Winter Storm Warning 4, NWS Boston/Norton, MA

296 
WWUS41 KBOX 050321
WSWBOX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Boston/Norton MA
1021 PM EST Fri Dec 4 2020

MAZ004-012-026-051130-
/O.CON.KBOX.WS.W.0004.201205T1200Z-201206T1200Z/
Northern Worcester MA-Southern Worcester MA-Northern Middlesex MA-
Including the cities of Barre, Fitchburg, Milford, Worcester, 
and Ayer
1021 PM EST Fri Dec 4 2020

...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM SATURDAY TO
7 AM EST SUNDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 6 to 
  12 inches. Winds gusting as high as 45 mph.

* WHERE...Worcester and northwest Middlesex Counties.

* WHEN...From 7 AM Saturday to 7 AM EST Sunday.

* IMPACTS...The wet snow may result in numerous power outages with
  some downed trees if the higher snow totals are realized. Travel
  could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

&&

$$

MAZ002-003-005-006-008>011-014-051130-
/O.CON.KBOX.WS.A.0003.201205T1200Z-201206T1200Z/
Western Franklin MA-Eastern Franklin MA-Central Middlesex MA-
Western Essex MA-Western Hampshire MA-Western Hampden MA-
Eastern Hampshire MA-Eastern Hampden MA-Southeast Middlesex MA-
Including the cities of Charlemont, Greenfield, Orange, 
Framingham, Lowell, Lawrence, Chesterfield, Blandford, Amherst, 
Northampton, Springfield, and Cambridge
1021 PM EST Fri Dec 4 2020

...WINTER STORM WATCH REMAINS IN EFFECT FROM 7 AM EST SATURDAY
THROUGH SUNDAY MORNING...

* WHAT...Rain changing to heavy snow. Total snow accumulations of
  4 to 8 inches possible. Winds could gust as high as 45 mph.

* WHERE...Portions of interior Massachusetts.

* WHEN...From Saturday morning through Saturday night.

* IMPACTS...Scattered power outages and some downed trees possible
  from the wet snow especially if the higher amounts are realized. Travel
  could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$

CTZ003-004-051130-
/O.CON.KBOX.WS.A.0003.201205T1200Z-201206T1200Z/
Tolland CT-Windham CT-
Including the cities of Union, Vernon, Putnam, and Willimantic
1021 PM EST Fri Dec 4 2020

...WINTER STORM WATCH REMAINS IN EFFECT FROM 7 AM EST SATURDAY
THROUGH SUNDAY MORNING...

* WHAT...Rain changing to heavy wet snow. Total snow 
  accumulations of 4 to 9 inches possible with the larger amounts 
  most likely in the high terrain of northeast Connecticut. Winds 
  could gust as high as 40 mph.

* WHERE...Windham and Tolland Counties.

* WHEN...From Saturday morning through Saturday night.

* IMPACTS...Scattered power outages and some downed trees possible
  from the wet snow especially if the higher amounts are realized.
  Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$

693 
WWUS41 KBOX 050748
WSWBOX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Boston/Norton MA
248 AM EST Sat Dec 5 2020

MAZ014-051600-
/O.UPG.KBOX.WS.A.0003.201205T1200Z-201206T1200Z/
/O.EXB.KBOX.WS.W.0004.201205T1800Z-201206T1200Z/
Southeast Middlesex MA-
Including the city of Cambridge
248 AM EST Sat Dec 5 2020

...WINTER STORM WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO
7 AM EST SUNDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 8  
  inches. Winds gusting as high as 45 mph.

* WHERE...Southeast Middlesex MA County.

* WHEN...From 1 PM this afternoon to 7 AM EST Sunday.

* IMPACTS...Scattered power outages and some downed trees 
  possible from the wet snow especially if the higher amounts 
  are realized. Travel could be very difficult.

* ADDITIONAL DETAILS...Rain changing to heavy snow by mid or late
  afternoon. Snowfall rates may reach 1 to 2 inches per hour. Snow
  tapering off by midnight.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

&&

$$

MAZ007-013-015-RIZ001-051600-
/O.EXB.KBOX.WS.W.0004.201205T1800Z-201206T1200Z/
Eastern Essex MA-Western Norfolk MA-Suffolk MA-
Northwest Providence RI-
Including the cities of Gloucester, Foxborough, Norwood, Boston, 
Foster, and Smithfield
248 AM EST Sat Dec 5 2020

...WINTER STORM WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO
7 AM EST SUNDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 8
  inches. Winds gusting as high as 45 mph, but up to 60 mph over
  Cape Ann.

* WHERE...In Massachusetts, Eastern Essex MA, Western Norfolk MA 
  and Suffolk MA Counties. In Rhode Island, Northwest Providence 
  RI County.

* WHEN...From 1 PM this afternoon to 7 AM EST Sunday.

* IMPACTS...The wet snow may result in numerous power outages 
  with some downed trees if the higher snow totals are realized. 
  Travel could be very difficult.

* ADDITIONAL DETAILS...Rain changing to heavy snow by mid or late
  afternoon. Snowfall rates may reach 1 to 2 inches per hour. Snow
  tapering off by midnight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

&&

$$

MAZ005-006-051600-
/O.UPG.KBOX.WS.A.0003.201205T1200Z-201206T1200Z/
/O.EXA.KBOX.WS.W.0004.201205T1200Z-201206T1200Z/
Central Middlesex MA-Western Essex MA-
Including the cities of Framingham, Lowell, and Lawrence
248 AM EST Sat Dec 5 2020

...WINTER STORM WARNING IN EFFECT FROM 7 AM THIS MORNING TO 7 AM
EST SUNDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 6 to 
  12 inches. Winds gusting as high as 45 mph.

* WHERE...Central Middlesex MA and Western Essex MA Counties.

* WHEN...From 7 AM this morning to 7 AM EST Sunday.

* IMPACTS...The wet snow may result in numerous power outages with
  some downed trees if the higher snow totals are realized. Travel
  could be very difficult.

* ADDITIONAL DETAILS...Rain changing to heavy snow by mid
  afternoon. Snowfall rates may reach 1 to 2 inches per hour. 
  Snow tapering off by midnight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

&&

$$

CTZ003-004-MAZ003-010-011-051600-
/O.UPG.KBOX.WS.A.0003.201205T1200Z-201206T1200Z/
/O.EXA.KBOX.WS.W.0004.201205T1200Z-201206T1200Z/
Tolland CT-Windham CT-Eastern Franklin MA-Eastern Hampshire MA-
Eastern Hampden MA-
Including the cities of Union, Vernon, Putnam, Willimantic, 
Greenfield, Orange, Amherst, Northampton, and Springfield
248 AM EST Sat Dec 5 2020

...WINTER STORM WARNING IN EFFECT FROM 7 AM THIS MORNING TO 7 AM
EST SUNDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 10
  inches. Winds gusting as high as 35 mph.

* WHERE...In Connecticut, Tolland CT and Windham CT Counties. In 
  Massachusetts, Eastern Franklin MA, Eastern Hampshire MA and 
  Eastern Hampden MA Counties.

* WHEN...From 7 AM this morning to 7 AM EST Sunday.

* IMPACTS...Scattered power outages and some downed trees 
  possible from the wet snow especially if the higher amounts 
  are realized. Travel could be very difficult.

* ADDITIONAL DETAILS...Rain changing to a period of heavy snow
  around midday. Snowfall rates up to one inch per hour are
  possible. Snow tapering off by early evening.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

&&

$$

MAZ004-012-026-051600-
/O.CON.KBOX.WS.W.0004.201205T1200Z-201206T1200Z/
Northern Worcester MA-Southern Worcester MA-Northern Middlesex MA-
Including the cities of Barre, Fitchburg, Milford, Worcester, 
and Ayer
248 AM EST Sat Dec 5 2020

...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING
TO 7 AM EST SUNDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 8 to 14
  inches. Winds gusting as high as 35 mph.

* WHERE...Worcester and northwest Middlesex Counties.

* WHEN...From 7 AM Saturday to 7 AM EST Sunday.

* IMPACTS...The wet snow may result in numerous power outages 
  with some downed trees if the higher snow totals are realized. 
  Travel could be very difficult.

* ADDITIONAL DETAILS...Rain changing to snow from late morning to
  early afternoon. Snow heavy at times this afternoon with 
  snowfall rates 1 to 2 inches per hour. Snow tapering off this 
  evening. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

&&

$$

MAZ002-008-009-051600-
/O.UPG.KBOX.WS.A.0003.201205T1200Z-201206T1200Z/
/O.NEW.KBOX.WW.Y.0011.201205T1200Z-201206T0000Z/
Western Franklin MA-Western Hampshire MA-Western Hampden MA-
Including the cities of Charlemont, Chesterfield, and Blandford
248 AM EST Sat Dec 5 2020

...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM THIS MORNING TO
7 PM EST THIS EVENING...

* WHAT...Snow expected. Total snow accumulations of 2 to 4 inches.
  Winds gusting as high as 35 mph. 

* WHERE...Western Franklin MA, Western Hampshire MA and Western 
  Hampden MA Counties.

* WHEN...From 7 AM this morning to 7 PM EST this evening.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Rain changing to snow this morning then
  tapering off by late afternoon.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

&&

$$

MAZ016>019-RIZ002>004-051600-
/O.NEW.KBOX.WW.Y.0011.201205T1800Z-201206T0600Z/
Eastern Norfolk MA-Northern Bristol MA-Western Plymouth MA-
Eastern Plymouth MA-Southeast Providence RI-Western Kent RI-
Eastern Kent RI-
Including the cities of Quincy, Taunton, Brockton, Plymouth, 
Providence, Coventry, West Greenwich, East Greenwich, Warwick, 
and West Warwick
248 AM EST Sat Dec 5 2020

...WINTER WEATHER ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO
1 AM EST SUNDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 5 inches.
  Winds gusting to 45 to 55 mph, strongest gusts over coastal
  Plymouth county.

* WHERE...Portions of Rhode Island and eastern and southeastern
  Massachusetts.

* WHEN...From 1 PM this afternoon to 1 AM EST Sunday.

* IMPACTS...Plan on slippery road conditions. Strong winds
  combined with heavy wet snow could cause tree damage and 
  isolated power outages. 

* ADDITIONAL DETAILS...Rain changing to snow late this afternoon.
  A brief period of heavy snow is possible before tapering off
  before midnight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

&&

$$

CTZ002-051600-
/O.NEW.KBOX.WW.Y.0011.201205T1200Z-201206T0000Z/
Hartford CT-
Including the cities of Hartford and Windsor Locks
248 AM EST Sat Dec 5 2020

...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM THIS MORNING TO
7 PM EST THIS EVENING...

* WHAT...Snow expected. Total snow accumulations of 1 to 4 
  inches. Winds gusting as high as 35 mph.

* WHERE...Hartford CT County.

* WHEN...From 7 AM this morning to 7 PM EST this evening.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Rain changing to snow by early afternoon
  morning then tapering off late this afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

&&

$$

685 
WWUS41 KBOX 051539
WSWBOX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Boston/Norton MA
1039 AM EST Sat Dec 5 2020

MAZ004>006-012-026-052130-
/O.CON.KBOX.WS.W.0004.000000T0000Z-201206T1200Z/
Northern Worcester MA-Central Middlesex MA-Western Essex MA-
Southern Worcester MA-Northern Middlesex MA-
Including the cities of Barre, Fitchburg, Framingham, Lowell, 
Lawrence, Milford, Worcester, and Ayer
1039 AM EST Sat Dec 5 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...Heavy snow. Additional snow accumulations of 7 to 12 
  inches. Winds gusting as high as 45 mph.

* WHERE...Southern Worcester MA, Western Essex MA, Northern 
  Worcester MA, Central Middlesex MA and Northern Middlesex MA 
  Counties.

* WHEN...Until 7 AM EST Sunday.

* IMPACTS...Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

&&

$$

CTZ003-004-MAZ003-010-011-052130-
/O.CON.KBOX.WS.W.0004.000000T0000Z-201206T1200Z/
Tolland CT-Windham CT-Eastern Franklin MA-Eastern Hampshire MA-
Eastern Hampden MA-
Including the cities of Union, Vernon, Putnam, Willimantic, 
Greenfield, Orange, Amherst, Northampton, and Springfield
1039 AM EST Sat Dec 5 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...Heavy snow. Additional snow accumulations of 1 to 7 
  inches. Winds gusting as high as 40 mph.

* WHERE...In Connecticut, Tolland CT and Windham CT Counties. In 
  Massachusetts, Eastern Hampden MA, Eastern Hampshire MA and 
  Eastern Franklin MA Counties.

* WHEN...Until 7 AM EST Sunday.

* IMPACTS...Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

&&

$$

MAZ007-013>015-RIZ001-052130-
/O.CON.KBOX.WS.W.0004.201205T1800Z-201206T1200Z/
Eastern Essex MA-Western Norfolk MA-Southeast Middlesex MA-
Suffolk MA-Northwest Providence RI-
Including the cities of Gloucester, Foxborough, Norwood, 
Cambridge, Boston, Foster, and Smithfield
1039 AM EST Sat Dec 5 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 2 to 9 
  inches. Winds gusting as high as 55 mph.

* WHERE...In Massachusetts, Suffolk MA, Southeast Middlesex MA, 
  Western Norfolk MA and Eastern Essex MA Counties. In Rhode 
  Island, Northwest Providence RI County.

* WHEN...Until 7 AM EST Sunday.

* IMPACTS...Travel could be very difficult. Strong winds could 
  cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

&&

$$

MAZ016>019-RIZ002>004-052130-
/O.CON.KBOX.WW.Y.0011.201205T1800Z-201206T0600Z/
Eastern Norfolk MA-Northern Bristol MA-Western Plymouth MA-
Eastern Plymouth MA-Southeast Providence RI-Western Kent RI-
Eastern Kent RI-
Including the cities of Quincy, Taunton, Brockton, Plymouth, 
Providence, Coventry, West Greenwich, East Greenwich, Warwick, 
and West Warwick
1039 AM EST Sat Dec 5 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM EST
SUNDAY...

* WHAT...Snow expected. Total snow accumulations of up to 5 
  inches. Winds gusting as high as 55 mph.

* WHERE...Portions of eastern and southeastern Massachusetts and 
  northern Rhode Island.

* WHEN...Until 1 AM EST Sunday.

* IMPACTS...Plan on slippery road conditions. Strong winds could 
  cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

&&

$$

CTZ002-MAZ002-008-009-052130-
/O.CON.KBOX.WW.Y.0011.000000T0000Z-201206T0000Z/
Hartford CT-Western Franklin MA-Western Hampshire MA-
Western Hampden MA-
Including the cities of Hartford, Windsor Locks, Charlemont, 
Chesterfield, and Blandford
1039 AM EST Sat Dec 5 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches. 
  Winds gusting as high as 40 mph.

* WHERE...In Connecticut, Hartford CT County. In Massachusetts, 
  Western Hampshire MA, Western Hampden MA and Western Franklin 
  MA Counties.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

&&

$$

330 
WWUS41 KBOX 052053
WSWBOX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Boston/Norton MA
353 PM EST Sat Dec 5 2020

MAZ004>006-012-026-060900-
/O.CON.KBOX.WS.W.0004.000000T0000Z-201206T1200Z/
Northern Worcester MA-Central Middlesex MA-Western Essex MA-
Southern Worcester MA-Northern Middlesex MA-
Including the cities of Barre, Fitchburg, Framingham, Lowell, 
Lawrence, Milford, Worcester, and Ayer
353 PM EST Sat Dec 5 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...Heavy snow. Additional snow accumulations of 3 to 5 
  inches. Winds gusting as high as 45 mph.

* WHERE...Southern Worcester MA, Western Essex MA, Northern 
  Worcester MA, Central Middlesex MA and Northern Middlesex MA 
  Counties.

* WHEN...Until 7 AM EST Sunday.

* IMPACTS...Plan on slippery road conditions. Gusty winds could 
  bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

&&

$$

CTZ003-004-MAZ003-010-011-060900-
/O.CON.KBOX.WS.W.0004.000000T0000Z-201206T1200Z/
Tolland CT-Windham CT-Eastern Franklin MA-Eastern Hampshire MA-
Eastern Hampden MA-
Including the cities of Union, Vernon, Putnam, Willimantic, 
Greenfield, Orange, Amherst, Northampton, and Springfield
353 PM EST Sat Dec 5 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...Heavy snow. Additional snow accumulations of up to 4 
  inches. Winds gusting as high as 45 mph.

* WHERE...In Connecticut, Tolland CT and Windham CT Counties. In 
  Massachusetts, Eastern Hampden MA, Eastern Hampshire MA and 
  Eastern Franklin MA Counties.

* WHEN...Until 7 AM EST Sunday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

&&

$$

MAZ007-013>015-RIZ001-060900-
/O.CON.KBOX.WS.W.0004.000000T0000Z-201206T1200Z/
Eastern Essex MA-Western Norfolk MA-Southeast Middlesex MA-
Suffolk MA-Northwest Providence RI-
Including the cities of Gloucester, Foxborough, Norwood, 
Cambridge, Boston, Foster, and Smithfield
353 PM EST Sat Dec 5 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...Heavy snow. Additional snow accumulations of up to 5 
  inches. Winds gusting as high as 55 mph.

* WHERE...In Massachusetts, Suffolk MA, Southeast Middlesex MA, 
  Western Norfolk MA and Eastern Essex MA Counties. In Rhode 
  Island, Northwest Providence RI County.

* WHEN...Until 7 AM EST Sunday.

* IMPACTS...Plan on slippery road conditions. Strong winds could 
  cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

&&

$$

MAZ016>019-RIZ002>004-060600-
/O.CON.KBOX.WW.Y.0011.000000T0000Z-201206T0600Z/
Eastern Norfolk MA-Northern Bristol MA-Western Plymouth MA-
Eastern Plymouth MA-Southeast Providence RI-Western Kent RI-
Eastern Kent RI-
Including the cities of Quincy, Taunton, Brockton, Plymouth, 
Providence, Coventry, West Greenwich, East Greenwich, Warwick, 
and West Warwick
353 PM EST Sat Dec 5 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM EST
SUNDAY...

* WHAT...Snow. Additional snow accumulations of up to 3 inches. 
  Winds gusting as high as 55 mph.

* WHERE...Portions of eastern and southeastern Massachusetts and 
  northern Rhode Island.

* WHEN...Until 1 AM EST Sunday.

* IMPACTS...Plan on slippery road conditions. Strong winds could 
  cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

&&

$$

CTZ002-MAZ002-008-009-060000-
/O.CON.KBOX.WW.Y.0011.000000T0000Z-201206T0000Z/
Hartford CT-Western Franklin MA-Western Hampshire MA-
Western Hampden MA-
Including the cities of Hartford, Windsor Locks, Charlemont, 
Chesterfield, and Blandford
353 PM EST Sat Dec 5 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Snow. Additional snow accumulations of up to two 
  inches. Winds gusting as high as 40 mph.

* WHERE...In Connecticut, Hartford CT County. In Massachusetts, 
  Western Hampshire MA, Western Hampden MA and Western Franklin 
  MA Counties.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

&&

$$

022 
WWUS41 KBOX 060051
WSWBOX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Boston/Norton MA
751 PM EST Sat Dec 5 2020

CTZ003-004-MAZ003>007-010>015-026-RIZ001-060200-
/O.CAN.KBOX.WS.W.0004.000000T0000Z-201206T1200Z/
Tolland CT-Windham CT-Eastern Franklin MA-Northern Worcester MA-
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-
Northern Middlesex MA-Northwest Providence RI-
Including the cities of Union, Vernon, Putnam, Willimantic, 
Greenfield, Orange, Barre, Fitchburg, Framingham, Lowell, 
Lawrence, Gloucester, Amherst, Northampton, Springfield, Milford,
Worcester, Foxborough, Norwood, Cambridge, Boston, Ayer, Foster, 
and Smithfield
751 PM EST Sat Dec 5 2020

...WINTER STORM WARNING IS CANCELLED...

Although snow will continue, significant accumulations are not
expected through the end of the event.


$$

MAZ016>019-RIZ002>004-060200-
/O.CAN.KBOX.WW.Y.0011.000000T0000Z-201206T0600Z/
Eastern Norfolk MA-Northern Bristol MA-Western Plymouth MA-
Eastern Plymouth MA-Southeast Providence RI-Western Kent RI-
Eastern Kent RI-
Including the cities of Quincy, Taunton, Brockton, Plymouth, 
Providence, Coventry, West Greenwich, East Greenwich, Warwick, 
and West Warwick
751 PM EST Sat Dec 5 2020

...WINTER WEATHER ADVISORY IS CANCELLED...

Although snow will continue, significant accumulations are not
expected through the end of the event.

$$

Area Forecast Discussion
National Weather Service Boston/Norton MA
203 PM EST Fri Dec 4 2020

.SYNOPSIS...
A strong storm system will impact the region Saturday into
Saturday night bringing heavy rain and strong winds along the
coast, with potential for significant snow accumulation in the
interior. The storm exits Sunday, then mainly dry and colder
weather Monday and Tuesday with a moderating trend for the
middle of next week.

&&

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

Winter Storm Watch expanded into Tolland and Windham Counties in
NE CT. Seeing a bit of a westward trend in 12z guidance which
would shift heaviest snow into NE CT and central/interior NE MA,
but still uncertainty on the "edges" across western MA as well
as RI/eastern MA. Currently reviewing late guidance and
collaborating with neighboring offices and WPC to modify
snowfall forecast and consider further headline changes. Will
have more by 4 PM.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH SATURDAY NIGHT/...
* A rapidly intensifying storm system will produce gusty winds
  and heavy rain, changing to a period of accumulating snow,
  heavy at times by Saturday afternoon into evening.

A higher than usual amount of uncertainty still exists with how
exactly the potential weekend storm will unfold despite being 24 to
36 hours out. This is due to the models struggling to handle the
complex interaction of northern and southern stream energy and
potential phasing in a rather chaotic negative NAO regime. In
addition, there is a lack of cold air injection beforehand, which
means that the system has to generate its own cold air from its
sheer intensity and dynamic cooling of the atmospheric column.

We are increasingly confident of the following, however. Firstly,
the low pressure will likely track inside of the 70W/40N benchmark,
which is typically used as a reference for accumulating snow along
the I-95 corridor in RI and MA. Secondly, this is going to be a
highly dynamic system, which means despite marginal temperatures,
there will likely be a period of heavy snowfall rates from mesoscale
banding. The challenge is, however, where the axis of heavy snow
will fall and consequently, the possibility for power outages
with the loading effect of the heavy, wet snow.

With a rapidly deepening cyclone, the latent heat release from the
convection will likely lead to downstream ridging and if anything,
reinforces the possibility of a more inland track (inside the
70W/40N benchmark). The dynamics are very impressive. The guidance
is pretty much unanimous in showing 30-40 units of omega in the
dendritic snow growth zone. So we have high confidence there is
going to be a mesoscale band of 2 inches per hour snowfall rate. Of
course, the big question is where will this band set up. 00z HREF
Probability Matched Mean shows a 6-12 inches zone in Worcester
county and significantly cut down on QPF amounts in Western MA. Based
on the model trends, we boosted the snowfall amounts between
Worcester and metrowest Boston and consequently, expand the
Winter Storm Watches to along the MA/CT border and into
metrowest Boston. Nonetheless, we cannot discount the
possibility that the forecast storm track shifts west again so
we kept the Winter Storm Watches across the Western zones.

Finally, high wind potential exists, especially near the coast as
the surface cyclone rapidly deepens. This is why we hoisted a High
Wind Watch for the MA South Shore into the Cape and the Islands.

&&

.LONG TERM /SUNDAY THROUGH THURSDAY/...
200 PM Update:

Fairly quiet weather expected through the period. We are
watching another potential cutoff low from the Ohio Valley to
the mid Atlantic states early next week, but with lack of
downstream blocking this time (i.e., no ridging over Greenland)
system is likely to pass well south of New England. Did include
some chance PoPs near South Coast, Cape, and Islands but for
most part expect this system to have little impact on SNE (as of
right now, anyway). Upper flow turns more zonal for mid to late
week which should allow for temperatures to moderate into 40s
to around 50.

&&

.AVIATION /19Z FRIDAY THROUGH WEDNESDAY/...
Forecaster Confidence Levels...

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

Tonight through Saturday night...Moderate Confidence.

VFR will persist into the evening for much of the region, but
some MVFR conditions may develop south of the Pike as an area of
light rain begins to expand. Rain will have overspread most of
the region by daybreak Saturday, which low end MVFR-IFR
conditions dominating.

Biggest uncertainty will be how quickly the rain transitions to
wet snow on Sat. We should see that occur during the morning
across the Berks and Worcester Hills and then spread into much
of the lower elevations during the afternoon...at least near and
northwest of the Bos-Pvd corridor. A period of heavy wet snow
likely for at least central and interior northeast MA, but may
extend further west or into the I-95 corridor depending on the
track. 1-2 inch per hour snowfall rates are likely in the heavy
band. Therefore, we expect IFR to LIFR conditions to dominate
Saturday. NNW wind gusts will increase to between 25
and 35 knots across the interior and 35 to 45 knots along the
coastal plain late on Sat as the storm intensifies. Gusts up to
50 knots possible across Cape/Nantucket.

Precipitation will linger across eastern New England Saturday
evening. We then should see improving conditions by late
evening and especially after midnight with gradually diminishing
winds.

KBOS TAF...Moderate confidence in the TAF.

KBDL TAF...Moderate confidence in the TAF.

Outlook /Sunday through Tuesday/...

Saturday Night: Mainly VFR, with local IFR possible. Strong
winds with gusts up to 50 kt. Chance SN.

Sunday: VFR. Windy with gusts up to 35 kt.

Sunday Night: VFR. Breezy.

Monday: VFR.

Monday Night through Tuesday: VFR. Breezy.

&&

.MARINE...
* Gale Warnings for all waters Saturday into early Sunday.

A strong storm system will likely affect Southern New England
Saturday into early Sunday. Winds will be WSW to SW on Friday
with speeds of 15-20 kts and gusts of 20-25 kts. Wave heights
generally 4-6 feet with the highest waves across the outer
waters.

Winds diminish to 5-15 kts Friday night ahead of the incoming system
and the direction gradually shifts to the NE with gusts of 10-15
kts. Seas falling to 3-4 feet across the eastern waters and remain
around 4-6 feet across the southern waters.

By Saturday afternoon, seas build to 10-12 feet over the
southern waters then 11-16 feet across all waters as winds turn
northeast with a rapidly strengthening low pressure center that
is expected to track just inside the 70W/40N benchmark. Winds
will gust to over 40 kts. Storm-force gusts are not out of the
question on Saturday evening across the open waters but
confidence is not high enough for Storm headlines.

Outlook /Sunday through Tuesday/...

Saturday Night: Low risk for storm force winds with gusts up to
50 kt. Rough seas up to 17 ft. Chance of rain.

Sunday: Moderate risk for Small Craft Advisory winds with gusts
up to 30 kt. Rough seas up to 11 ft.

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

Monday: Winds less than 25 kt. Areas of seas approaching 5 ft.

Monday Night: Winds less than 25 kt. Areas of seas approaching
5 ft. Slight chance of rain.

Tuesday: Low risk for Small Craft Advisory winds with gusts up
to 25 kt. Areas of rough seas. Slight chance of rain.

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...Winter Storm Watch from Saturday morning through Sunday
     morning for CTZ003-004.
MA...High Wind Watch from Saturday afternoon through Saturday
     evening for MAZ019-022>024.
     Winter Storm Watch from Saturday morning through Sunday
     morning for MAZ002>006-008>012-014-026.
RI...None.
MARINE...Storm Warning from 1 PM Saturday to 3 AM EST Sunday for ANZ231-
     232-250-251-254>256.
     Gale Warning from 10 AM Saturday to 7 AM EST Sunday for
     ANZ233>235-237.
     Gale Warning from 10 AM Saturday to 4 AM EST Sunday for ANZ230-
     236.

&&

SYNOPSIS...Frank/JWD
NEAR TERM...Frank
SHORT TERM...Chai
LONG TERM...JWD
AVIATION...Frank/JWD
MARINE...Frank/JWD

Hazardous Weather Outlook
National Weather Service Boston/Norton MA
421 AM EST Fri Dec 4 2020

MAZ002>006-008>012-014-026-050930-
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-Southeast Middlesex MA-Northern Middlesex MA-
421 AM EST Fri Dec 4 2020

...WINTER STORM WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SUNDAY
MORNING...

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

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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

   Winter Storm Watch.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

CTZ002>004-MAZ007-013-015>018-020-021-NHZ011-012-015-RIZ001>008-
050930-
Hartford CT-Tolland CT-Windham CT-Eastern Essex MA-
Western Norfolk MA-Suffolk MA-Eastern Norfolk MA-Northern Bristol MA-
Western Plymouth MA-Southern Bristol MA-Southern Plymouth MA-
Cheshire-Eastern Hillsborough-Western And Central Hillsborough-
Northwest Providence RI-Southeast Providence RI-Western Kent RI-
Eastern Kent RI-Bristol RI-Washington RI-Newport RI-Block Island RI-
421 AM EST Fri Dec 4 2020

This Hazardous Weather Outlook is for northern Connecticut, eastern
Massachusetts, northeastern Massachusetts, southeastern
Massachusetts, New Hampshire, southern New Hampshire, and Rhode
Island.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MAZ019-022>024-050930-
Eastern Plymouth MA-Barnstable MA-Dukes MA-Nantucket MA-
421 AM EST Fri Dec 4 2020

...HIGH WIND WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SATURDAY EVENING...

This Hazardous Weather Outlook is for southeastern Massachusetts.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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

   High Wind Watch.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ230>237-250-251-254>256-050930-
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 EST Fri Dec 4 2020

...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SUNDAY
MORNING...

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...Saturday through Thursday.

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

   Gale Watch.

.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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