236
FZUS51 KBOX 230804
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
403 AM EDT Thu May 23 2024

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

ANZ200-232100-
403 AM EDT Thu May 23 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
A cold front slides into southern New England late today and across
the waters by late tonight into early Fri. The front will bring
showers and thunderstorms. Hit or miss showers and storms are
possible through the weekend with a front nearby. A frontal system
lifts toward the waters early next week.

$$

ANZ250-232100-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
403 AM EDT Thu May 23 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 4 seconds and E 2 ft at 8 seconds.
A slight chance of showers. Patchy fog this morning.
.TONIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW
2 ft at 4 seconds and E 1 foot at 8 seconds. Patchy fog after
midnight with vsby 1 to 3 NM.
.FRI...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 2 ft
at 3 seconds and E 1 foot at 8 seconds.
.FRI NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and
SE 1 foot at 9 seconds.
.SAT AND SAT NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 3 seconds and E 1 foot at 9 seconds.
.SUN AND SUN NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 4 seconds and SE 1 foot at 9 seconds.
.MON...SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of rain.
.MON NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Rain likely.

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.

$$

ANZ251-232100-
Massachusetts Bay and Ipswich Bay-
403 AM EDT Thu May 23 2024

.TODAY...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 3 seconds and E 2 ft at 7 seconds. A slight chance of
showers.
.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 3 seconds and E 1 foot at 7 seconds.
.FRI...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W
1 foot at 2 seconds and E 1 foot at 7 seconds.
.FRI NIGHT...W winds around 10 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: W 1 foot at 3 seconds and E 1 foot
at 9 seconds.
.SAT...N winds around 5 kt, becoming SE 10 to 15 kt in the
afternoon. Seas 1 foot or less, then around 2 ft in the
afternoon. Wave Detail: NW 1 foot at 2 seconds and E 1 foot at
8 seconds, becoming SE 1 foot at 2 seconds and E 1 foot at
7 seconds.
.SAT NIGHT...S winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 3 seconds and
E 1 foot at 7 seconds.
.SUN AND SUN NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.MON...SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of rain.
.MON NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. Rain likely.

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.

$$

ANZ231-232100-
Cape Cod Bay-
403 AM EDT Thu May 23 2024

.TODAY...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW
1 foot at 3 seconds and E 1 foot at 8 seconds. A chance of
showers.
.TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail:
SW 1 foot at 3 seconds and E 1 foot at 8 seconds. A chance of
showers in the evening. Patchy fog after midnight with vsby 1 to
3 NM.
.FRI...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW
1 foot at 2 seconds and E 1 foot at 8 seconds.
.FRI NIGHT...SW winds around 10 kt, becoming NW after midnight.
Seas 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and E
1 foot at 8 seconds.
.SAT...N winds around 5 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: NW 1 foot at 3 seconds and E 1 foot
at 8 seconds.
.SAT NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: S 1 foot at 2 seconds and NE 1 foot at 6 seconds.
.SUN AND SUN NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
.MON...SE winds 5 to 10 kt. Seas around 2 ft. A chance of rain.
.MON NIGHT...SE winds around 10 kt. Seas around 2 ft. Rain
likely.

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.

$$

ANZ254-232100-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
403 AM EDT Thu May 23 2024

.TODAY...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 8 seconds.
Patchy fog. A slight chance of showers this morning, then a
chance of showers this afternoon. 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 3 ft at 4 seconds and E
1 foot at 7 seconds. Patchy fog. A chance of showers after
midnight. Vsby 1 to 3 NM, decreasing to 1 NM or less after
midnight.
.FRI...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 2 ft
at 4 seconds and E 1 foot at 8 seconds. Patchy fog in the morning
with vsby 1 to 3 NM.
.FRI NIGHT...SW winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and
SE 1 foot at 9 seconds.
.SAT AND SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: NW 2 ft at 5 seconds and E 1 foot at 9 seconds.
.SUN AND SUN NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 4 seconds and SE 1 foot at 7 seconds.
.MON...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of rain.
.MON NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Rain likely.

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.

$$

ANZ255-232100-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
403 AM EDT Thu May 23 2024

.TODAY...SW winds around 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SW 3 ft at 5 seconds and E 2 ft at 8 seconds.
Patchy fog. A chance of showers. 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 3 ft at 5 seconds and E
1 foot at 8 seconds. Patchy fog. A chance of showers after
midnight. Vsby 1 NM or less.
.FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 5 seconds and E 1 foot at 8 seconds. Patchy fog in the morning
with vsby 1 to 3 NM.
.FRI NIGHT...SW winds around 10 kt, becoming NW after midnight.
Seas 2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 foot
at 9 seconds.
.SAT AND SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 6 seconds and SE 1 foot at 9 seconds.
.SUN AND SUN NIGHT...S winds around 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 4 seconds and SE 1 foot at 9 seconds.
.MON...SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of rain.
.MON NIGHT...SE winds around 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Rain likely.

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.

$$

ANZ256-232100-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
403 AM EDT Thu May 23 2024

.TODAY...SW winds 10 to 15 kt. Gusts up to 20 kt this afternoon.
Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and E 2 ft at
8 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less.
.TONIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and E
1 foot at 8 seconds. Patchy fog. A chance of showers. Vsby 1 NM
or less.
.FRI...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 5 seconds and E 1 foot at 8 seconds.
.FRI NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after
midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and
SE 1 foot at 8 seconds.
.SAT...NE winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 6 seconds and SE 1 foot at
9 seconds.
.SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 5 seconds and SE 1 foot at 9 seconds. A chance of
showers.
.SUN AND SUN NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.MON...SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of rain.
.MON NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 4 ft. Rain likely.

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.

$$

ANZ232-232100-
Nantucket Sound-
403 AM EDT Thu May 23 2024

.TODAY...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at
7 seconds. Patchy fog. A chance of showers. 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: SW 2 ft at 4 seconds and E 1 foot at 7 seconds. A chance
of showers. Patchy fog after midnight with vsby 1 to 3 NM.
.FRI...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
1 foot at 4 seconds and E 1 foot at 7 seconds. Patchy fog in the
morning.
.FRI NIGHT...SW winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas 1 foot or less. Wave Detail: SW 1 foot at
3 seconds and SE 1 foot at 8 seconds.
.SAT AND SAT NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: W 1 foot at 4 seconds and E 1 foot at 8 seconds.
.SUN AND SUN NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: S 1 foot at 3 seconds and SE 1 foot at 8 seconds.
.MON...SE winds 10 to 15 kt. Seas around 2 ft. A chance of rain.
.MON NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Rain likely.

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.

$$

ANZ233-232100-
Vineyard Sound-
403 AM EDT Thu May 23 2024

.TODAY...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 5 seconds and SE 1 foot at 9 seconds. Patchy fog. A
chance of showers. Vsby 1 NM or less, increasing to 1 to 3 NM
this afternoon.
.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 5 seconds and SE 1 foot at 8 seconds. Patchy fog. A
chance of showers. Vsby 1 NM or less after midnight.
.FRI...SW winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft
in the afternoon. Wave Detail: SW 1 foot at 5 seconds and SE
1 foot at 8 seconds, becoming SW 2 ft at 5 seconds and SE 1 foot
at 8 seconds. Patchy fog in the morning.
.FRI NIGHT...SW winds around 10 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 foot
at 8 seconds.
.SAT AND SAT NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: SW 1 foot at 5 seconds and SE 1 foot at 9 seconds.
.SUN AND SUN NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: S 1 foot at 4 seconds and SE 1 foot at 8 seconds.
.MON...SE winds 10 to 15 kt. Seas around 2 ft. A chance of rain.
.MON NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. Rain likely.

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.

$$

ANZ234-232100-
Buzzards Bay-
403 AM EDT Thu May 23 2024

.TODAY...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 4 seconds and SE 1 foot at 8 seconds. Patchy fog. A
chance of showers. Vsby 1 to 3 NM.
.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 5 seconds and SE 1 foot at 8 seconds. Patchy fog. A
chance of showers. Vsby 1 NM or less after midnight.
.FRI...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW
1 foot at 5 seconds and SE 1 foot at 8 seconds.
.FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 1 foot or less. Wave Detail: SW 1 foot at 5 seconds and SE
1 foot at 8 seconds.
.SAT AND SAT NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: SW 1 foot at 5 seconds and SE 1 foot at 8 seconds.
.SUN AND SUN NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: S 1 foot at 4 seconds and SE 1 foot at 8 seconds.
.MON...SE winds 10 to 15 kt. Seas 1 foot or less. A chance of
rain.
.MON NIGHT...SE winds 10 to 15 kt. Seas around 2 ft. Rain likely.


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.

$$

ANZ235-232100-
Rhode Island Sound-
403 AM EDT Thu May 23 2024

.TODAY...SW winds 10 to 15 kt. Gusts up to 20 kt this afternoon.
Seas 2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 foot
at 8 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less,
increasing to 1 to 3 NM this afternoon.
.TONIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and
SE 1 foot at 8 seconds. Patchy fog. A chance of showers. Vsby
1 to 3 NM, decreasing to 1 NM or less after midnight.
.FRI...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 5 seconds and SE 1 foot at 8 seconds.
.FRI NIGHT...SW winds around 10 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 foot
at 8 seconds.
.SAT...E winds around 5 kt, becoming S in the afternoon. Seas
around 2 ft in the morning, then 1 foot or less. Wave Detail: S
2 ft at 6 seconds and SE 1 foot at 9 seconds, becoming S 1 foot
at 5 seconds and SE 1 foot at 9 seconds.
.SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 5 seconds and SE 1 foot at 9 seconds. A chance of
showers.
.SUN AND SUN NIGHT...S winds 5 to 10 kt. Seas 1 foot or less,
then around 2 ft.
.MON...SE winds 10 to 15 kt. Seas around 2 ft. A chance of rain.
.MON NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Rain likely.

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.

$$

ANZ237-232100-
Block Island Sound-
403 AM EDT Thu May 23 2024

.TODAY...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 5 seconds and SE 1 foot at 8 seconds. Patchy fog. A
chance of showers. Isolated tstms this morning. Vsby 1 to 3 NM.
.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 5 seconds and SE 1 foot at 8 seconds. Patchy fog. A
chance of showers. Vsby 1 to 3 NM, decreasing to 1 NM or less
after midnight.
.FRI...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 5 seconds and SE 1 foot at 8 seconds.
.FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 foot
at 8 seconds.
.SAT...E winds around 5 kt, becoming S in the afternoon. Seas
around 2 ft in the morning, then 1 foot or less. Wave Detail: S
2 ft at 6 seconds and SE 1 foot at 9 seconds, becoming S 1 foot
at 5 seconds and SE 1 foot at 9 seconds.
.SAT NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: S 1 foot at 5 seconds and SE 1 foot at 9 seconds. A
chance of showers.
.SUN AND SUN NIGHT...S winds 5 to 10 kt. Seas 1 foot or less,
then around 2 ft.
.MON...SE winds 5 to 10 kt. Seas around 2 ft. A chance of rain.
.MON NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft. Rain likely.

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.

$$

ANZ230-232100-
Boston Harbor-
403 AM EDT Thu May 23 2024

.TODAY...SW winds around 10 kt. Waves 1 foot or less. A chance of
showers.
.TONIGHT...SW winds 5 to 10 kt. Waves 1 foot or less.
.FRI...W winds 5 to 10 kt. Waves 1 foot or less.
.FRI NIGHT...W winds 5 to 10 kt, becoming NW after midnight.
Waves 1 foot or less.
.SAT...N winds around 5 kt, becoming SE in the afternoon. Waves
1 foot or less.
.SAT NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. A chance
of showers after midnight.
.SUN AND SUN NIGHT...S winds 5 to 10 kt. Waves 1 foot or less.
.MON...SE winds 10 to 15 kt. Waves around 2 ft. A chance of rain.
.MON NIGHT...SE winds 10 to 15 kt. Waves 2 to 3 ft. Rain likely.

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.

$$

ANZ236-232100-
Narragansett Bay-
403 AM EDT Thu May 23 2024

.TODAY...SW winds around 10 kt. Waves around 2 ft. A chance of
showers. Patchy fog this morning.
.TONIGHT...SW winds 5 to 10 kt. Waves around 2 ft. Patchy fog
after midnight.
.FRI...SW winds 5 to 10 kt. Waves 1 foot or less.
.FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Waves around 2 ft.
.SAT...NE winds around 5 kt, becoming S in the afternoon. Waves
1 foot or less.
.SAT NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. A chance
of showers.
.SUN AND SUN NIGHT...S winds 5 to 10 kt. Waves 1 foot or less,
then around 2 ft.
.MON...SE winds 5 to 10 kt. Waves around 2 ft. A chance of rain.
.MON NIGHT...SE winds around 10 kt. Waves 2 to 3 ft. Rain likely.


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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