Coastal Waters Forecast
Issued by NWS Boston, MA

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FZUS51 KBOX 132005
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
404 PM EDT Fri Sep 13 2024

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

ANZ200-140900-
404 PM EDT Fri Sep 13 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pressure will remain over the waters through at least the
middle portion of next week bringing dry weather. Light southerly
winds shift to the NE-ENE for Saturday at 5-15 knots. There is a low
chance that a fog bank may develop off the eastern MA coast Saturday
night. Calm seas and winds under 25 knots.

$$

ANZ250-140900-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
404 PM EDT Fri Sep 13 2024

.TONIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft. Wave Detail: E 2 ft at 8 seconds and SE 1 foot at
3 seconds.
.SAT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE
2 ft at 3 seconds and SE 2 ft at 7 seconds.
.SAT NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
NE 2 ft at 4 seconds and SE 2 ft at 9 seconds.
.SUN...NE winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 8 seconds and NE 1 foot at
4 seconds.
.SUN NIGHT AND MON...S winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 8 seconds and NE 1 foot at 4 seconds.
.MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 7 seconds and S 1 foot at 3 seconds.
.TUE THROUGH WED NIGHT...S winds 5 to 10 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.

$$

ANZ251-140900-
Massachusetts Bay and Ipswich Bay-
404 PM EDT Fri Sep 13 2024

.TONIGHT...S winds 5 to 10 kt, becoming NW after midnight. Seas
around 2 ft. Wave Detail: SE 1 foot at 3 seconds and E 1 foot at
8 seconds.
.SAT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
1 foot at 2 seconds and SE 1 foot at 4 seconds.
.SAT NIGHT...E winds 5 to 10 kt, becoming NE after midnight. Seas
around 2 ft. Wave Detail: NE 1 foot at 4 seconds and S 1 foot at
6 seconds.
.SUN...NE winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: NE 1 foot at 4 seconds and E 1 foot at
9 seconds.
.SUN NIGHT AND MON...S winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 8 seconds and S 1 foot at 2 seconds.
.MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 3 seconds and E 2 ft at 8 seconds.
.TUE THROUGH WED NIGHT...S winds 5 to 10 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.

$$

ANZ231-140900-
Cape Cod Bay-
404 PM EDT Fri Sep 13 2024

.TONIGHT...SW winds 5 to 10 kt, diminishing to around 5 kt after
midnight. Seas around 2 ft. Wave Detail: S 1 foot at 3 seconds
and E 1 foot at 8 seconds.
.SAT...NW winds around 5 kt, becoming NE in the afternoon. Seas
around 2 ft. Wave Detail: SW 1 foot at 2 seconds and E 1 foot at
2 seconds.
.SAT NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
NE 1 foot at 3 seconds and S 1 foot at 6 seconds.
.SUN...E winds around 5 kt. Seas around 2 ft in the morning, then
1 foot or less. Wave Detail: N 1 foot at 3 seconds and S 1 foot
at 6 seconds, becoming NE 1 foot at 3 seconds and S 1 foot at
7 seconds.
.SUN NIGHT AND MON...S winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: S 1 foot at 2 seconds and E 1 foot at 3 seconds.
.MON NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: S 1 foot at 2 seconds and E 1 foot at 8 seconds.
.TUE THROUGH WED NIGHT...S winds 5 to 10 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.

$$

ANZ254-140900-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
404 PM EDT Fri Sep 13 2024

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds and SW 1 foot at 2 seconds. Patchy fog. Vsby
1 NM or less.
.SAT...NW winds around 5 kt, becoming NE in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot at
2 seconds.
.SAT NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
NE 2 ft at 3 seconds and SE 2 ft at 9 seconds.
.SUN...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft
at 4 seconds and SE 2 ft at 7 seconds.
.SUN NIGHT THROUGH MON NIGHT...SW winds 5 to 10 kt. Seas around
2 ft. Wave Detail: E 2 ft at 8 seconds and S 2 ft at 8 seconds.
.TUE THROUGH WED NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. Wave
Detail: S 3 ft at 7 seconds and SE 3 ft at 8 seconds.

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.

$$

ANZ255-140900-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
404 PM EDT Fri Sep 13 2024

.TONIGHT...SW winds around 5 kt. Seas around 2 ft. Wave Detail: S
2 ft at 7 seconds and SE 2 ft at 8 seconds. Patchy fog. Vsby 1 NM
or less.
.SAT...NW winds around 5 kt, becoming NE in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at
8 seconds. Patchy fog in the morning with vsby 1 NM or less.
.SAT NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 7 seconds and NE 1 foot at 3 seconds.
.SUN...E winds around 10 kt. Seas around 2 ft. Wave Detail: NE
2 ft at 3 seconds and SE 2 ft at 8 seconds.
.SUN NIGHT AND MON...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 8 seconds and NE 1 foot at 4 seconds.
.MON NIGHT...S winds around 5 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds and S 1 foot at 9 seconds.
.TUE THROUGH WED NIGHT...SE winds 5 to 10 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.

$$

ANZ256-140900-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
404 PM EDT Fri Sep 13 2024

.TONIGHT...SW winds around 5 kt. Seas around 2 ft. Wave Detail: S
2 ft at 7 seconds and E 2 ft at 8 seconds.
.SAT...NW winds around 5 kt, becoming NE in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at
8 seconds.
.SAT NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 7 seconds and E 1 foot at 2 seconds.
.SUN...E winds around 10 kt. Seas around 2 ft. Wave Detail: E
2 ft at 3 seconds and E 2 ft at 8 seconds.
.SUN NIGHT THROUGH MON NIGHT...SE winds 5 to 10 kt. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 9 seconds.
.TUE THROUGH WED NIGHT...SE winds 5 to 10 kt. Seas 2 to 4 ft.
Wave Detail: SE 4 ft at 8 seconds and S 4 ft at 9 seconds.

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.

$$

ANZ232-140900-
Nantucket Sound-
404 PM EDT Fri Sep 13 2024

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
1 foot at 2 seconds and SE 1 foot at 7 seconds.
.SAT...NW winds around 5 kt, becoming NE in the afternoon. Seas
around 2 ft. Wave Detail: SW 1 foot at 2 seconds and NE 1 foot at
2 seconds.
.SAT NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
NE 1 foot at 3 seconds and S 1 foot at 6 seconds.
.SUN...E winds 5 to 10 kt. Seas around 2 ft in the morning, then
1 foot or less. Wave Detail: E 1 foot at 3 seconds and S 1 foot
at 6 seconds, becoming E 1 foot at 3 seconds and S 1 foot at
7 seconds.
.SUN NIGHT AND MON...S winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: S 1 foot at 2 seconds and E 1 foot at 4 seconds.
.MON NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: S 1 foot at 2 seconds and E 1 foot at 8 seconds.
.TUE THROUGH WED NIGHT...SE winds 5 to 10 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.

$$

ANZ233-140900-
Vineyard Sound-
404 PM EDT Fri Sep 13 2024

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
1 foot at 2 seconds and S 1 foot at 7 seconds.
.SAT...NW winds around 5 kt, becoming NE in the afternoon. Seas
around 2 ft. Wave Detail: NE 1 foot at 2 seconds and S 1 foot at
7 seconds.
.SAT NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
NE 1 foot at 2 seconds and SE 1 foot at 7 seconds.
.SUN...E winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: NE
1 foot at 2 seconds and SE 1 foot at 7 seconds.
.SUN NIGHT THROUGH MON NIGHT...SW winds 5 to 10 kt. Seas 1 foot
or less. Wave Detail: S 1 foot at 2 seconds and E 1 foot at
3 seconds.
.TUE THROUGH WED NIGHT...SE winds 5 to 10 kt. Seas around 2 ft.
Wave Detail: SE 2 ft at 8 seconds and S 2 ft at 9 seconds.

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.

$$

ANZ234-140900-
Buzzards Bay-
404 PM EDT Fri Sep 13 2024

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
1 foot at 2 seconds and SE 1 foot at 7 seconds.
.SAT...NW winds around 5 kt, becoming NE in the afternoon. Seas
around 2 ft. Wave Detail: SE 1 foot at 7 seconds.
.SAT NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
E 1 foot at 2 seconds and SE 1 foot at 7 seconds.
.SUN...NE winds 5 to 10 kt, becoming E in the afternoon. Seas
around 2 ft in the morning, then 1 foot or less. Wave Detail: NE
1 foot at 2 seconds and SE 1 foot at 7 seconds, becoming E 1 foot
at 2 seconds and S 1 foot at 7 seconds.
.SUN NIGHT THROUGH MON NIGHT...SW winds 5 to 10 kt. Seas 1 foot
or less. Wave Detail: S 1 foot at 2 seconds and E 1 foot at
2 seconds.
.TUE THROUGH WED NIGHT...SE winds 5 to 10 kt. Seas around 2 ft.
Wave Detail: SE 2 ft at 8 seconds and S 2 ft at 9 seconds.

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.

$$

ANZ235-140900-
Rhode Island Sound-
404 PM EDT Fri Sep 13 2024

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 7 seconds and SW 1 foot at 2 seconds.
.SAT...NW winds around 5 kt, becoming E in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and SE 1 foot at
8 seconds.
.SAT NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 7 seconds and E 1 foot at 2 seconds.
.SUN...NE winds 5 to 10 kt, becoming E in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and NE 1 foot at
3 seconds.
.SUN NIGHT AND MON...SE winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 8 seconds and E 1 foot at 3 seconds.
.MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 9 seconds.
.TUE THROUGH WED NIGHT...SE winds 5 to 10 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.

$$

ANZ237-140900-
Block Island Sound-
404 PM EDT Fri Sep 13 2024

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 7 seconds and SW 1 foot at 2 seconds.
.SAT...NW winds around 5 kt, becoming E in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and SE 1 foot at
8 seconds.
.SAT NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 7 seconds.
.SUN...NE winds 5 to 10 kt, becoming E in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and NE 1 foot at
3 seconds.
.SUN NIGHT AND MON...SE winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 8 seconds and E 1 foot at 3 seconds.
.MON NIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 9 seconds.
.TUE THROUGH WED NIGHT...E winds 5 to 10 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.

$$

ANZ230-140900-
Boston Harbor-
404 PM EDT Fri Sep 13 2024

.TONIGHT...S winds 5 to 10 kt, becoming W after midnight. Waves
1 foot or less.
.SAT...N winds around 5 kt, becoming NE in the afternoon. Waves
1 foot or less.
.SAT NIGHT...E winds 5 to 10 kt. Waves 1 foot or less.
.SUN...E winds 5 to 10 kt. Waves 1 foot or less.
.SUN NIGHT AND MON...S winds 5 to 10 kt. Waves 1 foot or less.
.MON NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less.
.TUE THROUGH WED NIGHT...S winds 5 to 10 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.

$$

ANZ236-140900-
Narragansett Bay-
404 PM EDT Fri Sep 13 2024

.TONIGHT...SW winds 5 to 10 kt. Waves 1 foot or less.
.SAT...N winds around 5 kt, becoming E in the afternoon. Waves
1 foot or less.
.SAT NIGHT...NE winds around 5 kt. Waves 1 foot or less.
.SUN...NE winds around 5 kt, becoming SE in the afternoon. Waves
around 2 ft.
.SUN NIGHT AND MON...S winds 5 to 10 kt. Waves around 2 ft.
.MON NIGHT...SW winds 5 to 10 kt. Waves around 2 ft.
.TUE THROUGH WED NIGHT...SE winds 5 to 10 kt. Waves 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.

$$

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