Coastal Waters Forecast
Issued by NWS Boston, MA

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FZUS51 KBOX 210118
CWFBOX

Coastal Waters Forecast
National Weather Service Taunton MA
918 PM EDT Fri Oct 20 2017

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

ANZ200-211415-
918 PM EDT Fri Oct 20 2017

.Synopsis for Massachusetts and Rhode Island coastal waters...
Strong high pressure over the Appalachians will move east across
the southern New England coastal waters Saturday, then east of
New England Sunday. A strong cold front approaches from the west
late Tuesday.

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.

$$

ANZ250-211415-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
918 PM EDT Fri Oct 20 2017

.OVERNIGHT...NW winds 5 to 10 kt. Seas 2 to 4 ft.
.SAT...W winds around 5 kt, becoming S in the afternoon. Seas
2 to 3 ft.
.SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN...SW winds 5 to 10 kt. Seas 2 to 4 ft.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft.
.MON...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up
to 25 kt in the afternoon. Seas 2 to 3 ft.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft.
.TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. A chance of showers.
.TUE NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas
8 to 11 ft. Showers likely.
.WED...S winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to
9 ft. Showers likely. Vsby 1 to 3 NM.
.WED NIGHT...SW winds 10 to 15 kt. Seas 4 to 7 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.

$$

ANZ251-211415-
Massachusetts Bay and Ipswich Bay-
918 PM EDT Fri Oct 20 2017

.OVERNIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft.
.SAT...W winds around 5 kt, becoming S in the afternoon. Seas
around 2 ft.
.SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN...SW winds around 5 kt, becoming S in the afternoon. Seas
around 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft.
.MON NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft.
.TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. A chance of showers.
.TUE NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 7 ft. Showers likely.
.WED...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Showers likely.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of
showers. Vsby 1 to 3 NM.

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.

$$

ANZ231-211415-
Cape Cod Bay-
918 PM EDT Fri Oct 20 2017

.OVERNIGHT...NW winds 5 to 10 kt. Seas around 2 ft.
.SAT...W winds around 5 kt, becoming SW in the afternoon. Seas
1 foot or less.
.SAT NIGHT...SW winds around 5 kt. Seas 1 foot or less.
.SUN...SW winds 5 to 10 kt. Seas 1 foot or less.
.SUN NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
.MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft.
.TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. A chance of showers.
.TUE NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 5 ft. Showers likely.
.WED...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Showers likely.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers. Vsby 1 to 3 NM.

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.

$$

ANZ254-211415-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
918 PM EDT Fri Oct 20 2017

.OVERNIGHT...NW winds 5 to 10 kt with gusts up to 20 kt, becoming
N. Seas 2 to 4 ft.
.SAT...N winds around 5 kt, becoming SW in the afternoon. Seas
2 to 4 ft.
.SAT NIGHT...SW winds around 5 kt. Seas 2 to 3 ft.
.SUN...S winds 5 to 10 kt. Seas 2 to 4 ft.
.SUN NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft.
.MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft.
.TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
7 ft. A chance of showers.
.TUE NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas
8 to 11 ft. Showers likely.
.WED...S winds 20 to 25 kt with gusts up to 30 kt. Seas 8 to
11 ft, except 10 to 15 ft S and E of Nantucket. Showers likely.
Vsby 1 to 3 NM.
.WED NIGHT...SW winds 5 to 10 kt. Seas 6 to 9 ft. Showers likely.
Vsby 1 to 3 NM.

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.

$$

ANZ255-211415-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
918 PM EDT Fri Oct 20 2017

.OVERNIGHT...N winds 5 to 10 kt. Seas 2 to 4 ft.
.SAT...NE winds around 5 kt, becoming SW in the afternoon. Seas
2 to 4 ft.
.SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN...S winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft.
.TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
8 ft. A chance of showers.
.TUE NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas
9 to 14 ft. Showers likely.
.WED...S winds 20 to 25 kt with gusts up to 30 kt. Seas 9 to
12 ft. Showers likely. Vsby 1 to 3 NM.
.WED NIGHT...SW winds 5 to 10 kt. Seas 7 to 10 ft. A chance of
showers. Vsby 1 to 3 NM.

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.

$$

ANZ256-211415-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
918 PM EDT Fri Oct 20 2017

.OVERNIGHT...N winds 5 to 10 kt. Seas 2 to 4 ft.
.SAT...NE winds around 5 kt, becoming SW in the afternoon. Seas
2 to 3 ft.
.SAT NIGHT...SW winds 5 to 10 kt. Seas around 3 ft.
.SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft.
.MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft.
.TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
8 ft. A chance of showers.
.TUE NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas
9 to 14 ft. Showers likely.
.WED...S winds 15 to 20 kt with gusts up to 25 kt. Seas 9 to
13 ft. Showers likely.
.WED NIGHT...W winds 5 to 10 kt. Seas 7 to 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.

$$

ANZ232-211415-
Nantucket Sound-
918 PM EDT Fri Oct 20 2017

.OVERNIGHT...N winds 5 to 10 kt. Seas around 2 ft.
.SAT...NW winds around 5 kt, becoming SW in the afternoon. Seas
around 2 ft.
.SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.SUN...SW winds 5 to 10 kt. Seas around 2 ft.
.SUN NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft.
.TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. A chance of showers.
.TUE NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 7 ft. Showers likely.
.WED...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Showers likely.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Showers likely.
Vsby 1 to 3 NM.

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.

$$

ANZ233-211415-
Vineyard Sound-
918 PM EDT Fri Oct 20 2017

.OVERNIGHT...N winds 5 to 10 kt. Seas around 2 ft.
.SAT...NW winds around 5 kt, becoming SW in the afternoon. Seas
1 foot or less.
.SAT NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less.
.SUN...SW winds 5 to 10 kt. Seas 1 foot or less.
.SUN NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft.
.TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. A chance of showers.
.TUE NIGHT...S winds around 20 kt with gusts up to 30 kt. Seas
4 to 7 ft. Showers likely.
.WED...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
7 ft. Showers likely.
.WED NIGHT...SW winds 5 to 10 kt. Seas 3 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.

$$

ANZ234-211415-
Buzzards Bay-
918 PM EDT Fri Oct 20 2017

.OVERNIGHT...N winds 5 to 10 kt. Seas 1 foot or less.
.SAT...NW winds around 5 kt, becoming SW in the afternoon. Seas
1 foot or less.
.SAT NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less.
.SUN...SW winds 5 to 10 kt. Seas 1 foot or less.
.SUN NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
.MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft.
.MON NIGHT...S winds around 10 kt with gusts up to 20 kt. Seas
2 to 3 ft.
.TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. A chance of showers.
.TUE NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 5 ft. Showers likely. Vsby 1 to 3 NM.
.WED...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Showers likely. Vsby 1 to 3 NM.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers. Vsby 1 to 3 NM.

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.

$$

ANZ235-211415-
Rhode Island Sound-
918 PM EDT Fri Oct 20 2017

.OVERNIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft.
.SAT...NW winds around 5 kt, becoming SW in the afternoon. Seas
2 to 3 ft.
.SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.MON...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas around 2 ft.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft.
.TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. A chance of showers.
.TUE NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas
6 to 9 ft. Showers likely. Vsby 1 to 3 NM.
.WED...S winds 10 to 15 kt with gusts up to 25 kt. Seas 6 to
9 ft. Showers likely. Vsby 1 to 3 NM.
.WED NIGHT...SW winds 5 to 10 kt. Seas 5 to 7 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.

$$

ANZ237-211415-
Block Island Sound-
918 PM EDT Fri Oct 20 2017

.OVERNIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft.
.SAT...NW winds around 5 kt, becoming SW in the afternoon. Seas
2 to 3 ft.
.SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN...SW winds 5 to 10 kt. Seas around 2 ft.
.SUN NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. A chance of showers.
.TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Showers likely.
.TUE NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas
6 to 9 ft. Showers likely.
.WED...S winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to
8 ft. Showers likely.
.WED NIGHT...W winds 5 to 10 kt. Seas 4 to 7 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.

$$

ANZ230-211415-
Boston Harbor-
918 PM EDT Fri Oct 20 2017

.OVERNIGHT...NW winds 5 to 10 kt. Waves 1 foot or less.
.SAT...SW winds around 5 kt. Waves 1 foot or less.
.SAT NIGHT...SW winds around 5 kt. Waves 1 foot or less.
.SUN...S winds around 5 kt. Waves 1 foot or less.
.SUN NIGHT...SW winds around 5 kt. Waves 1 foot or less.
.MON...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Waves 1 foot or less.
.MON NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Waves 1 foot or less.
.TUE...S winds 10 to 15 kt with gusts up to 25 kt. Waves around
2 ft. Showers likely.
.TUE NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Waves
around 2 ft. Showers likely.
.WED...S winds 5 to 10 kt. Waves around 2 ft. Showers likely.
.WED NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. Patchy
fog. A chance of showers. Vsby 1 to 3 NM.

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.

$$

ANZ236-211415-
Narragansett Bay-
918 PM EDT Fri Oct 20 2017

.OVERNIGHT...NW winds around 5 kt. Waves around 2 ft.
.SAT...NW winds around 5 kt, becoming SW in the afternoon. Waves
around 2 ft.
.SAT NIGHT...SW winds 5 to 10 kt, diminishing to around 5 kt
after midnight. Waves around 2 ft.
.SUN...SW winds around 5 kt, becoming S in the afternoon. Waves
around 2 ft.
.SUN NIGHT...S winds around 5 kt. Waves around 2 ft. Patchy fog.
Vsby 1 to 3 NM.
.MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Waves 1 foot or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 2 to 3 ft. A chance of
showers.
.TUE...S winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to
4 ft. Showers likely.
.TUE NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Waves
3 to 5 ft. Showers likely.
.WED...S winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
4 ft, except 4 to 7 ft at the bay entrance. Showers likely.
.WED NIGHT...SW winds 5 to 10 kt. Waves 2 to 4 ft. Patchy fog. A
chance of showers. Vsby 1 to 3 NM.

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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