Sandy Bay Weather Center
Weather Center


X

ANZ230 Boston Harbor

Expires:202407280300;;385783
FZUS51 KBOX 271405
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1005 AM EDT Sat Jul 27 2024

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


ANZ230-280300-
Boston Harbor-
1005 AM EDT Sat Jul 27 2024

.THIS AFTERNOON...NE winds around 5 kt, becoming E. Waves 1 foot
or less. 
.TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Waves
1 foot or less. 
.SUN...SE winds around 5 kt, becoming E in the afternoon. Waves
1 foot or less. 
.SUN NIGHT...E winds 5 to 10 kt, becoming NE 10 to 15 kt after
midnight. Waves 1 foot or less. A chance of showers after
midnight. 
.MON...NE winds 5 to 10 kt. Waves 1 foot or less. A chance of
showers. 
.MON NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. A chance
of showers. 
.TUE THROUGH WED NIGHT...S winds 10 to 15 kt with gusts up to
20 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.

$$


	
X

ANZ231 Cape Cod Bay

		
Expires:202407280300;;385774
FZUS51 KBOX 271405
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1005 AM EDT Sat Jul 27 2024

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


ANZ231-280300-
Cape Cod Bay-
1005 AM EDT Sat Jul 27 2024

.THIS AFTERNOON...N winds around 5 kt, becoming E. Seas 1 foot or
less. Wave Detail: N 1 foot at 4 seconds and SE 1 foot at
8 seconds. 
.TONIGHT...S winds around 5 kt. Seas 1 foot or less. Wave Detail:
SW 1 foot at 2 seconds and E 1 foot at 4 seconds. Patchy fog
after midnight with vsby 1 to 3 NM. 
.SUN...SE winds around 5 kt, becoming E in the afternoon. Seas
1 foot or less. Wave Detail: NE 1 foot at 3 seconds and SE 1 foot
at 9 seconds. Patchy fog in the morning with vsby 1 to 3 NM. 
.SUN NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. Gusts up to 20 kt. Seas 1 foot or less. Wave Detail: E
1 foot at 2 seconds and SE 1 foot at 9 seconds. A chance of
showers. 
.MON...N winds 10 to 15 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 9 seconds and NE 1 foot at
2 seconds. A chance of showers in the morning. 
.MON NIGHT...SW winds around 10 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 8 seconds and S 1 foot at 2 seconds. 
.TUE THROUGH WED NIGHT...S 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.

$$


	        
X

ANZ232 Nantucket Sound

Expires:202407280300;;385778
FZUS51 KBOX 271405
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1005 AM EDT Sat Jul 27 2024

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


ANZ232-280300-
Nantucket Sound-
1005 AM EDT Sat Jul 27 2024

.THIS AFTERNOON...NE winds around 5 kt, becoming SE. Seas 1 foot
or less. Wave Detail: W 1 foot at 4 seconds and NE 1 foot at
5 seconds. 
.TONIGHT...S winds around 5 kt. Seas 1 foot or less. Wave Detail:
S 1 foot at 4 seconds and E 1 foot at 5 seconds. 
.SUN...E winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E
1 foot at 2 seconds and S 1 foot at 4 seconds. 
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas
around 2 ft. Wave Detail: E 1 foot at 3 seconds and SE 1 foot at
9 seconds. A chance of showers.
.MON...N winds 10 to 15 kt with gusts up to 20 kt, becoming SW in
the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds
and SE 2 ft at 9 seconds. A chance of showers in the morning. 
.MON NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 3 seconds and E 2 ft at 7 seconds. 
.TUE THROUGH WED...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. 
.WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 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

ANZ233 Vinyard Sound

Expires:202407280300;;385779
FZUS51 KBOX 271405
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1005 AM EDT Sat Jul 27 2024

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


ANZ233-280300-
Vineyard Sound-
1005 AM EDT Sat Jul 27 2024

.THIS AFTERNOON...NE winds around 5 kt, becoming S. Seas 1 foot
or less. Wave Detail: S 1 foot at 6 seconds and SE 1 foot at
12 seconds. 
.TONIGHT...S winds around 5 kt. Seas 1 foot or less. Wave Detail:
SW 1 foot at 5 seconds and SE 1 foot at 8 seconds. Patchy fog
after midnight with vsby 1 to 3 NM. 
.SUN...E winds around 5 kt, increasing to 5 to 10 kt in the
afternoon. Seas 1 foot or less. Wave Detail: SW 1 foot at
4 seconds and S 1 foot at 8 seconds. Patchy fog in the morning
with vsby 1 to 3 NM. 
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
1 foot or less. Wave Detail: SE 1 foot at 4 seconds and S 1 foot
at 9 seconds. A chance of showers. 
.MON AND MON NIGHT...SW winds around 10 kt. Seas around 2 ft.
Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. A
chance of showers. 
.TUE THROUGH WED...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and E 1 foot at
6 seconds. 
.WED NIGHT...SW 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.

$$


		                	
X

ANZ234 Buzzards Bay

Expires:202407280300;;385780
FZUS51 KBOX 271405
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1005 AM EDT Sat Jul 27 2024

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


ANZ234-280300-
Buzzards Bay-
1005 AM EDT Sat Jul 27 2024

.THIS AFTERNOON...NE winds around 5 kt, becoming S. Seas 1 foot
or less. Wave Detail: SW 1 foot at 5 seconds and NE 1 foot at
5 seconds. 
.TONIGHT...S winds around 5 kt. Seas 1 foot or less. Wave Detail:
SW 1 foot at 4 seconds and SE 1 foot at 8 seconds. Patchy fog
after midnight with vsby 1 to 3 NM. 
.SUN...E winds around 5 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: E 1 foot at 3 seconds and S 1 foot
at 4 seconds. Patchy fog in the morning with vsby 1 to 3 NM. 
.SUN NIGHT...NE winds 5 to 10 kt, becoming N 10 to 15 kt after
midnight. Gusts up to 20 kt. Seas 1 foot or less. Wave Detail: SE
1 foot at 3 seconds and SE 1 foot at 9 seconds. A chance of
showers. 
.MON AND MON NIGHT...SW winds around 10 kt. Seas around 2 ft.
Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 8 seconds. A
chance of showers. 
.TUE THROUGH WED...S winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds. 
.WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 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

ANZ235 Rhode Island Sound

Expires:202407280300;;385781
FZUS51 KBOX 271405
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1005 AM EDT Sat Jul 27 2024

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


ANZ235-280300-
Rhode Island Sound-
1005 AM EDT Sat Jul 27 2024

.THIS AFTERNOON...NE winds around 5 kt, becoming S around 5 kt.
Seas 1 foot or less. Wave Detail: S 1 foot at 7 seconds and SE
1 foot at 12 seconds. 
.TONIGHT...S winds around 5 kt. Seas 1 foot or less. Wave Detail:
S 1 foot at 7 seconds and SE 1 foot at 12 seconds. 
.SUN...E winds around 5 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: S 1 foot at 5 seconds and S 1 foot
at 8 seconds. Patchy fog in the morning with vsby 1 to 3 NM. 
.SUN NIGHT...NE winds 10 to 15 kt, becoming N after midnight.
Gusts up to 20 kt. Seas around 2 ft. Wave Detail: SE 2 ft at
3 seconds and SE 2 ft at 9 seconds. A chance of showers. 
.MON AND MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and SE 3 ft at
8 seconds. A chance of showers. 
.TUE THROUGH WED...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and E 1 foot at
6 seconds. 
.WED NIGHT...SW 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.

$$


		
X

ANZ236 Narragansett Bay

Expires:202407280300;;385784
FZUS51 KBOX 271405
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1005 AM EDT Sat Jul 27 2024

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


ANZ236-280300-
Narragansett Bay-
1005 AM EDT Sat Jul 27 2024

.THIS AFTERNOON...N winds around 5 kt, becoming S. Waves 1 foot
or less. 
.TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Waves
1 foot or less. 
.SUN...NE winds around 5 kt, becoming SE in the afternoon. Waves
1 foot or less. 
.SUN NIGHT...E winds 5 to 10 kt, becoming N with gusts up to
20 kt after midnight. Waves around 2 ft. A chance of showers
after midnight. 
.MON AND MON NIGHT...SW winds 5 to 10 kt. Waves 2 to 3 ft. A
chance of showers. 
.TUE AND TUE NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt.
Waves 2 to 3 ft. 
.WED AND WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt,
becoming SW 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.

$$

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

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston

			
X

ANZ237 Block Island Sound

Expires:202407280300;;385782
FZUS51 KBOX 271405
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1005 AM EDT Sat Jul 27 2024

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


ANZ237-280300-
Block Island Sound-
1005 AM EDT Sat Jul 27 2024

.THIS AFTERNOON...NE winds around 5 kt, becoming S. Seas 1 foot
or less. Wave Detail: SW 1 foot at 4 seconds and S 1 foot at
7 seconds. 
.TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
1 foot or less. Wave Detail: S 1 foot at 5 seconds and SE 1 foot
at 8 seconds. 
.SUN...NE winds around 5 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: S 1 foot at 5 seconds and SE 1 foot
at 8 seconds. 
.SUN NIGHT...NE winds 5 to 10 kt, becoming N 10 to 15 kt after
midnight. Gusts up to 20 kt. Seas around 2 ft. Wave Detail: SE
1 foot at 3 seconds and SE 1 foot at 9 seconds. A chance of
showers. 
.MON AND MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at
5 seconds. A chance of showers. 
.TUE AND TUE NIGHT...S winds around 10 kt. Gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SW 2 ft at
5 seconds. 
.WED AND WED NIGHT...S winds 10 to 15 kt. Gusts up to 20 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:202407280300;;385772
FZUS51 KBOX 271405
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1005 AM EDT Sat Jul 27 2024

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


ANZ250-280300-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1005 AM EDT Sat Jul 27 2024

.THIS AFTERNOON...N winds around 5 kt, becoming E. Seas 1 foot or
less. Wave Detail: NW 1 foot at 2 seconds and NE 1 foot at
5 seconds. 
.TONIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail:
W 1 foot at 2 seconds and NE 1 foot at 4 seconds. 
.SUN...SE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W
1 foot at 2 seconds and NE 1 foot at 3 seconds. 
.SUN NIGHT...E winds 5 to 10 kt, becoming NE 10 to 15 kt with
gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail:
SE 2 ft at 9 seconds and SE 1 foot at 3 seconds. A chance of
showers after midnight. 
.MON...NE winds 10 to 15 kt, becoming E in the afternoon. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and E 1 foot at
3 seconds. A chance of showers. 
.MON NIGHT...S winds around 10 kt. Seas 2 to 3 ft. Wave Detail:
SE 3 ft at 8 seconds and S 1 foot at 3 seconds. A chance of
showers in the evening. 
.TUE THROUGH WED NIGHT...S 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.

$$


	
X

ANZ251 Massachusetts Bay and Ipswich Bay

Expires:202407280300;;385773
FZUS51 KBOX 271405
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1005 AM EDT Sat Jul 27 2024

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


ANZ251-280300-
Massachusetts Bay and Ipswich Bay-
1005 AM EDT Sat Jul 27 2024

.THIS AFTERNOON...N winds around 5 kt, becoming SE. Seas 1 foot
or less. Wave Detail: W 1 foot at 2 seconds and NE 1 foot at
4 seconds. 
.TONIGHT...S winds 5 to 10 kt, diminishing to around 5 kt after
midnight. Seas 1 foot or less. Wave Detail: SE 1 foot at
3 seconds and SE 1 foot at 9 seconds. 
.SUN...SE winds around 5 kt, increasing to 5 to 10 kt in the
afternoon. Seas 1 foot or less. Wave Detail: E 1 foot at
3 seconds and SE 1 foot at 9 seconds. Patchy fog in the morning
with vsby 1 to 3 NM. 
.SUN NIGHT...E winds 5 to 10 kt, becoming NE 10 to 15 kt with
gusts up to 20 kt after midnight. Seas 1 foot or less. Wave
Detail: SE 1 foot at 3 seconds and SE 1 foot at 9 seconds. A
chance of showers after midnight. 
.MON...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 9 seconds and S 1 foot at 3 seconds. A chance of showers. 
.MON NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 8 seconds and S 1 foot at 3 seconds. A chance of showers.
.TUE AND TUE NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt. Seas
2 to 3 ft. 
.WED...S winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. A chance of showers. 
.WED NIGHT...S 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.

$$


		
X

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

 
Expires:202407280300;;385775
FZUS51 KBOX 271405
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1005 AM EDT Sat Jul 27 2024

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


ANZ254-280300-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1005 AM EDT Sat Jul 27 2024

.THIS AFTERNOON...N winds around 5 kt, becoming E around 5 kt.
Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and N 1 foot
at 4 seconds. 
.TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 9 seconds and NE 1 foot at 4 seconds. 
.SUN...E winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and N 1 foot
at 3 seconds. 
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 4 ft. Wave Detail: SE 3 ft at 9 seconds and E 1 foot at
3 seconds. A chance of showers. 
.MON...NE winds 10 to 15 kt with gusts up to 20 kt, becoming S in
the afternoon. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds
and S 2 ft at 3 seconds. A chance of showers in the morning. 
.MON NIGHT...S winds around 10 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 7 seconds and S 2 ft at 4 seconds. 
.TUE THROUGH WED NIGHT...S 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.

$$


		
X

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

Expires:202407280300;;385776
FZUS51 KBOX 271405
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1005 AM EDT Sat Jul 27 2024

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


ANZ255-280300-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1005 AM EDT Sat Jul 27 2024

.THIS AFTERNOON...NE winds around 5 kt, becoming SE. Seas around
2 ft. Wave Detail: S 2 ft at 7 seconds and NE 1 foot at
5 seconds. 
.TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail: S
2 ft at 7 seconds and E 1 foot at 5 seconds. 
.SUN...E winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: E
2 ft at 3 seconds and S 2 ft at 9 seconds. 
.SUN NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and E 2 ft at
3 seconds. A chance of showers. 
.MON...NW winds 10 to 15 kt with gusts up to 20 kt, becoming SW
in the afternoon. Seas 2 to 4 ft. Wave Detail: SE 4 ft at
8 seconds and NE 2 ft at 3 seconds. A chance of showers in the
morning. 
.MON NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail:
SW 3 ft at 5 seconds and E 3 ft at 7 seconds. 
.TUE THROUGH WED...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 4 ft. 
.WED NIGHT...S winds 10 to 15 kt with gusts up to 20 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.

$$


		
X

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

Expires:202407280300;;385777
FZUS51 KBOX 271405
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1005 AM EDT Sat Jul 27 2024

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


ANZ256-280300-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1005 AM EDT Sat Jul 27 2024

.THIS AFTERNOON...NE winds around 5 kt, becoming SE. Seas around
2 ft. Wave Detail: S 2 ft at 7 seconds. 
.TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail: S
2 ft at 7 seconds and SE 1 foot at 12 seconds. 
.SUN...E winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and SE 1 foot
at 4 seconds. 
.SUN NIGHT...NE winds 10 to 15 kt, becoming N after midnight.
Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at
9 seconds and E 2 ft at 3 seconds. A chance of showers. 
.MON AND MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and NE 2 ft at
3 seconds. A chance of showers. 
.TUE THROUGH WED...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds. 
.WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 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.

$$


		
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:202407280300;;385783
FZUS51 KBOX 271405
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1005 AM EDT Sat Jul 27 2024

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


ANZ230-280300-
Boston Harbor-
1005 AM EDT Sat Jul 27 2024

.THIS AFTERNOON...NE winds around 5 kt, becoming E. Waves 1 foot
or less. 
.TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Waves
1 foot or less. 
.SUN...SE winds around 5 kt, becoming E in the afternoon. Waves
1 foot or less. 
.SUN NIGHT...E winds 5 to 10 kt, becoming NE 10 to 15 kt after
midnight. Waves 1 foot or less. A chance of showers after
midnight. 
.MON...NE winds 5 to 10 kt. Waves 1 foot or less. A chance of
showers. 
.MON NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. A chance
of showers. 
.TUE THROUGH WED NIGHT...S winds 10 to 15 kt with gusts up to
20 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.

$$


		


  • 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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