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Mesoscale Discussion 28
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   Mesoscale Discussion 0028
   NWS Storm Prediction Center Norman OK
   1027 AM CST Sat Jan 07 2017

   Areas affected...Southern DE to southern New England

   Concerning...Heavy snow 

   Valid 071627Z - 072030Z

   SUMMARY...Heavy snow, with rates approaching one inch per hour, will
   be possible this afternoon from southern DE to southern New England.

   DISCUSSION...Surface low has developed off the NC coast in response
   to 100kt+ 500mb speed max over the southern Appalachians.  This
   mid-level feature will translate off the Middle Atlantic coast later
   this afternoon encouraging the aforementioned surface low to track
   well southeast of the MA coast, perhaps 150 mi at its closest. 
   Recent radar trends, and surface obs, suggest a broadening corridor
   of moderate to heavy snow has developed from southern DE, northeast
   into RI.  Favorably deep dentritic growth layer and sustained ascent
   within the maturing precip conveyor suggest snow rates will approach
   one inch per hour this afternoon.

   ..Darrow.. 01/07/2017


   LAT...LON   39207547 40557412 42247138 42517007 41616993 40227253
               38717461 39207547 

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