378
FZUS51 KBOX 130203
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1003 PM EDT Sat Oct 12 2024

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

ANZ200-131500-
1003 PM EDT Sat Oct 12 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
Strong NW winds persist into the early evening. High pres builds
over the waters tonight before moving to the E Sun. A warm front
will lift N across the waters late Sun and Sun night as low pres
tracks across the region. The low pres moves to the N on Mon with a
strong cold front sweeping across waters Mon afternoon. The low pres
will set up across the Maritimes Tue and Wed bringing gusty W winds.

$$

ANZ250-131500-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1003 PM EDT Sat Oct 12 2024

.OVERNIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt.
Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: NW 4 ft at
4 seconds and SE 2 ft at 14 seconds.
.SUN...NW winds 5 to 10 kt, becoming E 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 5 seconds and
E 2 ft at 14 seconds.
.SUN NIGHT...SE winds 10 to 15 kt, becoming N after midnight.
Gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at
7 seconds and SE 2 ft at 4 seconds. A chance of showers in the
evening, then showers likely after midnight.
.MON...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: E 4 ft at 7 seconds and W 3 ft at 4 seconds.
Showers likely.
.MON NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 5 ft. Wave Detail: W 4 ft at 4 seconds and E 3 ft at
8 seconds. A chance of showers in the evening.
.TUE AND TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 5 ft. Wave Detail: W 4 ft at 5 seconds and SE 2 ft at
10 seconds.
.WED THROUGH THU NIGHT...NW winds 15 to 20 kt with gusts up to
25 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.

$$

ANZ251-131500-
Massachusetts Bay and Ipswich Bay-
1003 PM EDT Sat Oct 12 2024

.OVERNIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. Wave Detail: NW 2 ft at 3 seconds and E 2 ft at
9 seconds.
.SUN...NW winds 5 to 10 kt, becoming E in the afternoon. Seas
around 2 ft. Wave Detail: NE 2 ft at 9 seconds and NW 1 foot at
3 seconds.
.SUN NIGHT...E winds 10 to 15 kt, becoming N after midnight.
Gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: NE 3 ft at
6 seconds and SE 1 foot at 4 seconds. A chance of showers in the
evening, then showers likely after midnight. Patchy fog after
midnight.
.MON...NW winds 10 to 15 kt. Gusts up to 25 kt in the afternoon.
Seas 2 to 4 ft. Wave Detail: NE 3 ft at 6 seconds and W 2 ft at
3 seconds. Showers likely.
.MON NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and NE 2 ft at
7 seconds. A chance of showers in the evening.
.TUE AND TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and E 1 foot at
8 seconds.
.WED THROUGH THU NIGHT...W winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ231-131500-
Cape Cod Bay-
1003 PM EDT Sat Oct 12 2024

.OVERNIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt. Seas around
2 ft. Wave Detail: NW 2 ft at 4 seconds and E 1 foot at
12 seconds.
.SUN...NW winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: N 2 ft at 5 seconds and NE 1 foot at
10 seconds.
.SUN NIGHT...S winds 10 to 15 kt, becoming W after midnight.
Gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at
7 seconds and S 1 foot at 3 seconds. Showers likely after
midnight.
.MON...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: W 2 ft at 3 seconds and SE 2 ft at 7 seconds.
Showers likely.
.MON NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 4 ft. Wave Detail: W 3 ft at 4 seconds and E 1 foot at
6 seconds. A chance of showers in the evening.
.TUE AND TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and E 1 foot at
7 seconds.
.WED THROUGH 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.

$$

ANZ254-131500-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1003 PM EDT Sat Oct 12 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT SUNDAY...

.OVERNIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft. Wave Detail: NW 4 ft at 5 seconds and SE 2 ft at
13 seconds.
.SUN...NW winds 5 to 10 kt, becoming SE 10 to 15 kt in the
afternoon. Seas 2 to 4 ft. Wave Detail: NW 3 ft at 6 seconds and
E 3 ft at 12 seconds.
.SUN NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 6 ft. Wave Detail: SW 5 ft at 5 seconds and SE 5 ft at
12 seconds. A chance of showers after midnight.
.MON...SW winds 10 to 15 kt, becoming W 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: S 5 ft
at 9 seconds and W 3 ft at 5 seconds. A chance of showers in the
morning, then showers likely in the afternoon.
.MON NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas
5 to 7 ft. Wave Detail: S 5 ft at 9 seconds and W 4 ft at
5 seconds. A chance of showers in the evening.
.TUE AND TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 4 to 6 ft. Wave Detail: W 4 ft at 5 seconds and S 4 ft at
9 seconds.
.WED AND WED NIGHT...NW winds 15 to 20 kt. Seas 3 to 5 ft.
.THU AND THU NIGHT...NW winds 10 to 15 kt. 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.

$$

ANZ255-131500-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1003 PM EDT Sat Oct 12 2024

.OVERNIGHT...NW winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: W
4 ft at 6 seconds and SE 2 ft at 13 seconds.
.SUN...E winds 5 to 10 kt, becoming SE 10 to 15 kt in the
afternoon. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and
SE 2 ft at 12 seconds.
.SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 6 ft, building to 5 to 8 ft after midnight. Wave Detail: S
6 ft at 7 seconds and SE 2 ft at 12 seconds, becoming SW 7 ft at
8 seconds and S 7 ft at 12 seconds. A chance of showers after
midnight.
.MON...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to
8 ft. Wave Detail: SW 7 ft at 9 seconds and SW 6 ft at 7 seconds.
Showers likely.
.MON NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas
5 to 8 ft. Wave Detail: SW 7 ft at 8 seconds and S 4 ft at
10 seconds. A chance of showers in the evening.
.TUE AND TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 4 to 6 ft. Wave Detail: SW 5 ft at 7 seconds.
.WED AND WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 5 ft.
.THU AND THU NIGHT...NW winds 10 to 15 kt. 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.

$$

ANZ256-131500-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1003 PM EDT Sat Oct 12 2024

.OVERNIGHT...N winds 10 to 15 kt. Gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: NW 4 ft at 5 seconds and SE 2 ft at
13 seconds.
.SUN...E winds 5 to 10 kt, becoming SE 15 to 20 kt in the
afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft at 5 seconds and
SE 2 ft at 12 seconds.
.SUN NIGHT...SW winds 20 to 25 kt. Seas 5 to 8 ft. Wave Detail:
SW 8 ft at 7 seconds and S 8 ft at 12 seconds. A chance of
showers after midnight.
.MON...W winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. Gusts up to 30 kt. Seas 6 to 8 ft. Wave Detail: SW
8 ft at 9 seconds and W 5 ft at 6 seconds. Showers likely, mainly
in the morning.
.MON NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas
5 to 7 ft. Wave Detail: W 7 ft at 8 seconds and S 6 ft at
11 seconds.
.TUE AND TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 4 to 6 ft. Wave Detail: W 5 ft at 5 seconds and S 4 ft at
8 seconds.
.WED AND WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 5 ft.
.THU AND THU NIGHT...NW 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.

$$

ANZ232-131500-
Nantucket Sound-
1003 PM EDT Sat Oct 12 2024

.OVERNIGHT...NW winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
NW 2 ft at 4 seconds and SE 1 foot at 12 seconds.
.SUN...N winds around 5 kt, becoming SE 10 to 15 kt in the
afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds and
E 1 foot at 10 seconds.
.SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at
10 seconds. A chance of showers after midnight.
.MON...W winds 15 to 20 kt. Gusts up to 30 kt in the afternoon.
Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and S 2 ft at
9 seconds. Showers likely.
.MON NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas
3 to 4 ft. Wave Detail: W 4 ft at 4 seconds and S 2 ft at
9 seconds. A chance of showers in the evening.
.TUE AND TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and S 1 foot at
9 seconds.
.WED THROUGH THU NIGHT...NW winds 15 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.

$$

ANZ233-131500-
Vineyard Sound-
1003 PM EDT Sat Oct 12 2024

.OVERNIGHT...NW winds 10 to 15 kt, becoming N 5 to 10 kt. Seas
around 2 ft. Wave Detail: W 2 ft at 6 seconds and S 1 foot at
11 seconds.
.SUN...NE winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft
in the afternoon. Wave Detail: SW 1 foot at 6 seconds and SE
1 foot at 9 seconds, becoming S 2 ft at 5 seconds and SE 1 foot
at 10 seconds.
.SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: S 5 ft at 11 seconds and S 4 ft at
6 seconds. A chance of showers after midnight.
.MON...W winds 15 to 20 kt. Gusts up to 30 kt in the afternoon.
Seas 3 to 5 ft. Wave Detail: SW 5 ft at 7 seconds. Showers
likely, mainly in the morning.
.MON NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 5 ft. Wave Detail: S 5 ft at 9 seconds and W 4 ft at
7 seconds. A chance of showers in the evening.
.TUE AND TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: W 4 ft at 6 seconds and S 2 ft at
9 seconds.
.WED THROUGH THU NIGHT...NW winds 15 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.

$$

ANZ234-131500-
Buzzards Bay-
1003 PM EDT Sat Oct 12 2024

.OVERNIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
NW 2 ft at 5 seconds and S 1 foot at 11 seconds.
.SUN...NE winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft
in the afternoon. Wave Detail: SW 1 foot at 6 seconds and SE
1 foot at 9 seconds, becoming SE 2 ft at 5 seconds and SE 1 foot
at 10 seconds.
.SUN NIGHT...SW winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail:
SW 4 ft at 7 seconds and S 4 ft at 10 seconds. A chance of
showers.
.MON...W winds 10 to 15 kt with gusts up to 20 kt, increasing to
15 to 20 kt with gusts up to 30 kt in the afternoon. Seas 3 to
4 ft. Wave Detail: S 4 ft at 8 seconds and SW 3 ft at 5 seconds.
Showers likely, mainly in the morning.
.MON NIGHT THROUGH TUE NIGHT...W winds 15 to 20 kt with gusts up
to 30 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 9 seconds and W
3 ft at 6 seconds.
.WED THROUGH THU NIGHT...NW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 3 ft. Wave Detail: W 3 ft at 5 seconds and SE
1 foot at 11 seconds.

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.

$$

ANZ235-131500-
Rhode Island Sound-
1003 PM EDT Sat Oct 12 2024

.OVERNIGHT...N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: W
3 ft at 6 seconds and SE 2 ft at 13 seconds.
.SUN...E winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at
5 seconds and SE 2 ft at 12 seconds.
.SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft, building to 5 to 7 ft after midnight. Wave Detail: S
5 ft at 7 seconds and SE 2 ft at 12 seconds, becoming S 7 ft at
12 seconds and SW 6 ft at 7 seconds. A chance of showers.
.MON...W winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
7 ft. Wave Detail: S 7 ft at 8 seconds and W 3 ft at 5 seconds.
Showers likely, mainly in the morning.
.MON NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 6 ft. Wave Detail: S 6 ft at 9 seconds and W 4 ft at
6 seconds.
.TUE AND TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 4 ft. Wave Detail: SW 4 ft at 7 seconds.
.WED AND WED NIGHT...NW winds 15 to 20 kt. Seas 2 to 4 ft.
.THU AND THU NIGHT...NW winds 10 to 15 kt. Seas around 2 ft, then
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.

$$

ANZ237-131500-
Block Island Sound-
1003 PM EDT Sat Oct 12 2024

.OVERNIGHT...NW winds 10 to 15 kt, becoming N 5 to 10 kt. Seas
around 2 ft. Wave Detail: NW 2 ft at 4 seconds and SE 2 ft at
13 seconds.
.SUN...E winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at
5 seconds and SE 2 ft at 12 seconds.
.SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 6 ft. Wave Detail: S 6 ft at 7 seconds. A chance of showers.
.MON...W winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft
at 9 seconds and W 3 ft at 4 seconds. A chance of showers.
.MON NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 5 ft. Wave Detail: S 4 ft at 9 seconds and W 3 ft at
4 seconds.
.TUE AND TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and S 3 ft at
8 seconds.
.WED THROUGH 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.

$$

ANZ230-131500-
Boston Harbor-
1003 PM EDT Sat Oct 12 2024

.OVERNIGHT...NW winds 5 to 10 kt. Waves 1 foot or less.
.SUN...NW winds around 5 kt, becoming E in the afternoon. Waves
1 foot or less.
.SUN NIGHT...NE winds 5 to 10 kt, becoming N after midnight.
Waves 1 foot or less. Showers likely. Patchy fog after midnight.
.MON...NW winds 10 to 15 kt. Gusts up to 25 kt in the afternoon.
Waves around 2 ft. Showers likely.
.MON NIGHT THROUGH TUE NIGHT...W winds 15 to 20 kt with gusts up
to 25 kt. Waves around 2 ft.
.WED THROUGH THU NIGHT...W winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ236-131500-
Narragansett Bay-
1003 PM EDT Sat Oct 12 2024

.OVERNIGHT...NW winds 5 to 10 kt. Waves around 2 ft.
.SUN...NE winds 5 to 10 kt, becoming SE with gusts up to 20 kt in
the afternoon. Waves around 2 ft.
.SUN NIGHT...S winds 10 to 15 kt, becoming W after midnight.
Gusts up to 20 kt. Waves 2 to 4 ft. A chance of showers.
.MON...W winds 10 to 15 kt with gusts up to 25 kt. Waves 3 to
5 ft. Showers likely, mainly in the morning.
.MON NIGHT THROUGH TUE NIGHT...W winds 10 to 15 kt with gusts up
to 25 kt. Waves 2 to 3 ft.
.WED THROUGH THU NIGHT...NW winds 10 to 15 kt with gusts up to
20 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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