Coastal Waters Forecast
Issued by NWS Boston, MA

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FZUS51 KBOX 232309
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
708 PM EDT Mon May 23 2022

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

ANZ200-241200-
708 PM EDT Mon May 23 2022

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pressure builds into southeast Canada and then the maritimes
through midweek. Then a warm front moves north into the waters Thu,
and exits Friday into northern New England. A cold front sweeps
across the waters late Fri or Friday night, followed by high
pressure building into the Mid Atlantic region to south of New
England for Memorial Day weekend.

$$

ANZ250-241200-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
708 PM EDT Mon May 23 2022

.TONIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE...NE winds 10 to 15 kt with gusts up to 20 kt, becoming E
5 to 10 kt in the afternoon. Seas around 3 ft.
.TUE NIGHT...SE winds 5 to 10 kt, diminishing to around 5 kt
after midnight. Seas 2 to 3 ft.
.WED...SE winds around 5 kt, increasing to 5 to 10 kt in the
afternoon. Seas 2 to 4 ft.
.WED NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft.
.THU AND THU NIGHT...S winds 15 to 20 kt. Seas 4 to 6 ft.
.FRI...S winds 15 to 20 kt. Seas 5 to 6 ft.
.FRI NIGHT THROUGH SAT NIGHT...W winds 15 to 20 kt. Seas 4 to
6 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.

$$

ANZ251-241200-
Massachusetts Bay and Ipswich Bay-
708 PM EDT Mon May 23 2022

.TONIGHT...E winds around 5 kt, becoming N after midnight. Seas
around 2 ft.
.TUE...NE winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Seas 2 to 3 ft.
.TUE NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas
2 to 3 ft.
.WED...S winds around 5 kt, becoming SE in the afternoon. Seas
2 to 3 ft.
.WED NIGHT THROUGH THU NIGHT...S winds 10 to 15 kt with gusts up
to 25 kt. Seas 2 to 4 ft.
.FRI AND FRI NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt.
Seas 2 to 4 ft.
.SAT AND SAT NIGHT...SW winds 10 to 15 kt, becoming W 5 to 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.

$$

ANZ231-241200-
Cape Cod Bay-
708 PM EDT Mon May 23 2022

.TONIGHT...NE winds 5 to 10 kt. Seas around 2 ft. A slight chance
of sprinkles after midnight.
.TUE...NE winds 5 to 10 kt. Gusts up to 20 kt in the morning.
Seas around 2 ft.
.TUE NIGHT...E winds 5 to 10 kt. Seas around 2 ft.
.WED...E winds 5 to 10 kt. Seas around 2 ft.
.WED NIGHT THROUGH THU NIGHT...S winds 10 to 15 kt with gusts up
to 25 kt. Seas 2 to 4 ft.
.FRI THROUGH SAT NIGHT...SW winds 15 to 20 kt with gusts up to
25 kt. Seas 2 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.

$$

ANZ254-241200-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
708 PM EDT Mon May 23 2022

.TONIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt after midnight.
Seas 2 to 4 ft. A slight chance of sprinkles after midnight.
.TUE...NE winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt in the afternoon. Seas 3 to 4 ft.
.TUE NIGHT...E winds 5 to 10 kt. Seas around 3 ft.
.WED...E winds 5 to 10 kt, becoming SE in the afternoon. Seas
3 to 4 ft.
.WED NIGHT THROUGH THU NIGHT...S winds 15 to 20 kt. Seas 4 to
6 ft.
.FRI AND FRI NIGHT...SW winds 15 to 20 kt. Seas 5 to 7 ft.
.SAT...SW winds 10 to 15 kt. Seas 4 to 6 ft. A chance of showers.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 4 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.

$$

ANZ255-241200-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
708 PM EDT Mon May 23 2022

.TONIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt after midnight.
Seas 2 to 4 ft. A slight chance of sprinkles after midnight.
.TUE...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 3 ft.
.TUE NIGHT...NE winds around 10 kt. Seas 2 to 3 ft.
.WED...E winds 5 to 10 kt. Seas 2 to 4 ft.
.WED NIGHT...SE winds 5 to 10 kt. Seas 2 to 4 ft.
.THU AND THU NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI...S winds 15 to 20 kt. Seas 5 to 6 ft.
.FRI NIGHT AND SAT...SW winds 15 to 20 kt, diminishing to 10 to
15 kt. Seas 4 to 6 ft. A chance of showers.
.SAT NIGHT...SW winds 10 to 15 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.

$$

ANZ256-241200-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
708 PM EDT Mon May 23 2022

.TONIGHT...E winds 5 to 10 kt, becoming NE after midnight. Seas
2 to 3 ft. A slight chance of sprinkles after midnight.
.TUE...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 3 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft.
.WED...E winds 5 to 10 kt. Seas 2 to 4 ft.
.WED NIGHT THROUGH THU NIGHT...S winds 10 to 15 kt with gusts up
to 20 kt. Seas 4 to 6 ft.
.FRI THROUGH SAT NIGHT...SW winds 15 to 20 kt. Seas 4 to 6 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.

$$

ANZ232-241200-
Nantucket Sound-
708 PM EDT Mon May 23 2022

.TONIGHT...NE winds 5 to 10 kt. Seas around 2 ft. A slight chance
of sprinkles after midnight.
.TUE...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas around 2 ft.
.TUE NIGHT...E winds 5 to 10 kt. Seas around 2 ft.
.WED...E winds 5 to 10 kt. Seas around 2 ft.
.WED NIGHT THROUGH THU NIGHT...S winds 10 to 15 kt with gusts up
to 20 kt. Seas 2 to 4 ft.
.FRI THROUGH SAT NIGHT...SW winds 15 to 20 kt. Seas 2 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.

$$

ANZ233-241200-
Vineyard Sound-
708 PM EDT Mon May 23 2022

.TONIGHT...E winds 5 to 10 kt, becoming NE after midnight. Seas
around 2 ft. A slight chance of sprinkles after midnight.
.TUE...NE winds 5 to 10 kt. Gusts up to 20 kt in the morning.
Seas 1 foot or less.
.TUE NIGHT...E winds 5 to 10 kt. Seas 1 foot or less.
.WED...E winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft.
.WED NIGHT THROUGH THU NIGHT...S winds 10 to 15 kt with gusts up
to 20 kt. Seas 2 to 4 ft.
.FRI THROUGH SAT NIGHT...SW winds 15 to 20 kt. Seas 2 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.

$$

ANZ234-241200-
Buzzards Bay-
708 PM EDT Mon May 23 2022

.TONIGHT...NE winds 5 to 10 kt. Seas around 2 ft. A slight chance
of sprinkles after midnight.
.TUE...NE winds 5 to 10 kt. Seas 1 foot or less.
.TUE NIGHT...E winds 5 to 10 kt. Seas 1 foot or less.
.WED...E winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft.
.WED NIGHT THROUGH THU NIGHT...S winds 10 to 15 kt with gusts up
to 20 kt. Seas 2 to 4 ft.
.FRI THROUGH SAT NIGHT...SW winds 10 to 15 kt with gusts up to
25 kt. Seas 2 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.

$$

ANZ235-241200-
Rhode Island Sound-
708 PM EDT Mon May 23 2022

.TONIGHT...E winds 5 to 10 kt, becoming NE after midnight. Seas
2 to 3 ft. A slight chance of sprinkles after midnight.
.TUE...NE winds around 10 kt. Gusts up to 20 kt in the morning.
Seas 2 to 3 ft.
.TUE NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft.
.WED...E winds around 5 kt, becoming SE in the afternoon. Seas
2 to 3 ft.
.WED NIGHT AND THU...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.THU NIGHT...S winds 10 to 15 kt. Seas 4 to 5 ft.
.FRI THROUGH SAT...SW winds 15 to 20 kt. Seas 4 to 6 ft. A chance
of showers.
.SAT NIGHT...SW winds 5 to 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.

$$

ANZ237-241200-
Block Island Sound-
708 PM EDT Mon May 23 2022

.TONIGHT...SE winds 5 to 10 kt, becoming NE after midnight. Seas
around 2 ft. A slight chance of sprinkles after midnight.
.TUE...NE winds 5 to 10 kt with gusts up to 20 kt, becoming E in
the afternoon. Seas 2 to 3 ft.
.TUE NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft.
.WED...E winds 5 to 10 kt. Seas 2 to 3 ft.
.WED NIGHT AND THU...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.THU NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...S winds 15 to 20 kt. Seas 4 to 5 ft.
.FRI NIGHT AND SAT...SW winds 15 to 20 kt, diminishing to 10 to
15 kt. Seas 3 to 5 ft. A chance of showers.
.SAT NIGHT...SW winds 5 to 10 kt. Seas 2 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.

$$

ANZ230-241200-
Boston Harbor-
708 PM EDT Mon May 23 2022

.TONIGHT...E winds around 5 kt, becoming N after midnight. Waves
1 foot or less.
.TUE...NE winds around 10 kt. Waves around 2 ft.
.TUE NIGHT...SE winds 5 to 10 kt, becoming S after midnight.
Waves 1 foot or less.
.WED...SE winds 5 to 10 kt. Waves around 2 ft.
.WED NIGHT THROUGH THU NIGHT...S winds 10 to 15 kt with gusts up
to 25 kt. Waves 2 to 3 ft.
.FRI AND FRI NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt.
Waves 2 to 3 ft.
.SAT AND SAT NIGHT...W winds 5 to 10 kt. Waves 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.

$$

ANZ236-241200-
Narragansett Bay-
708 PM EDT Mon May 23 2022

.TONIGHT...SE winds 5 to 10 kt, becoming NE after midnight. Waves
around 2 ft. A slight chance of sprinkles after midnight.
.TUE...NE winds 5 to 10 kt, becoming E in the afternoon. Waves
around 2 ft.
.TUE NIGHT...SE winds 5 to 10 kt, becoming NE after midnight.
Waves around 2 ft.
.WED...E winds around 5 kt, becoming S in the afternoon. Waves
around 2 ft.
.WED NIGHT...S winds 5 to 10 kt. Waves around 2 ft.
.THU AND THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt.
Waves 2 to 4 ft.
.FRI...S winds 10 to 15 kt with gusts up to 20 kt. Waves 3 to
4 ft.
.FRI NIGHT AND SAT...SW winds 10 to 15 kt with gusts up to 20 kt.
Waves 3 to 4 ft. A chance of showers.
.SAT NIGHT...W winds 5 to 10 kt. Waves 2 to 3 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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