377
FZUS51 KBOX 151103
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
703 AM EDT FRI MAY 15 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-160000-
703 AM EDT FRI MAY 15 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
LOW PRESSURE PUSHES FAR OFFSHORE FRI WITH CONTINUED EASTERLY FLOW
AND SWELLS. THEN THE BERMUDA HIGH DEVELOPS OVER THE WEEKEND INTO
EARLY NEXT WEEK, PROVIDING TRANQUIL BOATING WEATHER ACROSS THE MA
AND RI WATERS.
ANZ250-160000-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
703 AM EDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING
TODAY
NE WINDS 5 TO 10 KT. SEAS 4 TO 6 FT. WAVE DETAIL: E 6 FT
AT 10 SECONDS AND S 1 FOOT AT 5 SECONDS. PATCHY FOG. ISOLATED
SHOWERS WITH PATCHY DRIZZLE. VSBY 1 NM OR LESS.
TONIGHT
N WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
4 TO 6 FT. WAVE DETAIL: E 6 FT AT 10 SECONDS AND N 1 FOOT AT
3 SECONDS. PATCHY FOG. PATCHY DRIZZLE IN THE EVENING. VSBY 1 TO
3 NM.
SAT
SW WINDS 10 TO 15 KT, BECOMING S 15 TO 20 KT WITH GUSTS UP
TO 25 KT IN THE AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: E 5 FT AT
10 SECONDS AND S 3 FT AT 4 SECONDS. PATCHY FOG IN THE MORNING.
SAT NIGHT
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 E 4 FT AT
9 SECONDS.
SUN
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS 3 TO 4 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND SE 3 FT AT
9 SECONDS.
SUN NIGHT
NW WINDS AROUND 10 KT, BECOMING N AFTER MIDNIGHT.
SEAS 2 TO 4 FT. WAVE DETAIL: NW 2 FT AT 3 SECONDS AND SE 2 FT AT
8 SECONDS.
MON THROUGH TUE 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.
ANZ251-160000-
MASSACHUSETTS BAY AND IPSWICH BAY-
703 AM EDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
TODAY
NE WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: E 5 FT
AT 10 SECONDS AND SW 1 FOOT AT 4 SECONDS. PATCHY FOG. ISOLATED
SHOWERS WITH PATCHY DRIZZLE. VSBY 1 NM OR LESS.
TONIGHT
N WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
3 TO 5 FT. WAVE DETAIL: E 5 FT AT 10 SECONDS AND NW 1 FOOT AT
3 SECONDS. PATCHY FOG. PATCHY DRIZZLE IN THE EVENING. VSBY 1 TO
3 NM.
SAT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 2 TO 4 FT. WAVE DETAIL: E 4 FT AT 10 SECONDS AND S 2 FT AT
4 SECONDS. PATCHY FOG IN THE MORNING.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND E 3 FT AT
10 SECONDS.
SUN
W 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 3 SECONDS AND
E 2 FT AT 9 SECONDS.
SUN NIGHT
NW WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: E 2 FT AT 8 SECONDS AND W 1 FOOT AT
3 SECONDS.
MON THROUGH TUE NIGHT
SW 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.
ANZ231-160000-
CAPE COD BAY-
703 AM EDT FRI MAY 15 2026
TODAY
NE WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: NE
1 FOOT AT 5 SECONDS AND S 1 FOOT AT 5 SECONDS. PATCHY FOG. PATCHY
DRIZZLE THIS MORNING, THEN ISOLATED SHOWERS THIS AFTERNOON. VSBY
1 NM OR LESS, INCREASING TO 1 TO 3 NM THIS AFTERNOON.
TONIGHT
N WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
3 TO 5 FT. WAVE DETAIL: N 1 FOOT AT 4 SECONDS. PATCHY FOG. PATCHY
DRIZZLE IN THE EVENING. VSBY 1 TO 3 NM.
SAT
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 25 KT IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SW
2 FT AT 3 SECONDS AND NE 1 FOOT AT 6 SECONDS. PATCHY FOG IN THE
MORNING.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 4 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND E 1 FOOT AT
8 SECONDS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, DIMINISHING
TO 5 TO 10 KT IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: SW
2 FT AT 3 SECONDS AND E 1 FOOT AT 9 SECONDS.
SUN NIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: W 1 FOOT AT 3 SECONDS AND E 1 FOOT AT
9 SECONDS.
MON AND MON NIGHT
E WINDS 5 TO 10 KT, BECOMING S. SEAS AROUND
2 FT.
TUE AND TUE NIGHT
SW WINDS 10 TO 15 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.
ANZ254-160000-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
703 AM EDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING
TODAY
N WINDS 5 TO 10 KT. SEAS 4 TO 6 FT, BUILDING TO 6 TO
7 FT THIS AFTERNOON. WAVE DETAIL: SE 6 FT AT 10 SECONDS AND S
2 FT AT 9 SECONDS, BECOMING E 7 FT AT 10 SECONDS AND W 3 FT AT
10 SECONDS. PATCHY FOG. PATCHY DRIZZLE. ISOLATED SHOWERS THIS
AFTERNOON. VSBY 1 NM OR LESS.
TONIGHT
N WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
5 TO 7 FT. WAVE DETAIL: E 7 FT AT 10 SECONDS AND W 1 FOOT AT
9 SECONDS. PATCHY FOG. PATCHY DRIZZLE IN THE EVENING. VSBY 1 TO
3 NM, DECREASING TO 1 NM OR LESS AFTER MIDNIGHT.
SAT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: E 5 FT AT 10 SECONDS AND SW 3 FT AT 4 SECONDS.
PATCHY FOG IN THE MORNING WITH VSBY 1 TO 3 NM.
SAT NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 4 FT AT
9 SECONDS.
SUN
SW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND
SE 3 FT AT 9 SECONDS.
SUN NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N 5 TO 10 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: W 3 FT
AT 4 SECONDS AND SE 3 FT AT 8 SECONDS.
MON THROUGH TUE NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO
25 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.
ANZ255-160000-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
703 AM EDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING
TODAY
W WINDS 5 TO 10 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SE 7 FT
AT 10 SECONDS AND SW 5 FT AT 10 SECONDS. PATCHY FOG. PATCHY
DRIZZLE. ISOLATED SHOWERS THIS AFTERNOON. VSBY 1 NM OR LESS.
TONIGHT
NW WINDS 5 TO 10 KT. SEAS 6 TO 7 FT, SUBSIDING TO 4 TO
6 FT AFTER MIDNIGHT. WAVE DETAIL: SE 6 FT AT 10 SECONDS AND S
4 FT AT 9 SECONDS, BECOMING SE 6 FT AT 10 SECONDS AND SW 2 FT AT
7 SECONDS. PATCHY FOG. PATCHY DRIZZLE IN THE EVENING. VSBY 1 TO
3 NM, DECREASING TO 1 NM OR LESS AFTER MIDNIGHT.
SAT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SE 5 FT AT 10 SECONDS AND SW 3 FT AT
8 SECONDS. PATCHY FOG IN THE MORNING WITH VSBY 1 NM OR LESS.
SAT NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND SE 4 FT AT
9 SECONDS.
SUN
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT
AT 6 SECONDS AND SE 3 FT AT 9 SECONDS.
SUN NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 4 FT AT
7 SECONDS AND SE 3 FT AT 8 SECONDS.
MON THROUGH TUE NIGHT
SW WINDS 15 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.
ANZ256-160000-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
703 AM EDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING
TODAY
W WINDS 5 TO 10 KT. SEAS 5 TO 6 FT. WAVE DETAIL: SE 6 FT
AT 10 SECONDS AND W 4 FT AT 8 SECONDS. PATCHY DRIZZLE THIS
MORNING. ISOLATED SHOWERS THIS AFTERNOON. PATCHY FOG THIS MORNING
WITH VSBY 1 NM OR LESS.
TONIGHT
NW WINDS 5 TO 10 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SE
6 FT AT 10 SECONDS AND SW 1 FOOT AT 6 SECONDS. PATCHY FOG. PATCHY
DRIZZLE IN THE EVENING. VSBY 1 TO 3 NM, DECREASING TO 1 NM OR
LESS AFTER MIDNIGHT.
SAT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 3 TO 5 FT. WAVE DETAIL: SE 5 FT AT 10 SECONDS AND SW 3 FT AT
8 SECONDS. PATCHY FOG IN THE MORNING WITH VSBY 1 TO 3 NM.
SAT NIGHT
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 4 FT AT
9 SECONDS.
SUN
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT
AT 6 SECONDS AND SE 3 FT AT 9 SECONDS.
SUN NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N 5 TO 10 KT AFTER MIDNIGHT. SEAS 4 TO 5 FT. WAVE DETAIL: SW 5 FT
AT 7 SECONDS AND SE 2 FT AT 8 SECONDS.
MON THROUGH TUE NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO
25 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.
ANZ232-160000-
NANTUCKET SOUND-
703 AM EDT FRI MAY 15 2026
TODAY
NW WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SE
3 FT AT 7 SECONDS. PATCHY DRIZZLE THIS MORNING. ISOLATED SHOWERS
THIS AFTERNOON. PATCHY FOG THIS MORNING WITH VSBY 1 NM OR LESS.
TONIGHT
N WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
3 TO 5 FT. WAVE DETAIL: E 3 FT AT 7 SECONDS AND SW 1 FOOT AT
6 SECONDS. PATCHY FOG. PATCHY DRIZZLE IN THE EVENING. VSBY 1 TO
3 NM.
SAT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 3 FT AT 7 SECONDS.
PATCHY FOG IN THE MORNING.
SAT NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
AROUND 3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND SE 2 FT AT
8 SECONDS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 1 FOOT AT
9 SECONDS.
SUN NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT
AT 4 SECONDS AND SE 1 FOOT AT 9 SECONDS.
MON THROUGH TUE NIGHT
SW 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.
ANZ233-160000-
VINEYARD SOUND-
703 AM EDT FRI MAY 15 2026
TODAY
W WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT
AT 8 SECONDS AND S 3 FT AT 10 SECONDS. PATCHY DRIZZLE THIS
MORNING. ISOLATED SHOWERS THIS AFTERNOON. PATCHY FOG THIS MORNING
WITH VSBY 1 NM OR LESS.
TONIGHT
N WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
3 TO 5 FT. WAVE DETAIL: SW 2 FT AT 7 SECONDS AND SE 2 FT AT
9 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM.
SAT
SW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE AFTERNOON.
SEAS 2 TO 4 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND SE 2 FT AT
9 SECONDS. PATCHY FOG IN THE MORNING.
SAT NIGHT
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.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SW 3 FT AT 6 SECONDS AND SE 1 FOOT AT
8 SECONDS.
SUN NIGHT
W WINDS 10 TO 15 KT, BECOMING N 5 TO 10 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 8 SECONDS AND E
1 FOOT AT 9 SECONDS.
MON THROUGH TUE NIGHT
SW 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.
ANZ234-160000-
BUZZARDS BAY-
703 AM EDT FRI MAY 15 2026
TODAY
NW WINDS AROUND 5 KT, BECOMING W THIS AFTERNOON. SEAS
2 TO 4 FT. WAVE DETAIL: S 2 FT AT 10 SECONDS AND SW 1 FOOT AT
7 SECONDS. PATCHY DRIZZLE THIS MORNING. ISOLATED SHOWERS THIS
AFTERNOON. PATCHY FOG THIS MORNING WITH VSBY 1 NM OR LESS.
TONIGHT
N WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
2 TO 4 FT. WAVE DETAIL: W 1 FOOT AT 6 SECONDS AND E 1 FOOT AT
8 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM.
SAT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT, BUILDING TO 3 TO
5 FT IN THE AFTERNOON. WAVE DETAIL: S 2 FT AT 7 SECONDS, BECOMING
SW 3 FT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS. PATCHY FOG IN
THE MORNING.
SAT NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 4 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND SE 1 FOOT AT
8 SECONDS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS.
SUN NIGHT
W WINDS 10 TO 15 KT, BECOMING N 5 TO 10 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 7 SECONDS AND
SE 2 FT AT 9 SECONDS.
MON AND MON NIGHT
SE WINDS 5 TO 10 KT, BECOMING S. SEAS AROUND
2 FT.
TUE AND TUE NIGHT
SW 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.
ANZ235-160000-
RHODE ISLAND SOUND-
703 AM EDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
TODAY
W WINDS 5 TO 10 KT. SEAS 4 TO 5 FT. WAVE DETAIL: SE 5 FT
AT 10 SECONDS AND SW 3 FT AT 9 SECONDS. PATCHY DRIZZLE THIS
MORNING. SCATTERED SHOWERS THIS AFTERNOON. PATCHY FOG THIS
MORNING WITH VSBY 1 NM OR LESS.
TONIGHT
N WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
4 TO 6 FT. WAVE DETAIL: SE 5 FT AT 9 SECONDS AND SW 1 FOOT AT
8 SECONDS. PATCHY FOG. PATCHY DRIZZLE IN THE EVENING. VSBY 1 TO
3 NM.
SAT
SW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE AFTERNOON.
SEAS 2 TO 4 FT. WAVE DETAIL: SE 4 FT AT 10 SECONDS AND SW 3 FT AT
4 SECONDS. PATCHY FOG IN THE MORNING.
SAT NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
AROUND 3 FT. WAVE DETAIL: SW 3 FT AT 6 SECONDS AND SE 3 FT AT
9 SECONDS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SW 3 FT AT 6 SECONDS AND SE 2 FT AT 9 SECONDS.
SUN NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N 5 TO 10 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT
AT 8 SECONDS AND SE 2 FT AT 8 SECONDS.
MON THROUGH TUE 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.
ANZ237-160000-
BLOCK ISLAND SOUND-
703 AM EDT FRI MAY 15 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
TODAY
NW WINDS 5 TO 10 KT, BECOMING W THIS AFTERNOON. SEAS
3 TO 5 FT. WAVE DETAIL: SE 5 FT AT 10 SECONDS AND SW 2 FT AT
7 SECONDS. PATCHY DRIZZLE THIS MORNING. SCATTERED SHOWERS THIS
AFTERNOON. PATCHY FOG THIS MORNING WITH VSBY 1 NM OR LESS.
TONIGHT
N WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
4 TO 6 FT. WAVE DETAIL: SE 5 FT AT 9 SECONDS AND SW 2 FT AT
6 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM.
SAT
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SE
4 FT AT 10 SECONDS AND SW 3 FT AT 5 SECONDS. PATCHY FOG IN THE
MORNING.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 6 SECONDS AND SE 3 FT AT
9 SECONDS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: W 3 FT AT 6 SECONDS AND SE 2 FT AT 9 SECONDS.
SUN NIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS AND SE 2 FT AT
8 SECONDS.
MON THROUGH TUE NIGHT
SW 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.
ANZ230-160000-
BOSTON HARBOR-
703 AM EDT FRI MAY 15 2026
TODAY
NE WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS, THEN AROUND
2 FT THIS AFTERNOON. AT THE OUTER HARBOR ENTRANCE, WAVES 2 TO
4 FT. PATCHY FOG. ISOLATED SHOWERS WITH PATCHY DRIZZLE. VSBY 1 NM
OR LESS.
TONIGHT
N WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. WAVES
1 FOOT OR LESS, EXCEPT 2 TO 4 FT AT THE OUTER HARBOR ENTRANCE.
PATCHY FOG. PATCHY DRIZZLE IN THE EVENING. VSBY 1 TO 3 NM.
SAT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 FOOT OR LESS, THEN AROUND 2 FT IN THE AFTERNOON.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES
AROUND 2 FT.
SUN
W WINDS AROUND 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES AROUND 2 FT.
SUN NIGHT
NW WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT.
WAVES AROUND 2 FT IN THE EVENING, THEN 1 FOOT OR LESS.
MON THROUGH TUE NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP 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.
ANZ236-160000-
NARRAGANSETT BAY-
703 AM EDT FRI MAY 15 2026
TODAY
NW WINDS 5 TO 10 KT. WAVES 2 TO 3 FT. PATCHY DRIZZLE
THIS MORNING, THEN SCATTERED SHOWERS THIS AFTERNOON. PATCHY FOG
THIS MORNING WITH VSBY 1 TO 3 NM.
TONIGHT
N WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. WAVES
2 TO 3 FT. PATCHY FOG. SCATTERED SHOWERS IN THE EVENING. VSBY
1 TO 3 NM.
SAT
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. WAVES 2 TO 4 FT. PATCHY FOG IN THE
MORNING.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES
2 TO 3 FT.
SUN
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. WAVES 2 TO 3 FT.
SUN NIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. WAVES
2 TO 3 FT.
MON THROUGH TUE NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 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.
ANZ280-160000-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
703 AM EDT FRI MAY 15 2026
TODAY
E WINDS 5 TO 10 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SE 7 FT
AT 10 SECONDS AND SE 1 FOOT AT 4 SECONDS. PATCHY FOG. SCATTERED
SHOWERS. VSBY 1 NM OR LESS.
TONIGHT
N WINDS 5 TO 10 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. SEAS 5 TO 7 FT. WAVE DETAIL: E 7 FT AT 10 SECONDS.
PATCHY FOG. PATCHY DRIZZLE IN THE EVENING. VSBY 1 TO 3 NM.
SAT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 4 TO 6 FT. WAVE DETAIL: E 6 FT
AT 10 SECONDS AND SW 4 FT AT 4 SECONDS.
SAT NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 5 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND SE 4 FT AT
9 SECONDS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS AROUND
4 FT. WAVE DETAIL: W 4 FT AT 5 SECONDS AND SE 4 FT AT 9 SECONDS.
SUN NIGHT
W WINDS AROUND 10 KT, BECOMING N AFTER MIDNIGHT.
SEAS AROUND 4 FT. WAVE DETAIL: S 3 FT AT 8 SECONDS AND W 2 FT AT
4 SECONDS.
MON THROUGH TUE NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO
30 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.
ANZ281-160000-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
703 AM EDT FRI MAY 15 2026
TODAY
N WINDS 5 TO 10 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SE 7 FT
AT 10 SECONDS AND SW 3 FT AT 10 SECONDS. PATCHY FOG. ISOLATED
SHOWERS WITH PATCHY DRIZZLE. VSBY 1 NM OR LESS.
TONIGHT
NW WINDS 5 TO 10 KT. SEAS 6 TO 8 FT. WAVE DETAIL: E
8 FT AT 10 SECONDS AND W 2 FT AT 5 SECONDS. PATCHY FOG. PATCHY
DRIZZLE IN THE EVENING. VSBY 1 NM OR LESS.
SAT
W WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 5 TO 6 FT. WAVE DETAIL: SE
6 FT AT 10 SECONDS AND SW 4 FT AT 4 SECONDS. PATCHY FOG. VSBY
1 NM OR LESS, INCREASING TO 1 TO 3 NM IN THE AFTERNOON.
SAT NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 5 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND SE 4 FT AT
9 SECONDS.
SUN
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND SE 4 FT AT 9 SECONDS.
SUN NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N AFTER MIDNIGHT. SEAS 4 TO 5 FT. WAVE DETAIL: SW 4 FT AT
7 SECONDS AND S 4 FT AT 8 SECONDS.
MON THROUGH TUE NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO
25 KT. SEAS 4 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.
ANZ282-160000-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
703 AM EDT FRI MAY 15 2026
TODAY
W WINDS 5 TO 10 KT. SEAS 6 TO 7 FT. WAVE DETAIL: SE 7 FT
AT 10 SECONDS AND W 3 FT AT 8 SECONDS. PATCHY FOG. PATCHY
DRIZZLE. VSBY 1 NM OR LESS.
TONIGHT
NW WINDS 5 TO 10 KT. SEAS 7 TO 8 FT, SUBSIDING TO 5 TO
8 FT AFTER MIDNIGHT. WAVE DETAIL: E 7 FT AT 10 SECONDS AND W 2 FT
AT 11 SECONDS, BECOMING E 6 FT AT 10 SECONDS AND SW 2 FT AT
10 SECONDS. PATCHY FOG. PATCHY DRIZZLE IN THE EVENING. VSBY 1 TO
3 NM, DECREASING TO 1 NM OR LESS AFTER MIDNIGHT.
SAT
W WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS 5 TO 6 FT. WAVE DETAIL: E 6 FT AT
10 SECONDS AND SW 3 FT AT 9 SECONDS. PATCHY FOG IN THE MORNING
WITH VSBY 1 NM OR LESS.
SAT NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
AROUND 5 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND E 4 FT AT
9 SECONDS.
SUN
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND SE 3 FT AT 9 SECONDS.
SUN NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
NW AFTER MIDNIGHT. SEAS AROUND 5 FT. WAVE DETAIL: SW 5 FT AT
7 SECONDS AND SE 3 FT AT 8 SECONDS.
MON THROUGH TUE NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO
25 KT. SEAS 4 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.
ANZ283-160000-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
703 AM EDT FRI MAY 15 2026
TODAY
W WINDS 5 TO 10 KT. SEAS 6 TO 7 FT. WAVE DETAIL: SE 7 FT
AT 10 SECONDS AND SW 3 FT AT 9 SECONDS. PATCHY FOG. PATCHY
DRIZZLE. VSBY 1 NM OR LESS, INCREASING TO 1 TO 3 NM THIS
AFTERNOON.
TONIGHT
NW WINDS 5 TO 10 KT. SEAS 7 TO 8 FT, SUBSIDING TO 5 TO
8 FT AFTER MIDNIGHT. WAVE DETAIL: SE 6 FT AT 10 SECONDS AND SW
2 FT AT 5 SECONDS, BECOMING E 6 FT AT 10 SECONDS AND SW 2 FT AT
5 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM, DECREASING TO 1 NM OR LESS
AFTER MIDNIGHT.
SAT
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS 4 TO 6 FT. WAVE DETAIL: E 5 FT
AT 10 SECONDS AND SW 3 FT AT 9 SECONDS.
SAT NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 5 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND E 4 FT AT
9 SECONDS.
SUN
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND SE 3 FT AT 9 SECONDS.
SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING NW 5 TO 10 KT AFTER MIDNIGHT. SEAS 4 TO 5 FT. WAVE
DETAIL: SW 5 FT AT 7 SECONDS AND SE 3 FT AT 9 SECONDS.
MON THROUGH TUE NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO
25 KT. SEAS 4 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.
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