Mesoscale Discussion 0556
   NWS Storm Prediction Center Norman OK
   0230 AM CDT Fri May 08 2020

   Areas affected...southeast Oklahoma and north Texas...east to the
   Arklatex

   Concerning...Severe Thunderstorm Watch 173...

   Valid 080730Z - 080930Z

   The severe weather threat for Severe Thunderstorm Watch 173
   continues.

   SUMMARY...Risk for locally damaging winds and marginal hail is
   expected to spread into areas downstream of existing WW 173.  This
   may require new WW issuance.

   DISCUSSION...Latest radar loop shows a large bow continuing to
   organize over south central and southeast Oklahoma, along the
   northern fringe of an axis of 500 to 1500 J/kg mixed-layer CAPE
   across central and north Texas.  RUC-based objective analyses
   indicate continued increases in capping into northeastern Texas --
   i.e. downstream of the bow -- but the well-organized nature of the
   convective band suggests that at least local/occasional gusts to
   severe levels will remain possible as storms continue moving
   east-southeastward at 50 kt.

   Given the potential that at least local wind/hail risk will spread
   out of the exist WW, a new watch may be required downstream, across
   parts of northeastern Texas and into the Arklatex region.

   ..Goss.. 05/08/2020

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

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

   LAT...LON   33769833 34249856 34549808 34689721 35129639 34699508
               33889371 32989351 32599450 32649565 33169720 33769833