108
FZUS51 KBOX 171106
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
705 AM EDT FRI JUL 17 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-180000-
705 AM EDT FRI JUL 17 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
A WEAK LOW PRES SHOULD MOVE ALONG THE S COAST THIS EVENING. A HIGH
PRES SHOULD THEN APPROACH THE WATERS FRI INTO SAT. A LOW PRES MOVING
ACROSS NRN NEW ENGLAND SAT NIGHT INTO EARLY SUN SHOULD PUSH ITS COLD
FRONT ACROSS THE WATERS. A WARM FRONT SHOULD MOVE N ACROSS THE
WATERS TUE.
ANZ250-180000-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
705 AM EDT FRI JUL 17 2026
TODAY
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING SW
5 TO 10 KT THIS AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT
AT 4 SECONDS AND S 1 FOOT AT 6 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: N 1 FOOT AT 4 SECONDS AND S 1 FOOT AT
4 SECONDS. AREAS OF SMOKE AFTER MIDNIGHT.
SAT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, INCREASING TO
20 TO 25 KT WITH GUSTS UP TO 35 KT IN THE AFTERNOON. SEAS AROUND
2 FT, BUILDING TO 3 TO 4 FT IN THE AFTERNOON. WAVE DETAIL: S 2 FT
AT 3 SECONDS AND N 1 FOOT AT 3 SECONDS, BECOMING S 4 FT AT
4 SECONDS AND N 2 FT AT 3 SECONDS. AREAS OF SMOKE. A CHANCE OF
SHOWERS IN THE AFTERNOON.
SAT NIGHT
S WINDS 20 TO 25 KT, BECOMING SW 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT
AT 5 SECONDS AND SE 1 FOOT AT 14 SECONDS. SHOWERS WITH A CHANCE
OF TSTMS.
SUN AND SUN NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT AT 6 SECONDS AND W 2 FT AT
4 SECONDS.
MON THROUGH TUE
S 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 SE 2 FT AT
9 SECONDS.
TUE NIGHT
S WINDS AROUND 15 KT WITH GUSTS UP TO 25 KT. SEAS
AROUND 3 FT. 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.
ANZ251-180000-
MASSACHUSETTS BAY AND IPSWICH BAY-
705 AM EDT FRI JUL 17 2026
TODAY
NW WINDS 5 TO 10 KT, BECOMING SW THIS AFTERNOON. SEAS
AROUND 2 FT THIS MORNING, THEN 1 FOOT OR LESS. WAVE DETAIL: SW
2 FT AT 7 SECONDS AND N 1 FOOT AT 3 SECONDS, BECOMING N 1 FOOT AT
3 SECONDS AND W 1 FOOT AT 4 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS
1 FOOT OR LESS. WAVE DETAIL: S 1 FOOT AT 2 SECONDS AND N 1 FOOT
AT 3 SECONDS. AREAS OF SMOKE AFTER MIDNIGHT.
SAT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, INCREASING TO
20 TO 25 KT WITH GUSTS UP TO 30 KT IN THE AFTERNOON. SEAS 2 TO
3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND N 1 FOOT AT 3 SECONDS.
AREAS OF SMOKE. A CHANCE OF SHOWERS IN THE AFTERNOON.
SAT 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
8 SECONDS. SHOWERS WITH A CHANCE OF TSTMS IN THE EVENING, THEN A
CHANCE OF SHOWERS AFTER MIDNIGHT.
SUN AND SUN NIGHT
NW 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 7 SECONDS.
MON THROUGH TUE
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT AT 3 SECONDS AND N 1 FOOT AT
3 SECONDS.
TUE NIGHT
S WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. 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.
ANZ231-180000-
CAPE COD BAY-
705 AM EDT FRI JUL 17 2026
TODAY
NW WINDS 5 TO 10 KT, BECOMING SE THIS AFTERNOON. SEAS
AROUND 2 FT THIS MORNING, THEN 1 FOOT OR LESS. WAVE DETAIL: N
1 FOOT AT 4 SECONDS AND S 1 FOOT AT 6 SECONDS, BECOMING N 1 FOOT
AT 4 SECONDS AND S 1 FOOT AT 5 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS
1 FOOT OR LESS. WAVE DETAIL: S 1 FOOT AT 2 SECONDS AND N 1 FOOT
AT 4 SECONDS. AREAS OF SMOKE.
SAT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING S
15 TO 20 KT WITH GUSTS UP TO 30 KT IN THE AFTERNOON. SEAS 2 TO
4 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND N 1 FOOT AT
4 SECONDS. AREAS OF SMOKE. A CHANCE OF SHOWERS IN THE AFTERNOON.
SAT NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
2 TO 4 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 1 FOOT AT
10 SECONDS. SHOWERS WITH A CHANCE OF TSTMS.
SUN
W WINDS 10 TO 15 KT, BECOMING NW 5 TO 10 KT IN THE
AFTERNOON. GUSTS UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS. A CHANCE OF SHOWERS
IN THE MORNING.
SUN NIGHT
NW WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: N 1 FOOT AT 4 SECONDS AND S 1 FOOT AT 6 SECONDS.
MON THROUGH TUE
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 4 FT. 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.
ANZ254-180000-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
705 AM EDT FRI JUL 17 2026
TODAY
NW WINDS AROUND 10 KT, BECOMING SW THIS AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND S 2 FT AT
5 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
2 FT AT 6 SECONDS AND N 1 FOOT AT 5 SECONDS. AREAS OF SMOKE.
SAT
SW WINDS 10 TO 15 KT, BECOMING S 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT
AT 4 SECONDS AND N 1 FOOT AT 5 SECONDS. AREAS OF SMOKE.
SAT NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 6 FT. WAVE DETAIL: SE 6 FT AT 7 SECONDS AND W 2 FT AT
5 SECONDS. SHOWERS WITH A CHANCE OF TSTMS.
SUN
W WINDS 15 TO 20 KT, BECOMING NW 10 TO 15 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SW
6 FT AT 6 SECONDS AND SE 3 FT AT 8 SECONDS. SHOWERS LIKELY IN THE
MORNING.
SUN NIGHT
NW WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S
4 FT AT 8 SECONDS AND NW 1 FOOT AT 3 SECONDS.
MON THROUGH TUE
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT.
TUE NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 6 FT. SHOWERS LIKELY.
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.
ANZ255-180000-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
705 AM EDT FRI JUL 17 2026
TODAY
NW WINDS 5 TO 10 KT, BECOMING SW THIS AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 6 SECONDS AND N 1 FOOT AT
4 SECONDS.
TONIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 6 SECONDS AND N 1 FOOT AT 4 SECONDS. AREAS OF SMOKE.
SAT
SW WINDS 10 TO 15 KT, BECOMING S 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT
AT 5 SECONDS AND NE 1 FOOT AT 5 SECONDS. AREAS OF SMOKE. A CHANCE
OF SHOWERS IN THE AFTERNOON WITH VSBY 1 TO 3 NM.
SAT NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 5 FT, BUILDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: S
5 FT AT 5 SECONDS AND NW 1 FOOT AT 6 SECONDS, BECOMING SW 7 FT AT
7 SECONDS AND NW 1 FOOT AT 6 SECONDS. SHOWERS WITH A CHANCE OF
TSTMS.
SUN
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, DIMINISHING TO
10 TO 15 KT IN THE AFTERNOON. SEAS 5 TO 7 FT. WAVE DETAIL: W 7 FT
AT 6 SECONDS AND E 1 FOOT AT 10 SECONDS. SHOWERS LIKELY IN THE
MORNING.
SUN NIGHT
NW WINDS AROUND 10 KT. SEAS 4 TO 6 FT. WAVE DETAIL:
SW 6 FT AT 8 SECONDS AND N 2 FT AT 5 SECONDS.
MON AND MON NIGHT
W WINDS 5 TO 10 KT, BECOMING S. SEAS 3 TO
5 FT.
TUE
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT.
TUE NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 7 FT. SHOWERS LIKELY.
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.
ANZ256-180000-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
705 AM EDT FRI JUL 17 2026
TODAY
NW WINDS AROUND 5 KT, BECOMING SW THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 6 SECONDS AND N 1 FOOT AT
3 SECONDS.
TONIGHT
SW WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND
N 1 FOOT AT 4 SECONDS. AREAS OF SMOKE.
SAT
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS AROUND 2 FT, BUILDING TO 3 TO
4 FT IN THE AFTERNOON. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND NE
1 FOOT AT 5 SECONDS, BECOMING S 4 FT AT 5 SECONDS AND N 2 FT AT
5 SECONDS. AREAS OF SMOKE. SHOWERS LIKELY IN THE AFTERNOON WITH
VSBY 1 TO 3 NM.
SAT NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 7 FT. WAVE DETAIL: SW 7 FT AT 7 SECONDS AND NW 3 FT AT
4 SECONDS. SHOWERS WITH A CHANCE OF TSTMS.
SUN
W WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 5 TO 7 FT. WAVE DETAIL: W 7 FT
AT 7 SECONDS AND E 3 FT AT 9 SECONDS. A CHANCE OF SHOWERS IN THE
MORNING.
SUN NIGHT
NW WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT
AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: S 6 FT AT 8 SECONDS
AND NE 2 FT AT 7 SECONDS.
MON THROUGH TUE
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 3 TO 5 FT.
TUE NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 7 FT. 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.
ANZ232-180000-
NANTUCKET SOUND-
705 AM EDT FRI JUL 17 2026
TODAY
NW WINDS 5 TO 10 KT, BECOMING SW THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: NW 1 FOOT AT 2 SECONDS AND N 1 FOOT AT
5 SECONDS.
TONIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: N
1 FOOT AT 3 SECONDS AND SW 1 FOOT AT 3 SECONDS. AREAS OF SMOKE.
SAT
SW WINDS 10 TO 15 KT, BECOMING S 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
3 FT AT 4 SECONDS AND NE 1 FOOT AT 5 SECONDS. AREAS OF SMOKE. A
CHANCE OF SHOWERS IN THE AFTERNOON.
SAT NIGHT
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 SE 1 FOOT AT
9 SECONDS. SHOWERS WITH A CHANCE OF TSTMS.
SUN
W WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT, SUBSIDING TO 2 TO
3 FT IN THE AFTERNOON. WAVE DETAIL: S 4 FT AT 7 SECONDS AND W
3 FT AT 4 SECONDS, BECOMING W 2 FT AT 3 SECONDS AND S 2 FT AT
7 SECONDS. SHOWERS LIKELY IN THE MORNING.
SUN NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 6 SECONDS AND NW 1 FOOT AT 4 SECONDS.
MON THROUGH TUE
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT.
TUE NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 5 FT. 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.
ANZ233-180000-
VINEYARD SOUND-
705 AM EDT FRI JUL 17 2026
TODAY
NW WINDS 5 TO 10 KT, BECOMING SW THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND N 1 FOOT AT
5 SECONDS.
TONIGHT
SW WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 6 SECONDS AND
W 1 FOOT AT 3 SECONDS. AREAS OF SMOKE.
SAT
SW WINDS 10 TO 15 KT, BECOMING S 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS AROUND 2 FT, BUILDING TO 3 TO
4 FT IN THE AFTERNOON. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND NE
1 FOOT AT 8 SECONDS, BECOMING SW 4 FT AT 5 SECONDS AND NE 1 FOOT
AT 4 SECONDS. AREAS OF SMOKE. SHOWERS LIKELY IN THE AFTERNOON.
SAT NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 4 FT, BUILDING TO 4 TO 6 FT AFTER MIDNIGHT. WAVE DETAIL: W
4 FT AT 7 SECONDS AND SE 1 FOOT AT 10 SECONDS, BECOMING SW 6 FT
AT 7 SECONDS AND E 2 FT AT 7 SECONDS. SHOWERS WITH A CHANCE OF
TSTMS.
SUN
W WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND
SE 2 FT AT 7 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
SUN NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW
4 FT AT 8 SECONDS AND E 2 FT AT 8 SECONDS.
MON THROUGH TUE
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT.
TUE NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT. 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.
ANZ234-180000-
BUZZARDS BAY-
705 AM EDT FRI JUL 17 2026
TODAY
NW WINDS AROUND 5 KT, BECOMING SW 10 TO 15 KT THIS
AFTERNOON. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT THIS AFTERNOON.
WAVE DETAIL: N 1 FOOT AT 4 SECONDS AND SW 1 FOOT AT 5 SECONDS,
BECOMING N 1 FOOT AT 4 SECONDS AND W 1 FOOT AT 4 SECONDS.
TONIGHT
SW WINDS 10 TO 15 KT, DIMINISHING TO AROUND 5 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT IN THE EVENING, THEN 1 FOOT OR LESS.
WAVE DETAIL: SW 1 FOOT AT 4 SECONDS AND N 1 FOOT AT 5 SECONDS,
BECOMING NE 1 FOOT AT 3 SECONDS AND W 1 FOOT AT 4 SECONDS. AREAS
OF SMOKE.
SAT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING S
15 TO 20 KT WITH GUSTS UP TO 30 KT IN THE AFTERNOON. SEAS 2 TO
4 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND NE 1 FOOT AT
7 SECONDS. AREAS OF SMOKE. A CHANCE OF SHOWERS IN THE AFTERNOON.
SAT NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND SE 2 FT AT
11 SECONDS. SHOWERS WITH A CHANCE OF TSTMS.
SUN
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND SW 3 FT AT
4 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
SUN NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 8 SECONDS AND S 2 FT AT 9 SECONDS.
MON THROUGH TUE
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT.
TUE NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 4 FT. 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.
ANZ235-180000-
RHODE ISLAND SOUND-
705 AM EDT FRI JUL 17 2026
TODAY
NW WINDS AROUND 5 KT, BECOMING SW THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: N 2 FT AT 3 SECONDS AND S 2 FT AT
5 SECONDS.
TONIGHT
SW WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND
W 1 FOOT AT 3 SECONDS. AREAS OF SMOKE.
SAT
SW WINDS 10 TO 15 KT, BECOMING S 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS AROUND 2 FT, BUILDING TO 3 TO
4 FT IN THE AFTERNOON. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE
1 FOOT AT 8 SECONDS, BECOMING SW 4 FT AT 5 SECONDS AND NE 1 FOOT
AT 4 SECONDS. AREAS OF SMOKE. SHOWERS LIKELY IN THE AFTERNOON
WITH VSBY 1 NM OR LESS.
SAT NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 6 FT. WAVE DETAIL: SW 6 FT AT 7 SECONDS AND SE 1 FOOT AT
14 SECONDS. SHOWERS WITH A CHANCE OF TSTMS.
SUN
W WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 4 TO 6 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND
SE 1 FOOT AT 13 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
SUN NIGHT
NW WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S
5 FT AT 8 SECONDS AND E 3 FT AT 8 SECONDS.
MON THROUGH TUE
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT.
TUE NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. 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.
ANZ237-180000-
BLOCK ISLAND SOUND-
705 AM EDT FRI JUL 17 2026
TODAY
NW WINDS AROUND 5 KT, BECOMING SW THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 5 SECONDS AND N 1 FOOT AT
3 SECONDS.
TONIGHT
SW WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND
W 1 FOOT AT 3 SECONDS. AREAS OF SMOKE.
SAT
SW WINDS 10 TO 15 KT, BECOMING S 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS AROUND 2 FT, BUILDING TO 3 TO
4 FT IN THE AFTERNOON. WAVE DETAIL: S 2 FT AT 5 SECONDS AND W
1 FOOT AT 2 SECONDS, BECOMING SW 3 FT AT 4 SECONDS AND NE 1 FOOT
AT 5 SECONDS. AREAS OF SMOKE. SHOWERS LIKELY WITH A CHANCE OF
TSTMS IN THE AFTERNOON.
SAT NIGHT
S WINDS 20 TO 25 KT, BECOMING SW 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT
AT 7 SECONDS AND W 2 FT AT 4 SECONDS. SHOWERS WITH A CHANCE OF
TSTMS.
SUN
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS 3 TO 5 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND W 2 FT AT
4 SECONDS.
SUN NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S
4 FT AT 8 SECONDS AND SE 2 FT AT 8 SECONDS.
MON AND MON NIGHT
W WINDS 5 TO 10 KT, BECOMING S. SEAS 2 TO
4 FT.
TUE
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. A CHANCE OF SHOWERS.
TUE NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. 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.
ANZ230-180000-
BOSTON HARBOR-
705 AM EDT FRI JUL 17 2026
TODAY
W WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
TONIGHT
SE WINDS AROUND 5 KT, BECOMING SW AROUND 5 KT AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS. AREAS OF SMOKE.
SAT
SW WINDS 5 TO 10 KT, BECOMING S 15 TO 20 KT WITH GUSTS UP
TO 30 KT IN THE AFTERNOON. WAVES AROUND 2 FT. AREAS OF SMOKE. A
CHANCE OF SHOWERS IN THE AFTERNOON.
SAT NIGHT
SW WINDS 15 TO 20 KT. GUSTS UP TO 30 KT IN THE
EVENING. WAVES AROUND 2 FT. SHOWERS. A CHANCE OF TSTMS IN THE
EVENING.
SUN AND SUN NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES AROUND 2 FT.
MON AND MON NIGHT
W WINDS 5 TO 10 KT, BECOMING S. WAVES AROUND
2 FT.
TUE
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES AROUND
2 FT. A CHANCE OF SHOWERS.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES
AROUND 2 FT. 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.
ANZ236-180000-
NARRAGANSETT BAY-
705 AM EDT FRI JUL 17 2026
TODAY
NW WINDS AROUND 5 KT, BECOMING SW THIS AFTERNOON. WAVES
1 FOOT OR LESS, THEN AROUND 2 FT THIS AFTERNOON.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES AROUND 2 FT. AREAS OF
SMOKE.
SAT
SW WINDS 10 TO 15 KT, BECOMING S 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. WAVES 2 TO 3 FT. AREAS OF SMOKE. A
CHANCE OF SHOWERS IN THE AFTERNOON.
SAT NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES
2 TO 4 FT. SHOWERS WITH A CHANCE OF TSTMS.
SUN
W WINDS 10 TO 15 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS
IN THE MORNING.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 2 TO 3 FT.
MON AND MON NIGHT
W WINDS 5 TO 10 KT, BECOMING S. WAVES AROUND
2 FT.
TUE
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES 2 TO
3 FT. A CHANCE OF SHOWERS.
TUE NIGHT
S WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. WAVES
2 TO 4 FT. 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.
ANZ280-180000-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
705 AM EDT FRI JUL 17 2026
TODAY
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, DIMINISHING
TO 5 TO 10 KT THIS AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: NW
3 FT AT 4 SECONDS AND S 2 FT AT 6 SECONDS.
TONIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NW
2 FT AT 4 SECONDS AND S 2 FT AT 7 SECONDS. AREAS OF SMOKE AFTER
MIDNIGHT.
SAT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, INCREASING TO
20 TO 25 KT WITH GUSTS UP TO 30 KT IN THE AFTERNOON. SEAS 2 TO
3 FT, BUILDING TO 3 TO 5 FT IN THE AFTERNOON. WAVE DETAIL: S 2 FT
AT 6 SECONDS AND NW 1 FOOT AT 3 SECONDS, BECOMING S 5 FT AT
5 SECONDS AND NW 1 FOOT AT 3 SECONDS. AREAS OF SMOKE. A CHANCE OF
SHOWERS IN THE AFTERNOON.
SAT NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS
5 TO 7 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND SE 6 FT AT
9 SECONDS. SHOWERS WITH A CHANCE OF TSTMS.
SUN
W WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT, DIMINISHING TO
10 TO 15 KT WITH GUSTS UP TO 20 KT IN THE AFTERNOON. SEAS 5 TO
7 FT, SUBSIDING TO 3 TO 5 FT IN THE AFTERNOON. WAVE DETAIL: S
6 FT AT 7 SECONDS AND SE 1 FOOT AT 13 SECONDS, BECOMING S 4 FT AT
7 SECONDS AND W 2 FT AT 5 SECONDS.
SUN NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 4 FT. WAVE DETAIL: S 3 FT AT 8 SECONDS AND W 2 FT AT
4 SECONDS.
MON THROUGH TUE
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT.
TUE NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 5 FT. SHOWERS LIKELY.
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.
ANZ281-180000-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
705 AM EDT FRI JUL 17 2026
TODAY
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT THIS MORNING. SEAS
AROUND 3 FT. WAVE DETAIL: S 3 FT AT 6 SECONDS AND N 2 FT AT
4 SECONDS.
TONIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 6 SECONDS AND N 2 FT AT 5 SECONDS. AREAS OF SMOKE AFTER
MIDNIGHT.
SAT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING S
15 TO 20 KT WITH GUSTS UP TO 30 KT IN THE AFTERNOON. SEAS 2 TO
4 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND N 1 FOOT AT 5 SECONDS.
AREAS OF SMOKE.
SAT NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS
5 TO 7 FT. WAVE DETAIL: S 7 FT AT 7 SECONDS AND W 2 FT AT
5 SECONDS. SHOWERS WITH A CHANCE OF TSTMS.
SUN
W WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT, DIMINISHING TO
10 TO 15 KT WITH GUSTS UP TO 20 KT IN THE AFTERNOON. SEAS 5 TO
7 FT. WAVE DETAIL: W 7 FT AT 7 SECONDS AND SE 3 FT AT 7 SECONDS.
A CHANCE OF SHOWERS IN THE MORNING.
SUN NIGHT
W WINDS 5 TO 10 KT. SEAS 4 TO 6 FT. WAVE DETAIL: S
6 FT AT 8 SECONDS AND S 4 FT AT 10 SECONDS.
MON
NW WINDS 5 TO 10 KT. SEAS 4 TO 6 FT.
MON NIGHT AND TUE
S WINDS 5 TO 10 KT, BECOMING SE 10 TO 15 KT
WITH GUSTS UP TO 25 KT. SEAS 3 TO 4 FT.
TUE NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
6 TO 9 FT. SHOWERS LIKELY.
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.
ANZ282-180000-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
705 AM EDT FRI JUL 17 2026
TODAY
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
3 FT AT 6 SECONDS AND N 1 FOOT AT 4 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
3 FT AT 6 SECONDS AND N 1 FOOT AT 4 SECONDS. AREAS OF SMOKE.
SAT
S 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: S 3 FT
AT 5 SECONDS AND N 1 FOOT AT 5 SECONDS. AREAS OF SMOKE.
SAT NIGHT
S WINDS 15 TO 20 KT, BECOMING SW 20 TO 25 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 4 FT, BUILDING TO 5 TO
7 FT AFTER MIDNIGHT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND N
1 FOOT AT 4 SECONDS, BECOMING SW 7 FT AT 6 SECONDS AND NW 1 FOOT
AT 5 SECONDS. SHOWERS WITH A CHANCE OF TSTMS.
SUN
W WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT, DIMINISHING TO
10 TO 15 KT WITH GUSTS UP TO 20 KT IN THE AFTERNOON. SEAS 6 TO
7 FT. WAVE DETAIL: W 7 FT AT 7 SECONDS AND E 1 FOOT AT 8 SECONDS.
A CHANCE OF SHOWERS IN THE MORNING.
SUN NIGHT
NW WINDS 5 TO 10 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SW
7 FT AT 8 SECONDS AND N 2 FT AT 4 SECONDS.
MON
N WINDS 5 TO 10 KT. SEAS 4 TO 6 FT.
MON NIGHT AND TUE
S WINDS 5 TO 10 KT, BECOMING SE 10 TO 15 KT
WITH GUSTS UP TO 20 KT. SEAS 3 TO 4 FT.
TUE NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
6 TO 9 FT. SHOWERS LIKELY.
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.
ANZ283-180000-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
705 AM EDT FRI JUL 17 2026
TODAY
N WINDS AROUND 5 KT, BECOMING W THIS AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 6 SECONDS AND N 2 FT AT
4 SECONDS.
TONIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: N
2 FT AT 3 SECONDS AND SW 2 FT AT 6 SECONDS. AREAS OF SMOKE.
SAT
S 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
3 FT AT 5 SECONDS AND SE 1 FOOT AT 8 SECONDS. AREAS OF SMOKE. A
CHANCE OF SHOWERS IN THE AFTERNOON WITH VSBY 1 TO 3 NM.
SAT NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 5 FT, BUILDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: S
5 FT AT 5 SECONDS AND N 1 FOOT AT 4 SECONDS, BECOMING SW 7 FT AT
7 SECONDS AND NW 4 FT AT 4 SECONDS. SHOWERS WITH A CHANCE OF
TSTMS.
SUN
W WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 6 TO 7 FT. WAVE DETAIL: SW
7 FT AT 7 SECONDS AND E 1 FOOT AT 9 SECONDS. SHOWERS LIKELY IN
THE MORNING.
SUN NIGHT
NW WINDS 10 TO 15 KT. SEAS 5 TO 6 FT. WAVE DETAIL:
SW 6 FT AT 8 SECONDS AND N 2 FT AT 5 SECONDS.
MON THROUGH TUE
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 5 FT.
TUE NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
6 TO 9 FT. SHOWERS LIKELY.
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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