Sandy Bay Weather Center
Weather Center


X

ANZ230 Boston Harbor

Expires:202407192100;;292464
FZUS51 KBOX 190805
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
405 AM EDT Fri Jul 19 2024

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


ANZ230-192100-
Boston Harbor-
405 AM EDT Fri Jul 19 2024

.TODAY...N winds 5 to 10 kt, becoming E this afternoon. Waves
1 foot or less. 
.TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Waves
1 foot or less. 
.SAT...SW winds 5 to 10 kt. Waves 1 foot or less. 
.SAT NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. 
.SUN...W winds 5 to 10 kt, becoming SW in the afternoon. Waves
1 foot or less. 
.SUN NIGHT...SW winds around 5 kt, becoming N after midnight.
Waves 1 foot or less. 
.MON AND MON NIGHT...E winds 5 to 10 kt, becoming S. Waves 1 foot
or less. 
.TUE AND TUE NIGHT...E winds 5 to 10 kt. Waves 1 foot or less. 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.

$$


	
X

ANZ231 Cape Cod Bay

		
Expires:202407192100;;292455
FZUS51 KBOX 190805
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
405 AM EDT Fri Jul 19 2024

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


ANZ231-192100-
Cape Cod Bay-
405 AM EDT Fri Jul 19 2024

.TODAY...N winds 5 to 10 kt, becoming NE this afternoon. Seas
around 2 ft this morning, then 1 foot or less. Wave Detail: SE
2 ft at 8 seconds and N 1 foot at 3 seconds, becoming N 1 foot at
3 seconds and SE 1 foot at 8 seconds. 
.TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail:
W 1 foot at 3 seconds and N 1 foot at 4 seconds. 
.SAT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W
1 foot at 2 seconds and N 1 foot at 4 seconds. 
.SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft in the
evening, then 1 foot or less. Wave Detail: SW 1 foot at 3 seconds
and SE 1 foot at 7 seconds, becoming SW 1 foot at 2 seconds and
SE 1 foot at 7 seconds. 
.SUN...W winds 5 to 10 kt, becoming S in the afternoon. Seas
1 foot or less. Wave Detail: W 1 foot at 2 seconds and SE 1 foot
at 7 seconds. 
.SUN NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and SE
1 foot at 6 seconds. 
.MON THROUGH TUE...SE winds 5 to 10 kt. Seas 1 foot or less. 
.TUE NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. 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.

$$


	        
X

ANZ232 Nantucket Sound

Expires:202407192100;;292459
FZUS51 KBOX 190805
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
405 AM EDT Fri Jul 19 2024

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


ANZ232-192100-
Nantucket Sound-
405 AM EDT Fri Jul 19 2024

.TODAY...N winds 10 to 15 kt, becoming NE 5 to 10 kt this
afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft at 3 seconds and S
2 ft at 8 seconds. 
.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
1 foot at 3 seconds and NE 1 foot at 4 seconds. 
.SAT...W winds 5 to 10 kt, becoming SW 10 to 15 kt in the
afternoon. Seas 1 foot or less, then around 2 ft in the
afternoon. Wave Detail: W 1 foot at 3 seconds and N 1 foot at
4 seconds, becoming SW 2 ft at 3 seconds and N 1 foot at
3 seconds. 
.SAT NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 3 seconds and S 1 foot at 7 seconds. 
.SUN AND SUN NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: W 1 foot at 3 seconds and SE 1 foot at 7 seconds. 
.MON AND MON NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: NE 1 foot at 2 seconds and W 1 foot at 3 seconds. 
.TUE AND TUE NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less,
then 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.

$$


	                	
X

ANZ233 Vinyard Sound

Expires:202407192100;;292460
FZUS51 KBOX 190805
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
405 AM EDT Fri Jul 19 2024

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


ANZ233-192100-
Vineyard Sound-
405 AM EDT Fri Jul 19 2024

.TODAY...N winds 10 to 15 kt, becoming SW 5 to 10 kt this
afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and N
1 foot at 3 seconds. 
.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 7 seconds and SW 1 foot at 2 seconds. 
.SAT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 3 seconds and S 2 ft at 7 seconds. 
.SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 6 seconds and SW 1 foot at 3 seconds. 
.SUN...SW winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft
in the afternoon. Wave Detail: SW 1 foot at 3 seconds and S
1 foot at 7 seconds. 
.SUN NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at
3 seconds. 
.MON AND MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft. 
.TUE AND TUE NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less,
then 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.

$$


		                	
X

ANZ234 Buzzards Bay

Expires:202407192100;;292461
FZUS51 KBOX 190805
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
405 AM EDT Fri Jul 19 2024

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


ANZ234-192100-
Buzzards Bay-
405 AM EDT Fri Jul 19 2024

.TODAY...N winds 5 to 10 kt, becoming S this afternoon. Seas
around 2 ft. Wave Detail: SW 2 ft at 7 seconds and N 1 foot at
3 seconds. 
.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 7 seconds and SW 1 foot at 3 seconds. 
.SAT...SW winds 5 to 10 kt, increasing to 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: W 1 foot at 3 seconds and S
1 foot at 7 seconds, becoming SW 2 ft at 3 seconds and S 1 foot
at 6 seconds. 
.SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave
Detail: SW 2 ft at 3 seconds and S 1 foot at 6 seconds. 
.SUN...SW winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft
in the afternoon. Wave Detail: SW 1 foot at 3 seconds and S
1 foot at 7 seconds. 
.SUN NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at
3 seconds. 
.MON AND MON NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. 
.TUE AND TUE NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. 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.

$$


		              	
X

ANZ235 Rhode Island Sound

Expires:202407192100;;292462
FZUS51 KBOX 190805
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
405 AM EDT Fri Jul 19 2024

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


ANZ235-192100-
Rhode Island Sound-
405 AM EDT Fri Jul 19 2024

.TODAY...N winds 10 to 15 kt, becoming SW 5 to 10 kt this
afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds and N
1 foot at 3 seconds. 
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 7 seconds and NE 1 foot at 3 seconds. 
.SAT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 3 seconds and S 2 ft at 7 seconds. 
.SAT NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas around 2 ft. Wave Detail: S 2 ft at
7 seconds and SW 1 foot at 3 seconds. 
.SUN...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft
at 7 seconds and W 1 foot at 3 seconds. 
.SUN NIGHT...SW winds around 10 kt, becoming W after midnight.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 2 ft at
3 seconds. 
.MON AND MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft. 
.TUE AND TUE NIGHT...SE winds 5 to 10 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.

$$


		
X

ANZ236 Narragansett Bay

Expires:202407192100;;292465
FZUS51 KBOX 190805
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
405 AM EDT Fri Jul 19 2024

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


ANZ236-192100-
Narragansett Bay-
405 AM EDT Fri Jul 19 2024

.TODAY...N winds 5 to 10 kt, becoming SW this afternoon. Waves
2 to 3 ft. 
.TONIGHT...SW winds 5 to 10 kt. Waves around 2 ft. 
.SAT...SW winds 5 to 10 kt. Waves around 2 ft. 
.SAT NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. 
.SUN...SW winds 5 to 10 kt. Waves around 2 ft. 
.SUN NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Waves around 2 ft. 
.MON AND MON NIGHT...SE winds 5 to 10 kt, becoming SW. Waves
around 2 ft. 
.TUE AND TUE NIGHT...SE 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.

$$

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

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www.facebook.com/NWSBoston

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@NWSBoston

			
X

ANZ237 Block Island Sound

Expires:202407192100;;292463
FZUS51 KBOX 190805
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
405 AM EDT Fri Jul 19 2024

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


ANZ237-192100-
Block Island Sound-
405 AM EDT Fri Jul 19 2024

.TODAY...N winds 10 to 15 kt, becoming SW 5 to 10 kt this
afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and N
1 foot at 3 seconds. 
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 7 seconds and SW 1 foot at 3 seconds. 
.SAT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft
at 7 seconds and W 1 foot at 2 seconds. 
.SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 7 seconds and W 1 foot at 3 seconds. 
.SUN...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds and W 1 foot at 3 seconds. 
.SUN NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at
3 seconds. 
.MON...SE winds 5 to 10 kt. Seas around 2 ft. 
.MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft. A chance of
showers. 
.TUE...SE winds 5 to 10 kt. Seas around 2 ft. A chance of
showers. 
.TUE NIGHT...SE winds 5 to 10 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.

$$


			
X

ANZ250 Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary

Expires:202407192100;;292453
FZUS51 KBOX 190805
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
405 AM EDT Fri Jul 19 2024

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


ANZ250-192100-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
405 AM EDT Fri Jul 19 2024

.TODAY...N winds 5 to 10 kt, becoming S this afternoon. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 9 seconds and N 2 ft at 3 seconds. 
.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 8 seconds and W 1 foot at 3 seconds. 
.SAT...SW winds 5 to 10 kt, becoming S in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 9 seconds and SW 1 foot at
3 seconds. 
.SAT NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE
2 ft at 9 seconds. 
.SUN...W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to
3 ft. Wave Detail: W 2 ft at 3 seconds and SE 2 ft at 9 seconds. 
.SUN NIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 9 seconds and SW 1 foot at
3 seconds. 
.MON THROUGH TUE...SE winds 5 to 10 kt. Seas around 2 ft. 
.TUE NIGHT...SE winds 5 to 10 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.

$$


	
X

ANZ251 Massachusetts Bay and Ipswich Bay

Expires:202407192100;;292454
FZUS51 KBOX 190805
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
405 AM EDT Fri Jul 19 2024

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


ANZ251-192100-
Massachusetts Bay and Ipswich Bay-
405 AM EDT Fri Jul 19 2024

.TODAY...NW winds 5 to 10 kt, becoming SE this afternoon. Seas
1 foot or less. Wave Detail: N 1 foot at 3 seconds and SE 1 foot
at 9 seconds. 
.TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and SW 1 foot at
2 seconds. 
.SAT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW
1 foot at 2 seconds and NE 1 foot at 3 seconds. 
.SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 7 seconds and SW 1 foot at 3 seconds. 
.SUN...W winds 5 to 10 kt, becoming S in the afternoon. Seas
around 2 ft in the morning, then 1 foot or less. Wave Detail: W
1 foot at 2 seconds and SE 1 foot at 9 seconds. 
.SUN NIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas
1 foot or less. Wave Detail: SW 1 foot at 2 seconds and SE 1 foot
at 9 seconds. 
.MON AND MON NIGHT...NE winds 5 to 10 kt, becoming S. Seas 1 foot
or less, then around 2 ft. 
.TUE AND TUE NIGHT...SE winds 5 to 10 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.

$$


		
X

ANZ254 Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM

 
Expires:202407192100;;292456
FZUS51 KBOX 190805
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
405 AM EDT Fri Jul 19 2024

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


ANZ254-192100-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
405 AM EDT Fri Jul 19 2024

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

.TODAY...N winds 10 to 15 kt, diminishing to 5 to 10 kt this
afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds and N
2 ft at 4 seconds. 
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 8 seconds and N 1 foot at 4 seconds. 
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 7 seconds and NW 1 foot at 4 seconds. 
.SAT NIGHT...SW winds around 10 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW
1 foot at 3 seconds. 
.SUN AND SUN NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 7 seconds and W 1 foot at 3 seconds. 
.MON THROUGH TUE...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: S 3 ft at 8 seconds and W 1 foot at 3 seconds. 
.TUE NIGHT...SE winds 5 to 10 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.

$$


		
X

ANZ255 Coastal waters extending out to 25 NM south of Martha’s Vineyard and Nantucket

Expires:202407192100;;292457
FZUS51 KBOX 190805
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
405 AM EDT Fri Jul 19 2024

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


ANZ255-192100-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
405 AM EDT Fri Jul 19 2024

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

.TODAY...N winds 10 to 15 kt, becoming NE 5 to 10 kt this
afternoon. Seas 3 to 5 ft. Wave Detail: S 5 ft at 8 seconds and N
2 ft at 3 seconds. 
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 7 seconds and NE 1 foot at 4 seconds. 
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 7 seconds and W 1 foot at 3 seconds. 
.SAT NIGHT...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail:
S 3 ft at 7 seconds and SW 1 foot at 3 seconds. 
.SUN AND SUN NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: S 3 ft at 7 seconds and W 1 foot at 3 seconds. 
.MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 8 seconds and SW 2 ft at 5 seconds. 
.MON NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers. 
.TUE AND TUE NIGHT...SE winds 5 to 10 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.

$$


		
X

ANZ256 Coastal waters from Montauk NY to Martha’s Vineyard extending out to 20 NM south of Block Island

Expires:202407192100;;292458
FZUS51 KBOX 190805
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
405 AM EDT Fri Jul 19 2024

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


ANZ256-192100-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
405 AM EDT Fri Jul 19 2024

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

.TODAY...N winds 10 to 15 kt, becoming W 5 to 10 kt this
afternoon. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds and N
1 foot at 3 seconds. 
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 7 seconds and NE 1 foot at 3 seconds. 
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 7 seconds and W 1 foot at 2 seconds. 
.SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 8 seconds and SW 1 foot at 3 seconds. 
.SUN AND SUN NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: S 3 ft at 7 seconds and W 1 foot at 3 seconds. 
.MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 8 seconds and SW 2 ft at 5 seconds. 
.MON NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers. 
.TUE AND TUE NIGHT...SE winds 5 to 10 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.

$$


		
X

ANZ270 Ocean waters from Merrimack River to Plymouth from 40 to 60 NM offshore

			
X

ANZ271 Ocean waters from Provincetown to Nantucket from 20 to 35 NM offshore

		
X

ANZ272 Ocean waters from Martha’s Vineyard to Nantucket from 25 to 40 NM offshore

		
X

ANZ273 Ocean waters from Montauk NY to Martha’s Vineyard from 25 to 40 NM offshore

 
		
X

ANZ230 Boston Harbor

 
Expires:202407192100;;292464
FZUS51 KBOX 190805
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
405 AM EDT Fri Jul 19 2024

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


ANZ230-192100-
Boston Harbor-
405 AM EDT Fri Jul 19 2024

.TODAY...N winds 5 to 10 kt, becoming E this afternoon. Waves
1 foot or less. 
.TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Waves
1 foot or less. 
.SAT...SW winds 5 to 10 kt. Waves 1 foot or less. 
.SAT NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. 
.SUN...W winds 5 to 10 kt, becoming SW in the afternoon. Waves
1 foot or less. 
.SUN NIGHT...SW winds around 5 kt, becoming N after midnight.
Waves 1 foot or less. 
.MON AND MON NIGHT...E winds 5 to 10 kt, becoming S. Waves 1 foot
or less. 
.TUE AND TUE NIGHT...E winds 5 to 10 kt. Waves 1 foot or less. 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.

$$


		


  • Click on a zone to display the forecast for that area.
ANZ230 Boston Harbor ANZ231 Cape Cod Bay ANZ232 Nantucket Sound ANZ233 Vinyard Sound ANZ234 Buzzards Bay ANZ235 Rhode Island Sound ANZ236 Narragansett Bay ANZ237 Block Island Sound ANZ250 Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary ANZ251 Massachusetts Bay and Ipswich Bay ANZ254 Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM ANZ255 Coastal waters extending out to 25 NM south of Martha’s Vineyard and Nantucket ANZ256 Coastal waters from Montauk NY to Martha’s Vineyard extending out to 20 NM south of Block Island ANZ270 Ocean waters from Merrimack River to Plymouth from 40 to 60 NM offshore ANZ271 Ocean waters from Provincetown to Nantucket from 20 to 35 NM offshore ANZ272 Ocean waters from Martha’s Vineyard to Nantucket from 25 to 40 NM offshore ANZ273 Ocean waters from Montauk NY to Martha’s Vineyard from 25 to 40 NM offshore ANZ230 Boston Harbor ANZ231 Cape Cod Bay ANZ232 Nantucket Sound ANZ233 Vinyard Sound ANZ234 Buzzards Bay ANZ235 Rhode Island Sound ANZ236 Narragansett Bay ANZ237 Block Island Sound ANZ250 Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary ANZ251 Massachusetts Bay and Ipswich Bay ANZ254 Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM ANZ255 Coastal waters extending out to 25 NM south of Martha’s Vineyard and Nantucket ANZ256 Coastal waters from Montauk NY to Martha’s Vineyard extending out to 20 NM south of Block Island ANZ270 Ocean waters from Merrimack River to Plymouth from 40 to 60 NM offshore ANZ271 Ocean waters from Provincetown to Nantucket from 20 to 35 NM offshore ANZ272 Ocean waters from Martha’s Vineyard to Nantucket from 25 to 40 NM offshore ANZ273 Ocean waters from Montauk NY to Martha’s Vineyard from 25 to 40 NM offshore

 

 



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