454
FZUS51 KBOX 240204
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1003 PM EDT Thu May 23 2024

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

ANZ200-241500-
1003 PM EDT Thu May 23 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
Cold front crosses the water this evening. Broad area of moderate
rain showers exits before 8pm but some isolated heavy showers or a
rumble of thunder are possible through midnight. Fog likely, dense
at times for coastal zones. High pressure establishes across the
region tomorrow. 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.

$$

ANZ250-241500-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1003 PM EDT Thu May 23 2024

.OVERNIGHT...W 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 1 foot at
8 seconds. Patchy fog. Vsby 1 NM or less.
.FRI...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up
to 20 kt in the afternoon. 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 with gusts up to 20 kt, becoming
N 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: SW
2 ft at 4 seconds and SE 1 foot at 9 seconds.
.SAT...N winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: NW 1 foot at 3 seconds and E 1 foot at
8 seconds.
.SAT NIGHT THROUGH SUN NIGHT...SE winds around 10 kt. Seas around
2 ft. Wave Detail: S 2 ft at 3 seconds and E 1 foot at 7 seconds.
.MON...SE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 4 seconds and E 2 ft at 7 seconds.
.MON NIGHT AND TUE...SE winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 5 ft. A chance of showers.
.TUE NIGHT...S winds 10 to 15 kt with 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.

$$

ANZ251-241500-
Massachusetts Bay and Ipswich Bay-
1003 PM EDT Thu May 23 2024

.OVERNIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SW 1 foot at 3 seconds and E 1 foot at 7 seconds.
.FRI...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 1 foot or less. Wave Detail: SW
1 foot at 3 seconds and E 1 foot at 7 seconds.
.FRI NIGHT...W winds 10 to 15 kt, becoming N 5 to 10 kt after
midnight. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and
E 1 foot at 9 seconds.
.SAT...N winds 5 to 10 kt, becoming SE in the afternoon. Seas
1 foot or less, then around 2 ft in the afternoon. Wave Detail:
NW 1 foot at 3 seconds and E 1 foot at 8 seconds, becoming SE
1 foot at 2 seconds and E 1 foot at 7 seconds.
.SAT NIGHT THROUGH SUN NIGHT...SE winds 5 to 10 kt. Seas around
2 ft. Wave Detail: SE 2 ft at 3 seconds and E 1 foot at
7 seconds.
.MON...SE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 3 seconds and E 1 foot at 8 seconds. A chance of showers.
.MON NIGHT AND TUE...SE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. A chance of showers.
.TUE NIGHT...S winds 10 to 15 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.

$$

ANZ231-241500-
Cape Cod Bay-
1003 PM EDT Thu May 23 2024

.OVERNIGHT...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. Patchy
fog. Vsby 1 to 3 NM, decreasing to 1 NM or less.
.FRI...W winds around 5 kt, becoming SW 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 1 foot or less. Wave Detail: SW
1 foot at 3 seconds and E 1 foot at 8 seconds.
.FRI NIGHT...SW winds 10 to 15 kt, becoming N 5 to 10 kt after
midnight. Seas 1 foot or less. Wave Detail: SW 1 foot at
3 seconds and E 1 foot at 8 seconds.
.SAT...N winds around 5 kt, becoming E in the afternoon. Seas
1 foot or less. Wave Detail: NW 1 foot at 3 seconds and NE 1 foot
at 7 seconds.
.SAT NIGHT THROUGH SUN NIGHT...SE 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.
.MON...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
1 foot at 2 seconds and SE 1 foot at 8 seconds.
.MON NIGHT AND TUE...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. A chance of showers.
.TUE NIGHT...S winds 10 to 15 kt with gusts up 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.

$$

ANZ254-241500-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1003 PM EDT Thu May 23 2024

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

$$

ANZ255-241500-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1003 PM EDT Thu May 23 2024

.OVERNIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW
3 ft at 5 seconds and E 1 foot at 8 seconds. Patchy fog. Vsby
1 NM or less.
.FRI...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and
E 1 foot at 8 seconds. Patchy dense fog in the morning, then
patchy fog in the afternoon. Vsby 1 NM or less.
.FRI NIGHT...SW winds 10 to 15 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. Patchy fog in the evening.
.SAT...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: SW 2 ft at 5 seconds and E 1 foot at
9 seconds.
.SAT NIGHT THROUGH SUN NIGHT...SE winds 5 to 10 kt. Seas around
2 ft. Wave Detail: S 2 ft at 5 seconds and SE 1 foot at
9 seconds.
.MON...SE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 4 seconds and S 2 ft at 9 seconds.
.MON NIGHT...SE winds 15 to 20 kt. Seas 3 to 5 ft. A chance of
showers.
.TUE...S winds 15 to 20 kt. Seas 4 to 6 ft. A chance of showers.
.TUE NIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas
4 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.

$$

ANZ256-241500-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1003 PM EDT Thu May 23 2024

.OVERNIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW
3 ft at 5 seconds and E 1 foot at 8 seconds. Patchy fog. 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 SE 1 foot at 8 seconds. Patchy dense fog in the
morning, then patchy fog in the afternoon. Vsby 1 NM or less.
.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 5 seconds and
SE 1 foot at 8 seconds. Patchy fog in the evening.
.SAT...NE winds 5 to 10 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 THROUGH SUN NIGHT...SE winds 5 to 10 kt. Seas around
2 ft. Wave Detail: S 2 ft at 5 seconds and SE 1 foot at
9 seconds.
.MON...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SE 2 ft at 4 seconds and SE 2 ft at 9 seconds.
.MON NIGHT AND TUE...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 5 ft. A chance of showers.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
4 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.

$$

ANZ232-241500-
Nantucket Sound-
1003 PM EDT Thu May 23 2024

.OVERNIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming W 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at
4 seconds and E 1 foot at 7 seconds. Patchy fog. Vsby 1 NM or
less.
.FRI...W winds 5 to 10 kt, becoming SW 10 to 15 kt in the
afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds
and E 1 foot at 7 seconds. Patchy fog. Vsby 1 NM or less in the
morning.
.FRI NIGHT...SW winds 10 to 15 kt, becoming N 5 to 10 kt after
midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and
SE 1 foot at 7 seconds.
.SAT...NE winds around 5 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: SW 1 foot at 4 seconds and NE 1 foot
at 6 seconds.
.SAT NIGHT THROUGH SUN NIGHT...SE winds 5 to 10 kt. Seas 1 foot
or less. Wave Detail: S 1 foot at 3 seconds and E 1 foot at
8 seconds.
.MON...SE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 3 seconds and SE 1 foot at 9 seconds.
.MON NIGHT AND TUE...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. A chance of showers.
.TUE NIGHT...S winds 10 to 15 kt with gusts up 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.

$$

ANZ233-241500-
Vineyard Sound-
1003 PM EDT Thu May 23 2024

.OVERNIGHT...W 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. Vsby
1 NM or less.
.FRI...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. 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 4 seconds and SE 1 foot at
8 seconds. Patchy fog in the morning with vsby 1 NM or less.
.FRI NIGHT...SW winds 10 to 15 kt, becoming NW 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.
.SAT...NE winds around 5 kt, becoming S in the afternoon. Seas
1 foot or less. Wave Detail: S 1 foot at 5 seconds and E 1 foot
at 8 seconds.
.SAT NIGHT THROUGH SUN NIGHT...SE winds 5 to 10 kt. Seas 1 foot
or less. Wave Detail: S 1 foot at 5 seconds and SE 1 foot at
8 seconds.
.MON...SE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SE
1 foot at 3 seconds and S 1 foot at 9 seconds.
.MON NIGHT AND TUE...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. A chance of showers.
.TUE NIGHT...S winds 10 to 15 kt with gusts up 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.

$$

ANZ234-241500-
Buzzards Bay-
1003 PM EDT Thu May 23 2024

.OVERNIGHT...W 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. Vsby
1 NM or less.
.FRI...SW winds around 5 kt, increasing to 10 to 15 kt in the
afternoon. Seas 1 foot or less. Wave Detail: SW 1 foot at
4 seconds and SE 1 foot at 8 seconds. Patchy fog in the morning
with vsby 1 NM or less.
.FRI NIGHT...SW winds 10 to 15 kt, becoming N 5 to 10 kt after
midnight. Seas 1 foot or less. Wave Detail: SW 1 foot at
4 seconds and SE 1 foot at 8 seconds.
.SAT...NE winds around 5 kt, becoming S in the afternoon. Seas
1 foot or less. Wave Detail: S 1 foot at 4 seconds and E 1 foot
at 8 seconds.
.SAT NIGHT THROUGH SUN NIGHT...SE 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. Wave Detail: SE
1 foot at 3 seconds and SE 1 foot at 9 seconds.
.MON NIGHT AND TUE...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. A chance of showers.
.TUE NIGHT...S winds 10 to 15 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.

$$

ANZ235-241500-
Rhode Island Sound-
1003 PM EDT Thu May 23 2024

.OVERNIGHT...W 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. Vsby
1 NM or less.
.FRI...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds
and SE 1 foot at 8 seconds. Patchy fog. Vsby 1 NM or less,
increasing to 1 to 3 NM in the afternoon.
.FRI NIGHT...SW winds 10 to 15 kt, becoming NW 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.
.SAT...NE 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 6 seconds and SE 1 foot at 9 seconds.
.SAT NIGHT THROUGH SUN NIGHT...SE winds 5 to 10 kt. Seas around
2 ft. Wave Detail: S 2 ft at 5 seconds and SE 1 foot at
9 seconds.
.MON...SE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 4 seconds and S 2 ft at 9 seconds. A chance of showers.
.MON NIGHT AND TUE...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. A chance of showers.
.TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ237-241500-
Block Island Sound-
1003 PM EDT Thu May 23 2024

.OVERNIGHT...W 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. Vsby
1 NM or less.
.FRI...SW winds around 5 kt, increasing to 5 to 10 kt in the
afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds
and SE 1 foot at 8 seconds. Patchy fog. Vsby 1 NM or less.
.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 5 seconds and SE 1 foot at 9 seconds, becoming S 1 foot
at 5 seconds and SE 1 foot at 9 seconds.
.SAT NIGHT THROUGH SUN NIGHT...SE winds 5 to 10 kt. Seas around
2 ft. Wave Detail: S 2 ft at 5 seconds and SE 1 foot at
9 seconds.
.MON THROUGH TUE...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds and SE 3 ft at
4 seconds. A chance of showers.
.TUE NIGHT...SW winds 10 to 15 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.

$$

ANZ230-241500-
Boston Harbor-
1003 PM EDT Thu May 23 2024

.OVERNIGHT...W winds 5 to 10 kt. Waves 1 foot or less.
.FRI...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up
to 20 kt in the afternoon. Waves 1 foot or less.
.FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
NW 5 to 10 kt 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 THROUGH SUN NIGHT...SE winds 5 to 10 kt. Waves 1 foot
or less.
.MON...SE winds 10 to 15 kt. Waves around 2 ft. A chance of
showers.
.MON NIGHT...SE winds 10 to 15 kt. Waves 2 to 3 ft. Showers
likely.
.TUE...S winds 10 to 15 kt. Waves 2 to 3 ft. A chance of showers.
.TUE NIGHT...S winds 10 to 15 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.

$$

ANZ236-241500-
Narragansett Bay-
1003 PM EDT Thu May 23 2024

.OVERNIGHT...W winds 5 to 10 kt. Waves around 2 ft. Patchy fog.
Vsby 1 to 3 NM, decreasing to 1 NM or less.
.FRI...SW winds around 5 kt, increasing to around 10 kt in the
afternoon. Waves 1 foot or less. Patchy fog in the morning with
vsby 1 NM 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 THROUGH SUN NIGHT...SE winds 5 to 10 kt. Waves 1 foot
or less.
.MON...SE winds 5 to 10 kt. Waves around 2 ft. A chance of
showers.
.MON NIGHT AND TUE...S winds 10 to 15 kt. Waves 2 to 4 ft. A
chance of showers.
.TUE NIGHT...S winds around 10 kt. Waves 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.

$$

For the latest updates...please visit our webpage at
www.weather.gov/boston

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston