616
FZUS51 KBOX 192007
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
407 PM EDT THU MAR 19 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 25 NM
ANZ200-200900-
407 PM EDT THU MAR 19 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
HIGH PRES REMAINS OVER THE WATERS THROUGH FRI. A SERIES OF WEAK LOW
PRES SYSTEMS WILL MOVE THROUGH NEW ENGLAND OVER THE WEEKEND,
FOLLOWED BY HIGH PRES EARLY NEXT WEEK.
ANZ250-200900-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
407 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY EVENING...
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: S 3 FT AT 3 SECONDS AND SE 3 FT AT 9 SECONDS.
FRI
W WINDS 10 TO 15 KT, BECOMING S 15 TO 20 KT WITH GUSTS UP
TO 25 KT IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SW 3 FT
AT 3 SECONDS AND SE 3 FT AT 8 SECONDS.
FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 6 FT. WAVE DETAIL: S 5 FT AT 5 SECONDS AND E 4 FT AT
9 SECONDS. RAIN.
SAT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING N IN
THE AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: W 4 FT AT 5 SECONDS
AND SE 3 FT AT 9 SECONDS. A CHANCE OF RAIN IN THE MORNING.
SAT NIGHT
N WINDS 10 TO 15 KT, BECOMING NW AFTER MIDNIGHT.
SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT AT 8 SECONDS AND N 2 FT AT
4 SECONDS.
SUN
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S 2 FT
AT 3 SECONDS AND N 2 FT AT 4 SECONDS. A CHANCE OF RAIN IN THE
AFTERNOON.
SUN NIGHT
S WINDS 10 TO 15 KT, BECOMING NE 15 TO 20 KT AFTER
MIDNIGHT. SEAS 3 TO 5 FT. RAIN LIKELY.
MON
N WINDS AROUND 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. RAIN LIKELY.
MON NIGHT AND TUE
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 5 TO 7 FT.
TUE NIGHT
SW WINDS 15 TO 20 KT. SEAS 4 TO 6 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.
ANZ251-200900-
MASSACHUSETTS BAY AND IPSWICH BAY-
407 PM EDT THU MAR 19 2026
TONIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
2 FT AT 3 SECONDS AND E 2 FT AT 9 SECONDS.
FRI
W WINDS 5 TO 10 KT, BECOMING S 15 TO 20 KT WITH GUSTS UP
TO 25 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT
3 SECONDS AND E 2 FT AT 9 SECONDS.
FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 4 FT. WAVE DETAIL: S 4 FT AT 4 SECONDS AND E 3 FT AT
9 SECONDS. RAIN.
SAT
NW WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT
AT 4 SECONDS AND E 3 FT AT 9 SECONDS. A CHANCE OF RAIN IN THE
MORNING.
SAT NIGHT
N WINDS AROUND 10 KT, BECOMING W AFTER MIDNIGHT.
SEAS 2 TO 3 FT. WAVE DETAIL: N 2 FT AT 3 SECONDS AND E 2 FT AT
8 SECONDS.
SUN
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT
AT 3 SECONDS AND E 2 FT AT 8 SECONDS. A CHANCE OF RAIN IN THE
AFTERNOON.
SUN NIGHT
S WINDS 10 TO 15 KT, BECOMING NE 15 TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. RAIN LIKELY.
MON
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. RAIN LIKELY.
MON NIGHT AND TUE
NW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO
15 KT. SEAS 3 TO 5 FT.
TUE 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.
ANZ231-200900-
CAPE COD BAY-
407 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY EVENING THROUGH
LATE FRIDAY NIGHT...
TONIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
2 FT AT 9 SECONDS AND SW 1 FOOT AT 3 SECONDS.
FRI
W WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP
TO 25 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT
AT 9 SECONDS AND W 1 FOOT AT 2 SECONDS.
FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
2 TO 4 FT. WAVE DETAIL: W 3 FT AT 3 SECONDS AND SE 2 FT AT
9 SECONDS. A CHANCE OF RAIN IN THE EVENING, THEN RAIN AFTER
MIDNIGHT.
SAT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING N
5 TO 10 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT
AT 4 SECONDS AND E 2 FT AT 9 SECONDS. A CHANCE OF RAIN IN THE
MORNING.
SAT NIGHT
N WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 8 SECONDS AND N 1 FOOT AT
4 SECONDS.
SUN
S WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
2 FT AT 8 SECONDS AND S 1 FOOT AT 3 SECONDS.
SUN NIGHT
S WINDS 10 TO 15 KT, BECOMING SE WITH GUSTS UP TO
20 KT AFTER MIDNIGHT. SEAS AROUND 2 FT. A CHANCE OF RAIN IN THE
EVENING, THEN RAIN LIKELY AFTER MIDNIGHT.
MON
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. RAIN LIKELY.
MON NIGHT THROUGH TUE NIGHT
SW WINDS 15 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.
ANZ254-200900-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
407 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY EVENING...
TONIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SE
4 FT AT 9 SECONDS AND N 1 FOOT AT 5 SECONDS.
FRI
W WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP
TO 25 KT IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SE 3 FT
AT 8 SECONDS AND SW 2 FT AT 3 SECONDS.
FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 6 FT. WAVE DETAIL: S 5 FT AT 5 SECONDS AND E 3 FT AT
9 SECONDS. RAIN LIKELY AFTER MIDNIGHT.
SAT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING N IN
THE AFTERNOON. SEAS 4 TO 6 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS
AND E 3 FT AT 9 SECONDS. A CHANCE OF RAIN IN THE MORNING.
SAT NIGHT
N WINDS AROUND 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL:
SE 3 FT AT 8 SECONDS AND N 2 FT AT 4 SECONDS.
SUN
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT
AT 7 SECONDS AND NW 2 FT AT 4 SECONDS.
SUN NIGHT
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. SEAS 3 TO 5 FT. A CHANCE OF RAIN IN THE EVENING, THEN
RAIN LIKELY AFTER MIDNIGHT.
MON
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. RAIN LIKELY.
MON NIGHT AND TUE
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 5 TO 7 FT.
TUE NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
4 TO 6 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.
ANZ255-200900-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
407 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY EVENING...
TONIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
3 FT AT 9 SECONDS AND SW 1 FOOT AT 3 SECONDS.
FRI
W WINDS AROUND 10 KT, BECOMING SW WITH GUSTS UP TO 25 KT
IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: W 3 FT AT
4 SECONDS AND SE 3 FT AT 8 SECONDS.
FRI NIGHT
S WINDS 15 TO 20 KT, BECOMING SW 20 TO 25 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SW 6 FT
AT 7 SECONDS AND SE 3 FT AT 9 SECONDS. RAIN LIKELY AFTER
MIDNIGHT.
SAT
W WINDS 15 TO 20 KT, BECOMING NW 10 TO 15 KT IN THE
AFTERNOON. SEAS 4 TO 6 FT. WAVE DETAIL: SW 6 FT AT 7 SECONDS AND
E 3 FT AT 9 SECONDS. A CHANCE OF RAIN IN THE MORNING.
SAT NIGHT
NE WINDS AROUND 10 KT, BECOMING E AFTER MIDNIGHT.
SEAS 3 TO 5 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND SE 3 FT AT
8 SECONDS.
SUN
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT
AT 7 SECONDS AND SE 3 FT AT 8 SECONDS.
SUN NIGHT
SW WINDS 10 TO 15 KT, BECOMING S 15 TO 20 KT AFTER
MIDNIGHT. SEAS 3 TO 5 FT. A CHANCE OF RAIN.
MON
N WINDS AROUND 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
7 FT. A CHANCE OF RAIN.
MON NIGHT
NW WINDS 20 TO 25 KT. SEAS 5 TO 7 FT.
TUE
NW WINDS 15 TO 20 KT. SEAS 4 TO 6 FT.
TUE NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 5 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.
ANZ256-200900-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
407 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY EVENING...
TONIGHT
SW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE
4 FT AT 9 SECONDS AND SW 1 FOOT AT 3 SECONDS.
FRI
W WINDS 5 TO 10 KT, BECOMING S 15 TO 20 KT WITH GUSTS UP
TO 25 KT IN THE AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: SW 3 FT
AT 4 SECONDS AND SE 3 FT AT 8 SECONDS.
FRI NIGHT
SW WINDS 20 TO 25 KT. SEAS 4 TO 6 FT. WAVE DETAIL:
SW 6 FT AT 7 SECONDS AND SE 3 FT AT 9 SECONDS. A CHANCE OF RAIN
IN THE EVENING, THEN RAIN AFTER MIDNIGHT.
SAT
W WINDS 15 TO 20 KT, BECOMING NW 10 TO 15 KT IN THE
AFTERNOON. SEAS 5 TO 6 FT. WAVE DETAIL: S 6 FT AT 7 SECONDS AND E
3 FT AT 9 SECONDS. A CHANCE OF RAIN IN THE MORNING.
SAT NIGHT AND SUN
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. WAVE
DETAIL: SW 4 FT AT 7 SECONDS AND SE 3 FT AT 8 SECONDS.
SUN NIGHT
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND SE
3 FT AT 9 SECONDS. A CHANCE OF RAIN IN THE EVENING, THEN RAIN
LIKELY AFTER MIDNIGHT.
MON
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
7 FT. A CHANCE OF RAIN.
MON NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
5 TO 7 FT.
TUE
NW WINDS 15 TO 20 KT. SEAS 4 TO 6 FT.
TUE 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.
ANZ232-200900-
NANTUCKET SOUND-
407 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY EVENING THROUGH
LATE FRIDAY NIGHT...
TONIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S
1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 9 SECONDS.
FRI
W WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP
TO 25 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT
AT 3 SECONDS AND SE 1 FOOT AT 9 SECONDS.
FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 4 SECONDS AND SE 1 FOOT AT
9 SECONDS. A CHANCE OF RAIN IN THE EVENING, THEN RAIN LIKELY
AFTER MIDNIGHT.
SAT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING N IN
THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS
AND N 1 FOOT AT 2 SECONDS. A CHANCE OF RAIN IN THE MORNING.
SAT NIGHT
N WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: N 1 FOOT AT 3 SECONDS AND SW 1 FOOT AT
7 SECONDS.
SUN
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT
AT 4 SECONDS AND N 1 FOOT AT 4 SECONDS.
SUN NIGHT
SW WINDS 10 TO 15 KT, BECOMING S 15 TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. A CHANCE OF RAIN IN THE EVENING, THEN
RAIN LIKELY AFTER MIDNIGHT.
MON
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. RAIN LIKELY.
MON NIGHT THROUGH TUE NIGHT
SW WINDS 15 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.
ANZ233-200900-
VINEYARD SOUND-
407 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY EVENING THROUGH
LATE FRIDAY NIGHT...
TONIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S
2 FT AT 9 SECONDS AND SW 1 FOOT AT 3 SECONDS.
FRI
W WINDS 5 TO 10 KT, BECOMING S 15 TO 20 KT WITH GUSTS UP
TO 25 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT
AT 4 SECONDS AND SE 2 FT AT 8 SECONDS.
FRI NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 6 SECONDS AND SE 1 FOOT AT
9 SECONDS. A CHANCE OF RAIN IN THE EVENING, THEN RAIN LIKELY
AFTER MIDNIGHT.
SAT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING N IN
THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS
AND SE 2 FT AT 9 SECONDS. A CHANCE OF RAIN IN THE MORNING.
SAT NIGHT AND SUN
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SW 2 FT AT 7 SECONDS AND SE 2 FT AT 8 SECONDS.
SUN NIGHT
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND SE
1 FOOT AT 8 SECONDS. A CHANCE OF RAIN IN THE EVENING, THEN RAIN
LIKELY AFTER MIDNIGHT.
MON
N WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. RAIN LIKELY.
MON NIGHT AND TUE
NW WINDS 15 TO 20 KT. SEAS 2 TO 4 FT.
TUE 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.
ANZ234-200900-
BUZZARDS BAY-
407 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY EVENING THROUGH
LATE FRIDAY NIGHT...
TONIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S
2 FT AT 8 SECONDS AND SW 1 FOOT AT 3 SECONDS.
FRI
W WINDS 5 TO 10 KT, BECOMING S 15 TO 20 KT WITH GUSTS UP
TO 25 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT
AT 3 SECONDS AND SE 2 FT AT 8 SECONDS.
FRI NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 1 FOOT AT
9 SECONDS. A CHANCE OF RAIN IN THE EVENING, THEN RAIN AFTER
MIDNIGHT.
SAT
W WINDS 10 TO 15 KT, BECOMING N IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS AND SE 2 FT AT
8 SECONDS. A CHANCE OF RAIN IN THE MORNING.
SAT NIGHT AND SUN
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SW 2 FT AT 7 SECONDS AND SE 2 FT AT 8 SECONDS.
SUN NIGHT
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND
NE 1 FOOT AT 5 SECONDS. A CHANCE OF RAIN IN THE EVENING, THEN
RAIN LIKELY AFTER MIDNIGHT.
MON
N WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. RAIN LIKELY.
MON NIGHT THROUGH TUE NIGHT
SW 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.
ANZ235-200900-
RHODE ISLAND SOUND-
407 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY EVENING THROUGH
LATE FRIDAY NIGHT...
TONIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
3 FT AT 9 SECONDS AND W 1 FOOT AT 3 SECONDS.
FRI
W WINDS 5 TO 10 KT, BECOMING S 15 TO 20 KT WITH GUSTS UP
TO 25 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 4 SECONDS AND SE 3 FT AT 8 SECONDS.
FRI NIGHT
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT
AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S
5 FT AT 6 SECONDS AND SE 2 FT AT 9 SECONDS. A CHANCE OF RAIN IN
THE EVENING, THEN RAIN AFTER MIDNIGHT.
SAT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS AND SE 2 FT AT
9 SECONDS. A CHANCE OF RAIN IN THE MORNING.
SAT NIGHT AND SUN
S WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: S 4 FT AT 7 SECONDS AND SE 3 FT AT 8 SECONDS.
SUN NIGHT
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND SE
2 FT AT 8 SECONDS. A CHANCE OF RAIN IN THE EVENING, THEN RAIN
LIKELY AFTER MIDNIGHT.
MON
N WINDS 15 TO 20 KT. SEAS 3 TO 5 FT. RAIN LIKELY.
MON NIGHT
NW WINDS 15 TO 20 KT. SEAS 3 TO 5 FT.
TUE AND TUE NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING SW. 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.
ANZ237-200900-
BLOCK ISLAND SOUND-
407 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY EVENING THROUGH
LATE FRIDAY NIGHT...
TONIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
3 FT AT 9 SECONDS AND SW 1 FOOT AT 3 SECONDS.
FRI
W WINDS AROUND 5 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP
TO 25 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT
4 SECONDS AND SE 3 FT AT 8 SECONDS.
FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS. RAIN.
SAT
W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 4 FT
AT 7 SECONDS AND SE 4 FT AT 8 SECONDS. A CHANCE OF RAIN IN THE
MORNING.
SAT NIGHT AND SUN
S WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: S 3 FT AT 7 SECONDS AND SE 3 FT AT 8 SECONDS.
SUN NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND SE
2 FT AT 8 SECONDS. A CHANCE OF RAIN IN THE EVENING, THEN RAIN
LIKELY AFTER MIDNIGHT.
MON
N WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. RAIN LIKELY.
MON NIGHT
NW WINDS 15 TO 20 KT. SEAS 3 TO 5 FT.
TUE AND TUE NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING SW. 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.
ANZ230-200900-
BOSTON HARBOR-
407 PM EDT THU MAR 19 2026
TONIGHT
SW WINDS 10 TO 15 KT. WAVES AROUND 2 FT.
FRI
W WINDS 5 TO 10 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.
FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES
AROUND 2 FT. RAIN.
SAT
NW WINDS 10 TO 15 KT. WAVES AROUND 2 FT. A CHANCE OF RAIN
IN THE MORNING.
SAT NIGHT
N WINDS AROUND 10 KT, BECOMING W AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS.
SUN
S WINDS AROUND 10 KT. WAVES 1 FOOT OR LESS. A CHANCE OF
RAIN IN THE AFTERNOON.
SUN NIGHT
S WINDS 10 TO 15 KT, BECOMING E 15 TO 20 KT AFTER
MIDNIGHT. WAVES AROUND 2 FT. RAIN LIKELY.
MON
N WINDS 15 TO 20 KT. WAVES AROUND 2 FT. RAIN LIKELY.
MON NIGHT THROUGH TUE NIGHT
SW WINDS 15 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.
ANZ236-200900-
NARRAGANSETT BAY-
407 PM EDT THU MAR 19 2026
TONIGHT
SW WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
FRI
W WINDS AROUND 5 KT, BECOMING S 15 TO 20 KT WITH GUSTS UP
TO 25 KT IN THE AFTERNOON. WAVES 2 TO 3 FT.
FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. WAVES
2 TO 3 FT. RAIN.
SAT
NW WINDS AROUND 10 KT. WAVES 2 TO 3 FT. A CHANCE OF RAIN
IN THE MORNING.
SAT NIGHT AND SUN
S WINDS 5 TO 10 KT. WAVES 2 TO 3 FT.
SUN NIGHT
S WINDS AROUND 10 KT, BECOMING SE WITH GUSTS UP TO
20 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT. A CHANCE OF RAIN IN THE
EVENING, THEN RAIN LIKELY AFTER MIDNIGHT.
MON
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES 2 TO
3 FT. RAIN LIKELY.
MON NIGHT THROUGH TUE NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. WAVES 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.
FOR THE LATEST UPDATES...PLEASE VISIT OUR WEBPAGE AT
WWW.WEATHER.GOV/BOSTON
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WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.BOSTON.GOV
YOU CAN FOLLOW US ON TWITTER AT
@NWSBOSTON
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