Mesoscale Discussion 0969
   NWS Storm Prediction Center Norman OK
   0255 PM CDT Mon Jun 14 2021

   Areas affected...Portions of eastern WV...northern VA...and western
   MD

   Concerning...Severe potential...Severe Thunderstorm Watch likely 

   Valid 141955Z - 142100Z

   Probability of Watch Issuance...95 percent

   SUMMARY...An increasing threat for scattered damaging winds and
   isolated severe hail will likely require Severe Thunderstorm Watch
   issuance soon.

   DISCUSSION...Ongoing convection across southwestern into central PA
   should continue to spread southeastward into parts of western MD,
   northern VA, and the eastern WV Panhandle through the remainder of
   the afternoon and into the early evening. Strong mid-level flow
   attendant to a shortwave trough is fostering 40-50 kt of deep-layer
   shear, and mixed mode of supercells and multicells is expected. Even
   though instability remains fairly limited across this region, it
   should still be sufficient to support surface-based storms.
   Scattered damaging winds and isolated marginally severe hail should
   be the main threats, and Severe Thunderstorm Watch issuance is
   likely soon.

   ..Gleason/Grams.. 06/14/2021

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

   ATTN...WFO...LWX...PBZ...RLX...

   LAT...LON   38637957 39287942 39677942 39697742 39167739 38597770
               38637957