[Weather] [2019.03.01 AM] Potential for Two Winter Storms Tonight thru Monday

[BOX Operations - NOAA Service Account]

Good Morning,

An active pattern is still anticipated this weekend and early next week
with the potential for 2 winter storms impacting Southern New England. The
first storm will start late tonight and last into Saturday. This will bring
the potential for several inches snow accumulation. The second and stronger
storm is expected late Sunday into Monday, but there remains considerable
uncertainty with the storm track, which will in turn affect the types of
precipitation. Details below.

*Tonight into Saturday...*

*What has changed:*

   - A Winter Weather Advisory has been issued for parts of Southeast
   Massachusetts.  This includes Suffolk, Norfolk, Northern Bristol, and
   Interior/Eastern Plymouth Counties.

*What/Where/When:*

   - Potential snowfall of 2 to 6 inches.
      - Heaviest snowfall expected across interior RI/Southeast MA
      - Snow develops near the south coast around 9 PM tonight and reaches
      northern MA toward daybreak Saturday
      - A  brief period of heavy snow with 1-2 inch/hr snowfall rates is
      possible Sat morning across eastern New England
      - Hazardous travel conditions with snow covered roads and poor
      visibility late tonight and Saturday morning
      - Snowfall will be wet and heavy so risk for power outages will
      increase if amounts reach 6 inches
      - Some mixing with rain or sleet possible coastal plain and
      Cape/Islands Saturday
      - Snow gradually tapers off west to east during Saturday midday and
      afternoon

*Uncertainty:*

   - Axis of heaviest snowfall can still change and it is possible max
   snowfall amounts could exceed 6 inches in some locations.
   - If storm track trends further north, heavier snowfall will shift
   further in the interior with more rain near the coast. A further south
   track would result in more of a glancing blow.
   - Slight cooling in the atmosphere could result in more significant snow
   accumulation for the Cape/Islands.


*Late Sunday into Monday...*

*What has changed:*

   - Forecast information has trended the forecast storm paths somewhat
   closer together, but still with lingering and significant differences.

*What:*

   - Significant snow accumulation
   - Impacts to the Monday morning commute

*Where:*

   - Greatest risk for significant snow will be across the interior, north
   and west of the Boston to Providence corridor, but significant snow can't
   be ruled out yet for Boston to Providence

*When:*

   - Snow develops Sunday evening from west to east, possibly heavy at
   times after midnight
   - Snow may mix with sleet and change to rain in the coastal plain later
   Sunday night
   - Precipitation gradually tapers off during Monday

*Uncertainty:*

   - There is still considerable uncertainty with the storm track which
   will determine where rain-snow line sets up and where axis of heaviest snow
   occurs
   - It is still too early to give specific snowfall amounts
   - We will know more each day but probably will not have higher
   confidence in snowfall amounts until Saturday


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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