704
FZUS51 KBOX 301706
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
105 PM EDT MON MAR 30 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 25 NM
ANZ200-310600-
105 PM EDT MON MAR 30 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
A BACKDOOR COLD FRONT APPROACHES FROM THE N TONIGHT, AND LINGERS
NEARBY INTO TUE. A LOW PRES MOVING ACROSS THE GREAT LAKES INTO THE
SAINT LAWRENCE VALLEY WILL BRING A ROUND OF SHOWERS TO THE WATERS
LATER TUE INTO WED. ANOTHER LOW PRES SHOULD APPROACH THE GREAT LAKES
LATE THIS WEEK, MEANING MORE POSSIBLE SHOWERS THU INTO FRI.
ANZ250-310600-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
105 PM EDT MON MAR 30 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
THIS AFTERNOON
SW WINDS AROUND 20 KT WITH GUSTS UP TO 30 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: SE 4 FT AT 7 SECONDS.
TONIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. WAVE DETAIL: S 4 FT AT 6 SECONDS AND E 1 FOOT AT 8 SECONDS.
A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE 2 FT AT 7 SECONDS.
SHOWERS LIKELY IN THE MORNING. A CHANCE OF SHOWERS IN THE
AFTERNOON.
TUE NIGHT
S WINDS 15 TO 20 KT, BECOMING SW 20 TO 25 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 2 TO 4 FT, BUILDING TO 4 TO
6 FT AFTER MIDNIGHT. WAVE DETAIL: S 3 FT AT 5 SECONDS, BECOMING S
5 FT AT 6 SECONDS AND NE 2 FT AT 6 SECONDS. A CHANCE OF RAIN
AFTER MIDNIGHT.
WED
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 5 TO 7 FT. WAVE DETAIL: S 5 FT
AT 6 SECONDS AND NE 2 FT AT 6 SECONDS. A CHANCE OF RAIN.
WED NIGHT
NW WINDS 15 TO 20 KT, BECOMING NE AFTER MIDNIGHT.
SEAS 3 TO 5 FT. WAVE DETAIL: N 3 FT AT 4 SECONDS AND SE 3 FT AT
7 SECONDS. A CHANCE OF RAIN.
THU THROUGH FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO
25 KT. SEAS 3 TO 5 FT. A CHANCE OF RAIN.
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.
ANZ251-310600-
MASSACHUSETTS BAY AND IPSWICH BAY-
105 PM EDT MON MAR 30 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
THIS AFTERNOON
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND E 1 FOOT AT
8 SECONDS.
TONIGHT
SW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND E
1 FOOT AT 8 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
S WINDS 10 TO 15 KT, BECOMING N IN THE AFTERNOON. GUSTS UP
TO 20 KT. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT IN THE AFTERNOON.
WAVE DETAIL: SE 1 FOOT AT 4 SECONDS AND S 1 FOOT AT 7 SECONDS,
BECOMING S 2 FT AT 7 SECONDS AND SE 1 FOOT AT 4 SECONDS. SHOWERS
LIKELY IN THE MORNING.
TUE NIGHT
E WINDS 15 TO 20 KT, BECOMING SW 20 TO 25 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS. A
CHANCE OF RAIN AFTER MIDNIGHT.
WED
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND
NE 2 FT AT 6 SECONDS. A CHANCE OF RAIN.
WED NIGHT
N WINDS AROUND 15 KT, BECOMING NE AFTER MIDNIGHT.
SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 6 SECONDS AND NW 2 FT AT
3 SECONDS. A CHANCE OF RAIN.
THU THROUGH FRI NIGHT
W WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. A
CHANCE OF RAIN.
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.
ANZ231-310600-
CAPE COD BAY-
105 PM EDT MON MAR 30 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
THIS AFTERNOON
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND S 3 FT AT
7 SECONDS.
TONIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND S 3 FT AT 7 SECONDS.
A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 1 FOOT
OR LESS, THEN AROUND 2 FT IN THE AFTERNOON. WAVE DETAIL: SW
1 FOOT AT 3 SECONDS AND S 1 FOOT AT 7 SECONDS, BECOMING SW 2 FT
AT 3 SECONDS AND S 2 FT AT 7 SECONDS. SHOWERS LIKELY IN THE
MORNING.
TUE NIGHT
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT
AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS 2 TO 4 FT. WAVE DETAIL:
SW 4 FT AT 4 SECONDS AND S 3 FT AT 7 SECONDS.
WED
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SW 4 FT AT 4 SECONDS AND S 3 FT AT 7 SECONDS.
A CHANCE OF RAIN IN THE AFTERNOON.
WED NIGHT
NW WINDS 10 TO 15 KT, BECOMING NE AFTER MIDNIGHT.
GUSTS UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT
8 SECONDS AND W 2 FT AT 4 SECONDS. RAIN LIKELY.
THU THROUGH FRI NIGHT
SW WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. A
CHANCE OF RAIN.
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.
ANZ254-310600-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
105 PM EDT MON MAR 30 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING
THIS AFTERNOON
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 5 TO 7 FT. WAVE DETAIL: SW 7 FT AT 5 SECONDS AND E 1 FOOT AT
8 SECONDS.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT, SUBSIDING TO 3 TO 5 FT AFTER MIDNIGHT. WAVE DETAIL: SW 7 FT
AT 6 SECONDS AND E 1 FOOT AT 8 SECONDS, BECOMING S 5 FT AT
8 SECONDS AND W 2 FT AT 4 SECONDS. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
TUE
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. WAVE DETAIL: S 5 FT AT 8 SECONDS AND W 2 FT AT 4 SECONDS.
SHOWERS LIKELY IN THE MORNING. A CHANCE OF SHOWERS IN THE
AFTERNOON.
TUE NIGHT
SW WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT
AFTER MIDNIGHT. SEAS 5 TO 7 FT, BUILDING TO 6 TO 9 FT AFTER
MIDNIGHT. WAVE DETAIL: S 6 FT AT 8 SECONDS AND SW 2 FT AT
4 SECONDS, BECOMING S 8 FT AT 8 SECONDS AND SW 2 FT AT 5 SECONDS.
WED
SW WINDS 25 TO 30 KT. SEAS 7 TO 10 FT. WAVE DETAIL: S 9 FT
AT 8 SECONDS AND W 2 FT AT 5 SECONDS. A CHANCE OF RAIN IN THE
AFTERNOON.
WED NIGHT
W WINDS 15 TO 20 KT, BECOMING NE AFTER MIDNIGHT.
GUSTS UP TO 25 KT. SEAS 5 TO 8 FT, SUBSIDING TO 4 TO 6 FT AFTER
MIDNIGHT. WAVE DETAIL: S 7 FT AT 8 SECONDS AND W 2 FT AT
4 SECONDS, BECOMING S 4 FT AT 8 SECONDS AND N 3 FT AT 4 SECONDS.
A CHANCE OF RAIN.
THU THROUGH FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO
25 KT. SEAS 3 TO 5 FT. A CHANCE OF RAIN.
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.
ANZ255-310600-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
105 PM EDT MON MAR 30 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING
THIS AFTERNOON
SW WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT.
SEAS 7 TO 10 FT. WAVE DETAIL: SW 10 FT AT 8 SECONDS AND SW 2 FT
AT 4 SECONDS.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 6 TO
9 FT, SUBSIDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: SW 9 FT
AT 8 SECONDS AND SW 2 FT AT 4 SECONDS, BECOMING SW 7 FT AT
8 SECONDS AND W 1 FOOT AT 4 SECONDS. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
TUE
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. WAVE DETAIL: SW 7 FT AT 8 SECONDS AND SW 1 FOOT AT
4 SECONDS. A CHANCE OF SHOWERS.
TUE NIGHT
SW WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
6 TO 9 FT, BUILDING TO 9 TO 12 FT AFTER MIDNIGHT. WAVE DETAIL: SW
9 FT AT 8 SECONDS AND SW 1 FOOT AT 4 SECONDS, BECOMING SW 12 FT
AT 8 SECONDS AND SW 2 FT AT 4 SECONDS.
WED
SW WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 9 TO
12 FT. WAVE DETAIL: SW 12 FT AT 8 SECONDS AND SW 2 FT AT
4 SECONDS. A CHANCE OF RAIN IN THE AFTERNOON.
WED NIGHT
W WINDS 15 TO 20 KT, BECOMING NE AFTER MIDNIGHT.
GUSTS UP TO 25 KT. SEAS 7 TO 10 FT, SUBSIDING TO 5 TO 7 FT AFTER
MIDNIGHT. WAVE DETAIL: SW 9 FT AT 8 SECONDS AND W 1 FOOT AT
4 SECONDS, BECOMING S 6 FT AT 8 SECONDS AND N 2 FT AT 3 SECONDS.
RAIN LIKELY.
THU
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. A CHANCE OF RAIN.
THU NIGHT THROUGH FRI NIGHT
SW WINDS 20 TO 25 KT. SEAS 3 TO
5 FT. A CHANCE OF RAIN.
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.
ANZ256-310600-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
105 PM EDT MON MAR 30 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING
THIS AFTERNOON
SW WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT.
SEAS 7 TO 9 FT. WAVE DETAIL: SW 9 FT AT 7 SECONDS AND SW 1 FOOT
AT 4 SECONDS.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 6 TO
9 FT, SUBSIDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: SW 9 FT
AT 8 SECONDS AND SW 1 FOOT AT 4 SECONDS, BECOMING SW 7 FT AT
8 SECONDS AND SW 1 FOOT AT 4 SECONDS. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
TUE
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. WAVE DETAIL: S 7 FT AT 8 SECONDS AND E 1 FOOT AT 9 SECONDS.
SHOWERS LIKELY IN THE MORNING.
TUE NIGHT
SW WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
7 TO 10 FT, BUILDING TO 9 TO 12 FT AFTER MIDNIGHT. WAVE DETAIL: S
9 FT AT 8 SECONDS AND SW 1 FOOT AT 4 SECONDS, BECOMING SW 11 FT
AT 8 SECONDS AND SW 1 FOOT AT 4 SECONDS. PATCHY FOG IN THE
EVENING WITH VSBY 1 TO 3 NM.
WED
SW WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 9 TO
12 FT. WAVE DETAIL: SW 11 FT AT 8 SECONDS AND SW 1 FOOT AT
4 SECONDS. A CHANCE OF RAIN IN THE AFTERNOON.
WED NIGHT
W WINDS 15 TO 20 KT, BECOMING NE AFTER MIDNIGHT.
GUSTS UP TO 25 KT. SEAS 7 TO 10 FT, SUBSIDING TO 5 TO 7 FT AFTER
MIDNIGHT. WAVE DETAIL: S 8 FT AT 8 SECONDS AND W 1 FOOT AT
4 SECONDS, BECOMING S 6 FT AT 8 SECONDS AND NE 2 FT AT 3 SECONDS.
RAIN LIKELY.
THU AND THU NIGHT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 4 TO 6 FT. A CHANCE OF RAIN.
FRI AND FRI NIGHT
S WINDS 15 TO 20 KT, BECOMING SW 20 TO
25 KT. SEAS 3 TO 5 FT. A CHANCE OF RAIN.
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.
ANZ232-310600-
NANTUCKET SOUND-
105 PM EDT MON MAR 30 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: SW 4 FT AT 4 SECONDS AND SW 4 FT AT
7 SECONDS.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 4 FT AT 4 SECONDS AND SW 3 FT AT 8 SECONDS.
A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND SW 2 FT AT 8 SECONDS.
SHOWERS LIKELY IN THE MORNING. A CHANCE OF SHOWERS IN THE
AFTERNOON.
TUE NIGHT
SW WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT
AFTER MIDNIGHT. SEAS 3 TO 5 FT, BUILDING TO 5 TO 7 FT AFTER
MIDNIGHT. WAVE DETAIL: SW 4 FT AT 4 SECONDS AND SW 3 FT AT
8 SECONDS, BECOMING SW 5 FT AT 5 SECONDS AND SW 4 FT AT
8 SECONDS.
WED
SW WINDS 25 TO 30 KT, DIMINISHING TO 20 TO 25 KT IN THE
AFTERNOON. SEAS 5 TO 7 FT. WAVE DETAIL: SW 5 FT AT 5 SECONDS AND
SW 4 FT AT 8 SECONDS. A CHANCE OF RAIN IN THE AFTERNOON.
WED NIGHT
W WINDS 15 TO 20 KT, BECOMING NE AFTER MIDNIGHT.
SEAS 3 TO 5 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND SW 3 FT AT
8 SECONDS. RAIN LIKELY.
THU THROUGH FRI NIGHT
SW WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. A
CHANCE OF RAIN.
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.
ANZ233-310600-
VINEYARD SOUND-
105 PM EDT MON MAR 30 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
SW WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT.
SEAS 5 TO 7 FT. WAVE DETAIL: SW 7 FT AT 7 SECONDS AND SW 2 FT AT
4 SECONDS.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. WAVE DETAIL: SW 6 FT AT 8 SECONDS AND SW 2 FT AT 4 SECONDS.
A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT IN THE
AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 8 SECONDS AND
SW 2 FT AT 4 SECONDS. SHOWERS LIKELY IN THE MORNING.
TUE NIGHT
SW WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
4 TO 6 FT, BUILDING TO 6 TO 9 FT AFTER MIDNIGHT. WAVE DETAIL: SW
6 FT AT 8 SECONDS AND SW 2 FT AT 4 SECONDS, BECOMING SW 8 FT AT
8 SECONDS AND SW 3 FT AT 4 SECONDS. PATCHY FOG IN THE EVENING
WITH VSBY 1 TO 3 NM.
WED
SW WINDS 25 TO 30 KT. SEAS 6 TO 9 FT. WAVE DETAIL: SW 8 FT
AT 8 SECONDS AND SW 3 FT AT 4 SECONDS. A CHANCE OF RAIN IN THE
AFTERNOON.
WED NIGHT
W WINDS 15 TO 20 KT, BECOMING NE AFTER MIDNIGHT.
SEAS 4 TO 6 FT. WAVE DETAIL: SW 5 FT AT 8 SECONDS AND NE 2 FT AT
4 SECONDS. RAIN LIKELY.
THU THROUGH FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO
25 KT. SEAS 2 TO 4 FT. A CHANCE OF RAIN.
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.
ANZ234-310600-
BUZZARDS BAY-
105 PM EDT MON MAR 30 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
SW WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND SW 3 FT AT
4 SECONDS.
TONIGHT
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: SW 5 FT
AT 7 SECONDS AND SW 3 FT AT 4 SECONDS. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
TUE
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SW 4 FT AT 8 SECONDS AND SW 3 FT AT 4 SECONDS.
SHOWERS LIKELY IN THE MORNING.
TUE NIGHT
SW WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT
AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: SW 6 FT AT 8 SECONDS
AND SW 4 FT AT 4 SECONDS. PATCHY FOG IN THE EVENING WITH VSBY
1 TO 3 NM.
WED
SW WINDS 25 TO 30 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SW 6 FT
AT 8 SECONDS AND SW 3 FT AT 4 SECONDS. A CHANCE OF RAIN IN THE
AFTERNOON.
WED NIGHT
W WINDS 10 TO 15 KT, BECOMING NE 15 TO 20 KT AFTER
MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 4 FT AT 8 SECONDS AND W
2 FT AT 4 SECONDS. RAIN LIKELY.
THU THROUGH FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO
25 KT. SEAS 2 TO 3 FT. A CHANCE OF RAIN.
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.
ANZ235-310600-
RHODE ISLAND SOUND-
105 PM EDT MON MAR 30 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING
THIS AFTERNOON
SW WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT.
SEAS 5 TO 8 FT. WAVE DETAIL: SW 8 FT AT 7 SECONDS AND SW 2 FT AT
4 SECONDS.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. WAVE DETAIL: SW 7 FT AT 8 SECONDS AND SW 2 FT AT 4 SECONDS.
A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. WAVE DETAIL: S 6 FT AT 8 SECONDS AND SW 1 FOOT AT
3 SECONDS. SHOWERS LIKELY IN THE MORNING.
TUE NIGHT
SW WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
5 TO 7 FT, BUILDING TO 7 TO 10 FT AFTER MIDNIGHT. WAVE DETAIL: S
7 FT AT 8 SECONDS AND SW 1 FOOT AT 4 SECONDS, BECOMING S 10 FT AT
8 SECONDS AND SW 2 FT AT 4 SECONDS. PATCHY FOG IN THE EVENING
WITH VSBY 1 TO 3 NM.
WED
SW WINDS 25 TO 30 KT. SEAS 7 TO 10 FT. WAVE DETAIL: S
10 FT AT 8 SECONDS AND SW 2 FT AT 5 SECONDS. A CHANCE OF RAIN IN
THE AFTERNOON.
WED NIGHT
W WINDS 15 TO 20 KT, BECOMING NE AFTER MIDNIGHT.
SEAS 5 TO 7 FT. WAVE DETAIL: S 7 FT AT 8 SECONDS AND NE 2 FT AT
3 SECONDS. RAIN LIKELY.
THU AND THU NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 5 FT. A CHANCE OF RAIN.
FRI AND FRI NIGHT
S WINDS 15 TO 20 KT, BECOMING SW 20 TO
25 KT. SEAS 2 TO 4 FT. A CHANCE OF RAIN.
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.
ANZ237-310600-
BLOCK ISLAND SOUND-
105 PM EDT MON MAR 30 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING
THIS AFTERNOON
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS AND W 2 FT AT
4 SECONDS.
TONIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. WAVE DETAIL: S 6 FT AT 8 SECONDS AND W 2 FT AT 4 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 5 FT AT 8 SECONDS AND SW 1 FOOT AT
4 SECONDS. SHOWERS LIKELY IN THE MORNING.
TUE NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 7 FT, BUILDING TO 6 TO 9 FT AFTER MIDNIGHT. WAVE DETAIL: S
6 FT AT 8 SECONDS AND SW 2 FT AT 4 SECONDS, BECOMING S 7 FT AT
8 SECONDS AND W 3 FT AT 5 SECONDS.
WED
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 6 TO
9 FT. WAVE DETAIL: S 7 FT AT 9 SECONDS AND W 3 FT AT 5 SECONDS. A
CHANCE OF RAIN IN THE AFTERNOON.
WED NIGHT
W WINDS 10 TO 15 KT, BECOMING NE AFTER MIDNIGHT.
GUSTS UP TO 20 KT. SEAS 5 TO 7 FT, SUBSIDING TO 3 TO 5 FT AFTER
MIDNIGHT. WAVE DETAIL: S 6 FT AT 8 SECONDS AND W 1 FOOT AT
4 SECONDS, BECOMING S 5 FT AT 8 SECONDS AND NE 2 FT AT 3 SECONDS.
RAIN LIKELY.
THU AND THU NIGHT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 5 FT. A CHANCE OF RAIN.
FRI AND FRI NIGHT
S WINDS 10 TO 15 KT, BECOMING SW 15 TO
20 KT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. A CHANCE OF RAIN.
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.
ANZ230-310600-
BOSTON HARBOR-
105 PM EDT MON MAR 30 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
WAVES AROUND 2 FT.
TONIGHT
SW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT AFTER
MIDNIGHT. WAVES AROUND 2 FT IN THE EVENING, THEN 1 FOOT OR LESS.
A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
SW WINDS AROUND 10 KT, BECOMING N IN THE AFTERNOON. WAVES
1 FOOT OR LESS. SHOWERS LIKELY IN THE MORNING. A CHANCE OF
SHOWERS IN THE AFTERNOON.
TUE NIGHT
E WINDS 10 TO 15 KT, BECOMING SW 20 TO 25 KT AFTER
MIDNIGHT. WAVES AROUND 2 FT. A CHANCE OF RAIN.
WED
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. WAVES AROUND 2 FT. A CHANCE OF RAIN IN THE MORNING,
THEN RAIN LIKELY IN THE AFTERNOON.
WED NIGHT
N WINDS 10 TO 15 KT, BECOMING NE AFTER MIDNIGHT.
GUSTS UP TO 20 KT. WAVES AROUND 2 FT IN THE EVENING, THEN 1 FOOT
OR LESS. A CHANCE OF RAIN.
THU THROUGH FRI NIGHT
W WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A
CHANCE OF RAIN.
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.
ANZ236-310600-
NARRAGANSETT BAY-
105 PM EDT MON MAR 30 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
WAVES 2 TO 4 FT.
TONIGHT
SW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. WAVES 2 TO 4 FT. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
TUE
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES 2 TO
4 FT. SHOWERS LIKELY IN THE MORNING.
TUE NIGHT
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT
AFTER MIDNIGHT. GUSTS UP TO 30 KT. WAVES 3 TO 5 FT.
WED
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. WAVES 3 TO
5 FT, EXCEPT 5 TO 7 FT AT THE BAY ENTRANCE. A CHANCE OF RAIN IN
THE AFTERNOON.
WED NIGHT
NW WINDS 10 TO 15 KT, BECOMING NE AFTER MIDNIGHT.
GUSTS UP TO 20 KT. WAVES 3 TO 5 FT. RAIN LIKELY.
THU THROUGH FRI NIGHT
SW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A
CHANCE OF RAIN.
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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