621
FZUS51 KBOX 050203
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1003 PM EDT FRI SEP 4 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-051500-
1003 PM EDT FRI SEP 4 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
LOW PRES AND ITS ASSOCIATED COLD FRONT WILL CROSS THE WATERS INTO
TONIGHT. THIS LOW PRES SYSTEM WILL INTENSIFY AS IT LIFTS NE TOWARDS
THE CANADIAN MARITIMES FRI AND SHIFT FARTHER E BY THE HOLIDAY
WEEKEND. HIGH PRES MOVES TOWARDS THE WATERS FOR THE START OF NEXT
WEEK.
ANZ250-051500-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
1003 PM EDT FRI SEP 4 2026
OVERNIGHT
W WINDS 5 TO 10 KT, BECOMING NW WITH GUSTS UP TO
20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 7 SECONDS AND SW
1 FOOT AT 4 SECONDS.
SAT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: NE 3 FT AT 7 SECONDS AND NW 2 FT AT 3 SECONDS.
SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT. WAVE DETAIL: NE 4 FT AT 7 SECONDS AND NW 2 FT AT
4 SECONDS.
SUN
N WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: NW 5 FT AT 5 SECONDS AND NE 5 FT AT 7 SECONDS.
SUN NIGHT
NW WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: NE
4 FT AT 8 SECONDS AND SW 1 FOOT AT 5 SECONDS.
MON AND MON NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: NE 3 FT AT 8 SECONDS AND NW 1 FOOT AT 3 SECONDS.
TUE THROUGH WED
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 4 FT. SHOWERS LIKELY.
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.
ANZ251-051500-
MASSACHUSETTS BAY AND IPSWICH BAY-
1003 PM EDT FRI SEP 4 2026
OVERNIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
E 2 FT AT 7 SECONDS AND W 1 FOOT AT 4 SECONDS.
SAT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: NW 3 FT AT 4 SECONDS AND E 3 FT AT 7 SECONDS.
SAT NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND NE
3 FT AT 7 SECONDS.
SUN
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: NW 4 FT AT 4 SECONDS AND NE 4 FT AT 7 SECONDS.
SUN NIGHT
N WINDS AROUND 5 KT, BECOMING NW AFTER MIDNIGHT.
SEAS 2 TO 4 FT. WAVE DETAIL: NE 4 FT AT 8 SECONDS AND NW 1 FOOT
AT 3 SECONDS.
MON AND MON NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: NE 3 FT AT 8 SECONDS AND NW 1 FOOT AT 2 SECONDS.
TUE THROUGH WED
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 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.
ANZ231-051500-
CAPE COD BAY-
1003 PM EDT FRI SEP 4 2026
OVERNIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 1 FOOT AT 4 SECONDS AND E 1 FOOT AT 7 SECONDS.
SAT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS.
SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS.
SUN
N WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS.
SUN NIGHT THROUGH MON NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO
3 FT. WAVE DETAIL: N 3 FT AT 6 SECONDS.
TUE THROUGH WED
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: NW 1 FOOT AT 3 SECONDS AND NE 1 FOOT
AT 6 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 5 FT. SHOWERS LIKELY.
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.
ANZ254-051500-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
1003 PM EDT FRI SEP 4 2026
OVERNIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 7 SECONDS AND SW 1 FOOT AT 4 SECONDS. PATCHY FOG. VSBY
1 NM OR LESS.
SAT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: N 4 FT AT 5 SECONDS.
SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT. WAVE DETAIL: NE 5 FT AT 7 SECONDS AND SW 1 FOOT AT
6 SECONDS.
SUN
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: NE 5 FT AT 8 SECONDS AND W 1 FOOT AT
5 SECONDS.
SUN NIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: NE 5 FT AT 8 SECONDS AND
SW 1 FOOT AT 6 SECONDS.
MON AND MON NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: NE 4 FT AT 9 SECONDS AND W 1 FOOT AT
5 SECONDS.
TUE THROUGH WED
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT.
WED NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
2 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.
ANZ255-051500-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
1003 PM EDT FRI SEP 4 2026
OVERNIGHT
W WINDS 5 TO 10 KT, BECOMING NW 10 TO 15 KT. SEAS
2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND E 2 FT AT
7 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
SAT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS.
SAT NIGHT
N WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: NE
4 FT AT 6 SECONDS AND SW 1 FOOT AT 5 SECONDS.
SUN
N WINDS 15 TO 20 KT. SEAS 3 TO 5 FT. WAVE DETAIL: NE 4 FT
AT 7 SECONDS AND SW 2 FT AT 6 SECONDS.
SUN NIGHT
NW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. WAVE DETAIL:
NE 4 FT AT 8 SECONDS AND W 2 FT AT 5 SECONDS.
MON AND MON NIGHT
W WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: E 3 FT AT 9 SECONDS AND NW 2 FT AT 4 SECONDS.
TUE THROUGH WED
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT.
WED NIGHT
SW WINDS 25 TO 30 KT. SEAS 3 TO 5 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.
ANZ256-051500-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
1003 PM EDT FRI SEP 4 2026
OVERNIGHT
NW 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 E 2 FT AT
7 SECONDS.
SAT
N WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT
AT 4 SECONDS AND E 2 FT AT 8 SECONDS.
SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 5 SECONDS AND SW 1 FOOT AT
5 SECONDS.
SUN
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: NE 3 FT AT 5 SECONDS AND SW 1 FOOT AT
6 SECONDS.
SUN NIGHT THROUGH MON NIGHT
W WINDS 10 TO 15 KT. SEAS 2 TO
3 FT. WAVE DETAIL: E 3 FT AT 8 SECONDS AND NW 2 FT AT 4 SECONDS.
TUE THROUGH WED
SW WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SW 3 FT AT 5 SECONDS AND E 1 FOOT AT 10 SECONDS.
WED NIGHT
SW WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
3 TO 5 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.
ANZ232-051500-
NANTUCKET SOUND-
1003 PM EDT FRI SEP 4 2026
OVERNIGHT
W WINDS AROUND 5 KT, BECOMING NW 10 TO 15 KT. SEAS
AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 4 SECONDS AND E 1 FOOT AT
7 SECONDS.
SAT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT AT 3 SECONDS AND NE 2 FT AT
6 SECONDS.
SAT NIGHT
NE WINDS 10 TO 15 KT, BECOMING N 15 TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 4 SECONDS AND
SW 1 FOOT AT 6 SECONDS.
SUN
N WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT
AT 4 SECONDS AND W 2 FT AT 5 SECONDS.
SUN NIGHT THROUGH MON NIGHT
W WINDS 10 TO 15 KT. SEAS 2 TO
3 FT. WAVE DETAIL: NW 2 FT AT 3 SECONDS AND NE 2 FT AT 8 SECONDS.
TUE THROUGH WED
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND E 1 FOOT AT
10 SECONDS.
WED NIGHT
SW WINDS 25 TO 30 KT. SEAS AROUND 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.
ANZ233-051500-
VINEYARD SOUND-
1003 PM EDT FRI SEP 4 2026
OVERNIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS.
SAT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS AROUND 2 FT. WAVE DETAIL: NW 1 FOOT AT 4 SECONDS AND E
1 FOOT AT 7 SECONDS.
SAT NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS AROUND 2 FT. WAVE DETAIL: NE 1 FOOT AT 3 SECONDS
AND SW 1 FOOT AT 5 SECONDS.
SUN
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
2 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND W 1 FOOT AT
5 SECONDS.
SUN NIGHT THROUGH MON NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND
2 FT. WAVE DETAIL: NE 1 FOOT AT 5 SECONDS AND W 1 FOOT AT
5 SECONDS.
TUE AND TUE NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 2 FT AT 4 SECONDS AND E 1 FOOT AT 9 SECONDS.
WED
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT.
WED NIGHT
SW WINDS 25 TO 30 KT. SEAS 3 TO 5 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.
ANZ234-051500-
BUZZARDS BAY-
1003 PM EDT FRI SEP 4 2026
OVERNIGHT
NW WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: SW 1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 7 SECONDS.
SAT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: NW 1 FOOT AT 4 SECONDS AND E 1 FOOT
AT 7 SECONDS.
SAT NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS AROUND 2 FT. WAVE DETAIL: NE 1 FOOT AT 3 SECONDS
AND SW 1 FOOT AT 6 SECONDS.
SUN
N 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 W 1 FOOT AT
6 SECONDS.
SUN NIGHT THROUGH MON NIGHT
W WINDS 5 TO 10 KT. SEAS 1 FOOT OR
LESS. WAVE DETAIL: NE 1 FOOT AT 3 SECONDS AND W 1 FOOT AT
5 SECONDS.
TUE AND TUE NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT, THEN
1 FOOT OR LESS. WAVE DETAIL: W 1 FOOT AT 4 SECONDS AND E 1 FOOT
AT 8 SECONDS, BECOMING SW 1 FOOT AT 4 SECONDS AND E 1 FOOT AT
8 SECONDS.
WED
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT.
WED NIGHT
SW WINDS 25 TO 30 KT. SEAS 3 TO 5 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.
ANZ235-051500-
RHODE ISLAND SOUND-
1003 PM EDT FRI SEP 4 2026
OVERNIGHT
NW WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: W 2 FT AT 4 SECONDS AND SE 2 FT AT 8 SECONDS.
SAT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS AROUND 2 FT. WAVE DETAIL: NW 2 FT AT 3 SECONDS AND SE 2 FT
AT 8 SECONDS.
SAT NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 5 SECONDS AND S
1 FOOT AT 6 SECONDS.
SUN
N 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 SW 1 FOOT AT
6 SECONDS.
SUN NIGHT THROUGH MON NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND
2 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND NE 2 FT AT 6 SECONDS.
TUE THROUGH WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND SE 1 FOOT
AT 9 SECONDS.
WED NIGHT
SW WINDS 25 TO 30 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.
ANZ237-051500-
BLOCK ISLAND SOUND-
1003 PM EDT FRI SEP 4 2026
OVERNIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SE 2 FT AT 8 SECONDS AND W 1 FOOT AT 4 SECONDS.
SAT
N WINDS 5 TO 10 KT, BECOMING NE IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 8 SECONDS AND NW 1 FOOT AT
3 SECONDS.
SAT NIGHT
NE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL:
SE 2 FT AT 6 SECONDS.
SUN
N WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 5 SECONDS AND
S 1 FOOT AT 6 SECONDS.
SUN NIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
E 2 FT AT 6 SECONDS AND SW 1 FOOT AT 6 SECONDS.
MON AND MON NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: NW 1 FOOT AT 3 SECONDS AND E 1 FOOT AT 8 SECONDS.
TUE THROUGH WED
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT.
WED NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 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.
ANZ230-051500-
BOSTON HARBOR-
1003 PM EDT FRI SEP 4 2026
OVERNIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
SAT
N WINDS AROUND 10 KT, BECOMING NE IN THE AFTERNOON. WAVES
AROUND 2 FT.
SAT NIGHT
NE WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT AFTER
MIDNIGHT. WAVES AROUND 2 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 2 TO 3 FT.
SUN NIGHT AND MON
NW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
MON NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
TUE THROUGH WED
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES AROUND 2 FT.
WED NIGHT
SW WINDS 15 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.
ANZ236-051500-
NARRAGANSETT BAY-
1003 PM EDT FRI SEP 4 2026
OVERNIGHT
NW WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
SAT
N WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
SUN
N WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
SUN NIGHT THROUGH MON NIGHT
W WINDS 5 TO 10 KT. WAVES AROUND
2 FT.
TUE THROUGH WED
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
WAVES 2 TO 3 FT.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES
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.
ANZ280-051500-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
1003 PM EDT FRI SEP 4 2026
OVERNIGHT
W WINDS 5 TO 10 KT, BECOMING NW 10 TO 15 KT. SEAS
2 TO 3 FT. WAVE DETAIL: E 3 FT AT 7 SECONDS AND SW 1 FOOT AT
4 SECONDS.
SAT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: NW 5 FT AT 5 SECONDS.
SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. WAVE DETAIL: NE 6 FT AT 7 SECONDS AND NW 2 FT AT
5 SECONDS.
SUN
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: NE 6 FT AT 7 SECONDS AND W 3 FT AT 5 SECONDS.
SUN NIGHT
NW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: NE
5 FT AT 8 SECONDS AND NW 3 FT AT 3 SECONDS.
MON AND MON NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: NE 4 FT AT 8 SECONDS AND W 2 FT AT
5 SECONDS.
TUE THROUGH WED
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT.
WED NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS
3 TO 5 FT. SHOWERS LIKELY.
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.
ANZ281-051500-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
1003 PM EDT FRI SEP 4 2026
OVERNIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 7 SECONDS AND SW 1 FOOT AT 4 SECONDS. PATCHY FOG. VSBY
1 NM OR LESS.
SAT
N WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: NE
5 FT AT 7 SECONDS AND W 2 FT AT 5 SECONDS. PATCHY FOG IN THE
MORNING WITH VSBY 1 NM OR LESS.
SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. WAVE DETAIL: NE 6 FT AT 7 SECONDS AND SW 1 FOOT AT
6 SECONDS.
SUN
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
7 FT. WAVE DETAIL: NE 6 FT AT 8 SECONDS AND SW 1 FOOT AT
6 SECONDS.
SUN NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
5 TO 7 FT. WAVE DETAIL: NE 6 FT AT 8 SECONDS AND SW 1 FOOT AT
6 SECONDS.
MON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, DIMINISHING
TO 5 TO 10 KT IN THE AFTERNOON. SEAS 4 TO 6 FT. WAVE DETAIL: NE
5 FT AT 10 SECONDS AND SW 1 FOOT AT 6 SECONDS.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 3 TO 5 FT.
TUE THROUGH WED
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT.
WED NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS
3 TO 5 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.
ANZ282-051500-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
1003 PM EDT FRI SEP 4 2026
OVERNIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE DETAIL:
SW 2 FT AT 4 SECONDS AND E 2 FT AT 8 SECONDS. PATCHY FOG. VSBY
1 NM OR LESS.
SAT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 3 TO 4 FT. WAVE DETAIL: NE 3 FT AT 8 SECONDS AND W 2 FT AT
5 SECONDS.
SAT NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 5 FT. WAVE DETAIL: NE 4 FT AT 6 SECONDS AND W 2 FT AT
5 SECONDS.
SUN
N WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. WAVE DETAIL: NE 5 FT
AT 8 SECONDS AND W 2 FT AT 6 SECONDS.
SUN NIGHT AND MON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: NE 5 FT AT 8 SECONDS AND W 2 FT AT
5 SECONDS.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 4 TO 5 FT. WAVE DETAIL: NE
4 FT AT 10 SECONDS AND W 2 FT AT 4 SECONDS.
TUE AND TUE NIGHT
W WINDS 5 TO 10 KT. SEAS 3 TO 5 FT.
WED
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
WED NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 5 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.
ANZ283-051500-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
1003 PM EDT FRI SEP 4 2026
OVERNIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 3 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND E 2 FT AT
8 SECONDS.
SAT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS AROUND 3 FT. WAVE DETAIL: NE 3 FT AT 8 SECONDS AND NW 2 FT
AT 4 SECONDS.
SAT NIGHT
NE WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 4 FT. WAVE DETAIL: NE 4 FT AT 5 SECONDS AND SW 1 FOOT AT
5 SECONDS.
SUN
N WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 4 TO 5 FT. WAVE DETAIL: NE 4 FT AT 6 SECONDS AND
SW 1 FOOT AT 6 SECONDS.
SUN NIGHT THROUGH MON NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. SEAS 3 TO 5 FT. WAVE DETAIL: NE 4 FT AT 8 SECONDS AND W
3 FT AT 4 SECONDS.
TUE THROUGH WED
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND E 2 FT AT
10 SECONDS.
WED NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS
4 TO 6 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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