[Weather] [2021.12.06 Early PM UPDATE] NWS Boston EM Briefing - Strong Winds Thru Tonight, Light Accumulating Snow Wednesday

[BOX Operations - NOAA Service Account]

Good early afternoon,

We are still in the process of finalizing the forecast based on current
trends and the latest forecast guidance. However we wanted to send a short
update on weather hazards that we are monitoring for
Connecticut, Massachusetts and Rhode Island through Wednesday night.

These include strong winds tonight, and the potential for a light
accumulating snow Wednesday into Wednesday night that may bring at least
some impact to the Wednesday evening commute.

*Strong Winds: Tonight*

*Wind Advisories* remain in effect for Berkshire County, much of the South
Coast of Massachusetts and Rhode Island, eastern Plymouth County and Cape
Cod and the Islands until 1 AM Tuesday. Attached graphic sent in the
briefing sent earlier this morning remains valid. The strongest southerly
wind gusts are expected to occur now through the late-afternoon hours.

Around and after 7 PM: we have some concerns for a band of gusty showers
that will produce brief gusts from the west up to 50 mph as they move from
interior New England to the eastern and southern coasts. Sporadic, minor
tree damage could be possible as these showers move east.

While not meant to be exact, the following forecast radar image gives a
sense on the timing of arrival of these gusty showers. An
approximate timing would be 7 to 9 PM for the Berkshires, Litchfield Hills
to the Interstate 91 corridor in MA and CT, around 8 to 10 PM for central
Massachusetts into eastern portions of CT, and between 10 PM and midnight
into eastern Massachusetts and Rhode Island.

[image: Gusty Shower Timing Loop.gif]

*Light-Accumulating Snow: Wednesday into Wednesday Night*

We continue to monitor details regarding a potential light-accumulating
snowfall for Southern New England Wednesday into Wednesday night.

While we do feel confident that this storm will not bring significant or
high forecast snow amounts, the snow amounts are uncertain at this point
and will hinge on the storm's track and the time of day in which the bulk
of the snow will fall.

While some snow may fall in the morning hours, the bulk of it looks to fall
between the mid-afternoon to mid-evening hours Wednesday. We do expect some
impacts to the Wednesday PM commute, as temperatures fall and begin to
support some accumulation on pavement.

Our best estimate to be planned on is up to 2 inches across most of
Southern New England.
If snow accumulates earlier and/or storm track passes closer to Southern
New England, such a reasonable worst-case scenario would support a plowable
snowfall (3-6") for much of Southern New England. This latter worst-case
outcome is considered unlikely.



Expect a full briefing update with graphics no later than 500 PM today.

Thank You!

Meteorologists: Andrew Loconto, Kristie Smith and Frank Nocera



If you have any questions or would like more information, don't hesitate to
contact us via this email address, on NWSChat <https://nwschat.weather.gov/>,
or at the following:

National Weather Service Boston/Norton, MA
46 Commerce Way
Norton, MA 02766
508.622.3280
Website <http://www.weather.gov/boston> | Facebook
<http://www.facebook.com/NWSBoston> | Twitter
<http://www.twitter.com/NWSBoston>
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