Coastal Waters Forecast
Issued by NWS Boston, MA

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FZUS51 KBOX 022016
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
416 PM EDT Thu Apr 2 2020

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

ANZ200-030900-
416 PM EDT Thu Apr 2 2020

.Synopsis for Massachusetts and Rhode Island coastal waters...
A large and intense ocean storm well east of the waters will
gradually pinwheel back toward the coast this evening.
This storm will bring gale to storm force winds to the waters
tonight and Friday along with large seas.

The system will move south and away from the waters off the shore of
Southern New England tomorrow night. Weak high pressure will build
over the waters during the weekend.

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.

$$

ANZ250-030900-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
416 PM EDT Thu Apr 2 2020

...STORM WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
EVENING...

.TONIGHT...N winds 25 to 30 kt. Gusts up to 45 kt after midnight.
Seas 13 to 18 ft. Areas of fog. Rain. Vsby 1 to 3 NM.
.FRI...NE winds 25 to 35 kt with gusts up to 55 kt. Seas 19 to
24 ft. Areas of fog. Rain likely. Vsby 1 NM or less.
.FRI NIGHT...NE winds 25 to 30 kt with gusts up to 45 kt. Seas
14 to 19 ft. Areas of fog. A chance of rain. Vsby 1 to 3 NM.
.SAT...NE winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 10 to 15 ft.
.SAT NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas 8 to 11 ft.
.SUN...N winds around 5 kt, becoming S in the afternoon. Seas
6 to 9 ft.
.SUN NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt with
gusts up to 20 kt after midnight. Seas 6 to 8 ft. A chance of
showers.
.MON...NW winds 10 to 15 kt. Seas 4 to 7 ft.
.MON NIGHT AND TUE...W winds 5 to 10 kt, becoming S. Seas 3 to
5 ft.
.TUE NIGHT...S winds around 10 kt with gusts up to 20 kt. Seas
3 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.

$$

ANZ251-030900-
Massachusetts Bay and Ipswich Bay-
416 PM EDT Thu Apr 2 2020

...GALE WARNING IN EFFECT FROM 11 PM EDT THIS EVENING THROUGH
LATE FRIDAY NIGHT...

.TONIGHT...N winds 20 to 25 kt with gusts up to 30 kt, increasing
to 25 to 30 kt with gusts up to 40 kt after midnight. Seas 10 to
15 ft. Areas of fog. Rain. Vsby 1 to 3 NM.
.FRI...NE winds 25 to 30 kt with gusts up to 50 kt. Seas 15 to
20 ft. Areas of fog. Rain. Vsby 1 NM or less.
.FRI NIGHT...NE winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. Gusts up to 40 kt. Seas 12 to 17 ft. Areas of
fog. A chance of rain. Vsby 1 NM or less.
.SAT...NE winds 15 to 20 kt. Gusts up to 30 kt in the morning.
Seas 9 to 12 ft.
.SAT NIGHT...E winds 5 to 10 kt, becoming NE after midnight. Seas
7 to 10 ft.
.SUN AND SUN NIGHT...SW winds 5 to 10 kt. Seas 4 to 7 ft.
.MON...NW winds 5 to 10 kt. Seas 4 to 6 ft.
.MON NIGHT AND TUE...W winds 5 to 10 kt, becoming S. Seas 2 to
4 ft.
.TUE NIGHT...S winds 5 to 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.

$$

ANZ231-030900-
Cape Cod Bay-
416 PM EDT Thu Apr 2 2020

...STORM WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
EVENING...

.TONIGHT...N winds 20 to 25 kt. Gusts up to 30 kt, increasing to
45 kt after midnight. Seas 7 to 10 ft. Areas of fog. Rain. Vsby
1 NM or less, increasing to 1 to 3 NM after midnight.
.FRI...NE winds 25 to 30 kt with gusts up to 50 kt. Seas 9 to
12 ft. Areas of fog. Rain. Vsby 1 NM or less.
.FRI NIGHT...NE winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. Gusts up to 40 kt. Seas 7 to 10 ft. Areas of fog.
A chance of rain. Vsby 1 NM or less.
.SAT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to
8 ft. A chance of rain.
.SAT NIGHT...NE winds 10 to 15 kt, diminishing to around 5 kt
after midnight. Seas 3 to 5 ft.
.SUN...N winds around 5 kt, becoming S in the afternoon. Seas
2 to 4 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of
showers.
.MON THROUGH TUE...S winds 5 to 10 kt. Seas 2 to 4 ft.
.TUE NIGHT...S winds 5 to 10 kt with 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.

$$

ANZ254-030900-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
416 PM EDT Thu Apr 2 2020

...STORM WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
EVENING...

.TONIGHT...N winds 25 to 30 kt. Gusts up to 45 kt after midnight.
Seas 13 to 18 ft. Areas of fog. Rain. Vsby 1 NM or less,
increasing to 1 to 3 NM after midnight.
.FRI...NE winds 25 to 30 kt with gusts up to 50 kt. Seas 17 to
22 ft. Areas of fog. Rain likely. Vsby 1 NM or less.
.FRI NIGHT...NE winds 25 to 30 kt with gusts up to 45 kt,
diminishing to 20 to 25 kt with gusts up to 35 kt after midnight.
Seas 14 to 19 ft. Areas of fog. A chance of rain. Vsby 1 to 3 NM.
.SAT...NE winds 20 to 25 kt with gusts up to 35 kt. Seas 10 to
15 ft.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 9 to 12 ft.
.SUN...N winds 5 to 10 kt, becoming E in the afternoon. Seas 6 to
9 ft.
.SUN NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt with
gusts up to 20 kt after midnight. Seas 5 to 8 ft. A chance of
showers.
.MON...NW winds 5 to 10 kt. Seas 4 to 7 ft.
.MON NIGHT THROUGH TUE NIGHT...S winds 5 to 10 kt with gusts up
to 20 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.

$$

ANZ255-030900-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
416 PM EDT Thu Apr 2 2020

...STORM WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
EVENING...

.TONIGHT...N winds 20 to 25 kt with gusts up to 40 kt. Seas 7 to
10 ft, except 10 to 15 ft S and E of Nantucket. Areas of fog.
Rain. Vsby 1 to 3 NM.
.FRI...N winds 25 to 30 kt with gusts up to 50 kt. Seas 8 to
13 ft, except 15 to 20 ft S and E of Nantucket. Areas of fog.
Rain likely. Vsby 1 NM or less.
.FRI NIGHT...NE winds 25 to 30 kt with gusts up to 45 kt,
diminishing to 20 to 25 kt with gusts up to 35 kt after midnight.
Seas 8 to 11 ft, except 13 to 18 ft S and E of Nantucket. Areas
of fog. A chance of rain. Vsby 1 to 3 NM.
.SAT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 8 to
11 ft, except 11 to 16 ft S and E of Nantucket. A chance of rain.
.SAT NIGHT...NE winds 15 to 20 kt, diminishing to 5 to 10 kt
after midnight. Seas 6 to 9 ft, except 8 to 13 ft S and E of
Nantucket.
.SUN...N winds 5 to 10 kt, becoming SW in the afternoon. Seas
4 to 7 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Seas 4 to 7 ft. A chance of
showers.
.MON AND MON NIGHT...W winds 5 to 10 kt. Seas 4 to 6 ft.
.TUE...SW winds 5 to 10 kt. Seas 2 to 4 ft.
.TUE NIGHT...S winds 5 to 10 kt with gusts up to 20 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.

$$

ANZ256-030900-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
416 PM EDT Thu Apr 2 2020

...GALE WARNING IN EFFECT FROM 11 PM EDT THIS EVENING THROUGH
SATURDAY MORNING...

.TONIGHT...NW winds 20 to 25 kt. Gusts up to 30 kt, increasing to
40 kt after midnight. Seas 5 to 8 ft. Areas of fog. Rain likely.
Vsby 1 to 3 NM after midnight.
.FRI...N winds 25 to 30 kt with gusts up to 45 kt. Seas 8 to
11 ft. Areas of fog. Rain likely. Vsby 1 NM or less.
.FRI NIGHT...NE winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. Gusts up to 40 kt. Seas 8 to 11 ft. A chance of
rain.
.SAT...NE winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 7 to 10 ft.
.SAT NIGHT...NE winds 15 to 20 kt, diminishing to 5 to 10 kt
after midnight. Seas 5 to 8 ft.
.SUN...NE winds around 5 kt, becoming S in the afternoon. Seas
4 to 6 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Seas 4 to 6 ft. A chance of
showers.
.MON AND MON NIGHT...W winds 5 to 10 kt. Seas 3 to 5 ft.
.TUE...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers.
.TUE NIGHT...S winds 5 to 10 kt with gusts up to 20 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.

$$

ANZ232-030900-
Nantucket Sound-
416 PM EDT Thu Apr 2 2020

...STORM WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
EVENING...

.TONIGHT...N winds 20 to 25 kt. Gusts up to 30 kt, increasing to
40 kt after midnight. Seas 4 to 6 ft. Areas of fog. Rain. Vsby
1 NM or less, increasing to 1 to 3 NM after midnight.
.FRI...NE winds 25 to 30 kt with gusts up to 50 kt. Seas 5 to
8 ft. Areas of fog. Rain. Vsby 1 to 3 NM.
.FRI NIGHT...NE winds 25 to 30 kt, diminishing to 15 to 20 kt
after midnight. Gusts up to 40 kt. Seas 4 to 7 ft. Areas of fog.
Rain likely. Vsby 1 to 3 NM.
.SAT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to
7 ft. A chance of rain.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 3 to 5 ft.
.SUN...N winds around 5 kt, becoming SW in the afternoon. Seas
3 to 5 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of
showers.
.MON THROUGH TUE NIGHT...S 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.

$$

ANZ233-030900-
Vineyard Sound-
416 PM EDT Thu Apr 2 2020

...GALE WARNING IN EFFECT FROM 2 AM EDT FRIDAY THROUGH LATE
FRIDAY NIGHT...

.TONIGHT...N winds 20 to 25 kt with gusts up to 35 kt. Seas 2 to
3 ft. Areas of fog. Rain. Vsby 1 to 3 NM.
.FRI...N winds 20 to 25 kt, becoming NE 25 to 30 kt in the
afternoon. Gusts up to 45 kt. Seas 3 to 5 ft. Areas of fog. Rain.
Vsby 1 to 3 NM.
.FRI NIGHT...NE winds 20 to 25 kt with gusts up to 40 kt,
diminishing to 15 to 20 kt with gusts up to 30 kt after midnight.
Seas 3 to 5 ft. Areas of fog. Rain likely.
.SAT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft. A chance of rain.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft.
.SUN...N winds around 5 kt, becoming SW in the afternoon. Seas
2 to 3 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers.
.MON AND MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.TUE AND TUE NIGHT...S 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.

$$

ANZ234-030900-
Buzzards Bay-
416 PM EDT Thu Apr 2 2020

...GALE WARNING IN EFFECT FROM 2 AM EDT FRIDAY THROUGH LATE
FRIDAY NIGHT...

.TONIGHT...N winds 15 to 20 kt with gusts up to 35 kt. Seas 2 to
3 ft. Rain. Areas of fog after midnight. Vsby 1 to 3 NM.
.FRI...N winds 20 to 25 kt with gusts up to 40 kt. Seas 3 to
5 ft. Areas of fog. Rain. Vsby 1 to 3 NM.
.FRI NIGHT...NE winds 20 to 25 kt with gusts up to 40 kt,
diminishing to 15 to 20 kt with gusts up to 30 kt after midnight.
Seas 3 to 5 ft. Areas of fog. Rain likely.
.SAT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. A chance of rain.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt,
diminishing to around 5 kt after midnight. Seas 2 to 3 ft.
.SUN AND SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.MON AND MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.TUE AND TUE NIGHT...S 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.

$$

ANZ235-030900-
Rhode Island Sound-
416 PM EDT Thu Apr 2 2020

...GALE WARNING IN EFFECT FROM 2 AM EDT FRIDAY THROUGH LATE
FRIDAY NIGHT...

.TONIGHT...N winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to
5 ft. Rain. Areas of fog after midnight. Vsby 1 to 3 NM this
evening.
.FRI...N winds 25 to 30 kt with gusts up to 45 kt. Seas 5 to
8 ft. Areas of fog. Rain. Vsby 1 NM or less.
.FRI NIGHT...NE winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. Gusts up to 40 kt. Seas 5 to 8 ft. A chance of
rain.
.SAT...NE winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 4 to 6 ft.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 3 to 5 ft.
.SUN AND SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft.
.MON AND MON NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft.
.TUE...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
.TUE NIGHT...S winds 5 to 10 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.

$$

ANZ237-030900-
Block Island Sound-
416 PM EDT Thu Apr 2 2020

...GALE WARNING IN EFFECT FROM 2 AM EDT FRIDAY THROUGH LATE
FRIDAY NIGHT...

.TONIGHT...NW winds 15 to 20 kt with gusts up to 35 kt. Seas 2 to
4 ft. Rain likely. Areas of fog after midnight.
.FRI...N winds 20 to 25 kt with gusts up to 40 kt. Seas 4 to
7 ft. Areas of fog. Rain likely. Vsby 1 NM or less.
.FRI NIGHT...NE winds 20 to 25 kt with gusts up to 40 kt,
diminishing to 15 to 20 kt with gusts up to 30 kt after midnight.
Seas 5 to 8 ft. A chance of rain.
.SAT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to
7 ft.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 3 to 5 ft.
.SUN...E winds around 5 kt, becoming S in the afternoon. Seas
2 to 4 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of
showers.
.MON AND MON NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
.TUE NIGHT...S 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.

$$

ANZ230-030900-
Boston Harbor-
416 PM EDT Thu Apr 2 2020

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
EVENING...

.TONIGHT...N winds 20 to 25 kt with gusts up to 35 kt. Waves 4 to
7 ft, except 8 to 11 ft at the outer harbor entrance. Areas of
fog. Rain. Vsby 1 to 3 NM.
.FRI...NE winds 20 to 25 kt with gusts up to 40 kt. Waves 5 to
8 ft, except 11 to 16 ft at the outer harbor entrance. Areas of
fog. Rain. Vsby 1 to 3 NM.
.FRI NIGHT...NE winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Gusts up to 35 kt. Waves 4 to 7 ft, except 9 to
12 ft at the outer harbor entrance. Areas of fog. Rain likely.
Vsby 1 to 3 NM.
.SAT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Waves 2 to 4 ft, except 5 to 8 ft
at the outer harbor entrance. A chance of rain.
.SAT NIGHT AND SUN...S winds 5 to 10 kt. Waves 1 foot or less,
except 4 to 7 ft at the outer harbor entrance.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less, except
3 to 5 ft at the outer harbor entrance.
.MON THROUGH TUE...S winds 5 to 10 kt. Waves 1 foot or less,
except 2 to 4 ft at the outer harbor entrance.
.TUE NIGHT...S 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.

$$

ANZ236-030900-
Narragansett Bay-
416 PM EDT Thu Apr 2 2020

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
EVENING...

.TONIGHT...N winds 15 to 20 kt with gusts up to 30 kt. Waves 2 to
3 ft. Rain. Areas of fog after midnight. Vsby 1 to 3 NM this
evening.
.FRI...N winds 20 to 25 kt with gusts up to 40 kt. Waves 2 to
4 ft. Areas of fog. Rain. Vsby 1 to 3 NM.
.FRI NIGHT...NE winds 20 to 25 kt, becoming N 15 to 20 kt after
midnight. Gusts up to 35 kt. Waves 2 to 4 ft. A chance of rain.
.SAT...NE winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to
3 ft.
.SAT NIGHT...NE winds 5 to 10 kt, diminishing to around 5 kt
after midnight. Waves 2 to 3 ft.
.SUN AND SUN NIGHT...SW winds 5 to 10 kt. Waves around 2 ft.
.MON THROUGH TUE...SW winds 5 to 10 kt. Waves around 2 ft.
.TUE NIGHT...S 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.

$$

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