[Weather] [2020-03-23 PM] NWS Boston EM Briefing for Snow Event Tonight

[BOX Operations - NOAA Service Account]

Good afternoon,

Here is the latest on the snow event impacting Connecticut, Rhode Island
and Massachusetts.

The key takeaway is snow amounts have been increased from previous forecast
across northern CT into northwest RI and northeast MA.

Please see the attached graphics which include:

   - NWS Winter Storm Warnings & Winter Weather Advisories
   - NWS Official Snowfall Forecast

*NEW: *

   - Winter Weather Advisory for all of northern CT including Hartford,
   Windham and Tolland counties

*What's Changed*:

   - Increased snow amounts across northern CT from Hartford to the RI
   border to 2-4 inches of snow before mixing with sleet and then changing
   over the rain 5 pm to 8 pm
   - Increased snow amounts across the northern portions of Middlesex and
   Essex counties where the Winter Weather Advisory has been posted. 2-4"
   expected here with highest totals likely along and near the NH border

*What/Where/When: *

   - Western and central MA snow heavy at times continue into this evening
   then tapering off between 11 pm and 2 am.  Snow will accumulate 4-8 inches
   across the high elevations with 2-4 inches in the valleys.* Locations
   that receive over 4 inches there is an increased risk of tree damage and
   isolated power outages given the heavy wet snow.*
   - Snow across RI and eastern MA (along and northwest of Boston to
   Providence) changes over to sleet and then rain between 5 pm and 8 pm with
   snow accumulations ranging from a coating up to 2 inches north and west of
   Boston to Providence.  Snow accumulates mainly on the colder non paved
   surfaces with main roads remaining just wet
   - Little if any snow southeast of Boston to Providence line

*Uncertainty:*

   - The exact timing of the changeover and resulting duration of snow is
   somewhat uncertain.  If the changeover is delayed by an hour or two snow
   totals will be slightly higher.  Conversely if the changeover occurs
   quicker than forecast snow totals will be lower.

For more details, check out our winter page:
https://www.weather.gov/box/winter

This will be the last email briefing unless conditions change.

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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