Mesoscale Discussion 0437
   NWS Storm Prediction Center Norman OK
   1129 AM CDT Wed Apr 22 2020

   Areas affected...central through eastern Oklahoma into western
   Arkansas

   Concerning...Severe Thunderstorm Watch 132...

   Valid 221629Z - 221800Z

   The severe weather threat for Severe Thunderstorm Watch 132
   continues.

   SUMMARY...Threat for primarily isolated large hail will persist next
   couple hours, from the eastern half of Oklahoma into western
   Arkansas. A few strong to damaging wind gusts are also possible.

   DISCUSSION...Late this morning numerous storms continue developing
   from eastern OK to western AR within broad zone of isentropic ascent
   associated with an eastward migrating 50 Kt southerly low-level jet.
   Though a few discrete storms persist, tendency has been for storms
   to consolidate into clusters which may reduce the overall coverage
   of large hail events. Outflow boundary is advancing southeast
   through east central OK, contributing to some quasi-linear
   evolution. Given vertical wind profiles with 50+ kt effective bulk
   shear, these storm might eventually organize into bowing segments
   with embedded meso-vortices and become capable of producing strong
   to damaging wind gusts as they continue east.

   Farther west across west central through central OK, additional
   storms will likely develop along and north of baroclinic zone as
   this boundary begins to pivot southeast in association with the
   progressive shortwave trough. These storms will also be capable of
   producing large hail and damaging wind into the afternoon.

   ..Dial.. 04/22/2020

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

   ATTN...WFO...LZK...SHV...TSA...OUN...

   LAT...LON   34199630 34939653 35699580 35709447 35049420 34219470
               34199630