Storm Watch 3, NWS Boston/Norton, MA

168 
WHUS71 KBOX 112154
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
554 PM EDT Sat Apr 11 2020

ANZ230-236-120600-
/O.EXP.KBOX.SC.Y.0058.000000T0000Z-200411T2200Z/
/O.CON.KBOX.SR.A.0003.200413T1200Z-200414T0300Z/
Boston Harbor-Narragansett Bay-
554 PM EDT Sat Apr 11 2020

...STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 6 PM EDT THIS EVENING...

* WHAT...On Monday south winds 25 to 35 kt with gusts up to 65 kt
  and seas 6 to 9 feet possible.

* WHERE...In Massachusetts coastal waters, Boston Harbor. In 
  Rhode Island coastal waters, Narragansett Bay.

* WHEN...From Monday morning through Monday evening.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare to remain in port, alter course, and/or
secure the vessel for severe conditions before conditions
deteriorate.

&&

$$

ANZ231-120600-
/O.EXP.KBOX.SC.Y.0058.000000T0000Z-200411T2200Z/
/O.CON.KBOX.SR.A.0003.200413T1200Z-200414T0300Z/
Cape Cod Bay-
554 PM EDT Sat Apr 11 2020

...STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 6 PM EDT THIS EVENING...

* WHAT...On Monday south winds 30 to 40 kt with gusts up to 60 kt
  and seas 4 to 7 feet possible.

* WHERE...Cape Cod Bay.

* WHEN...From Monday morning through Monday evening.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare to remain in port, alter course, and/or
secure the vessel for severe conditions before conditions
deteriorate.

&&

$$

ANZ232>235-237-120600-
/O.CON.KBOX.SC.Y.0058.000000T0000Z-200412T0000Z/
/O.CON.KBOX.SR.A.0003.200413T1200Z-200414T0300Z/
Nantucket Sound-Vineyard Sound-Buzzards Bay-Rhode Island Sound-
Block Island Sound-
554 PM EDT Sat Apr 11 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
...STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

* WHAT...For the Small Craft Advisory this evening, west winds
  around 15 kt with gusts up to 30 kt and seas 2 to 4 feet. For
  the Storm Watch on Monday, south winds 35 to 45 kt with gusts 
  up to 65 kt and seas 11 to 16 feet possible.

* WHERE...In Massachusetts coastal waters, Nantucket Sound, 
  Vineyard Sound and Buzzards Bay. In Rhode Island coastal 
  waters, Block Island Sound and Rhode Island Sound.

* WHEN...For the Small Craft Advisory, until 8 PM EDT this 
  evening. For the Storm Watch, from Monday morning through 
  Monday evening.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare to remain in port, alter course, and/or
secure the vessel for severe conditions before conditions
deteriorate.

&&

$$

ANZ250-254-120600-
/O.CON.KBOX.SC.Y.0058.000000T0000Z-200412T0000Z/
/O.CON.KBOX.SR.A.0003.200413T1200Z-200414T0300Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
554 PM EDT Sat Apr 11 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
...STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

* WHAT...For the Small Craft Advisory this evening, west winds 10
  to 15 kt with gusts up to 30 kt and seas 3 to 5 feet. For the
  Storm Watch on Monday, south winds 35 to 45 kt with gusts up to
  60 kt and seas 10 to 15 feet possible.

* WHERE...Coastal waters east of Ipswich Bay and the Stellwagen 
  Bank National Marine Sanctuary and Coastal waters from 
  Provincetown MA to Chatham MA to Nantucket MA out 20 nm.

* WHEN...For the Small Craft Advisory, until 8 PM EDT this 
  evening. For the Storm Watch, from Monday morning through 
  Monday evening.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare to remain in port, alter course, and/or
secure the vessel for severe conditions before conditions
deteriorate.

&&

$$

ANZ251-120600-
/O.CON.KBOX.SC.Y.0058.000000T0000Z-200412T0000Z/
/O.CON.KBOX.SR.A.0003.200413T1200Z-200414T0300Z/
Massachusetts Bay and Ipswich Bay-
554 PM EDT Sat Apr 11 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
...STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

* WHAT...For the Small Craft Advisory this evening, west winds 10
  to 15 kt with gusts up to 25 kt and seas 2 to 3 feet. For the
  Storm Watch on Monday, south winds 30 to 40 kt with gusts up to
  60 kt and seas 7 to 10 feet possible.

* WHERE...Massachusetts Bay and Ipswich Bay.

* WHEN...For the Small Craft Advisory, until 8 PM EDT this 
  evening. For the Storm Watch, from Monday morning through 
  Monday evening.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare to remain in port, alter course, and/or
secure the vessel for severe conditions before conditions
deteriorate.

&&

$$

ANZ255-256-120600-
/O.CON.KBOX.SC.Y.0058.000000T0000Z-200412T0600Z/
/O.CON.KBOX.SR.A.0003.200413T1200Z-200414T0300Z/
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
554 PM EDT Sat Apr 11 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT SUNDAY...
...STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

* WHAT...For the Small Craft Advisory tonight, west winds 10 to 20
  kt with gusts up to 30 kt and seas 4 to 7 feet. For the Storm
  Watch on Monday, south winds 35 to 45 kt with gusts up to 65 kt
  and seas 15 to 20 feet possible.

* WHERE...In Massachusetts coastal waters, Coastal Waters 
  extending out to 25 nm South of Marthas Vineyard and 
  Nantucket. In Rhode Island coastal waters, Coastal Waters from 
  Montauk NY to Marthas Vineyard extending out to 20 nm South of 
  Block Island.

* WHEN...For the Small Craft Advisory, until 2 AM EDT Sunday. 
  For the Storm Watch, from Monday morning through Monday 
  evening.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare to remain in port, alter course, and/or
secure the vessel for severe conditions before conditions
deteriorate.

&&

$$

BL

162 
WHUS71 KBOX 112354
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
754 PM EDT Sat Apr 11 2020

ANZ232>235-237-120800-
/O.EXP.KBOX.SC.Y.0058.000000T0000Z-200412T0000Z/
/O.CON.KBOX.SR.A.0003.200413T1200Z-200414T0300Z/
Nantucket Sound-Vineyard Sound-Buzzards Bay-Rhode Island Sound-
Block Island Sound-
754 PM EDT Sat Apr 11 2020

...STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 8 PM EDT THIS EVENING...

* WHAT...On Monday south winds 35 to 45 kt with gusts up to 65 kt
  and seas 11 to 16 feet possible.

* WHERE...In Massachusetts coastal waters, Nantucket Sound, 
  Vineyard Sound and Buzzards Bay. In Rhode Island coastal 
  waters, Block Island Sound and Rhode Island Sound.

* WHEN...From Monday morning through Monday evening.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare to remain in port, alter course, and/or
secure the vessel for severe conditions before conditions
deteriorate.

&&

$$

ANZ250-254-120800-
/O.EXP.KBOX.SC.Y.0058.000000T0000Z-200412T0000Z/
/O.CON.KBOX.SR.A.0003.200413T1200Z-200414T0300Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
754 PM EDT Sat Apr 11 2020

...STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 8 PM EDT THIS EVENING...

* WHAT...On Monday south winds 35 to 45 kt with gusts up to 60 kt
  and seas 10 to 15 feet possible.

* WHERE...Coastal waters east of Ipswich Bay and the Stellwagen 
  Bank National Marine Sanctuary and Coastal waters from 
  Provincetown MA to Chatham MA to Nantucket MA out 20 nm.

* WHEN...From Monday morning through Monday evening.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare to remain in port, alter course, and/or
secure the vessel for severe conditions before conditions
deteriorate.

&&

$$

ANZ251-120800-
/O.EXP.KBOX.SC.Y.0058.000000T0000Z-200412T0000Z/
/O.CON.KBOX.SR.A.0003.200413T1200Z-200414T0300Z/
Massachusetts Bay and Ipswich Bay-
754 PM EDT Sat Apr 11 2020

...STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 8 PM EDT THIS EVENING...

* WHAT...On Monday south winds 30 to 40 kt with gusts up to 60 kt
  and seas 7 to 10 feet possible.

* WHERE...Massachusetts Bay and Ipswich Bay.

* WHEN...From Monday morning through Monday evening.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare to remain in port, alter course, and/or
secure the vessel for severe conditions before conditions
deteriorate.

&&

$$

ANZ255-256-120800-
/O.CON.KBOX.SC.Y.0058.000000T0000Z-200412T0600Z/
/O.CON.KBOX.SR.A.0003.200413T1200Z-200414T0300Z/
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
754 PM EDT Sat Apr 11 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT SUNDAY...
...STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

* WHAT...For the Small Craft Advisory tonight, west winds 10 to 15
  kt with gusts up to 25 kt and seas 4 to 6 feet. For the Storm
  Watch on Monday, south winds 35 to 45 kt with gusts up to 65 kt
  and seas 15 to 20 feet possible.

* WHERE...In Massachusetts coastal waters, Coastal Waters 
  extending out to 25 nm South of Marthas Vineyard and 
  Nantucket. In Rhode Island coastal waters, Coastal Waters from 
  Montauk NY to Marthas Vineyard extending out to 20 nm South of 
  Block Island.

* WHEN...For the Small Craft Advisory, until 2 AM EDT Sunday. 
  For the Storm Watch, from Monday morning through Monday 
  evening.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare to remain in port, alter course, and/or
secure the vessel for severe conditions before conditions
deteriorate.

&&

$$

ANZ230-231-236-120800-
/O.CON.KBOX.SR.A.0003.200413T1200Z-200414T0300Z/
Boston Harbor-Cape Cod Bay-Narragansett Bay-
754 PM EDT Sat Apr 11 2020

...STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

* WHAT...South winds 30 to 40 kt with gusts up to 65 kt and seas 
  5 to 8 feet possible.

* WHERE...In Massachusetts coastal waters, Boston Harbor and 
  Cape Cod Bay. In Rhode Island coastal waters, Narragansett Bay.

* WHEN...From Monday morning through Monday evening.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare to remain in port, alter course, and/or
secure the vessel for severe conditions before conditions
deteriorate.

&&

$$

BL

820 
WHUS71 KBOX 120809
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
409 AM EDT Sun Apr 12 2020

ANZ230>237-250-251-254>256-121615-
/O.CON.KBOX.SR.A.0003.200413T1200Z-200414T0300Z/
Boston Harbor-Cape Cod Bay-Nantucket Sound-Vineyard Sound-
Buzzards Bay-Rhode Island Sound-Narragansett Bay-
Block Island Sound-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-Massachusetts Bay and Ipswich Bay-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
409 AM EDT Sun Apr 12 2020

...STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

* WHAT...On Monday south winds 35 to 45 kt with gusts up to 60 kt
  and seas 11 to 16 feet possible.

* WHERE...In Massachusetts coastal waters, Nantucket Sound, 
  Vineyard Sound and Buzzards Bay. In Rhode Island coastal 
  waters, Block Island Sound and Rhode Island Sound.

* WHEN...From Monday morning through Monday evening.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare to remain in port, alter course, and/or
secure the vessel for severe conditions before conditions
deteriorate.

&&

$$

940 
WHUS71 KBOX 121532
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
1132 AM EDT Sun Apr 12 2020

ANZ230>237-250-251-254>256-122345-
/O.CON.KBOX.SR.A.0003.200413T1200Z-200414T0300Z/
Boston Harbor-Cape Cod Bay-Nantucket Sound-Vineyard Sound-
Buzzards Bay-Rhode Island Sound-Narragansett Bay-
Block Island Sound-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-Massachusetts Bay and Ipswich Bay-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1132 AM EDT Sun Apr 12 2020

...STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

* WHAT...South winds 25 to 35 kt with gusts up to 65 kt and seas 
  14 to 19 feet possible.

* WHERE...Portions of Massachusetts coastal waters and Rhode 
  Island coastal waters. 

* WHEN...From Monday morning through Monday evening.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare to remain in port, alter course, and/or
secure the vessel for severe conditions before conditions
deteriorate.

&&

$$

206 
WHUS71 KBOX 122007
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
407 PM EDT Sun Apr 12 2020

ANZ235-237-256-130415-
/O.UPG.KBOX.SR.A.0003.200413T1200Z-200414T0300Z/
/O.NEW.KBOX.SR.W.0004.200413T1600Z-200414T0200Z/
Rhode Island Sound-Block Island Sound-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
407 PM EDT Sun Apr 12 2020

...STORM WARNING IN EFFECT FROM NOON TO 10 PM EDT MONDAY...

* WHAT...South winds 30 to 35 kt with gusts up to 65 kt and seas 
  17 to 22 feet expected.

* WHERE...Rhode Island Sound, Block Island Sound and Coastal 
  Waters from Montauk NY to Marthas Vineyard extending out to 20 
  nm South of Block Island.

* WHEN...From noon to 10 PM EDT Monday.

* IMPACTS...Very strong winds will cause hazardous seas which
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ250-254-255-130415-
/O.UPG.KBOX.SR.A.0003.200413T1200Z-200414T0300Z/
/O.NEW.KBOX.SR.W.0004.200413T1800Z-200414T0200Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
407 PM EDT Sun Apr 12 2020

...STORM WARNING IN EFFECT FROM 2 PM TO 10 PM EDT MONDAY...

* WHAT...South winds 30 to 35 kt with gusts up to 60 kt and seas 
  13 to 18 feet expected.

* WHERE...Coastal waters east of Ipswich Bay and the Stellwagen 
  Bank National Marine Sanctuary, Coastal waters from 
  Provincetown MA to Chatham MA to Nantucket MA out 20 nm and 
  Coastal Waters extending out to 25 nm South of Marthas 
  Vineyard and Nantucket.

* WHEN...From 2 PM to 10 PM EDT Monday.

* IMPACTS...Very strong winds will cause hazardous seas which
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ231-251-130415-
/O.UPG.KBOX.SR.A.0003.200413T1200Z-200414T0300Z/
/O.NEW.KBOX.SR.W.0004.200413T1900Z-200414T0200Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
407 PM EDT Sun Apr 12 2020

...STORM WARNING IN EFFECT FROM 3 PM TO 10 PM EDT MONDAY...

* WHAT...South winds 25 to 35 kt with gusts up to 60 kt and seas 
  6 to 11 feet expected.

* WHERE...Cape Cod Bay and Massachusetts Bay and Ipswich Bay.

* WHEN...From 3 PM to 10 PM EDT Monday.

* IMPACTS...Very strong winds will cause hazardous seas which
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ232-130415-
/O.UPG.KBOX.SR.A.0003.200413T1200Z-200414T0300Z/
/O.NEW.KBOX.SR.W.0004.200413T1900Z-200414T0200Z/
Nantucket Sound-
407 PM EDT Sun Apr 12 2020

...STORM WARNING IN EFFECT FROM 3 PM TO 10 PM EDT MONDAY...

* WHAT...South winds 30 to 35 kt with gusts up to 60 kt and seas 
  6 to 9 feet expected.

* WHERE...Nantucket Sound.

* WHEN...From 3 PM to 10 PM EDT Monday.

* IMPACTS...Very strong winds will cause hazardous seas which
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ233-234-130415-
/O.UPG.KBOX.SR.A.0003.200413T1200Z-200414T0300Z/
/O.NEW.KBOX.SR.W.0004.200413T1800Z-200414T0200Z/
Vineyard Sound-Buzzards Bay-
407 PM EDT Sun Apr 12 2020

...STORM WARNING IN EFFECT FROM 2 PM TO 10 PM EDT MONDAY...

* WHAT...South winds 30 to 35 kt with gusts up to 65 kt and seas 
  7 to 10 feet expected.

* WHERE...Vineyard Sound and Buzzards Bay.

* WHEN...From 2 PM to 10 PM EDT Monday.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ236-130415-
/O.UPG.KBOX.SR.A.0003.200413T1200Z-200414T0300Z/
/O.NEW.KBOX.SR.W.0004.200413T1800Z-200414T0100Z/
Narragansett Bay-
407 PM EDT Sun Apr 12 2020

...STORM WARNING IN EFFECT FROM 2 PM TO 9 PM EDT MONDAY...

* WHAT...South winds 25 to 35 kt with gusts up to 65 kt and seas 
  8 to 13 feet expected.

* WHERE...Narragansett Bay.

* WHEN...From 2 PM to 9 PM EDT Monday.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ230-130415-
/O.UPG.KBOX.SR.A.0003.200413T1200Z-200414T0300Z/
/O.NEW.KBOX.SR.W.0004.200413T2000Z-200414T0000Z/
Boston Harbor-
407 PM EDT Sun Apr 12 2020

...STORM WARNING IN EFFECT FROM 4 PM TO 8 PM EDT MONDAY...

* WHAT...South winds 25 to 30 kt with gusts up to 50 kt and seas 
  3 to 5 feet expected.

* WHERE...Boston Harbor.

* WHEN...From 4 PM to 8 PM EDT Monday.

* IMPACTS...Very strong winds will cause hazardous seas which
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

Area Forecast Discussion
National Weather Service Boston/Norton MA
148 PM EDT Sat Apr 11 2020

.SYNOPSIS...
Powerful low pressure over the Canadian Maritimes moves farther
northeast away from the region today, loosening its grip on southern
New England. As a result dry weather returns today along with more
sunshine, milder temperatures and not as windy as Friday. Ridge of
high pressure south of New England provides dry chilly conditions
tonight. The high moves offshore Sunday with dry seasonable weather
continuing. Powerful low pressure then tracks thru the Great Lakes
Monday with heavy showers and strong winds to impact southern New
England. Dry and seasonable weather returns Tuesday but likely
turning cooler mid to late next week.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...

140pm update...

Forecast remains on track so made no major changes.

Previous discussion...

1015am update...

Winds have picked up and begun to become gusty with an
approaching 500mb shortwave. Visible satellite shows gravity
wave clouds downstream of the Green Mountains and the Berkshires
in response to an upper level shortwave sliding through the
area. This will bring a few hours of cumulus at around 5-6k ft,
as well as an increase in wind speed, especially in higher
terrain and coastal locations as the atmosphere mixes to 800 mb.
No precipitation expected because the low level is dry. With
850mb temps rising to around -5C this afternoon, expect
temperatures to overperform than most guidance suggests. The
previous shift has done a great job in reflecting that in the
forecast with afternoon highs in the 50s, which is right about
average for mid April. It will feel cooler than what the
temperature suggests, however, with the breezy conditions. So
overall, no main changes to the forecast except to bump up the
winds late morning into the afternoon.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 PM SUNDAY/...
Tonight ...

Short wave ridging across the area provides dry weather. Surface
ridge over the region results in diminishing winds and mostly clear
conditions. This combined with a dry airmass will yield chilly temps
overnight. Given good radiational cooling conditions followed the
cooler MOS guidance to derive min temps. Lows mainly in the mid to
upper 20s, except 30-35 in the urban areas and along the coast.

Sunday ...

Ridging holds on to provide dry weather however WAA pattern yields
sunshine thru increasing mid and high clouds thru the day. Overall a
nice day with near normal temps as highs climb to 55-60 except
cooler south coast as SSW winds develop and increase to 20 kt in
gusts during the afternoon.

&&

.LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/...
Highlights...

* Mild temperatures Monday and Tuesday, turning colder by mid week

* Rain, thunderstorms, and gusty winds on Monday

* Dry on Tuesday, then several disturbances move through mid-late
  week

Details...

Sunday night and Monday...

By the early hours of Monday morning the next strong storm system
will impact southern New England bringing widespread heavy rain,
strong winds, and thunderstorms to the region. In the big picture we
have the phasing of two distinct disturbances. The first is a cutoff
low which sits and spins over the desert southwest over the weekend,
before finally being pulled into the steering flow on Sunday and
eventually merging with a digging northern Plains trough. This all
then moves through the southeast bringing severe weather to that
region on Sunday before lifting through the eastern Great Lakes and
New England on Monday. This will be a very strong and expansive
system; global guidance places the MSLP at the center of the sfc low
down to sub 980 mb, potentially sub 970 mb, with a very large wind
field. Jet dynamics are thus quite strong and winds not far off the
surface will be howling with this system. By 18Z Monday guidance
shows a southerly 850 mb LLJ of 90-100kts! GEFS ensemble guidance
shows v (southerly) component of the jet at 5-6 standard deviations
above normal; should be plenty of convergent lift on the nose of
this jet. Upper jet dynamics are favorable for ascent as well, as
southern New England is placed beneath the front exit region of a
strong 300 mb jet. This in combination with warm
advection/isentropic lift in the warm sector followed by the cold
frontal passage will bring widespread rain and certainly some heavy
downpours given the amount of moisture available. PWATS approach
1.5" (2-3 SD above normal) and dewpoints reach the upper 50s ahead
of the cold front.

Strong, potentially damaging winds will likely an issue on Monday
given the strong LLJ; not expecting the full force of the jet at the
surface of course, but certainly would expect to see winds gusting
45-55kts. Any thunderstorms that do form will have the potential for
stronger/damaging winds.

Speaking of which, the potential is there for convection with this
system. While sfc based instability is lacking in most guidance,
elevated convection looks more likely, with MUCAPE values of 500-
1000 J/kg and strong shear (50-60 kts of 0-6 km bulk shear). The
chance for thunderstorms, some of which could be strong to severe,
increases late Monday morning in western MA/CT and spreads east
through the afternoon and evening ahead of the cold front. The mid
level dry slot moves over head late Monday followed by the cold
front which moves through late Monday night into early Tuesday
morning. With it comes much drier air and the end of the rain;
dewpoints drop from near 60F Monday afternoon to the mid 20s
Tuesday.

Tuesday through Friday...

The storm system exits into Quebec by daybreak on Tuesday leaving
much of the central/eastern U.S. under a sprawling upper trough. Dry
air behind the cold front and CAA aloft will lead to a dry but gusty
day on Tuesday. Mid-late week several shortwaves move through
bringing periodic rain chances...however confidence in exact timing
and placement of these are low. The next decent shot of rain comes
Wednesday, but its not a certainty...yet to be seen if high pressure
will be strong enough to keep the passing low pressure far enough
south so that we can remain dry. Better chance of rain right now is
for the south coast in closer proximity to the system. I have
more confidence in the temperature pattern than timing of rain
chances in this period. Under the trough temperatures will
become quite a bit cooler starting on Wednesday with highs in
the 40s, with no big warm up through Friday. This aligns with
thinking from the CPC that this period stands a good chance of
featuring below average temperatures.

&&

.AVIATION /18Z SATURDAY THROUGH THURSDAY/...
Forecaster Confidence Levels...

Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.

18z update ... high confidence.

Rest of today ...

VFR and dry weather. Cigs BKN050-070 have developed and should
dissipate by 00z, except on the immediate coast where it may
linger through the evening hours. Breezy at times with WNW
winds 15-20kt gusting to 25-30kt at times.

Tonight ...

VFR, dry weather with diminishing west winds.

Sunday ...

VFR, dry weather with Cigs BKN060-080 developing by late
morning. SSW winds developing, then increasing 10-15 kt with
gusts up to 20 kt in the afternoon.

KBOS Terminal...high confidence in the TAF.

KBDL Terminal...high confidence in the TAF.

Outlook /Sunday Night through Wednesday/...

Sunday: VFR. Breezy.

Sunday Night: Mainly VFR, with local MVFR possible. Breezy.
Chance SHRA.

Monday: Mainly VFR, with local IFR possible. Strong winds with
gusts up to 50 kt. SHRA, TSRA likely.

Monday Night: VFR. Strong winds with gusts up to 45 kt. Slight
chance SHRA, isolated TSRA.

Tuesday: VFR. Breezy.

Tuesday Night through Wednesday: VFR. Breezy. Chance SHRA.

&&

.MARINE...

18z update...

***Small Craft Advisories for all waters continue through this
 evening***

Rest of today ... Maritime low pressure will continue to
generate WNW winds 15-20 kt with gusts up to 25 kt. Thus SCA
continues thru the day. However dry weather and good vsby
prevail.

Tonight ... High pressure over the Mid Atlc states provides
diminishing west winds. Dry weather and good vsby continue.

Sunday ... Mid Atlc high moves farther offshore inducing SSW winds
10-15 kt with gusts up to 20 kt across the waters. Dry weather and
good vsby continue.

Outlook /Sunday Night through Wednesday/...

Sunday: Winds less than 25 kt. Seas locally approaching 5 ft.

Sunday Night: Low risk for Small Craft Advisory winds with
gusts up to 25 kt. Local rough seas. Chance of rain showers.

Monday: Low risk for storm force winds with gusts up to 50 kt.
Rough seas up to 17 ft. Rain showers, thunderstorms likely.

Monday Night: Low risk for gale force winds with gusts up to
45 kt. Rough seas up to 17 ft. Chance of rain showers, slight
chance of thunderstorms.

Tuesday: Winds less than 25 kt. Rough seas up to 11 ft.

Tuesday Night: Winds less than 25 kt. Areas of rough seas.
Chance of rain showers.

Wednesday: Winds less than 25 kt. Areas of seas approaching
5 ft. Chance of rain showers.

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 8 PM EDT this evening for
     ANZ232>235-237-250-251-254.
     Small Craft Advisory until 6 PM EDT this evening for ANZ230-
     231-236.
     Small Craft Advisory until 2 AM EDT Sunday for ANZ255-256.

&&

SYNOPSIS...Nocera/BW
NEAR TERM...Nocera/BW/Chai
SHORT TERM...Nocera
LONG TERM...BW
AVIATION...Nocera/BW/Chai
MARINE...Nocera/BW/Chai

Hazardous Weather Outlook
National Weather Service Boston/Norton MA
421 AM EDT Sat Apr 11 2020

MAZ007-015-016-019-022>024-120830-
Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-Eastern Plymouth MA-
Barnstable MA-Dukes MA-Nantucket MA-
421 AM EDT Sat Apr 11 2020

This Hazardous Weather Outlook is for eastern Massachusetts,
northeastern Massachusetts and southeastern Massachusetts.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

CTZ002>004-MAZ002>006-008>014-017-018-020-021-026-RIZ001>008-120830-
Hartford CT-Tolland CT-Windham CT-Western Franklin MA-
Eastern Franklin MA-Northern Worcester MA-Central Middlesex MA-
Western Essex MA-Western Hampshire MA-Western Hampden MA-
Eastern Hampshire MA-Eastern Hampden MA-Southern Worcester MA-
Western Norfolk MA-Southeast Middlesex MA-Northern Bristol MA-
Western Plymouth MA-Southern Bristol MA-Southern Plymouth MA-
Northern Middlesex MA-Northwest Providence RI-
Southeast Providence RI-Western Kent RI-Eastern Kent RI-Bristol RI-
Washington RI-Newport RI-Block Island RI-
421 AM EDT Sat Apr 11 2020

This Hazardous Weather Outlook is for northern Connecticut, central
Massachusetts, eastern Massachusetts, northeastern Massachusetts,
southeastern Massachusetts, western Massachusetts, and Rhode Island.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ230>237-250-251-254>256-120830-
Boston Harbor-Cape Cod Bay-Nantucket Sound-Vineyard Sound-
Buzzards Bay-Rhode Island Sound-Narragansett Bay-Block Island Sound-
Coastal waters east of Ipswich Bay and the Stellwagen Bank National
Marine Sanctuary-Massachusetts Bay and Ipswich Bay-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
Coastal Waters extending out to 25 nm South of Marthas Vineyard and
Nantucket-
Coastal Waters from Montauk NY to Marthas Vineyard extending out to
20 nm South of Block Island-
421 AM EDT Sat Apr 11 2020

This Hazardous Weather Outlook is for Massachusetts and Rhode
Island coastal waters.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

For more information on upcoming hazardous weather, please see the
Area Forecast Discussion on our webpage for the latest forecast
thinking. There is also our Enhanced Hazardous Weather Outlook at
www.weather.gov/box/ehwo

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

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@NWSBoston