Coastal Waters Forecast
Issued by NWS Boston, MA

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000
FZUS51 KBOX 261101
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
701 AM EDT Tue Sep 26 2023

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

ANZ200-270000-
701 AM EDT Tue Sep 26 2023

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres will gradually build into our region today through Thu.
The high builds into Nova Scotia late on Thu. A weak low lifts
toward the southern waters late on Thu through early Sat, and could
bring rain. High pres builds in Sat into early next week.

$$

ANZ250-270000-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
701 AM EDT Tue Sep 26 2023

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING...

.TODAY...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
7 ft.
.TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 4 to 6 ft.
.WED...NE winds 5 to 10 kt. Seas 3 to 5 ft.
.WED NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft.
.THU AND THU NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI THROUGH SAT NIGHT...NE winds 5 to 10 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.

$$

ANZ251-270000-
Massachusetts Bay and Ipswich Bay-
701 AM EDT Tue Sep 26 2023

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

.TODAY...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft.
.TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 5 ft.
.WED...NE winds around 10 kt. Seas 2 to 4 ft.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft.
.THU AND THU NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI THROUGH SAT NIGHT...NE winds 5 to 10 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.

$$

ANZ231-270000-
Cape Cod Bay-
701 AM EDT Tue Sep 26 2023

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 4 ft.
.WED...NE winds around 10 kt. Seas 2 to 3 ft.
.WED NIGHT...E winds 5 to 10 kt. Seas around 2 ft.
.THU AND THU NIGHT...E winds 5 to 10 kt. Seas around 2 ft.
.FRI THROUGH SAT NIGHT...NE winds 5 to 10 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.

$$

ANZ254-270000-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
701 AM EDT Tue Sep 26 2023

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

.TODAY...NE winds 20 to 25 kt, diminishing to 15 to 20 kt this
afternoon. Gusts up to 30 kt. Seas 6 to 8 ft. A slight chance of
rain this morning.
.TONIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Gusts up to 25 kt. Seas 4 to 7 ft.
.WED...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to
6 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.THU AND THU NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft.
.FRI THROUGH SAT NIGHT...NE winds 10 to 15 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.

$$

ANZ255-270000-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
701 AM EDT Tue Sep 26 2023

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

.TODAY...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to
8 ft. A slight chance of rain.
.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
7 ft.
.WED...NE winds 15 to 20 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 5 ft.
.THU AND THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI THROUGH SAT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 5 ft. A chance of rain.
.SAT NIGHT...NE winds 10 to 15 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.

$$

ANZ256-270000-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
701 AM EDT Tue Sep 26 2023

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

.TODAY...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to
8 ft. A chance of rain, mainly this morning.
.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
8 ft.
.WED...NE winds 15 to 20 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 4 to 6 ft.
.THU AND THU NIGHT...E winds 10 to 15 kt with gusts up to 20 kt.
Seas 4 to 5 ft.
.FRI THROUGH SAT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 4 to 5 ft. A chance of rain.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
4 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.

$$

ANZ232-270000-
Nantucket Sound-
701 AM EDT Tue Sep 26 2023

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

.TODAY...NE winds 20 to 25 kt, diminishing to 15 to 20 kt this
afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. A slight chance of
rain this morning.
.TONIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Seas 3 to 5 ft.
.WED...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft.
.THU AND THU NIGHT...E winds around 10 kt. Seas 2 to 3 ft.
.FRI...E winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
rain.
.SAT AND SAT NIGHT...NE 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.

$$

ANZ233-270000-
Vineyard Sound-
701 AM EDT Tue Sep 26 2023

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

.TODAY...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
4 ft. A slight chance of rain this morning.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.WED...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.WED NIGHT...NE winds 10 to 15 kt. Seas around 2 ft.
.THU AND THU NIGHT...E winds around 10 kt. Seas around 2 ft.
.FRI THROUGH SAT...NE winds 10 to 15 kt. Seas around 2 ft. A
chance of rain.
.SAT NIGHT...NE winds around 10 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.

$$

ANZ234-270000-
Buzzards Bay-
701 AM EDT Tue Sep 26 2023

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

.TODAY...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. A slight chance of rain this morning.
.TONIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Seas 2 to 4 ft.
.WED...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas around 2 ft.
.WED NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas around 2 ft.
.THU AND THU NIGHT...E winds 5 to 10 kt. Seas around 2 ft.
.FRI...E winds 5 to 10 kt. Seas around 2 ft.
.FRI NIGHT...NE winds around 10 kt. Seas around 2 ft. A chance of
rain.
.SAT AND SAT NIGHT...NE winds 5 to 10 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.

$$

ANZ235-270000-
Rhode Island Sound-
701 AM EDT Tue Sep 26 2023

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...NE winds 20 to 25 kt, diminishing to 15 to 20 kt this
afternoon. Gusts up to 30 kt. Seas 4 to 5 ft. A slight chance of
rain this morning.
.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.WED...NE winds around 15 kt with gusts up to 20 kt. Seas 3 to
4 ft.
.WED NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 4 ft.
.THU AND THU NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI THROUGH SAT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. A chance of rain.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 3 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.

$$

ANZ237-270000-
Block Island Sound-
701 AM EDT Tue Sep 26 2023

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...NE winds 20 to 25 kt, diminishing to 15 to 20 kt this
afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. A chance of rain,
mainly this morning.
.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft.
.WED...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft.
.WED NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 4 ft.
.THU AND THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI THROUGH SAT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 4 ft. A chance of rain.
.SAT NIGHT...NE winds around 10 kt. Seas 3 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.

$$

ANZ230-270000-
Boston Harbor-
701 AM EDT Tue Sep 26 2023

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...NE winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to
3 ft.
.TONIGHT...NE winds 10 to 15 kt. Waves 2 to 3 ft in the evening,
then 1 foot or less.
.WED...NE winds around 10 kt. Waves 1 foot or less.
.WED NIGHT...NE winds 5 to 10 kt. Waves 1 foot or less.
.THU AND THU NIGHT...E winds 5 to 10 kt. Waves 1 foot or less.
.FRI THROUGH SAT NIGHT...N winds 5 to 10 kt.

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.

$$

ANZ236-270000-
Narragansett Bay-
701 AM EDT Tue Sep 26 2023

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...NE winds around 15 kt with gusts up to 25 kt. Waves 2 to
3 ft. A slight chance of rain this morning.
.TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Waves 2 to 3 ft.
.WED...NE winds around 10 kt. Waves 2 to 3 ft.
.WED NIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft.
.THU AND THU NIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft.
.FRI AND FRI NIGHT...NE winds 5 to 10 kt. A chance of rain.
.SAT AND SAT NIGHT...NE winds 5 to 10 kt.

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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