372
FZUS51 KBOX 230205
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1005 PM EDT SAT AUG 22 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-231500-
1005 PM EDT SAT AUG 22 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
WEAK LOW PRES LINGERS OFFSHORE TODAY ALONG A STALLED FRONT TODAY
AND SUN. PERIODS OF SHOWERS POSSIBLE. HIGH PRES PUSHES THIS FRONT
FARTHER OFFSHORE SOMETIME MON INTO MON NIGHT. THIS HIGH PRES SHOULD
REMAIN OVER THE WATERS THROUGH WED.
ANZ250-231500-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
1005 PM EDT SAT AUG 22 2026
OVERNIGHT
E WINDS AROUND 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
2 FT AT 5 SECONDS AND NW 1 FOOT AT 3 SECONDS. PATCHY FOG. A
SLIGHT CHANCE OF SHOWERS WITH PATCHY DRIZZLE. VSBY 1 NM OR LESS.
SUN
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
2 FT AT 5 SECONDS AND N 1 FOOT AT 4 SECONDS. PATCHY FOG. A CHANCE
OF SHOWERS WITH PATCHY DRIZZLE IN THE MORNING. VSBY 1 NM OR LESS,
INCREASING TO 1 TO 3 NM IN THE AFTERNOON.
SUN NIGHT
S WINDS AROUND 10 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT AT 5 SECONDS AND SE
2 FT AT 8 SECONDS. A CHANCE OF SHOWERS. PATCHY FOG AFTER
MIDNIGHT.
MON
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 6 SECONDS AND SW 1 FOOT
AT 3 SECONDS.
MON NIGHT THROUGH TUE NIGHT
W WINDS 5 TO 10 KT WITH GUSTS UP
TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 7 SECONDS AND S
2 FT AT 4 SECONDS.
WED THROUGH THU NIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: S 2 FT AT 3 SECONDS AND E 2 FT AT 6 SECONDS.
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.
ANZ251-231500-
MASSACHUSETTS BAY AND IPSWICH BAY-
1005 PM EDT SAT AUG 22 2026
OVERNIGHT
N WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE DETAIL:
E 2 FT AT 5 SECONDS AND S 1 FOOT AT 4 SECONDS. PATCHY FOG. A
SLIGHT CHANCE OF SHOWERS WITH PATCHY DRIZZLE. VSBY 1 NM OR LESS.
SUN
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT
AT 6 SECONDS AND N 1 FOOT AT 4 SECONDS. PATCHY FOG. A CHANCE OF
SHOWERS WITH PATCHY DRIZZLE IN THE MORNING. VSBY 1 NM OR LESS,
INCREASING TO 1 TO 3 NM IN THE AFTERNOON.
SUN NIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SE 2 FT AT 5 SECONDS AND E 2 FT AT 8 SECONDS. A CHANCE OF
SHOWERS. PATCHY FOG AFTER MIDNIGHT.
MON
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND E 2 FT AT
7 SECONDS.
MON NIGHT THROUGH TUE NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND
2 FT. WAVE DETAIL: E 2 FT AT 7 SECONDS AND SW 1 FOOT AT
3 SECONDS.
WED THROUGH THU NIGHT
S WINDS 10 TO 15 KT. SEAS AROUND 2 FT.
WAVE DETAIL: SE 2 FT AT 3 SECONDS AND E 2 FT AT 10 SECONDS.
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.
ANZ231-231500-
CAPE COD BAY-
1005 PM EDT SAT AUG 22 2026
OVERNIGHT
NW WINDS AROUND 5 KT, BECOMING NE. SEAS AROUND 2 FT.
WAVE DETAIL: N 1 FOOT AT 4 SECONDS AND S 1 FOOT AT 5 SECONDS.
PATCHY FOG. PATCHY DRIZZLE. A SLIGHT CHANCE OF SHOWERS, THEN A
CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF TSTMS. VSBY 1 NM OR
LESS.
SUN
E WINDS 5 TO 10 KT, BECOMING S IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: N 1 FOOT AT 4 SECONDS AND E 1 FOOT AT
4 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS WITH PATCHY DRIZZLE IN
THE MORNING WITH VSBY 1 NM OR LESS.
SUN NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 8 SECONDS AND
S 1 FOOT AT 2 SECONDS. A CHANCE OF SHOWERS IN THE EVENING. PATCHY
FOG AFTER MIDNIGHT.
MON
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE
2 FT AT 7 SECONDS AND SW 1 FOOT AT 2 SECONDS.
MON NIGHT THROUGH TUE NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 6 SECONDS AND
SW 1 FOOT AT 3 SECONDS.
WED THROUGH THU
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 2 FT AT 5 SECONDS AND W 1 FOOT AT 3 SECONDS.
THU NIGHT
S WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. 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.
ANZ254-231500-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
1005 PM EDT SAT AUG 22 2026
OVERNIGHT
S WINDS AROUND 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: N
2 FT AT 4 SECONDS AND S 1 FOOT AT 5 SECONDS. PATCHY FOG. PATCHY
DRIZZLE. A SLIGHT CHANCE OF SHOWERS, THEN SHOWERS LIKELY WITH A
CHANCE OF TSTMS. VSBY 1 NM OR LESS.
SUN
SE WINDS 5 TO 10 KT, BECOMING S IN THE AFTERNOON. GUSTS UP
TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT AT 5 SECONDS AND N
1 FOOT AT 4 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS WITH PATCHY
DRIZZLE IN THE MORNING WITH VSBY 1 NM OR LESS.
SUN NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT AT 6 SECONDS AND E
2 FT AT 7 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS. VSBY 1 TO
3 NM AFTER MIDNIGHT.
MON
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND SW 1 FOOT
AT 3 SECONDS.
MON NIGHT THROUGH TUE NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SE 3 FT AT 6 SECONDS AND W
2 FT AT 4 SECONDS.
WED THROUGH THU
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: S 2 FT AT 5 SECONDS AND SE 2 FT AT 8 SECONDS.
THU NIGHT
SE WINDS 5 TO 10 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.
ANZ255-231500-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
1005 PM EDT SAT AUG 22 2026
OVERNIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
E 2 FT AT 5 SECONDS AND N 1 FOOT AT 3 SECONDS. PATCHY FOG. A
CHANCE OF SHOWERS WITH PATCHY DRIZZLE. A CHANCE OF TSTMS. VSBY
1 NM OR LESS.
SUN
SE WINDS AROUND 10 KT, BECOMING S WITH GUSTS UP TO 20 KT
IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT AT
5 SECONDS AND NW 1 FOOT AT 5 SECONDS. PATCHY FOG. A CHANCE OF
SHOWERS WITH PATCHY DRIZZLE IN THE MORNING WITH VSBY 1 NM OR
LESS.
SUN NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT 6 SECONDS AND SE
3 FT AT 12 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS IN THE
EVENING.
MON
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT AT 6 SECONDS AND
SW 1 FOOT AT 2 SECONDS.
MON NIGHT THROUGH TUE NIGHT
W WINDS 15 TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: W 4 FT AT 5 SECONDS AND SW 4 FT AT 6 SECONDS.
WED THROUGH THU
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: W 3 FT AT 5 SECONDS AND NE 2 FT AT 4 SECONDS.
THU NIGHT
SE WINDS 5 TO 10 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.
ANZ256-231500-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
1005 PM EDT SAT AUG 22 2026
OVERNIGHT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S
1 FOOT AT 4 SECONDS AND NE 1 FOOT AT 4 SECONDS. PATCHY FOG.
PATCHY DRIZZLE. A SLIGHT CHANCE OF SHOWERS, THEN A CHANCE OF
SHOWERS WITH VSBY 1 TO 3 NM.
SUN
SE WINDS AROUND 10 KT, BECOMING S WITH GUSTS UP TO 20 KT
IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT AT
5 SECONDS AND SE 2 FT AT 12 SECONDS. PATCHY FOG IN THE MORNING. A
CHANCE OF SHOWERS WITH PATCHY DRIZZLE IN THE MORNING WITH VSBY
1 TO 3 NM.
SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 4 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND SE 2 FT AT
11 SECONDS. A CHANCE OF SHOWERS IN THE EVENING. PATCHY FOG AFTER
MIDNIGHT.
MON
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT
AT 7 SECONDS AND W 2 FT AT 4 SECONDS.
MON NIGHT THROUGH TUE NIGHT
W WINDS 15 TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SE 4 FT AT 7 SECONDS AND SW 3 FT AT 4 SECONDS.
WED THROUGH THU
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: NE 3 FT AT 5 SECONDS AND W 2 FT AT 5 SECONDS.
THU NIGHT
SE WINDS 5 TO 10 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.
ANZ232-231500-
NANTUCKET SOUND-
1005 PM EDT SAT AUG 22 2026
OVERNIGHT
SE WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE DETAIL:
N 1 FOOT AT 3 SECONDS AND S 1 FOOT AT 5 SECONDS. PATCHY FOG.
PATCHY DRIZZLE. A SLIGHT CHANCE OF SHOWERS, THEN SHOWERS LIKELY
WITH A CHANCE OF TSTMS. VSBY 1 TO 3 NM.
SUN
SE WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE 1 FOOT
AT 4 SECONDS AND NW 1 FOOT AT 4 SECONDS. PATCHY FOG. A CHANCE OF
SHOWERS WITH PATCHY DRIZZLE IN THE MORNING. VSBY 1 TO 3 NM.
SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE
DETAIL: SW 2 FT AT 4 SECONDS AND SE 2 FT AT 8 SECONDS. PATCHY
FOG. A CHANCE OF SHOWERS.
MON
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 6 SECONDS AND SW 1 FOOT AT 3 SECONDS.
MON NIGHT THROUGH TUE NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND
SW 2 FT AT 3 SECONDS.
WED THROUGH THU
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND E 1 FOOT
AT 6 SECONDS.
THU NIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 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.
ANZ233-231500-
VINEYARD SOUND-
1005 PM EDT SAT AUG 22 2026
OVERNIGHT
E WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: NE 1 FOOT AT 3 SECONDS AND S 1 FOOT AT 5 SECONDS. PATCHY
FOG. PATCHY DRIZZLE. A SLIGHT CHANCE OF SHOWERS, THEN A CHANCE OF
SHOWERS WITH VSBY 1 TO 3 NM.
SUN
SE WINDS AROUND 10 KT, BECOMING S WITH GUSTS UP TO 20 KT
IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: SE 1 FOOT AT
4 SECONDS AND NW 1 FOOT AT 4 SECONDS. PATCHY FOG. A CHANCE OF
SHOWERS WITH PATCHY DRIZZLE IN THE MORNING WITH VSBY 1 TO 3 NM.
SUN NIGHT
SW WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 11 SECONDS AND S 2 FT AT
5 SECONDS. A CHANCE OF SHOWERS IN THE EVENING. PATCHY FOG AFTER
MIDNIGHT.
MON
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW
3 FT AT 6 SECONDS AND SW 2 FT AT 4 SECONDS.
MON NIGHT THROUGH TUE NIGHT
W 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 E
1 FOOT AT 7 SECONDS.
WED THROUGH THU
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 2 FT. WAVE DETAIL: NE 2 FT AT 4 SECONDS AND SW 2 FT
AT 5 SECONDS.
THU NIGHT
S 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.
ANZ234-231500-
BUZZARDS BAY-
1005 PM EDT SAT AUG 22 2026
OVERNIGHT
NE WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: N 1 FOOT AT 2 SECONDS AND S 1 FOOT AT 5 SECONDS. PATCHY
FOG. PATCHY DRIZZLE. A SLIGHT CHANCE OF SHOWERS, THEN A CHANCE OF
SHOWERS. VSBY 1 TO 3 NM.
SUN
E WINDS 5 TO 10 KT, BECOMING S WITH GUSTS UP TO 20 KT IN
THE AFTERNOON. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT IN THE
AFTERNOON. WAVE DETAIL: SE 1 FOOT AT 3 SECONDS AND NW 1 FOOT AT
4 SECONDS, BECOMING SE 1 FOOT AT 3 SECONDS AND N 1 FOOT AT
4 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS WITH PATCHY DRIZZLE IN
THE MORNING WITH VSBY 1 TO 3 NM.
SUN NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 8 SECONDS AND SW
1 FOOT AT 4 SECONDS. A CHANCE OF SHOWERS IN THE EVENING. PATCHY
FOG AFTER MIDNIGHT WITH VSBY 1 TO 3 NM.
MON
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 25 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 3 SECONDS AND SW 2 FT AT 5 SECONDS.
MON NIGHT THROUGH TUE NIGHT
W 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 E
1 FOOT AT 7 SECONDS.
WED THROUGH THU
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND E 1 FOOT AT
6 SECONDS.
THU NIGHT
S 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.
ANZ235-231500-
RHODE ISLAND SOUND-
1005 PM EDT SAT AUG 22 2026
OVERNIGHT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: N
1 FOOT AT 3 SECONDS AND SW 1 FOOT AT 5 SECONDS. PATCHY FOG.
PATCHY DRIZZLE. A SLIGHT CHANCE OF SHOWERS, THEN A CHANCE OF
SHOWERS. VSBY 1 TO 3 NM.
SUN
E WINDS AROUND 10 KT, BECOMING S IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 4 SECONDS AND NW 1 FOOT AT
4 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS WITH PATCHY DRIZZLE IN
THE MORNING WITH VSBY 1 TO 3 NM.
SUN NIGHT
SW WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT
AFTER MIDNIGHT. GUSTS UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL:
SE 3 FT AT 5 SECONDS AND SE 2 FT AT 9 SECONDS. A CHANCE OF
SHOWERS IN THE EVENING. PATCHY FOG AFTER MIDNIGHT.
MON
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 7 SECONDS AND SW 2 FT AT 3 SECONDS.
MON NIGHT THROUGH TUE NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND W
2 FT AT 4 SECONDS.
WED THROUGH THU
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND NE 2 FT AT
4 SECONDS.
THU NIGHT
SE 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.
ANZ237-231500-
BLOCK ISLAND SOUND-
1005 PM EDT SAT AUG 22 2026
OVERNIGHT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: N
1 FOOT AT 2 SECONDS AND E 1 FOOT AT 5 SECONDS. PATCHY FOG. PATCHY
DRIZZLE. A SLIGHT CHANCE OF SHOWERS, THEN A CHANCE OF SHOWERS
WITH VSBY 1 TO 3 NM.
SUN
E WINDS AROUND 10 KT, BECOMING S IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 4 SECONDS AND N 1 FOOT AT
4 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS WITH
PATCHY DRIZZLE IN THE MORNING WITH VSBY 1 TO 3 NM.
SUN NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT AT 5 SECONDS AND W
1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS IN THE EVENING. PATCHY
FOG AFTER MIDNIGHT.
MON
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE
3 FT AT 6 SECONDS AND W 1 FOOT AT 3 SECONDS.
MON NIGHT THROUGH TUE NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND W
2 FT AT 3 SECONDS.
WED THROUGH THU
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SE 2 FT AT 6 SECONDS AND SE 2 FT AT 9 SECONDS.
THU NIGHT
SE 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.
ANZ230-231500-
BOSTON HARBOR-
1005 PM EDT SAT AUG 22 2026
OVERNIGHT
N WINDS AROUND 5 KT. WAVES 1 FOOT OR LESS. PATCHY
FOG. A SLIGHT CHANCE OF SHOWERS WITH PATCHY DRIZZLE. VSBY 1 TO
3 NM, DECREASING TO 1 NM OR LESS.
SUN
E WINDS AROUND 5 KT. WAVES 1 FOOT OR LESS. PATCHY FOG. A
CHANCE OF SHOWERS. PATCHY DRIZZLE IN THE MORNING WITH VSBY 1 NM
OR LESS.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. A CHANCE
OF SHOWERS. PATCHY FOG AFTER MIDNIGHT.
MON
SW WINDS AROUND 5 KT, INCREASING TO AROUND 10 KT IN THE
AFTERNOON. WAVES 1 FOOT OR LESS, THEN AROUND 2 FT IN THE
AFTERNOON.
MON NIGHT THROUGH TUE NIGHT
W WINDS 5 TO 10 KT. WAVES AROUND
2 FT.
WED THROUGH THU
S WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
THU NIGHT
S WINDS 5 TO 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.
ANZ236-231500-
NARRAGANSETT BAY-
1005 PM EDT SAT AUG 22 2026
OVERNIGHT
NE WINDS AROUND 5 KT. WAVES 1 FOOT OR LESS. PATCHY
FOG. A SLIGHT CHANCE OF SHOWERS WITH PATCHY DRIZZLE. VSBY 1 TO
3 NM.
SUN
E WINDS 5 TO 10 KT, BECOMING S IN THE AFTERNOON. WAVES
AROUND 2 FT. PATCHY FOG. A CHANCE OF SHOWERS WITH PATCHY DRIZZLE
IN THE MORNING WITH VSBY 1 TO 3 NM.
SUN NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE
EVENING. WAVES AROUND 2 FT. PATCHY FOG AFTER MIDNIGHT WITH VSBY
1 TO 3 NM.
MON
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.
MON NIGHT THROUGH TUE NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. WAVES 2 TO 3 FT.
WED THROUGH THU
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES AROUND 2 FT.
THU NIGHT
S WINDS 5 TO 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.
ANZ280-231500-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
1005 PM EDT SAT AUG 22 2026
OVERNIGHT
SE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
2 FT AT 5 SECONDS AND N 1 FOOT AT 4 SECONDS. PATCHY FOG. A SLIGHT
CHANCE OF SHOWERS WITH PATCHY DRIZZLE. VSBY 1 NM OR LESS.
SUN
SE WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT IN THE
AFTERNOON. GUSTS UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
2 FT AT 5 SECONDS AND N 1 FOOT AT 4 SECONDS. PATCHY FOG. A CHANCE
OF SHOWERS WITH PATCHY DRIZZLE IN THE MORNING. VSBY 1 NM OR LESS,
INCREASING TO 1 TO 3 NM IN THE AFTERNOON.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 4 FT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND E 2 FT AT
7 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS. VSBY 1 TO 3 NM.
MON
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND SW 1 FOOT AT
3 SECONDS.
MON NIGHT THROUGH TUE NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND W
2 FT AT 3 SECONDS.
WED THROUGH THU NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND S
2 FT AT 5 SECONDS.
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.
ANZ281-231500-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
1005 PM EDT SAT AUG 22 2026
OVERNIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
2 FT AT 5 SECONDS AND S 1 FOOT AT 5 SECONDS. PATCHY FOG. PATCHY
DRIZZLE. A CHANCE OF SHOWERS, THEN SHOWERS LIKELY WITH A CHANCE
OF TSTMS. VSBY 1 NM OR LESS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND NE 2 FT AT 7 SECONDS.
PATCHY FOG. A CHANCE OF SHOWERS. PATCHY DRIZZLE IN THE MORNING
WITH VSBY 1 NM OR LESS.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 4 FT. WAVE DETAIL: SE 4 FT AT 7 SECONDS AND W 1 FOOT AT
4 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS. VSBY 1 TO 3 NM.
MON
SW WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SE 4 FT AT 7 SECONDS AND W 1 FOOT AT
3 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
MON NIGHT THROUGH TUE NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND W
2 FT AT 4 SECONDS.
WED THROUGH THU
S WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE
DETAIL: W 3 FT AT 5 SECONDS AND SE 2 FT AT 9 SECONDS.
THU NIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 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.
ANZ282-231500-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
1005 PM EDT SAT AUG 22 2026
OVERNIGHT
SE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: E 2 FT AT 7 SECONDS AND SE 2 FT AT 13 SECONDS.
PATCHY FOG. PATCHY DRIZZLE. A CHANCE OF SHOWERS, THEN SHOWERS
LIKELY WITH A CHANCE OF TSTMS. VSBY 1 NM OR LESS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND N 2 FT AT 5 SECONDS.
PATCHY FOG. A CHANCE OF SHOWERS WITH PATCHY DRIZZLE IN THE
MORNING WITH VSBY 1 NM OR LESS.
SUN NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE
EVENING. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT 6 SECONDS AND SE
4 FT AT 9 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS.
MON
SW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT
AT 7 SECONDS AND SE 2 FT AT 11 SECONDS.
MON NIGHT THROUGH TUE NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. SEAS 3 TO 5 FT. WAVE DETAIL: W 4 FT AT 5 SECONDS AND SW
4 FT AT 6 SECONDS.
WED THROUGH THU
S WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE
DETAIL: SW 3 FT AT 6 SECONDS AND E 3 FT AT 7 SECONDS.
THU NIGHT
SE WINDS 5 TO 10 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.
ANZ283-231500-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
1005 PM EDT SAT AUG 22 2026
OVERNIGHT
SE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: E 2 FT AT 7 SECONDS AND N 1 FOOT AT 3 SECONDS.
PATCHY FOG. A CHANCE OF SHOWERS WITH PATCHY DRIZZLE. A SLIGHT
CHANCE OF TSTMS. VSBY 1 TO 3 NM.
SUN
S WINDS 10 TO 15 KT, BECOMING SW IN THE AFTERNOON. GUSTS
UP TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT AT 6 SECONDS
AND N 1 FOOT AT 4 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF
SHOWERS WITH PATCHY DRIZZLE IN THE MORNING WITH VSBY 1 TO 3 NM.
SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 4 FT. WAVE DETAIL: SE 4 FT AT 6 SECONDS AND NW 2 FT AT
5 SECONDS. A CHANCE OF SHOWERS IN THE EVENING. PATCHY FOG AFTER
MIDNIGHT.
MON
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT
AT 7 SECONDS AND W 2 FT AT 4 SECONDS.
MON NIGHT THROUGH TUE NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 5 SECONDS AND
SW 4 FT AT 5 SECONDS.
WED THROUGH THU
S WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: E 4 FT AT 9 SECONDS AND W 3 FT AT 5 SECONDS.
THU NIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 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.
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