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Mesoscale Discussion 60
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   Mesoscale Discussion 0060
   NWS Storm Prediction Center Norman OK
   0521 PM CST Wed Feb 07 2018

   Areas affected...New England

   Concerning...Winter mixed precipitation 

   Valid 072321Z - 080315Z

   SUMMARY...Heavy snow will move from New Hampshire across southern
   Maine this evening. Freezing rain will persist for 2-3 hours across
   Massachusetts into southern New Hampshire.

   DISCUSSION...A progressive shortwave trough will continue to quickly
   move across the Northeast this evening, with a surface low moving
   from southern New England into NB/NS. Strong warm/moist advection is
   occurring ahead of this wave, resulting in a extensive shield of
   precipitation. Most of the area is cold enough for snow, but
   southern areas from MA into coastal ME are experiencing freezing
   rain as a result of a warm nose aloft.

   Recent observations indicate 1"/hr snow rates are common from NH
   into ME, with hourly freezing rain rates of 0.05-0.10" over MA and
   southern NH. Rapid drying aloft will result in dissipating
   precipitation from west to east over the next few hours, while
   strong lift and the bulk of the heavy snow moves across ME and ends
   around 04Z.

   ..Jewell.. 02/07/2018

   ...Please see for graphic product...


   LAT...LON   43257046 41777277 41977316 42727294 44247144 45297003
               45826778 45726678 45326634 44856642 44486736 43257046 

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