Coastal Waters Forecast
Issued by NWS Boston, MA

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FZUS51 KBOX 281105
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
705 AM EDT Tue May 28 2024

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

ANZ200-290000-
705 AM EDT Tue May 28 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
Warm front lifts into Maine early today, while a cold front
approaches from the west. The cold front slowly slides into the
waters late today into early Wed. Low pressure crosses the waters
Wednesday into Thursday then high pres builds in late in the week.

$$

ANZ250-290000-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
705 AM EDT Tue May 28 2024

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

.TODAY...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: E 4 ft at 6 seconds and S 1 foot at 3 seconds.
Patchy fog. A chance of showers this morning. Vsby 1 NM or less,
increasing to 1 to 3 NM this afternoon.
.TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds and SW
2 ft at 3 seconds.
.WED...W winds 5 to 10 kt, becoming S in the afternoon. Seas 3 to
4 ft. Wave Detail: SE 4 ft at 8 seconds and W 1 foot at
3 seconds.
.WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 2 to 4 ft. Wave Detail: SE 4 ft at 8 seconds. A chance of
showers after midnight.
.THU...NE winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds and N 1 foot at 3 seconds. A chance of showers.
.THU NIGHT...NE winds around 10 kt, becoming NW after midnight.
Seas 2 to 3 ft. Wave Detail: N 2 ft at 3 seconds and SE 2 ft at
8 seconds. A chance of showers.
.FRI THROUGH SAT NIGHT...SW 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.

$$

ANZ251-290000-
Massachusetts Bay and Ipswich Bay-
705 AM EDT Tue May 28 2024

.TODAY...S winds 5 to 10 kt. Gusts up to 20 kt this afternoon.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and E 1 foot at
7 seconds. Patchy fog this morning. A slight chance of showers
this morning with vsby 1 NM or less.
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds and SE 1 foot at 3 seconds.
.WED...W winds 5 to 10 kt, becoming SE in the afternoon. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and W 1 foot at
2 seconds.
.WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and S 1 foot at
7 seconds. A chance of showers.
.THU...NE winds around 10 kt. Seas around 2 ft. Wave Detail: E
2 ft at 8 seconds and N 1 foot at 3 seconds. A chance of showers.
.THU NIGHT...NE winds 5 to 10 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and NE 1 foot
at 3 seconds. A chance of showers.
.FRI THROUGH SAT NIGHT...SW winds 10 to 15 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.

$$

ANZ231-290000-
Cape Cod Bay-
705 AM EDT Tue May 28 2024

.TODAY...S winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: E 2 ft at 7 seconds and S 1 foot at 3 seconds.
Patchy fog this morning. A chance of showers this morning with
vsby 1 NM or less.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave
Detail: SE 2 ft at 7 seconds and SW 1 foot at 3 seconds.
.WED...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 8 seconds and SW 1 foot at 2 seconds.
.WED NIGHT...SW winds around 5 kt, becoming W after midnight.
Seas around 2 ft in the evening, then 1 foot or less. Wave
Detail: E 2 ft at 8 seconds and SW 1 foot at 2 seconds, becoming
W 1 foot at 2 seconds and S 1 foot at 7 seconds. A chance of
showers after midnight.
.THU...N winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft
in the afternoon. Wave Detail: N 1 foot at 2 seconds and S 1 foot
at 7 seconds, becoming N 1 foot at 3 seconds and S 1 foot at
7 seconds. A chance of showers.
.THU NIGHT...NE winds 5 to 10 kt, becoming NW after midnight.
Seas 1 foot or less. Wave Detail: N 1 foot at 3 seconds and E
1 foot at 7 seconds. A chance of showers.
.FRI...N winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
.FRI NIGHT THROUGH SAT NIGHT...SW 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.

$$

ANZ254-290000-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
705 AM EDT Tue May 28 2024

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

.TODAY...S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: SE 4 ft at 6 seconds and SW 1 foot at
3 seconds. Patchy fog. A chance of showers with isolated tstms
this morning. Vsby 1 NM or less.
.TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 8 seconds and SW
1 foot at 4 seconds. Patchy fog. Vsby 1 to 3 NM.
.WED...SW winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: SE 4 ft
at 8 seconds and S 3 ft at 7 seconds.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: SE
4 ft at 8 seconds and S 2 ft at 8 seconds.
.THU AND THU NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 8 seconds and S 2 ft at 8 seconds. A chance of
showers.
.FRI THROUGH SAT NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft.
Wave Detail: E 3 ft at 10 seconds and N 2 ft at 4 seconds.

Winds and seas higher in and near tstms.

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.

$$

ANZ255-290000-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
705 AM EDT Tue May 28 2024

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

.TODAY...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: S 4 ft at 6 seconds and SW 1 foot at
3 seconds. Patchy dense fog this morning, then patchy fog this
afternoon. Showers likely with isolated tstms this morning. Vsby
1 NM or less.
.TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 7 seconds and SW
1 foot at 4 seconds. Patchy fog. Vsby 1 to 3 NM.
.WED...SW winds around 10 kt. Seas 3 to 5 ft. Wave Detail: SW
3 ft at 6 seconds and SE 3 ft at 8 seconds.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: S
3 ft at 8 seconds and SE 3 ft at 8 seconds.
.THU...NW winds 5 to 10 kt, becoming N in the afternoon. Seas
2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at
8 seconds. A chance of showers.
.THU NIGHT...N winds around 10 kt. Seas 2 to 3 ft. Wave Detail:
SE 2 ft at 7 seconds and S 2 ft at 7 seconds.
.FRI THROUGH SAT NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft.

Winds and seas higher in and near tstms.

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.

$$

ANZ256-290000-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
705 AM EDT Tue May 28 2024

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

.TODAY...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: SW 4 ft at 5 seconds. Patchy fog. A chance of
showers this morning. Vsby 1 NM or less, increasing to 1 to 3 NM
this afternoon.
.TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 4 to 5 ft. Wave Detail: SW 4 ft at 6 seconds and SE
3 ft at 7 seconds.
.WED...SW winds 5 to 10 kt. Seas around 4 ft. Wave Detail: S 4 ft
at 7 seconds.
.WED NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: S
3 ft at 8 seconds and SE 3 ft at 8 seconds. A chance of showers
after midnight.
.THU...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 7 seconds and SE 2 ft at 8 seconds. A chance of showers.
.THU NIGHT...N winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 7 seconds and SE 2 ft at 8 seconds. A chance of showers.
.FRI...N winds around 10 kt. Seas 2 to 3 ft. A chance of showers.
.FRI NIGHT THROUGH SAT NIGHT...SW 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.

$$

ANZ232-290000-
Nantucket Sound-
705 AM EDT Tue May 28 2024

.TODAY...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 6 seconds.
Patchy fog. A slight chance of showers with isolated tstms this
morning. Vsby 1 NM or less.
.TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE
2 ft at 7 seconds. Patchy fog. Vsby 1 to 3 NM.
.WED...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 8 seconds and SW 1 foot at 3 seconds.
.WED NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW
1 foot at 3 seconds and E 1 foot at 8 seconds. A chance of
showers after midnight.
.THU AND THU NIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: N 1 foot at 2 seconds and S 1 foot at 7 seconds. A chance
of showers.
.FRI THROUGH SAT NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
Wave Detail: N 1 foot at 3 seconds and E 1 foot at 7 seconds.

Winds and seas higher in and near tstms.

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.

$$

ANZ233-290000-
Vineyard Sound-
705 AM EDT Tue May 28 2024

.TODAY...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: S 2 ft at 5 seconds. Patchy fog. A chance of
showers this morning. Vsby 1 NM or less, increasing to 1 to 3 NM
this afternoon.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave
Detail: SW 3 ft at 5 seconds and SE 2 ft at 7 seconds.
.WED...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 5 seconds and SE 2 ft at 8 seconds.
.WED NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at
8 seconds. A chance of showers after midnight.
.THU...N winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: N
1 foot at 3 seconds and S 1 foot at 7 seconds. A chance of
showers.
.THU NIGHT...N winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: N 1 foot at 3 seconds and S 1 foot at 7 seconds. A chance
of showers.
.FRI...N winds around 10 kt. Seas 1 foot or less. A chance of
showers.
.FRI NIGHT THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas 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.

$$

ANZ234-290000-
Buzzards Bay-
705 AM EDT Tue May 28 2024

.TODAY...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: S 2 ft at 5 seconds and E 1 foot at 6 seconds.
Patchy fog. A chance of showers this morning. Vsby 1 NM or less,
increasing to 1 to 3 NM this afternoon.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave
Detail: S 2 ft at 6 seconds.
.WED...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 8 seconds and SW 1 foot at 5 seconds.
.WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas around 2 ft in the evening, then 1 foot or less. Wave
Detail: S 2 ft at 7 seconds and SE 2 ft at 8 seconds, becoming SW
1 foot at 4 seconds and S 1 foot at 7 seconds. A chance of
showers after midnight.
.THU...N winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: N
1 foot at 3 seconds and S 1 foot at 7 seconds. A chance of
showers.
.THU NIGHT...N winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: N 1 foot at 3 seconds and S 1 foot at 7 seconds. A chance
of showers.
.FRI...N winds around 10 kt. Seas 1 foot or less. A chance of
showers.
.FRI NIGHT THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas 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.

$$

ANZ235-290000-
Rhode Island Sound-
705 AM EDT Tue May 28 2024

.TODAY...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: S 4 ft at 6 seconds and SW 1 foot at
3 seconds. Patchy fog. A chance of showers this morning. Vsby
1 NM or less, increasing to 1 to 3 NM this afternoon.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming
W 5 to 10 kt after midnight. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 7 seconds and SW 1 foot at 4 seconds.
.WED...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft
at 7 seconds.
.WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SE 2 ft at
8 seconds. A chance of showers after midnight.
.THU...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft
at 7 seconds and SE 2 ft at 8 seconds. A chance of showers.
.THU NIGHT...N winds around 10 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 7 seconds and SE 2 ft at 8 seconds. A chance of
showers.
.FRI...N winds around 10 kt. Seas around 2 ft. A chance of
showers.
.FRI NIGHT THROUGH SAT NIGHT...SW 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.

$$

ANZ237-290000-
Block Island Sound-
705 AM EDT Tue May 28 2024

.TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: S
3 ft at 6 seconds and SW 1 foot at 3 seconds. Patchy fog. A
chance of showers this morning with vsby 1 NM or less.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming
W 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: SE 3 ft
at 7 seconds and W 1 foot at 3 seconds.
.WED...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 7 seconds and SE 3 ft at 8 seconds.
.WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SE 3 ft at
8 seconds. A chance of showers after midnight.
.THU...N winds 5 to 10 kt, becoming E in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at
8 seconds. A chance of showers.
.THU NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 8 seconds and S 2 ft at 8 seconds. A chance of
showers.
.FRI...NW winds around 10 kt. Seas around 2 ft. A chance of
showers.
.FRI NIGHT THROUGH SAT NIGHT...SW 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.

$$

ANZ230-290000-
Boston Harbor-
705 AM EDT Tue May 28 2024

.TODAY...SW winds 5 to 10 kt. Waves around 2 ft. Patchy fog this
morning with vsby 1 NM or less.
.TONIGHT...W winds 5 to 10 kt. Waves around 2 ft.
.WED...W winds 5 to 10 kt, becoming SE in the afternoon. Waves
around 2 ft.
.WED NIGHT...SW winds around 5 kt, becoming N after midnight.
Waves around 2 ft in the evening, then 1 foot or less. A chance
of showers.
.THU...NE winds 5 to 10 kt. Waves 1 foot or less. A chance of
showers.
.THU NIGHT...NE winds 5 to 10 kt, becoming NW after midnight.
Waves 1 foot or less. A chance of showers.
.FRI THROUGH SAT NIGHT...SW winds 5 to 10 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.

$$

ANZ236-290000-
Narragansett Bay-
705 AM EDT Tue May 28 2024

.TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt this afternoon. Waves around 2 ft. Patchy fog
this morning. A chance of showers this morning with vsby 1 NM or
less.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming
W 5 to 10 kt after midnight. Waves around 2 ft.
.WED...SW winds 5 to 10 kt. Waves around 2 ft.
.WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Waves 2 to 3 ft. A chance of showers.
.THU...NE winds 5 to 10 kt. Waves around 2 ft. A chance of
showers.
.THU NIGHT...NE winds 5 to 10 kt, becoming NW after midnight.
Waves around 2 ft. A chance of showers.
.FRI THROUGH SAT NIGHT...SW winds 5 to 10 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.

$$

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