325
FZUS51 KBOX 250804
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
404 AM EDT MON MAY 25 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-252100-
404 AM EDT MON MAY 25 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
LOW PRES LIFTS INTO THE GULF OF MAINE TODAY. WEAK HIGH PRES FOLLOWS
TUE, THEN A COLD FRONT WILL MOVE INTO THE REGION FROM THE N WED
AFTERNOON/EVENING. LOW PRESSURE OVER THE WATERS ON WEDNESDAY INTO
THURSDAY THEN ANOTHER LIKELY CROSSES THE WATERS NEXT WEEKEND.
ANZ250-252100-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
404 AM EDT MON MAY 25 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
TODAY
S WINDS 5 TO 10 KT, BECOMING W THIS AFTERNOON. SEAS 4 TO
6 FT. WAVE DETAIL: SE 6 FT AT 8 SECONDS AND S 1 FOOT AT
4 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS AROUND 5 KT, BECOMING NW AFTER MIDNIGHT. SEAS
3 TO 5 FT. WAVE DETAIL: SE 5 FT AT 8 SECONDS AND SW 1 FOOT AT
4 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS, INCREASING TO 1 TO 3 NM
AFTER MIDNIGHT.
TUE
NW WINDS AROUND 5 KT, BECOMING S 10 TO 15 KT IN THE
AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SE 4 FT AT 8 SECONDS.
TUE NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 4 FT. WAVE DETAIL: SE 3 FT AT 8 SECONDS AND S 2 FT AT
3 SECONDS.
WED
SW WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND
SE 2 FT AT 7 SECONDS.
WED NIGHT
NW WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: NW 2 FT AT 3 SECONDS AND SE 2 FT AT
7 SECONDS.
THU THROUGH FRI
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
FRI NIGHT
SW WINDS 10 TO 15 KT. SEAS 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.
ANZ251-252100-
MASSACHUSETTS BAY AND IPSWICH BAY-
404 AM EDT MON MAY 25 2026
TODAY
S WINDS AROUND 5 KT, BECOMING W AROUND 5 KT THIS
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 7 SECONDS AND S
1 FOOT AT 4 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS AROUND 5 KT, BECOMING NW AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: E 3 FT AT 8 SECONDS AND SW 1 FOOT AT
2 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM IN THE EVENING.
TUE
W WINDS AROUND 5 KT, BECOMING S 10 TO 15 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 8 SECONDS.
TUE NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 8 SECONDS AND S 2 FT AT 3 SECONDS.
WED
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT
AT 3 SECONDS AND E 2 FT AT 7 SECONDS. A CHANCE OF SHOWERS IN THE
AFTERNOON.
WED NIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
W 1 FOOT AT 2 SECONDS AND E 1 FOOT AT 7 SECONDS. A CHANCE OF
SHOWERS IN THE EVENING.
THU AND THU NIGHT
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT, THEN
1 FOOT OR LESS.
FRI AND FRI NIGHT
NE WINDS 5 TO 10 KT, BECOMING SW 10 TO
15 KT. SEAS 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.
ANZ231-252100-
CAPE COD BAY-
404 AM EDT MON MAY 25 2026
TODAY
S WINDS 5 TO 10 KT, BECOMING SW THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SE 1 FOOT AT 3 SECONDS. PATCHY FOG.
SHOWERS. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 2 SECONDS AND E 1 FOOT AT
5 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM.
TUE
N WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 2 SECONDS AND E 1 FOOT AT
6 SECONDS. PATCHY FOG IN THE MORNING.
TUE NIGHT
SW WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 1 FOOT AT 2 SECONDS AND E 1 FOOT AT 6 SECONDS.
WED
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW
1 FOOT AT 2 SECONDS AND SE 1 FOOT AT 7 SECONDS. A CHANCE OF
SHOWERS IN THE AFTERNOON.
WED NIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
1 FOOT OR LESS, THEN AROUND 2 FT AFTER MIDNIGHT. WAVE DETAIL: W
1 FOOT AT 2 SECONDS AND SE 1 FOOT AT 6 SECONDS, BECOMING NW
1 FOOT AT 3 SECONDS AND E 1 FOOT AT 8 SECONDS. A CHANCE OF
SHOWERS IN THE EVENING.
THU THROUGH FRI
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
FRI NIGHT
SW WINDS 5 TO 10 KT. SEAS 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.
ANZ254-252100-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
404 AM EDT MON MAY 25 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
TODAY
S WINDS 10 TO 15 KT, BECOMING SW THIS AFTERNOON. GUSTS
UP TO 20 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SE 7 FT AT 8 SECONDS
AND S 1 FOOT AT 8 SECONDS. PATCHY FOG. SHOWERS LIKELY. A SLIGHT
CHANCE OF TSTMS THIS MORNING. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 10 TO 15 KT, BECOMING NW 5 TO 10 KT AFTER
MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: SE 5 FT AT 8 SECONDS AND
SW 1 FOOT AT 5 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TUE
N WINDS AROUND 5 KT, BECOMING SW IN THE AFTERNOON. SEAS
3 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS. PATCHY FOG. VSBY
1 NM OR LESS.
TUE NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 4 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND SE 3 FT AT
8 SECONDS.
WED
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SW 3 FT AT 6 SECONDS AND SE 3 FT AT 7 SECONDS.
WED NIGHT
W WINDS 10 TO 15 KT, BECOMING N AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: W 3 FT AT 6 SECONDS AND SE 2 FT AT
7 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
THU THROUGH FRI
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT.
FRI NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 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.
ANZ255-252100-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
404 AM EDT MON MAY 25 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
TODAY
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 5 TO
7 FT. WAVE DETAIL: SE 6 FT AT 9 SECONDS AND S 3 FT AT 4 SECONDS.
PATCHY FOG. SHOWERS. A SLIGHT CHANCE OF TSTMS THIS MORNING. VSBY
1 NM OR LESS.
TONIGHT
W WINDS 10 TO 15 KT, BECOMING NW 5 TO 10 KT AFTER
MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: SE 5 FT AT 8 SECONDS AND
SW 5 FT AT 12 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TUE
N WINDS AROUND 5 KT, BECOMING SW IN THE AFTERNOON. SEAS
3 TO 4 FT. WAVE DETAIL: SE 4 FT AT 8 SECONDS AND SW 2 FT AT
7 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TUE NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL:
SW 4 FT AT 7 SECONDS AND SE 3 FT AT 8 SECONDS. PATCHY FOG IN THE
EVENING WITH VSBY 1 TO 3 NM.
WED
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS.
WED NIGHT
W 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
7 SECONDS AND E 1 FOOT AT 8 SECONDS. A CHANCE OF SHOWERS IN THE
EVENING.
THU THROUGH FRI
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT.
FRI NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 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.
ANZ256-252100-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
404 AM EDT MON MAY 25 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
TODAY
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 5 TO
7 FT. WAVE DETAIL: SE 6 FT AT 9 SECONDS AND SW 6 FT AT
11 SECONDS. PATCHY DENSE FOG THIS MORNING. PATCHY FOG THIS
AFTERNOON. SHOWERS. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 10 TO 15 KT, BECOMING NW 5 TO 10 KT AFTER
MIDNIGHT. SEAS 4 TO 5 FT. WAVE DETAIL: SE 5 FT AT 8 SECONDS AND W
5 FT AT 16 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS, INCREASING TO
1 TO 3 NM AFTER MIDNIGHT.
TUE
N WINDS AROUND 5 KT, BECOMING SW IN THE AFTERNOON. SEAS
3 TO 5 FT. WAVE DETAIL: SE 4 FT AT 8 SECONDS AND S 2 FT AT
7 SECONDS.
TUE NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
3 FT AT 8 SECONDS AND SE 3 FT AT 8 SECONDS.
WED
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
NW AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT AT
7 SECONDS AND SE 2 FT AT 8 SECONDS.
THU THROUGH FRI
W WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
FRI NIGHT
SW 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.
ANZ232-252100-
NANTUCKET SOUND-
404 AM EDT MON MAY 25 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT EARLY THIS
MORNING...
TODAY
S WINDS 10 TO 15 KT, BECOMING SW THIS AFTERNOON. GUSTS
UP TO 20 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS.
PATCHY FOG. SHOWERS LIKELY, MAINLY THIS MORNING. VSBY 1 NM OR
LESS.
TONIGHT
W WINDS 10 TO 15 KT, BECOMING NW 5 TO 10 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND E
2 FT AT 8 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS, INCREASING TO
1 TO 3 NM AFTER MIDNIGHT.
TUE
N WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: E 2 FT AT 7 SECONDS AND SW 1 FOOT AT
7 SECONDS.
TUE NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL:
SW 2 FT AT 4 SECONDS AND E 1 FOOT AT 7 SECONDS.
WED
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE 1 FOOT
AT 7 SECONDS.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT
4 SECONDS AND SE 1 FOOT AT 7 SECONDS. A CHANCE OF SHOWERS IN THE
EVENING.
THU THROUGH FRI
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 2 FT.
FRI NIGHT
SW WINDS 10 TO 15 KT. SEAS 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.
ANZ233-252100-
VINEYARD SOUND-
404 AM EDT MON MAY 25 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT EARLY THIS
MORNING...
TODAY
SW WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S
3 FT AT 7 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 10 TO 15 KT, BECOMING NW 5 TO 10 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS.
PATCHY FOG. VSBY 1 TO 3 NM IN THE EVENING.
TUE
N WINDS AROUND 5 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS.
TUE NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 7 SECONDS.
WED
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT
6 SECONDS AND SE 1 FOOT AT 7 SECONDS. A CHANCE OF SHOWERS IN THE
EVENING.
THU THROUGH FRI
W WINDS 10 TO 15 KT. SEAS AROUND 2 FT.
FRI NIGHT
SW WINDS 10 TO 15 KT. SEAS 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.
ANZ234-252100-
BUZZARDS BAY-
404 AM EDT MON MAY 25 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT EARLY THIS
MORNING...
TODAY
S WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT WITH GUSTS
UP TO 20 KT THIS AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT
AT 7 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE 2 FT AT
7 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM IN THE EVENING.
TUE
N WINDS AROUND 5 KT, BECOMING SW 10 TO 15 KT IN THE
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT AT 6 SECONDS.
TUE NIGHT
SW WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 4 SECONDS AND SE 1 FOOT 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 2 FT AT 4 SECONDS AND S 1 FOOT AT
7 SECONDS.
WED NIGHT
W 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: S
2 FT AT 6 SECONDS.
THU THROUGH FRI
W WINDS 10 TO 15 KT. SEAS AROUND 2 FT.
FRI NIGHT
SW WINDS 10 TO 15 KT. SEAS 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.
ANZ235-252100-
RHODE ISLAND SOUND-
404 AM EDT MON MAY 25 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT EARLY THIS
MORNING...
TODAY
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SE
6 FT AT 9 SECONDS AND SW 3 FT AT 7 SECONDS. PATCHY FOG. A CHANCE
OF SHOWERS THIS MORNING, THEN SHOWERS THIS AFTERNOON. VSBY 1 NM
OR LESS.
TONIGHT
SW WINDS 10 TO 15 KT, BECOMING NW 5 TO 10 KT AFTER
MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: SE 5 FT AT 8 SECONDS AND
SW 3 FT AT 11 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM.
TUE
N WINDS AROUND 5 KT, BECOMING SW 10 TO 15 KT IN THE
AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SE 4 FT AT 8 SECONDS AND
S 2 FT AT 7 SECONDS.
TUE NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL:
SW 3 FT AT 7 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: S 3 FT AT 7 SECONDS.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
NW AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT
7 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
THU AND THU NIGHT
N WINDS 10 TO 15 KT, DIMINISHING TO 5 TO
10 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
FRI
W WINDS 10 TO 15 KT. SEAS AROUND 2 FT.
FRI NIGHT
SW WINDS 10 TO 15 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.
ANZ237-252100-
BLOCK ISLAND SOUND-
404 AM EDT MON MAY 25 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT EARLY THIS
MORNING...
TODAY
S WINDS 5 TO 10 KT, BECOMING SW THIS AFTERNOON. SEAS
4 TO 6 FT. WAVE DETAIL: SE 6 FT AT 9 SECONDS AND SW 2 FT AT
9 SECONDS. PATCHY DENSE FOG THIS MORNING. PATCHY FOG THIS
AFTERNOON. SHOWERS. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
3 TO 5 FT. WAVE DETAIL: SE 4 FT AT 8 SECONDS AND SW 2 FT AT
9 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM.
TUE
N WINDS AROUND 5 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 4 FT. WAVE DETAIL: SE 4 FT AT 8 SECONDS AND S 2 FT AT
7 SECONDS.
TUE NIGHT
SW WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL:
SW 3 FT AT 7 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 7 SECONDS AND SE 2 FT AT
8 SECONDS.
WED NIGHT
W WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: W 3 FT AT 6 SECONDS AND SE 2 FT AT
7 SECONDS.
THU AND THU NIGHT
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A CHANCE
OF SHOWERS.
FRI
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
FRI NIGHT
SW WINDS AROUND 10 KT. SEAS 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.
ANZ230-252100-
BOSTON HARBOR-
404 AM EDT MON MAY 25 2026
TODAY
S WINDS AROUND 5 KT, BECOMING W AROUND 5 KT THIS
AFTERNOON. WAVES 1 FOOT OR LESS. PATCHY FOG. SHOWERS. VSBY 1 NM
OR LESS, INCREASING TO 1 TO 3 NM THIS AFTERNOON.
TONIGHT
SW WINDS AROUND 5 KT, BECOMING NW AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS. PATCHY FOG. VSBY 1 TO 3 NM.
TUE
W WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
TUE NIGHT
SW WINDS AROUND 10 KT. WAVES AROUND 2 FT.
WED
W WINDS AROUND 10 KT. WAVES 1 FOOT OR LESS, THEN AROUND
2 FT IN THE AFTERNOON. A CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. A CHANCE
OF SHOWERS IN THE EVENING.
THU
N WINDS AROUND 10 KT. WAVES AROUND 2 FT. A CHANCE OF
SHOWERS.
THU NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
FRI AND FRI NIGHT
NE WINDS 5 TO 10 KT, BECOMING SW. WAVES
1 FOOT OR LESS. 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.
ANZ236-252100-
NARRAGANSETT BAY-
404 AM EDT MON MAY 25 2026
TODAY
S WINDS 5 TO 10 KT, BECOMING SW THIS AFTERNOON. WAVES
2 TO 4 FT. PATCHY FOG. A CHANCE OF SHOWERS THIS MORNING, THEN
SHOWERS LIKELY THIS AFTERNOON. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. WAVES
2 TO 3 FT. PATCHY FOG. VSBY 1 TO 3 NM.
TUE
N WINDS AROUND 5 KT, BECOMING S 10 TO 15 KT IN THE
AFTERNOON. WAVES AROUND 2 FT.
TUE NIGHT
SW WINDS AROUND 10 KT. WAVES AROUND 2 FT.
WED
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. WAVES AROUND 2 FT.
WED NIGHT
W WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT.
WAVES AROUND 2 FT.
THU AND THU NIGHT
N WINDS 5 TO 10 KT. WAVES AROUND 2 FT. A
CHANCE OF SHOWERS.
FRI
W WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
FRI NIGHT
SW WINDS AROUND 10 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.
ANZ280-252100-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
404 AM EDT MON MAY 25 2026
TODAY
S WINDS 15 TO 20 KT, BECOMING SW 10 TO 15 KT THIS
AFTERNOON. GUSTS UP TO 25 KT. SEAS 6 TO 8 FT. WAVE DETAIL: SE
8 FT AT 8 SECONDS AND S 1 FOOT AT 5 SECONDS. PATCHY FOG. SHOWERS.
VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
4 TO 6 FT. WAVE DETAIL: SE 6 FT AT 8 SECONDS AND SW 1 FOOT AT
4 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TUE
NW WINDS AROUND 5 KT, BECOMING SW IN THE AFTERNOON. SEAS
4 TO 5 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS.
TUE NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
AROUND 4 FT. WAVE DETAIL: SE 4 FT AT 8 SECONDS AND S 3 FT AT
5 SECONDS.
WED
W 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: W 3 FT
AT 6 SECONDS AND SE 3 FT AT 7 SECONDS.
WED NIGHT
W WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 7 SECONDS AND NW 2 FT AT 3 SECONDS.
THU THROUGH FRI
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT.
FRI NIGHT
SW 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.
ANZ281-252100-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
404 AM EDT MON MAY 25 2026
TODAY
S WINDS 15 TO 20 KT, BECOMING SW THIS AFTERNOON. GUSTS
UP TO 25 KT. SEAS 6 TO 8 FT. WAVE DETAIL: SE 8 FT AT 8 SECONDS
AND SW 2 FT AT 9 SECONDS. PATCHY FOG. SHOWERS. A SLIGHT CHANCE OF
TSTMS THIS MORNING. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
W 5 TO 10 KT AFTER MIDNIGHT. SEAS 5 TO 6 FT. WAVE DETAIL: SE 6 FT
AT 8 SECONDS AND SW 2 FT AT 8 SECONDS. PATCHY FOG. A CHANCE OF
SHOWERS IN THE EVENING. VSBY 1 NM OR LESS.
TUE
N WINDS AROUND 5 KT, BECOMING W IN THE AFTERNOON. SEAS
4 TO 5 FT. WAVE DETAIL: SE 5 FT AT 8 SECONDS AND SW 3 FT AT
7 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TUE NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 4 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND SE 3 FT AT
8 SECONDS. PATCHY FOG IN THE EVENING WITH VSBY 1 NM OR LESS.
WED
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS.
WED NIGHT
SW WINDS 10 TO 15 KT, BECOMING NW AFTER MIDNIGHT.
SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND SE 2 FT AT
9 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
THU THROUGH FRI
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 3 FT.
FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 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.
ANZ282-252100-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
404 AM EDT MON MAY 25 2026
TODAY
SW WINDS AROUND 15 KT WITH GUSTS UP TO 25 KT. SEAS 6 TO
8 FT. WAVE DETAIL: SE 7 FT AT 8 SECONDS AND SW 3 FT AT 5 SECONDS.
PATCHY FOG. SHOWERS. A SLIGHT CHANCE OF TSTMS THIS MORNING. VSBY
1 NM OR LESS.
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
W 5 TO 10 KT AFTER MIDNIGHT. SEAS 5 TO 6 FT. WAVE DETAIL: S 6 FT
AT 7 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS. VSBY 1 NM OR LESS.
TUE
N WINDS AROUND 5 KT, BECOMING NW IN THE AFTERNOON. SEAS
4 TO 5 FT. WAVE DETAIL: SE 4 FT AT 8 SECONDS AND SW 3 FT AT
7 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TUE NIGHT
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS AROUND 4 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS AND
SE 3 FT AT 7 SECONDS. PATCHY FOG IN THE EVENING WITH VSBY 1 NM OR
LESS.
WED
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS AROUND 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS.
WED NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING NW AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT
AT 7 SECONDS AND SE 2 FT AT 8 SECONDS.
THU THROUGH FRI
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 3 TO 4 FT.
FRI NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 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.
ANZ283-252100-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
404 AM EDT MON MAY 25 2026
TODAY
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 6 TO
7 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND SE 6 FT AT 9 SECONDS.
PATCHY FOG. SHOWERS. VSBY 1 NM OR LESS.
TONIGHT
W WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. SEAS 5 TO 6 FT. WAVE DETAIL: SE 5 FT AT 8 SECONDS AND
SW 4 FT AT 8 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS IN THE
EVENING. VSBY 1 NM OR LESS.
TUE
N WINDS AROUND 5 KT, BECOMING W IN THE AFTERNOON. SEAS
4 TO 5 FT. WAVE DETAIL: SE 4 FT AT 8 SECONDS AND S 3 FT AT
7 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TUE NIGHT
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS AROUND 4 FT. WAVE DETAIL: S 3 FT AT 8 SECONDS AND
SE 3 FT AT 8 SECONDS. PATCHY FOG IN THE EVENING WITH VSBY 1 TO
3 NM.
WED
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS AROUND 4 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS.
WED NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING NW AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: SW 3 FT
AT 7 SECONDS AND SE 2 FT AT 9 SECONDS.
THU THROUGH FRI
NW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 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.
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