Mesoscale Discussion 1122
   NWS Storm Prediction Center Norman OK
   0525 PM CDT Mon Jul 06 2020

   Areas affected...Southeast Pennsylvania...Maryland...and
   Delaware...and New Jersey.

   Concerning...Severe Thunderstorm Watch 333...

   Valid 062225Z - 070030Z

   The severe weather threat for Severe Thunderstorm Watch 333
   continues.

   SUMMARY...The threat for severe hail and damaging winds will
   continue across portions of WW 333 for the next 1-2 hours,
   especially across eastern Maryland and Delaware.

   DISCUSSION...Radar trends over the past hour have shown convective
   development along a weak trough/confluence axis draped across
   eastern MD. The environment these storms are developing in has not
   yet been contaminated by prior convection or the southward surging
   outflow. Given sufficient 30 knots of boundary-normal effective bulk
   shear and 2000-2500 J/kg MLCAPE, organized convection will be
   possible and will pose a risk for severe hail and wind before cells
   merge with the approaching outflow boundary.

   To the north, the southward surging outflow boundary continues to
   move into southern NJ, northeast MD, and northern DE. This boundary
   should continue to force low-level parcels to their LFCs over the
   next 1-2 hours before diurnal cooling begins to gradually stabilize
   the low-level boundary layer. Although storm motions with respect to
   this boundary will continue to favor clusters of storms, strong
   initial updraft pulses will pose the threat for small to perhaps
   severe hail, while a convectively reinforced cold pool will continue
   the damaging wind potential.

   ..Moore.. 07/06/2020

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

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

   LAT...LON   38447814 38707771 39247729 39877678 40277620 40267547
               39887469 39277455 38367500 37607569 37827731 38447814