Mesoscale Discussion 0845
   NWS Storm Prediction Center Norman OK
   0347 PM CDT Thu Jun 03 2021

   Areas affected...the Mid Atlantic region

   Concerning...Severe Thunderstorm Watch 234...

   Valid 032047Z - 032215Z

   The severe weather threat for Severe Thunderstorm Watch 234
   continues.

   SUMMARY...Scattered strong/isolated severe storms continue from
   southeastern Pennsylvania southwestward into central Virginia, where
   locally damaging wind gusts remain the primary risk.

   DISCUSSION...Latest radar loop shows a broken band of storms that
   continues to evolve along and east of the higher terrain of
   Pennsylvania/Maryland/Virginia.  Diurnal heating combined with the
   relatively moist (generally mid to upper 60s dewpoints)
   boundary-layer airmass across the area has pushed mixed-layer CAPE
   values into the 1000 to 1500 J/kg range.  Coupled with
   increasing/weakly veering flow with height which is aiding updraft
   organization, isolated severe storms have evolved, a few exhibiting
   supercell characteristics.  While marginally severe hail is
   possible, greater risk is for locally damaging wind gusts --
   particularly as storms grow upscale/congeal.  Meanwhile, an
   isolated/brief tornado cannot be ruled out over the next 1-2 hours.

   ..Goss.. 06/03/2021

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

   ATTN...WFO...PHI...AKQ...CTP...LWX...RNK...

   LAT...LON   37477908 39477769 40787530 40667449 38127599 37447826
               37477908