Mesoscale Discussion 0063
   NWS Storm Prediction Center Norman OK
   0324 AM CST Sun Feb 07 2021

   Areas affected...Virginia...Southeast West Virginia

   Concerning...Heavy snow 

   Valid 070924Z - 071530Z

   SUMMARY...Moderate to heavy snow is expected to develop from
   southeast West Virginia into western, central and northern Virginia
   early this morning. Snowfall rates of 1 inch per hour will be
   possible.

   DISCUSSION...The latest mosaic radar imagery shows a large area of
   precipitation from the central Appalachians eastward to the
   Mid-Atlantic. At this time, temperatures are below freezing at the
   higher elevations across the central Appalachian Mountains, where
   heavy snow was reported last hour in southeastern West Virginia.
   This band of snow is forming ahead of a shortwave trough evident on
   water vapor imagery. As the shortwave trough moves northeastward
   across the central Appalachians early this morning, isentropic
   ascent will increase markedly across much of western and central
   Virginia. In response, moderate to heavy snow is forecast to develop
   with the band across western and central Virginia. The band will
   develop northeastward with time, reaching northern Virginia toward
   daybreak. Snowfall rates are expected to peak near 1 inch per hour
   in the heaviest part of the band. Snow accumulation rates will not
   be maximized in areas where surface temperatures remain slightly
   above freezing. The potential for this limitation appears greatest
   across parts of east-central and northeast Virginia.

   ..Broyles.. 02/07/2021

   ...Please see www.spc.noaa.gov for graphic product...

   ATTN...WFO...AKQ...LWX...RNK...RLX...

   LAT...LON   36758145 37198147 37738115 38238006 38697904 38977836
               39017761 38717711 38307704 37847737 37217850 36627966
               36568085 36758145