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National Weather Service Marine Forecast FZUS51 KBOX

FZUS51 KBOX 221551
CWFBOX

Coastal Waters Forecast
National Weather Service Boston/Norton MA
1051 AM EST Tue Jan 22 2019

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

ANZ200-230415-
1051 AM EST Tue Jan 22 2019

Synopsis for Massachusetts and Rhode Island coastal waters

Arctic air and breezy NW winds will continue to diminish this
afternoon as high pressure builds over the waters. Widespread
moderate to heavy freezing spray will also diminish with the
diminishing wind. A sweeping area of low pressure late Wednesday
through Thursday with a soaking rain and gale force South winds.
Arctic air and high pressure Friday into Saturday.

For information on possible hazardous weather beyond the 24-36
hour forecast period, please visit www.weather.gov/boston and
follow the Current Hazards link above the map on the left.



ANZ250-230415-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1051 AM EST Tue Jan 22 2019

GALE WARNING IN EFFECT UNTIL 2 PM EST THIS AFTERNOON


THIS AFTERNOON
NW winds 20 to 25 kt with gusts up to 35 kt.
Seas around 10 ft, subsiding to 8 ft. Light freezing spray.

TONIGHT
NW winds 15 to 20 kt, becoming SW 10 to 15 kt after
midnight. Gusts up to 25 kt. Seas around 6 ft, subsiding to 3 ft
after midnight.

WED
S winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. Gusts up to 35 kt. Seas 5 to 6 ft. A chance of rain in
the afternoon.

WED NIGHT
SW winds 15 to 20 kt with gusts up to 35 kt. Seas
around 7 ft. Patchy fog. Rain.

THU
SW winds 20 to 25 kt with gusts up to 40 kt. Seas 8 to
9 ft. Patchy fog. Rain. Vsby 1 to 3 NM.

THU NIGHT
W winds 15 to 20 kt with gusts up to 30 kt. Seas
7 to 8 ft. Patchy fog in the evening. Rain likely in the evening.
Vsby 1 to 3 NM.

FRI
W winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to
7 ft.

FRI NIGHT
W winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Seas around 6 ft.

SAT
W winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to
6 ft.

SAT NIGHT
S winds 5 to 10 kt. Gusts up to 20 kt after
midnight. Seas 4 to 5 ft. A chance of snow showers after
midnight. 

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.



ANZ251-230415-
Massachusetts Bay and Ipswich Bay-
1051 AM EST Tue Jan 22 2019

SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EST THIS AFTERNOON


THIS AFTERNOON
NW winds 20 to 25 kt, diminishing to 15 to
20 kt. Gusts up to 30 kt. Seas around 5 ft. Freezing spray.

TONIGHT
W winds 10 to 15 kt, becoming SW 5 to 10 kt after
midnight. Gusts up to 20 kt. Seas 2 to 3 ft.

WED
S winds 10 to 15 kt, becoming SW 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 3 to 4 ft. A chance of rain in
the afternoon.

WED NIGHT
SW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 35 kt. Seas around 4 ft. Patchy fog.
Rain.

THU
SW winds 15 to 20 kt with gusts up to 35 kt. Seas around
5 ft. Patchy fog. Rain. Vsby 1 to 3 NM.

THU NIGHT
W winds 10 to 15 kt with gusts up to 25 kt. Seas
around 4 ft. A chance of rain in the evening with vsby 1 to 3 NM.

FRI
W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft.

FRI NIGHT
W winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas around 3 ft.

SAT
W winds 5 to 10 kt with gusts up to 20 kt. Seas around
3 ft.

SAT NIGHT
S winds 5 to 10 kt. Seas around 3 ft. A chance of
snow showers after midnight. 

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.



ANZ231-230415-
Cape Cod Bay-
1051 AM EST Tue Jan 22 2019

SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EST THIS AFTERNOON


THIS AFTERNOON
NW winds 20 to 25 kt with gusts up to 30 kt.
Seas 6 to 7 ft. Freezing spray.

TONIGHT
NW winds 10 to 15 kt with gusts up to 25 kt, becoming
SW 5 to 10 kt after midnight. Seas around 4 ft, subsiding to 2 ft
after midnight.

WED
S winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 4 to 5 ft. A chance of rain in
the afternoon.

WED NIGHT
SW winds 15 to 20 kt with gusts up to 35 kt. Seas
around 5 ft. Patchy fog. Rain.

THU
S winds 20 to 25 kt, becoming SW 15 to 20 kt in the
afternoon. Gusts up to 45 kt. Seas around 6 ft. Patchy fog. Rain.
Vsby 1 to 3 NM.

THU NIGHT
W winds 10 to 15 kt with gusts up to 30 kt. Seas
around 4 ft. Patchy fog in the evening. Rain likely in the
evening. Vsby 1 to 3 NM.

FRI
W winds 10 to 15 kt with gusts up to 20 kt. Seas around
3 ft.

FRI NIGHT
W winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas around 3 ft.

SAT
W winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas around 3 ft.

SAT NIGHT
SW winds 5 to 10 kt, becoming SE after midnight.
Seas around 3 ft. A chance of snow showers after midnight. 

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.



ANZ254-230415-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1051 AM EST Tue Jan 22 2019

GALE WARNING IN EFFECT UNTIL 2 PM EST THIS AFTERNOON


THIS AFTERNOON
NW winds 20 to 25 kt with gusts up to 35 kt.
Seas 10 to 11 ft. Light freezing spray.

TONIGHT
NW winds 15 to 20 kt, becoming SW 5 to 10 kt after
midnight. Gusts up to 25 kt. Seas around 7 ft, subsiding to 4 ft
after midnight.

WED
S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to
5 ft.

WED NIGHT
S winds 15 to 20 kt with gusts up to 35 kt. Seas
7 to 8 ft. Patchy fog. Rain likely.

THU
S winds 20 to 25 kt with gusts up to 45 kt. Seas 11 to
12 ft. Patchy fog. Rain. Vsby 1 to 3 NM in the afternoon.

THU NIGHT
W winds 15 to 20 kt. Gusts up to 35 kt, decreasing
to 25 kt after midnight. Seas around 10 ft, except 13 to 14 ft S
and E of Nantucket. Patchy fog in the evening. Rain likely in the
evening.

FRI
W winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 8 to 9 ft.

FRI NIGHT
W winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Seas around 7 ft.

SAT
W winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Gusts up to 20 kt. Seas around 6 ft.

SAT NIGHT
SW winds 5 to 10 kt, becoming SE after midnight.
Seas around 5 ft. A chance of snow showers after midnight. 

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.



ANZ255-230415-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1051 AM EST Tue Jan 22 2019

GALE WARNING IN EFFECT UNTIL 2 PM EST THIS AFTERNOON


THIS AFTERNOON
NW winds 20 to 25 kt with gusts up to 35 kt.
Seas around 8 ft. Light freezing spray.

TONIGHT
NW winds 10 to 15 kt, becoming SW 5 to 10 kt after
midnight. Gusts up to 20 kt. Seas around 5 ft, subsiding to 3 ft
after midnight.

WED
SW winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to
6 ft.

WED NIGHT
S winds 15 to 20 kt with gusts up to 35 kt. Seas
around 8 ft, building to 10 ft after midnight. Patchy fog. A
chance of rain in the evening. Rain likely after midnight.

THU
SW winds 20 to 25 kt. Gusts up to 40 kt, increasing to
50 kt in the afternoon. Seas 13 to 14 ft. Patchy fog. Rain. Vsby
1 to 3 NM.

THU NIGHT
W winds 10 to 15 kt with gusts up to 35 kt, becoming
NW 15 to 20 kt with gusts up to 25 kt after midnight. Seas 12 to
13 ft. Patchy fog in the evening. Rain likely in the evening.

FRI
W winds 15 to 20 kt with gusts up to 30 kt. Seas 9 to
10 ft.

FRI NIGHT
NW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 8 ft.

SAT
W winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas around 7 ft.

SAT NIGHT
SW winds 5 to 10 kt, becoming SE after midnight.
Seas 4 to 5 ft. A chance of snow showers after midnight. 

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.



ANZ256-230415-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1051 AM EST Tue Jan 22 2019

GALE WARNING IN EFFECT UNTIL 2 PM EST THIS AFTERNOON


THIS AFTERNOON
NW winds 20 to 25 kt, diminishing to 15 to
20 kt. Gusts up to 30 kt. Seas 6 to 7 ft. Light freezing spray.

TONIGHT
W winds 10 to 15 kt, becoming SW after midnight. Gusts
up to 20 kt. Seas around 3 ft.

WED
SW winds 15 to 20 kt with gusts up to 30 kt. Seas around
6 ft. A chance of rain in the afternoon.

WED NIGHT
SW winds 15 to 20 kt, becoming S 20 to 25 kt after
midnight. Gusts up to 40 kt. Seas around 8 ft, building to 10 ft
after midnight. Patchy fog. Rain.

THU
S winds 25 to 30 kt, becoming SW 20 to 25 kt in the
afternoon. Gusts up to 45 kt. Seas 14 to 15 ft. Patchy fog. Rain.
Vsby 1 to 3 NM.

THU NIGHT
NW winds 15 to 20 kt with gusts up to 30 kt. Seas
around 13 ft, subsiding to 11 ft after midnight. Patchy fog in
the evening. A chance of rain in the evening.

FRI
W winds 15 to 20 kt with gusts up to 30 kt. Seas 9 to
10 ft.

FRI NIGHT
NW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Seas 7 to 8 ft.

SAT
W winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas around 7 ft.

SAT NIGHT
S winds 5 to 10 kt. Gusts up to 20 kt after
midnight. Seas around 5 ft. A chance of snow showers. Vsby 1 to
3 NM. 

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.



ANZ232-230415-
Nantucket Sound-
1051 AM EST Tue Jan 22 2019

SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EST THIS AFTERNOON


THIS AFTERNOON
NW winds 20 to 25 kt, diminishing to 15 to
20 kt. Gusts up to 35 kt, decreasing to 30 kt. Seas around 4 ft.
Freezing spray.

TONIGHT
NW winds 10 to 15 kt, becoming SW 5 to 10 kt after
midnight. Gusts up to 20 kt. Seas around 2 ft.

WED
SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas around 3 ft.

WED NIGHT
S winds 15 to 20 kt with gusts up to 35 kt. Seas
4 to 5 ft. Patchy fog. Rain likely.

THU
SW winds 20 to 25 kt with gusts up to 45 kt. Seas around
6 ft. Patchy fog. Rain. Vsby 1 to 3 NM.

THU NIGHT
W winds 10 to 15 kt with gusts up to 30 kt. Seas
around 6 ft. Patchy fog in the evening. Rain likely in the
evening with vsby 1 to 3 NM.

FRI
W winds 10 to 15 kt with gusts up to 25 kt. Seas around
5 ft.

FRI NIGHT
W winds 10 to 15 kt with gusts up to 20 kt. Seas
around 4 ft.

SAT
W winds 5 to 10 kt. Seas around 4 ft.

SAT NIGHT
SW winds 5 to 10 kt, becoming SE after midnight.
Seas around 3 ft. A chance of snow showers after midnight. 

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.



ANZ233-230415-
Vineyard Sound-
1051 AM EST Tue Jan 22 2019

SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EST THIS AFTERNOON


THIS AFTERNOON
NW winds 15 to 20 kt with gusts up to 30 kt.
Seas around 3 ft. Freezing spray.

TONIGHT
NW winds 5 to 10 kt, becoming SW after midnight. Gusts
up to 20 kt. Seas around 2 ft.

WED
SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to
5 ft. A chance of rain in the afternoon.

WED NIGHT
SW winds 15 to 20 kt. Gusts up to 30 kt, increasing
to 40 kt after midnight. Seas 6 to 7 ft. Patchy fog. Rain.

THU
SW winds 20 to 25 kt with gusts up to 45 kt. Seas 8 to
9 ft. Patchy fog. Rain. Vsby 1 to 3 NM.

THU NIGHT
W winds 10 to 15 kt with gusts up to 30 kt. Seas
around 7 ft. Patchy fog in the evening. A chance of rain in the
evening.

FRI
W winds 10 to 15 kt with gusts up to 25 kt. Seas around
6 ft.

FRI NIGHT
W winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas around 5 ft.

SAT
W winds 5 to 10 kt. Seas around 4 ft.

SAT NIGHT
SW winds 5 to 10 kt, becoming SE after midnight.
Seas around 3 ft. A chance of snow showers after midnight. 

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.



ANZ234-230415-
Buzzards Bay-
1051 AM EST Tue Jan 22 2019

SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EST THIS AFTERNOON


THIS AFTERNOON
NW winds 15 to 20 kt, diminishing to 10 to
15 kt. Gusts up to 30 kt. Seas around 3 ft. Freezing spray.

TONIGHT
W winds 5 to 10 kt, becoming SW with gusts up to 20 kt
after midnight. Seas 1 foot or less.

WED
SW winds 10 to 15 kt with gusts up to 30 kt. Seas around
4 ft. A chance of rain in the afternoon.

WED NIGHT
SW winds 15 to 20 kt. Gusts up to 30 kt, increasing
to 40 kt after midnight. Seas 5 to 6 ft. Patchy fog. Rain.

THU
S winds 20 to 25 kt, becoming SW 15 to 20 kt in the
afternoon. Gusts up to 40 kt. Seas around 6 ft. Patchy fog. Rain.
Vsby 1 to 3 NM.

THU NIGHT
W winds 10 to 15 kt with gusts up to 30 kt. Seas
around 5 ft. Patchy fog in the evening. A chance of rain in the
evening.

FRI
W winds 10 to 15 kt with gusts up to 20 kt. Seas around
4 ft.

FRI NIGHT
W winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas around 4 ft.

SAT
W winds 5 to 10 kt. Seas 3 to 4 ft.

SAT NIGHT
SW winds 5 to 10 kt, becoming SE after midnight.
Seas around 3 ft. A chance of snow showers after midnight. 

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.



ANZ235-230415-
Rhode Island Sound-
1051 AM EST Tue Jan 22 2019

SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EST THIS AFTERNOON


THIS AFTERNOON
NW winds 15 to 20 kt with gusts up to 30 kt.
Seas around 4 ft. Light freezing spray.

TONIGHT
W winds 10 to 15 kt, becoming SW after midnight. Gusts
up to 20 kt. Seas 2 to 3 ft.

WED
SW winds 15 to 20 kt with gusts up to 30 kt. Seas around
5 ft. A chance of rain in the afternoon.

WED NIGHT
SW winds 15 to 20 kt with gusts up to 40 kt. Seas
around 7 ft, building to 9 ft after midnight. Patchy fog. Rain.

THU
S winds 25 to 30 kt, becoming SW 20 to 25 kt in the
afternoon. Gusts up to 40 kt. Seas 11 to 12 ft. Patchy fog. Rain.
Vsby 1 to 3 NM.

THU NIGHT
NW winds 10 to 15 kt with gusts up to 30 kt. Seas
around 11 ft, subsiding to 9 ft after midnight. Patchy fog in the
evening. A chance of rain in the evening.

FRI
W winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas around 8 ft.

FRI NIGHT
W winds 10 to 15 kt with gusts up to 20 kt. Seas
around 7 ft.

SAT
W winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas
5 to 6 ft.

SAT NIGHT
SW winds 5 to 10 kt, becoming SE with gusts up to
20 kt after midnight. Seas around 4 ft. A chance of snow showers.
Vsby 1 to 3 NM. 

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.



ANZ237-230415-
Block Island Sound-
1051 AM EST Tue Jan 22 2019

SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EST THIS AFTERNOON


THIS AFTERNOON
NW winds 15 to 20 kt, diminishing to 10 to
15 kt. Gusts up to 30 kt. Seas 3 to 4 ft. Light freezing spray.

TONIGHT
W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts
up to 20 kt after midnight. Seas 2 to 3 ft.

WED
SW winds 10 to 15 kt with gusts up to 30 kt. Seas around
5 ft. A chance of rain in the afternoon.

WED NIGHT
SW winds 15 to 20 kt. Gusts up to 30 kt, increasing
to 40 kt after midnight. Seas 7 to 8 ft. Patchy fog. Rain.

THU
S winds 20 to 25 kt, becoming W 15 to 20 kt in the
afternoon. Gusts up to 40 kt. Seas around 10 ft. Patchy fog.
Rain. Vsby 1 to 3 NM.

THU NIGHT
NW winds 10 to 15 kt with gusts up to 30 kt. Seas
9 to 10 ft. Patchy fog in the evening. A chance of rain in the
evening.

FRI
W winds 10 to 15 kt with gusts up to 25 kt. Seas around
7 ft.

FRI NIGHT
W winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas around 6 ft.

SAT
W winds 5 to 10 kt. Seas around 5 ft.

SAT NIGHT
SW winds 5 to 10 kt, becoming SE after midnight.
Seas around 4 ft. A chance of snow showers. Vsby 1 to 3 NM. 

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.



ANZ230-230415-
Boston Harbor-
1051 AM EST Tue Jan 22 2019

SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EST THIS AFTERNOON


THIS AFTERNOON
NW winds 15 to 20 kt with gusts up to 30 kt.
Waves around 2 ft.

TONIGHT
W winds 5 to 10 kt, becoming SW after midnight. Waves
around 2 ft in the evening, then 1 foot or less.

WED
S winds 5 to 10 kt, becoming SW 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Waves around 2 ft. A chance of rain
in the afternoon.

WED NIGHT
SW winds 10 to 15 kt with gusts up to 30 kt. Waves
around 2 ft. Patchy fog. Rain.

THU
SW winds 10 to 15 kt with gusts up to 30 kt. Waves around
2 ft. Patchy fog. Rain. Vsby 1 to 3 NM.

THU NIGHT
W winds around 10 kt with gusts up to 25 kt. Waves
around 2 ft. A chance of rain in the evening.

FRI
W winds around 10 kt. Gusts up to 20 kt in the afternoon.
Waves around 2 ft.

FRI NIGHT
W winds 5 to 10 kt. Waves around 2 ft in the
evening, then 1 foot or less.

SAT
SW winds 5 to 10 kt. Waves 1 foot or less.

SAT NIGHT
S winds 5 to 10 kt. Waves 1 foot or less, then
around 2 ft after midnight. A chance of snow showers after
midnight. 

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.



ANZ236-230415-
Narragansett Bay-
1051 AM EST Tue Jan 22 2019

SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EST THIS AFTERNOON


THIS AFTERNOON
NW winds 10 to 15 kt with gusts up to 30 kt.
Waves 2 to 3 ft.

TONIGHT
W winds 5 to 10 kt, becoming SW with gusts up to 20 kt
after midnight. Waves 1 foot or less, then around 2 ft after
midnight.

WED
SW winds 10 to 15 kt with gusts up to 25 kt. Waves 3 to
4 ft. A chance of rain in the afternoon.

WED NIGHT
SW winds 10 to 15 kt. Gusts up to 30 kt, increasing
to 40 kt after midnight. Waves around 5 ft, building to 7 ft
after midnight. Patchy fog. Rain.

THU
SW winds 15 to 20 kt with gusts up to 40 kt. Waves around
8 ft. Patchy fog. Rain. Vsby 1 to 3 NM.

THU NIGHT
NW winds 5 to 10 kt with gusts up to 30 kt. Waves
around 3 ft, except 7 to 8 ft at the bay entrance. Patchy fog in
the evening. A chance of rain in the evening.

FRI
W winds 10 to 15 kt with gusts up to 20 kt. Waves 4 to
5 ft.

FRI NIGHT
W winds 5 to 10 kt. Waves around 3 ft.

SAT
W winds 5 to 10 kt. Waves around 3 ft.

SAT NIGHT
S winds around 5 kt, becoming SE after midnight.
Waves around 3 ft. A chance of snow showers after midnight. 

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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