851
FZUS51 KBOX 192304
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
704 PM EDT SAT SEP 19 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-201200-
704 PM EDT SAT SEP 19 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
LOW PRES SYSTEM BRINGS THE THREAT OF WIDESPREAD RAIN, ESPECIALLY THE
SOUTHERN WATERS TOMORROW. HIGH PRES BUILDS IN FROM THE N EARLY NEXT
WEEK WITH THE DISTANT SYSTEM OFF SHORE, THIS COULD PROVIDE A PERIOD
OF STRONG EASTERLY WIND, NEAR GALE FORCE, TUE INTO WED. THERE IS
POTENTIAL FOR A COASTAL LOW TO TRACK NORTHWARD LATE WEEK BRINGING
STRONG WINDS AND ROUGH SEAS BUT CONFIDENCE IS LOW IN THE EXACT TRACK
AND THUS IMPACTS.
ANZ250-201200-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
704 PM EDT SAT SEP 19 2026
TONIGHT
SE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
2 FT AT 5 SECONDS AND W 1 FOOT AT 4 SECONDS.
SUN
SE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT
AT 3 SECONDS AND E 2 FT AT 4 SECONDS. PATCHY FOG IN THE
AFTERNOON. SHOWERS IN THE AFTERNOON.
SUN NIGHT
SE WINDS 10 TO 15 KT, BECOMING E 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT
AT 4 SECONDS AND SE 2 FT AT 11 SECONDS. PATCHY FOG. SHOWERS. VSBY
1 TO 3 NM.
MON
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SW 4 FT AT 4 SECONDS AND NE 4 FT AT 5 SECONDS.
A CHANCE OF SHOWERS IN THE MORNING.
MON NIGHT
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS
AND SE 2 FT AT 9 SECONDS.
TUE AND TUE NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 4 TO 5 FT. WAVE DETAIL: SE 5 FT AT 8 SECONDS AND N 4 FT AT
5 SECONDS.
WED THROUGH THU
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 5 TO 8 FT.
THU NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
7 TO 8 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.
ANZ251-201200-
MASSACHUSETTS BAY AND IPSWICH BAY-
704 PM EDT SAT SEP 19 2026
TONIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NE
2 FT AT 5 SECONDS AND SW 1 FOOT AT 5 SECONDS.
SUN
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
2 FT AT 4 SECONDS AND E 1 FOOT AT 8 SECONDS. PATCHY FOG IN THE
AFTERNOON. SHOWERS IN THE AFTERNOON.
SUN NIGHT
SE WINDS 10 TO 15 KT, BECOMING NE 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT
AT 4 SECONDS AND S 1 FOOT AT 4 SECONDS. PATCHY FOG. SHOWERS IN
THE EVENING. A CHANCE OF SHOWERS AFTER MIDNIGHT. VSBY 1 TO 3 NM.
MON
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO
3 FT. WAVE DETAIL: NE 3 FT AT 5 SECONDS AND NW 3 FT AT 5 SECONDS.
A CHANCE OF SHOWERS IN THE MORNING.
MON NIGHT THROUGH TUE NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: E 4 FT AT 6 SECONDS AND NW
2 FT AT 4 SECONDS.
WED AND WED NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: E 6 FT AT 6 SECONDS AND E 6 FT AT
10 SECONDS.
THU
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT.
THU NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
6 TO 7 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.
ANZ231-201200-
CAPE COD BAY-
704 PM EDT SAT SEP 19 2026
TONIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: N
2 FT AT 5 SECONDS AND E 1 FOOT AT 8 SECONDS.
SUN
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
1 FOOT AT 3 SECONDS AND NW 1 FOOT AT 4 SECONDS. SHOWERS IN THE
AFTERNOON.
SUN NIGHT
SE WINDS 10 TO 15 KT, BECOMING E 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: E 2 FT
AT 12 SECONDS AND SE 1 FOOT AT 3 SECONDS. PATCHY FOG. SHOWERS.
VSBY 1 TO 3 NM.
MON
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO
4 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND NE 3 FT AT 4 SECONDS.
A CHANCE OF SHOWERS IN THE MORNING.
MON NIGHT THROUGH TUE NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS AND E
3 FT AT 8 SECONDS.
WED AND WED NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: E 5 FT AT 10 SECONDS AND NE 4 FT AT
4 SECONDS.
THU AND THU NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 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.
ANZ254-201200-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
704 PM EDT SAT SEP 19 2026
TONIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 7 SECONDS AND NW 1 FOOT AT 4 SECONDS.
SUN
SE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 2 FT
AT 6 SECONDS AND SE 2 FT AT 11 SECONDS. PATCHY FOG IN THE
AFTERNOON. A CHANCE OF SHOWERS IN THE AFTERNOON.
SUN NIGHT
SE WINDS 10 TO 15 KT, BECOMING E 5 TO 10 KT WITH
GUSTS UP TO 25 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: E
2 FT AT 4 SECONDS AND SE 2 FT AT 10 SECONDS. PATCHY FOG. SHOWERS.
VSBY 1 TO 3 NM.
MON
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
4 FT. WAVE DETAIL: NE 4 FT AT 4 SECONDS AND NW 3 FT AT 4 SECONDS.
PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS IN THE MORNING.
MON NIGHT
NE WINDS 15 TO 20 KT. SEAS 3 TO 5 FT. WAVE DETAIL:
NE 4 FT AT 5 SECONDS AND N 4 FT AT 5 SECONDS.
TUE
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: E 5 FT AT 7 SECONDS AND N 2 FT AT 5 SECONDS.
TUE NIGHT
NE WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT
AFTER MIDNIGHT. SEAS 5 TO 8 FT.
WED
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 6 TO
9 FT.
WED NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
7 TO 10 FT.
THU
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 8 TO
11 FT. A CHANCE OF SHOWERS.
THU NIGHT
NE WINDS 25 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS
7 TO 9 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.
ANZ255-201200-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
704 PM EDT SAT SEP 19 2026
TONIGHT
E WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
2 FT AT 7 SECONDS AND NW 1 FOOT AT 5 SECONDS.
SUN
SE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 2 FT
AT 4 SECONDS AND SE 1 FOOT AT 7 SECONDS. A CHANCE OF SHOWERS IN
THE AFTERNOON.
SUN NIGHT
SE WINDS 10 TO 15 KT, BECOMING E 5 TO 10 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
3 FT AT 5 SECONDS AND SE 3 FT AT 11 SECONDS. PATCHY FOG. SHOWERS.
VSBY 1 TO 3 NM.
MON
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
4 FT. WAVE DETAIL: NE 4 FT AT 4 SECONDS AND NW 4 FT AT 5 SECONDS.
PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS IN THE MORNING.
MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT. WAVE DETAIL: N 4 FT AT 6 SECONDS AND SE 2 FT AT
8 SECONDS.
TUE AND TUE NIGHT
NE WINDS 25 TO 30 KT. SEAS 5 TO 7 FT. WAVE
DETAIL: E 6 FT AT 7 SECONDS AND N 3 FT AT 5 SECONDS.
WED
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 7 TO
10 FT.
WED NIGHT
NE WINDS 25 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS
8 TO 11 FT.
THU
NE WINDS 30 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS 7 TO
10 FT. A CHANCE OF SHOWERS.
THU NIGHT
NE WINDS 30 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS
6 TO 9 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.
ANZ256-201200-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
704 PM EDT SAT SEP 19 2026
TONIGHT
E WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
2 FT AT 5 SECONDS AND SE 2 FT AT 8 SECONDS.
SUN
SE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT
AT 4 SECONDS AND SE 2 FT AT 7 SECONDS. PATCHY FOG IN THE
AFTERNOON. A CHANCE OF SHOWERS IN THE AFTERNOON.
SUN NIGHT
SE WINDS 10 TO 15 KT. GUSTS UP TO 25 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT AT 4 SECONDS AND
SE 4 FT AT 11 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM.
MON
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. WAVE DETAIL: NE 5 FT AT 5 SECONDS AND SE 3 FT AT
10 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS IN THE
MORNING.
MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. WAVE DETAIL: N 5 FT AT 5 SECONDS AND SE 2 FT AT
8 SECONDS.
TUE
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
8 FT. WAVE DETAIL: E 6 FT AT 7 SECONDS AND N 3 FT AT 4 SECONDS.
TUE NIGHT
NE WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT
AFTER MIDNIGHT. SEAS 6 TO 8 FT, BUILDING TO 7 TO 10 FT AFTER
MIDNIGHT.
WED
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT. SEAS 8 TO
11 FT.
WED NIGHT
NE WINDS 30 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS
9 TO 13 FT.
THU
NE WINDS 30 TO 35 KT WITH GUSTS UP TO 45 KT. SEAS 8 TO
11 FT. A CHANCE OF SHOWERS.
THU NIGHT
NE WINDS 30 TO 35 KT WITH GUSTS UP TO 45 KT. SEAS
7 TO 9 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.
ANZ232-201200-
NANTUCKET SOUND-
704 PM EDT SAT SEP 19 2026
TONIGHT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NW
1 FOOT AT 5 SECONDS AND NE 1 FOOT AT 5 SECONDS.
SUN
SE WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 7 SECONDS. SHOWERS IN THE
AFTERNOON.
SUN NIGHT
SE WINDS 10 TO 15 KT, BECOMING E 5 TO 10 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: E
2 FT AT 3 SECONDS AND S 1 FOOT AT 3 SECONDS. PATCHY FOG. SHOWERS.
VSBY 1 TO 3 NM.
MON
NE WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. SEAS AROUND 3 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS
AND NW 3 FT AT 5 SECONDS. PATCHY FOG IN THE MORNING. SHOWERS
LIKELY IN THE MORNING.
MON NIGHT AND TUE
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: NW 4 FT AT 7 SECONDS AND NE 3 FT AT
4 SECONDS.
TUE NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 5 FT. WAVE DETAIL: E 4 FT AT 6 SECONDS AND N 1 FOOT AT
4 SECONDS.
WED
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT.
WED NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
5 TO 7 FT.
THU
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT. SEAS 5 TO
7 FT. A CHANCE OF SHOWERS.
THU NIGHT
NE WINDS 30 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS
4 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.
ANZ233-201200-
VINEYARD SOUND-
704 PM EDT SAT SEP 19 2026
TONIGHT
E WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE DETAIL:
E 1 FOOT AT 3 SECONDS AND NW 1 FOOT AT 5 SECONDS.
SUN
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS. PATCHY FOG IN THE
AFTERNOON. SHOWERS IN THE AFTERNOON.
SUN NIGHT
SE WINDS 10 TO 15 KT, BECOMING E 5 TO 10 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
2 FT AT 8 SECONDS AND SE 2 FT AT 11 SECONDS. PATCHY FOG. SHOWERS.
VSBY 1 TO 3 NM.
MON
N WINDS 20 TO 25 KT, BECOMING NE 15 TO 20 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND
SE 2 FT AT 10 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF
SHOWERS IN THE MORNING.
MON NIGHT AND TUE
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: NE 2 FT AT 4 SECONDS AND NW 2 FT AT
5 SECONDS.
TUE NIGHT
NE WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT
AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS
AND SE 1 FOOT AT 8 SECONDS.
WED AND WED NIGHT
NE WINDS 20 TO 25 KT, INCREASING TO 25 TO
30 KT. SEAS 4 TO 6 FT.
THU AND THU NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 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.
ANZ234-201200-
BUZZARDS BAY-
704 PM EDT SAT SEP 19 2026
TONIGHT
E WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE DETAIL:
E 1 FOOT AT 2 SECONDS AND NW 1 FOOT AT 5 SECONDS.
SUN
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 8 SECONDS. PATCHY FOG IN THE
AFTERNOON. SHOWERS IN THE AFTERNOON.
SUN NIGHT
SE WINDS 10 TO 15 KT, BECOMING E 5 TO 10 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
2 FT AT 12 SECONDS AND SE 1 FOOT AT 2 SECONDS. PATCHY FOG.
SHOWERS. VSBY 1 TO 3 NM.
MON
N WINDS 20 TO 25 KT, BECOMING NE 15 TO 20 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND
SE 2 FT AT 10 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF
SHOWERS IN THE MORNING.
MON NIGHT THROUGH TUE NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND E
2 FT AT 8 SECONDS.
WED
NE WINDS 25 TO 30 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SE 6 FT
AT 10 SECONDS AND NE 4 FT AT 4 SECONDS.
WED NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 5 FT.
THU AND THU NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 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.
ANZ235-201200-
RHODE ISLAND SOUND-
704 PM EDT SAT SEP 19 2026
TONIGHT
E WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SE 2 FT AT 3 SECONDS AND NW 1 FOOT AT 5 SECONDS.
SUN
SE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT
AT 4 SECONDS AND SE 2 FT AT 8 SECONDS. PATCHY FOG IN THE
AFTERNOON. SHOWERS LIKELY IN THE AFTERNOON.
SUN NIGHT
SE WINDS 10 TO 15 KT, BECOMING E WITH GUSTS UP TO
20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT
5 SECONDS AND SE 3 FT AT 11 SECONDS. PATCHY FOG. SHOWERS. VSBY
1 TO 3 NM.
MON
N WINDS 20 TO 25 KT, BECOMING NE 15 TO 20 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS AND
SE 2 FT AT 10 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF
SHOWERS IN THE MORNING.
MON NIGHT
NE WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE DETAIL:
NE 3 FT AT 4 SECONDS AND SE 2 FT AT 8 SECONDS.
TUE AND TUE NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: E 5 FT AT 6 SECONDS.
WED
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 5 TO
7 FT.
WED NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
6 TO 9 FT.
THU
NE WINDS 30 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS 6 TO
9 FT. A CHANCE OF SHOWERS.
THU NIGHT
NE WINDS 30 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS
5 TO 7 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.
ANZ237-201200-
BLOCK ISLAND SOUND-
704 PM EDT SAT SEP 19 2026
TONIGHT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
2 FT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS.
SUN
SE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT
AT 4 SECONDS AND SE 2 FT AT 8 SECONDS. PATCHY FOG IN THE
AFTERNOON. SHOWERS LIKELY IN THE AFTERNOON.
SUN NIGHT
SE WINDS 10 TO 15 KT, BECOMING NE WITH GUSTS UP TO
20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT AT
5 SECONDS AND SE 2 FT AT 10 SECONDS. PATCHY FOG. SHOWERS. VSBY
1 TO 3 NM.
MON
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS AND SE 2 FT AT
10 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS IN THE
MORNING.
MON NIGHT
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: NE 3 FT AT 5 SECONDS
AND SE 2 FT AT 8 SECONDS.
TUE
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: E 4 FT AT 6 SECONDS AND N 1 FOOT AT 5 SECONDS.
TUE NIGHT
NE WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT
AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS 5 TO 7 FT.
WED
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 6 TO
9 FT.
WED NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
7 TO 10 FT.
THU
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT. SEAS 6 TO
9 FT. A CHANCE OF SHOWERS.
THU NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT. SEAS
5 TO 7 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.
ANZ230-201200-
BOSTON HARBOR-
704 PM EDT SAT SEP 19 2026
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
SUN
SE WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS, THEN AROUND
2 FT IN THE AFTERNOON. PATCHY FOG IN THE AFTERNOON. SHOWERS IN
THE AFTERNOON WITH VSBY 1 TO 3 NM.
SUN NIGHT
SE WINDS 10 TO 15 KT, BECOMING NE AFTER MIDNIGHT.
GUSTS UP TO 20 KT. WAVES AROUND 2 FT. PATCHY FOG. SHOWERS. VSBY
1 TO 3 NM.
MON
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES AROUND
2 FT. A CHANCE OF SHOWERS IN THE MORNING.
MON NIGHT THROUGH TUE NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. WAVES 2 TO 3 FT.
WED THROUGH THU
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
WAVES 2 TO 3 FT, EXCEPT 4 TO 6 FT AT THE OUTER HARBOR ENTRANCE.
THU NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 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.
ANZ236-201200-
NARRAGANSETT BAY-
704 PM EDT SAT SEP 19 2026
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
SUN
SE WINDS 5 TO 10 KT. WAVES AROUND 2 FT. PATCHY FOG IN THE
AFTERNOON. SHOWERS IN THE AFTERNOON.
SUN NIGHT
SE WINDS 5 TO 10 KT, BECOMING NE 10 TO 15 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT. PATCHY FOG.
SHOWERS. VSBY 1 TO 3 NM.
MON
N WINDS 15 TO 20 KT, BECOMING NE 10 TO 15 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. WAVES 2 TO 3 FT. PATCHY FOG IN THE
MORNING. A CHANCE OF SHOWERS IN THE MORNING.
MON NIGHT THROUGH TUE NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. WAVES 2 TO 3 FT.
WED AND WED NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
WAVES 2 TO 3 FT, EXCEPT 4 TO 6 FT AT THE BAY ENTRANCE.
THU AND THU NIGHT
NE WINDS 20 TO 25 KT. GUSTS UP TO 40 KT,
DECREASING TO 30 KT. WAVES AROUND 3 FT, EXCEPT 4 TO 6 FT AT THE
BAY ENTRANCE. 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.
ANZ280-201200-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
704 PM EDT SAT SEP 19 2026
TONIGHT
SE WINDS AROUND 5 KT, INCREASING TO 5 TO 10 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS AND W
1 FOOT AT 4 SECONDS.
SUN
SE WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND
SE 1 FOOT AT 11 SECONDS. SHOWERS LIKELY IN THE AFTERNOON.
SUN NIGHT
E WINDS 10 TO 15 KT. GUSTS UP TO 25 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND SE
3 FT AT 4 SECONDS. PATCHY FOG. SHOWERS LIKELY. VSBY 1 TO 3 NM.
MON
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
4 FT. WAVE DETAIL: NE 4 FT AT 5 SECONDS AND S 2 FT AT 4 SECONDS.
MON NIGHT AND TUE
NE 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 SE 2 FT AT
8 SECONDS.
TUE NIGHT
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 4 TO 6 FT. WAVE DETAIL: E
5 FT AT 7 SECONDS AND SE 2 FT AT 8 SECONDS.
WED AND WED NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT.
SEAS 5 TO 8 FT.
THU
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 7 TO
9 FT.
THU NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
8 TO 9 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.
ANZ281-201200-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
704 PM EDT SAT SEP 19 2026
TONIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: NE
3 FT AT 7 SECONDS AND W 1 FOOT AT 5 SECONDS.
SUN
SE WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 2 FT
AT 5 SECONDS AND SE 2 FT AT 11 SECONDS. A CHANCE OF SHOWERS IN
THE AFTERNOON.
SUN NIGHT
E WINDS AROUND 10 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 10 SECONDS AND
E 2 FT AT 4 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM.
MON
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: NE 4 FT AT 4 SECONDS AND N 3 FT AT 5 SECONDS.
A CHANCE OF SHOWERS. PATCHY FOG IN THE MORNING.
MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. WAVE DETAIL: E 5 FT AT 7 SECONDS AND N 3 FT AT
5 SECONDS.
TUE AND TUE NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 5 TO 8 FT. WAVE DETAIL: NE 7 FT AT 6 SECONDS AND SE 4 FT AT
8 SECONDS.
WED
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 7 TO
10 FT.
WED NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
9 TO 12 FT.
THU AND THU NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT.
SEAS 9 TO 12 FT, SUBSIDING TO 9 TO 10 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.
ANZ282-201200-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
704 PM EDT SAT SEP 19 2026
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E
3 FT AT 7 SECONDS AND SE 2 FT AT 11 SECONDS.
SUN
E WINDS 10 TO 15 KT. SEAS AROUND 3 FT. WAVE DETAIL: E 3 FT
AT 7 SECONDS AND SE 2 FT AT 11 SECONDS.
SUN NIGHT
E WINDS AROUND 10 KT. SEAS AROUND 3 FT. WAVE DETAIL:
NW 3 FT AT 5 SECONDS AND SE 3 FT AT 10 SECONDS. PATCHY FOG.
SHOWERS. VSBY 1 TO 3 NM.
MON
NE 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 SE 3 FT AT 8 SECONDS.
A CHANCE OF SHOWERS. PATCHY FOG IN THE MORNING.
MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
5 TO 7 FT. WAVE DETAIL: E 5 FT AT 6 SECONDS AND NW 2 FT AT
6 SECONDS.
TUE
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 6 TO
9 FT. WAVE DETAIL: NE 6 FT AT 7 SECONDS.
TUE NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
7 TO 10 FT.
WED
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 9 TO
12 FT.
WED NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT. SEAS
11 TO 14 FT.
THU
NE WINDS 30 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS 10 TO
14 FT. A CHANCE OF SHOWERS.
THU NIGHT
NE WINDS 30 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS
9 TO 11 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.
ANZ283-201200-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
704 PM EDT SAT SEP 19 2026
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E
3 FT AT 7 SECONDS AND NW 1 FOOT AT 4 SECONDS.
SUN
SE WINDS 10 TO 15 KT. SEAS AROUND 3 FT. WAVE DETAIL: SE
2 FT AT 5 SECONDS AND SE 2 FT AT 11 SECONDS. A CHANCE OF SHOWERS
IN THE AFTERNOON.
SUN NIGHT
SE WINDS AROUND 10 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT AT 11 SECONDS AND
SE 3 FT AT 8 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM.
MON
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. WAVE DETAIL: NE 5 FT AT 4 SECONDS AND SE 3 FT AT
10 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS IN THE
MORNING.
MON NIGHT
NE WINDS AROUND 20 KT WITH GUSTS UP TO 25 KT. SEAS
5 TO 7 FT. WAVE DETAIL: E 6 FT AT 7 SECONDS AND W 2 FT AT
6 SECONDS.
TUE
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 6 TO
9 FT, BUILDING TO 8 TO 10 FT IN THE AFTERNOON. WAVE DETAIL: E
7 FT AT 7 SECONDS AND N 3 FT AT 5 SECONDS, BECOMING NE 8 FT AT
6 SECONDS.
TUE NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
8 TO 11 FT.
WED
NE WINDS AROUND 30 KT WITH GUSTS UP TO 40 KT. SEAS 10 TO
13 FT.
WED NIGHT
NE WINDS 30 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS
12 TO 15 FT.
THU
NE WINDS AROUND 35 KT WITH GUSTS UP TO 45 KT. SEAS 11 TO
15 FT. A CHANCE OF SHOWERS.
THU NIGHT
NE WINDS AROUND 35 KT WITH GUSTS UP TO 45 KT. SEAS
9 TO 12 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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