986
FZUS51 KBOX 031403
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1003 AM EDT MON AUG 3 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-040300-
1003 AM EDT MON AUG 3 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
SCA CONDITIONS TO START THE WEEK AS LOW PRESSURE BRINGS HEAVY RAIN
AND GUSTY WIND THROUGH MONDAY NIGHT. SEAS BUILD TO BETWEEN 5 AND 7
FEET ACROSS THE OUTER WATERS AND WINDS INCREASE TO BETWEEN 15 AND 20
KT. CHANCE FOR ISOLATED GALE CONDITIONS ACROSS BUZZARDS BAY AND
NANTUCKET SOUND MONDAY AFTERNOON. A FEW WEAK DISTURBANCES ARRIVE
NEXT WEEK BUT IMPACTS TO BOATERS SHOULD BE MINIMAL.
ANZ250-040300-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
1003 AM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON
THIS AFTERNOON
S WINDS AROUND 20 KT WITH GUSTS UP TO 30 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT AT 6 SECONDS AND E 2 FT AT
9 SECONDS. PATCHY FOG. A SLIGHT CHANCE OF SHOWERS WITH ISOLATED
TSTMS, THEN SHOWERS WITH VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT
AT 7 SECONDS. PATCHY FOG IN THE EVENING. SHOWERS LIKELY IN THE
EVENING WITH VSBY 1 NM OR LESS.
TUE
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT
AT 8 SECONDS AND W 2 FT AT 4 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 3 SECONDS AND SE 2 FT AT 7 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: S 2 FT AT 6 SECONDS AND SE 2 FT AT 10 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 6 SECONDS AND E
1 FOOT AT 9 SECONDS.
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.
ANZ251-040300-
MASSACHUSETTS BAY AND IPSWICH BAY-
1003 AM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON
THIS AFTERNOON
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT.
SEAS AROUND 3 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND E 1 FOOT
AT 9 SECONDS. PATCHY FOG. SHOWERS. ISOLATED TSTMS. VSBY 1 TO
3 NM.
TONIGHT
SW WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 5 SECONDS AND E 2 FT AT 8 SECONDS. PATCHY FOG IN THE EVENING.
SHOWERS LIKELY IN THE EVENING WITH VSBY 1 TO 3 NM.
TUE
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: W
1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 8 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
S 1 FOOT AT 2 SECONDS AND SE 1 FOOT AT 7 SECONDS.
WED
SW WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. SEAS
1 FOOT OR LESS. WAVE DETAIL: SW 1 FOOT AT 2 SECONDS AND SE 1 FOOT
AT 7 SECONDS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SE 2 FT AT 3 SECONDS AND E 1 FOOT AT 8 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 5 TO 10 KT WITH GUSTS UP TO
20 KT. SEAS AROUND 2 FT.
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.
ANZ231-040300-
CAPE COD BAY-
1003 AM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON
THIS AFTERNOON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND E 1 FOOT AT
8 SECONDS. PATCHY FOG. A SLIGHT CHANCE OF SHOWERS WITH ISOLATED
TSTMS. A CHANCE OF SHOWERS.
TONIGHT
SW WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT, SUBSIDING TO 2 TO
3 FT AFTER MIDNIGHT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND SE
2 FT AT 9 SECONDS, BECOMING W 2 FT AT 3 SECONDS AND SE 1 FOOT AT
8 SECONDS. PATCHY FOG IN THE EVENING. SHOWERS LIKELY IN THE
EVENING WITH VSBY 1 NM OR LESS.
TUE
W WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
AROUND 2 FT IN THE MORNING, THEN 1 FOOT OR LESS. WAVE DETAIL: W
1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 9 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: SW 1 FOOT AT 2 SECONDS AND SE 1 FOOT AT 9 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS.
WAVE DETAIL: SW 1 FOOT AT 2 SECONDS AND E 1 FOOT AT 10 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND SE
2 FT AT 9 SECONDS.
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.
ANZ254-040300-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
1003 AM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON
THIS AFTERNOON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 5 TO 7 FT. WAVE DETAIL: S 7 FT AT 8 SECONDS AND E 5 FT AT
8 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS. ISOLATED TSTMS.
TONIGHT
SW WINDS 20 TO 25 KT, BECOMING W 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 5 TO 7 FT. WAVE DETAIL: S 7 FT
AT 8 SECONDS AND E 3 FT AT 8 SECONDS. SHOWERS LIKELY, MAINLY IN
THE EVENING. PATCHY FOG IN THE EVENING WITH VSBY 1 NM OR LESS.
TUE
W WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT, BECOMING SW IN
THE AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: W 5 FT AT 8 SECONDS
AND SE 3 FT AT 9 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW
4 FT AT 7 SECONDS AND E 1 FOOT AT 11 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: S 3 FT AT 7 SECONDS AND E 1 FOOT AT 10 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 6 SECONDS AND E
1 FOOT AT 9 SECONDS.
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.
ANZ255-040300-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
1003 AM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY EVENING
THIS AFTERNOON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT.
SEAS 6 TO 9 FT. WAVE DETAIL: S 9 FT AT 8 SECONDS AND E 1 FOOT AT
11 SECONDS. PATCHY FOG. ISOLATED TSTMS. A SLIGHT CHANCE OF
SHOWERS, THEN A CHANCE OF SHOWERS.
TONIGHT
SW WINDS 20 TO 25 KT, BECOMING W 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 6 TO 9 FT, SUBSIDING TO 5 TO
7 FT AFTER MIDNIGHT. WAVE DETAIL: S 9 FT AT 9 SECONDS AND E
1 FOOT AT 9 SECONDS, BECOMING SW 7 FT AT 8 SECONDS AND E 1 FOOT
AT 8 SECONDS. SHOWERS LIKELY IN THE EVENING. A CHANCE OF SHOWERS
AFTER MIDNIGHT. PATCHY FOG IN THE EVENING WITH VSBY 1 NM OR LESS.
TUE
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
4 TO 6 FT. WAVE DETAIL: S 6 FT AT 8 SECONDS AND E 1 FOOT AT
9 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
4 FT AT 7 SECONDS AND E 1 FOOT AT 9 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: SW 4 FT AT 7 SECONDS AND E 1 FOOT AT 8 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
WAVE DETAIL: S 4 FT AT 7 SECONDS AND E 1 FOOT AT 9 SECONDS.
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.
ANZ256-040300-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
1003 AM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY EVENING
THIS AFTERNOON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 7 TO 9 FT. WAVE DETAIL: E 9 FT AT 9 SECONDS AND S 9 FT AT
9 SECONDS. PATCHY FOG. ISOLATED TSTMS. A SLIGHT CHANCE OF
SHOWERS, THEN SHOWERS LIKELY.
TONIGHT
SW WINDS 20 TO 25 KT, BECOMING NW 15 TO 20 KT AFTER
MIDNIGHT. SEAS 7 TO 9 FT, SUBSIDING TO 5 TO 7 FT AFTER MIDNIGHT.
WAVE DETAIL: S 9 FT AT 9 SECONDS AND NE 4 FT AT 9 SECONDS,
BECOMING S 7 FT AT 8 SECONDS AND E 1 FOOT AT 8 SECONDS. SHOWERS
LIKELY, MAINLY IN THE EVENING. PATCHY FOG IN THE EVENING WITH
VSBY 1 TO 3 NM.
TUE
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
4 TO 6 FT. WAVE DETAIL: S 6 FT AT 8 SECONDS AND E 1 FOOT AT
9 SECONDS.
TUE NIGHT
S WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
4 FT AT 7 SECONDS AND SE 2 FT AT 9 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE
DETAIL: S 4 FT AT 7 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND E
1 FOOT AT 9 SECONDS.
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.
ANZ232-040300-
NANTUCKET SOUND-
1003 AM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
S WINDS AROUND 25 KT WITH GUSTS UP TO 40 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT AT 5 SECONDS AND E 1 FOOT AT
8 SECONDS. PATCHY FOG. ISOLATED TSTMS. A SLIGHT CHANCE OF
SHOWERS, THEN A CHANCE OF SHOWERS.
TONIGHT
SW WINDS 20 TO 25 KT, BECOMING W 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 4 FT
AT 5 SECONDS AND SE 2 FT AT 9 SECONDS. SHOWERS LIKELY, MAINLY IN
THE EVENING. PATCHY FOG IN THE EVENING WITH VSBY 1 NM OR LESS.
TUE
W WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND SE 1 FOOT AT
8 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 5 SECONDS AND SE 1 FOOT AT 8 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 2 FT AT 5 SECONDS AND SE 1 FOOT AT 7 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO
25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E
1 FOOT AT 8 SECONDS.
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.
ANZ233-040300-
VINEYARD SOUND-
1003 AM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 40 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: SW 6 FT AT 7 SECONDS AND E 4 FT AT
9 SECONDS. PATCHY FOG. ISOLATED TSTMS. A CHANCE OF SHOWERS, THEN
SHOWERS.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT, BECOMING
NW 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 4 TO
6 FT. WAVE DETAIL: SW 6 FT AT 8 SECONDS AND E 3 FT AT 9 SECONDS.
SHOWERS LIKELY, MAINLY IN THE EVENING. PATCHY FOG IN THE EVENING
WITH VSBY 1 TO 3 NM.
TUE
W WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 8 SECONDS AND E 1 FOOT AT
8 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
3 FT AT 7 SECONDS AND E 1 FOOT AT 8 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SW 3 FT AT 7 SECONDS AND SE 1 FOOT AT 7 SECONDS.
THU THROUGH FRI 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 7 SECONDS.
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.
ANZ234-040300-
BUZZARDS BAY-
1003 AM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
S WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: S 5 FT AT 5 SECONDS AND SE 4 FT AT
9 SECONDS. PATCHY FOG. ISOLATED TSTMS. A CHANCE OF SHOWERS, THEN
SHOWERS.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT, BECOMING
NW 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND SE 3 FT AT 9 SECONDS.
PATCHY FOG IN THE EVENING. SHOWERS LIKELY IN THE EVENING WITH
VSBY 1 TO 3 NM.
TUE
W WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 7 SECONDS AND SE 2 FT AT
8 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 5 SECONDS AND SE 2 FT AT 8 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: S 2 FT AT 7 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO
25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS.
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.
ANZ235-040300-
RHODE ISLAND SOUND-
1003 AM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON
THIS AFTERNOON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT.
SEAS 5 TO 8 FT. WAVE DETAIL: S 8 FT AT 8 SECONDS AND E 8 FT AT
9 SECONDS. PATCHY FOG. SHOWERS WITH ISOLATED TSTMS.
TONIGHT
SW WINDS 20 TO 25 KT, BECOMING NW 15 TO 20 KT AFTER
MIDNIGHT. SEAS 5 TO 8 FT, SUBSIDING TO 4 TO 6 FT AFTER MIDNIGHT.
WAVE DETAIL: E 8 FT AT 9 SECONDS AND SW 8 FT AT 9 SECONDS,
BECOMING SW 6 FT AT 8 SECONDS AND E 1 FOOT AT 8 SECONDS. PATCHY
FOG IN THE EVENING. SHOWERS LIKELY IN THE EVENING WITH VSBY 1 TO
3 NM.
TUE
W WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
3 TO 5 FT. WAVE DETAIL: S 5 FT AT 8 SECONDS AND E 3 FT AT
8 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SE
4 FT AT 7 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: S 3 FT AT 7 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 15 TO 20 KT. SEAS 2 TO 4 FT.
WAVE DETAIL: SE 4 FT AT 7 SECONDS.
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.
ANZ237-040300-
BLOCK ISLAND SOUND-
1003 AM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON
THIS AFTERNOON
S WINDS AROUND 20 KT WITH GUSTS UP TO 30 KT.
SEAS 5 TO 7 FT. WAVE DETAIL: S 7 FT AT 9 SECONDS AND E 5 FT AT
9 SECONDS. PATCHY FOG. SHOWERS WITH ISOLATED TSTMS. VSBY 1 TO
3 NM.
TONIGHT
SW WINDS 15 TO 20 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SW 7 FT
AT 9 SECONDS AND E 5 FT AT 9 SECONDS. PATCHY FOG IN THE EVENING.
SHOWERS LIKELY IN THE EVENING WITH VSBY 1 TO 3 NM.
TUE
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
3 TO 5 FT. WAVE DETAIL: S 5 FT AT 8 SECONDS AND E 1 FOOT AT
8 SECONDS.
TUE NIGHT
S WINDS 5 TO 10 KT, DIMINISHING TO AROUND 5 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND E
1 FOOT AT 8 SECONDS.
WED
S WINDS AROUND 5 KT, INCREASING TO 5 TO 10 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS. A
CHANCE OF SHOWERS IN THE MORNING.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 7 SECONDS AND E 1 FOOT AT 8 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 4 FT.
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.
ANZ230-040300-
BOSTON HARBOR-
1003 AM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON
THIS AFTERNOON
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT.
WAVES AROUND 2 FT. PATCHY FOG. ISOLATED TSTMS. SHOWERS, THEN A
CHANCE OF SHOWERS. VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. WAVES AROUND 2 FT. PATCHY FOG IN THE EVENING. SHOWERS
LIKELY IN THE EVENING WITH VSBY 1 TO 3 NM.
TUE
W WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
WED
S WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
THU THROUGH FRI NIGHT
SW WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
WINDS AND WAVES 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.
ANZ236-040300-
NARRAGANSETT BAY-
1003 AM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON
THIS AFTERNOON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT.
WAVES 3 TO 5 FT. PATCHY FOG. ISOLATED TSTMS. A SLIGHT CHANCE OF
SHOWERS, THEN SHOWERS. VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, BECOMING
NW 5 TO 10 KT AFTER MIDNIGHT. WAVES 2 TO 4 FT. PATCHY FOG IN THE
EVENING. SHOWERS LIKELY IN THE EVENING WITH VSBY 1 TO 3 NM.
TUE
W WINDS AROUND 5 KT, BECOMING SW IN THE AFTERNOON. WAVES
2 TO 3 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT, DIMINISHING TO AROUND 5 KT
AFTER MIDNIGHT. WAVES AROUND 2 FT.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
THU THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. WAVES 2 TO 3 FT.
WINDS AND WAVES 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.
ANZ280-040300-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
1003 AM EDT MON AUG 3 2026
THIS AFTERNOON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 5 TO 7 FT. WAVE DETAIL: S 7 FT AT 8 SECONDS AND E 1 FOOT AT
8 SECONDS. PATCHY FOG. A SLIGHT CHANCE OF SHOWERS. A CHANCE OF
SHOWERS.
TONIGHT
SW WINDS 20 TO 25 KT, BECOMING W 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SW 7 FT
AT 8 SECONDS AND SE 4 FT AT 8 SECONDS. SHOWERS LIKELY, MAINLY IN
THE EVENING. PATCHY FOG IN THE EVENING WITH VSBY 1 NM OR LESS.
TUE
W WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE MORNING.
SEAS 3 TO 5 FT. WAVE DETAIL: W 5 FT AT 7 SECONDS AND SE 2 FT AT
9 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW
4 FT AT 7 SECONDS AND SE 2 FT AT 10 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: S 3 FT AT 7 SECONDS AND E 1 FOOT AT 11 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 6 SECONDS AND E
1 FOOT AT 9 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.
ANZ281-040300-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
1003 AM EDT MON AUG 3 2026
THIS AFTERNOON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 5 TO 7 FT, BUILDING TO 6 TO 9 FT. WAVE DETAIL: S 7 FT AT
8 SECONDS AND E 1 FOOT AT 8 SECONDS, BECOMING S 8 FT AT 8 SECONDS
AND E 1 FOOT AT 8 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS.
TONIGHT
SW WINDS 20 TO 25 KT, BECOMING W 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: S 8 FT AT 8 SECONDS AND E
1 FOOT AT 8 SECONDS, BECOMING SW 8 FT AT 8 SECONDS AND E 1 FOOT
AT 8 SECONDS. A CHANCE OF SHOWERS. PATCHY FOG IN THE EVENING WITH
VSBY 1 NM OR LESS.
TUE
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING SW
5 TO 10 KT IN THE AFTERNOON. SEAS 5 TO 7 FT, SUBSIDING TO 4 TO
5 FT IN THE AFTERNOON. WAVE DETAIL: SW 6 FT AT 8 SECONDS AND E
1 FOOT AT 9 SECONDS, BECOMING SW 5 FT AT 8 SECONDS AND E 1 FOOT
AT 9 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
4 FT AT 7 SECONDS AND E 1 FOOT AT 11 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE
DETAIL: S 4 FT AT 7 SECONDS AND E 1 FOOT AT 10 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
25 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND E
1 FOOT AT 9 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.
ANZ282-040300-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
1003 AM EDT MON AUG 3 2026
THIS AFTERNOON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 8 TO 10 FT. WAVE DETAIL: S 9 FT AT 8 SECONDS AND E 1 FOOT AT
9 SECONDS. PATCHY FOG. SHOWERS LIKELY WITH ISOLATED TSTMS.
TONIGHT
SW WINDS 20 TO 25 KT, BECOMING W 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 8 TO 10 FT, SUBSIDING TO 6 TO
9 FT AFTER MIDNIGHT. WAVE DETAIL: SW 9 FT AT 8 SECONDS AND E
1 FOOT AT 8 SECONDS, BECOMING SW 8 FT AT 8 SECONDS. SHOWERS.
PATCHY FOG IN THE EVENING WITH VSBY 1 TO 3 NM.
TUE
NW WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. SEAS
5 TO 7 FT, SUBSIDING TO 4 TO 5 FT IN THE AFTERNOON. WAVE DETAIL:
S 6 FT AT 8 SECONDS AND E 1 FOOT AT 12 SECONDS, BECOMING S 5 FT
AT 8 SECONDS AND E 1 FOOT AT 9 SECONDS.
TUE NIGHT
S WINDS AROUND 5 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
4 FT AT 7 SECONDS AND E 1 FOOT AT 9 SECONDS.
WED
S WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE DETAIL: S 3 FT
AT 7 SECONDS AND E 1 FOOT AT 10 SECONDS. A CHANCE OF SHOWERS IN
THE MORNING.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S
5 FT AT 7 SECONDS AND E 1 FOOT AT 10 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 4 TO 5 FT.
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.
ANZ283-040300-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
1003 AM EDT MON AUG 3 2026
THIS AFTERNOON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 8 TO 9 FT, BUILDING TO 9 TO 11 FT. WAVE DETAIL: S 9 FT AT
8 SECONDS AND E 1 FOOT AT 9 SECONDS, BECOMING E 11 FT AT
9 SECONDS AND S 10 FT AT 9 SECONDS. PATCHY FOG. ISOLATED TSTMS. A
SLIGHT CHANCE OF SHOWERS, THEN A CHANCE OF SHOWERS.
TONIGHT
SW WINDS 20 TO 25 KT, BECOMING W 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: S 9 FT AT 8 SECONDS AND NE
1 FOOT AT 9 SECONDS, BECOMING S 8 FT AT 8 SECONDS AND E 1 FOOT AT
7 SECONDS. SHOWERS LIKELY, MAINLY IN THE EVENING. PATCHY FOG IN
THE EVENING WITH VSBY 1 TO 3 NM.
TUE
N WINDS AROUND 10 KT, BECOMING E IN THE AFTERNOON. SEAS
4 TO 6 FT. WAVE DETAIL: S 6 FT AT 8 SECONDS AND NE 1 FOOT AT
10 SECONDS.
TUE NIGHT
S WINDS AROUND 5 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
4 FT AT 7 SECONDS AND SE 2 FT AT 11 SECONDS.
WED
S WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT
7 SECONDS AND E 1 FOOT AT 10 SECONDS. A CHANCE OF SHOWERS IN THE
MORNING.
WED NIGHT
SW WINDS AROUND 10 KT. SEAS 4 TO 5 FT. WAVE DETAIL:
S 5 FT AT 7 SECONDS AND E 1 FOOT AT 10 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
25 KT. SEAS 4 TO 5 FT.
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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