367
FZUS51 KBOX 240206
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1005 PM EDT MON MAR 23 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 25 NM
ANZ200-241500-
1005 PM EDT MON MAR 23 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
HIGH PRES BUILDS IN FROM THE WEST LATER TONIGHT INTO TUE. THIS HIGH
PRES SYSTEM WILL SHIFT EAST OF THE WATERS ON WED. LOW PRES THEN
APPROACHES FROM THE WEST ON THU WITH A COLD FRONT CROSSING THE
REGION VERY LATE THU NIGHT INTO FRI MORNING. HIGH PRES THEN BUILDS
BACK INTO THE REGION BY SAT.
ANZ250-241500-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
1006 PM EDT MON MAR 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON
OVERNIGHT
N WINDS 15 TO 20 KT. SEAS 6 TO 7 FT. WAVE DETAIL: NE
7 FT AT 8 SECONDS AND SE 3 FT AT 9 SECONDS. A SLIGHT CHANCE OF
RAIN AND SNOW.
TUE
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING W
5 TO 10 KT IN THE AFTERNOON. SEAS 5 TO 7 FT. WAVE DETAIL: NE 6 FT
AT 9 SECONDS AND SE 3 FT AT 9 SECONDS.
TUE NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT. WAVE DETAIL: E 5 FT AT 9 SECONDS AND SW 3 FT AT
3 SECONDS.
WED
W WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND E
3 FT AT 9 SECONDS.
WED NIGHT AND THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: S 4 FT AT 4 SECONDS AND E 2 FT AT
9 SECONDS. A CHANCE OF RAIN THROUGH THE DAY.
THU NIGHT
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 SE 3 FT AT
7 SECONDS. A CHANCE OF RAIN IN THE EVENING, THEN RAIN LIKELY
AFTER MIDNIGHT.
FRI
NW WINDS 20 TO 25 KT. SEAS 4 TO 6 FT. RAIN LIKELY.
FRI NIGHT AND SAT
N WINDS 20 TO 25 KT, DIMINISHING TO 15 TO
20 KT. SEAS 4 TO 6 FT.
SAT 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.
ANZ251-241500-
MASSACHUSETTS BAY AND IPSWICH BAY-
1006 PM EDT MON MAR 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON
OVERNIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
4 TO 5 FT. WAVE DETAIL: NE 5 FT AT 8 SECONDS AND SE 2 FT AT
9 SECONDS. A SLIGHT CHANCE OF RAIN AND SNOW.
TUE
N WINDS 10 TO 15 KT, BECOMING SW 5 TO 10 KT IN THE
AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: E 5 FT AT 9 SECONDS AND
SE 2 FT AT 9 SECONDS.
TUE NIGHT
SW WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE DETAIL: E
4 FT AT 9 SECONDS AND SW 2 FT AT 3 SECONDS.
WED
W WINDS AROUND 10 KT, BECOMING SW WITH GUSTS UP TO 20 KT
IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT
9 SECONDS AND W 2 FT AT 3 SECONDS.
WED NIGHT AND THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND E 2 FT AT
9 SECONDS. A CHANCE OF RAIN THROUGH THE DAY.
THU NIGHT
SW WINDS 20 TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL:
SW 3 FT AT 4 SECONDS AND SE 2 FT AT 8 SECONDS. A CHANCE OF RAIN
IN THE EVENING, THEN RAIN LIKELY AFTER MIDNIGHT.
FRI
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. RAIN LIKELY.
FRI NIGHT THROUGH SAT 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.
ANZ231-241500-
CAPE COD BAY-
1006 PM EDT MON MAR 23 2026
OVERNIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 4 FT. WAVE DETAIL: N 4 FT AT 6 SECONDS AND SE 2 FT AT
9 SECONDS.
TUE
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, DIMINISHING TO
5 TO 10 KT IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: NE 4 FT
AT 7 SECONDS AND N 2 FT AT 4 SECONDS.
TUE NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 7 SECONDS AND SW 2 FT AT
3 SECONDS.
WED
W WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT
AT 3 SECONDS AND NE 2 FT AT 7 SECONDS.
WED NIGHT AND THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND NE 1 FOOT
AT 7 SECONDS. A CHANCE OF RAIN THROUGH THE DAY.
THU NIGHT
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT
AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS
AND S 2 FT AT 8 SECONDS. A CHANCE OF RAIN IN THE EVENING, THEN
RAIN LIKELY AFTER MIDNIGHT.
FRI
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. RAIN LIKELY.
FRI NIGHT AND SAT
N WINDS 15 TO 20 KT. SEAS 2 TO 4 FT.
SAT 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.
ANZ254-241500-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
1006 PM EDT MON MAR 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON
OVERNIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
5 TO 8 FT. WAVE DETAIL: NE 7 FT AT 8 SECONDS AND S 4 FT AT
9 SECONDS.
TUE
N WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 5 TO 7 FT. WAVE DETAIL: NE 7 FT AT 9 SECONDS AND
S 3 FT AT 9 SECONDS.
TUE NIGHT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: NE 5 FT AT 9 SECONDS
AND SW 3 FT AT 4 SECONDS.
WED
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND NE 3 FT AT 9 SECONDS.
WED NIGHT
SW WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 4 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND E 2 FT AT
9 SECONDS. A CHANCE OF RAIN AFTER MIDNIGHT.
THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND SE 1 FOOT AT
9 SECONDS.
THU NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 6 FT, BUILDING TO 5 TO 8 FT AFTER MIDNIGHT. A CHANCE OF RAIN
AFTER MIDNIGHT.
FRI
NW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
8 FT. A CHANCE OF RAIN.
FRI NIGHT AND SAT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 4 TO 6 FT.
SAT NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 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.
ANZ255-241500-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
1006 PM EDT MON MAR 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON
OVERNIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. WAVE DETAIL: N 4 FT AT 5 SECONDS AND S 4 FT AT
8 SECONDS.
TUE
N WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 4 TO 6 FT. WAVE DETAIL: NE 4 FT AT 8 SECONDS AND
S 4 FT AT 9 SECONDS.
TUE NIGHT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: W 4 FT AT 5 SECONDS
AND NE 4 FT AT 9 SECONDS.
WED
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 3 TO 5 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND E 3 FT AT
9 SECONDS.
WED NIGHT AND THU
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 AND E 2 FT AT
9 SECONDS.
THU NIGHT
SW WINDS 25 TO 30 KT. SEAS 5 TO 8 FT. WAVE DETAIL:
SW 8 FT AT 7 SECONDS AND SE 8 FT AT 9 SECONDS. A CHANCE OF RAIN
AFTER MIDNIGHT.
FRI
NW WINDS 25 TO 30 KT. SEAS 6 TO 9 FT. A CHANCE OF RAIN.
FRI NIGHT
N WINDS 20 TO 25 KT. SEAS 5 TO 7 FT. A CHANCE OF
RAIN AND SNOW.
SAT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT.
SAT NIGHT
W 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.
ANZ256-241500-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
1006 PM EDT MON MAR 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON
OVERNIGHT
N WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. WAVE DETAIL: N
4 FT AT 5 SECONDS AND S 4 FT AT 8 SECONDS.
TUE
N WINDS 15 TO 20 KT, BECOMING NW 5 TO 10 KT IN THE
AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: SE 4 FT AT 9 SECONDS AND
N 3 FT AT 5 SECONDS.
TUE NIGHT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: W 3 FT AT 3 SECONDS
AND SE 3 FT AT 9 SECONDS.
WED
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 3 TO 4 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND E 2 FT AT
9 SECONDS.
WED NIGHT AND THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 5 SECONDS AND SE 2 FT AT
9 SECONDS.
THU NIGHT
SW WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT
AFTER MIDNIGHT. SEAS 5 TO 8 FT. WAVE DETAIL: S 8 FT AT 9 SECONDS
AND SW 7 FT AT 7 SECONDS. RAIN LIKELY AFTER MIDNIGHT.
FRI
NW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
8 FT. RAIN LIKELY.
FRI NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT.
SAT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT.
SAT NIGHT
W 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.
ANZ232-241500-
NANTUCKET SOUND-
1006 PM EDT MON MAR 23 2026
OVERNIGHT
N WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE DETAIL: N
3 FT AT 5 SECONDS AND SE 2 FT AT 9 SECONDS.
TUE
N WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT IN THE
AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: NE 3 FT AT 7 SECONDS AND
N 2 FT AT 3 SECONDS.
TUE NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND
NE 3 FT AT 9 SECONDS.
WED
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND NE 2 FT AT
9 SECONDS.
WED NIGHT AND THU
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 SE 1 FOOT
AT 8 SECONDS.
THU NIGHT
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 S 3 FT AT
8 SECONDS. RAIN LIKELY AFTER MIDNIGHT.
FRI
NW WINDS 20 TO 25 KT. SEAS 3 TO 5 FT. RAIN LIKELY.
FRI NIGHT AND SAT
N WINDS 15 TO 20 KT, DIMINISHING TO 10 TO
15 KT. SEAS 2 TO 4 FT.
SAT NIGHT
W 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.
ANZ233-241500-
VINEYARD SOUND-
1006 PM EDT MON MAR 23 2026
OVERNIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND S 2 FT AT
8 SECONDS.
TUE
N WINDS 10 TO 15 KT, BECOMING NW 5 TO 10 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT AT 3 SECONDS AND
NE 2 FT AT 6 SECONDS.
TUE NIGHT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS
AND NE 2 FT AT 8 SECONDS.
WED
W WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS.
WED NIGHT AND THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 1 FOOT
AT 8 SECONDS.
THU NIGHT
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. RAIN LIKELY AFTER
MIDNIGHT.
FRI
NW WINDS 20 TO 25 KT. SEAS 4 TO 6 FT. RAIN LIKELY.
FRI NIGHT AND SAT
N WINDS 15 TO 20 KT. SEAS 2 TO 4 FT.
SAT NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 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.
ANZ234-241500-
BUZZARDS BAY-
1006 PM EDT MON MAR 23 2026
OVERNIGHT
N WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL:
N 2 FT AT 4 SECONDS AND S 2 FT AT 8 SECONDS.
TUE
N WINDS 10 TO 15 KT, BECOMING W 5 TO 10 KT IN THE
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND
S 2 FT AT 8 SECONDS.
TUE NIGHT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT
4 SECONDS AND NE 2 FT AT 7 SECONDS.
WED
W WINDS 5 TO 10 KT, BECOMING SW 15 TO 20 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND
E 2 FT AT 9 SECONDS.
WED NIGHT AND THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 1 FOOT
AT 8 SECONDS.
THU NIGHT
SW WINDS 20 TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S
5 FT AT 7 SECONDS. RAIN LIKELY AFTER MIDNIGHT.
FRI
NW WINDS 20 TO 25 KT. SEAS 3 TO 5 FT. RAIN LIKELY.
FRI NIGHT THROUGH SAT NIGHT
W 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.
ANZ235-241500-
RHODE ISLAND SOUND-
1006 PM EDT MON MAR 23 2026
OVERNIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 4 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS AND N 3 FT AT
4 SECONDS.
TUE
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING W
5 TO 10 KT IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SE 4 FT
AT 8 SECONDS AND N 2 FT AT 4 SECONDS.
TUE NIGHT
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 3 FT AT
8 SECONDS.
WED
SW 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 SE 2 FT AT
8 SECONDS.
WED NIGHT AND THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 1 FOOT
AT 8 SECONDS.
THU NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 7 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND S 6 FT AT
9 SECONDS. RAIN LIKELY AFTER MIDNIGHT.
FRI
NW WINDS 20 TO 25 KT. SEAS 5 TO 7 FT. RAIN LIKELY.
FRI NIGHT
N WINDS 15 TO 20 KT. SEAS 3 TO 5 FT.
SAT AND SAT NIGHT
NW WINDS 15 TO 20 KT, BECOMING W. 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.
ANZ237-241500-
BLOCK ISLAND SOUND-
1006 PM EDT MON MAR 23 2026
OVERNIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS AND N 2 FT AT 4 SECONDS.
TUE
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING SW
5 TO 10 KT IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SE 4 FT
AT 9 SECONDS AND NW 2 FT AT 3 SECONDS.
TUE NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 9 SECONDS AND SW 2 FT AT
3 SECONDS.
WED
W WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT
4 SECONDS AND SE 2 FT AT 9 SECONDS.
WED NIGHT AND THU
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 SE 1 FOOT
AT 8 SECONDS.
THU NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 6 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND S 4 FT AT
8 SECONDS. RAIN LIKELY AFTER MIDNIGHT.
FRI
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. RAIN LIKELY.
FRI NIGHT AND SAT
N WINDS 15 TO 20 KT, BECOMING NW 10 TO
15 KT. SEAS 2 TO 4 FT.
SAT NIGHT
W 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.
ANZ230-241500-
BOSTON HARBOR-
1006 PM EDT MON MAR 23 2026
OVERNIGHT
N WINDS 10 TO 15 KT. WAVES AROUND 2 FT. A SLIGHT
CHANCE OF RAIN AND SNOW.
TUE
N WINDS 10 TO 15 KT, BECOMING SW 5 TO 10 KT IN THE
AFTERNOON. WAVES AROUND 2 FT IN THE MORNING, THEN 1 FOOT OR LESS.
AT THE OUTER HARBOR ENTRANCE, WAVES 2 TO 4 FT.
TUE NIGHT
SW WINDS 10 TO 15 KT. WAVES AROUND 2 FT.
WED
W WINDS 5 TO 10 KT, BECOMING SW 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.
WED NIGHT AND THU
SW WINDS 15 TO 20 KT. WAVES AROUND 2 FT. A
CHANCE OF RAIN THROUGH THE DAY.
THU NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES
AROUND 2 FT. A CHANCE OF RAIN IN THE EVENING, THEN RAIN LIKELY
AFTER MIDNIGHT.
FRI
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES AROUND
2 FT. RAIN LIKELY.
FRI NIGHT THROUGH SAT NIGHT
W 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.
ANZ236-241500-
NARRAGANSETT BAY-
1006 PM EDT MON MAR 23 2026
OVERNIGHT
N WINDS AROUND 10 KT. WAVES 2 TO 3 FT.
TUE
N WINDS 5 TO 10 KT, BECOMING NW IN THE AFTERNOON. WAVES
2 TO 3 FT.
TUE NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. WAVES AROUND 2 FT.
WED
W WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. WAVES 2 TO 3 FT.
WED NIGHT AND THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
WAVES 2 TO 3 FT.
THU NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES
3 TO 5 FT. A CHANCE OF RAIN IN THE EVENING, THEN RAIN LIKELY
AFTER MIDNIGHT.
FRI
NW WINDS 15 TO 20 KT. WAVES 3 TO 5 FT. RAIN LIKELY.
FRI NIGHT THROUGH SAT NIGHT
W WINDS 10 TO 15 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.
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