Mesoscale Discussion 1369
   NWS Storm Prediction Center Norman OK
   0643 PM CDT Fri Jul 31 2020

   Areas affected...Eastern Tennessee...Western North
   Carolina...Southwestern Virginia

   Concerning...Severe potential...Watch unlikely 

   Valid 312343Z - 010215Z

   Probability of Watch Issuance...20 percent

   SUMMARY...An isolated wind damage threat will be possible over the
   next couple of hours as storms move from far eastern Tennessee into
   western North Carolina and southwestern Virginia. The threat should
   be too localized, and the longevity of the severe threat too
   uncertain for weather watch issuance.

   DISCUSSION...The latest volumetric radar imagery shows a line of
   strong to severe thunderstorms located in far eastern Tennessee to
   the west of Johnson City and Kingsport. The line is located in a
   moist airmass with surface dewpoints in the southern Appalachians
   mostly in the upper 60s and lower 70s F. In response, moderate
   instability is analyzed by the RAP from far eastern Tennessee into
   western North Carolina. Although the line of storms will be moving
   into slightly less instability over the next hour, it should
   encounter stronger instability in northwestern North Carolina and
   southwestern Virginia. If the line can remain intact and obtain
   access to the stronger instability further to the east, then the
   wind damage threat could persist for a couple more hours.

   ..Broyles/Hart.. 07/31/2020

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

   ATTN...WFO...RAH...RNK...GSP...MRX...

   LAT...LON   35757974 35538238 35648285 35978308 36398301 36798270
               36978159 36877971 35757974