711
FZUS51 KBOX 201704
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
104 PM EDT SUN APR 20 2025
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 25 NM
ANZ200-210600-
104 PM EDT SUN APR 20 2025
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
ANOTHER HIGH PRES BUILDS OVER THE REGION FOR MON, WITH ANOTHER FRONT
PASSING OVER THE WATERS TUE. ANOTHER HIGH PRES SHOULD ARRIVE FOR
WED. HIGH PRES MAINTAINS CONTROL THROUGH THU. PERIODIC CHANCES FOR
RAINFALL FRIDAY THROUGH NEXT WEEKEND.
ANZ250-210600-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
104 PM EDT SUN APR 20 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
THIS AFTERNOON
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: W 4 FT AT 5 SECONDS AND SE 2 FT AT
8 SECONDS.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. WAVE DETAIL: N 4 FT AT 5 SECONDS AND SE 1 FOOT AT
8 SECONDS.
MON
NW WINDS 5 TO 10 KT, BECOMING SE 10 TO 15 KT IN THE
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS AND
SE 1 FOOT AT 7 SECONDS.
MON NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: S 2 FT AT 3 SECONDS AND NE 1 FOOT AT
4 SECONDS. SHOWERS LIKELY AFTER MIDNIGHT.
TUE
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SE 3 FT AT 4 SECONDS AND SE 1 FOOT AT
10 SECONDS. SHOWERS LIKELY, MAINLY IN THE MORNING.
TUE NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING NW AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 3 FT
AT 4 SECONDS AND SE 2 FT AT 9 SECONDS.
WED THROUGH THU 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.
ANZ251-210600-
MASSACHUSETTS BAY AND IPSWICH BAY-
104 PM EDT SUN APR 20 2025
THIS AFTERNOON
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 4 SECONDS AND SE 1 FOOT AT
8 SECONDS.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE
DETAIL: N 2 FT AT 4 SECONDS AND SW 1 FOOT AT 5 SECONDS.
MON
NW WINDS AROUND 5 KT, BECOMING SE 10 TO 15 KT IN THE
AFTERNOON. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT IN THE
AFTERNOON. WAVE DETAIL: N 1 FOOT AT 4 SECONDS AND S 1 FOOT AT
5 SECONDS, BECOMING NW 1 FOOT AT 2 SECONDS AND SE 1 FOOT AT
5 SECONDS.
MON NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 3 SECONDS AND
NE 1 FOOT AT 5 SECONDS. A CHANCE OF SHOWERS IN THE EVENING, THEN
SHOWERS LIKELY AFTER MIDNIGHT.
TUE
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SE 2 FT AT 5 SECONDS AND SE 1 FOOT AT
10 SECONDS. SHOWERS LIKELY, MAINLY IN THE MORNING.
TUE NIGHT
W WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 4 SECONDS AND E 1 FOOT AT 5 SECONDS.
WED THROUGH THU NIGHT
S WINDS 5 TO 10 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.
ANZ231-210600-
CAPE COD BAY-
104 PM EDT SUN APR 20 2025
THIS AFTERNOON
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 4 SECONDS AND S 2 FT AT
8 SECONDS.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE
DETAIL: N 2 FT AT 5 SECONDS AND SW 1 FOOT AT 5 SECONDS.
MON
NW WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. SEAS
1 FOOT OR LESS. WAVE DETAIL: N 1 FOOT AT 5 SECONDS AND S 1 FOOT
AT 6 SECONDS.
MON NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT AFTER MIDNIGHT.
WAVE DETAIL: S 1 FOOT AT 2 SECONDS AND N 1 FOOT AT 5 SECONDS,
BECOMING S 1 FOOT AT 3 SECONDS AND N 1 FOOT AT 5 SECONDS. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
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 N 1 FOOT AT 4 SECONDS.
SHOWERS LIKELY, MAINLY IN THE MORNING.
TUE NIGHT
SW WINDS 10 TO 15 KT, BECOMING NW 5 TO 10 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 4 SECONDS
AND E 1 FOOT AT 5 SECONDS.
WED THROUGH THU NIGHT
S WINDS 5 TO 10 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.
ANZ254-210600-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
104 PM EDT SUN APR 20 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
THIS AFTERNOON
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS AND NW 3 FT AT
5 SECONDS.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS AND N 3 FT AT 5 SECONDS.
MON
N WINDS 5 TO 10 KT, BECOMING SE IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: N 2 FT AT 6 SECONDS AND S 2 FT AT
6 SECONDS.
MON NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND N
2 FT AT 5 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
S WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND N 1 FOOT AT 5 SECONDS.
A CHANCE OF SHOWERS.
TUE NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING NW AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 4 FT
AT 5 SECONDS AND SE 2 FT AT 9 SECONDS.
WED AND WED NIGHT
W WINDS 5 TO 10 KT, BECOMING SW. SEAS 2 TO
4 FT.
THU AND THU NIGHT
S WINDS 5 TO 10 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.
ANZ255-210600-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
104 PM EDT SUN APR 20 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
THIS AFTERNOON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: SW 6 FT AT 8 SECONDS AND NW 1 FOOT
AT 4 SECONDS.
TONIGHT
NW WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW
5 FT AT 8 SECONDS AND SW 3 FT AT 7 SECONDS.
MON
N WINDS 5 TO 10 KT, BECOMING SE IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS AND N 1 FOOT AT
4 SECONDS.
MON NIGHT
S WINDS AROUND 10 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS
AND NE 1 FOOT AT 5 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND NE 1 FOOT AT
5 SECONDS. A CHANCE OF SHOWERS.
TUE NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING NW AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 4 FT
AT 6 SECONDS AND W 1 FOOT AT 3 SECONDS.
WED AND WED NIGHT
W WINDS 5 TO 10 KT, BECOMING SW. SEAS 2 TO
4 FT.
THU AND THU NIGHT
S WINDS 5 TO 10 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.
ANZ256-210600-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
104 PM EDT SUN APR 20 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
THIS AFTERNOON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 4 TO 5 FT. WAVE DETAIL: S 5 FT AT 8 SECONDS AND NW 2 FT AT
4 SECONDS.
TONIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S
4 FT AT 8 SECONDS AND S 3 FT AT 7 SECONDS.
MON
NE WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND N 1 FOOT AT
3 SECONDS.
MON NIGHT
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND SE
1 FOOT AT 9 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND SE 1 FOOT AT
9 SECONDS. A CHANCE OF SHOWERS.
TUE NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING NW AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: S 4 FT
AT 6 SECONDS AND SE 1 FOOT AT 9 SECONDS.
WED AND WED NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 4 FT.
THU AND THU NIGHT
SE WINDS 5 TO 10 KT, BECOMING S. 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.
ANZ232-210600-
NANTUCKET SOUND-
104 PM EDT SUN APR 20 2025
THIS AFTERNOON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 30 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND S 2 FT AT
8 SECONDS.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N 5 TO 10 KT AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: N
2 FT AT 4 SECONDS AND S 2 FT AT 8 SECONDS.
MON
N WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. SEAS
1 FOOT OR LESS. WAVE DETAIL: N 1 FOOT AT 3 SECONDS AND S 1 FOOT
AT 7 SECONDS.
MON NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT AFTER MIDNIGHT.
WAVE DETAIL: S 1 FOOT AT 3 SECONDS AND N 1 FOOT AT 4 SECONDS,
BECOMING S 2 FT AT 3 SECONDS AND NE 1 FOOT AT 5 SECONDS. A CHANCE
OF SHOWERS AFTER MIDNIGHT.
TUE
S WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT
AT 4 SECONDS AND N 1 FOOT AT 5 SECONDS. A CHANCE OF SHOWERS.
TUE NIGHT
SW 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 2 FT AT 5 SECONDS AND E 1 FOOT AT 5 SECONDS.
WED THROUGH THU NIGHT
S WINDS 5 TO 10 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.
ANZ233-210600-
VINEYARD SOUND-
104 PM EDT SUN APR 20 2025
THIS AFTERNOON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS AND NW 2 FT AT
3 SECONDS.
TONIGHT
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 7 SECONDS AND S 2 FT AT
8 SECONDS.
MON
N WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. SEAS
1 FOOT OR LESS. WAVE DETAIL: N 1 FOOT AT 4 SECONDS AND S 1 FOOT
AT 7 SECONDS.
MON NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT AFTER MIDNIGHT.
WAVE DETAIL: S 1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 9 SECONDS,
BECOMING S 2 FT AT 4 SECONDS AND SE 1 FOOT AT 9 SECONDS. A CHANCE
OF SHOWERS AFTER MIDNIGHT.
TUE
SW WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT
AT 5 SECONDS AND SE 1 FOOT AT 9 SECONDS. A CHANCE OF SHOWERS.
TUE NIGHT
SW 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 6 SECONDS AND W 1 FOOT AT 3 SECONDS.
WED THROUGH THU NIGHT
S WINDS 5 TO 10 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.
ANZ234-210600-
BUZZARDS BAY-
104 PM EDT SUN APR 20 2025
THIS AFTERNOON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 8 SECONDS AND N 2 FT AT
4 SECONDS.
TONIGHT
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
SEAS AROUND 2 FT IN THE EVENING, THEN 1 FOOT OR LESS. WAVE
DETAIL: S 2 FT AT 8 SECONDS AND N 1 FOOT AT 4 SECONDS, BECOMING N
1 FOOT AT 4 SECONDS AND S 1 FOOT AT 7 SECONDS.
MON
N WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. SEAS
1 FOOT OR LESS. WAVE DETAIL: N 1 FOOT AT 4 SECONDS AND S 1 FOOT
AT 7 SECONDS.
MON NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT AFTER MIDNIGHT.
WAVE DETAIL: S 1 FOOT AT 3 SECONDS AND NE 1 FOOT AT 5 SECONDS,
BECOMING S 2 FT AT 3 SECONDS AND NE 1 FOOT AT 5 SECONDS. A CHANCE
OF SHOWERS AFTER MIDNIGHT.
TUE
SW WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND NE 1 FOOT AT
5 SECONDS. SHOWERS LIKELY, MAINLY IN THE MORNING.
TUE 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 6 SECONDS AND W 1 FOOT AT 3 SECONDS.
WED THROUGH THU NIGHT
S WINDS 5 TO 10 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.
ANZ235-210600-
RHODE ISLAND SOUND-
104 PM EDT SUN APR 20 2025
THIS AFTERNOON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS AND NW 2 FT AT
3 SECONDS.
TONIGHT
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND S 3 FT AT
8 SECONDS.
MON
NE WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. SEAS
AROUND 2 FT IN THE MORNING, THEN 1 FOOT OR LESS. WAVE DETAIL: S
2 FT AT 7 SECONDS AND N 1 FOOT AT 3 SECONDS, BECOMING NE 1 FOOT
AT 3 SECONDS AND S 1 FOOT AT 8 SECONDS.
MON NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND SE
1 FOOT AT 9 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
SW WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND SE 1 FOOT AT
9 SECONDS. SHOWERS LIKELY, MAINLY IN THE MORNING.
TUE NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING NW AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT
AT 6 SECONDS AND W 1 FOOT AT 3 SECONDS.
WED THROUGH THU 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.
ANZ237-210600-
BLOCK ISLAND SOUND-
104 PM EDT SUN APR 20 2025
THIS AFTERNOON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS AND NW 2 FT AT
3 SECONDS.
TONIGHT
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 8 SECONDS AND NW 1 FOOT AT 3 SECONDS.
MON
NE WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. SEAS
AROUND 2 FT IN THE MORNING, THEN 1 FOOT OR LESS. WAVE DETAIL: S
2 FT AT 7 SECONDS, BECOMING S 1 FOOT AT 6 SECONDS.
MON NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND SE
1 FOOT AT 9 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND SE 1 FOOT AT
9 SECONDS. A CHANCE OF SHOWERS.
TUE NIGHT
W WINDS 10 TO 15 KT, BECOMING NW 5 TO 10 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 6 SECONDS AND W
1 FOOT AT 3 SECONDS.
WED THROUGH THU 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.
ANZ230-210600-
BOSTON HARBOR-
104 PM EDT SUN APR 20 2025
THIS AFTERNOON
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT.
WAVES AROUND 2 FT.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. WAVES AROUND 2 FT IN
THE EVENING, THEN 1 FOOT OR LESS.
MON
NW WINDS AROUND 5 KT, BECOMING SE 10 TO 15 KT IN THE
AFTERNOON. WAVES 1 FOOT OR LESS, THEN AROUND 2 FT IN THE
AFTERNOON.
MON NIGHT
S WINDS 10 TO 15 KT. WAVES AROUND 2 FT. A CHANCE OF
SHOWERS IN THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.
TUE
S WINDS 10 TO 15 KT. WAVES AROUND 2 FT. SHOWERS LIKELY,
MAINLY IN THE MORNING.
TUE NIGHT
W WINDS 10 TO 15 KT. WAVES AROUND 2 FT IN THE
EVENING, THEN 1 FOOT OR LESS.
WED THROUGH THU 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.
ANZ236-210600-
NARRAGANSETT BAY-
104 PM EDT SUN APR 20 2025
THIS AFTERNOON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 30 KT.
WAVES 2 TO 3 FT.
TONIGHT
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 2 TO 3 FT.
MON
N WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
MON NIGHT
S WINDS 10 TO 15 KT. WAVES 2 TO 3 FT. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
TUE
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES 2 TO
3 FT. A CHANCE OF SHOWERS.
TUE NIGHT
W WINDS AROUND 10 KT, BECOMING NW AFTER MIDNIGHT.
WAVES 2 TO 3 FT.
WED THROUGH THU NIGHT
S 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.
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