328
FZUS51 KBOX 050503
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
103 AM EDT Sat Oct 5 2024

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

ANZ200-051800-
103 AM EDT Sat Oct 5 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
A weak cold front approaches the waters late tonight and crosses
them Sat morning. High pres then builds over the waters later Sat
into Sun. A cold front will cross the region Mon setting up
persistent northwest flow for the rest of the work week. Dry weather
returns Tues.

$$

ANZ250-051800-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
103 AM EDT Sat Oct 5 2024

.REST OF TONIGHT...S winds 5 to 10 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 10 seconds and S 1 foot
at 3 seconds.
.SAT...W winds 5 to 10 kt, becoming N in the afternoon. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 10 seconds and SW 1 foot at
2 seconds.
.SAT NIGHT...N winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. Gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: NE 5 ft
at 10 seconds.
.SUN...N winds 10 to 15 kt with gusts up to 20 kt, becoming NE
5 to 10 kt in the afternoon. Seas 4 to 5 ft. Wave Detail: NE 5 ft
at 10 seconds.
.SUN NIGHT...E winds around 5 kt, becoming S after midnight. Seas
4 to 5 ft. Wave Detail: E 5 ft at 14 seconds. A chance of showers
after midnight.
.MON...S winds around 10 kt. Seas 4 to 6 ft. Wave Detail: SE 6 ft
at 15 seconds. Showers.
.MON NIGHT...W winds around 10 kt, becoming NW after midnight.
Seas 4 to 6 ft. A chance of showers.
.TUE...NW winds around 10 kt. Seas 4 to 6 ft.
.TUE NIGHT THROUGH WED NIGHT...NW winds 10 to 15 kt with gusts up
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.

$$

ANZ251-051800-
Massachusetts Bay and Ipswich Bay-
103 AM EDT Sat Oct 5 2024

.REST OF TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 10 seconds and S 1 foot at 3 seconds. A slight
chance of showers.
.SAT...W winds 5 to 10 kt, becoming N in the afternoon. Seas
around 2 ft. Wave Detail: E 2 ft at 10 seconds and S 1 foot at
2 seconds.
.SAT NIGHT...N winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: E
3 ft at 10 seconds and N 1 foot at 3 seconds.
.SUN...N winds 10 to 15 kt with gusts up to 20 kt, becoming NE
5 to 10 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: NE 4 ft
at 8 seconds.
.SUN NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas
3 to 4 ft. Wave Detail: E 4 ft at 10 seconds. A chance of showers
after midnight.
.MON...S winds around 10 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft
at 14 seconds. Showers.
.MON NIGHT...NW winds 5 to 10 kt. Seas 3 to 5 ft. A chance of
showers in the evening.
.TUE AND TUE NIGHT...NW winds around 10 kt. Seas 3 to 5 ft.
.WED AND WED NIGHT...W winds 10 to 15 kt. 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.

$$

ANZ231-051800-
Cape Cod Bay-
103 AM EDT Sat Oct 5 2024

.REST OF TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 10 seconds and S 1 foot at 2 seconds.
.SAT...W winds around 5 kt, becoming N in the afternoon. Seas
1 foot or less, then around 2 ft in the afternoon. Wave Detail: E
1 foot at 10 seconds, becoming E 2 ft at 10 seconds and NW 1 foot
at 2 seconds.
.SAT NIGHT...N winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: E
2 ft at 7 seconds and N 1 foot at 3 seconds.
.SUN...N winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas
2 to 3 ft. Wave Detail: N 2 ft at 5 seconds.
.SUN NIGHT...E winds around 5 kt, becoming S after midnight. Seas
2 to 3 ft. Wave Detail: N 2 ft at 5 seconds.
.MON AND MON NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: E 3 ft at 9 seconds and S 1 foot at
2 seconds. Showers.
.TUE THROUGH WED NIGHT...W winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ254-051800-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
103 AM EDT Sat Oct 5 2024

.REST OF TONIGHT...S winds around 5 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 10 seconds.
.SAT...SW winds around 5 kt, becoming NW in the afternoon. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 10 seconds.
.SAT NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft. Wave Detail: E 5 ft at 10 seconds.
.SUN...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to
5 to 10 kt in the afternoon. Seas 4 to 5 ft. Wave Detail: NE 5 ft
at 10 seconds.
.SUN NIGHT...E winds around 5 kt, becoming S after midnight. Seas
4 to 6 ft. Wave Detail: SE 6 ft at 12 seconds.
.MON AND MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt.
Seas 5 to 7 ft. Wave Detail: SE 7 ft at 14 seconds and SW 2 ft at
5 seconds. Showers.
.TUE AND TUE NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft.
.WED AND WED NIGHT...W winds 10 to 15 kt. Gusts up 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.

$$

ANZ255-051800-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
103 AM EDT Sat Oct 5 2024

.REST OF TONIGHT...S winds around 5 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 10 seconds.
.SAT...S winds around 5 kt, becoming N in the afternoon. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 10 seconds.
.SAT NIGHT...N winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 3 to 5 ft. Wave Detail: E 4 ft at 10 seconds and N
1 foot at 3 seconds.
.SUN...N winds 10 to 15 kt with gusts up to 20 kt, becoming NE
5 to 10 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: NE 5 ft
at 10 seconds and N 1 foot at 3 seconds.
.SUN NIGHT...E winds around 5 kt, becoming SE after midnight.
Seas 3 to 5 ft. Wave Detail: E 5 ft at 12 seconds and N 1 foot at
3 seconds.
.MON AND MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt.
Seas 4 to 6 ft. Wave Detail: SE 6 ft at 16 seconds and SW 4 ft at
6 seconds. Showers.
.TUE...NW winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE NIGHT...W winds around 10 kt. Seas 3 to 5 ft.
.WED AND WED NIGHT...W winds 10 to 15 kt, becoming NW 15 to
20 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.

$$

ANZ256-051800-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
103 AM EDT Sat Oct 5 2024

.REST OF TONIGHT...S winds around 5 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 10 seconds.
.SAT...NW winds around 5 kt, becoming N in the afternoon. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 10 seconds.
.SAT NIGHT...NE winds 5 to 10 kt, becoming N 10 to 15 kt with
gusts up to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: NE
4 ft at 10 seconds.
.SUN...NE winds 10 to 15 kt with gusts up to 20 kt, becoming E
5 to 10 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: NE 4 ft
at 10 seconds and N 1 foot at 3 seconds.
.SUN NIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 12 seconds.
.MON...S winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: SE 5 ft
at 15 seconds and SW 4 ft at 6 seconds. Showers.
.MON NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. A chance of
showers in the evening.
.TUE AND TUE NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft.
.WED AND WED NIGHT...W winds 10 to 15 kt, becoming NW 15 to
20 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.

$$

ANZ232-051800-
Nantucket Sound-
103 AM EDT Sat Oct 5 2024

.REST OF TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 10 seconds and S 1 foot at 3 seconds.
.SAT...SW winds around 5 kt, becoming N in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 10 seconds and S 1 foot at
3 seconds.
.SAT NIGHT...N winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: E 2 ft at 10 seconds and
NW 1 foot at 3 seconds.
.SUN...N winds 10 to 15 kt with gusts up to 20 kt, becoming NE
5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft
at 5 seconds.
.SUN NIGHT...E winds 5 to 10 kt, becoming S after midnight. Seas
2 to 3 ft. Wave Detail: NE 2 ft at 9 seconds and N 1 foot at
3 seconds.
.MON AND MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: E 3 ft at 13 seconds and S 2 ft at
3 seconds. Showers.
.TUE THROUGH WED NIGHT...NW winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ233-051800-
Vineyard Sound-
103 AM EDT Sat Oct 5 2024

.REST OF TONIGHT...S winds around 5 kt. Seas 1 foot or less. Wave
Detail: S 1 foot at 2 seconds and SE 1 foot at 10 seconds.
.SAT...W winds around 5 kt, becoming N in the afternoon. Seas
1 foot or less, then around 2 ft in the afternoon. Wave Detail:
SE 1 foot at 10 seconds, becoming SE 2 ft at 10 seconds and W
1 foot at 2 seconds.
.SAT NIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
NW 1 foot at 2 seconds and E 1 foot at 9 seconds.
.SUN...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N
1 foot at 4 seconds.
.SUN NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
E 2 ft at 7 seconds.
.MON AND MON NIGHT...NW winds 10 to 15 kt. Seas 2 to 4 ft. Wave
Detail: SW 3 ft at 6 seconds and SE 2 ft at 15 seconds. Showers.
.TUE THROUGH WED NIGHT...NW 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.

$$

ANZ234-051800-
Buzzards Bay-
103 AM EDT Sat Oct 5 2024

.REST OF TONIGHT...S winds around 5 kt. Seas 1 foot or less. Wave
Detail: S 1 foot at 2 seconds and SE 1 foot at 10 seconds.
.SAT...W winds around 5 kt, becoming N in the afternoon. Seas
1 foot or less. Wave Detail: W 1 foot at 2 seconds and SE 1 foot
at 10 seconds.
.SAT NIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
NW 1 foot at 2 seconds and NE 1 foot at 7 seconds.
.SUN...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N
1 foot at 3 seconds.
.SUN NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
E 2 ft at 5 seconds and N 1 foot at 3 seconds.
.MON AND MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and SE 2 ft at
14 seconds. Showers.
.TUE THROUGH WED 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.

$$

ANZ235-051800-
Rhode Island Sound-
103 AM EDT Sat Oct 5 2024

.REST OF TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 10 seconds.
.SAT...W winds around 5 kt, becoming N in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 10 seconds.
.SAT NIGHT...NE winds 5 to 10 kt, becoming N 10 to 15 kt after
midnight. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 10 seconds and
NW 1 foot at 2 seconds.
.SUN...NE winds 10 to 15 kt, becoming E 5 to 10 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 10 seconds and
N 1 foot at 3 seconds.
.SUN NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 12 seconds. A chance of showers after midnight.
.MON AND MON NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft. Wave
Detail: SE 5 ft at 16 seconds and SW 4 ft at 6 seconds. Showers.
.TUE THROUGH WED 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.

$$

ANZ237-051800-
Block Island Sound-
103 AM EDT Sat Oct 5 2024

.REST OF TONIGHT...SW winds around 5 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 10 seconds.
.SAT...NW winds around 5 kt, becoming N in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 10 seconds.
.SAT NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 10 seconds.
.SUN...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
2 to 3 ft. Wave Detail: E 3 ft at 10 seconds.
.SUN NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 12 seconds. A chance of showers after midnight.
.MON...S winds 10 to 15 kt, becoming SW in the afternoon. Seas
3 to 5 ft. Wave Detail: SE 4 ft at 15 seconds and SW 3 ft at
5 seconds. Showers.
.MON NIGHT...NW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers in the evening.
.TUE THROUGH WED 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.

$$

ANZ230-051800-
Boston Harbor-
103 AM EDT Sat Oct 5 2024

.REST OF TONIGHT...SW winds around 5 kt. Waves 1 foot or less. A
slight chance of showers.
.SAT...W winds 5 to 10 kt, becoming N in the afternoon. Waves
1 foot or less.
.SAT NIGHT...N winds 5 to 10 kt. Waves 1 foot or less, then
around 2 ft after midnight.
.SUN...N winds 5 to 10 kt, becoming E in the afternoon. Waves
1 foot or less.
.SUN NIGHT...SE winds 5 to 10 kt. Waves 1 foot or less. A chance
of showers after midnight.
.MON...S winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft
in the afternoon. Showers.
.MON NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less, except
2 to 4 ft at the outer harbor entrance. A chance of showers in
the evening.
.TUE THROUGH WED NIGHT...W 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.

$$

ANZ236-051800-
Narragansett Bay-
103 AM EDT Sat Oct 5 2024

.REST OF TONIGHT...SW winds around 5 kt. Waves 1 foot or less.
.SAT...NW winds around 5 kt, becoming N in the afternoon. Waves
1 foot or less.
.SAT NIGHT...N winds 5 to 10 kt. Waves around 2 ft.
.SUN...N winds 5 to 10 kt, becoming SE in the afternoon. Waves
around 2 ft.
.SUN NIGHT...S winds 5 to 10 kt. Waves 2 to 3 ft. A chance of
showers after midnight.
.MON...S winds 5 to 10 kt, becoming SW in the afternoon. Waves
2 to 4 ft. Showers.
.MON NIGHT...NW winds 5 to 10 kt. Waves 2 to 3 ft. A chance of
showers in the evening.
.TUE THROUGH WED 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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