Mesoscale Discussion 0568
   NWS Storm Prediction Center Norman OK
   1036 PM CDT Sun Apr 28 2024

   Areas affected...Southeast TX...Western LA

   Concerning...Tornado Watch 160...

   Valid 290336Z - 290530Z

   The severe weather threat for Tornado Watch 160 continues.

   SUMMARY...Strong/severe thunderstorms will persist across portions
   of southeast TX into western LA.

   DISCUSSION...Sustained low-level warm advection appears largely
   responsible for ongoing corridor of strong/severe convection that
   extends from Grimes County TX-De Soto Parish LA. Western flank of
   this corridor is an extension of a larger MCS that has advanced into
   southern AR, arcing southwest into southeast TX. TX portion of this
   MCS will likely remain quasi stationary due to LLJ that has yet to
   shift downstream. While environmental shear supports sustained,
   rotating updrafts, the primary storm mode will remain more complex
   with multiple storm mergers and clusters than supercells. Very heavy
   rain will be noted along this corridor, though a brief tornado
   and/or locally damaging winds remain possible.

   ..Darrow.. 04/29/2024

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

   ATTN...WFO...LCH...SHV...HGX...

   LAT...LON   30779596 32049323 31359299 30209569 30779596