090
FZUS51 KBOX 231105
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
704 AM EDT SAT MAY 23 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-240000-
704 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.
ANZ250-240000-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
704 AM EDT SAT MAY 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY EVENING...
TODAY
NE WINDS AROUND 5 KT, BECOMING E THIS AFTERNOON. SEAS
1 FOOT OR LESS, THEN AROUND 2 FT THIS 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.
TONIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
2 FT AT 9 SECONDS AND E 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 4 FT. WAVE DETAIL: SE
3 FT AT 5 SECONDS. A CHANCE OF RAIN IN THE MORNING, THEN RAIN 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
4 TO 6 FT. WAVE DETAIL: SE 6 FT AT 8 SECONDS AND SE 4 FT AT
5 SECONDS. PATCHY FOG. RAIN. VSBY 1 TO 3 NM.
MON
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE MORNING. SEAS
4 TO 6 FT. WAVE DETAIL: SE 6 FT AT 9 SECONDS AND E 3 FT AT
7 SECONDS. RAIN LIKELY IN THE MORNING.
MON NIGHT
SW WINDS AROUND 5 KT. SEAS 2 TO 4 FT. WAVE DETAIL:
SE 4 FT AT 8 SECONDS AND E 2 FT AT 7 SECONDS.
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.
ANZ251-240000-
MASSACHUSETTS BAY AND IPSWICH BAY-
704 AM EDT SAT MAY 23 2026
TODAY
NE WINDS AROUND 5 KT, BECOMING E THIS AFTERNOON. SEAS
1 FOOT OR LESS. WAVE DETAIL: S 1 FOOT AT 3 SECONDS AND NE 1 FOOT
AT 4 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE DETAIL:
E 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: SE
3 FT AT 5 SECONDS AND SE 2 FT AT 9 SECONDS. RAIN. PATCHY FOG IN
THE AFTERNOON WITH VSBY 1 TO 3 NM.
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 6 SECONDS. PATCHY FOG. RAIN. VSBY 1 TO 3 NM.
MON
N WINDS 5 TO 10 KT, BECOMING NW IN THE AFTERNOON. SEAS
2 TO 4 FT. WAVE DETAIL: SE 4 FT AT 7 SECONDS AND W 1 FOOT AT
2 SECONDS. A CHANCE OF RAIN IN THE MORNING.
MON NIGHT
SW WINDS AROUND 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 8 SECONDS AND E 2 FT AT 7 SECONDS.
TUE THROUGH 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.
ANZ231-240000-
CAPE COD BAY-
704 AM EDT SAT MAY 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
SUNDAY NIGHT...
TODAY
NE WINDS AROUND 5 KT, BECOMING E THIS AFTERNOON. SEAS
1 FOOT OR LESS. WAVE DETAIL: N 1 FOOT AT 4 SECONDS AND S 1 FOOT
AT 7 SECONDS.
TONIGHT
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 1 FOOT AT 3 SECONDS AND E 1 FOOT
AT 9 SECONDS. A CHANCE OF RAIN AFTER MIDNIGHT.
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 4 SECONDS AND E 3 FT AT 8 SECONDS. RAIN. 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
2 TO 4 FT. WAVE DETAIL: SE 4 FT AT 5 SECONDS AND E 1 FOOT AT
17 SECONDS. PATCHY FOG. RAIN. VSBY 1 TO 3 NM.
MON
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT
AT 8 SECONDS AND E 1 FOOT AT 3 SECONDS. RAIN LIKELY IN THE
MORNING, THEN A CHANCE OF SHOWERS IN THE AFTERNOON.
MON NIGHT
SW WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SE 2 FT AT 7 SECONDS AND W 1 FOOT AT 2 SECONDS.
TUE THROUGH 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.
ANZ254-240000-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
704 AM EDT SAT MAY 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
MONDAY EVENING...
TODAY
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
2 FT AT 10 SECONDS AND N 1 FOOT AT 4 SECONDS.
TONIGHT
E WINDS 5 TO 10 KT, BECOMING SE 10 TO 15 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 8 SECONDS AND
NE 2 FT 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 4 FT, BUILDING TO 4 TO
6 FT IN THE AFTERNOON. WAVE DETAIL: SE 4 FT AT 8 SECONDS AND E
3 FT AT 4 SECONDS, BECOMING SE 5 FT AT 5 SECONDS AND S 1 FOOT AT
10 SECONDS. RAIN. PATCHY FOG IN THE AFTERNOON WITH VSBY 1 TO
3 NM.
SUN NIGHT
SE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 8 FT. WAVE DETAIL: SE 8 FT AT 7 SECONDS AND E 2 FT AT
4 SECONDS. PATCHY FOG. RAIN. VSBY 1 TO 3 NM, DECREASING TO 1 NM
OR LESS AFTER MIDNIGHT.
MON
SW 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, SUBSIDING TO 3 TO
5 FT IN THE AFTERNOON. WAVE DETAIL: SE 7 FT AT 9 SECONDS AND E
2 FT AT 8 SECONDS, BECOMING SE 5 FT AT 9 SECONDS AND NE 2 FT AT
7 SECONDS. RAIN LIKELY IN THE MORNING, THEN A CHANCE OF SHOWERS
IN THE AFTERNOON. PATCHY FOG IN THE MORNING.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SE
5 FT AT 8 SECONDS AND S 2 FT AT 7 SECONDS.
TUE THROUGH WED NIGHT
W 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.
ANZ255-240000-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
704 AM EDT SAT MAY 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
MONDAY EVENING...
TODAY
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT
AT 4 SECONDS AND SE 2 FT AT 9 SECONDS.
TONIGHT
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.
SEAS 2 TO 4 FT. WAVE DETAIL: SE 4 FT AT 8 SECONDS AND NE 3 FT AT
4 SECONDS. A CHANCE OF RAIN AFTER MIDNIGHT.
SUN
SE WINDS 20 TO 25 KT WITH 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 9 SECONDS AND E 3 FT AT 4 SECONDS, BECOMING SE 8 FT AT
9 SECONDS AND E 3 FT AT 4 SECONDS. PATCHY FOG. RAIN. VSBY 1 TO
3 NM IN THE AFTERNOON.
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 9 SECONDS AND SE 5 FT AT
5 SECONDS. PATCHY FOG. RAIN. VSBY 1 TO 3 NM, DECREASING TO 1 NM
OR LESS AFTER MIDNIGHT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING W
5 TO 10 KT IN THE AFTERNOON. SEAS 4 TO 6 FT. WAVE DETAIL: SE 6 FT
AT 9 SECONDS AND SW 3 FT AT 7 SECONDS. RAIN LIKELY IN THE
MORNING, THEN A CHANCE OF SHOWERS IN THE AFTERNOON. PATCHY FOG IN
THE MORNING.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S
5 FT AT 7 SECONDS AND W 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS
IN THE EVENING.
TUE THROUGH WED NIGHT
W 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.
ANZ256-240000-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
704 AM EDT SAT MAY 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
MONDAY EVENING...
TODAY
E 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 E 2 FT AT 4 SECONDS.
A SLIGHT CHANCE OF RAIN THIS AFTERNOON.
TONIGHT
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 5 FT
AT 9 SECONDS AND N 3 FT AT 3 SECONDS. RAIN LIKELY AFTER MIDNIGHT.
SUN
E 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 5 FT AT 5 SECONDS, BECOMING SE 9 FT AT
9 SECONDS AND E 5 FT AT 6 SECONDS. PATCHY FOG. RAIN. VSBY 1 TO
3 NM.
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
7 FT AFTER MIDNIGHT. WAVE DETAIL: SE 9 FT AT 9 SECONDS AND E 6 FT
AT 6 SECONDS, BECOMING SE 7 FT AT 9 SECONDS AND SW 7 FT AT
10 SECONDS. PATCHY FOG. RAIN. VSBY 1 TO 3 NM.
MON
SW WINDS 10 TO 15 KT, BECOMING W 5 TO 10 KT IN THE
AFTERNOON. SEAS 4 TO 6 FT. WAVE DETAIL: SE 6 FT AT 9 SECONDS AND
SW 6 FT AT 13 SECONDS. RAIN LIKELY IN THE MORNING, THEN A CHANCE
OF SHOWERS IN THE AFTERNOON.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 4 TO 5 FT. WAVE DETAIL: S
5 FT AT 7 SECONDS AND W 1 FOOT AT 2 SECONDS.
TUE THROUGH WED NIGHT
W 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.
ANZ232-240000-
NANTUCKET SOUND-
704 AM EDT SAT MAY 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
SUNDAY NIGHT...
TODAY
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NE
1 FOOT AT 4 SECONDS AND S 1 FOOT AT 7 SECONDS.
TONIGHT
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 RAIN AFTER MIDNIGHT.
SUN
SE WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SE
4 FT AT 8 SECONDS AND E 3 FT AT 4 SECONDS. RAIN. PATCHY FOG IN
THE AFTERNOON WITH VSBY 1 TO 3 NM.
SUN NIGHT
SE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 6 FT. WAVE DETAIL: SE 5 FT AT 5 SECONDS AND S 3 FT AT
8 SECONDS. PATCHY FOG. RAIN. VSBY 1 TO 3 NM.
MON
SW WINDS 10 TO 15 KT, BECOMING W 5 TO 10 KT IN THE
AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SE 3 FT AT 9 SECONDS AND
SW 2 FT AT 4 SECONDS. RAIN LIKELY IN THE MORNING, THEN A CHANCE
OF SHOWERS IN THE AFTERNOON.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
2 FT AT 7 SECONDS AND W 1 FOOT AT 3 SECONDS.
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.
ANZ233-240000-
VINEYARD SOUND-
704 AM EDT SAT MAY 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
SUNDAY NIGHT...
TODAY
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
2 FT AT 10 SECONDS AND NE 1 FOOT AT 3 SECONDS.
TONIGHT
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 RAIN AFTER MIDNIGHT.
SUN
E WINDS 15 TO 20 KT, BECOMING SE 20 TO 25 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SE
5 FT AT 9 SECONDS AND E 3 FT AT 4 SECONDS. PATCHY FOG. RAIN. 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 6 FT
AT 9 SECONDS AND SW 4 FT AT 7 SECONDS. PATCHY FOG. RAIN. VSBY
1 TO 3 NM.
MON
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 8 SECONDS AND SE 3 FT AT 9 SECONDS. RAIN LIKELY IN THE
MORNING, THEN A CHANCE OF SHOWERS IN THE AFTERNOON.
MON NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
2 FT AT 8 SECONDS AND W 1 FOOT AT 2 SECONDS.
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.
ANZ234-240000-
BUZZARDS BAY-
704 AM EDT SAT MAY 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
SUNDAY NIGHT...
TODAY
E WINDS 5 TO 10 KT, BECOMING SE THIS AFTERNOON. SEAS
1 FOOT OR LESS, THEN AROUND 2 FT THIS 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.
TONIGHT
SE WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL: S
2 FT AT 8 SECONDS AND E 1 FOOT AT 2 SECONDS. A CHANCE OF RAIN
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 9 SECONDS AND E 2 FT AT 3 SECONDS.
PATCHY FOG. RAIN. VSBY 1 TO 3 NM.
SUN NIGHT
SE WINDS 20 TO 25 KT, BECOMING S 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT
AT 8 SECONDS AND E 3 FT AT 4 SECONDS. PATCHY FOG. RAIN. VSBY 1 TO
3 NM.
MON
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT
AT 6 SECONDS AND SE 2 FT AT 9 SECONDS. RAIN LIKELY IN THE
MORNING, THEN A CHANCE OF SHOWERS IN THE AFTERNOON.
MON NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SE 2 FT AT 8 SECONDS AND W 1 FOOT AT 2 SECONDS.
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.
ANZ235-240000-
RHODE ISLAND SOUND-
704 AM EDT SAT MAY 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
SUNDAY NIGHT...
TODAY
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT
AT 8 SECONDS AND NE 2 FT AT 4 SECONDS.
TONIGHT
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 8 SECONDS AND NE 1 FOOT AT 3 SECONDS,
BECOMING SE 4 FT AT 8 SECONDS AND NE 2 FT AT 5 SECONDS. RAIN
LIKELY 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 5 SECONDS.
PATCHY FOG. RAIN. VSBY 1 TO 3 NM.
SUN NIGHT
SE WINDS 20 TO 25 KT, BECOMING S 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 5 TO 8 FT. WAVE DETAIL: SE 8 FT
AT 9 SECONDS AND SW 5 FT AT 9 SECONDS. PATCHY FOG. RAIN. VSBY
1 TO 3 NM.
MON
W WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SE 5 FT
AT 9 SECONDS AND SW 4 FT AT 10 SECONDS. RAIN LIKELY IN THE
MORNING, THEN A CHANCE OF SHOWERS IN THE AFTERNOON.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE
4 FT AT 8 SECONDS AND S 2 FT AT 7 SECONDS.
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.
ANZ237-240000-
BLOCK ISLAND SOUND-
704 AM EDT SAT MAY 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
SUNDAY NIGHT...
TODAY
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT
AT 7 SECONDS AND E 1 FOOT AT 4 SECONDS. A SLIGHT CHANCE OF RAIN
THIS AFTERNOON.
TONIGHT
E WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT, BUILDING TO 3 TO
5 FT AFTER MIDNIGHT. WAVE DETAIL: SE 3 FT AT 8 SECONDS AND NE
1 FOOT AT 3 SECONDS, BECOMING SE 4 FT AT 8 SECONDS AND E 2 FT AT
7 SECONDS. A CHANCE OF RAIN IN THE EVENING, THEN RAIN 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 3 FT AT 4 SECONDS.
PATCHY FOG. RAIN. VSBY 1 TO 3 NM.
SUN NIGHT
SE WINDS 15 TO 20 KT, BECOMING S 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 5 TO 8 FT. WAVE DETAIL: SE 8 FT
AT 9 SECONDS AND S 7 FT AT 10 SECONDS. PATCHY FOG. RAIN. VSBY
1 TO 3 NM.
MON
W WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SE 5 FT
AT 9 SECONDS AND S 5 FT AT 10 SECONDS. A CHANCE OF RAIN IN THE
MORNING, THEN A CHANCE OF SHOWERS IN THE AFTERNOON.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE
4 FT AT 8 SECONDS AND S 2 FT AT 8 SECONDS.
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.
ANZ230-240000-
BOSTON HARBOR-
704 AM EDT SAT MAY 23 2026
TODAY
NE WINDS AROUND 5 KT, BECOMING E THIS AFTERNOON. WAVES
1 FOOT OR LESS.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. A CHANCE OF
RAIN AFTER MIDNIGHT.
SUN
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES 2 TO
3 FT. RAIN. PATCHY FOG IN THE AFTERNOON WITH VSBY 1 TO 3 NM.
SUN NIGHT
E WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. WAVES 2 TO 3 FT. PATCHY FOG. RAIN. VSBY 1 TO
3 NM.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. A CHANCE OF
RAIN IN THE MORNING.
MON NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FOOT OR LESS.
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.
ANZ236-240000-
NARRAGANSETT BAY-
704 AM EDT SAT MAY 23 2026
TODAY
NE WINDS 5 TO 10 KT, BECOMING SE THIS AFTERNOON. WAVES
AROUND 2 FT.
TONIGHT
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. WAVES 2 TO 3 FT. RAIN LIKELY AFTER MIDNIGHT.
SUN
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES 3 TO
5 FT. PATCHY FOG. RAIN. VSBY 1 TO 3 NM.
SUN NIGHT
SE WINDS 15 TO 20 KT, BECOMING S 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. WAVES 3 TO 5 FT. PATCHY FOG. RAIN.
VSBY 1 TO 3 NM.
MON
NW WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. WAVES
2 TO 3 FT. A CHANCE OF RAIN IN THE MORNING.
MON NIGHT
W WINDS AROUND 5 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.
ANZ280-240000-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
704 AM EDT SAT MAY 23 2026
TODAY
NE WINDS 5 TO 10 KT, BECOMING E THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: N 1 FOOT AT 3 SECONDS AND S 1 FOOT AT
6 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: E
2 FT AT 3 SECONDS AND S 1 FOOT AT 7 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. PATCHY FOG IN THE
AFTERNOON. RAIN IN THE AFTERNOON WITH VSBY 1 TO 3 NM.
SUN NIGHT
SE WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT
AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS 5 TO 7 FT, BUILDING TO
6 TO 9 FT AFTER MIDNIGHT. WAVE DETAIL: SE 7 FT AT 7 SECONDS,
BECOMING SE 9 FT AT 9 SECONDS AND E 3 FT AT 6 SECONDS. PATCHY
FOG. RAIN. 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 6 TO 8 FT, SUBSIDING TO 5 TO
6 FT IN THE AFTERNOON. WAVE DETAIL: SE 8 FT AT 9 SECONDS AND E
2 FT AT 7 SECONDS, BECOMING SE 6 FT AT 9 SECONDS AND E 3 FT AT
7 SECONDS. PATCHY FOG IN THE MORNING. RAIN LIKELY IN THE MORNING
WITH VSBY 1 TO 3 NM.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 4 TO 5 FT. WAVE DETAIL: SE
5 FT AT 8 SECONDS AND E 3 FT AT 7 SECONDS.
TUE THROUGH WED NIGHT
NW 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.
ANZ281-240000-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
704 AM EDT SAT MAY 23 2026
TODAY
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
2 FT AT 9 SECONDS AND N 1 FOOT AT 4 SECONDS.
TONIGHT
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 9 SECONDS AND E
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: E 4 FT AT 5 SECONDS AND S
1 FOOT AT 8 SECONDS, BECOMING SE 7 FT AT 7 SECONDS AND E 3 FT AT
4 SECONDS. A CHANCE OF RAIN IN THE MORNING, THEN RAIN IN THE
AFTERNOON. PATCHY FOG 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. PATCHY FOG. RAIN. VSBY 1 TO 3 NM, DECREASING TO 1 NM
OR LESS AFTER MIDNIGHT.
MON
S WINDS 15 TO 20 KT, BECOMING W 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 8 FT AT 9 SECONDS AND NE
2 FT AT 9 SECONDS, BECOMING SE 6 FT AT 8 SECONDS AND NE 3 FT AT
8 SECONDS. RAIN IN THE MORNING, THEN A CHANCE OF SHOWERS IN THE
AFTERNOON. PATCHY FOG IN THE MORNING WITH VSBY 1 TO 3 NM.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 5 FT. WAVE DETAIL:
SE 5 FT AT 8 SECONDS AND E 2 FT AT 7 SECONDS. A CHANCE OF
SHOWERS.
TUE THROUGH WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO
20 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.
ANZ282-240000-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
704 AM EDT SAT MAY 23 2026
TODAY
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SE 4 FT AT 8 SECONDS AND N 1 FOOT AT
4 SECONDS.
TONIGHT
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 8 SECONDS AND N
1 FOOT AT 4 SECONDS, BECOMING SE 5 FT AT 7 SECONDS AND NE 3 FT AT
4 SECONDS. A CHANCE OF RAIN 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 4 SECONDS, BECOMING SE 10 FT AT
9 SECONDS AND E 2 FT AT 3 SECONDS. PATCHY FOG. RAIN. 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 8 TO 10 FT, SUBSIDING TO 6 TO
8 FT AFTER MIDNIGHT. WAVE DETAIL: SE 10 FT AT 9 SECONDS AND E
2 FT AT 4 SECONDS, BECOMING SE 8 FT AT 9 SECONDS AND S 3 FT AT
5 SECONDS. PATCHY FOG. RAIN. VSBY 1 TO 3 NM, DECREASING TO 1 NM
OR LESS AFTER MIDNIGHT.
MON
SW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 5 TO 6 FT. WAVE DETAIL: SE 6 FT AT 9 SECONDS AND
SW 3 FT AT 7 SECONDS. RAIN IN THE MORNING, THEN A CHANCE OF
SHOWERS IN THE AFTERNOON. PATCHY FOG IN THE MORNING.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 5 TO 6 FT. WAVE DETAIL: S
5 FT AT 7 SECONDS AND W 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS.
TUE THROUGH WED NIGHT
W WINDS 10 TO 15 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.
ANZ283-240000-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
704 AM EDT SAT MAY 23 2026
TODAY
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SE 4 FT AT 8 SECONDS AND N 1 FOOT AT
4 SECONDS. A SLIGHT CHANCE OF RAIN THIS AFTERNOON.
TONIGHT
E WINDS AROUND 15 KT, INCREASING TO 20 TO 25 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 4 TO 6 FT, BUILDING TO 5 TO
8 FT AFTER MIDNIGHT. WAVE DETAIL: SE 5 FT AT 8 SECONDS AND N
1 FOOT AT 4 SECONDS, BECOMING SE 8 FT AT 8 SECONDS AND NE 3 FT AT
3 SECONDS. A CHANCE OF RAIN IN THE EVENING, THEN RAIN LIKELY
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 E 6 FT AT
6 SECONDS. PATCHY FOG. RAIN. VSBY 1 TO 3 NM.
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, SUBSIDING TO 6 TO
7 FT AFTER MIDNIGHT. WAVE DETAIL: SE 10 FT AT 9 SECONDS AND NE
7 FT AT 6 SECONDS, BECOMING SE 7 FT AT 9 SECONDS AND SW 6 FT AT
9 SECONDS. PATCHY FOG. RAIN. VSBY 1 TO 3 NM, DECREASING TO 1 NM
OR LESS AFTER MIDNIGHT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING W
5 TO 10 KT IN THE AFTERNOON. SEAS 5 TO 6 FT. WAVE DETAIL: S 6 FT
AT 8 SECONDS AND SE 6 FT AT 9 SECONDS. RAIN LIKELY IN THE
MORNING, THEN A CHANCE OF SHOWERS IN THE AFTERNOON. PATCHY FOG IN
THE MORNING.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 5 TO 6 FT. WAVE DETAIL: S
5 FT AT 7 SECONDS AND W 1 FOOT AT 2 SECONDS. A CHANCE OF SHOWERS.
TUE THROUGH WED NIGHT
W WINDS 10 TO 15 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.
FOR THE LATEST UPDATES...PLEASE VISIT OUR WEBPAGE AT
WWW.WEATHER.GOV/BOSTON
YOU CAN FOLLOW US ON FACEBOOK AT
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.BOSTON.GOV
YOU CAN FOLLOW US ON TWITTER AT
@NWSBOSTON
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page