917
FZUS51 KBOX 192005
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
404 PM EDT Sat Oct 19 2024

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

ANZ200-200900-
404 PM EDT Sat Oct 19 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
Large area of high pres builds over the waters today and remains in
place through the middle of next week. Generally tranquil boating
weather conditions are expected over the next several days, with
diminishing seas and light winds.

$$

ANZ250-200900-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
404 PM EDT Sat Oct 19 2024

.TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 10 seconds and SW 2 ft at 3 seconds.
.SUN...SW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft
at 9 seconds and SW 2 ft at 3 seconds.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail:
SE 3 ft at 9 seconds and SW 2 ft at 3 seconds.
.MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds and SW 2 ft at 3 seconds.
.MON NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at
3 seconds.
.TUE AND TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: SE 2 ft at 8 seconds and N 1 foot at 3 seconds.
.WED AND WED NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt. Seas
2 to 4 ft.
.THU AND THU NIGHT...W winds 10 to 15 kt, becoming NW. Gusts up
to 20 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.

$$

ANZ251-200900-
Massachusetts Bay and Ipswich Bay-
404 PM EDT Sat Oct 19 2024

.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 9 seconds.
.SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 9 seconds and SW 1 foot at 3 seconds.
.SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
E 2 ft at 9 seconds and SW 1 foot at 3 seconds.
.MON...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 8 seconds and SW 1 foot at 2 seconds.
.MON NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft in the evening, then 1 foot or less. Wave Detail: E
2 ft at 8 seconds and W 1 foot at 2 seconds, becoming W 1 foot at
2 seconds and E 1 foot at 8 seconds.
.TUE AND TUE NIGHT...S winds around 5 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 8 seconds and N 1 foot at 2 seconds.
.WED AND WED NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt. Seas
2 to 3 ft.
.THU AND THU NIGHT...NW winds 10 to 15 kt. Gusts up 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.

$$

ANZ231-200900-
Cape Cod Bay-
404 PM EDT Sat Oct 19 2024

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
2 ft at 10 seconds and SW 1 foot at 2 seconds.
.SUN...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 9 seconds and SW 1 foot at 2 seconds.
.SUN NIGHT...SW winds around 10 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 9 seconds and SW 1 foot at 2 seconds.
.MON...SW winds 5 to 10 kt. Seas around 2 ft in the morning, then
1 foot or less. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot
at 2 seconds, becoming SW 1 foot at 2 seconds and SE 1 foot at
8 seconds.
.MON NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas
1 foot or less. Wave Detail: W 1 foot at 2 seconds and SE 1 foot
at 8 seconds.
.TUE AND TUE NIGHT...S winds around 5 kt. Seas 1 foot or less.
Wave Detail: N 1 foot at 3 seconds and SE 1 foot at 8 seconds.
.WED AND WED NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.THU AND THU NIGHT...W winds 10 to 15 kt, becoming NW. Gusts up
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.

$$

ANZ254-200900-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
404 PM EDT Sat Oct 19 2024

.TONIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 10 seconds.
.SUN...SW winds around 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 9 seconds and SW 1 foot at 2 seconds.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 9 seconds and SW 2 ft at 3 seconds.
.MON...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds and W 2 ft at 3 seconds.
.MON NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas
2 to 3 ft. Wave Detail: W 2 ft at 4 seconds and SE 2 ft at
8 seconds.
.TUE AND TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: SE 2 ft at 8 seconds and NW 1 foot at 3 seconds.
.WED AND WED NIGHT...S winds 5 to 10 kt, increasing to 10 to
15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
.THU...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. A chance of showers.
.THU NIGHT...NW winds 10 to 15 kt with gusts up 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.

$$

ANZ255-200900-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
404 PM EDT Sat Oct 19 2024

.TONIGHT...SW winds around 5 kt, increasing to 5 to 10 kt after
midnight. Seas 2 to 4 ft. Wave Detail: E 4 ft at 9 seconds.
.SUN...SW winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft
at 9 seconds and W 2 ft at 3 seconds.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E
4 ft at 9 seconds and SW 2 ft at 4 seconds.
.MON...W winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds and SW 2 ft at 4 seconds.
.MON NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas
2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and SE 2 ft at
8 seconds.
.TUE AND TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: SE 2 ft at 8 seconds and NE 1 foot at 2 seconds.
.WED AND WED NIGHT...S winds 5 to 10 kt, increasing to 10 to
15 kt. Seas 2 to 3 ft.
.THU...W winds 10 to 15 kt. Seas 3 to 5 ft. A chance of showers.
.THU NIGHT...NW 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.

$$

ANZ256-200900-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
404 PM EDT Sat Oct 19 2024

.TONIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 10 seconds.
.SUN...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 9 seconds and W 2 ft at 3 seconds.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E
4 ft at 9 seconds and SW 2 ft at 4 seconds.
.MON...W winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds and SW 2 ft at 4 seconds.
.MON NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and SW 2 ft at
4 seconds.
.TUE AND TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 8 seconds and NE 1 foot at 2 seconds.
.WED...S winds 5 to 10 kt. Seas around 2 ft.
.WED NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft.
.THU AND THU NIGHT...W winds 10 to 15 kt, becoming NW 15 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.

$$

ANZ232-200900-
Nantucket Sound-
404 PM EDT Sat Oct 19 2024

.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 9 seconds and SW 1 foot at 2 seconds.
.SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 3 seconds and E 2 ft at 9 seconds.
.SUN NIGHT...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail:
SW 2 ft at 3 seconds and E 2 ft at 9 seconds.
.MON...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 3 seconds and E 1 foot at 8 seconds.
.MON NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft in the evening, then 1 foot or less. Wave Detail: W
2 ft at 3 seconds and SE 1 foot at 8 seconds, becoming W 1 foot
at 3 seconds and SE 1 foot at 8 seconds.
.TUE AND TUE NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: NE 1 foot at 2 seconds and SW 1 foot at 4 seconds.
.WED AND WED NIGHT...S winds 5 to 10 kt, increasing to 10 to
15 kt. Seas 1 foot or less, then around 2 ft.
.THU AND THU NIGHT...W winds 10 to 15 kt, becoming NW 15 to
20 kt. Seas 2 to 3 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.

$$

ANZ233-200900-
Vineyard Sound-
404 PM EDT Sat Oct 19 2024

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 10 seconds and SW 1 foot at 2 seconds.
.SUN...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds
and SW 1 foot at 3 seconds.
.SUN NIGHT...SW winds around 10 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 4 seconds and SE 1 foot at 9 seconds.
.MON...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft
at 4 seconds and SE 1 foot at 8 seconds.
.MON NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft in the evening, then 1 foot or less. Wave Detail: SW
2 ft at 4 seconds and SE 1 foot at 9 seconds, becoming SW 1 foot
at 4 seconds and SE 1 foot at 9 seconds.
.TUE AND TUE NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: NE 1 foot at 2 seconds and SW 1 foot at 4 seconds.
.WED AND WED NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt.
Seas 1 foot or less, then around 2 ft.
.THU AND THU NIGHT...W winds 10 to 15 kt, becoming NW. Seas 2 to
3 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.

$$

ANZ234-200900-
Buzzards Bay-
404 PM EDT Sat Oct 19 2024

.TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail:
SW 1 foot at 2 seconds and E 1 foot at 10 seconds.
.SUN...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 9 seconds and SW 1 foot at 3 seconds.
.SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 9 seconds and SW 1 foot at 4 seconds.
.MON...SW winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft
in the afternoon. Wave Detail: SW 1 foot at 4 seconds and SE
1 foot at 8 seconds, becoming SW 1 foot at 4 seconds and SE
1 foot at 9 seconds.
.MON NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft in the evening, then 1 foot or less. Wave Detail: SW
1 foot at 4 seconds and SE 1 foot at 9 seconds, becoming SW
1 foot at 4 seconds and SE 1 foot at 8 seconds.
.TUE AND TUE NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: NE 1 foot at 2 seconds and SW 1 foot at 4 seconds.
.WED AND WED NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt.
Seas 1 foot or less, then around 2 ft.
.THU...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. A chance of showers.
.THU NIGHT...NW winds 10 to 15 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.

$$

ANZ235-200900-
Rhode Island Sound-
404 PM EDT Sat Oct 19 2024

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 10 seconds and SW 1 foot at 2 seconds.
.SUN...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 10 seconds and SW 2 ft at 3 seconds.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail:
SE 3 ft at 9 seconds and SW 2 ft at 4 seconds.
.MON...W winds around 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 4 seconds and SE 2 ft at 8 seconds.
.MON NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at
9 seconds.
.TUE AND TUE NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 8 seconds and NE 1 foot at 2 seconds.
.WED AND WED NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt.
Seas 2 to 3 ft.
.THU...W winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers.
.THU NIGHT...NW winds 10 to 15 kt. Seas around 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.

$$

ANZ237-200900-
Block Island Sound-
404 PM EDT Sat Oct 19 2024

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
2 ft at 10 seconds.
.SUN...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 10 seconds.
.SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 9 seconds and SW 1 foot at 3 seconds.
.MON...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft
at 9 seconds and SW 1 foot at 4 seconds.
.MON NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 9 seconds and SW 1 foot at
4 seconds.
.TUE AND TUE NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 8 seconds and SW 1 foot at 4 seconds.
.WED THROUGH THU NIGHT...NW winds 10 to 15 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.

$$

ANZ230-200900-
Boston Harbor-
404 PM EDT Sat Oct 19 2024

.TONIGHT...SW winds 5 to 10 kt. Waves 1 foot or less.
.SUN...SW winds 5 to 10 kt. Waves 1 foot or less.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less.
.MON...W winds 5 to 10 kt. Waves 1 foot or less.
.MON NIGHT...W winds 5 to 10 kt, becoming N after midnight. Waves
1 foot or less.
.TUE AND TUE NIGHT...S winds 5 to 10 kt. Waves 1 foot or less.
.WED THROUGH THU NIGHT...NW winds 10 to 15 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.

$$

ANZ236-200900-
Narragansett Bay-
404 PM EDT Sat Oct 19 2024

.TONIGHT...SW winds 5 to 10 kt. Waves 1 foot or less.
.SUN...SW winds 5 to 10 kt. Waves around 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves around 2 ft.
.MON...W winds 5 to 10 kt. Waves around 2 ft.
.MON NIGHT...W winds 5 to 10 kt, becoming N after midnight. Waves
around 2 ft.
.TUE AND TUE NIGHT...S winds around 5 kt. Waves around 2 ft.
.WED THROUGH THU NIGHT...NW 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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