Coastal Waters Forecast
Issued by NWS Boston, MA

Home |  Current Version |  Previous Version |  Graphics & Text |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
033
FZUS51 KBOX 131704
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
104 PM EDT Thu Jun 13 2024

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

ANZ200-140600-
104 PM EDT Thu Jun 13 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pressure will remain over the waters through Thu. Winds become
gusty out of the SW Thursday, before a cold front over the Great
Lakes is expected to cross the region Fri. Showers and Thunderstorms
will accompany the cold front. A tropical low may track well
southeast of New England Saturday, across Georges Bank and then
south of Nova Scotia.  High pressure then builds across the waters
Sunday and Monday.

$$

ANZ250-140600-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
104 PM EDT Thu Jun 13 2024

.THIS AFTERNOON...S 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
8 seconds.
.TONIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and SE 3 ft at
8 seconds.
.FRI...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 3 ft at 8 seconds.
Scattered showers in the afternoon.
.FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming W after midnight. Seas 2 to 4 ft. Wave Detail: SE 3 ft
at 7 seconds and SW 2 ft at 4 seconds. Showers likely, mainly in
the evening. Vsby 1 to 3 NM.
.SAT...N winds around 10 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: NW 2 ft at 3 seconds and SE 2 ft at 8 seconds.
A chance of showers in the morning.
.SAT NIGHT...NW 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: N
3 ft at 5 seconds and SE 1 foot at 14 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 3 ft.

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.

$$

ANZ251-140600-
Massachusetts Bay and Ipswich Bay-
104 PM EDT Thu Jun 13 2024

.THIS AFTERNOON...S winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot
at 2 seconds.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: S 2 ft at 3 seconds and SE 2 ft at 6 seconds.
.FRI...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 7 seconds and S 2 ft at 3 seconds.
Scattered showers in the afternoon.
.FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 7 seconds and SW 1 foot at 3 seconds. Showers likely,
mainly in the evening. Vsby 1 to 3 NM.
.SAT...N winds around 10 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: N 2 ft at 3 seconds and E 2 ft at 8 seconds. A
chance of showers.
.SAT NIGHT...NW 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:
N 2 ft at 5 seconds and E 1 foot at 15 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft.

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.

$$

ANZ231-140600-
Cape Cod Bay-
104 PM EDT Thu Jun 13 2024

.THIS AFTERNOON...S winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and SE
1 foot at 8 seconds.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at
7 seconds.
.FRI...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 2 ft at 7 seconds.
.FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave
Detail: SW 1 foot at 3 seconds and SE 1 foot at 7 seconds. A
chance of showers.
.SAT...N winds 5 to 10 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: NW 1 foot at 3 seconds and E 1 foot at
7 seconds. A chance of showers.
.SAT NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt after
midnight. Seas around 2 ft. Wave Detail: N 1 foot at 5 seconds
and SE 1 foot at 15 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft.

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.

$$

ANZ254-140600-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
104 PM EDT Thu Jun 13 2024

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

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.

$$

ANZ255-140600-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
104 PM EDT Thu Jun 13 2024

.THIS AFTERNOON...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 2 ft at
8 seconds.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 8 seconds and SW 2 ft at 4 seconds.
.FRI...S winds 10 to 15 kt. Seas around 3 ft. Wave Detail: SE
3 ft at 8 seconds and SW 2 ft at 5 seconds. Patchy fog in the
afternoon with vsby 1 to 3 NM.
.FRI NIGHT...S winds around 10 kt, becoming W after midnight.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and SW 2 ft at
4 seconds. A chance of showers. Patchy fog in the evening with
vsby 1 NM or less.
.SAT...N winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 4 ft. Wave Detail: NE 3 ft at 7 seconds and NW 2 ft at
4 seconds. A chance of showers in the morning.
.SAT NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 9 seconds and NW 2 ft at 3 seconds.
.SUN AND SUN NIGHT...NE winds 10 to 15 kt, becoming S 5 to 10 kt.
Seas 2 to 4 ft.
.MON AND MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft.

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.

$$

ANZ256-140600-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
104 PM EDT Thu Jun 13 2024

.THIS AFTERNOON...SW winds around 10 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at
8 seconds.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: SE 3 ft at 8 seconds and SW 2 ft at 4 seconds.
.FRI...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 8 seconds and SW 2 ft at 5 seconds.
.FRI NIGHT...S winds around 10 kt, becoming W after midnight.
Seas 2 to 4 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at
8 seconds. A chance of showers. Vsby 1 to 3 NM in the evening.
.SAT...N winds around 10 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft
at 8 seconds and NW 2 ft at 5 seconds. A chance of showers in the
morning.
.SAT NIGHT...N winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 9 seconds and NW 1 foot at 4 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 4 ft.

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.

$$

ANZ232-140600-
Nantucket Sound-
104 PM EDT Thu Jun 13 2024

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 1 foot
at 8 seconds.
.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.
.FRI...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 S 1 foot at
8 seconds.
.FRI NIGHT...SW winds around 10 kt, becoming W after midnight.
Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 1 foot
at 7 seconds. A chance of showers. Vsby 1 to 3 NM in the evening.
.SAT...N winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: NW 2 ft at 4 seconds and NE 2 ft at 7 seconds.
A chance of showers in the morning.
.SAT NIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
NE 2 ft at 6 seconds and NW 1 foot at 4 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft.

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.

$$

ANZ233-140600-
Vineyard Sound-
104 PM EDT Thu Jun 13 2024

.THIS AFTERNOON...SW winds around 10 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and SW 1 foot
at 3 seconds.
.TONIGHT...SW winds around 10 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and
S 2 ft at 8 seconds.
.FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: SW 2 ft at 4 seconds and S 2 ft at 7 seconds.
.FRI NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and S 1 foot at
7 seconds. A chance of showers.
.SAT...N winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft. Wave Detail: NW 1 foot at 4 seconds and SE
1 foot at 8 seconds. A chance of showers in the morning.
.SAT NIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 8 seconds and W 1 foot at 5 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft.

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.

$$

ANZ234-140600-
Buzzards Bay-
104 PM EDT Thu Jun 13 2024

.THIS AFTERNOON...SW winds around 10 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and S
1 foot at 7 seconds.
.TONIGHT...SW winds around 10 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: SW 1 foot at 4 seconds
and S 1 foot at 8 seconds.
.FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: SW 2 ft at 4 seconds and S 1 foot at
7 seconds.
.FRI NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
2 to 3 ft. Wave Detail: S 2 ft at 6 seconds. A chance of showers.
.SAT...N winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft. Wave Detail: NW 1 foot at 4 seconds and SE
1 foot at 8 seconds. A chance of showers in the morning.
.SAT NIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W
1 foot at 5 seconds and NE 1 foot at 6 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft.

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.

$$

ANZ235-140600-
Rhode Island Sound-
104 PM EDT Thu Jun 13 2024

.THIS AFTERNOON...SW winds around 10 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and S 2 ft at
8 seconds.
.TONIGHT...SW winds around 10 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SW
2 ft at 4 seconds.
.FRI...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds.
.FRI NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at
7 seconds. A chance of showers.
.SAT...N winds around 10 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft
at 8 seconds and NW 2 ft at 5 seconds. A chance of showers in the
morning.
.SAT NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE
3 ft at 7 seconds and W 1 foot at 4 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 3 ft.

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.

$$

ANZ237-140600-
Block Island Sound-
104 PM EDT Thu Jun 13 2024

.THIS AFTERNOON...SW winds around 10 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and S 2 ft at
8 seconds.
.TONIGHT...SW winds around 10 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SW 2 ft at
3 seconds.
.FRI...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 2 ft at
4 seconds.
.FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at
7 seconds. Showers likely, mainly in the evening with vsby 1 to
3 NM.
.SAT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 8 seconds and NW 1 foot at 5 seconds. A chance of showers in
the afternoon.
.SAT NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 8 seconds and NW 1 foot at 3 seconds.
.SUN THROUGH MON NIGHT...SW winds 5 to 10 kt with gusts up to
20 kt. Seas 2 to 3 ft.

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.

$$

ANZ230-140600-
Boston Harbor-
104 PM EDT Thu Jun 13 2024

.THIS AFTERNOON...S winds 5 to 10 kt. Waves 1 foot or less.
.TONIGHT...SW winds around 10 kt. Waves around 2 ft.
.FRI...SW winds around 10 kt with gusts up to 20 kt. Waves around
2 ft. Scattered showers in the afternoon.
.FRI NIGHT...W winds 5 to 10 kt. Waves around 2 ft in the
evening, then 1 foot or less. Showers. Vsby 1 to 3 NM.
.SAT...N winds around 10 kt. Waves around 2 ft. A chance of
showers.
.SAT NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less, then
around 2 ft after midnight.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Waves around 2 ft.

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.

$$

ANZ236-140600-
Narragansett Bay-
104 PM EDT Thu Jun 13 2024

.THIS AFTERNOON...S winds around 10 kt with gusts up to 20 kt.
Waves around 2 ft.
.TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening.
Waves around 2 ft.
.FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
3 ft.
.FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Waves 2 to 3 ft. Showers likely, mainly in the evening with vsby
1 to 3 NM.
.SAT...N winds 5 to 10 kt. Waves around 2 ft. A chance of
showers.
.SAT NIGHT...N winds 5 to 10 kt. Waves around 2 ft in the
evening, then 1 foot or less.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Waves around 2 ft.

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/NWSBoston

You can follow us on Twitter at
@NWSBoston