608
FZUS51 KBOX 131104
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
703 AM EDT WED AUG 13 2025
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 25 NM
ANZ200-140000-
703 AM EDT WED AUG 13 2025
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
HIGH PRES IS CONTINUING TO BRING RATHER TRANQUIL BOATING CONDITIONS
THROUGH MIDWEEK. WINDS GRADUALLY INCREASE FROM THE SW TODAY AND WED
BUT REMAIN BELOW SMALL CRAFT ADVISORY CRITERIA FOR MOST AREAS.
NORTHERN OUTER WATERS MAY APPROACH 25 KTS BRIEFLY LATER WEDNESDAY. A
COLD FRONT SHOULD CROSS THE WATERS THU NIGHT INTO FRI.
ANZ250-140000-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
703 AM EDT WED AUG 13 2025
TODAY
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS
UP TO 25 KT THIS AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT
AT 4 SECONDS AND E 2 FT AT 8 SECONDS. AREAS OF FOG THIS MORNING
WITH VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND E 2 FT AT 8 SECONDS.
AREAS OF FOG AFTER MIDNIGHT WITH VSBY 1 TO 3 NM.
THU
S WINDS AROUND 10 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND E 2 FT AT
7 SECONDS. SHOWERS LIKELY. AREAS OF FOG IN THE MORNING WITH VSBY
1 TO 3 NM.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT WITH
GUSTS UP TO 25 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 3 SECONDS AND SE 2 FT AT 7 SECONDS. SHOWERS LIKELY IN THE
EVENING.
FRI AND FRI NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: N 4 FT AT 5 SECONDS AND E 1 FOOT AT
16 SECONDS.
SAT THROUGH SUN
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND E 2 FT AT
7 SECONDS.
SUN NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 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.
ANZ251-140000-
MASSACHUSETTS BAY AND IPSWICH BAY-
703 AM EDT WED AUG 13 2025
TODAY
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT THIS AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT
AT 4 SECONDS AND E 2 FT AT 8 SECONDS. AREAS OF FOG THIS MORNING.
ISOLATED TSTMS THIS AFTERNOON. SOME TSTMS MAY BE SEVERE WITH
GUSTY WINDS AND HEAVY RAINFALL. VSBY 1 TO 3 NM THIS MORNING.
TONIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND E
2 FT AT 8 SECONDS.
THU
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT
AT 3 SECONDS AND E 2 FT AT 7 SECONDS. SHOWERS LIKELY.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: NW
2 FT AT 3 SECONDS AND E 2 FT AT 6 SECONDS. SHOWERS LIKELY IN THE
EVENING.
FRI
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: N 3 FT AT 4 SECONDS AND E 1 FOOT AT
16 SECONDS.
FRI NIGHT
E WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 6 SECONDS AND E 1 FOOT AT
15 SECONDS.
SAT THROUGH SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT.
SUN NIGHT
W WINDS AROUND 15 KT WITH GUSTS UP TO 20 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.
ANZ231-140000-
CAPE COD BAY-
703 AM EDT WED AUG 13 2025
TODAY
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS
UP TO 20 KT THIS AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT
AT 3 SECONDS AND E 1 FOOT AT 8 SECONDS. AREAS OF FOG THIS MORNING
WITH VSBY 1 NM OR LESS.
TONIGHT
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 E 1 FOOT AT
8 SECONDS. AREAS OF FOG AFTER MIDNIGHT WITH VSBY 1 TO 3 NM.
THU
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S
1 FOOT AT 3 SECONDS AND E 1 FOOT AT 7 SECONDS. SHOWERS LIKELY.
AREAS OF FOG IN THE MORNING.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 1 FOOT AT 2 SECONDS AND SE 1 FOOT AT 7 SECONDS. SHOWERS LIKELY
IN THE EVENING.
FRI AND FRI NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND E 1 FOOT AT
16 SECONDS.
SAT AND SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING S. SEAS AROUND
2 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS AND E 1 FOOT AT
15 SECONDS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT.
SUN NIGHT
W WINDS AROUND 15 KT WITH GUSTS UP TO 25 KT. SEAS
2 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.
ANZ254-140000-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
703 AM EDT WED AUG 13 2025
TODAY
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH
GUSTS UP TO 20 KT THIS AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 3 SECONDS AND E 2 FT AT 8 SECONDS. AREAS OF FOG THIS
MORNING WITH VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND E 2 FT AT 8 SECONDS.
AREAS OF FOG AFTER MIDNIGHT WITH VSBY 1 TO 3 NM.
THU
S WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT
AT 4 SECONDS AND E 2 FT AT 8 SECONDS. A CHANCE OF SHOWERS. AREAS
OF FOG IN THE MORNING WITH VSBY 1 TO 3 NM.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S
2 FT AT 4 SECONDS AND SE 2 FT AT 8 SECONDS. A CHANCE OF SHOWERS.
FRI AND FRI NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: NE 3 FT AT 8 SECONDS AND S 2 FT AT
5 SECONDS.
SAT THROUGH SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND NE 3 FT AT
6 SECONDS.
SUN NIGHT
W WINDS AROUND 15 KT WITH GUSTS UP TO 25 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.
ANZ255-140000-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
703 AM EDT WED AUG 13 2025
TODAY
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH
GUSTS UP TO 20 KT THIS AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 4 SECONDS AND E 2 FT AT 8 SECONDS. AREAS OF FOG THIS
MORNING WITH VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 4 SECONDS AND E 2 FT AT 8 SECONDS. AREAS OF FOG AFTER
MIDNIGHT WITH VSBY 1 TO 3 NM.
THU
S WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT
AT 4 SECONDS AND E 2 FT AT 8 SECONDS. A CHANCE OF SHOWERS. AREAS
OF FOG IN THE MORNING. VSBY 1 TO 3 NM IN THE AFTERNOON.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND
SE 2 FT AT 8 SECONDS. AREAS OF FOG IN THE EVENING. A CHANCE OF
SHOWERS IN THE EVENING WITH VSBY 1 TO 3 NM.
FRI AND FRI NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: NE 3 FT AT 7 SECONDS AND SW 2 FT AT
5 SECONDS.
SAT THROUGH SUN
SW WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SW 3 FT AT 4 SECONDS AND NE 2 FT AT 6 SECONDS.
SUN NIGHT
SW WINDS 15 TO 20 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.
ANZ256-140000-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
703 AM EDT WED AUG 13 2025
TODAY
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT THIS AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND E 2 FT AT
8 SECONDS. AREAS OF FOG THIS MORNING WITH VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS AROUND 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND
E 2 FT AT 8 SECONDS. AREAS OF FOG AFTER MIDNIGHT WITH VSBY 1 TO
3 NM.
THU
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT
AT 4 SECONDS AND E 2 FT AT 8 SECONDS. SHOWERS LIKELY, MAINLY IN
THE MORNING. AREAS OF FOG IN THE MORNING.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT 5 SECONDS AND SE
2 FT AT 8 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
FRI AND FRI NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: NE 3 FT AT 5 SECONDS AND S 2 FT AT
5 SECONDS.
SAT THROUGH SUN
SW WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SW 3 FT AT 4 SECONDS AND NE 2 FT AT 6 SECONDS.
SUN NIGHT
W WINDS 15 TO 20 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.
ANZ232-140000-
NANTUCKET SOUND-
703 AM EDT WED AUG 13 2025
TODAY
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT THIS AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND E 1 FOOT AT
8 SECONDS. AREAS OF FOG THIS MORNING WITH VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND
E 1 FOOT AT 8 SECONDS. AREAS OF FOG AFTER MIDNIGHT WITH VSBY 1 TO
3 NM.
THU
SW WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW
2 FT AT 3 SECONDS AND E 1 FOOT AT 7 SECONDS. SHOWERS LIKELY.
AREAS OF FOG IN THE MORNING.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 3 SECONDS
AND E 1 FOOT AT 7 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
FRI AND FRI NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 5 SECONDS AND SW 1 FOOT
AT 5 SECONDS.
SAT THROUGH SUN
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 NE 1 FOOT
AT 4 SECONDS.
SUN NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 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.
ANZ233-140000-
VINEYARD SOUND-
703 AM EDT WED AUG 13 2025
TODAY
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT THIS AFTERNOON.
SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE 1 FOOT
AT 8 SECONDS. AREAS OF FOG. VSBY 1 NM OR LESS, INCREASING TO 1 TO
3 NM THIS AFTERNOON.
TONIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND
SE 1 FOOT AT 8 SECONDS. AREAS OF FOG AFTER MIDNIGHT WITH VSBY
1 TO 3 NM.
THU
SW WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW
2 FT AT 4 SECONDS AND SE 1 FOOT AT 9 SECONDS. SHOWERS LIKELY.
AREAS OF FOG IN THE MORNING.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 4 SECONDS
AND SE 1 FOOT AT 8 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
FRI AND FRI NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND SW 1 FOOT
AT 5 SECONDS.
SAT AND SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING S. SEAS AROUND
2 FT. WAVE DETAIL: NE 1 FOOT AT 3 SECONDS AND S 1 FOOT AT
5 SECONDS.
SUN
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT.
SUN NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 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.
ANZ234-140000-
BUZZARDS BAY-
703 AM EDT WED AUG 13 2025
TODAY
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT THIS AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE 1 FOOT
AT 8 SECONDS. AREAS OF FOG. VSBY 1 NM OR LESS, INCREASING TO 1 TO
3 NM THIS AFTERNOON.
TONIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE
1 FOOT AT 8 SECONDS. AREAS OF FOG AFTER MIDNIGHT WITH VSBY 1 TO
3 NM.
THU
SW WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW
1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS. SHOWERS LIKELY.
AREAS OF FOG IN THE MORNING.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 4 SECONDS
AND SE 1 FOOT AT 8 SECONDS. SHOWERS LIKELY IN THE EVENING.
FRI AND FRI NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: N 2 FT AT 3 SECONDS AND SW 1 FOOT AT
5 SECONDS.
SAT AND SAT NIGHT
E WINDS 5 TO 10 KT, BECOMING S. SEAS 1 FOOT
OR LESS, THEN AROUND 2 FT. WAVE DETAIL: NE 1 FOOT AT 2 SECONDS
AND S 1 FOOT AT 5 SECONDS, BECOMING S 1 FOOT AT 3 SECONDS AND SE
1 FOOT AT 6 SECONDS.
SUN
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT.
SUN NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
2 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.
ANZ235-140000-
RHODE ISLAND SOUND-
703 AM EDT WED AUG 13 2025
TODAY
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT THIS AFTERNOON.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE 2 FT AT
8 SECONDS. AREAS OF FOG. VSBY 1 NM OR LESS, INCREASING TO 1 TO
3 NM THIS AFTERNOON.
TONIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE
1 FOOT AT 8 SECONDS. AREAS OF FOG AFTER MIDNIGHT WITH VSBY 1 TO
3 NM.
THU
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW
2 FT AT 4 SECONDS AND SE 1 FOOT AT 9 SECONDS. SHOWERS LIKELY.
AREAS OF FOG IN THE MORNING.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT AT 5 SECONDS AND
SE 1 FOOT AT 9 SECONDS. AREAS OF FOG IN THE EVENING. A CHANCE OF
SHOWERS IN THE EVENING WITH VSBY 1 TO 3 NM.
FRI AND FRI NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 5 SECONDS AND S 2 FT AT
5 SECONDS.
SAT THROUGH SUN
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 2 FT AT
6 SECONDS.
SUN NIGHT
W WINDS 15 TO 20 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.
ANZ237-140000-
BLOCK ISLAND SOUND-
703 AM EDT WED AUG 13 2025
TODAY
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH
GUSTS UP TO 20 KT THIS AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 3 SECONDS AND E 2 FT AT 8 SECONDS. AREAS OF FOG THIS
MORNING WITH VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 2 FT AT 4 SECONDS AND E 2 FT AT 8 SECONDS. AREAS OF
FOG AFTER MIDNIGHT WITH VSBY 1 TO 3 NM.
THU
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW
2 FT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS. SHOWERS LIKELY.
AREAS OF FOG IN THE MORNING.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: W 2 FT AT 5 SECONDS AND SE 1 FOOT AT
9 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
FRI AND FRI NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 5 SECONDS AND S 1 FOOT AT
5 SECONDS.
SAT THROUGH 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 2 FT AT
6 SECONDS.
SUN NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 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.
ANZ230-140000-
BOSTON HARBOR-
703 AM EDT WED AUG 13 2025
TODAY
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS
UP TO 20 KT THIS AFTERNOON. WAVES 1 FOOT OR LESS, THEN AROUND
2 FT THIS AFTERNOON. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF
TSTMS THIS AFTERNOON. SOME TSTMS MAY BE SEVERE WITH GUSTY WINDS
AND HEAVY RAINFALL.
TONIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. WAVES AROUND 2 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. SHOWERS LIKELY.
SCATTERED TSTMS IN THE AFTERNOON. SOME TSTMS MAY PRODUCE GUSTY
WINDS AND HEAVY RAINFALL IN THE AFTERNOON.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS, THEN AROUND 2 FT AFTER MIDNIGHT.
SHOWERS LIKELY WITH SCATTERED TSTMS IN THE EVENING. SOME TSTMS
MAY PRODUCE GUSTY WINDS AND HEAVY RAINFALL IN THE EVENING.
FRI
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES AROUND
2 FT.
FRI NIGHT
E WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
SAT THROUGH SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES AROUND 2 FT.
SUN NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES
AROUND 2 FT. 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.
ANZ236-140000-
NARRAGANSETT BAY-
703 AM EDT WED AUG 13 2025
TODAY
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS
UP TO 20 KT THIS AFTERNOON. WAVES AROUND 2 FT. AREAS OF FOG THIS
MORNING WITH VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
S 5 TO 10 KT AFTER MIDNIGHT. WAVES AROUND 2 FT. AREAS OF FOG
AFTER MIDNIGHT WITH VSBY 1 TO 3 NM.
THU
S WINDS 5 TO 10 KT. WAVES AROUND 2 FT. SHOWERS LIKELY.
AREAS OF FOG IN THE MORNING.
THU NIGHT
SW WINDS AROUND 5 KT, BECOMING N AFTER MIDNIGHT.
WAVES AROUND 2 FT. SHOWERS LIKELY IN THE EVENING.
FRI AND FRI NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES AROUND 2 FT.
SAT THROUGH SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES 2 TO 3 FT.
SUN NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES
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.
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