Mesoscale Discussion 1058
   NWS Storm Prediction Center Norman OK
   0154 PM CDT Tue Jun 30 2020

   Areas affected...northern Georgia through western South Carolina

   Concerning...Severe potential...Watch unlikely 

   Valid 301854Z - 302100Z

   Probability of Watch Issuance...5 percent

   SUMMARY...Thunderstorms will continue to pose a risk for a few
   strong to damaging wind gusts as they move through northern Georgia
   and into western South Carolina this afternoon. A WW is not
   anticipated at this time.

   DISCUSSION...As of mid afternoon a squall line extends across
   southeast TN into northwest GA moving east southeast at 25 to 30 kt.
   Mid-level lapse rates are weak, but the downstream boundary layer
   continues to destabilize as temperatures warm to the low 90s F
   supporting 2000-2500 J/kg MUCAPE. Storms are embedded within modest
   15-20 kt west northwesterly deep layer flow. Despite weak forcing
   aloft in the presence of a shortwave ridge, storm-scale forcing with
   convergence along the cold pool should promote a forward propagating
   MCS through the destabilizing and weakly capped boundary layer next
   several hours. Steepening low-level lapse rates will support a few
   strong to locally damaging gusts.

   ..Dial/Hart.. 06/30/2020

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

   ATTN...WFO...CAE...GSP...MRX...FFC...

   LAT...LON   34548469 35078415 34848270 34438227 33918253 33668332
               34008481 34548469