Small Craft Advisory 150, NWS Boston/Norton, MA

053 
WHUS71 KBOX 200832
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
332 AM EST Tue Nov 20 2018

ANZ250-201645-
/O.CON.KBOX.SC.Y.0150.181120T1500Z-181121T1100Z/
/O.CON.KBOX.GL.A.0037.181121T2100Z-181123T0000Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
332 AM EST Tue Nov 20 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING
TO 6 AM EST WEDNESDAY...
...GALE WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
THURSDAY EVENING...

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  40 kt. Seas 5 to 8 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

ANZ254-255-201645-
/O.CON.KBOX.SC.Y.0150.181120T1800Z-181121T1100Z/
/O.CON.KBOX.GL.A.0037.181121T2100Z-181123T0000Z/
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-
332 AM EST Tue Nov 20 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 6 AM EST WEDNESDAY...
...GALE WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
THURSDAY EVENING...

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  40 kt. Seas 7 to 10 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

ANZ231-251-201645-
/O.CON.KBOX.SC.Y.0150.181120T1800Z-181121T0600Z/
/O.EXT.KBOX.GL.A.0037.181122T0000Z-181123T0000Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
332 AM EST Tue Nov 20 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 1 AM EST WEDNESDAY...
...GALE WATCH NOW IN EFFECT FROM WEDNESDAY EVENING THROUGH
THURSDAY EVENING...

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  40 kt. Seas 3 to 6 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

ANZ256-201645-
/O.CON.KBOX.SC.Y.0150.181120T1800Z-181121T1100Z/
/O.CON.KBOX.GL.A.0037.181121T2100Z-181123T0000Z/
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
332 AM EST Tue Nov 20 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 6 AM EST WEDNESDAY...
...GALE WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
THURSDAY EVENING...

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  35 kt. Seas 5 to 8 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

ANZ235-237-201645-
/O.CON.KBOX.SC.Y.0150.181120T2100Z-181121T1100Z/
/O.EXT.KBOX.GL.A.0037.181121T2100Z-181123T0000Z/
Rhode Island Sound-Block Island Sound-
332 AM EST Tue Nov 20 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 6 AM EST WEDNESDAY...
...GALE WATCH NOW IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
THURSDAY EVENING...

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  35 kt. Seas 3 to 6 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

ANZ232>234-201645-
/O.CON.KBOX.SC.Y.0150.181120T2100Z-181121T0900Z/
/O.EXT.KBOX.GL.A.0037.181122T0000Z-181123T0000Z/
Nantucket Sound-Vineyard Sound-Buzzards Bay-
332 AM EST Tue Nov 20 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 4 AM EST WEDNESDAY...
...GALE WATCH NOW IN EFFECT FROM WEDNESDAY EVENING THROUGH
THURSDAY EVENING...

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  40 kt. Seas 3 to 5 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

ANZ230-236-201645-
/O.EXB.KBOX.GL.A.0037.181122T1000Z-181122T2300Z/
Boston Harbor-Narragansett Bay-
332 AM EST Tue Nov 20 2018

...GALE WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH
THURSDAY AFTERNOON...

The National Weather Service in Boston/Norton has issued a Gale
Watch, which is in effect from late Wednesday night through
Thursday afternoon.

* WINDS AND SEAS...Northwest winds 15 to 20 kt with gusts up to 35
  kt. Waves 2 to 3 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

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

103 
WHUS71 KBOX 201536
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
1036 AM EST Tue Nov 20 2018

ANZ250-202345-
/O.CON.KBOX.SC.Y.0150.000000T0000Z-181121T1100Z/
/O.CON.KBOX.GL.A.0037.181121T2100Z-181123T0000Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1036 AM EST Tue Nov 20 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
WEDNESDAY...
...GALE WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
THURSDAY EVENING...

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  40 kt. Seas 5 to 8 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

ANZ254-255-202345-
/O.CON.KBOX.SC.Y.0150.181120T1800Z-181121T1100Z/
/O.CON.KBOX.GL.A.0037.181121T2100Z-181123T0000Z/
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-
1036 AM EST Tue Nov 20 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
WEDNESDAY...
...GALE WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
THURSDAY EVENING...

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  40 kt. Seas 7 to 10 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

ANZ231-251-202345-
/O.CON.KBOX.SC.Y.0150.181120T1800Z-181121T0600Z/
/O.CON.KBOX.GL.A.0037.181122T0000Z-181123T0000Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
1036 AM EST Tue Nov 20 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM EST
WEDNESDAY...
...GALE WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH
THURSDAY EVENING...

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  40 kt. Seas 3 to 6 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

ANZ256-202345-
/O.CON.KBOX.SC.Y.0150.181120T1800Z-181121T1100Z/
/O.CON.KBOX.GL.A.0037.181121T2100Z-181123T0000Z/
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1036 AM EST Tue Nov 20 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
WEDNESDAY...
...GALE WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
THURSDAY EVENING...

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  35 kt. Seas 5 to 8 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

ANZ235-237-202345-
/O.CON.KBOX.SC.Y.0150.181120T2100Z-181121T1100Z/
/O.CON.KBOX.GL.A.0037.181121T2100Z-181123T0000Z/
Rhode Island Sound-Block Island Sound-
1036 AM EST Tue Nov 20 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 6 AM EST WEDNESDAY...
...GALE WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
THURSDAY EVENING...

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  35 kt. Seas 3 to 6 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

ANZ232>234-202345-
/O.CON.KBOX.SC.Y.0150.181120T2100Z-181121T0900Z/
/O.CON.KBOX.GL.A.0037.181122T0000Z-181123T0000Z/
Nantucket Sound-Vineyard Sound-Buzzards Bay-
1036 AM EST Tue Nov 20 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 4 AM EST WEDNESDAY...
...GALE WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH
THURSDAY EVENING...

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  40 kt. Seas 3 to 5 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

ANZ230-236-202345-
/O.CON.KBOX.GL.A.0037.181122T1000Z-181122T2300Z/
Boston Harbor-Narragansett Bay-
1036 AM EST Tue Nov 20 2018

...GALE WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH
THURSDAY AFTERNOON...

* WINDS AND SEAS...Northwest winds 15 to 20 kt with gusts up to 
  35 kt. Waves Around 3 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

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

190 
WHUS71 KBOX 202037
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
337 PM EST Tue Nov 20 2018

ANZ232>234-210445-
/O.CAN.KBOX.SC.Y.0150.181120T2100Z-181121T0900Z/
/O.UPG.KBOX.GL.A.0037.181122T0000Z-181123T0000Z/
/O.NEW.KBOX.GL.W.0050.181121T2100Z-181123T0000Z/
Nantucket Sound-Vineyard Sound-Buzzards Bay-
337 PM EST Tue Nov 20 2018

...GALE WARNING IN EFFECT FROM 4 PM WEDNESDAY TO 7 PM EST
THURSDAY...
...SMALL CRAFT ADVISORY IS CANCELLED...

The National Weather Service in Boston/Norton has issued a Gale
Warning, which is in effect from 4 PM Wednesday to 7 PM EST
Thursday. The Small Craft Advisory has been cancelled. The Gale
Watch is no longer in effect.

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  35 kt. Seas 3 to 5 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

ANZ231-251-210445-
/O.CAN.KBOX.SC.Y.0150.000000T0000Z-181121T0600Z/
/O.UPG.KBOX.GL.A.0037.181122T0000Z-181123T0000Z/
/O.NEW.KBOX.GL.W.0050.181121T2100Z-181123T0000Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
337 PM EST Tue Nov 20 2018

...GALE WARNING IN EFFECT FROM 4 PM WEDNESDAY TO 7 PM EST
THURSDAY...
...SMALL CRAFT ADVISORY IS CANCELLED...

The National Weather Service in Boston/Norton has issued a Gale
Warning, which is in effect from 4 PM Wednesday to 7 PM EST
Thursday. The Small Craft Advisory has been cancelled. The Gale
Watch is no longer in effect.

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  40 kt. Seas 3 to 6 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

ANZ235-237-210445-
/O.CAN.KBOX.SC.Y.0150.181120T2100Z-181121T1100Z/
/O.UPG.KBOX.GL.A.0037.181121T2100Z-181123T0000Z/
/O.NEW.KBOX.GL.W.0050.181121T2100Z-181123T0000Z/
Rhode Island Sound-Block Island Sound-
337 PM EST Tue Nov 20 2018

...GALE WARNING IN EFFECT FROM 4 PM WEDNESDAY TO 7 PM EST
THURSDAY...
...SMALL CRAFT ADVISORY IS CANCELLED...

The National Weather Service in Boston/Norton has issued a Gale
Warning, which is in effect from 4 PM Wednesday to 7 PM EST
Thursday. The Small Craft Advisory has been cancelled. The Gale
Watch is no longer in effect.

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  40 kt. Seas 4 to 7 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

ANZ250-254>256-210445-
/O.CAN.KBOX.SC.Y.0150.000000T0000Z-181121T1100Z/
/O.UPG.KBOX.GL.A.0037.181121T2100Z-181123T0000Z/
/O.NEW.KBOX.GL.W.0050.181121T2100Z-181123T0000Z/
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-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
337 PM EST Tue Nov 20 2018

...GALE WARNING IN EFFECT FROM 4 PM WEDNESDAY TO 7 PM EST
THURSDAY...
...SMALL CRAFT ADVISORY IS CANCELLED...

The National Weather Service in Boston/Norton has issued a Gale
Warning, which is in effect from 4 PM Wednesday to 7 PM EST
Thursday. The Small Craft Advisory has been cancelled. The Gale
Watch is no longer in effect.

* WINDS AND SEAS...Northwest winds 20 to 30 kt with gusts up to 
  40 kt. Seas 7 to 10 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

ANZ230-236-210445-
/O.NEW.KBOX.SC.Y.0151.181121T1700Z-181122T0000Z/
/O.EXT.KBOX.GL.A.0037.181122T0000Z-181123T0000Z/
Boston Harbor-Narragansett Bay-
337 PM EST Tue Nov 20 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON TO 7 PM EST
WEDNESDAY...
...GALE WATCH NOW IN EFFECT FROM WEDNESDAY EVENING THROUGH
THURSDAY EVENING...

The National Weather Service in Boston/Norton has issued a Small
Craft Advisory, which is in effect from noon to 7 PM EST
Wednesday.

* WINDS AND SEAS...Northwest winds 10 to 20 kt with gusts up to 
  35 kt. Waves 2 to 4 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

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

Area Forecast Discussion
National Weather Service Boston/Norton MA
338 PM EST Mon Nov 19 2018

.SYNOPSIS...
Developing storm center tonight through Tuesday night will
bring accumulating snows mainly along and N of the MA-Turnpike,
impacting the Tuesday AM commute for some. Otherwise an all rain
or rain/snow mix. Colder weather follows for Wednesday into
Friday, with the possibility of some snow squalls Wednesday.

&&

.NEAR TERM /UNTIL MIDNIGHT TONIGHT/...
230 pm update...

Break in the action. Between the waves, quiet conditions prevailing.
But precipitation moving back in during the evening hours, becoming
widespread towards midnight. Overall light to start, and we've got
some warmer air to overcome out ahead. Anticipating a start to
snow for the high terrain whereas as lower elevations around the
Berkshires and Worcester Hills it'll start off as a rain / snow
mix prior to the lower column cooling and snow prevailing. N winds
will be driving through this forecast period, no longer light and
variable, and likely wet-bulbing will prevail. Most of the impacts
along and N of the MA-pike, can't rule out some travel hazard
conditions developing especially in the way of reduced visibility.

&&

.SHORT TERM /MIDNIGHT TONIGHT THROUGH TUESDAY NIGHT/...
Tonight through Tuesday...

Strengthening storm system across New England bringing accumulating
around 3-inch snows mostly N of the MA Turnpike, especially the high
terrain. Tuesday AM travel impacts with reduced visibility and snow
on area roadways for those areas noted.

Synoptically. Initial low sweeps New England with maturation further
downstream. Mainly open wave, not so much closed H925-85, tracking
over interior New England around the MA / VT / NH border, low level
convergent focus of the anti-cyclonic warm-moist conveyor belt out
ahead of a digging, sharpening mid-level trof axis and accompanying
vortmax energy. Initiated low to mid level thermal packing as well
as deformation / frontogenesis beneath mid-level ascent and initial
diffluence aloft, majority low-level forcing up thru the dendritic
growth zone, H6-7, so not impressively deep. Omega values through
the column weak, especially through the dendritic growth zone which
happens to exhibit some fairly steep lapse rates. Overall, a decent
front-end thump leading out ahead of the surface to H85 low. The
storm becomes better organized through Tuesday as it exits into the
Gulf of Maine having swept across the Cape Cod Canal around 1 pm.

Challenges. Thermal fields / thickness tell the story. Right on the
freezing cusp with deeper Arctic air absence N, hardly a N/NE high
over Canada. While N isallobaric flow, it'll only drain S surface
temperatures ranging around 30 with dewpoints a tad lower such that
wet-bulbing can only do so much. Low-level column nearly isothermal
up through H8, warmer air intruding as the H925-85 flow flutters
along the MA / NH / VT border, possibly some drier air working in
through the dendritic growth zone, while fluttering around freezing
as the event evolves into the daylight hours, dealing with forecast
headaches concerning precipitation types and snowfall accumulations
as well as snowfall intensity. Speaking of, as model forecast mass
fields look pretty similar, small-scale focusing forcing mechanisms
vary as discerned via model forecast plume diagrams. Considerable
spread in respect to liquid-equivalent precipitation and snowfall,
the latter ranging from sub-advisory to warning levels in particular
locations. Relates back to snowfall intensity, some low probability
of 1"/hr noted in high-res guidance, and thermal field alignment as
to where the rain / snow cut-off line will be at any one particular
time. Forcing majority is, however, below the dendritic growth zone
with this synoptic setup. Of last note, model forecasts assume that
everything which falls accumulates on the ground which we know is
not always the case. So it's definitely not easy but we're going to
do our best as we always do.

Decisions. Despite uncertainties and challenges noted, a consensus
weighted forecast does not seem like a bad idea. Gave greater weight
towards the HREF blended within. With probabilities noted, and the
19.12z forecast suite slightly jogging S, focus is around the MA /
NH / VT border. Coating N of the MA-pike, with 1-3" lower elevations
while 3-6" higher, 500 feet and above especially. Potentially near
warning-level snows up around the N MA towns of Ashburnham, Ashby,
and Townsend. Keep with present N/W MA WINTER WEATHER ADVISORIES.
The storm center sweeping NE across the Cape Cod Canal important
with respect to blustery N/NE winds out ahead.

Impacts. Expect hazardous travel over N/W MA especially the higher
terrain of Worcester Hills and Berkshires. Route 2, western-half of
MA I-90, N MA I-95, I-190 out of Worcester, and the NW beltway of
495 all have the risk of accumulating snows on roadways. Reduced
visibility as well especially within any moderate to heavy snow as
near 1"/hr snowfall rates are possible. Thinking a very low risk of
any mixed wintry precip-types mainly in the form of freezing rain.

Tuesday night...

Turning colder and drier. The storm continuing to deepen into the
Gulf of ME, blustery NW winds follow. Some lingering snow showers
possible, especially for the high terrain. Otherwise the main storm
is the driving cold along with breezy conditions that'll make it
feel 5 to 10 degrees colder than the forecast nighttime lows around
the low to mid 20s, possibly upper teens for the high terrain.

&&

.LONG TERM /WEDNESDAY THROUGH MONDAY/...
4 AM update...

Highlights...

* Arctic front late Wed with snow squalls possible
* Near record cold & bitterly cold wind chills Wed night/Thanksgiving
* Moderating temps and dry Friday into Saturday
* Wintry weather possible Sunday

Overview and model preferences...
The longwave trof which has been a persistent player in the
daily sensible wx across the northeast finally gets a break
later this period, but not before one last push of cold air. Two
mid lvl cutoffs Fujiwhara near Hudson's Bay with one and its
attendant vort-max sliding close to New England Wed into Thu.
The surface reflection is an arctic cold frontal passage Wed.
This ushers in a very anomalous airmass with H85 temps nearly
-20C below seasonal normal values which will be with us for
Thursday into Saturday. Upper lvl ridge finally shifts E,
shifting the trof offshore by the weekend. However, it too
flattens as a second wave, linked more closely to the southern
stream per latest guidance moves in late weekend into early next
week. Given the guidance has been in fairly good agreement with
this arctic influenced pattern a consensus blend will be used
except for temperatures, which will feature the coldest of the
guidance Wed-Fri.

Details...

Wed...
Arctic cold frontal passage linked to acute, cyclonically-
curved shortwave rotating through the base of the longwave trof
mentioned above. The main issue will be the risk for snow
squalls. Soundings indicate a sfc-H7 which is both moist and
with potentially higher than dry-adiabatic lapse rates. With
this implied instability, cold air aloft and strong dynamic
cooling in play, could very well see brief bursts of heavy snow
impacting commuters. LLJ at the top of this well mixed layer is
around 40 kt, which could mix down some of this momentum to
accompany the snow. Hence the risk for squalls, this will be
something to watch given the typically busy travel day.

Thu...
Core of cold air working E but as nearly 1040mb high pres and
deepening low pres in the Maritimes combine to yield strong
pres rises note very breezy 20-30 kt winds at times as well.
Ambient mixed temps will struggle to break out of the teens and
low 20s, but with winds, expecting chill values int the single
digits to near 0F. With pres gradient weakening late Thu night,
some radiational cooling should allow ambient 2m mins to drop
into the single digits as well. Ocean effect SN for the outer
arm of the Cape particularly thanks to +15C SST-H85 delta-T
values.

Fri and Sat...
Core of high pres slides across New England with the
continuation of dry wx. Temps moderate but remain well below
normal on Fri, with highs only making it into the upper 20s to
low 30s. Overnight mins still cold given good setup for
radiational cooling once again. Highs moderate further Sat,
reaching the low-mid 40s thanks to increase in mid lvl temps.

Sun into Mon...
Will be monitoring low pres development in convection near the
Gulf of Mexico, linked to a S stream shortwave. The track of
this feature is still uncertain given wide model spread and the
features not well sampled at this time. This will dictate
whether its an inland passage (warmer solution) or offshore
track (colder, but also a risk for a miss). Exact p-type details
will be worked out with time.

&&

.AVIATION /21Z MONDAY THROUGH SATURDAY/...
Forecaster Confidence Levels...

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

Short Term /through Tuesday Night/...High Confidence.

Rest of today...
Mix MVFR to low-end VFR. Will hold IFR for the high terrain and
closer to the MA / NH / VT border with respect to CIGs and VSBYs.
Light winds overall. Pockets -FZRA for high terrain terminals
through 16z, otherwise -RA lingering through early afternoon
then a break before the next storm into this evening.

Tonight and Tuesday...

A mix of MVFR-IFR to start except SE New England terminals,
conditions lowering with onset RA/SN. SN for N/W MA terminals
especially over the high terrain. RA/SN mix around the MA-pike
while rain elsewhere or transitioning to rain. VSBYs more than
likely impacted by SN. Can't rule out IFR-LIFR conditions. N
winds prevailing, stronger NE along the E MA coastline as a
storm center passes over the Cape Cod Canal around 18z. Gusts up
around 25 kts possible for E coastline terminals.

Tuesday night...

Winds shifting NW as conditions improve towards VFR, the 18z
storm center lifting out into the Gulf of ME. Gusts up to around
25 kts possible especially over the high terrain and along
coastline terminals.

KBOS Terminal...
A break but CIGs only lifting 2-3 kft with a lull in outcomes from
earlier -RA. Then looking at lowering conditions evening and over-
night with SNRA mix through early morning before changing over to
all RA. MVFR-IFR CIGs and VSBYs with increasing N/NE winds through
the day shifting NW into evening and overnight. Gusts potentially
as high as 25 kts with NE winds around 18z before turning NW and
remaining blustery.

KBDL Terminal...
Keep MVFR prevailing. Then lower conditions moving back in towards
evening continuing through overnight. RASN mix right through the
Tuesday morning push, becoming all rain towards midday. Mostly IFR,
improving MVFR to VFR late Tuesday into Tuesday evening. N winds
throughout shifting NW late. Somewhat breezy, especially late with
potential gusts up to 20 kts.

Outlook /Wednesday through Saturday/...

Wednesday: Mainly VFR, with local IFR possible. Windy with
gusts to 35 kt. Isolated SHSN.

Wednesday Night through Thanksgiving Day: VFR. Windy with gusts
to 35 kt.

Thursday Night: VFR. Windy with areas gusts to 30 kt.

Friday: VFR.

Friday Night: VFR. Breezy.

Saturday: Mainly VFR, with areas MVFR possible. Chance SHRA or
SHSN.

&&

.MARINE...
Forecaster Confidence Levels...

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

Short Term /through Tuesday Night/...High confidence.

Storm center passing over the Cape Cod Canal around 18z Tuesday.
Will see increasing E/NE winds out ahead especially over the E
waters, S/SW for the S waters. Behind the storm center, winds
turning NW, remaining blustery. Throughout, gusts up around 25
kts possible. Can't rule out near gale force gusts. SMALL CRAFT
HEADLINES in effect for the later-half of Tuesday going into
Tuesday night as seas build up around 5 to 7 feet on the outer
waters.

Outlook /Wednesday through Saturday/...

Wednesday: Low risk for gale force winds with gusts up to
35 kt. Seas up to 5 ft. Isolated snow showers. Local visibility
1 to 3 nm.

Wednesday Night: Moderate risk for gale force winds with gusts
up to 40 kt. Rough seas up to 10 ft. Isolated snow showers.
Areas of visibility 1 to 3 nm.

Thanksgiving Day: Strong winds with gusts up to 35 kt. Rough
seas up to 10 ft. Isolated snow showers. Areas of visibility
1 to 3 nm.

Thursday Night: Moderate risk for Small Craft Advisory winds
with gusts up to 30 kt. Local rough seas. Local visibility 1 to
3 nm.

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

Friday Night: Winds less than 25 kt.

Saturday: Winds less than 25 kt. Slight chance of rain showers.

&&

.CLIMATE...
With the potential of the coldest air of the season moving into
the region around Thanksgiving, here are the record temperatures
for November 22nd and the holiday of Thanksgiving.

November 22nd
Location / Record Low / Record Minimum High

Boston..........9 (1879) / 24 (1880)
Hartford.......14 (1969) / 27 (1978)
Providence.....16 (1987) / 30 (2008)
Worcester......11 (1987) / 24 (2008)

Thanksgiving
Location / Record Low / Record Minimum High

Boston.........11 (Nov 27, 1873) / 24 (Nov 28, 1901)
Hartford.......12 (Nov 28, 2002) / 27 (Nov 23, 1989)
Providence.....14 (Nov 23, 1972) / 30 (Nov 28, 1996)
Worcester.......9 (Nov 23, 1989) / 22 (Nov 23, 1989)

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...Winter Weather Advisory from 10 PM this evening to 5 PM EST
     Tuesday for MAZ002>004-008-009-026.
RI...None.
MARINE...Gale Watch from Wednesday evening through Thursday morning for
     ANZ231>234-251.
     Small Craft Advisory from 4 PM Tuesday to 4 AM EST Wednesday
     for ANZ232>234.
     Small Craft Advisory from 1 PM Tuesday to 1 AM EST Wednesday
     for ANZ231-251.
     Gale Watch from Wednesday afternoon through Thursday morning
     for ANZ235-237.
     Small Craft Advisory from 4 PM Tuesday to 6 AM EST Wednesday
     for ANZ235-237.
     Gale Watch from Wednesday afternoon through Thursday evening
     for ANZ250-254>256.
     Small Craft Advisory from 10 AM Tuesday to 6 AM EST Wednesday
     for ANZ250.
     Small Craft Advisory from 1 PM Tuesday to 6 AM EST Wednesday
     for ANZ254>256.

&&

SYNOPSIS...Nocera/Doody
NEAR TERM...Sipprell
SHORT TERM...Sipprell
LONG TERM...Doody
AVIATION...Doody/Sipprell
MARINE...Doody/Sipprell
CLIMATE...staff

Hazardous Weather Outlook
National Weather Service Boston/Norton MA
341 PM EST Mon Nov 19 2018

MAZ002>004-008-009-026-202045-
Western Franklin MA-Eastern Franklin MA-Northern Worcester MA-
Western Hampshire MA-Western Hampden MA-Northern Middlesex MA-
341 PM EST Mon Nov 19 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 5 PM
EST TUESDAY...

This Hazardous Weather Outlook is for central Massachusetts,
eastern Massachusetts and western Massachusetts.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Weather Advisory.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Weather Advisory.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

CTZ002>004-MAZ005>007-010>024-RIZ001>008-202045-
Hartford CT-Tolland CT-Windham CT-Central Middlesex MA-
Western Essex MA-Eastern Essex MA-Eastern Hampshire MA-
Eastern Hampden MA-Southern Worcester MA-Western Norfolk MA-
Southeast Middlesex MA-Suffolk MA-Eastern Norfolk MA-
Northern Bristol MA-Western Plymouth MA-Eastern Plymouth MA-
Southern Bristol MA-Southern Plymouth MA-Barnstable MA-Dukes MA-
Nantucket MA-Northwest Providence RI-Southeast Providence RI-
Western Kent RI-Eastern Kent RI-Bristol RI-Washington RI-Newport RI-
Block Island RI-
341 PM EST Mon Nov 19 2018

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

.DAY ONE...This afternoon and tonight.

Tonight...

No hazardous weather is not expected.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Monday night into Tuesday...

Rain may change over to snow Tuesday morning before ending Tuesday
afternoon. Some impact to travel is possible especially north and
west of I-95.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

ANZ250-254>256-202045-
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-
Coastal Waters from Montauk NY to Marthas Vineyard extending out to
20 nm South of Block Island-
341 PM EST Mon Nov 19 2018

...GALE WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY
EVENING...

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

.DAY ONE...This afternoon and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Gale Watch.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ231>234-251-202045-
Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay-
Massachusetts Bay and Ipswich Bay-
341 PM EST Mon Nov 19 2018

...GALE WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY
MORNING...

This Hazardous Weather Outlook is for Massachusetts coastal waters.

.DAY ONE...This afternoon and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Gale Watch.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ235-237-202045-
Rhode Island Sound-Block Island Sound-
341 PM EST Mon Nov 19 2018

...GALE WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY
MORNING...

This Hazardous Weather Outlook is for Rhode Island coastal waters.

.DAY ONE...This afternoon and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Gale Watch.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ230-236-202045-
Boston Harbor-Narragansett Bay-
341 PM EST Mon Nov 19 2018

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

.DAY ONE...This afternoon and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

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

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