950
FZUS51 KBOX 211703
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
103 PM EDT Sat Sep 21 2024

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

ANZ200-220600-
103 PM EDT Sat Sep 21 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
Rainy and gusty NE winds continue today with an offshore low
pressure system off the coast, just SE of Nantucket. Conditions
begin to gradually improve Sunday with high pressure building in
from the N by Mon, lasting into Wed.

$$

ANZ250-220600-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
103 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING...

.THIS AFTERNOON...NE winds 20 to 25 kt with gusts up to 30 kt.
Seas 9 to 10 ft. Wave Detail: E 9 ft at 9 seconds and NE 4 ft at
6 seconds. Rain. Vsby 1 to 3 NM.
.TONIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 7 to
9 ft. Wave Detail: E 8 ft at 9 seconds and NE 1 foot at
4 seconds. Rain likely in the evening, then a chance of showers
after midnight. Vsby 1 to 3 NM.
.SUN...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 7 to
9 ft. Wave Detail: E 8 ft at 9 seconds and NE 3 ft at 6 seconds.
.SUN NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt,
diminishing to 10 to 15 kt after midnight. Seas 7 to 9 ft. Wave
Detail: E 8 ft at 10 seconds and NE 2 ft at 5 seconds.
.MON AND MON NIGHT...E winds around 10 kt. Seas 6 to 8 ft. Wave
Detail: E 8 ft at 10 seconds and NE 1 foot at 3 seconds.
.TUE AND TUE NIGHT...E winds around 10 kt. Seas 5 to 7 ft. Wave
Detail: E 6 ft at 10 seconds.
.WED...E winds around 10 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds around 10 kt. Seas 4 to 6 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.

$$

ANZ251-220600-
Massachusetts Bay and Ipswich Bay-
103 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING...

.THIS AFTERNOON...NE winds 20 to 25 kt with gusts up to 30 kt.
Seas 6 to 9 ft. Wave Detail: E 8 ft at 9 seconds and N 4 ft at
6 seconds. Patchy fog. Rain. Vsby 1 to 3 NM.
.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
8 ft. Wave Detail: E 8 ft at 9 seconds and NE 2 ft at 5 seconds.
Rain likely in the evening, then a chance of showers after
midnight. Vsby 1 to 3 NM in the evening.
.SUN...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
7 ft. Wave Detail: E 7 ft at 9 seconds and NE 3 ft at 5 seconds.
.SUN NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt,
diminishing to around 10 kt after midnight. Seas 6 to 7 ft. Wave
Detail: E 7 ft at 9 seconds and NE 2 ft at 4 seconds.
.MON AND MON NIGHT...E winds 5 to 10 kt. Seas 5 to 7 ft. Wave
Detail: E 7 ft at 10 seconds and NE 1 foot at 3 seconds.
.TUE THROUGH WED...E winds around 10 kt. Seas 4 to 6 ft. Wave
Detail: E 6 ft at 10 seconds.
.WED NIGHT...E winds around 10 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.

$$

ANZ231-220600-
Cape Cod Bay-
103 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING...

.THIS AFTERNOON...NE winds 20 to 25 kt with gusts up to 30 kt.
Seas 5 to 7 ft. Wave Detail: E 6 ft at 9 seconds and N 5 ft at
5 seconds. Patchy fog. Rain. Vsby 1 NM or less.
.TONIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to
6 ft. Wave Detail: E 6 ft at 9 seconds and N 4 ft at 5 seconds.
Rain. Patchy fog in the evening. Vsby 1 NM or less, increasing to
1 to 3 NM after midnight.
.SUN...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Wave Detail: E 6 ft at 9 seconds and N 4 ft at 4 seconds.
.SUN NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: E
6 ft at 9 seconds and N 4 ft at 5 seconds.
.MON AND MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 4 to 5 ft. Wave Detail: E 5 ft at 10 seconds and N 2 ft at
5 seconds.
.TUE THROUGH WED...E winds around 10 kt. Seas 3 to 4 ft. Wave
Detail: E 4 ft at 10 seconds and NE 1 foot at 3 seconds.
.WED NIGHT...E winds around 10 kt. Seas around 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.

$$

ANZ254-220600-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
103 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING...

.THIS AFTERNOON...NE winds 20 to 25 kt with gusts up to 35 kt.
Seas 9 to 12 ft. Wave Detail: E 10 ft at 9 seconds and NE 2 ft at
5 seconds. Patchy fog. Rain with isolated tstms. Vsby 1 NM or
less.
.TONIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 8 to
11 ft. Wave Detail: E 9 ft at 9 seconds and NE 1 foot at
4 seconds. Rain. Patchy fog in the evening. Vsby 1 NM or less,
increasing to 1 to 3 NM after midnight.
.SUN...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to
10 ft. Wave Detail: E 9 ft at 9 seconds and NE 1 foot at
4 seconds. Rain likely in the morning with vsby 1 to 3 NM.
.SUN NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt,
diminishing to 15 to 20 kt after midnight. Seas 8 to 11 ft. Wave
Detail: E 9 ft at 10 seconds and NE 1 foot at 4 seconds.
.MON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 7 to
10 ft. Wave Detail: E 9 ft at 11 seconds and NE 1 foot at
3 seconds.
.MON NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 6 to 9 ft. Wave Detail: E 8 ft at 11 seconds and NE
1 foot at 3 seconds.
.TUE AND TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 8 ft.
.WED...E winds around 10 kt. Seas 5 to 6 ft.
.WED NIGHT...E winds around 10 kt. Seas 5 to 6 ft. A chance of
showers.

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.

$$

ANZ255-220600-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
103 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING...

.THIS AFTERNOON...NE winds around 25 kt with gusts up to 35 kt.
Seas 7 to 10 ft. Wave Detail: E 8 ft at 9 seconds and N 4 ft at
5 seconds. Patchy fog. Rain with isolated tstms. Vsby 1 NM or
less.
.TONIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to
9 ft. Wave Detail: E 8 ft at 9 seconds and N 4 ft at 5 seconds.
Patchy fog. Rain. Vsby 1 NM or less, increasing to 1 to 3 NM
after midnight.
.SUN...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to
9 ft. Wave Detail: E 8 ft at 9 seconds and N 4 ft at 5 seconds.
Rain likely in the morning with vsby 1 to 3 NM.
.SUN NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt,
diminishing to 15 to 20 kt after midnight. Seas 6 to 9 ft. Wave
Detail: E 8 ft at 10 seconds and NE 3 ft at 4 seconds.
.MON...NE winds 15 to 20 kt. Seas 6 to 9 ft. Wave Detail: E 8 ft
at 11 seconds and NE 2 ft at 4 seconds.
.MON NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 5 to 8 ft. Wave Detail: E 8 ft at 11 seconds and NE
2 ft at 4 seconds.
.TUE AND TUE NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft.
.WED...E winds 10 to 15 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. A chance of
showers.

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.

$$

ANZ256-220600-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
103 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING...

.THIS AFTERNOON...N winds 25 to 30 kt with gusts up to 35 kt.
Seas 6 to 8 ft. Wave Detail: N 6 ft at 5 seconds and E 6 ft at
9 seconds. Rain likely. Vsby 1 to 3 NM.
.TONIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to
8 ft. Wave Detail: E 6 ft at 9 seconds and N 5 ft at 5 seconds.
Rain likely. Vsby 1 to 3 NM.
.SUN...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to
7 ft. Wave Detail: E 6 ft at 9 seconds and N 4 ft at 5 seconds.
.SUN NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt,
diminishing to 15 to 20 kt after midnight. Seas 5 to 7 ft. Wave
Detail: E 7 ft at 9 seconds and NE 3 ft at 5 seconds.
.MON AND MON NIGHT...NE winds 15 to 20 kt. Seas 5 to 7 ft. Wave
Detail: E 7 ft at 11 seconds and NE 1 foot at 4 seconds.
.TUE THROUGH WED...E winds 10 to 15 kt. Seas 4 to 6 ft. Wave
Detail: E 6 ft at 11 seconds and NE 1 foot at 3 seconds.
.WED NIGHT...E winds 10 to 15 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.

$$

ANZ232-220600-
Nantucket Sound-
103 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING...

.THIS AFTERNOON...NE winds 20 to 25 kt with gusts up to 35 kt.
Seas 5 to 7 ft. Wave Detail: N 4 ft at 5 seconds and E 4 ft at
10 seconds. Patchy fog. Rain with isolated tstms. Vsby 1 NM or
less.
.TONIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to
6 ft. Wave Detail: N 4 ft at 5 seconds and E 4 ft at 9 seconds.
Rain. Patchy fog in the evening. Vsby 1 to 3 NM.
.SUN...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to
6 ft. Wave Detail: E 4 ft at 9 seconds and N 3 ft at 4 seconds. A
chance of rain in the morning with vsby 1 to 3 NM.
.SUN NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt,
diminishing to 15 to 20 kt after midnight. Seas 4 to 6 ft. Wave
Detail: E 5 ft at 10 seconds and NE 3 ft at 4 seconds.
.MON...NE winds 15 to 20 kt. Seas 4 to 6 ft. Wave Detail: E 4 ft
at 11 seconds and NE 3 ft at 4 seconds.
.MON NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 5 ft. Wave Detail: E 4 ft at 11 seconds and NE
2 ft at 4 seconds.
.TUE THROUGH WED...E winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers.

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.

$$

ANZ233-220600-
Vineyard Sound-
103 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING...

.THIS AFTERNOON...N winds 20 to 25 kt with gusts up to 30 kt.
Seas 4 to 5 ft. Wave Detail: N 3 ft at 5 seconds and E 2 ft at
9 seconds. Patchy fog. Rain. Vsby 1 to 3 NM.
.TONIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
4 ft. Wave Detail: N 2 ft at 5 seconds and E 2 ft at 9 seconds.
Rain. Patchy fog in the evening. Vsby 1 to 3 NM.
.SUN...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: N 2 ft at 4 seconds and E 2 ft at 9 seconds.
.SUN NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt,
diminishing to 10 to 15 kt after midnight. Seas 3 to 4 ft. Wave
Detail: NE 2 ft at 4 seconds and E 2 ft at 9 seconds.
.MON AND MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: E 3 ft at 11 seconds and NE 2 ft at
3 seconds.
.TUE THROUGH WED...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: E 2 ft at 10 seconds and NE 1 foot at 3 seconds.
.WED NIGHT...E winds 10 to 15 kt. Seas 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.

$$

ANZ234-220600-
Buzzards Bay-
103 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING...

.THIS AFTERNOON...N winds 20 to 25 kt with gusts up to 30 kt.
Seas 4 to 5 ft. Wave Detail: N 3 ft at 5 seconds and E 3 ft at
9 seconds. Patchy fog. Rain. Vsby 1 to 3 NM.
.TONIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
4 ft. Wave Detail: E 3 ft at 9 seconds and N 2 ft at 5 seconds.
Rain. Vsby 1 to 3 NM.
.SUN...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: E 3 ft at 9 seconds and N 2 ft at 4 seconds.
.SUN NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt,
diminishing to 10 to 15 kt after midnight. Seas 3 to 5 ft. Wave
Detail: E 3 ft at 9 seconds and NE 2 ft at 3 seconds.
.MON AND MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 5 ft. Wave Detail: E 3 ft at 10 seconds and NE 2 ft at
3 seconds.
.TUE THROUGH WED...E winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: E 3 ft at 11 seconds and NE 1 foot
at 2 seconds.
.WED NIGHT...E 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.

$$

ANZ235-220600-
Rhode Island Sound-
103 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING...

.THIS AFTERNOON...N winds 20 to 25 kt with gusts up to 35 kt.
Seas around 5 ft. Wave Detail: N 4 ft at 5 seconds and SE 3 ft at
9 seconds. Rain. Vsby 1 to 3 NM.
.TONIGHT...NE winds 20 to 25 kt, becoming N 15 to 20 kt after
midnight. Gusts up to 30 kt. Seas 4 to 5 ft. Wave Detail: N 4 ft
at 5 seconds and SE 3 ft at 9 seconds. Rain likely in the
evening, then a chance of showers after midnight. Vsby 1 to 3 NM.
.SUN...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
5 ft. Wave Detail: E 4 ft at 9 seconds and N 3 ft at 4 seconds.
.SUN NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: E
4 ft at 9 seconds and NE 3 ft at 4 seconds.
.MON AND MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 4 ft. Wave Detail: E 4 ft at 12 seconds and NE 2 ft at
4 seconds.
.TUE THROUGH WED...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave
Detail: E 4 ft at 11 seconds and NE 1 foot at 3 seconds.
.WED NIGHT...E winds 10 to 15 kt. Seas around 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.

$$

ANZ237-220600-
Block Island Sound-
103 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING...

.THIS AFTERNOON...N winds 20 to 25 kt with gusts up to 30 kt.
Seas 4 to 5 ft. Wave Detail: E 4 ft at 9 seconds and N 3 ft at
5 seconds. Rain likely. Vsby 1 to 3 NM.
.TONIGHT...N winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft. Wave Detail: E 4 ft at 9 seconds and NE 3 ft at 5 seconds.
A chance of showers. Vsby 1 to 3 NM in the evening.
.SUN...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: E 4 ft at 9 seconds and NE 3 ft at 4 seconds.
.SUN NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt,
diminishing to 10 to 15 kt after midnight. Seas 4 to 5 ft. Wave
Detail: E 4 ft at 9 seconds and NE 3 ft at 4 seconds.
.MON AND MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. Wave
Detail: E 5 ft at 11 seconds and NE 1 foot at 4 seconds.
.TUE THROUGH WED...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave
Detail: E 4 ft at 11 seconds and NE 1 foot at 3 seconds.
.WED NIGHT...E winds around 10 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.

$$

ANZ230-220600-
Boston Harbor-
103 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON...

.THIS AFTERNOON...NE winds 15 to 20 kt with gusts up to 25 kt.
Waves 2 to 3 ft, except 4 to 6 ft at the outer harbor entrance.
Rain. Vsby 1 to 3 NM.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Waves
2 to 3 ft. Rain likely in the evening with vsby 1 to 3 NM.
.SUN...NE winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to
3 ft, except 4 to 6 ft at the outer harbor entrance.
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Waves 2 to 3 ft in the
evening, then 1 foot or less. At the outer harbor entrance, waves
3 to 5 ft.
.MON AND MON NIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft.
.TUE THROUGH WED...E winds 5 to 10 kt. Waves 2 to 3 ft.
.WED NIGHT...E winds 5 to 10 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.

$$

ANZ236-220600-
Narragansett Bay-
103 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON...

.THIS AFTERNOON...N winds 15 to 20 kt with gusts up to 30 kt.
Waves around 3 ft. Rain. Vsby 1 to 3 NM.
.TONIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Gusts up to 25 kt. Waves 2 to 3 ft. Rain likely in the
evening, then a chance of showers after midnight. Vsby 1 to 3 NM.
.SUN...NE winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to
3 ft.
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Waves 2 to 3 ft.
.MON AND MON NIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft.
.TUE THROUGH WED...E winds 5 to 10 kt. Waves 2 to 3 ft.
.WED NIGHT...E winds 5 to 10 kt. Waves 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.

$$

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