997
FZUS51 KBOX 162304
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
704 PM EDT THU APR 16 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 25 NM
ANZ200-171200-
704 PM EDT THU APR 16 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
EASTERLY WINDS WITH AREAS OF LOW CLOUDS AND MIST TONIGHT IN
THE EASTERN WATERS, WITH SOUTH WINDS ON THE SOUTHERN WATERS. COLD
FRONT MOVES ACROSS THE WATERS EARLY FRI BRINGING RAIN SHOWERS, WITH
RETURNING NORTHEAST WINDS ON ALL WATERS FRI AFTN THROUGH SAT. A
STRONG COLD FRONT THEN MOVES OVER THE WATERS ON SUN.
ANZ250-171200-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
704 PM EDT THU APR 16 2026
TONIGHT
SE WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 8 SECONDS AND E 2 FT AT
8 SECONDS. PATCHY FOG. SHOWERS LIKELY WITH A CHANCE OF TSTMS THIS
EVENING, THEN A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. VSBY
1 NM OR LESS.
FRI
NW WINDS 5 TO 10 KT, BECOMING NE IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS AND SW 1 FOOT AT
3 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS IN THE
AFTERNOON. VSBY 1 NM OR LESS IN THE MORNING.
FRI NIGHT
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
N 2 FT AT 4 SECONDS AND SE 2 FT AT 8 SECONDS.
SAT
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT
AT 7 SECONDS AND N 1 FOOT AT 3 SECONDS.
SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND N 1 FOOT AT
3 SECONDS.
SUN
S WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT IN THE
AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SE 4 FT AT 7 SECONDS AND
SW 2 FT AT 4 SECONDS. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON.
SUN NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT. SHOWERS LIKELY, MAINLY IN THE EVENING.
MON AND MON NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 5 FT.
TUE AND TUE NIGHT
W WINDS 10 TO 15 KT, BECOMING S 15 TO 20 KT.
GUSTS UP TO 25 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.
ANZ251-171200-
MASSACHUSETTS BAY AND IPSWICH BAY-
704 PM EDT THU APR 16 2026
TONIGHT
SE WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT
8 SECONDS. PATCHY FOG. SHOWERS LIKELY WITH A CHANCE OF TSTMS THIS
EVENING, THEN A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. VSBY
1 NM OR LESS.
FRI
NW WINDS 5 TO 10 KT, BECOMING NE IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 3 SECONDS AND E 1 FOOT AT
6 SECONDS. A CHANCE OF SHOWERS. PATCHY FOG IN THE MORNING WITH
VSBY 1 NM OR LESS.
FRI NIGHT
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT IN THE
EVENING, THEN 1 FOOT OR LESS. WAVE DETAIL: N 1 FOOT AT 3 SECONDS
AND SE 1 FOOT AT 8 SECONDS, BECOMING N 1 FOOT AT 4 SECONDS AND SE
1 FOOT AT 8 SECONDS.
SAT
NE WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: N
2 FT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS.
SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 7 SECONDS AND N 1 FOOT AT
3 SECONDS.
SUN AND SUN NIGHT
W WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: S 3 FT AT 4 SECONDS AND W 3 FT AT 4 SECONDS. A CHANCE OF
SHOWERS IN THE MORNING, THEN SHOWERS THROUGH THE NIGHT. A CHANCE
OF SHOWERS AFTER MIDNIGHT.
MON THROUGH TUE
W WINDS 15 TO 20 KT. SEAS 2 TO 3 FT.
TUE NIGHT
S WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. A CHANCE OF
SHOWERS.
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.
ANZ231-171200-
CAPE COD BAY-
704 PM EDT THU APR 16 2026
TONIGHT
S WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SE 1 FOOT AT 3 SECONDS AND SW 1 FOOT AT
3 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
FRI
W WINDS AROUND 5 KT, BECOMING NE IN THE AFTERNOON. SEAS
1 FOOT OR LESS. WAVE DETAIL: SW 1 FOOT AT 3 SECONDS AND E 1 FOOT
AT 8 SECONDS. A CHANCE OF SHOWERS. PATCHY FOG IN THE MORNING WITH
VSBY 1 NM OR LESS.
FRI NIGHT
NE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: N 1 FOOT AT 3 SECONDS AND S 1 FOOT AT 8 SECONDS. A CHANCE
OF SHOWERS IN THE EVENING.
SAT
NE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE DETAIL: N
1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 8 SECONDS. PATCHY FOG IN THE
MORNING.
SAT NIGHT
E WINDS AROUND 5 KT, BECOMING S AFTER MIDNIGHT. SEAS
1 FOOT OR LESS, THEN AROUND 2 FT AFTER MIDNIGHT. WAVE DETAIL: NE
1 FOOT AT 3 SECONDS AND S 1 FOOT AT 7 SECONDS, BECOMING NE 1 FOOT
AT 4 SECONDS AND SE 1 FOOT AT 6 SECONDS.
SUN AND SUN NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS AND S 2 FT AT
3 SECONDS. A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS
LIKELY THROUGH THE NIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
MON THROUGH TUE 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.
ANZ254-171200-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
704 PM EDT THU APR 16 2026
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND W 1 FOOT AT
3 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
FRI
W WINDS 5 TO 10 KT, BECOMING N IN THE AFTERNOON. SEAS 2 TO
4 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND W 1 FOOT AT 3 SECONDS.
PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS IN THE AFTERNOON.
VSBY 1 NM OR LESS IN THE MORNING.
FRI NIGHT
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 7 SECONDS AND NW 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS
IN THE EVENING. PATCHY FOG AFTER MIDNIGHT.
SAT
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT
AT 5 SECONDS AND S 3 FT AT 7 SECONDS. PATCHY FOG IN THE MORNING.
SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: E 3 FT AT 7 SECONDS AND S 2 FT AT
7 SECONDS.
SUN
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND
E 4 FT AT 7 SECONDS. SHOWERS LIKELY IN THE AFTERNOON.
SUN NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT. SHOWERS LIKELY, MAINLY IN THE EVENING.
MON
NW WINDS 15 TO 20 KT. SEAS 3 TO 5 FT.
MON NIGHT THROUGH TUE NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 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.
ANZ255-171200-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
704 PM EDT THU APR 16 2026
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS AND SW 2 FT AT 3 SECONDS.
PATCHY FOG. VSBY 1 NM OR LESS.
FRI
W WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT IN THE
AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: SE 4 FT AT 7 SECONDS AND
NW 1 FOOT AT 3 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF
SHOWERS IN THE AFTERNOON. VSBY 1 NM OR LESS IN THE MORNING.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
4 FT AT 7 SECONDS AND N 1 FOOT AT 2 SECONDS. PATCHY FOG. A CHANCE
OF SHOWERS IN THE EVENING.
SAT
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT
AT 7 SECONDS AND N 2 FT AT 5 SECONDS. PATCHY FOG IN THE MORNING.
SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: E 3 FT AT 7 SECONDS AND S 2 FT AT
7 SECONDS.
SUN
S WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW
4 FT AT 4 SECONDS AND E 3 FT AT 7 SECONDS. SHOWERS LIKELY IN THE
AFTERNOON.
SUN NIGHT
NW WINDS 20 TO 25 KT. SEAS 4 TO 6 FT. SHOWERS
LIKELY, MAINLY IN THE EVENING.
MON
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT.
MON NIGHT
NW WINDS 15 TO 20 KT. SEAS 3 TO 5 FT.
TUE
NW WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
TUE NIGHT
SW WINDS 20 TO 25 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.
ANZ256-171200-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
704 PM EDT THU APR 16 2026
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. WAVE DETAIL: S 4 FT AT 6 SECONDS AND SW 2 FT AT 3 SECONDS.
PATCHY FOG. VSBY 1 NM OR LESS.
FRI
W WINDS 5 TO 10 KT, BECOMING NW 10 TO 15 KT IN THE
AFTERNOON. SEAS AROUND 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND
NW 1 FOOT AT 2 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF
SHOWERS IN THE AFTERNOON. VSBY 1 NM OR LESS IN THE MORNING.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
4 FT AT 7 SECONDS AND NE 2 FT AT 5 SECONDS. A CHANCE OF SHOWERS
IN THE EVENING.
SAT
NE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT
AT 7 SECONDS AND N 2 FT AT 4 SECONDS. PATCHY FOG IN THE MORNING.
SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND NE 1 FOOT AT
3 SECONDS.
SUN
S WINDS 15 TO 20 KT, BECOMING SW IN THE AFTERNOON. GUSTS
UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS
AND E 1 FOOT AT 7 SECONDS. A CHANCE OF SHOWERS IN THE MORNING,
THEN SHOWERS LIKELY IN THE AFTERNOON.
SUN NIGHT
NW WINDS 20 TO 25 KT. SEAS 4 TO 5 FT. SHOWERS
LIKELY, MAINLY IN THE EVENING.
MON AND MON NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 5 FT.
TUE
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT.
TUE NIGHT
SW WINDS 20 TO 25 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.
ANZ232-171200-
NANTUCKET SOUND-
704 PM EDT THU APR 16 2026
TONIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND S
2 FT AT 6 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
FRI
W WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS AND
W 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS. PATCHY FOG IN THE
MORNING WITH VSBY 1 NM OR LESS.
FRI NIGHT
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
N 1 FOOT AT 4 SECONDS AND S 1 FOOT AT 7 SECONDS. A CHANCE OF
SHOWERS IN THE EVENING. PATCHY FOG AFTER MIDNIGHT.
SAT
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: N
1 FOOT AT 4 SECONDS AND S 1 FOOT AT 7 SECONDS. PATCHY FOG IN THE
MORNING.
SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS AND N 1 FOOT AT
3 SECONDS.
SUN AND SUN NIGHT
NW WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SW 3 FT AT 5 SECONDS AND E 2 FT AT 7 SECONDS. A CHANCE OF
SHOWERS IN THE MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
MON 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.
ANZ233-171200-
VINEYARD SOUND-
704 PM EDT THU APR 16 2026
TONIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
3 FT AT 6 SECONDS AND SW 1 FOOT AT 4 SECONDS. PATCHY FOG. VSBY
1 NM OR LESS.
FRI
W WINDS 5 TO 10 KT, BECOMING N IN THE AFTERNOON. SEAS 2 TO
3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND W 1 FOOT AT 3 SECONDS.
A CHANCE OF SHOWERS. PATCHY FOG IN THE MORNING WITH VSBY 1 NM OR
LESS.
FRI NIGHT
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
3 FT AT 7 SECONDS AND NE 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS
IN THE EVENING. PATCHY FOG AFTER MIDNIGHT.
SAT
NE WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW
2 FT AT 7 SECONDS AND N 1 FOOT AT 3 SECONDS. PATCHY FOG IN THE
MORNING.
SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: NE 1 FOOT AT 3 SECONDS AND S 1 FOOT AT
6 SECONDS.
SUN AND SUN NIGHT
NW WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SW 3 FT AT 5 SECONDS AND E 1 FOOT AT 8 SECONDS. A CHANCE
OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT.
A CHANCE OF SHOWERS AFTER MIDNIGHT.
MON THROUGH TUE NIGHT
SW WINDS 20 TO 25 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.
ANZ234-171200-
BUZZARDS BAY-
704 PM EDT THU APR 16 2026
TONIGHT
SW WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 5 SECONDS AND E 1 FOOT AT 11 SECONDS. PATCHY FOG. VSBY
1 NM OR LESS.
FRI
W WINDS AROUND 5 KT, BECOMING N IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 7 SECONDS AND SE 2 FT AT
11 SECONDS. A CHANCE OF SHOWERS. PATCHY FOG IN THE MORNING WITH
VSBY 1 NM OR LESS.
FRI NIGHT
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 7 SECONDS AND NE 1 FOOT AT 2 SECONDS. A CHANCE OF
SHOWERS IN THE EVENING.
SAT
NE WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NE
1 FOOT AT 2 SECONDS AND N 1 FOOT AT 5 SECONDS. PATCHY FOG IN THE
MORNING.
SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
AROUND 2 FT IN THE EVENING, THEN 1 FOOT OR LESS. WAVE DETAIL: NE
1 FOOT AT 3 SECONDS AND S 1 FOOT AT 6 SECONDS.
SUN AND SUN NIGHT
W WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: W 3 FT AT 5 SECONDS AND S 2 FT AT 3 SECONDS. A CHANCE OF
SHOWERS IN THE MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
MON THROUGH TUE NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO
25 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.
ANZ235-171200-
RHODE ISLAND SOUND-
704 PM EDT THU APR 16 2026
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND SE 2 FT AT 12 SECONDS.
PATCHY FOG. VSBY 1 NM OR LESS.
FRI
W WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND
SE 2 FT AT 11 SECONDS. A CHANCE OF SHOWERS. PATCHY FOG IN THE
MORNING WITH VSBY 1 NM OR LESS.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 7 SECONDS AND E 1 FOOT AT 5 SECONDS. A CHANCE OF SHOWERS
IN THE EVENING.
SAT
NE WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT
AT 7 SECONDS AND N 1 FOOT AT 4 SECONDS. PATCHY FOG IN THE
MORNING.
SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND NE 1 FOOT AT
3 SECONDS.
SUN AND SUN NIGHT
NW WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: W 3 FT AT 4 SECONDS AND SE 3 FT AT 6 SECONDS. A CHANCE OF
SHOWERS IN THE MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
MON THROUGH TUE
W WINDS 15 TO 20 KT. SEAS 2 TO 4 FT.
TUE NIGHT
SW WINDS 20 TO 25 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.
ANZ237-171200-
BLOCK ISLAND SOUND-
704 PM EDT THU APR 16 2026
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND SW 2 FT AT 3 SECONDS.
PATCHY FOG. VSBY 1 NM OR LESS.
FRI
W WINDS 5 TO 10 KT, BECOMING NW IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND NW 1 FOOT AT
3 SECONDS. A CHANCE OF SHOWERS. PATCHY FOG IN THE MORNING WITH
VSBY 1 NM OR LESS.
FRI NIGHT
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 7 SECONDS AND NW 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS
IN THE EVENING.
SAT
E WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT
AT 7 SECONDS AND N 1 FOOT AT 5 SECONDS.
SAT NIGHT
SE WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND NE 1 FOOT AT
3 SECONDS.
SUN AND SUN NIGHT
NW WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SE 3 FT AT 5 SECONDS AND W 2 FT AT 3 SECONDS. A CHANCE OF
SHOWERS IN THE MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
MON THROUGH TUE NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO
25 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.
ANZ230-171200-
BOSTON HARBOR-
704 PM EDT THU APR 16 2026
TONIGHT
SE WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. WAVES
1 FOOT OR LESS. PATCHY DENSE FOG. A SLIGHT CHANCE OF SHOWERS
AFTER MIDNIGHT. VSBY 1 NM OR LESS.
FRI
NW WINDS 5 TO 10 KT, BECOMING NE IN THE AFTERNOON. WAVES
1 FOOT OR LESS. A CHANCE OF SHOWERS. PATCHY FOG IN THE MORNING
WITH VSBY 1 NM OR LESS.
FRI NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
SUN AND SUN NIGHT
W WINDS 15 TO 20 KT. WAVES AROUND 2 FT.
SHOWERS.
MON THROUGH TUE
W WINDS 15 TO 20 KT. WAVES AROUND 2 FT.
TUE NIGHT
S 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.
ANZ236-171200-
NARRAGANSETT BAY-
704 PM EDT THU APR 16 2026
TONIGHT
S WINDS 10 TO 15 KT, BECOMING SW 5 TO 10 KT AFTER
MIDNIGHT. WAVES AROUND 2 FT. PATCHY FOG. VSBY 1 NM OR LESS.
FRI
W WINDS AROUND 5 KT, BECOMING N IN THE AFTERNOON. WAVES
AROUND 2 FT. A CHANCE OF SHOWERS. PATCHY FOG IN THE MORNING WITH
VSBY 1 NM OR LESS.
FRI NIGHT
NE WINDS 5 TO 10 KT. WAVES AROUND 2 FT. A CHANCE OF
SHOWERS IN THE EVENING.
SAT
NE WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. WAVES
AROUND 2 FT.
SUN AND SUN NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES AROUND 2 FT. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY THROUGH THE NIGHT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
MON THROUGH TUE
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES AROUND 2 FT.
TUE NIGHT
SW WINDS 15 TO 20 KT. WAVES 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.
ANZ280-171200-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
704 PM EDT THU APR 16 2026
TONIGHT
S WINDS 5 TO 10 KT, BECOMING SW WITH GUSTS UP TO 20 KT
AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 8 SECONDS
AND SW 1 FOOT AT 3 SECONDS. PATCHY FOG. SHOWERS LIKELY WITH A
CHANCE OF TSTMS THIS EVENING. A SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT. VSBY 1 NM OR LESS.
FRI
NW WINDS 5 TO 10 KT, BECOMING NE 10 TO 15 KT IN THE
AFTERNOON. SEAS AROUND 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS
AND W 1 FOOT AT 3 SECONDS. PATCHY FOG IN THE MORNING WITH VSBY
1 NM OR LESS.
FRI NIGHT
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 8 SECONDS AND NE 2 FT AT 4 SECONDS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND N 1 FOOT AT
4 SECONDS.
SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
2 TO 4 FT. WAVE DETAIL: SE 4 FT AT 7 SECONDS.
SUN
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE
4 FT AT 7 SECONDS AND SW 2 FT AT 4 SECONDS. A CHANCE OF SHOWERS
IN THE MORNING, THEN SHOWERS LIKELY IN THE AFTERNOON.
SUN NIGHT
W WINDS AROUND 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. SHOWERS LIKELY, MAINLY IN THE EVENING.
MON
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT.
MON NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT.
TUE
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT.
TUE NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 5 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.
ANZ281-171200-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
704 PM EDT THU APR 16 2026
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS AND W 1 FOOT AT 3 SECONDS.
PATCHY FOG THIS EVENING, THEN PATCHY DENSE FOG AFTER MIDNIGHT.
VSBY 1 NM OR LESS.
FRI
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING N
5 TO 10 KT IN THE AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT
AT 7 SECONDS AND W 1 FOOT AT 4 SECONDS. PATCHY DENSE FOG IN THE
MORNING. A CHANCE OF SHOWERS IN THE AFTERNOON. VSBY 1 NM OR LESS
IN THE MORNING.
FRI NIGHT
NE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
4 FT AT 7 SECONDS AND NE 2 FT AT 6 SECONDS. A CHANCE OF SHOWERS
IN THE EVENING.
SAT
NE WINDS AROUND 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: NE
4 FT AT 6 SECONDS AND S 3 FT AT 7 SECONDS. PATCHY FOG IN THE
MORNING.
SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
3 TO 4 FT. WAVE DETAIL: E 4 FT AT 7 SECONDS AND S 2 FT AT
7 SECONDS.
SUN
S 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: SW
4 FT AT 5 SECONDS AND E 4 FT AT 7 SECONDS. A CHANCE OF SHOWERS IN
THE AFTERNOON.
SUN NIGHT
W WINDS AROUND 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. SHOWERS LIKELY.
MON AND MON NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 4 TO 6 FT.
TUE AND TUE NIGHT
NW WINDS 10 TO 15 KT, BECOMING SW 15 TO
20 KT. GUSTS UP TO 25 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.
ANZ282-171200-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
704 PM EDT THU APR 16 2026
TONIGHT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 4 TO 5 FT. WAVE DETAIL: S 5 FT
AT 6 SECONDS AND W 1 FOOT AT 3 SECONDS. PATCHY FOG THIS EVENING,
THEN PATCHY DENSE FOG AFTER MIDNIGHT. VSBY 1 NM OR LESS.
FRI
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING NW
5 TO 10 KT IN THE AFTERNOON. SEAS 4 TO 5 FT. WAVE DETAIL: S 5 FT
AT 7 SECONDS AND NW 1 FOOT AT 3 SECONDS. PATCHY FOG IN THE
MORNING WITH VSBY 1 NM OR LESS.
FRI NIGHT
NE WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT
AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS
AND N 1 FOOT AT 2 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM IN THE
EVENING.
SAT
NE WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE DETAIL: S 3 FT
AT 7 SECONDS AND N 2 FT AT 5 SECONDS. PATCHY FOG IN THE MORNING.
SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 6 SECONDS AND S 2 FT AT
7 SECONDS.
SUN
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 5 FT AT 4 SECONDS AND NE 4 FT AT 7 SECONDS.
SHOWERS LIKELY IN THE AFTERNOON.
SUN NIGHT
NW WINDS 20 TO 25 KT. SEAS 5 TO 7 FT. SHOWERS
LIKELY.
MON
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
7 FT.
MON NIGHT
NW WINDS 15 TO 20 KT. SEAS 4 TO 6 FT.
TUE AND TUE NIGHT
NW WINDS 10 TO 15 KT, BECOMING SW 15 TO
20 KT. GUSTS UP TO 25 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.
ANZ283-171200-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
704 PM EDT THU APR 16 2026
TONIGHT
SW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 4 TO 6 FT. WAVE DETAIL: S 5 FT
AT 6 SECONDS AND SW 2 FT AT 3 SECONDS. PATCHY FOG. VSBY 1 NM OR
LESS.
FRI
W WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT, BECOMING NW
10 TO 15 KT IN THE AFTERNOON. SEAS 4 TO 5 FT. WAVE DETAIL: S 5 FT
AT 7 SECONDS AND N 1 FOOT AT 3 SECONDS. PATCHY FOG IN THE MORNING
WITH VSBY 1 NM OR LESS.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
4 FT AT 7 SECONDS AND N 2 FT AT 4 SECONDS. A CHANCE OF SHOWERS IN
THE EVENING.
SAT
NE WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT IN THE
AFTERNOON. SEAS AROUND 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND
N 2 FT AT 4 SECONDS.
SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 4 SECONDS AND S 2 FT AT
7 SECONDS.
SUN
S WINDS 15 TO 20 KT, BECOMING SW IN THE AFTERNOON. GUSTS
UP TO 25 KT. SEAS 2 TO 4 FT, BUILDING TO 4 TO 5 FT IN THE
AFTERNOON. WAVE DETAIL: S 3 FT AT 6 SECONDS AND E 3 FT AT
7 SECONDS, BECOMING SW 4 FT AT 5 SECONDS AND E 3 FT AT 7 SECONDS.
A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY IN THE
AFTERNOON.
SUN NIGHT
NW WINDS 20 TO 25 KT. SEAS 5 TO 6 FT. SHOWERS
LIKELY, MAINLY IN THE EVENING.
MON AND MON NIGHT
NW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO
20 KT. SEAS 4 TO 6 FT.
TUE
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT.
TUE NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 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.
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