795
FZUS51 KBOX 121704
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
104 PM EDT SAT SEP 12 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-130600-
104 PM EDT SAT SEP 12 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
HIGH PRES WILL BE CENTERED OVER THE WATERS TODAY WILL SHIFT EAST OF
THEM TONIGHT. A WARM FRONT WILL THEN CROSS THE WATERS ON SUN. THIS
WARM FRONT WILL BE ACCOMPANIED BY HEAVY SHOWERS AND POSSIBLY A FEW
EMBEDDED THUNDERSTORMS. A COLD FRONT QUICKLY FOLLOWS SUN NIGHT WITH
HIGH PRES BUILDING ACROSS THE WATERS MON INTO TUE. THIS HIGH WILL
THEN SHIFT EAST OF THE WATERS WED INTO THU AS OUR NEXT COLD FRONT
APPROACHES FROM THE WEST.
ANZ250-130600-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
104 PM EDT SAT SEP 12 2026
THIS AFTERNOON
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 4 SECONDS AND N 1 FOOT
AT 3 SECONDS.
TONIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 4 SECONDS AND N 1 FOOT AT
3 SECONDS.
SUN
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SE 2 FT AT 4 SECONDS AND W 1 FOOT AT
3 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM, DECREASING TO
1 NM OR LESS IN THE AFTERNOON.
SUN NIGHT
S WINDS 5 TO 10 KT, BECOMING W WITH GUSTS UP TO
20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT AT
4 SECONDS AND SW 1 FOOT AT 3 SECONDS. PATCHY FOG. VSBY 1 NM OR
LESS, INCREASING TO 1 TO 3 NM AFTER MIDNIGHT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: NW 3 FT AT 4 SECONDS AND E 2 FT AT 6 SECONDS.
PATCHY FOG IN THE MORNING.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 4 FT. WAVE DETAIL: N 3 FT AT 4 SECONDS AND SE 2 FT AT
7 SECONDS.
TUE THROUGH WED 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.
ANZ251-130600-
MASSACHUSETTS BAY AND IPSWICH BAY-
104 PM EDT SAT SEP 12 2026
THIS AFTERNOON
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 2 FT. WAVE DETAIL: N 1 FOOT AT 3 SECONDS AND SE
1 FOOT AT 3 SECONDS.
TONIGHT
S WINDS AROUND 10 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT AT 3 SECONDS AND
SE 1 FOOT AT 10 SECONDS.
SUN
SE WINDS AROUND 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 4 SECONDS AND W 1 FOOT
AT 3 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM, DECREASING TO
1 NM OR LESS IN THE AFTERNOON.
SUN NIGHT
S WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 4 SECONDS AND W 1 FOOT AT
4 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS, INCREASING TO 1 TO 3 NM
AFTER MIDNIGHT.
MON AND MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT AT 3 SECONDS AND NE 2 FT AT
4 SECONDS.
TUE THROUGH WED NIGHT
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
WAVE DETAIL: E 3 FT AT 9 SECONDS AND N 2 FT AT 4 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.
ANZ231-130600-
CAPE COD BAY-
104 PM EDT SAT SEP 12 2026
THIS AFTERNOON
SE WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 2 FT. WAVE DETAIL: SE 1 FOOT AT 3 SECONDS AND NE
1 FOOT AT 3 SECONDS.
TONIGHT
S WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S
1 FOOT AT 2 SECONDS AND N 1 FOOT AT 3 SECONDS.
SUN
SE WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
2 FT. WAVE DETAIL: SE 1 FOOT AT 3 SECONDS AND NW 1 FOOT AT
3 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM, DECREASING TO
1 NM OR LESS IN THE AFTERNOON.
SUN NIGHT
SW WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
1 FOOT OR LESS, THEN AROUND 2 FT AFTER MIDNIGHT. WAVE DETAIL: SE
1 FOOT AT 2 SECONDS AND W 1 FOOT AT 4 SECONDS, BECOMING W 1 FOOT
AT 2 SECONDS AND SE 1 FOOT AT 3 SECONDS. PATCHY FOG. VSBY 1 NM OR
LESS, INCREASING TO 1 TO 3 NM AFTER MIDNIGHT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. WAVE DETAIL: NW 2 FT AT 3 SECONDS AND E 1 FOOT AT
5 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS IN THE
MORNING.
MON NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 3 FT. WAVE DETAIL: N 3 FT AT 4 SECONDS AND S 1 FOOT AT
7 SECONDS.
TUE THROUGH WED 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.
ANZ254-130600-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
104 PM EDT SAT SEP 12 2026
THIS AFTERNOON
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: N 1 FOOT AT 4 SECONDS AND S 1 FOOT AT 6 SECONDS.
TONIGHT
S WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 6 SECONDS AND N 1 FOOT AT
4 SECONDS.
SUN
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 N 1 FOOT AT 3 SECONDS.
PATCHY FOG. A CHANCE OF SHOWERS IN THE MORNING. SHOWERS IN THE
AFTERNOON. VSBY 1 TO 3 NM, DECREASING TO 1 NM OR LESS IN THE
AFTERNOON.
SUN NIGHT
SW WINDS 10 TO 15 KT, BECOMING W 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SE 3 FT
AT 5 SECONDS AND W 1 FOOT AT 4 SECONDS. PATCHY FOG. VSBY 1 NM OR
LESS, INCREASING TO 1 TO 3 NM AFTER MIDNIGHT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: N 3 FT AT 4 SECONDS AND SE 3 FT AT 6 SECONDS.
PATCHY FOG IN THE MORNING WITH VSBY 1 TO 3 NM.
MON NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 4 FT. WAVE DETAIL: N 4 FT AT 5 SECONDS AND SE 2 FT AT
6 SECONDS.
TUE THROUGH WED NIGHT
S 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.
ANZ255-130600-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
104 PM EDT SAT SEP 12 2026
THIS AFTERNOON
SE WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: S 2 FT AT 6 SECONDS AND N 1 FOOT AT 4 SECONDS.
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 5 SECONDS AND N 1 FOOT AT
4 SECONDS.
SUN
SE 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 NE 1 FOOT AT
4 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM, DECREASING TO
1 NM OR LESS IN THE AFTERNOON.
SUN NIGHT
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT AT 5 SECONDS AND W
2 FT AT 2 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS, INCREASING TO
1 TO 3 NM AFTER MIDNIGHT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 3 FT AT 6 SECONDS AND N 2 FT AT 4 SECONDS.
PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS IN THE MORNING
WITH VSBY 1 TO 3 NM.
MON NIGHT
N WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE DETAIL: N
3 FT AT 4 SECONDS AND SE 2 FT AT 6 SECONDS.
TUE THROUGH WED NIGHT
SW 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.
ANZ256-130600-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
104 PM EDT SAT SEP 12 2026
THIS AFTERNOON
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: S 2 FT AT 6 SECONDS AND NE 1 FOOT AT 3 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT, BECOMING SE 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
2 FT AT 4 SECONDS AND SE 1 FOOT AT 10 SECONDS.
SUN
SE WINDS 10 TO 15 KT, BECOMING S IN THE AFTERNOON. GUSTS
UP TO 20 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND
NE 1 FOOT AT 4 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 NM OR LESS.
SUN NIGHT
W WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE
3 FT AT 4 SECONDS AND W 2 FT AT 2 SECONDS. PATCHY FOG. VSBY 1 NM
OR LESS.
MON
NW WINDS 15 TO 20 KT, BECOMING N 10 TO 15 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: N 3 FT AT 4 SECONDS AND S
2 FT AT 6 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
MON NIGHT
N WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: N
3 FT AT 4 SECONDS AND S 2 FT AT 6 SECONDS.
TUE
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT.
TUE NIGHT THROUGH WED 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.
ANZ232-130600-
NANTUCKET SOUND-
104 PM EDT SAT SEP 12 2026
THIS AFTERNOON
SE WINDS AROUND 10 KT. SEAS 1 FOOT OR LESS.
WAVE DETAIL: E 1 FOOT AT 3 SECONDS AND N 1 FOOT AT 3 SECONDS.
TONIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: NE 1 FOOT AT 3 SECONDS AND S 1 FOOT AT
3 SECONDS.
SUN
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SE 2 FT AT 3 SECONDS AND NE 1 FOOT AT
4 SECONDS. PATCHY FOG. SHOWERS LIKELY IN THE MORNING. SHOWERS IN
THE AFTERNOON. VSBY 1 TO 3 NM, DECREASING TO 1 NM OR LESS IN THE
AFTERNOON.
SUN NIGHT
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 4 SECONDS AND
W 1 FOOT AT 3 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS, INCREASING
TO 1 TO 3 NM AFTER MIDNIGHT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: NW 2 FT AT 3 SECONDS AND SE 1 FOOT AT
5 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS IN THE
MORNING WITH VSBY 1 TO 3 NM.
MON NIGHT
N WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: N
3 FT AT 3 SECONDS AND SE 1 FOOT AT 6 SECONDS.
TUE THROUGH WED 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.
ANZ233-130600-
VINEYARD SOUND-
104 PM EDT SAT SEP 12 2026
THIS AFTERNOON
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: NE 1 FOOT AT 3 SECONDS AND S 1 FOOT AT 6 SECONDS.
TONIGHT
S WINDS AROUND 10 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: N 1 FOOT AT 3 SECONDS
AND SE 1 FOOT AT 4 SECONDS.
SUN
SE WINDS AROUND 10 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 5 SECONDS AND N 1 FOOT
AT 4 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM, DECREASING TO
1 NM OR LESS IN THE AFTERNOON.
SUN NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 6 SECONDS AND W 1 FOOT AT 3 SECONDS. PATCHY FOG. VSBY
1 NM OR LESS, INCREASING TO 1 TO 3 NM AFTER MIDNIGHT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: NE 2 FT AT 4 SECONDS AND W 2 FT AT 4 SECONDS.
A CHANCE OF SHOWERS IN THE MORNING.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 2 FT. WAVE DETAIL: N 1 FOOT AT 3 SECONDS AND S 1 FOOT AT
5 SECONDS.
TUE THROUGH WED NIGHT
SW 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.
ANZ234-130600-
BUZZARDS BAY-
104 PM EDT SAT SEP 12 2026
THIS AFTERNOON
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: NE 1 FOOT AT 3 SECONDS AND S 1 FOOT AT 6 SECONDS.
TONIGHT
S WINDS AROUND 10 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: N 1 FOOT AT 3 SECONDS
AND SE 1 FOOT AT 4 SECONDS.
SUN
SE WINDS AROUND 10 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS AROUND 2 FT. WAVE DETAIL: NE 2 FT AT 4 SECONDS AND S 1 FOOT
AT 3 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM, DECREASING TO
1 NM OR LESS IN THE AFTERNOON.
SUN NIGHT
W 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. VSBY
1 NM OR LESS, INCREASING TO 1 TO 3 NM AFTER MIDNIGHT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: NE 2 FT AT 4 SECONDS AND NW 1 FOOT AT
2 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
MON NIGHT
N WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL:
N 1 FOOT AT 3 SECONDS AND S 1 FOOT AT 5 SECONDS.
TUE THROUGH WED 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.
ANZ235-130600-
RHODE ISLAND SOUND-
104 PM EDT SAT SEP 12 2026
THIS AFTERNOON
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: S 2 FT AT 6 SECONDS AND NE 1 FOOT AT 3 SECONDS.
TONIGHT
S WINDS AROUND 10 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT AT 6 SECONDS AND
SE 1 FOOT AT 3 SECONDS.
SUN
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 5 SECONDS AND N 1 FOOT AT
4 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM, DECREASING TO
1 NM OR LESS IN THE AFTERNOON.
SUN NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
3 FT AT 5 SECONDS AND W 1 FOOT AT 3 SECONDS. PATCHY FOG. A CHANCE
OF SHOWERS AFTER MIDNIGHT. VSBY 1 NM OR LESS.
MON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: N 2 FT AT 3 SECONDS AND S 2 FT AT 6 SECONDS. A
CHANCE OF SHOWERS IN THE MORNING.
MON NIGHT
N WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: N
2 FT AT 3 SECONDS AND S 2 FT AT 6 SECONDS.
TUE THROUGH WED 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.
ANZ237-130600-
BLOCK ISLAND SOUND-
104 PM EDT SAT SEP 12 2026
THIS AFTERNOON
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: S 2 FT AT 6 SECONDS AND E 1 FOOT AT 2 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.
SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 4 SECONDS AND SE 1 FOOT
AT 10 SECONDS.
SUN
S WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT
AT 4 SECONDS AND N 1 FOOT AT 4 SECONDS. PATCHY FOG. SHOWERS WITH
A CHANCE OF TSTMS. VSBY 1 NM OR LESS.
SUN NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
3 FT AT 5 SECONDS AND W 1 FOOT AT 3 SECONDS. PATCHY FOG. A CHANCE
OF SHOWERS AFTER MIDNIGHT. VSBY 1 NM OR LESS.
MON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND NW 2 FT AT 3 SECONDS.
A CHANCE OF SHOWERS IN THE MORNING.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: N 2 FT AT 3 SECONDS AND SE 2 FT AT
9 SECONDS.
TUE THROUGH WED NIGHT
SW WINDS 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.
ANZ230-130600-
BOSTON HARBOR-
104 PM EDT SAT SEP 12 2026
THIS AFTERNOON
SE WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT.
WAVES AROUND 2 FT.
TONIGHT
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES AROUND 2 FT IN THE EVENING, THEN 1 FOOT OR LESS.
SUN
SE WINDS 5 TO 10 KT. WAVES AROUND 2 FT. PATCHY FOG.
SHOWERS. VSBY 1 TO 3 NM.
SUN NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FOOT OR LESS, THEN
AROUND 2 FT AFTER MIDNIGHT. PATCHY FOG. VSBY 1 NM OR LESS,
INCREASING TO 1 TO 3 NM AFTER MIDNIGHT.
MON AND MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES AROUND 2 FT.
TUE THROUGH WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FOOT OR
LESS.
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.
ANZ236-130600-
NARRAGANSETT BAY-
104 PM EDT SAT SEP 12 2026
THIS AFTERNOON
S WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS, THEN AROUND
2 FT AFTER MIDNIGHT.
SUN
SE WINDS 5 TO 10 KT. WAVES AROUND 2 FT. PATCHY FOG.
SHOWERS. VSBY 1 TO 3 NM, DECREASING TO 1 NM OR LESS IN THE
AFTERNOON.
SUN NIGHT
W WINDS AROUND 5 KT. WAVES AROUND 2 FT. PATCHY FOG.
A CHANCE OF SHOWERS AFTER MIDNIGHT. VSBY 1 NM OR LESS.
MON
NW WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT. WAVES AROUND
2 FT. A CHANCE OF SHOWERS IN THE MORNING.
MON NIGHT
N WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
TUE THROUGH WED NIGHT
SW 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.
ANZ280-130600-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
104 PM EDT SAT SEP 12 2026
THIS AFTERNOON
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: N 1 FOOT AT 3 SECONDS AND S 1 FOOT AT 6 SECONDS.
TONIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND N 1 FOOT AT 3 SECONDS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
3 FT. WAVE DETAIL: SE 3 FT AT 4 SECONDS AND W 1 FOOT AT
3 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS IN THE MORNING.
SHOWERS LIKELY IN THE AFTERNOON. VSBY 1 TO 3 NM.
SUN NIGHT
S WINDS 10 TO 15 KT, BECOMING W 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 2 FT
AT 4 SECONDS AND SE 1 FOOT AT 10 SECONDS. PATCHY FOG. VSBY 1 NM
OR LESS, INCREASING TO 1 TO 3 NM AFTER MIDNIGHT.
MON
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: NW 4 FT AT 4 SECONDS AND SE 4 FT AT 8 SECONDS.
PATCHY FOG IN THE MORNING.
MON NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 4 FT. WAVE DETAIL: N 4 FT AT 5 SECONDS AND SE 2 FT AT
7 SECONDS.
TUE AND TUE NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING S 5 TO 10 KT. SEAS 2 TO 4 FT.
WED AND WED NIGHT
S 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.
ANZ281-130600-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
104 PM EDT SAT SEP 12 2026
THIS AFTERNOON
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: S 2 FT AT 6 SECONDS AND N 1 FOOT AT 4 SECONDS.
TONIGHT
SE WINDS 5 TO 10 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
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND SE 2 FT AT 10 SECONDS.
PATCHY FOG. A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS IN
THE AFTERNOON. VSBY 1 TO 3 NM, DECREASING TO 1 NM OR LESS IN THE
AFTERNOON.
SUN NIGHT
SW WINDS 10 TO 15 KT, BECOMING W AFTER MIDNIGHT.
GUSTS UP TO 20 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 3 FT AT
4 SECONDS AND E 2 FT AT 4 SECONDS. PATCHY FOG. A CHANCE OF
SHOWERS IN THE EVENING. VSBY 1 NM OR LESS, INCREASING TO 1 TO
3 NM AFTER MIDNIGHT.
MON
NW WINDS 10 TO 15 KT, BECOMING N 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS AROUND 4 FT. WAVE DETAIL: N
3 FT AT 5 SECONDS AND S 3 FT AT 6 SECONDS. PATCHY FOG IN THE
MORNING WITH VSBY 1 TO 3 NM.
MON NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT. WAVE DETAIL: N 4 FT AT 5 SECONDS AND S 2 FT AT
6 SECONDS.
TUE
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT.
TUE NIGHT THROUGH WED NIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO
4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ282-130600-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
104 PM EDT SAT SEP 12 2026
THIS AFTERNOON
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: S 2 FT AT 6 SECONDS AND N 1 FOOT AT 4 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.
SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT 5 SECONDS AND SE 2 FT AT
10 SECONDS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT, BUILDING TO 4 TO 6 FT IN THE AFTERNOON. WAVE DETAIL: SE
2 FT AT 4 SECONDS AND SE 2 FT AT 10 SECONDS, BECOMING S 4 FT AT
5 SECONDS AND SE 2 FT AT 10 SECONDS. PATCHY FOG. A CHANCE OF
SHOWERS IN THE MORNING. SHOWERS IN THE AFTERNOON. VSBY 1 TO 3 NM,
DECREASING TO 1 NM OR LESS IN THE AFTERNOON.
SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING W 5 TO 10 KT AFTER MIDNIGHT. SEAS 4 TO 5 FT. WAVE
DETAIL: SW 4 FT AT 5 SECONDS AND SE 2 FT AT 9 SECONDS. PATCHY
FOG. VSBY 1 NM OR LESS, INCREASING TO 1 TO 3 NM AFTER MIDNIGHT.
MON
NW WINDS 10 TO 15 KT, BECOMING N 15 TO 20 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: N 3 FT AT 4 SECONDS AND
SW 3 FT AT 6 SECONDS. A CHANCE OF SHOWERS. PATCHY FOG IN THE
MORNING WITH VSBY 1 TO 3 NM.
MON NIGHT
N WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: N
4 FT AT 5 SECONDS AND S 2 FT AT 6 SECONDS.
TUE THROUGH WED NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO
20 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.
ANZ283-130600-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
104 PM EDT SAT SEP 12 2026
THIS AFTERNOON
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: S 2 FT AT 6 SECONDS AND N 1 FOOT AT 3 SECONDS.
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: S 2 FT AT 5 SECONDS AND SE 2 FT AT 10 SECONDS.
SUN
SE WINDS 10 TO 15 KT, BECOMING SW IN THE AFTERNOON. GUSTS
UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND
N 2 FT AT 4 SECONDS. PATCHY FOG. SHOWERS. A CHANCE OF TSTMS IN
THE AFTERNOON. VSBY 1 NM OR LESS.
SUN NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 3 TO 5 FT. WAVE DETAIL: E 3 FT AT 3 SECONDS AND SW
3 FT AT 5 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS, INCREASING TO
1 TO 3 NM AFTER MIDNIGHT.
MON
NW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: N 4 FT
AT 5 SECONDS AND S 2 FT AT 6 SECONDS. A CHANCE OF SHOWERS IN THE
MORNING.
MON NIGHT
N WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: N
4 FT AT 5 SECONDS AND SE 2 FT AT 9 SECONDS.
TUE THROUGH WED NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 4 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
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