Mesoscale Discussion 1658
   NWS Storm Prediction Center Norman OK
   0613 PM CDT Mon Aug 31 2020

   Areas affected...Northwest Texas to Southeast Kansas

   Concerning...Severe Thunderstorm Watch 480...

   Valid 312313Z - 010045Z

   The severe weather threat for Severe Thunderstorm Watch 480
   continues.

   SUMMARY...Isolated large hail and damaging wind threat continue from
   northwest Texas into southeast Kansas.

   DISCUSSION...Latest water-vapor and radar imagery suggest a weak
   mid-level short-wave trough is progressing across the southern High
   Plains. Considerable mid-high cloudiness extend immediately ahead of
   this feature with substantial deep convection now developing along a
   corridor from west of ABI-OKC-BVO. Additionally, a synoptic front is
   settling into this region providing the focus for continued upscale
   growth. Observed wind profiles ahead of the short wave appear
   favorable for sustained, organized updrafts and a few supercells
   have been observed, especially early in convective evolution.
   However, numerous updrafts continue to develop along/ahead of the
   front, and should continue to do so as LLJ strengthens some after
   sunset. An expanding corridor of storms should ultimately evolve
   into one or more MCSs over the next 2-4 hours. Hail remains likely
   in the formative stages of these updrafts; otherwise, damaging winds
   remain possible.

   ..Darrow.. 08/31/2020

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

   ATTN...WFO...SGF...TSA...ICT...OUN...LUB...

   LAT...LON   33740003 37439609 37429428 33729827 33740003