[Weather] [2018.12.16 PM] NWS Briefing #4

[BOX Operations - NOAA Service Account]

Good afternoon everyone,

Winter Weather Headlines remain posted for western-central Massachusetts
this evening and overnight.  Here are the details ...

*What / Where / When ...*

   - *What* - rain changing to sleet/ice pellets then all snow


   - *Where* - western & central Massachusetts (east slopes of the
   Berkshires into the Worcester Hills)


   - *When* - this evening and overnight


   - *Headlines* - Winter Weather Advisories remain posted for
   western-central MA


   - *Impacts* - slippery snow covered roads especially at elevations above
   1000 ft. Heaviest precipitation occurs from approximately 6 pm this evening
   to 2 am then diminishing thereafter with just light snow expected during
   the Monday morning rush hour. No impacts other than wet roads expected from
   Boston to Providence to Hartford.


   - *Uncertainty* - there is some uncertainty how quickly rain will change
   over to sleet then snow this evening along with how quickly will snow begin
   to accumulate on paved surfaces. Given the lack of cold air currently
   across the region combined with a slow transition expected from rain to
   sleet to snow our snowfall accumulations are only a coating to 2 inches
   with highest amounts above 1000 ft. However if the changeover to snow
   occurs more rapidly then more snow is possible (worst case scenario - 90
   percentile forecast) with 2 to 5 inches a low probability from the east
   slopes of the Berkshires into the Worcester Hills.  Therefore stay tuned to
   later forecasts and discussions to see how this weather event evolves.

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>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.massupt.org/pipermail/weather/attachments/20181216/1ba6b8f1/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Headlines.png
Type: image/png
Size: 203262 bytes
Desc: not available
URL: <http://lists.massupt.org/pipermail/weather/attachments/20181216/1ba6b8f1/attachment-0004.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: StormTotalSnowISC_SFC.png
Type: image/png
Size: 115888 bytes
Desc: not available
URL: <http://lists.massupt.org/pipermail/weather/attachments/20181216/1ba6b8f1/attachment-0005.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: SnowAmt90PrcntlISC_SFC.png
Type: image/png
Size: 119506 bytes
Desc: not available
URL: <http://lists.massupt.org/pipermail/weather/attachments/20181216/1ba6b8f1/attachment-0006.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: StormTotalIceISC_SFC.png
Type: image/png
Size: 111190 bytes
Desc: not available
URL: <http://lists.massupt.org/pipermail/weather/attachments/20181216/1ba6b8f1/attachment-0007.png>