Coastal Waters Forecast
Issued by NWS Boston, MA

Current Version | Previous Version | Text Only | 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
000
FZUS51 KBOX 270748
CWFBOX

Coastal Waters Forecast
National Weather Service Taunton MA
348 AM EDT Thu Jul 27 2017

COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT TO
25 NM

ANZ200-272030-
348 AM EDT Thu Jul 27 2017

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres will slide east of the waters today. A weak front will
stall across the waters Fri. Then all eyes turn to a possible gale
center that is expected to track south of New Eng this weekend
which may bring a period of gale force NE winds. Low pres will
linger south of New Eng into early next week with NE flow
persisting.

For information on possible hazardous weather beyond the 24-36
hour forecast period, please visit www.weather.gov/boston and
follow the Current Hazards link above the map on the left.

$$

ANZ250-272030-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
348 AM EDT Thu Jul 27 2017

.TODAY...SW winds 5 to 10 kt, becoming S 10 to 15 kt this
afternoon. Gusts up to 20 kt. Seas 2 to 4 ft. A slight chance of
showers this morning, then a chance of showers this afternoon.
.TONIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Gusts up to 20 kt. Seas 2 to 4 ft. Patchy fog. A chance
of showers. Vsby 1 to 3 NM.
.FRI...NW winds 5 to 10 kt, becoming E in the afternoon. Seas
2 to 3 ft. Patchy fog. Vsby 1 to 3 NM.
.FRI NIGHT...SE winds 5 to 10 kt, becoming NE with gusts up to
25 kt after midnight. Seas around 2 ft. Patchy fog. Vsby 1 to
3 NM.
.SAT...NE winds 15 to 20 kt with gusts up to 35 kt. Seas 3 to
5 ft. Patchy fog. A chance of rain. Vsby 1 to 3 NM.
.SAT NIGHT...NE winds 15 to 20 kt with gusts up to 35 kt. Seas
5 to 8 ft.
.SUN...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to
8 ft.
.SUN NIGHT...NE winds 5 to 10 kt with gusts up to 25 kt. Seas
4 to 6 ft.
.MON...NE winds 5 to 10 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.MON NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas
3 to 5 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.

$$

ANZ251-272030-
Massachusetts Bay and Ipswich Bay-
348 AM EDT Thu Jul 27 2017

.TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers this morning, then a chance of showers this afternoon.
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A
chance of showers. Vsby 1 to 3 NM.
.FRI...NW winds around 5 kt, becoming E in the afternoon. Seas
around 2 ft. Patchy fog. Vsby 1 to 3 NM.
.FRI NIGHT...E winds 5 to 10 kt, becoming NE with gusts up to
25 kt after midnight. Seas around 2 ft. Patchy fog. Vsby 1 to
3 NM.
.SAT...NE winds 10 to 15 kt with gusts up to 35 kt. Seas 2 to
4 ft. Patchy fog. Vsby 1 to 3 NM.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 35 kt. Seas
4 to 6 ft.
.SUN...NE winds 10 to 15 kt with gusts up to 30 kt. Seas 3 to
5 ft.
.SUN NIGHT...NE winds 5 to 10 kt with gusts up to 25 kt. Seas
2 to 4 ft.
.MON...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to
4 ft.
.MON NIGHT...SW winds 5 to 10 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.

$$

ANZ231-272030-
Cape Cod Bay-
348 AM EDT Thu Jul 27 2017

.TODAY...S winds 5 to 10 kt. Gusts up to 20 kt this afternoon.
Seas around 2 ft. A slight chance of showers this afternoon.
.TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening.
Seas 1 foot or less. Patchy fog. A chance of showers. Vsby 1 to
3 NM.
.FRI...W winds around 5 kt, becoming E in the afternoon. Seas
1 foot or less. Patchy fog. Vsby 1 to 3 NM.
.FRI NIGHT...E winds 5 to 10 kt. Seas 1 foot or less. Patchy fog.
A chance of rain. Vsby 1 to 3 NM.
.SAT...NE winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 35 kt. Seas 2 to 4 ft. Patchy fog. A
chance of rain. Vsby 1 to 3 NM.
.SAT NIGHT...NE winds 15 to 20 kt, becoming N 10 to 15 kt after
midnight. Gusts up to 35 kt. Seas 3 to 5 ft.
.SUN...NE winds 10 to 15 kt with gusts up to 30 kt. Seas 3 to
5 ft.
.SUN NIGHT...NE winds 5 to 10 kt with gusts up to 25 kt. Seas
2 to 4 ft.
.MON...NE winds 5 to 10 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.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.

$$

ANZ254-272030-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
348 AM EDT Thu Jul 27 2017

.TODAY...S winds 5 to 10 kt. Gusts up to 20 kt this afternoon.
Seas 2 to 4 ft. A slight chance of showers this afternoon.
.TONIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to
4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less.
.FRI...SW winds 5 to 10 kt, becoming S in the afternoon. Seas
2 to 3 ft. Patchy fog. Vsby 1 NM or less.
.FRI NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Rain
likely. Vsby 1 NM or less.
.SAT...NE winds 10 to 15 kt with gusts up to 25 kt, increasing to
15 to 20 kt with gusts up to 35 kt in the afternoon. Seas 2 to
4 ft. Patchy fog. Rain likely. Vsby 1 to 3 NM.
.SAT NIGHT...NE winds 15 to 20 kt with gusts up to 35 kt. Seas
4 to 7 ft. A chance of rain. Vsby 1 to 3 NM.
.SUN...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to
8 ft.
.SUN NIGHT...NE winds 5 to 10 kt with gusts up to 30 kt. Seas
4 to 7 ft.
.MON...NE winds 5 to 10 kt with gusts up to 25 kt. Seas 4 to
7 ft.
.MON NIGHT...N winds 5 to 10 kt with gusts up to 25 kt. Seas 4 to
6 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.

$$

ANZ255-272030-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
348 AM EDT Thu Jul 27 2017

.TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft.
.TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt after midnight.
Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or
less.
.FRI...S winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 NM
or less.
.FRI NIGHT...SE winds 5 to 10 kt, becoming E 10 to 15 kt after
midnight. Seas 2 to 3 ft. Patchy fog. Rain likely. Vsby 1 NM or
less.
.SAT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
3 ft. Patchy fog. Rain likely. Vsby 1 to 3 NM.
.SAT NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 6 ft. A chance of rain. Vsby 1 to 3 NM.
.SUN...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to
7 ft.
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas
4 to 7 ft.
.MON...NE winds 10 to 15 kt with gusts up to 30 kt. Seas 4 to
7 ft.
.MON NIGHT...NE winds around 10 kt with gusts up to 25 kt. Seas
4 to 6 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.

$$

ANZ256-272030-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
348 AM EDT Thu Jul 27 2017

.TODAY...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt after midnight.
Seas around 3 ft. Patchy fog. A chance of showers. Vsby 1 NM or
less.
.FRI...SW winds 5 to 10 kt, becoming S in the afternoon. Seas
2 to 3 ft. Patchy fog. Vsby 1 NM or less.
.FRI NIGHT...SE winds 5 to 10 kt, becoming E 10 to 15 kt with
gusts up to 20 kt after midnight. Seas around 2 ft. Patchy fog.
Rain likely. Vsby 1 to 3 NM.
.SAT...NE winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to
5 ft. Patchy fog. Rain likely. Vsby 1 to 3 NM.
.SAT NIGHT...NE winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Gusts up to 35 kt. Seas 4 to 7 ft. A chance of
rain. Vsby 1 to 3 NM.
.SUN...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to
8 ft.
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 30 kt. Seas
5 to 7 ft.
.MON...NE winds 10 to 15 kt with gusts up to 30 kt. Seas 5 to
7 ft.
.MON NIGHT...NE winds around 10 kt with gusts up to 30 kt. Seas
4 to 7 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.

$$

ANZ232-272030-
Nantucket Sound-
348 AM EDT Thu Jul 27 2017

.TODAY...S winds 5 to 10 kt. Seas around 2 ft. A slight chance of
showers this afternoon.
.TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening.
Seas around 2 ft. Patchy fog. A chance of showers. Vsby 1 NM or
less.
.FRI...S winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. Vsby
1 NM or less.
.FRI NIGHT...SE winds 5 to 10 kt, becoming E after midnight. Seas
1 foot or less. Patchy fog. Rain likely. Vsby 1 NM or less.
.SAT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
3 ft. Patchy fog. Rain likely. Vsby 1 to 3 NM.
.SAT NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 4 ft. A chance of rain. Vsby 1 to 3 NM.
.SUN...NE winds 10 to 15 kt with gusts up to 30 kt. Seas 2 to
4 ft.
.SUN NIGHT...NE winds 5 to 10 kt with gusts up to 25 kt. Seas
2 to 4 ft.
.MON...NE winds 5 to 10 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.MON NIGHT...NE winds 5 to 10 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.

$$

ANZ233-272030-
Vineyard Sound-
348 AM EDT Thu Jul 27 2017

.TODAY...SW winds 5 to 10 kt. Seas around 2 ft. A slight chance
of showers this afternoon.
.TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt after midnight.
Seas around 2 ft. Patchy fog. A chance of showers. Vsby 1 to
3 NM.
.FRI...SW winds around 5 kt, becoming S in the afternoon. Seas
1 foot or less. Patchy fog. Vsby 1 to 3 NM.
.FRI NIGHT...SE winds 5 to 10 kt, becoming NE 10 to 15 kt with
gusts up to 20 kt after midnight. Seas 1 foot or less. Patchy
fog. Rain likely. Vsby 1 to 3 NM.
.SAT...NE winds 15 to 20 kt with gusts up to 35 kt. Seas 2 to
4 ft. Patchy fog. Rain likely. Vsby 1 to 3 NM.
.SAT NIGHT...NE winds 15 to 20 kt with gusts up to 35 kt. Seas
3 to 5 ft. A chance of rain. Vsby 1 to 3 NM.
.SUN...NE winds 10 to 15 kt with gusts up to 30 kt. Seas 3 to
5 ft.
.SUN NIGHT...NE winds around 10 kt with gusts up to 25 kt. Seas
2 to 4 ft.
.MON...NE winds around 10 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.MON NIGHT...NE winds around 10 kt with gusts up to 25 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.

$$

ANZ234-272030-
Buzzards Bay-
348 AM EDT Thu Jul 27 2017

.TODAY...SW winds 5 to 10 kt. Seas around 2 ft. A slight chance
of showers this afternoon.
.TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening.
Seas 1 foot or less. Patchy fog. A chance of showers. Vsby 1 to
3 NM.
.FRI...W winds around 5 kt, becoming S in the afternoon. Seas
1 foot or less. Patchy fog. Vsby 1 to 3 NM.
.FRI NIGHT...SE winds 5 to 10 kt, becoming NE with gusts up to
20 kt after midnight. Seas 1 foot or less. Patchy fog. Rain
likely. Vsby 1 to 3 NM.
.SAT...NE winds 15 to 20 kt with gusts up to 35 kt. Seas 2 to
4 ft. Patchy fog. Rain likely. Vsby 1 to 3 NM.
.SAT NIGHT...NE winds 15 to 20 kt, becoming N 10 to 15 kt after
midnight. Gusts up to 35 kt. Seas 3 to 5 ft. A chance of rain.
.SUN...NE winds 10 to 15 kt with gusts up to 30 kt. Seas 3 to
5 ft.
.SUN NIGHT...NE winds 5 to 10 kt with gusts up to 25 kt. Seas
2 to 4 ft.
.MON...NE winds 5 to 10 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.MON NIGHT...NW winds 5 to 10 kt with gusts up to 25 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.

$$

ANZ235-272030-
Rhode Island Sound-
348 AM EDT Thu Jul 27 2017

.TODAY...SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers this afternoon.
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A
chance of showers. Vsby 1 to 3 NM.
.FRI...SW winds 5 to 10 kt, becoming S in the afternoon. Seas
around 2 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM.
.FRI NIGHT...SE winds 5 to 10 kt, becoming NE 10 to 15 kt with
gusts up to 20 kt after midnight. Seas around 2 ft. Patchy fog.
Rain likely. Vsby 1 to 3 NM.
.SAT...NE winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. Gusts up to 35 kt. Seas 2 to 4 ft. Patchy fog. Rain
likely. Vsby 1 to 3 NM.
.SAT NIGHT...NE winds 20 to 25 kt, becoming N 15 to 20 kt after
midnight. Gusts up to 35 kt. Seas 3 to 5 ft. A chance of rain.
Vsby 1 to 3 NM.
.SUN...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft.
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas
3 to 5 ft.
.MON...NE winds 5 to 10 kt with gusts up to 30 kt. Seas 3 to
5 ft.
.MON NIGHT...NE winds 5 to 10 kt with gusts up to 25 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.

$$

ANZ237-272030-
Block Island Sound-
348 AM EDT Thu Jul 27 2017

.TODAY...SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers this afternoon.
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A
chance of showers. Vsby 1 to 3 NM.
.FRI...SW winds around 5 kt, becoming S in the afternoon. Seas
around 2 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM.
.FRI NIGHT...SE winds 5 to 10 kt, becoming NE 10 to 15 kt with
gusts up to 20 kt after midnight. Seas around 2 ft. Patchy fog.
Rain likely. Vsby 1 to 3 NM.
.SAT...NE winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. Gusts up to 35 kt. Seas 2 to 4 ft. Patchy fog. Rain
likely. Vsby 1 to 3 NM.
.SAT NIGHT...NE winds 15 to 20 kt with gusts up to 35 kt. Seas
3 to 5 ft. A chance of rain. Vsby 1 to 3 NM.
.SUN...NE winds 10 to 15 kt with gusts up to 30 kt. Seas 3 to
5 ft.
.SUN NIGHT...NE winds 5 to 10 kt with gusts up to 25 kt. Seas
3 to 5 ft.
.MON...NE winds 5 to 10 kt with gusts up to 30 kt. Seas 3 to
5 ft.
.MON NIGHT...N winds 5 to 10 kt with gusts up to 25 kt. Seas 3 to
5 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.

$$

ANZ230-272030-
Boston Harbor-
348 AM EDT Thu Jul 27 2017

.TODAY...SW winds 5 to 10 kt. Waves around 2 ft. A slight chance
of showers this morning, then a chance of showers this afternoon.
.TONIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. A chance of
showers.
.FRI...NW winds around 5 kt, becoming E in the afternoon. Waves
1 foot or less.
.FRI NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt after
midnight. Waves around 2 ft.
.SAT...NE winds 10 to 15 kt with gusts up to 30 kt. Waves 2 to
3 ft. Patchy fog. Vsby 1 to 3 NM.
.SAT NIGHT...NE winds around 10 kt with gusts up to 30 kt. Waves
2 to 3 ft.
.SUN...NE winds 5 to 10 kt with gusts up to 25 kt. Waves 2 to
3 ft.
.SUN NIGHT...NE winds around 5 kt. Waves 1 foot or less.
.MON...NE winds around 5 kt. Waves 1 foot or less.
.MON NIGHT...SW winds around 5 kt. Waves 1 foot or less.

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.

$$

ANZ236-272030-
Narragansett Bay-
348 AM EDT Thu Jul 27 2017

.TODAY...SW winds 5 to 10 kt. Waves around 2 ft. A slight chance
of showers this afternoon.
.TONIGHT...SW winds 5 to 10 kt. Waves around 2 ft. Patchy fog. A
chance of showers. Vsby 1 to 3 NM.
.FRI...W winds around 5 kt, becoming S in the afternoon. Waves
1 foot or less.
.FRI NIGHT...SE winds around 5 kt, becoming NE with gusts up to
20 kt after midnight. Waves around 2 ft. Patchy fog. A chance of
rain. Vsby 1 to 3 NM.
.SAT...NE winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Waves 2 to 3 ft. Rain likely. Vsby
1 to 3 NM.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 35 kt. Waves
2 to 3 ft. A chance of rain.
.SUN...NE winds 10 to 15 kt with gusts up to 30 kt. Waves 2 to
3 ft.
.SUN NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Waves
around 2 ft.
.MON...NE winds 5 to 10 kt with gusts up to 25 kt. Waves 2 to
3 ft.
.MON NIGHT...NW winds 5 to 10 kt with gusts up to 25 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


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.