOOT AT 4 SECONDS.
WED
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND NE 1 FOOT AT
4 SECONDS.
WED NIGHT
S WINDS 15 TO 20 KT, BECOMING SW 20 TO 25 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS AROUND 3 FT. WAVE DETAIL: SW
3 FT AT 5 SECONDS AND E 1 FOOT AT 4 SECONDS.
THU
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS AROUND 3 FT. WAVE DETAIL: SW
3 FT AT 6 SECONDS AND SE 1 FOOT AT 5 SECONDS. A CHANCE OF SHOWERS
IN THE MORNING.
THU NIGHT THROUGH FRI NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP
TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 6 SECONDS AND
SE 2 FT AT 9 SECONDS.
SAT THROUGH SUN
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 AND SE 2 FT AT
10 SECONDS.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ255-091800-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
103 AM EDT WED SEP 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
THURSDAY EVENING...
REST OF TONIGHT
S WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: NE 1 FOOT AT 4 SECONDS AND SW 1 FOOT AT 4 SECONDS.
WED
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT
AT 4 SECONDS AND NE 1 FOOT AT 3 SECONDS.
WED NIGHT
S WINDS 15 TO 20 KT, BECOMING SW 20 TO 25 KT AFTER
MIDNIGHT. GUSTS UP TO 35 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 7 SECONDS AND E 1 FOOT AT 4 SECONDS.
THU
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 35 KT. SEAS AROUND 3 FT. WAVE DETAIL: SW
3 FT AT 8 SECONDS AND E 2 FT AT 9 SECONDS. A CHANCE OF SHOWERS IN
THE MORNING.
THU NIGHT
W WINDS 15 TO 20 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 8 SECONDS AND SE 1 FOOT AT 9 SECONDS. A CHANCE OF SHOWERS.
FRI AND FRI NIGHT
SE WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS AND N 1 FOOT AT
4 SECONDS.
SAT THROUGH SUN
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
SUN NIGHT
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS.
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.
ANZ256-091800-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
103 AM EDT WED SEP 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
THURSDAY EVENING...
REST OF TONIGHT
SW WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: NE 1 FOOT AT 4 SECONDS AND SW 1 FOOT AT 4 SECONDS.
WED
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT
AT 4 SECONDS AND NE 1 FOOT AT 3 SECONDS.
WED NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
AROUND 3 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS AND E 1 FOOT AT
5 SECONDS.
THU
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS AROUND 3 FT. WAVE DETAIL: SW
3 FT AT 7 SECONDS AND E 1 FOOT AT 9 SECONDS. A CHANCE OF SHOWERS
IN THE MORNING.
THU NIGHT
W WINDS 15 TO 20 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 8 SECONDS AND SE 2 FT AT 10 SECONDS. A CHANCE OF SHOWERS.
FRI AND FRI NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: W 3 FT AT 7 SECONDS AND N 1 FOOT AT
3 SECONDS.
SAT THROUGH SUN
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
SUN NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ232-091800-
NANTUCKET SOUND-
103 AM EDT WED SEP 9 2026
...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH THURSDAY
MORNING...
REST OF TONIGHT
S WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: E 1 FOOT AT 2 SECONDS AND SW 1 FOOT AT 4 SECONDS.
WED
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SE 2 FT AT 3 SECONDS AND E 1 FOOT AT
10 SECONDS.
WED NIGHT
S WINDS 15 TO 20 KT, BECOMING SW 20 TO 25 KT AFTER
MIDNIGHT. GUSTS UP TO 35 KT. SEAS AROUND 3 FT. WAVE DETAIL: SW
3 FT AT 5 SECONDS AND E 1 FOOT AT 4 SECONDS. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
THU
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 35 KT. SEAS AROUND 3 FT. WAVE DETAIL: SW
3 FT AT 5 SECONDS AND E 1 FOOT AT 5 SECONDS. A CHANCE OF SHOWERS
IN THE MORNING.
THU NIGHT THROUGH FRI NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP
TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND N
1 FOOT AT 4 SECONDS.
SAT THROUGH 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 NE 1 FOOT
AT 5 SECONDS.
SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 2 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ233-091800-
VINEYARD SOUND-
103 AM EDT WED SEP 9 2026
...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH THURSDAY
MORNING...
REST OF TONIGHT
S WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: E 1 FOOT AT 3 SECONDS AND SW 1 FOOT AT 4 SECONDS.
WED
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 25 KT IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SW
2 FT AT 4 SECONDS AND E 2 FT AT 4 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT
AFTER MIDNIGHT. GUSTS UP TO 35 KT. SEAS 3 TO 4 FT, BUILDING TO
4 TO 6 FT AFTER MIDNIGHT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND E
2 FT AT 4 SECONDS, BECOMING SW 6 FT AT 7 SECONDS AND E 1 FOOT AT
5 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 35 KT. SEAS 4 TO 6 FT, SUBSIDING TO 3 TO
4 FT IN THE AFTERNOON. WAVE DETAIL: SW 6 FT AT 7 SECONDS AND SE
2 FT AT 8 SECONDS, BECOMING SW 4 FT AT 8 SECONDS AND E 1 FOOT AT
5 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT AND FRI
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 8 SECONDS AND SE 2 FT AT
12 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 N 1 FOOT AT
2 SECONDS.
SAT THROUGH SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 2 FT.
SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 2 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ234-091800-
BUZZARDS BAY-
103 AM EDT WED SEP 9 2026
...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH THURSDAY
MORNING...
REST OF TONIGHT
S WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: E 1 FOOT AT 2 SECONDS AND SW 1 FOOT AT 4 SECONDS.
WED
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 25 KT IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: E 2 FT
AT 3 SECONDS AND SW 2 FT AT 3 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT,
INCREASING TO 20 TO 25 KT WITH GUSTS UP TO 40 KT AFTER MIDNIGHT.
SEAS 3 TO 4 FT, BUILDING TO 4 TO 6 FT AFTER MIDNIGHT. WAVE
DETAIL: SW 4 FT AT 5 SECONDS AND E 2 FT AT 4 SECONDS, BECOMING SW
6 FT AT 6 SECONDS AND SE 2 FT AT 11 SECONDS. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
THU
SW WINDS 15 TO 20 KT. GUSTS UP TO 40 KT, DECREASING TO
30 KT IN THE AFTERNOON. SEAS 4 TO 6 FT, SUBSIDING TO 3 TO 4 FT IN
THE AFTERNOON. WAVE DETAIL: SW 6 FT AT 7 SECONDS AND SE 3 FT AT
9 SECONDS, BECOMING SW 4 FT AT 7 SECONDS AND E 1 FOOT AT
5 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT AND FRI
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS AND SE 2 FT AT
11 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 N 1 FOOT AT
2 SECONDS.
SAT THROUGH SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT.
SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ235-091800-
RHODE ISLAND SOUND-
103 AM EDT WED SEP 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
THURSDAY EVENING...
REST OF TONIGHT
S WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: NE 1 FOOT AT 3 SECONDS AND SW 1 FOOT AT 4 SECONDS.
WED
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE
3 FT AT 3 SECONDS AND SE 1 FOOT AT 9 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT
AFTER MIDNIGHT. GUSTS UP TO 35 KT. SEAS AROUND 3 FT. WAVE DETAIL:
SW 3 FT AT 7 SECONDS AND SE 3 FT AT 12 SECONDS. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
THU
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS AROUND 3 FT. WAVE DETAIL: SE
3 FT AT 6 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT
W WINDS 10 TO 15 KT, BECOMING NW AFTER MIDNIGHT.
GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT
7 SECONDS AND SE 3 FT AT 9 SECONDS. A CHANCE OF SHOWERS.
FRI AND FRI NIGHT
N WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 2 FT. WAVE DETAIL: W 2 FT AT 7 SECONDS AND NE 1 FOOT
AT 3 SECONDS.
SAT THROUGH SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 2 FT.
SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ237-091800-
BLOCK ISLAND SOUND-
103 AM EDT WED SEP 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
THURSDAY EVENING...
REST OF TONIGHT
W WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: SW 1 FOOT AT 3 SECONDS AND NE 1 FOOT AT 4 SECONDS.
WED
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 25 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT
AT 4 SECONDS AND SE 1 FOOT AT 9 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND E 2 FT AT
5 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
SW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW
5 FT AT 7 SECONDS AND SE 3 FT AT 9 SECONDS. A CHANCE OF SHOWERS
IN THE MORNING.
THU NIGHT
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 3 FT AT 8 SECONDS. A CHANCE OF SHOWERS.
FRI AND FRI NIGHT
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: NW 2 FT AT 6 SECONDS AND NE 1 FOOT AT 3 SECONDS.
SAT THROUGH SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 2 FT.
SUN NIGHT
SW WINDS AROUND 10 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ230-091800-
BOSTON HARBOR-
103 AM EDT WED SEP 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
THURSDAY EVENING...
REST OF TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FOOT OR LESS.
WED
E 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 AROUND 2 FT
IN THE AFTERNOON.
WED NIGHT
SW WINDS AROUND 15 KT. GUSTS UP TO 20 KT, INCREASING
TO 30 KT AFTER MIDNIGHT. WAVES AROUND 2 FT. A CHANCE OF SHOWERS.
THU
W WINDS 10 TO 15 KT WITH GUSTS UP TO 30 KT. WAVES AROUND
2 FT. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT AND FRI
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
WAVES AROUND 2 FT.
FRI NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FOOT OR LESS.
SAT THROUGH SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 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.
ANZ236-091800-
NARRAGANSETT BAY-
103 AM EDT WED SEP 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
THURSDAY EVENING...
REST OF TONIGHT
S WINDS AROUND 5 KT. WAVES 1 FOOT OR LESS.
WED
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 25 KT IN THE AFTERNOON. WAVES 2 TO 3 FT.
WED NIGHT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. GUSTS UP TO 30 KT. WAVES AROUND 3 FT. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
THU
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 30 KT. WAVES 2 TO
3 FT. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT AND FRI
W WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT.
WAVES AROUND 2 FT.
FRI NIGHT
NW WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT.
WAVES AROUND 2 FT.
SAT THROUGH SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES AROUND 2 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT. WAVES
AROUND 2 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ280-091800-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
103 AM EDT WED SEP 9 2026
REST OF TONIGHT
SE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: W 1 FOOT AT 3 SECONDS AND NE 1 FOOT AT 4 SECONDS.
WED
SE WINDS 10 TO 15 KT, BECOMING S 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
3 FT AT 4 SECONDS AND E 1 FOOT AT 9 SECONDS.
WED NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS
AROUND 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND SE 1 FOOT AT
10 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS AROUND 3 FT. WAVE DETAIL: SW
3 FT AT 6 SECONDS AND SE 3 FT AT 8 SECONDS. A CHANCE OF SHOWERS
IN THE MORNING.
THU NIGHT AND FRI
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: W 3 FT AT 6 SECONDS AND S 3 FT AT
9 SECONDS.
FRI NIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: NW 2 FT AT 6 SECONDS AND SE 2 FT AT
10 SECONDS.
SAT THROUGH SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT.
SUN NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 4 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ281-091800-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
103 AM EDT WED SEP 9 2026
REST OF TONIGHT
SE WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS.
WAVE DETAIL: NW 1 FOOT AT 4 SECONDS AND E 1 FOOT AT 9 SECONDS.
WED
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND E 2 FT AT 9 SECONDS.
WED NIGHT
S WINDS 15 TO 20 KT, BECOMING SW 20 TO 25 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 6 SECONDS AND SE 2 FT AT 9 SECONDS.
THU
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS AROUND 3 FT. WAVE DETAIL: SW
3 FT AT 7 SECONDS AND E 2 FT AT 9 SECONDS. A CHANCE OF SHOWERS IN
THE MORNING.
THU NIGHT
W WINDS 15 TO 20 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 8 SECONDS AND E 3 FT AT 9 SECONDS. PATCHY FOG AFTER MIDNIGHT.
A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
2 FT. WAVE DETAIL: N 2 FT AT 6 SECONDS AND W 2 FT AT 7 SECONDS. A
CHANCE OF SHOWERS IN THE MORNING.
FRI NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT.
SAT THROUGH SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ282-091800-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
103 AM EDT WED SEP 9 2026
REST OF TONIGHT
SE WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS.
WAVE DETAIL: N 1 FOOT AT 4 SECONDS AND W 1 FOOT AT 4 SECONDS.
WED
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND E 2 FT AT
9 SECONDS.
WED NIGHT
S WINDS 10 TO 15 KT, BECOMING SW 20 TO 25 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 7 SECONDS AND E 2 FT AT 9 SECONDS.
THU
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS AROUND
3 FT. WAVE DETAIL: SW 3 FT AT 8 SECONDS AND SE 1 FOOT AT
5 SECONDS.
THU NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT,
BECOMING NW 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 8 SECONDS AND SE 1 FOOT
AT 9 SECONDS. PATCHY FOG AFTER MIDNIGHT. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
FRI
NW WINDS 10 TO 15 KT, BECOMING N 5 TO 10 KT IN THE
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND
SW 2 FT AT 7 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
FRI NIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 4 FT.
SAT THROUGH SUN
SE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SUN NIGHT
S WINDS AROUND 10 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ283-091800-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
103 AM EDT WED SEP 9 2026
REST OF TONIGHT
SW WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS.
WAVE DETAIL: NE 1 FOOT AT 4 SECONDS AND W 1 FOOT AT 4 SECONDS.
WED
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 25 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW
3 FT AT 4 SECONDS AND NE 1 FOOT AT 4 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT
AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS AROUND 3 FT. WAVE DETAIL:
SW 3 FT AT 7 SECONDS AND E 1 FOOT AT 4 SECONDS.
THU
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS AROUND
3 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS AND E 1 FOOT AT
9 SECONDS.
THU NIGHT
SW WINDS 15 TO 20 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 8 SECONDS AND SE 1 FOOT AT 10 SECONDS. PATCHY FOG. A CHANCE OF
SHOWERS. VSBY 1 TO 3 NM.
FRI
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, DIMINISHING
TO 5 TO 10 KT IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: W
2 FT AT 7 SECONDS AND N 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS
IN THE MORNING.
FRI NIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
2 TO 3 FT.
SAT THROUGH SUN
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SUN NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
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