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 221523
CWFBOX

Coastal Waters Forecast
National Weather Service Taunton MA
1123 AM EDT Fri Sep 22 2017

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

ANZ200-230400-
1123 AM EDT Fri Sep 22 2017

.Synopsis for Massachusetts and Rhode Island coastal waters...
Tropical Storm Jose well southeast of Nantucket will slowly drift
west and weaken over the next few days. Strong winds and chaotic
seas will continue today, but then diminish this evening through
the weekend. Scattered rain bands will persist, especially across
the southern half of the waters, then diminish over the weekend. A
ridge of high pressure may build over the waters for Sunday and
Monday. Hurricane Maria may approach the southern waters the  middle
of next week. Mariners should monitor the latest forecasts  from the
National Hurricane Center at www.nhc.noaa.gov.

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.

$$

ANZ250-230400-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1123 AM EDT Fri Sep 22 2017

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...Tropical storm conditions possible. NE winds
25 to 30 kt with gusts up to 40 kt. Seas around 14 ft. Patchy
fog. Showers. Vsby 1 to 3 NM.
.TONIGHT...NE winds 20 to 25 kt with gusts up to 35 kt,
diminishing to 15 to 20 kt with gusts up to 25 kt after midnight.
Seas around 13 ft, subsiding to 10 ft after midnight. Patchy fog
in the evening. Areas of fog after midnight. A chance of showers.
Vsby 1 to 3 NM.
.SAT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 7 to
8 ft. Areas of fog in the morning with vsby 1 to 3 NM.
.SAT NIGHT...N winds 5 to 10 kt. Seas 4 to 5 ft.
.SUN...NE winds 5 to 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...S winds around 5 kt. Seas around 3 ft.
.MON...E winds around 5 kt. Seas around 3 ft.
.MON NIGHT...SE winds around 5 kt. Seas around 3 ft.
.TUE...NE winds 5 to 10 kt. Seas around 3 ft. A chance of
showers.
.TUE NIGHT...E winds around 10 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.

$$

ANZ251-230400-
Massachusetts Bay and Ipswich Bay-
1123 AM EDT Fri Sep 22 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...NE winds 25 to 30 kt with gusts up to 40 kt.
Seas 12 to 13 ft. Patchy fog. Showers. Vsby 1 to 3 NM.
.TONIGHT...NE winds 20 to 25 kt with gusts up to 35 kt,
diminishing to 15 to 20 kt with gusts up to 25 kt after midnight.
Seas around 12 ft, subsiding to 8 ft after midnight. Areas of
fog. A chance of showers. Vsby 1 to 3 NM.
.SAT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas around
7 ft, subsiding to 5 ft in the afternoon.
.SAT NIGHT...NE winds 5 to 10 kt, becoming N after midnight. Seas
3 to 4 ft.
.SUN...N winds around 5 kt, becoming E in the afternoon. Seas
around 2 ft.
.SUN NIGHT...SW winds around 5 kt. Seas around 2 ft.
.MON...N winds around 5 kt, becoming E around 5 kt in the
afternoon. Seas around 2 ft.
.MON NIGHT...E winds around 5 kt. Seas around 2 ft.
.TUE...NE winds 5 to 10 kt. Seas around 2 ft. A chance of showers
in the afternoon.
.TUE NIGHT...NE winds 5 to 10 kt. Seas around 2 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.

$$

ANZ231-230400-
Cape Cod Bay-
1123 AM EDT Fri Sep 22 2017

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...Tropical storm conditions possible. NE winds
25 to 30 kt with gusts up to 40 kt. Seas around 9 ft. Patchy fog.
Showers. Vsby 1 to 3 NM.
.TONIGHT...NE winds 20 to 25 kt with gusts up to 35 kt,
diminishing to 15 to 20 kt with gusts up to 25 kt after midnight.
Seas around 9 ft, subsiding to 6 ft after midnight. Areas of fog.
Showers in the evening. A chance of showers after midnight. Vsby
1 to 3 NM.
.SAT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to
5 ft. Areas of fog in the morning. A chance of showers in the
morning. Vsby 1 to 3 NM.
.SAT NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft.
.SUN...NE winds 5 to 10 kt. Seas around 2 ft.
.SUN NIGHT...E winds around 5 kt. Seas around 2 ft.
.MON...E winds around 5 kt. Seas around 2 ft.
.MON NIGHT...E winds around 5 kt. Seas around 2 ft.
.TUE...NE winds 5 to 10 kt. Seas around 2 ft. A chance of
showers.
.TUE NIGHT...NE winds 5 to 10 kt. Seas around 2 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.

$$

ANZ254-230400-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1123 AM EDT Fri Sep 22 2017

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...Tropical storm conditions expected. NE winds
25 to 30 kt with gusts up to 45 kt. Seas 14 to 15 ft. Patchy fog.
Showers. Vsby 1 to 3 NM.
.TONIGHT...NE winds 20 to 25 kt with gusts up to 40 kt,
diminishing to 15 to 20 kt with gusts up to 25 kt after midnight.
Seas around 13 ft, subsiding to 11 ft after midnight. Areas of
fog. Showers in the evening. A chance of showers after midnight.
Vsby 1 to 3 NM.
.SAT...NE winds 10 to 15 kt with gusts up to 30 kt. Seas around
9 ft, subsiding to 7 ft in the afternoon. Areas of fog. A chance
of showers in the morning. Vsby 1 to 3 NM.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt,
becoming N 5 to 10 kt after midnight. Seas 5 to 6 ft. Areas of
fog in the evening with vsby 1 to 3 NM.
.SUN...NE winds 5 to 10 kt. Seas around 5 ft.
.SUN NIGHT...NE winds 5 to 10 kt, becoming E after midnight. Seas
around 6 ft.
.MON...NE winds around 5 kt. Seas around 7 ft.
.MON NIGHT...E winds around 5 kt. Seas around 7 ft. A chance of
showers after midnight.
.TUE...NE winds 5 to 10 kt. Seas 7 to 8 ft. A chance of showers.
.TUE NIGHT...E winds 10 to 15 kt. Seas 8 to 9 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.

$$

ANZ255-230400-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1123 AM EDT Fri Sep 22 2017

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...Tropical storm conditions expected. NE winds
25 to 30 kt with gusts up to 45 kt. Seas 11 to 12 ft. Patchy fog.
Showers. Vsby 1 to 3 NM.
.TONIGHT...Tropical storm conditions possible. NE winds 25 to
30 kt with gusts up to 40 kt, diminishing to 20 to 25 kt with
gusts up to 30 kt after midnight. Seas 9 to 10 ft. Patchy fog in
the evening, then areas of fog after midnight. Showers, mainly in
the evening. Vsby 1 to 3 NM.
.SAT...N winds 15 to 20 kt with gusts up to 30 kt. Seas 7 to
8 ft. Areas of fog. A chance of showers in the morning. Vsby 1 to
3 NM.
.SAT NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas
5 to 6 ft. Areas of fog in the evening with vsby 1 to 3 NM.
.SUN...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas around 5 ft.
.SUN NIGHT...NE winds 5 to 10 kt. Seas 6 to 7 ft.
.MON...NE winds 5 to 10 kt. Seas around 7 ft.
.MON NIGHT...E winds 5 to 10 kt. Seas around 8 ft. A chance of
showers after midnight.
.TUE...NE winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas around 9 ft. A chance of showers.
.TUE NIGHT...NE winds 10 to 15 kt. Seas around 10 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.

$$

ANZ256-230400-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1123 AM EDT Fri Sep 22 2017

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...Tropical storm conditions expected. N winds
25 to 30 kt with gusts up to 45 kt. Seas around 11 ft. Patchy
fog. Showers. Vsby 1 to 3 NM.
.TONIGHT...N winds 25 to 30 kt with gusts up to 40 kt,
diminishing to 20 to 25 kt with gusts up to 30 kt after midnight.
Seas around 11 ft, subsiding to 9 ft after midnight. Patchy fog
in the evening. Areas of fog after midnight. A chance of showers.
Vsby 1 to 3 NM in the evening.
.SAT...N winds 15 to 20 kt with gusts up to 30 kt. Seas 7 to
8 ft. Areas of fog. Vsby 1 to 3 NM in the morning.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt,
becoming N 5 to 10 kt after midnight. Seas 5 to 6 ft.
.SUN...NE winds 5 to 10 kt. Seas around 6 ft.
.SUN NIGHT...NE winds 5 to 10 kt. Seas around 6 ft.
.MON...NE winds around 5 kt. Seas around 7 ft.
.MON NIGHT...E winds 5 to 10 kt. Seas 8 to 9 ft.
.TUE...NE winds 5 to 10 kt. Seas around 9 ft. A chance of
showers.
.TUE NIGHT...NE winds 10 to 15 kt. Seas around 10 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.

$$

ANZ232-230400-
Nantucket Sound-
1123 AM EDT Fri Sep 22 2017

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...Tropical storm conditions expected. NE winds
25 to 30 kt with gusts up to 45 kt. Seas around 6 ft. Patchy fog.
Showers. Vsby 1 to 3 NM.
.TONIGHT...NE winds 25 to 30 kt with gusts up to 40 kt,
diminishing to 15 to 20 kt with gusts up to 30 kt after midnight.
Seas 5 to 6 ft. Areas of fog. Showers in the evening. A chance of
showers after midnight. Vsby 1 to 3 NM.
.SAT...NE winds 15 to 20 kt, becoming N 10 to 15 kt in the
afternoon. Gusts up to 30 kt. Seas around 4 ft. Areas of fog. A
chance of showers in the morning. Vsby 1 to 3 NM.
.SAT NIGHT...N winds 10 to 15 kt with gusts up to 25 kt,
diminishing to 5 to 10 kt after midnight. Seas around 3 ft.
.SUN...NE winds 5 to 10 kt. Seas around 3 ft.
.SUN NIGHT...NE winds 5 to 10 kt, diminishing to around 5 kt
after midnight. Seas around 3 ft.
.MON...NE winds around 5 kt. Seas around 3 ft.
.MON NIGHT...E winds around 5 kt. Seas 3 to 4 ft.
.TUE...NE winds 5 to 10 kt. Seas around 4 ft. A chance of
showers.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 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.

$$

ANZ233-230400-
Vineyard Sound-
1123 AM EDT Fri Sep 22 2017

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...Tropical storm conditions possible. N winds
25 to 30 kt with gusts up to 40 kt. Seas around 6 ft. Patchy fog.
Showers. Vsby 1 to 3 NM.
.TONIGHT...N winds 20 to 25 kt, diminishing to 15 to 20 kt after
midnight. Gusts up to 35 kt. Seas around 6 ft, subsiding to 3 ft
after midnight. Patchy fog in the evening, then areas of fog
after midnight. Showers, mainly in the evening. Vsby 1 to 3 NM.
.SAT...N winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 30 kt. Seas around 3 ft. Areas of fog. A
chance of showers in the morning with vsby 1 to 3 NM.
.SAT NIGHT...N winds 10 to 15 kt with gusts up to 25 kt,
diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Areas
of fog in the evening.
.SUN...NE winds 5 to 10 kt. Seas around 3 ft.
.SUN NIGHT...E winds 5 to 10 kt, becoming NE after midnight. Seas
around 3 ft.
.MON...NE winds around 5 kt. Seas around 4 ft.
.MON NIGHT...E winds around 5 kt. Seas 4 to 5 ft.
.TUE...NE winds 5 to 10 kt. Seas around 5 ft. A chance of
showers.
.TUE NIGHT...NE winds 10 to 15 kt. Seas around 5 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.

$$

ANZ234-230400-
Buzzards Bay-
1123 AM EDT Fri Sep 22 2017

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...Tropical storm conditions possible. N winds
25 to 30 kt with gusts up to 40 kt. Seas around 6 ft. Patchy fog.
Showers. Vsby 1 to 3 NM.
.TONIGHT...N winds 20 to 25 kt, diminishing to 15 to 20 kt after
midnight. Gusts up to 35 kt. Seas around 6 ft, subsiding to 3 ft
after midnight. Patchy fog in the evening, then areas of fog
after midnight. Showers, mainly in the evening. Vsby 1 to 3 NM.
.SAT...N winds 10 to 15 kt with gusts up to 30 kt. Seas around
2 ft. Areas of fog in the morning. A chance of showers in the
morning with vsby 1 to 3 NM.
.SAT NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft.
.SUN...NE winds 5 to 10 kt. Seas around 2 ft.
.SUN NIGHT...NE winds around 5 kt. Seas 2 to 3 ft.
.MON...E winds around 5 kt. Seas around 3 ft.
.MON NIGHT...E winds around 5 kt. Seas around 3 ft.
.TUE...NE winds 5 to 10 kt. Seas around 4 ft. A chance of
showers.
.TUE NIGHT...NE winds 5 to 10 kt. Seas around 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.

$$

ANZ235-230400-
Rhode Island Sound-
1123 AM EDT Fri Sep 22 2017

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...Tropical storm conditions expected. N winds
25 to 30 kt with gusts up to 40 kt. Seas 7 to 8 ft. Patchy fog.
Showers. Vsby 1 to 3 NM.
.TONIGHT...N winds 25 to 30 kt, diminishing to 20 to 25 kt after
midnight. Seas 6 to 7 ft. Areas of fog. Showers likely, mainly in
the evening. Vsby 1 to 3 NM.
.SAT...N winds 15 to 20 kt with gusts up to 30 kt. Seas around
5 ft. Areas of fog in the morning with vsby 1 to 3 NM.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt,
becoming N 5 to 10 kt after midnight. Seas around 4 ft.
.SUN...NE winds 5 to 10 kt. Seas around 4 ft.
.SUN NIGHT...NE winds 5 to 10 kt. Seas around 5 ft.
.MON...NE winds around 5 kt. Seas 5 to 6 ft.
.MON NIGHT...E winds around 5 kt. Seas 6 to 7 ft.
.TUE...NE winds 5 to 10 kt. Seas around 7 ft. A chance of showers
in the afternoon.
.TUE NIGHT...NE winds 10 to 15 kt. Seas around 8 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.

$$

ANZ237-230400-
Block Island Sound-
1123 AM EDT Fri Sep 22 2017

...TROPICAL STORM WARNING IN EFFECT...

.THIS AFTERNOON...Tropical storm conditions possible. N winds
25 to 30 kt with gusts up to 40 kt. Seas around 7 ft. Showers
likely. Patchy fog with vsby 1 to 3 NM.
.TONIGHT...N winds 20 to 25 kt, diminishing to 15 to 20 kt after
midnight. Gusts up to 35 kt. Seas 6 to 7 ft. Patchy fog in the
evening. A chance of showers in the evening with vsby 1 to 3 NM.
.SAT...N winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas around 5 ft. Areas of fog in
the morning with vsby 1 to 3 NM.
.SAT NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas around 4 ft.
.SUN...N winds 5 to 10 kt, becoming E in the afternoon. Seas
around 4 ft.
.SUN NIGHT...E winds around 5 kt, becoming NE after midnight.
Seas around 5 ft.
.MON...NE winds around 5 kt, becoming E in the afternoon. Seas
5 to 6 ft.
.MON NIGHT...E winds around 5 kt. Seas 6 to 7 ft.
.TUE...NE winds 5 to 10 kt. Seas around 7 ft. A chance of showers
in the afternoon.
.TUE NIGHT...NE winds 10 to 15 kt. Seas around 8 ft. A chance of
showers after midnight.

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.

$$

ANZ230-230400-
Boston Harbor-
1123 AM EDT Fri Sep 22 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...N winds 20 to 25 kt with gusts up to 35 kt.
Waves around 2 ft, except up to 10 ft at the outer harbor
entrance. Patchy fog. Showers. Vsby 1 to 3 NM.
.TONIGHT...NE winds 20 to 25 kt with gusts up to 30 kt, becoming
N 10 to 15 kt with gusts up to 20 kt after midnight. Waves around
9 ft, subsiding to 6 ft after midnight. Showers likely, mainly in
the evening. Patchy fog in the evening with vsby 1 to 3 NM.
.SAT...NE winds 5 to 10 kt with gusts up to 20 kt. Waves around
4 ft.
.SAT NIGHT...N winds around 5 kt. Waves around 3 ft in the
evening, then 1 foot or less.
.SUN...N winds around 5 kt, becoming E in the afternoon. Waves
1 foot or less.
.SUN NIGHT...SE winds around 5 kt, becoming SW around 5 kt after
midnight. Waves 1 foot or less.
.MON...N winds around 5 kt, becoming E around 5 kt in the
afternoon. Waves 1 foot or less.
.MON NIGHT...SE winds around 5 kt, becoming N around 5 kt after
midnight. Waves 1 foot or less.
.TUE...NE winds around 5 kt. Waves 1 foot or less. A chance of
showers in the afternoon.
.TUE NIGHT...NE winds around 5 kt. Waves 1 foot or less. 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.

$$

ANZ236-230400-
Narragansett Bay-
1123 AM EDT Fri Sep 22 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...N winds 20 to 25 kt with gusts up to 40 kt.
Waves around 3 ft. Patchy fog. Showers. Vsby 1 to 3 NM.
.TONIGHT...N winds 15 to 20 kt with gusts up to 35 kt,
diminishing to 10 to 15 kt with gusts up to 25 kt after midnight.
Waves around 3 ft. Patchy fog in the evening, then areas of fog
after midnight. Showers likely, mainly in the evening. Vsby 1 to
3 NM.
.SAT...N winds 10 to 15 kt with gusts up to 25 kt. Waves around
3 ft. Areas of fog in the morning with vsby 1 to 3 NM.
.SAT NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Waves 2 to 3 ft.
.SUN...NE winds around 5 kt. Waves around 3 ft.
.SUN NIGHT...E winds around 5 kt, becoming N after midnight.
Waves around 3 ft.
.MON...E winds around 5 kt. Waves around 3 ft.
.MON NIGHT...NE winds around 5 kt. Waves around 3 ft.
.TUE...NE winds 5 to 10 kt. Waves around 3 ft. A chance of
showers in the afternoon.
.TUE NIGHT...NE winds 5 to 10 kt. Waves around 3 ft, except 5 to
6 ft at the bay entrance. 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.

$$

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.