776
FZUS51 KBOX 300204
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1004 PM EDT WED APR 29 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-301500-
1004 PM EDT WED APR 29 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
HIGH PRESSURE MOVES EAST OF THE COASTAL WATERS WITH THE APPROACH OF
AN AREA OF LOW PRESSURE FROM THE WEST. THE SYSTEM BRINGS WIDESPREAD
RAIN AND AT TIMES POOR VISIBILITY TONIGHT INTO THURSDAY, EVENTUALLY
LIFTING INTO MAINE BY FRIDAY. POTENTIALLY UNSETTLED THIS WEEKEND AS
AN AREA OF LOW PRESSURE MOVES OFF THE COAST OF THE CAROLINAS
SATURDAY AND MOVES NEAR THE BENCHMARK 40N/70W ON SUNDAY.
ANZ250-301500-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
1004 PM EDT WED APR 29 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING
OVERNIGHT
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. SEAS 5 TO
7 FT. WAVE DETAIL: E 7 FT AT 10 SECONDS AND E 1 FOOT AT
2 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS. A SLIGHT CHANCE OF
TSTMS. VSBY 1 NM OR LESS.
THU
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, DIMINISHING
TO 5 TO 10 KT IN THE AFTERNOON. SEAS 5 TO 7 FT. WAVE DETAIL: E
7 FT AT 10 SECONDS AND SE 2 FT AT 5 SECONDS. PATCHY FOG. SHOWERS.
VSBY 1 NM OR LESS.
THU NIGHT
W WINDS 5 TO 10 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: E 6 FT AT 10 SECONDS AND
NE 2 FT AT 6 SECONDS.
FRI
W 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: E 5 FT
AT 10 SECONDS AND W 2 FT AT 3 SECONDS.
FRI NIGHT
W WINDS AROUND 10 KT. SEAS 4 TO 5 FT. WAVE DETAIL: E
4 FT AT 9 SECONDS AND W 1 FOOT AT 3 SECONDS.
SAT AND SAT NIGHT
W WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE
DETAIL: SW 5 FT AT 3 SECONDS AND E 4 FT AT 9 SECONDS. A CHANCE OF
SHOWERS.
SUN
NW WINDS 5 TO 10 KT. SEAS AROUND 3 FT. A CHANCE OF
SHOWERS.
SUN NIGHT THROUGH MON NIGHT
S WINDS 15 TO 20 KT WITH 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.
ANZ251-301500-
MASSACHUSETTS BAY AND IPSWICH BAY-
1004 PM EDT WED APR 29 2026
OVERNIGHT
E WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: E
5 FT AT 10 SECONDS AND N 1 FOOT AT 3 SECONDS. PATCHY FOG. A
SLIGHT CHANCE OF SHOWERS, THEN A CHANCE OF SHOWERS. VSBY 1 NM OR
LESS.
THU
SE WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: E 5 FT
AT 10 SECONDS AND E 2 FT AT 5 SECONDS. PATCHY FOG. SHOWERS. VSBY
1 NM OR LESS, INCREASING TO 1 TO 3 NM IN THE AFTERNOON.
THU NIGHT
W WINDS 5 TO 10 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: E 5 FT AT 10 SECONDS AND
NE 2 FT AT 7 SECONDS.
FRI
W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. WAVE DETAIL: E 4 FT
AT 10 SECONDS AND W 2 FT AT 6 SECONDS.
FRI NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: E
4 FT AT 9 SECONDS AND W 1 FOOT AT 3 SECONDS.
SAT AND SAT NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: SW 4 FT AT 4 SECONDS AND E 4 FT AT 9 SECONDS. A CHANCE OF
SHOWERS.
SUN
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
SUN NIGHT AND MON
W WINDS AROUND 10 KT, BECOMING SW WITH GUSTS
UP TO 20 KT. SEAS 2 TO 3 FT.
MON NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 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.
ANZ231-301500-
CAPE COD BAY-
1004 PM EDT WED APR 29 2026
OVERNIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
2 FT AT 10 SECONDS AND N 1 FOOT AT 3 SECONDS. PATCHY FOG. A
SLIGHT CHANCE OF SHOWERS, THEN SHOWERS LIKELY WITH A SLIGHT
CHANCE OF TSTMS. VSBY 1 NM OR LESS.
THU
SE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT
AT 11 SECONDS AND SE 1 FOOT AT 2 SECONDS. PATCHY FOG. SHOWERS.
VSBY 1 NM OR LESS.
THU NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
2 FT AT 11 SECONDS AND SW 1 FOOT AT 2 SECONDS.
FRI
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NW 1 FOOT
AT 3 SECONDS AND NE 1 FOOT AT 5 SECONDS.
FRI NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W
1 FOOT AT 3 SECONDS AND NE 1 FOOT AT 5 SECONDS.
SAT AND SAT NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: W 1 FOOT AT 3 SECONDS AND E 1 FOOT AT 4 SECONDS. A CHANCE
OF SHOWERS.
SUN
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
SUN NIGHT THROUGH MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP
TO 25 KT. SEAS AROUND 2 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.
ANZ254-301500-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
1004 PM EDT WED APR 29 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING
OVERNIGHT
SE WINDS AROUND 10 KT. SEAS 5 TO 7 FT. WAVE DETAIL:
E 7 FT AT 10 SECONDS AND E 3 FT AT 5 SECONDS. PATCHY FOG. A
SLIGHT CHANCE OF SHOWERS, THEN A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF TSTMS. VSBY 1 NM OR LESS.
THU
SE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS 5 TO 7 FT. WAVE DETAIL: E 7 FT AT 10 SECONDS AND S 3 FT AT
5 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 NM OR LESS.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: E 6 FT AT 10 SECONDS AND E
3 FT AT 5 SECONDS. PATCHY FOG IN THE EVENING. A CHANCE OF SHOWERS
IN THE EVENING WITH VSBY 1 TO 3 NM.
FRI
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 4 TO 5 FT. WAVE DETAIL: E 5 FT AT 10 SECONDS AND E 3 FT AT
5 SECONDS.
FRI NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 3 TO 5 FT. WAVE DETAIL: E 5 FT AT 9 SECONDS AND SW
2 FT AT 4 SECONDS.
SAT
SW WINDS 5 TO 10 KT, BECOMING S IN THE AFTERNOON. SEAS
3 TO 5 FT. WAVE DETAIL: E 4 FT AT 9 SECONDS AND E 2 FT AT
5 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
SAT NIGHT
S WINDS 5 TO 10 KT, BECOMING E AFTER MIDNIGHT. SEAS
3 TO 4 FT. A CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS
LIKELY AFTER MIDNIGHT.
SUN
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. A CHANCE OF SHOWERS.
SUN NIGHT THROUGH MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 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.
ANZ255-301500-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
1004 PM EDT WED APR 29 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING
OVERNIGHT
E WINDS 5 TO 10 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SE
6 FT AT 6 SECONDS AND E 6 FT AT 10 SECONDS. PATCHY FOG. A CHANCE
OF SHOWERS WITH A SLIGHT CHANCE OF TSTMS. VSBY 1 NM OR LESS.
THU
S WINDS 5 TO 10 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SE 6 FT
AT 6 SECONDS AND SE 6 FT AT 10 SECONDS. PATCHY FOG. SHOWERS
LIKELY. VSBY 1 NM OR LESS, INCREASING TO 1 TO 3 NM IN THE
AFTERNOON.
THU NIGHT
W WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: SE 5 FT AT 10 SECONDS AND
W 3 FT AT 4 SECONDS. PATCHY FOG IN THE EVENING.
FRI
W WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS 4 TO
6 FT. WAVE DETAIL: W 4 FT AT 5 SECONDS AND SE 4 FT AT 10 SECONDS.
FRI NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 3 TO 5 FT. WAVE DETAIL: W 4 FT AT 5 SECONDS AND SE
4 FT AT 9 SECONDS.
SAT
SW WINDS 5 TO 10 KT, BECOMING S IN THE AFTERNOON. SEAS
3 TO 4 FT. WAVE DETAIL: E 3 FT AT 9 SECONDS AND SW 2 FT AT
5 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
SAT NIGHT
S WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
3 TO 4 FT. A CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS
LIKELY AFTER MIDNIGHT.
SUN
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. A CHANCE OF SHOWERS.
SUN NIGHT THROUGH MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 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.
ANZ256-301500-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
1004 PM EDT WED APR 29 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING
OVERNIGHT
E WINDS 5 TO 10 KT, BECOMING SE. SEAS 4 TO 5 FT.
WAVE DETAIL: SE 5 FT AT 5 SECONDS AND E 5 FT AT 10 SECONDS.
PATCHY FOG. A CHANCE OF SHOWERS. VSBY 1 TO 3 NM, DECREASING TO
1 NM OR LESS.
THU
SE WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
4 TO 5 FT. WAVE DETAIL: SE 5 FT AT 5 SECONDS AND E 5 FT AT
10 SECONDS. PATCHY FOG. SHOWERS LIKELY, MAINLY IN THE MORNING.
VSBY 1 NM OR LESS, INCREASING TO 1 TO 3 NM IN THE AFTERNOON.
THU NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: E 5 FT AT 10 SECONDS AND
NW 3 FT AT 9 SECONDS.
FRI
W WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. WAVE DETAIL: W 4 FT
AT 4 SECONDS AND SE 4 FT AT 10 SECONDS.
FRI NIGHT
SW WINDS 15 TO 20 KT, BECOMING W 5 TO 10 KT AFTER
MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND
SE 3 FT AT 9 SECONDS.
SAT AND SAT NIGHT
NW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE
DETAIL: E 3 FT AT 9 SECONDS AND SW 2 FT AT 4 SECONDS. A CHANCE OF
SHOWERS.
SUN
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. A CHANCE OF SHOWERS.
SUN NIGHT THROUGH MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 4 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.
ANZ232-301500-
NANTUCKET SOUND-
1004 PM EDT WED APR 29 2026
OVERNIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: E
2 FT AT 5 SECONDS AND E 2 FT AT 10 SECONDS. PATCHY FOG. A CHANCE
OF SHOWERS WITH A SLIGHT CHANCE OF TSTMS. VSBY 1 NM OR LESS.
THU
SE WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SE 2 FT
AT 5 SECONDS AND SE 2 FT AT 11 SECONDS. PATCHY FOG. SHOWERS. VSBY
1 NM OR LESS, INCREASING TO 1 TO 3 NM IN THE AFTERNOON.
THU NIGHT
W WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: E 2 FT AT 5 SECONDS AND E
2 FT AT 10 SECONDS. PATCHY FOG IN THE EVENING.
FRI
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 2 TO 4 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND E 2 FT AT
5 SECONDS.
FRI NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE
DETAIL: W 2 FT AT 4 SECONDS AND E 2 FT AT 10 SECONDS.
SAT AND SAT NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: E 2 FT AT 9 SECONDS AND W 1 FOOT AT 3 SECONDS. A CHANCE
OF SHOWERS.
SUN
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. A CHANCE OF SHOWERS.
SUN NIGHT THROUGH MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 2 TO 3 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.
ANZ233-301500-
VINEYARD SOUND-
1004 PM EDT WED APR 29 2026
OVERNIGHT
E WINDS 5 TO 10 KT, BECOMING SE. SEAS 2 TO 3 FT.
WAVE DETAIL: S 1 FOOT AT 4 SECONDS AND NE 1 FOOT AT 4 SECONDS.
PATCHY FOG. A CHANCE OF SHOWERS. VSBY 1 TO 3 NM, DECREASING TO
1 NM OR LESS.
THU
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 1 FOOT
AT 5 SECONDS AND SW 1 FOOT AT 5 SECONDS. PATCHY FOG. SHOWERS.
VSBY 1 NM OR LESS, INCREASING TO 1 TO 3 NM IN THE AFTERNOON.
THU NIGHT
W WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND E
1 FOOT AT 5 SECONDS.
FRI
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND E 1 FOOT AT
5 SECONDS.
FRI NIGHT
W 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: SW 3 FT AT 5 SECONDS AND E 1 FOOT AT 5 SECONDS.
SAT AND SAT NIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 2 FT AT 5 SECONDS AND SW 2 FT AT 8 SECONDS. A CHANCE
OF SHOWERS.
SUN
W WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
SUN NIGHT THROUGH MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 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.
ANZ234-301500-
BUZZARDS BAY-
1004 PM EDT WED APR 29 2026
OVERNIGHT
E WINDS 5 TO 10 KT, BECOMING SE. SEAS AROUND 2 FT.
WAVE DETAIL: NE 1 FOOT AT 2 SECONDS AND S 1 FOOT AT 4 SECONDS.
PATCHY FOG. SHOWERS LIKELY. VSBY 1 NM OR LESS.
THU
S WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE DETAIL: S
1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 11 SECONDS. PATCHY FOG.
SHOWERS LIKELY. VSBY 1 NM OR LESS, INCREASING TO 1 TO 3 NM IN THE
AFTERNOON.
THU NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 1 FOOT AT 2 SECONDS AND E 1 FOOT AT 5 SECONDS.
FRI
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 1 FOOT AT
5 SECONDS.
FRI NIGHT
W 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: SW 3 FT AT 5 SECONDS AND E 1 FOOT AT 5 SECONDS.
SAT AND SAT NIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: N 2 FT AT 8 SECONDS AND SW 1 FOOT AT 4 SECONDS. A CHANCE
OF SHOWERS.
SUN
W WINDS 15 TO 20 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
SUN NIGHT THROUGH MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 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.
ANZ235-301500-
RHODE ISLAND SOUND-
1004 PM EDT WED APR 29 2026
OVERNIGHT
E WINDS 5 TO 10 KT, BECOMING SE. SEAS 2 TO 4 FT.
WAVE DETAIL: SE 4 FT AT 10 SECONDS AND SE 2 FT AT 5 SECONDS.
PATCHY FOG. A CHANCE OF SHOWERS. VSBY 1 TO 3 NM, DECREASING TO
1 NM OR LESS.
THU
SE WINDS 5 TO 10 KT, BECOMING S IN THE AFTERNOON. SEAS
2 TO 4 FT. WAVE DETAIL: SE 4 FT AT 10 SECONDS AND SE 2 FT AT
5 SECONDS. PATCHY FOG. SHOWERS LIKELY. VSBY 1 NM OR LESS,
INCREASING TO 1 TO 3 NM IN THE AFTERNOON.
THU NIGHT
W WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT AT 6 SECONDS AND SE
3 FT AT 10 SECONDS.
FRI
W WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: W 3 FT
AT 4 SECONDS AND SE 3 FT AT 10 SECONDS.
FRI NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE
DETAIL: SW 3 FT AT 4 SECONDS AND SE 2 FT AT 10 SECONDS.
SAT AND SAT NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: S 3 FT AT 5 SECONDS AND SE 2 FT AT 9 SECONDS. A CHANCE OF
SHOWERS.
SUN
W WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
SUN NIGHT AND MON
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT.
MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 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.
ANZ237-301500-
BLOCK ISLAND SOUND-
1004 PM EDT WED APR 29 2026
OVERNIGHT
E WINDS AROUND 5 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SE
4 FT AT 10 SECONDS AND E 2 FT AT 4 SECONDS. PATCHY FOG. A CHANCE
OF SHOWERS. VSBY 1 TO 3 NM, DECREASING TO 1 NM OR LESS.
THU
SE WINDS AROUND 5 KT, BECOMING W IN THE AFTERNOON. SEAS
3 TO 4 FT. WAVE DETAIL: SE 4 FT AT 10 SECONDS AND E 2 FT AT
6 SECONDS. PATCHY FOG. SHOWERS LIKELY, MAINLY IN THE MORNING.
VSBY 1 NM OR LESS, INCREASING TO 1 TO 3 NM IN THE AFTERNOON.
THU NIGHT
W WINDS 5 TO 10 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT AT 10 SECONDS AND
SE 2 FT AT 5 SECONDS.
FRI
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT AT 10 SECONDS AND W 2 FT AT
3 SECONDS.
FRI NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE
DETAIL: SE 3 FT AT 10 SECONDS AND W 2 FT AT 4 SECONDS.
SAT AND SAT NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SE 2 FT AT 9 SECONDS AND SW 1 FOOT AT 4 SECONDS. A CHANCE
OF SHOWERS.
SUN
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. A CHANCE OF SHOWERS.
SUN NIGHT AND MON
W WINDS 10 TO 15 KT, BECOMING SW 15 TO
20 KT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT.
MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 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.
ANZ230-301500-
BOSTON HARBOR-
1004 PM EDT WED APR 29 2026
OVERNIGHT
E WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS, EXCEPT
2 TO 4 FT AT THE OUTER HARBOR ENTRANCE. PATCHY FOG. A SLIGHT
CHANCE OF SHOWERS. SHOWERS LIKELY. VSBY 1 NM OR LESS.
THU
SE WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS, EXCEPT 2 TO
4 FT AT THE OUTER HARBOR ENTRANCE. PATCHY FOG. SHOWERS. VSBY 1 NM
OR LESS, INCREASING TO 1 TO 3 NM IN THE AFTERNOON.
THU NIGHT
NW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS, THEN AROUND 2 FT AFTER MIDNIGHT.
FRI
W WINDS 10 TO 15 KT. WAVES AROUND 2 FT.
FRI NIGHT
W WINDS 5 TO 10 KT. WAVES AROUND 2 FT IN THE
EVENING, THEN 1 FOOT OR LESS.
SAT AND SAT NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. A
CHANCE OF SHOWERS.
SUN
NW WINDS 10 TO 15 KT. WAVES AROUND 2 FT. A CHANCE OF
SHOWERS.
SUN NIGHT AND MON
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT.
WAVES AROUND 2 FT.
MON NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP 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.
ANZ236-301500-
NARRAGANSETT BAY-
1004 PM EDT WED APR 29 2026
OVERNIGHT
E WINDS AROUND 5 KT. WAVES AROUND 2 FT. PATCHY FOG.
A CHANCE OF SHOWERS. VSBY 1 TO 3 NM, DECREASING TO 1 NM OR LESS.
THU
S WINDS AROUND 5 KT. WAVES AROUND 2 FT. PATCHY FOG.
SHOWERS LIKELY. VSBY 1 NM OR LESS, INCREASING TO 1 TO 3 NM IN THE
AFTERNOON.
THU NIGHT
W WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
FRI
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES AROUND 2 FT.
FRI NIGHT
W WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES AROUND 2 FT.
SAT AND SAT NIGHT
NW WINDS 5 TO 10 KT. WAVES AROUND 2 FT. A
CHANCE OF SHOWERS.
SUN
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES AROUND
2 FT. A CHANCE OF SHOWERS.
SUN NIGHT AND MON
W WINDS 10 TO 15 KT, BECOMING SW 15 TO
20 KT. GUSTS UP TO 25 KT. WAVES 2 TO 3 FT.
MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES
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.
ANZ280-301500-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
1004 PM EDT WED APR 29 2026
OVERNIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
AROUND 7 FT. WAVE DETAIL: E 7 FT AT 10 SECONDS. PATCHY FOG. A
CHANCE OF SHOWERS. A SLIGHT CHANCE OF TSTMS. VSBY 1 NM OR LESS.
THU
SE WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 6 TO 7 FT. WAVE DETAIL: E 7 FT
AT 10 SECONDS AND SE 1 FOOT AT 2 SECONDS. PATCHY FOG. SHOWERS.
VSBY 1 NM OR LESS.
THU NIGHT
S WINDS 5 TO 10 KT, BECOMING W 10 TO 15 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 5 TO 6 FT. WAVE DETAIL: E
6 FT AT 10 SECONDS AND W 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS
IN THE EVENING. PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 NM OR LESS.
FRI
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS 5 TO 6 FT. WAVE DETAIL: E 5 FT AT 9 SECONDS AND W 2 FT AT
3 SECONDS.
FRI NIGHT
W WINDS AROUND 10 KT. SEAS AROUND 5 FT. WAVE DETAIL:
E 5 FT AT 9 SECONDS AND W 2 FT AT 3 SECONDS.
SAT
W WINDS AROUND 10 KT, BECOMING S IN THE AFTERNOON. SEAS
4 TO 5 FT. WAVE DETAIL: E 4 FT AT 10 SECONDS AND W 1 FOOT AT
3 SECONDS.
SAT NIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 4 FT. A CHANCE OF
SHOWERS.
SUN
NW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS.
SUN NIGHT THROUGH MON NIGHT
SW 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.
ANZ281-301500-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
1004 PM EDT WED APR 29 2026
OVERNIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
7 TO 8 FT. WAVE DETAIL: E 8 FT AT 10 SECONDS AND E 4 FT AT
5 SECONDS. PATCHY FOG. A SLIGHT CHANCE OF SHOWERS, THEN A CHANCE
OF SHOWERS WITH A SLIGHT CHANCE OF TSTMS. VSBY 1 NM OR LESS.
THU
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 6 TO
7 FT. WAVE DETAIL: E 7 FT AT 10 SECONDS AND SE 3 FT AT 5 SECONDS.
PATCHY FOG. SHOWERS LIKELY. VSBY 1 NM OR LESS.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. SEAS 5 TO 6 FT. WAVE DETAIL: E 6 FT AT 10 SECONDS AND E
3 FT AT 5 SECONDS. PATCHY FOG IN THE EVENING. A CHANCE OF SHOWERS
IN THE EVENING WITH VSBY 1 TO 3 NM.
FRI
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS 5 TO 6 FT. WAVE DETAIL: E 5 FT AT 10 SECONDS AND E 3 FT AT
5 SECONDS.
FRI NIGHT
W WINDS 10 TO 15 KT. SEAS 5 TO 6 FT. WAVE DETAIL: E
5 FT AT 9 SECONDS AND W 3 FT AT 5 SECONDS.
SAT
SW WINDS AROUND 10 KT, BECOMING S IN THE AFTERNOON. SEAS
4 TO 5 FT. WAVE DETAIL: E 4 FT AT 10 SECONDS AND W 3 FT AT
6 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
SAT NIGHT
S WINDS 5 TO 10 KT, BECOMING E AFTER MIDNIGHT. SEAS
AROUND 4 FT. A CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS
LIKELY AFTER MIDNIGHT.
SUN
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. SHOWERS LIKELY.
SUN NIGHT THROUGH MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 4 TO 6 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.
ANZ282-301500-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
1004 PM EDT WED APR 29 2026
OVERNIGHT
E WINDS 5 TO 10 KT. SEAS 6 TO 8 FT. WAVE DETAIL: E
7 FT AT 10 SECONDS AND SE 5 FT AT 5 SECONDS. PATCHY FOG. A CHANCE
OF SHOWERS WITH A SLIGHT CHANCE OF TSTMS. VSBY 1 NM OR LESS.
THU
SE WINDS 5 TO 10 KT. SEAS 6 TO 7 FT. WAVE DETAIL: E 7 FT
AT 10 SECONDS AND SE 6 FT AT 6 SECONDS. PATCHY FOG. A CHANCE OF
SHOWERS IN THE MORNING. SHOWERS LIKELY IN THE AFTERNOON. VSBY
1 NM OR LESS.
THU NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS AROUND 6 FT. WAVE DETAIL: E 6 FT AT 10 SECONDS AND
NW 3 FT AT 4 SECONDS. PATCHY FOG IN THE EVENING. A CHANCE OF
SHOWERS IN THE EVENING.
FRI
W WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS 5 TO
6 FT. WAVE DETAIL: E 5 FT AT 10 SECONDS AND W 3 FT AT 5 SECONDS.
FRI NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 4 TO 6 FT. WAVE DETAIL: W 4 FT AT 6 SECONDS AND E
4 FT AT 9 SECONDS.
SAT
SW WINDS AROUND 10 KT, BECOMING S IN THE AFTERNOON. SEAS
4 TO 5 FT. WAVE DETAIL: E 4 FT AT 9 SECONDS AND NE 2 FT AT
5 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
SAT NIGHT
SE WINDS 5 TO 10 KT, BECOMING NE 10 TO 15 KT AFTER
MIDNIGHT. SEAS AROUND 4 FT. SHOWERS LIKELY.
SUN
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
5 FT. A CHANCE OF SHOWERS.
SUN NIGHT THROUGH MON NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 5 TO 6 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.
ANZ283-301500-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
1004 PM EDT WED APR 29 2026
OVERNIGHT
E WINDS 5 TO 10 KT, BECOMING SE. SEAS 6 TO 7 FT.
WAVE DETAIL: S 7 FT AT 6 SECONDS AND E 6 FT AT 10 SECONDS. PATCHY
FOG. A CHANCE OF SHOWERS. VSBY 1 NM OR LESS.
THU
S WINDS 5 TO 10 KT. SEAS 5 TO 6 FT. WAVE DETAIL: SE 6 FT
AT 6 SECONDS AND E 6 FT AT 10 SECONDS. PATCHY FOG. SHOWERS
LIKELY. VSBY 1 NM OR LESS, INCREASING TO 1 TO 3 NM IN THE
AFTERNOON.
THU NIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 5 TO 6 FT. WAVE DETAIL: E 5 FT AT 10 SECONDS AND
NW 3 FT AT 10 SECONDS.
FRI
W WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS 5 TO
6 FT. WAVE DETAIL: E 5 FT AT 10 SECONDS AND NW 4 FT AT 4 SECONDS.
FRI NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 4 TO 6 FT. WAVE DETAIL: W 4 FT AT 5 SECONDS AND E
4 FT AT 9 SECONDS.
SAT
SW WINDS 5 TO 10 KT, BECOMING S IN THE AFTERNOON. SEAS
3 TO 4 FT. WAVE DETAIL: E 3 FT AT 9 SECONDS AND SW 2 FT AT
5 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
SAT NIGHT
S WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT. SHOWERS LIKELY.
SUN
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. A CHANCE OF SHOWERS.
SUN NIGHT THROUGH MON NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 5 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.
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