Coastal Waters Forecast
Issued by NWS Boston, MA

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FZUS51 KBOX 170807
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
407 AM EDT Thu Jul 17 2025

Coastal waters from the Merrimack River MA to Watch Hill RI out
to 25 NM

ANZ200-172115-
407 AM EDT Thu Jul 17 2025

.Synopsis for Massachusetts and Rhode Island coastal waters...

A cold front approaches the waters today and crosses the region
this evening. High pres then builds in from the west Fri before
moving east of the waters Sat. The next cold front will cross the
region sometime Sun or Sun night followed by high pres to start the
next work week.

$$

ANZ250-172115-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
407 AM EDT Thu Jul 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY AFTERNOON...

.TODAY...S winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 4 seconds and SE 2 ft at 8 seconds. A slight chance of showers
with isolated tstms. Areas of fog this morning. Vsby 1 NM or
less.
.TONIGHT...SW winds 15 to 20 kt, becoming W after midnight. 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. Areas of fog. Vsby 1 NM or less, increasing
to 1 to 3 NM after midnight.
.FRI...NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: NW
3 ft at 4 seconds and SE 2 ft at 8 seconds.
.FRI NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NW
2 ft at 4 seconds and E 2 ft at 7 seconds.
.SAT...W winds around 5 kt, becoming S 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 SE 2 ft at 8 seconds.
.SAT NIGHT...SW winds around 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
8 seconds. A chance of showers after midnight with vsby 1 to
3 NM.
.SUN AND SUN NIGHT...SW winds 10 to 15 kt, becoming NW. Gusts up
to 25 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM.
.MON AND MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt,
becoming NW. Seas 2 to 3 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.

$$

ANZ251-172115-
Massachusetts Bay and Ipswich Bay-
407 AM EDT Thu Jul 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY AFTERNOON...

.TODAY...S winds 5 to 10 kt, increasing to 10 to 15 kt this
afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 3 seconds and SE 1 foot at 7 seconds. A slight chance of
tstms. A slight chance of showers this morning, then a chance of
showers this afternoon. Areas of fog this morning with vsby 1 NM
or less.
.TONIGHT...SW winds 10 to 15 kt, becoming W after midnight. Gusts
up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and
SE 2 ft at 8 seconds.
.FRI...NW winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: NW
2 ft at 3 seconds and E 1 foot at 9 seconds.
.FRI NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
NW 1 foot at 3 seconds and NE 1 foot at 7 seconds.
.SAT...W winds around 5 kt, becoming S 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft
at 3 seconds and E 1 foot at 7 seconds.
.SAT NIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at
8 seconds. Showers likely after midnight with vsby 1 to 3 NM.
.SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Showers likely with a chance of tstms. Vsby 1 to 3 NM.
.SUN NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. A chance of showers and tstms.
.MON AND MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt,
becoming W 5 to 10 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.

$$

ANZ231-172115-
Cape Cod Bay-
407 AM EDT Thu Jul 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH
THIS EVENING...

.TODAY...S winds 10 to 15 kt with gusts up to 25 kt. Seas around
2 ft, building to 3 to 4 ft this afternoon. Wave Detail: S 1 foot
at 2 seconds and SE 1 foot at 7 seconds, becoming SW 2 ft at
3 seconds and SE 1 foot at 8 seconds. A slight chance of showers
with isolated tstms. 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 SE 1 foot at
8 seconds. Areas of fog. Vsby 1 to 3 NM.
.FRI...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: NW 2 ft at 4 seconds and SE 1 foot at
9 seconds.
.FRI NIGHT...NW winds around 5 kt. Seas around 2 ft in the
evening, then 1 foot or less. Wave Detail: NW 1 foot at 4 seconds
and NE 1 foot at 7 seconds.
.SAT...W winds around 5 kt, becoming S 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft
in the afternoon. Wave Detail: NW 1 foot at 4 seconds and NE
1 foot at 7 seconds, becoming SW 1 foot at 3 seconds and NE
1 foot at 6 seconds.
.SAT 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 E 1 foot at
6 seconds. A chance of showers after midnight.
.SUN AND SUN NIGHT...SW winds 10 to 15 kt, becoming NW. Gusts up
to 20 kt. Seas 2 to 3 ft. A chance of showers and tstms.
.MON AND MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt. Seas 2 to 3 ft, then 1 foot or less.

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.

$$

ANZ254-172115-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
407 AM EDT Thu Jul 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH FRIDAY AFTERNOON...

.TODAY...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: SE 3 ft at 7 seconds. Areas of fog. A slight
chance of showers with isolated tstms this morning. Vsby 1 NM or
less.
.TONIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after
midnight. Gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft
at 6 seconds and E 1 foot at 10 seconds. Areas of fog. Vsby 1 NM
or less, increasing to 1 to 3 NM after midnight.
.FRI...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: NW 4 ft at 6 seconds and E 2 ft at 9 seconds.
.FRI NIGHT...NW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: SW
3 ft at 6 seconds and E 2 ft at 10 seconds.
.SAT...W winds around 5 kt, becoming S in the afternoon. Seas
2 to 3 ft. Wave Detail: SW 2 ft at 6 seconds and NE 2 ft at
7 seconds.
.SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and E 1 foot at
8 seconds. A chance of showers after midnight.
.SUN...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft. Showers likely. Vsby 1 to 3 NM.
.SUN NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. A chance of showers.
.MON AND MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt. Seas 2 to 3 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.

$$

ANZ255-172115-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
407 AM EDT Thu Jul 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH FRIDAY AFTERNOON...

.TODAY...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: S 4 ft at 6 seconds and E 1 foot at 7 seconds.
A slight chance of showers with isolated tstms. Areas of fog this
morning. Vsby 1 NM or less, increasing to 1 to 3 NM this
afternoon.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
5 ft. Wave Detail: S 5 ft at 6 seconds and E 1 foot at
10 seconds. Areas of fog. Vsby 1 to 3 NM.
.FRI...NW winds 10 to 15 kt, becoming N 5 to 10 kt in the
afternoon. Gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: SW
5 ft at 7 seconds and E 1 foot at 10 seconds.
.FRI NIGHT...SE winds 5 to 10 kt, becoming SW after midnight.
Seas 2 to 4 ft. Wave Detail: SW 3 ft at 7 seconds and E 1 foot at
9 seconds.
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 7 seconds and E 1 foot at 9 seconds.
.SAT NIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and SE
1 foot at 9 seconds. A chance of showers after midnight.
.SUN AND SUN NIGHT...SW winds 15 to 20 kt, becoming NW 10 to
15 kt. Gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers.
Vsby 1 to 3 NM.
.MON AND MON NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt.
Seas 2 to 3 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.

$$

ANZ256-172115-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
407 AM EDT Thu Jul 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH FRIDAY AFTERNOON...

.TODAY...SW winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SE
4 ft at 7 seconds. Areas of fog this morning. A chance of showers
with a slight chance of tstms this morning with vsby 1 NM or
less.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
5 ft. Wave Detail: S 5 ft at 6 seconds. Areas of fog. Vsby 1 to
3 NM in the evening.
.FRI...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W
5 to 10 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: SW 5 ft
at 7 seconds and E 1 foot at 10 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SW
3 ft at 7 seconds and E 1 foot at 10 seconds.
.SAT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 7 seconds and E 1 foot at 10 seconds.
.SAT NIGHT...S winds 10 to 15 kt, becoming SW 15 to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and SE
1 foot at 9 seconds. A chance of showers after midnight with vsby
1 to 3 NM.
.SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas around
3 ft. A chance of showers and tstms. Vsby 1 to 3 NM.
.SUN NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. A chance of showers.
.MON AND MON NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt.
Seas 2 to 3 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.

$$

ANZ232-172115-
Nantucket Sound-
407 AM EDT Thu Jul 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH
THIS EVENING...

.TODAY...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 1 foot at
6 seconds. A slight chance of showers with isolated tstms. Areas
of fog this morning with vsby 1 NM or less.
.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 4 seconds and SE 1 foot at 8 seconds. Areas of fog. Vsby 1 NM
or less, increasing to 1 to 3 NM after midnight.
.FRI...NW winds 10 to 15 kt, becoming N 5 to 10 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft
at 4 seconds and SE 1 foot at 10 seconds.
.FRI NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W
1 foot at 5 seconds and NE 1 foot at 7 seconds.
.SAT...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds
and E 1 foot at 9 seconds.
.SAT NIGHT...S winds 10 to 15 kt, becoming SW 15 to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and
SE 1 foot at 9 seconds. A chance of showers after midnight.
.SUN...SW winds 15 to 20 kt. Seas 2 to 3 ft. A chance of showers
and tstms. Vsby 1 to 3 NM.
.SUN NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. A chance of showers.
.MON AND MON NIGHT...N winds 10 to 15 kt. 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.

$$

ANZ233-172115-
Vineyard Sound-
407 AM EDT Thu Jul 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH
THIS EVENING...

.TODAY...SW winds around 10 kt, increasing to around 15 kt this
afternoon. 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. A slight chance of
tstms. A chance of showers this morning, then a slight chance of
showers this afternoon. 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
4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 1 foot at
9 seconds. Areas of fog. Vsby 1 to 3 NM in the evening.
.FRI...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning.
Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds and E 1 foot at
10 seconds.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW
2 ft at 6 seconds and NE 1 foot at 6 seconds.
.SAT...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 7 seconds
and E 1 foot at 9 seconds.
.SAT NIGHT...S winds 10 to 15 kt, becoming SW 15 to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and
SE 1 foot at 9 seconds. A chance of showers after midnight.
.SUN AND SUN NIGHT...SW winds 15 to 20 kt, becoming NW 10 to
15 kt. Seas 2 to 3 ft. A chance of showers and tstms.
.MON AND MON NIGHT...NE winds 10 to 15 kt. Seas around 2 ft, then
1 foot or less.

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.

$$

ANZ234-172115-
Buzzards Bay-
407 AM EDT Thu Jul 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH
THIS EVENING...

.TODAY...SW winds around 10 kt, increasing to around 15 kt this
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW
2 ft at 4 seconds and SE 1 foot at 7 seconds. A slight chance of
tstms. A chance of showers this morning, then a slight chance of
showers this afternoon. 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
4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 1 foot at
9 seconds. Areas of fog in the evening with vsby 1 to 3 NM.
.FRI...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning.
Seas around 2 ft. Wave Detail: W 2 ft at 6 seconds and SE 1 foot
at 9 seconds.
.FRI NIGHT...SW winds around 5 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 7 seconds and E 1 foot at 7 seconds.
.SAT...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft
at 5 seconds and E 1 foot at 9 seconds.
.SAT NIGHT...SW 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
8 seconds. A chance of showers after midnight.
.SUN AND SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming NW. Seas 2 to 3 ft. A chance of showers and tstms.
.MON AND MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt,
becoming NE 5 to 10 kt. Seas around 2 ft, then 1 foot or less.

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.

$$

ANZ235-172115-
Rhode Island Sound-
407 AM EDT Thu Jul 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH
THIS EVENING...

.TODAY...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: SE 4 ft at 7 seconds. A slight chance of
tstms. A chance of showers this morning, then a slight chance of
showers this afternoon. Areas of fog this morning with vsby 1 NM
or less.
.TONIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after
midnight. Seas 3 to 4 ft. Wave Detail: S 4 ft at 6 seconds and SE
1 foot at 9 seconds. Areas of fog in the evening with vsby 1 to
3 NM.
.FRI...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W
5 to 10 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SW 4 ft
at 7 seconds and SE 1 foot at 9 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 7 seconds and E 1 foot at 9 seconds.
.SAT...S winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and E
1 foot at 9 seconds.
.SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and SE 1 foot at
9 seconds. A chance of showers after midnight with vsby 1 to
3 NM.
.SUN AND SUN NIGHT...SW winds 15 to 20 kt, becoming NW 10 to
15 kt. Seas 2 to 3 ft. A chance of showers and tstms.
.MON AND MON NIGHT...NE winds 10 to 15 kt. 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.

$$

ANZ237-172115-
Block Island Sound-
407 AM EDT Thu Jul 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH
THIS EVENING...

.TODAY...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: S 3 ft at 7 seconds. A slight chance of tstms.
A chance of showers this morning, then a slight chance of showers
this afternoon. Areas of fog this morning with vsby 1 NM or less.
.TONIGHT...SW winds 10 to 15 kt, becoming W after midnight. Gusts
up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds.
.FRI...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W
5 to 10 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: W 4 ft
at 6 seconds and SE 1 foot at 9 seconds.
.FRI NIGHT...SW winds 5 to 10 kt, becoming SE after midnight.
Seas 2 to 3 ft. Wave Detail: SW 3 ft at 7 seconds and SE 1 foot
at 9 seconds.
.SAT...SE winds 5 to 10 kt, becoming S in the afternoon. Seas
2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and SE 1 foot at
9 seconds.
.SAT NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds and
SE 1 foot at 9 seconds. Showers likely after midnight with vsby
1 to 3 NM.
.SUN AND SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming NW. Seas 2 to 3 ft. A chance of showers and tstms. Vsby
1 to 3 NM.
.MON AND MON NIGHT...NE winds 10 to 15 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.

$$

ANZ230-172115-
Boston Harbor-
407 AM EDT Thu Jul 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY AFTERNOON...

.TODAY...S winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts
up to 20 kt this afternoon. Waves around 2 ft. A chance of
showers with a slight chance of tstms. Areas of fog this morning
with vsby 1 NM or less.
.TONIGHT...SW winds around 10 kt, becoming W after midnight.
Gusts up to 25 kt. Waves around 2 ft.
.FRI...NW winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Gusts up to 25 kt. Waves around 2 ft.
.FRI NIGHT...NW winds around 5 kt. Waves 1 foot or less.
.SAT...W winds around 5 kt, becoming S 10 to 15 kt with gusts up
to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft
in the afternoon.
.SAT NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Waves around 2 ft. Showers likely after midnight with
vsby 1 to 3 NM.
.SUN...W winds 10 to 15 kt. Waves around 2 ft. Showers likely
with a chance of tstms. Vsby 1 to 3 NM.
.SUN NIGHT...NW winds 10 to 15 kt. Waves around 2 ft. A chance of
showers and tstms.
.MON AND MON NIGHT...N winds 10 to 15 kt, becoming NW 5 to 10 kt.
Waves around 2 ft, then 1 foot or less.

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.

$$

ANZ236-172115-
Narragansett Bay-
407 AM EDT Thu Jul 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH
THIS EVENING...

.TODAY...S winds 5 to 10 kt, becoming SW 10 to 15 kt this
afternoon. Gusts up to 25 kt. Waves 2 to 3 ft. A slight chance of
tstms. A chance of showers this morning, then a slight chance of
showers this afternoon. Areas of fog this morning with vsby 1 NM
or less.
.TONIGHT...SW winds 10 to 15 kt, becoming W after midnight. Gusts
up to 20 kt. Waves 2 to 3 ft.
.FRI...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning.
Waves around 2 ft.
.FRI NIGHT...W winds around 5 kt. Waves around 2 ft.
.SAT...SE winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. Waves around 2 ft.
.SAT NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Waves around 2 ft. A chance of showers after midnight
with vsby 1 to 3 NM.
.SUN AND SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming NW. Waves around 2 ft. A chance of showers and tstms.
.MON AND MON NIGHT...NE winds 5 to 10 kt. Waves around 2 ft, then
1 foot or less.

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.

$$

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