610
FZUS51 KBOX 230505
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
104 AM EDT SAT MAY 23 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-231800-
104 AM EDT SAT MAY 23 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
HIGH PRESSURE MOVES OFFSHORE SATURDAY, THEN A WARM FRONT AND LOW
PRESSURE SYSTEM APPROACHES THE WATERS FROM THE SOUTH ON SUNDAY. IT
MAY BRING NEAR GALE FORCE WIND GUSTS FOR THE FAR OUTER WATERS SOUTH
OF BLOCK ISLAND AND NANTUCKET. THE LOW PRESSURE LIFTS NORTHEAST
ACROSS THE WATERS SUNDAY NIGHT THEN INTO THE GULF OF MAINE MONDAY.
WEAK HIGH PRES FOLLOWS TUESDAY THEN A COLD FRONT WILL MOVE INTO THE
REGION FROM THE NORTH WEDNESDAY AFTERNOON/EVENING.
ANZ250-231800-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
104 AM EDT SAT MAY 23 2026
REST OF TONIGHT
W WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: NW 1 FOOT AT 2 SECONDS AND S 1 FOOT AT 3 SECONDS.
SAT
NE WINDS AROUND 5 KT, BECOMING E IN THE AFTERNOON. SEAS
1 FOOT OR LESS, THEN AROUND 2 FT IN THE AFTERNOON. WAVE DETAIL:
NW 1 FOOT AT 2 SECONDS AND NE 1 FOOT AT 3 SECONDS, BECOMING NW
1 FOOT AT 2 SECONDS AND E 1 FOOT AT 3 SECONDS.
SAT NIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SE 2 FT AT 3 SECONDS AND SE 1 FOOT AT 10 SECONDS.
SUN
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SE 4 FT AT 4 SECONDS AND N 1 FOOT AT
3 SECONDS. A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS IN
THE AFTERNOON. PATCHY FOG IN THE AFTERNOON WITH VSBY 1 TO 3 NM.
SUN NIGHT
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. WAVE DETAIL: SE 6 FT AT 6 SECONDS. SHOWERS. PATCHY FOG
IN THE EVENING WITH VSBY 1 TO 3 NM.
MON
SW WINDS 5 TO 10 KT, BECOMING NW IN THE AFTERNOON. SEAS
4 TO 6 FT. WAVE DETAIL: SE 6 FT AT 8 SECONDS AND E 3 FT AT
7 SECONDS. SHOWERS LIKELY, MAINLY IN THE MORNING.
MON NIGHT
SW WINDS AROUND 5 KT. SEAS 3 TO 5 FT.
TUE AND TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW. 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.
ANZ251-231800-
MASSACHUSETTS BAY AND IPSWICH BAY-
104 AM EDT SAT MAY 23 2026
REST OF TONIGHT
W WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: S 1 FOOT AT 3 SECONDS AND NE 1 FOOT AT 4 SECONDS.
SAT
NE WINDS AROUND 5 KT, BECOMING E IN THE AFTERNOON. SEAS
1 FOOT OR LESS. WAVE DETAIL: S 1 FOOT AT 3 SECONDS AND NE 1 FOOT
AT 4 SECONDS.
SAT NIGHT
SE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: SE 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 10 SECONDS.
SUN
SE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT
AT 4 SECONDS AND SE 3 FT AT 10 SECONDS. PATCHY FOG. A CHANCE OF
SHOWERS IN THE MORNING, THEN SHOWERS IN THE AFTERNOON WITH VSBY
1 TO 3 NM.
SUN NIGHT
SE WINDS 15 TO 20 KT, BECOMING E 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SE 4 FT
AT 6 SECONDS. SHOWERS. PATCHY FOG IN THE EVENING WITH VSBY 1 TO
3 NM.
MON
N WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SE 4 FT
AT 6 SECONDS AND NW 1 FOOT AT 2 SECONDS. A CHANCE OF SHOWERS.
MON NIGHT
S WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
2 TO 3 FT.
TUE AND TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
WED AND WED NIGHT
W WINDS 5 TO 10 KT, BECOMING NW. 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.
ANZ231-231800-
CAPE COD BAY-
104 AM EDT SAT MAY 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
SUNDAY NIGHT...
REST OF TONIGHT
W WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: N 1 FOOT AT 4 SECONDS AND S 1 FOOT AT 6 SECONDS.
SAT
NE WINDS AROUND 5 KT, BECOMING E IN THE AFTERNOON. SEAS
1 FOOT OR LESS. WAVE DETAIL: N 1 FOOT AT 4 SECONDS AND S 1 FOOT
AT 7 SECONDS.
SAT NIGHT
SE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS, THEN
AROUND 2 FT AFTER MIDNIGHT. WAVE DETAIL: E 1 FOOT AT 2 SECONDS
AND N 1 FOOT AT 3 SECONDS, BECOMING E 2 FT AT 9 SECONDS AND SE
1 FOOT AT 3 SECONDS.
SUN
SE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
3 FT AT 5 SECONDS AND N 1 FOOT AT 3 SECONDS. PATCHY FOG. SHOWERS.
VSBY 1 TO 3 NM IN THE AFTERNOON.
SUN NIGHT
SE WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL:
SE 4 FT AT 5 SECONDS. SHOWERS. PATCHY FOG IN THE EVENING WITH
VSBY 1 TO 3 NM.
MON
SW WINDS 5 TO 10 KT, BECOMING NW IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: E 2 FT AT 4 SECONDS AND S 2 FT AT
5 SECONDS. SHOWERS LIKELY, MAINLY IN THE MORNING.
MON NIGHT
W WINDS AROUND 5 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS IN THE EVENING.
TUE AND TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
WED
W WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. A CHANCE OF
SHOWERS.
WED NIGHT
NW WINDS 5 TO 10 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.
ANZ254-231800-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
104 AM EDT SAT MAY 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
SUNDAY NIGHT...
REST OF TONIGHT
NE WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE
DETAIL: N 1 FOOT AT 4 SECONDS AND S 1 FOOT AT 6 SECONDS.
SAT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: N
1 FOOT AT 4 SECONDS AND S 1 FOOT AT 6 SECONDS.
SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING SE 10 TO 15 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND
SE 2 FT AT 8 SECONDS.
SUN
SE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT, BUILDING TO 4 TO
6 FT IN THE AFTERNOON. WAVE DETAIL: SE 4 FT AT 7 SECONDS AND E
3 FT AT 4 SECONDS, BECOMING SE 6 FT AT 5 SECONDS AND S 1 FOOT AT
10 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM IN THE AFTERNOON.
SUN NIGHT
SE WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT
AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS 5 TO 8 FT. WAVE DETAIL:
SE 8 FT AT 8 SECONDS AND E 3 FT AT 4 SECONDS. SHOWERS. PATCHY FOG
IN THE EVENING WITH VSBY 1 TO 3 NM.
MON
S WINDS 10 TO 15 KT, BECOMING W 5 TO 10 KT IN THE
AFTERNOON. SEAS 5 TO 7 FT. WAVE DETAIL: SE 7 FT AT 8 SECONDS AND
NE 2 FT AT 8 SECONDS. SHOWERS LIKELY, MAINLY IN THE MORNING.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. A CHANCE OF
SHOWERS IN THE EVENING.
TUE THROUGH WED NIGHT
NW WINDS 5 TO 10 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.
ANZ255-231800-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
104 AM EDT SAT MAY 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
SUNDAY NIGHT...
REST OF TONIGHT
E WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE
DETAIL: NE 2 FT AT 4 SECONDS AND S 1 FOOT AT 6 SECONDS.
SAT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 2 FT AT
4 SECONDS AND SE 2 FT AT 9 SECONDS.
SAT NIGHT
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: NE 4 FT AT 4 SECONDS AND
SE 4 FT AT 8 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
SUN
E WINDS 15 TO 20 KT, BECOMING SE 20 TO 25 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 4 TO 6 FT, BUILDING TO 5 TO
8 FT IN THE AFTERNOON. WAVE DETAIL: SE 6 FT AT 8 SECONDS AND E
4 FT AT 4 SECONDS, BECOMING SE 8 FT AT 9 SECONDS AND E 4 FT AT
4 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM IN THE AFTERNOON.
SUN NIGHT
SE WINDS 20 TO 25 KT, BECOMING S 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 7 TO 9 FT, SUBSIDING TO 5 TO
8 FT AFTER MIDNIGHT. WAVE DETAIL: SE 9 FT AT 9 SECONDS AND E 5 FT
AT 5 SECONDS, BECOMING S 8 FT AT 8 SECONDS AND NE 2 FT AT
9 SECONDS. SHOWERS. PATCHY FOG IN THE EVENING WITH VSBY 1 TO
3 NM.
MON
SW WINDS AROUND 10 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SE
6 FT AT 8 SECONDS AND S 4 FT AT 7 SECONDS. SHOWERS LIKELY, MAINLY
IN THE MORNING.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. A CHANCE OF
SHOWERS.
TUE THROUGH WED NIGHT
NW WINDS 10 TO 15 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.
ANZ256-231800-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
104 AM EDT SAT MAY 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
SUNDAY NIGHT...
REST OF TONIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: NE 2 FT AT 3 SECONDS AND SE 2 FT AT 9 SECONDS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SE 4 FT AT 7 SECONDS AND NE 3 FT AT 4 SECONDS.
SAT NIGHT
E WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SE 6 FT
AT 8 SECONDS AND NE 5 FT AT 4 SECONDS. PATCHY FOG AFTER MIDNIGHT.
A CHANCE OF SHOWERS AFTER MIDNIGHT.
SUN
SE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
8 FT, BUILDING TO 7 TO 9 FT IN THE AFTERNOON. WAVE DETAIL: SE
8 FT AT 9 SECONDS AND E 6 FT AT 5 SECONDS, BECOMING SE 9 FT AT
9 SECONDS AND NE 7 FT AT 5 SECONDS. PATCHY FOG. SHOWERS. VSBY
1 TO 3 NM.
SUN NIGHT
SE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT,
BECOMING S 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT.
SEAS 6 TO 9 FT. WAVE DETAIL: SE 9 FT AT 9 SECONDS AND NE 6 FT AT
10 SECONDS. SHOWERS. PATCHY FOG IN THE EVENING WITH VSBY 1 TO
3 NM.
MON
SW WINDS 5 TO 10 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SE 6 FT
AT 8 SECONDS AND W 2 FT AT 10 SECONDS. SHOWERS LIKELY, MAINLY IN
THE MORNING.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 4 TO 5 FT. A CHANCE OF
SHOWERS.
TUE THROUGH WED NIGHT
NW WINDS 10 TO 15 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.
ANZ232-231800-
NANTUCKET SOUND-
104 AM EDT SAT MAY 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
SUNDAY NIGHT...
REST OF TONIGHT
E WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: NE 1 FOOT AT 4 SECONDS AND S 1 FOOT AT 6 SECONDS.
SAT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: E
1 FOOT AT 4 SECONDS AND N 1 FOOT AT 4 SECONDS.
SAT NIGHT
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT AT 3 SECONDS AND
N 1 FOOT AT 4 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
SUN
SE WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT IN THE
AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: SE 4 FT AT 5 SECONDS AND
SW 2 FT AT 9 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM IN THE
AFTERNOON.
SUN NIGHT
SE WINDS 20 TO 25 KT, BECOMING S 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SE 5 FT
AT 6 SECONDS AND SW 2 FT AT 8 SECONDS. SHOWERS. PATCHY FOG IN THE
EVENING WITH VSBY 1 TO 3 NM.
MON
SW WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. SEAS
2 TO 4 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND W 1 FOOT AT
4 SECONDS. SHOWERS LIKELY, MAINLY IN THE MORNING.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS IN THE EVENING.
TUE THROUGH WED NIGHT
NW WINDS 5 TO 10 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.
ANZ233-231800-
VINEYARD SOUND-
104 AM EDT SAT MAY 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
SUNDAY NIGHT...
REST OF TONIGHT
E WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: NE 1 FOOT AT 3 SECONDS AND S 1 FOOT AT 7 SECONDS.
SAT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT
AT 11 SECONDS AND NE 1 FOOT AT 3 SECONDS.
SAT NIGHT
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT AT 8 SECONDS AND E
1 FOOT AT 2 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
SUN
E WINDS 15 TO 20 KT, BECOMING SE 20 TO 25 KT IN THE
AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: SE 5 FT AT 8 SECONDS AND
SW 4 FT AT 9 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM IN THE
AFTERNOON.
SUN NIGHT
SE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT,
BECOMING S 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT.
SEAS 4 TO 6 FT. WAVE DETAIL: SE 6 FT AT 8 SECONDS AND S 3 FT AT
10 SECONDS. SHOWERS. PATCHY FOG IN THE EVENING WITH VSBY 1 TO
3 NM.
MON
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT
AT 7 SECONDS AND SW 2 FT AT 7 SECONDS. SHOWERS LIKELY, MAINLY IN
THE MORNING.
MON NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS IN THE EVENING.
TUE THROUGH WED NIGHT
NW 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.
ANZ234-231800-
BUZZARDS BAY-
104 AM EDT SAT MAY 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
SUNDAY NIGHT...
REST OF TONIGHT
E WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: NE 1 FOOT AT 3 SECONDS AND S 1 FOOT AT 6 SECONDS.
SAT
E WINDS 5 TO 10 KT, BECOMING SE IN THE AFTERNOON. SEAS
1 FOOT OR LESS, THEN AROUND 2 FT IN THE AFTERNOON. WAVE DETAIL:
NE 1 FOOT AT 3 SECONDS AND S 1 FOOT AT 7 SECONDS, BECOMING E
1 FOOT AT 2 SECONDS AND N 1 FOOT AT 4 SECONDS.
SAT NIGHT
SE WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SE 2 FT AT 8 SECONDS AND E 1 FOOT AT 2 SECONDS. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
SUN
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SE 4 FT AT 6 SECONDS AND E 2 FT AT 3 SECONDS.
PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM IN THE AFTERNOON.
SUN NIGHT
SE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT,
BECOMING S 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT.
SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT AT 6 SECONDS. SHOWERS. PATCHY
FOG IN THE EVENING WITH VSBY 1 TO 3 NM.
MON
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT
AT 9 SECONDS AND W 1 FOOT AT 2 SECONDS. SHOWERS LIKELY, MAINLY IN
THE MORNING.
MON NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS IN THE EVENING.
TUE THROUGH WED NIGHT
NW 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.
ANZ235-231800-
RHODE ISLAND SOUND-
104 AM EDT SAT MAY 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
SUNDAY NIGHT...
REST OF TONIGHT
E WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE
DETAIL: NE 1 FOOT AT 3 SECONDS AND S 1 FOOT AT 6 SECONDS.
SAT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT
AT 7 SECONDS AND NE 2 FT AT 3 SECONDS.
SAT NIGHT
E WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT, BUILDING TO 3 TO 5 FT AFTER MIDNIGHT.
WAVE DETAIL: SE 3 FT AT 7 SECONDS AND NE 1 FOOT AT 3 SECONDS,
BECOMING SE 5 FT AT 8 SECONDS AND E 2 FT AT 3 SECONDS. A CHANCE
OF SHOWERS AFTER MIDNIGHT.
SUN
E WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. WAVE DETAIL: SE 7 FT AT 9 SECONDS AND E 4 FT AT 4 SECONDS.
PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM, DECREASING TO 1 NM OR LESS
IN THE AFTERNOON.
SUN NIGHT
SE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT,
BECOMING S 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT.
SEAS 5 TO 8 FT. WAVE DETAIL: SE 8 FT AT 9 SECONDS AND E 4 FT AT
7 SECONDS. SHOWERS. PATCHY FOG IN THE EVENING WITH VSBY 1 TO
3 NM.
MON
W WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SE 5 FT
AT 8 SECONDS AND SW 2 FT AT 10 SECONDS. SHOWERS LIKELY, MAINLY IN
THE MORNING.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. A CHANCE OF
SHOWERS IN THE EVENING.
TUE THROUGH WED NIGHT
NW 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.
ANZ237-231800-
BLOCK ISLAND SOUND-
104 AM EDT SAT MAY 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
SUNDAY NIGHT...
REST OF TONIGHT
E WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SE 2 FT AT 6 SECONDS AND SE 1 FOOT AT 9 SECONDS.
SAT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT
7 SECONDS AND E 2 FT AT 4 SECONDS.
SAT NIGHT
E WINDS AROUND 10 KT, INCREASING TO 15 TO 20 KT WITH
GUSTS UP TO 25 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT, BUILDING TO
3 TO 5 FT AFTER MIDNIGHT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND E
1 FOOT AT 3 SECONDS, BECOMING SE 5 FT AT 8 SECONDS AND E 3 FT AT
4 SECONDS. A CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS AFTER
MIDNIGHT.
SUN
E WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. WAVE DETAIL: SE 7 FT AT 9 SECONDS AND E 4 FT AT 5 SECONDS.
PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM.
SUN NIGHT
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
BECOMING S 5 TO 10 KT AFTER MIDNIGHT. SEAS 5 TO 8 FT. WAVE
DETAIL: SE 8 FT AT 9 SECONDS AND E 3 FT AT 8 SECONDS. SHOWERS.
PATCHY FOG IN THE EVENING WITH VSBY 1 TO 3 NM.
MON
W WINDS AROUND 5 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SE 5 FT
AT 9 SECONDS AND S 3 FT AT 9 SECONDS. SHOWERS LIKELY, MAINLY IN
THE MORNING.
MON NIGHT
W WINDS AROUND 5 KT. SEAS 3 TO 4 FT.
TUE THROUGH WED NIGHT
NW WINDS 10 TO 15 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.
ANZ230-231800-
BOSTON HARBOR-
104 AM EDT SAT MAY 23 2026
REST OF TONIGHT
W WINDS AROUND 5 KT. WAVES 1 FOOT OR LESS.
SAT
NE WINDS AROUND 5 KT, BECOMING E IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
SAT NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. A CHANCE
OF SHOWERS AFTER MIDNIGHT.
SUN
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES 2 TO
3 FT. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM IN THE AFTERNOON.
SUN NIGHT
E WINDS 15 TO 20 KT, DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES 2 TO 3 FT. SHOWERS. PATCHY FOG IN THE EVENING
WITH VSBY 1 TO 3 NM.
MON
N WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. A CHANCE OF
SHOWERS.
MON NIGHT
S WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
TUE AND TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
WED
W WINDS 5 TO 10 KT. WAVES AROUND 2 FT. A CHANCE OF
SHOWERS.
WED NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
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.
ANZ236-231800-
NARRAGANSETT BAY-
104 AM EDT SAT MAY 23 2026
REST OF TONIGHT
E WINDS AROUND 5 KT. WAVES AROUND 2 FT.
SAT
E WINDS 5 TO 10 KT, BECOMING SE IN THE AFTERNOON. WAVES
AROUND 2 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT. SHOWERS LIKELY
AFTER MIDNIGHT.
SUN
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES 3 TO
5 FT. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM, DECREASING TO 1 NM OR
LESS IN THE AFTERNOON.
SUN NIGHT
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. WAVES 2 TO 4 FT.
SHOWERS. PATCHY FOG IN THE EVENING WITH VSBY 1 TO 3 NM.
MON
NW WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. WAVES
2 TO 4 FT. A CHANCE OF SHOWERS.
MON NIGHT
W WINDS 5 TO 10 KT. WAVES 2 TO 3 FT.
TUE THROUGH WED NIGHT
NW WINDS 5 TO 10 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.
ANZ280-231800-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
104 AM EDT SAT MAY 23 2026
REST OF TONIGHT
W WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE
DETAIL: NE 1 FOOT AT 3 SECONDS AND NW 1 FOOT AT 3 SECONDS.
SAT
NE WINDS 5 TO 10 KT, BECOMING E IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: N 1 FOOT AT 3 SECONDS AND S 1 FOOT AT
6 SECONDS.
SAT NIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SE 2 FT AT 8 SECONDS AND NW 1 FOOT AT 2 SECONDS.
SUN
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SE 4 FT AT 6 SECONDS AND N 1 FOOT AT
2 SECONDS. A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS IN
THE AFTERNOON. PATCHY FOG IN THE AFTERNOON WITH VSBY 1 TO 3 NM.
SUN NIGHT
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 8 FT. WAVE DETAIL: SE 8 FT AT 8 SECONDS AND E 4 FT AT
5 SECONDS. SHOWERS. PATCHY FOG IN THE EVENING WITH VSBY 1 TO
3 NM.
MON
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, BECOMING W
5 TO 10 KT IN THE AFTERNOON. SEAS 5 TO 8 FT. WAVE DETAIL: SE 8 FT
AT 8 SECONDS AND E 3 FT AT 7 SECONDS. SHOWERS LIKELY, MAINLY IN
THE MORNING.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 4 TO 5 FT. A CHANCE OF
SHOWERS IN THE EVENING.
TUE THROUGH WED NIGHT
NW 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.
ANZ281-231800-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
104 AM EDT SAT MAY 23 2026
REST OF TONIGHT
N WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE
DETAIL: N 1 FOOT AT 4 SECONDS AND S 1 FOOT AT 6 SECONDS.
SAT
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: N 2 FT
AT 4 SECONDS AND SE 2 FT AT 10 SECONDS.
SAT NIGHT
E WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 8 SECONDS AND
NE 2 FT AT 4 SECONDS.
SUN
SE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT, BUILDING TO 5 TO
7 FT IN THE AFTERNOON. WAVE DETAIL: SE 4 FT AT 7 SECONDS AND E
3 FT AT 4 SECONDS, BECOMING SE 7 FT AT 6 SECONDS AND S 2 FT AT
10 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS IN THE AFTERNOON WITH VSBY 1 TO 3 NM.
SUN NIGHT
SE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
6 TO 9 FT. WAVE DETAIL: SE 9 FT AT 7 SECONDS AND S 1 FOOT AT
10 SECONDS. SHOWERS. PATCHY FOG IN THE EVENING WITH VSBY 1 TO
3 NM.
MON
S WINDS 15 TO 20 KT, BECOMING SW 10 TO 15 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 6 TO 8 FT, SUBSIDING TO 5 TO
6 FT IN THE AFTERNOON. WAVE DETAIL: SE 7 FT AT 8 SECONDS AND NE
1 FOOT AT 8 SECONDS, BECOMING SE 6 FT AT 8 SECONDS AND NE 3 FT AT
8 SECONDS. SHOWERS.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 4 TO 5 FT. A CHANCE OF
SHOWERS.
TUE THROUGH WED NIGHT
NW WINDS 5 TO 10 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.
ANZ282-231800-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
104 AM EDT SAT MAY 23 2026
REST OF TONIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: N 2 FT AT 4 SECONDS AND SE 2 FT AT 7 SECONDS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: N 3 FT AT 4 SECONDS AND E 3 FT AT 6 SECONDS.
SAT NIGHT
E WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 4 FT, BUILDING TO 4 TO
6 FT AFTER MIDNIGHT. WAVE DETAIL: SE 4 FT AT 7 SECONDS AND N
1 FOOT AT 4 SECONDS, BECOMING NE 5 FT AT 4 SECONDS AND SE 5 FT AT
8 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
SUN
E WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
8 FT, BUILDING TO 7 TO 10 FT IN THE AFTERNOON. WAVE DETAIL: SE
8 FT AT 8 SECONDS AND E 3 FT AT 5 SECONDS, BECOMING SE 10 FT AT
9 SECONDS AND E 3 FT AT 4 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO
3 NM IN THE AFTERNOON.
SUN NIGHT
SE WINDS 20 TO 25 KT, BECOMING S 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 7 TO 10 FT. WAVE DETAIL: SE
10 FT AT 9 SECONDS AND SE 3 FT AT 6 SECONDS. SHOWERS. PATCHY FOG
IN THE EVENING. VSBY 1 TO 3 NM.
MON
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 5 TO
7 FT. WAVE DETAIL: S 6 FT AT 7 SECONDS AND NE 2 FT AT 9 SECONDS.
SHOWERS, MAINLY IN THE MORNING.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 4 TO 5 FT. A CHANCE OF
SHOWERS.
TUE
W WINDS AROUND 5 KT. SEAS 4 TO 5 FT. A CHANCE OF SHOWERS.
TUE NIGHT THROUGH WED NIGHT
NW WINDS 10 TO 15 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.
ANZ283-231800-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
104 AM EDT SAT MAY 23 2026
REST OF TONIGHT
E WINDS AROUND 10 KT. SEAS AROUND 3 FT. WAVE
DETAIL: NE 3 FT AT 5 SECONDS AND S 1 FOOT AT 7 SECONDS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SE 5 FT AT 7 SECONDS AND N 3 FT AT 4 SECONDS.
SAT NIGHT
E WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT,
INCREASING TO 20 TO 25 KT WITH GUSTS UP TO 30 KT AFTER MIDNIGHT.
SEAS 4 TO 6 FT, BUILDING TO 5 TO 8 FT AFTER MIDNIGHT. WAVE
DETAIL: SE 6 FT AT 8 SECONDS AND N 2 FT AT 4 SECONDS, BECOMING SE
8 FT AT 8 SECONDS AND E 5 FT AT 5 SECONDS. A CHANCE OF SHOWERS IN
THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT. PATCHY FOG AFTER
MIDNIGHT.
SUN
SE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 9 TO
12 FT. WAVE DETAIL: SE 12 FT AT 9 SECONDS AND NE 7 FT AT
5 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM.
SUN NIGHT
SE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT,
BECOMING S 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT.
SEAS 8 TO 10 FT, SUBSIDING TO 7 TO 8 FT AFTER MIDNIGHT. WAVE
DETAIL: SE 10 FT AT 9 SECONDS AND E 7 FT AT 10 SECONDS, BECOMING
SE 7 FT AT 8 SECONDS AND S 4 FT AT 9 SECONDS. SHOWERS. PATCHY FOG
IN THE EVENING WITH VSBY 1 TO 3 NM.
MON
SW WINDS 5 TO 10 KT. SEAS 5 TO 6 FT. WAVE DETAIL: S 6 FT
AT 7 SECONDS AND NE 2 FT AT 10 SECONDS. SHOWERS LIKELY, MAINLY IN
THE MORNING.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 4 TO 5 FT. A CHANCE OF
SHOWERS.
TUE THROUGH WED NIGHT
NW WINDS 10 TO 15 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.
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