[Weather] [2019.02.10 AM] Snow / Sleet / Freezing Rain ... Significant Impacts for the Tuesday PM Commute

[BOX Operations - NOAA Service Account]

Good morning,

Initial snows transitioning to a wintry mix of mostly sleet with some
freezing rain across the interior, while transitioning to rain along the
coast, is forecast for midday Tuesday through early Wednesday morning.

Please see the attached slides conveying the anticipated threats while
details concerning impacts and uncertainty are provided below. Please note,
the timing of precip type graphic is an animation.

*What / Where / When ... *

   - Onset snow transitioning to a wintry mix of mostly sleet with some
   freezing rain across interior Southern New England, transitioning to rain
   along the coast.
   - Beginning late morning to midday Tuesday, continuing through early
   Wednesday morning.
   - Biggest concern is impacts for the Tuesday afternoon into evening
   commute, perhaps lingering into the Wednesday morning commute. Travel
   headaches with untreated surfaces becoming slick ... reductions in
   visibility as a result of snow.

*Uncertainty ... *

   - A first guess storm total snow and storm total ice graphic are
   attached, as well as a rough timing of winter weather outcomes.
   - However, the forecast beyond 48 hours, there is still some uncertainty
   as to specific outcomes and impacts for any particular location, especially
   with regards to transition timing of precipitation-types.
   - While widespread advisory-level impacts are forecast for most of
   Southern New England presently, with the threat of warning-level impacts
   for N/W areas of MA, the latest suite of forecast guidance has trended
   warmer.
      - If this warm trend continues, then impacts could be potentially
      less for particular areas.
      - Thus no headlines were issued with this latest forecast given
      uncertainty and lower forecast confidence.

We will continue to issue briefings leading up to the event with the latest
forecast information. Should you have any questions, comments and/or
concerns, please don't hesitate to reach out to us.

Respectfully,

Benjamin Sipprell
Meteorologist
NWS Boston / Norton

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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