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Mesoscale Discussion 130
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   Mesoscale Discussion 0130
   NWS Storm Prediction Center Norman OK
   0939 PM CST Thu Feb 02 2023

   Areas affected...Northern into central PA...central NY...VT...and
   western NH

   Concerning...Snow Squall 

   Valid 030339Z - 030745Z

   SUMMARY...Snow squalls could continue spreading east-southeastward
   across parts of the Northeast during the next few hours. Rapid
   visibility reductions in bursts of heavy snow are possible.

   DISCUSSION...Latest mosaic radar imagery shows a well-organized snow
   squall moving east-southeastward at around 30-40 kt across parts of
   central NY. This band is generally focused along the leading edge of
   a southeastward-advancing arctic cold front, which is expected to
   continue overspreading parts of the Northeast during the next few
   hours. Regional VWP data depicts 50 kt of west-southwesterly flow in
   the lowest 3 km, which combined with strong/focused forcing for
   ascent and pockets of conditionally unstable boundary-layer
   conditions preceding the snow squall, should support its maintenance
   with eastward extent. The primary limiting factor continues to be
   somewhat dry low-level conditions, though it appears that the
   aforementioned factors are generally compensating for this.
   Therefore, the potential for rapid visibility reductions in bursts
   of heavy snow should continue spreading east-southeastward across
   the Northeast during the next few hours before a gradual decrease in

   ..Weinman.. 02/03/2023

   ...Please see for graphic product...


   LAT...LON   40907812 41077889 41447959 41837965 42877646 43357540
               44127417 45067300 45127224 45187108 44417100 43857138
               42817255 41807486 41177670 40907812 

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