998
FZUS51 KBOX 302305
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
705 PM EDT TUE JUN 30 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-011200-
705 PM EDT TUE JUN 30 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
A BERMUDA HIGH WILL RESULT IN PERSISTENT SW FLOW FOR THE REMAINDER
OF THIS WEEK ALONG WITH INCREASING HUMIDITY. LONG SW FETCH WILL
RESULT IN A PERIOD OF 3 TO 6 FOOT SEAS ACROSS THE SRN WATERS WED
INTO THU. A COLD FRONT WILL CROSS THE WATERS SOMETIME LATER SAT
OR SAT NIGHT.
ANZ250-011200-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
705 PM EDT TUE JUN 30 2026
TONIGHT
S WINDS AROUND 15 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 1 FOOT AT
4 SECONDS. A CHANCE OF SHOWERS. A SLIGHT CHANCE OF TSTMS AFTER
MIDNIGHT.
WED
SW WINDS 10 TO 15 KT, BECOMING S 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SW
3 FT AT 5 SECONDS AND E 1 FOOT AT 5 SECONDS. A CHANCE OF SHOWERS
IN THE MORNING.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 4 SECONDS AND SE 1 FOOT AT
10 SECONDS.
THU
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND SE 1 FOOT AT
10 SECONDS.
THU NIGHT AND FRI
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND SE 1 FOOT
AT 9 SECONDS.
FRI NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 9 SECONDS.
SAT AND SAT NIGHT
W WINDS AROUND 5 KT. SEAS AROUND 2 FT. A
CHANCE OF SHOWERS.
SUN
NE WINDS AROUND 5 KT. SEAS AROUND 2 FT.
SUN NIGHT
E WINDS AROUND 5 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.
ANZ251-011200-
MASSACHUSETTS BAY AND IPSWICH BAY-
705 PM EDT TUE JUN 30 2026
TONIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: S 2 FT AT 5 SECONDS AND E 1 FOOT AT 4 SECONDS.
A CHANCE OF SHOWERS. A SLIGHT CHANCE OF TSTMS AFTER MIDNIGHT.
WED
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND E 1 FOOT AT
4 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
WED NIGHT
SW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL:
SW 3 FT AT 4 SECONDS AND E 1 FOOT AT 10 SECONDS.
THU
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: SW
2 FT AT 3 SECONDS AND E 1 FOOT AT 10 SECONDS.
THU NIGHT THROUGH FRI NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND
E 1 FOOT AT 10 SECONDS.
SAT AND SAT NIGHT
W WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS.
WAVE DETAIL: SW 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 9 SECONDS. A
CHANCE OF SHOWERS AND TSTMS.
SUN
NE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS.
SUN NIGHT
E 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.
ANZ231-011200-
CAPE COD BAY-
705 PM EDT TUE JUN 30 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY EVENING...
TONIGHT
S 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
6 SECONDS. A CHANCE OF SHOWERS.
WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND E 1 FOOT AT
5 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 4 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 1 FOOT AT
10 SECONDS. PATCHY FOG AFTER MIDNIGHT.
THU
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 SE 1 FOOT AT
10 SECONDS.
THU 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 SE 1 FOOT AT
10 SECONDS.
FRI AND FRI NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 8 SECONDS.
SAT AND SAT NIGHT
W WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. A
CHANCE OF SHOWERS.
SUN
NE WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS.
SUN NIGHT
SE WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. 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.
ANZ254-011200-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
705 PM EDT TUE JUN 30 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT WEDNESDAY THROUGH
LATE THURSDAY NIGHT...
TONIGHT
S 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 NE 1 FOOT AT
3 SECONDS. A CHANCE OF SHOWERS.
WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND E 1 FOOT AT
5 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND SE 1 FOOT AT
10 SECONDS. PATCHY FOG AFTER MIDNIGHT.
THU
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 1 FOOT AT
10 SECONDS.
THU NIGHT THROUGH FRI 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
SE 1 FOOT AT 9 SECONDS.
SAT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT
6 SECONDS AND NW 1 FOOT AT 3 SECONDS.
SAT NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS.
SUN
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
SUN 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.
ANZ255-011200-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
705 PM EDT TUE JUN 30 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT WEDNESDAY THROUGH
LATE THURSDAY NIGHT...
TONIGHT
S WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: W 4 FT AT 6 SECONDS AND SE
2 FT AT 10 SECONDS.
WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 5 FT AT 5 SECONDS AND NW 2 FT AT 5 SECONDS.
WED NIGHT
SW WINDS AROUND 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 5 FT. WAVE DETAIL: W 5 FT AT 6 SECONDS AND SE 1 FOOT AT
10 SECONDS.
THU
SW WINDS AROUND 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: W 5 FT AT 6 SECONDS AND SE 1 FOOT AT
10 SECONDS.
THU NIGHT AND FRI
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: W 5 FT AT 6 SECONDS AND SE 1 FOOT AT
10 SECONDS.
FRI NIGHT
W WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: W 4 FT AT 5 SECONDS
AND SE 1 FOOT AT 9 SECONDS.
SAT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT.
SAT NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS.
SUN
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SUN 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.
ANZ256-011200-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
705 PM EDT TUE JUN 30 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT WEDNESDAY THROUGH
LATE THURSDAY NIGHT...
TONIGHT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT
AT 5 SECONDS AND SE 2 FT AT 10 SECONDS.
WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
5 FT. WAVE DETAIL: W 5 FT AT 5 SECONDS AND SE 2 FT AT 10 SECONDS.
WED NIGHT
SW WINDS AROUND 20 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 6 FT. WAVE DETAIL: W 6 FT AT 6 SECONDS AND SE 1 FOOT AT
10 SECONDS.
THU
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 1 FOOT AT
10 SECONDS.
THU NIGHT THROUGH FRI NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: W 5 FT AT 6 SECONDS AND SE
1 FOOT AT 9 SECONDS.
SAT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
3 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND NW 1 FOOT AT
3 SECONDS.
SAT NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS.
SUN
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SUN 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.
ANZ232-011200-
NANTUCKET SOUND-
705 PM EDT TUE JUN 30 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY EVENING...
TONIGHT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT WITH
GUSTS UP TO 25 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
3 FT AT 4 SECONDS AND NE 1 FOOT AT 5 SECONDS. A SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT.
WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SW 4 FT AT 4 SECONDS AND E 1 FOOT AT
5 SECONDS.
WED NIGHT
SW WINDS AROUND 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 4 SECONDS AND SE 1 FOOT AT
10 SECONDS.
THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS AROUND
3 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND SE 1 FOOT AT
10 SECONDS.
THU NIGHT THROUGH FRI NIGHT
W 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
SE 1 FOOT AT 9 SECONDS.
SAT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
2 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE 1 FOOT AT
9 SECONDS.
SAT NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
SUN
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
SUN NIGHT
E 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.
ANZ233-011200-
VINEYARD SOUND-
705 PM EDT TUE JUN 30 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY EVENING...
TONIGHT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT WITH
GUSTS UP TO 25 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
3 FT AT 5 SECONDS AND NE 1 FOOT AT 6 SECONDS. A SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT.
WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
4 FT. WAVE DETAIL: W 4 FT AT 3 SECONDS AND SW 4 FT AT 6 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 6 SECONDS AND SE 1 FOOT AT
10 SECONDS.
THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND SE 1 FOOT AT
9 SECONDS.
THU NIGHT THROUGH FRI NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: W 4 FT AT 6 SECONDS AND SE
1 FOOT AT 9 SECONDS.
SAT AND SAT NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE 1 FOOT
AT 9 SECONDS. A CHANCE OF SHOWERS.
SUN
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
SUN 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.
ANZ234-011200-
BUZZARDS BAY-
705 PM EDT TUE JUN 30 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY EVENING...
TONIGHT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 3 FT
AT 4 SECONDS AND NE 1 FOOT AT 6 SECONDS. A SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT.
WED
SW 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: SW
4 FT AT 5 SECONDS AND E 1 FOOT AT 5 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 1 FOOT AT
10 SECONDS.
THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SW 4 FT AT 6 SECONDS AND SE 2 FT AT
10 SECONDS.
THU NIGHT THROUGH FRI 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
SE 1 FOOT AT 9 SECONDS.
SAT AND SAT NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE 1 FOOT
AT 10 SECONDS. A CHANCE OF SHOWERS.
SUN
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
SUN 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.
ANZ235-011200-
RHODE ISLAND SOUND-
705 PM EDT TUE JUN 30 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY EVENING...
TONIGHT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT WITH
GUSTS UP TO 25 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: SW
4 FT AT 5 SECONDS AND E 1 FOOT AT 4 SECONDS. A SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT.
WED
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 5 FT AT 5 SECONDS AND E 1 FOOT AT
4 SECONDS.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND W 3 FT AT
4 SECONDS.
THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND SE 1 FOOT AT
10 SECONDS.
THU NIGHT THROUGH FRI NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 6 SECONDS AND
SE 1 FOOT AT 10 SECONDS.
SAT AND SAT NIGHT
W 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 SE 1 FOOT
AT 9 SECONDS. A CHANCE OF SHOWERS.
SUN
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SUN 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.
ANZ237-011200-
BLOCK ISLAND SOUND-
705 PM EDT TUE JUN 30 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY EVENING...
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND SE 2 FT AT 4 SECONDS.
A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
WED
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 E 1 FOOT AT
4 SECONDS.
WED 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 1 FOOT AT
10 SECONDS.
THU
SW 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: SW
4 FT AT 7 SECONDS AND W 2 FT AT 4 SECONDS.
THU NIGHT AND FRI
SW WINDS 10 TO 15 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 9 SECONDS.
FRI NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE
DETAIL: SW 3 FT AT 5 SECONDS AND SE 1 FOOT AT 9 SECONDS.
SAT AND SAT NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
SUN
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
SUN 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.
ANZ230-011200-
BOSTON HARBOR-
705 PM EDT TUE JUN 30 2026
TONIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES
AROUND 2 FT. A CHANCE OF SHOWERS.
WED
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES AROUND
2 FT.
WED NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. WAVES AROUND 2 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS, THEN AROUND
2 FT IN THE AFTERNOON.
THU NIGHT THROUGH FRI NIGHT
W WINDS 5 TO 10 KT. WAVES AROUND
2 FT.
SAT AND SAT NIGHT
W WINDS 5 TO 10 KT. WAVES AROUND 2 FT, THEN
1 FOOT OR LESS. A CHANCE OF SHOWERS AND TSTMS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. A CHANCE
OF SHOWERS.
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.
ANZ236-011200-
NARRAGANSETT BAY-
705 PM EDT TUE JUN 30 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY EVENING...
TONIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. WAVES AROUND 2 FT. A SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT.
WED
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. WAVES 2 TO 3 FT.
WED NIGHT
SW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. WAVES 2 TO 3 FT.
THU
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. WAVES 2 TO 3 FT.
THU NIGHT THROUGH FRI NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. WAVES 2 TO 3 FT.
SAT AND SAT NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
DIMINISHING TO 5 TO 10 KT. WAVES AROUND 2 FT. A CHANCE OF
SHOWERS.
SUN
E WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
SUN NIGHT
SE 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.
ANZ280-011200-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
705 PM EDT TUE JUN 30 2026
TONIGHT
S 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 E 1 FOOT AT
4 SECONDS. A CHANCE OF SHOWERS. A SLIGHT CHANCE OF TSTMS AFTER
MIDNIGHT.
WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
5 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND E 1 FOOT AT
5 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 5 FT. WAVE DETAIL: SW 5 FT AT 5 SECONDS AND SE 1 FOOT AT
10 SECONDS.
THU
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 1 FOOT AT
10 SECONDS.
THU NIGHT THROUGH FRI 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
SE 1 FOOT AT 10 SECONDS.
SAT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT
AT 6 SECONDS AND W 1 FOOT AT 3 SECONDS.
SAT NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
SUN AND SUN NIGHT
NE WINDS 5 TO 10 KT, BECOMING SE. 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.
ANZ281-011200-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
705 PM EDT TUE JUN 30 2026
TONIGHT
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 3 FT
AT 4 SECONDS AND SE 2 FT AT 10 SECONDS. PATCHY FOG AFTER
MIDNIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT WITH VSBY 1 NM OR
LESS.
WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND E 1 FOOT AT
5 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM, DECREASING TO 1 NM OR LESS
IN THE AFTERNOON.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 6 FT. WAVE DETAIL: W 5 FT AT 6 SECONDS AND SE 1 FOOT AT
10 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS, INCREASING TO 1 TO
3 NM AFTER MIDNIGHT.
THU
SW WINDS AROUND 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
5 FT. WAVE DETAIL: W 5 FT AT 6 SECONDS AND SE 1 FOOT AT
10 SECONDS.
THU NIGHT THROUGH FRI NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: W 5 FT AT 6 SECONDS AND SE
1 FOOT AT 10 SECONDS.
SAT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 6 SECONDS AND NW 1 FOOT AT 3 SECONDS.
SAT NIGHT AND SUN
W WINDS 5 TO 10 KT, BECOMING N. SEAS 2 TO
3 FT. A CHANCE OF SHOWERS.
SUN NIGHT
SE WINDS AROUND 5 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.
ANZ282-011200-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
705 PM EDT TUE JUN 30 2026
TONIGHT
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: W
3 FT AT 4 SECONDS AND SE 2 FT AT 10 SECONDS.
WED
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: W 5 FT
AT 6 SECONDS AND SE 2 FT AT 10 SECONDS. PATCHY FOG IN THE
AFTERNOON WITH VSBY 1 NM OR LESS.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
5 TO 6 FT. WAVE DETAIL: W 6 FT AT 6 SECONDS AND SE 1 FOOT AT
10 SECONDS. PATCHY FOG IN THE EVENING. A CHANCE OF SHOWERS AFTER
MIDNIGHT. VSBY 1 NM OR LESS IN THE EVENING.
THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
6 FT. WAVE DETAIL: W 6 FT AT 6 SECONDS AND SE 1 FOOT AT
10 SECONDS.
THU NIGHT THROUGH FRI NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: W 5 FT AT 6 SECONDS AND SE
1 FOOT AT 9 SECONDS.
SAT
W WINDS AROUND 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: W 3 FT
AT 5 SECONDS AND SE 1 FOOT AT 9 SECONDS.
SAT NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 3 FT. A CHANCE OF
SHOWERS.
SUN
W WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS.
SUN NIGHT
SE WINDS 5 TO 10 KT. SEAS 3 TO 4 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.
ANZ283-011200-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
705 PM EDT TUE JUN 30 2026
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 2 FT AT
10 SECONDS.
WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: W 5 FT AT 6 SECONDS AND SE 2 FT AT 10 SECONDS.
WED NIGHT
SW WINDS AROUND 20 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 6 FT. WAVE DETAIL: W 6 FT AT 6 SECONDS AND SE 1 FOOT AT
10 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
6 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND SE 1 FOOT AT
10 SECONDS.
THU NIGHT THROUGH FRI NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: W 5 FT AT 5 SECONDS AND SE
1 FOOT AT 10 SECONDS.
SAT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND NW 1 FOOT AT
4 SECONDS.
SAT NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 3 FT. A CHANCE OF SHOWERS.
SUN
W WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
SUN NIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 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.
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