Mesoscale Discussion 1062
   NWS Storm Prediction Center Norman OK
   1014 PM CDT Tue May 28 2024

   Areas affected...Deep South Texas

   Concerning...Severe Thunderstorm Watch 348...

   Valid 290314Z - 290515Z

   The severe weather threat for Severe Thunderstorm Watch 348
   continues.

   SUMMARY...Severe threat will spread across central into southern
   portions of ww0348 over the next several hours.

   DISCUSSION...Weak short-wave trough is progressing across the
   southern High Plains and this feature is now turning southeast
   within broader northwesterly flow. Strong surface heating and
   orographic influences allowed multiple thunderstorm clusters to
   evolve across southwest TX/northeast Mexico late this
   afternoon/early evening. This activity has grown upscale and is now
   a mature MCS that is propagating toward deep south TX. Leading edge
   of this activity is surging through Webb/Zapata Counties along the
   instability axis characterized by MLCAPE around 4000 J/kg. While 00z
   soundings from CRP/BRO where both capped this evening, it appears
   adequate northwesterly mid-level flow exists at this latitude for
   this complex to advance a considerable more distance before
   weakening. Damaging winds and hail remain likely with this MCS.

   ..Darrow.. 05/29/2024

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

   ATTN...WFO...CRP...EWX...BRO...

   LAT...LON   26089917 29100027 29119878 26089772 26089917