US Mesoscale Discussions

Storm Prediction Center Mesoscale Discussion 384



   Mesoscale Discussion 0384
   NWS Storm Prediction Center Norman OK
   0249 PM CDT Mon Apr 08 2024

   Areas affected...eastern portions of central Texas into adjacent
   western Louisiana

   Concerning...Tornado Watch 90...

   Valid 081949Z - 082145Z

   The severe weather threat for Tornado Watch 90 continues.

   SUMMARY...The risk for severe hail, and perhaps a couple of
   tornadoes, may continue to increase with a couple of evolving
   supercells, before thunderstorms possibly begin consolidating into
   an organizing cluster near and north of the College Station and
   Huntsville into Lufkin vicinities toward 5-6 PM CDT.

   DISCUSSION...Thunderstorms have increased in coverage and intensity
   within a narrow corridor, which likely coincides with the
   northern/leading edge of stronger mid-level inhibition, beneath
   building ridging within the subtropical branch of westerlies. 
   Models suggest that one on two speed maxima within this regime will
   contribute to strengthening upper divergence along this corridor
   during the next few hours, supporting potential for considerable
   further upscale convective growth.

   A couple of supercells which have recently evolved to the southeast
   of the College Station and Huntsville vicinities may continue to
   intensify in the near term, aided by increasing inflow of moist
   boundary-layer air characterized moderately large CAPE, in the
   presence of strengthening shear.  Gradually, though, it appears that
   forcing associated with lower/mid-tropospheric warm advection may
   tend to become focused to the north of College Station and
   Huntsville into Lufkin vicinity, where strongest storms may evolve
   into an increasingly organized cluster by 22-23Z.

   ..Kerr.. 04/08/2024

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

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

   LAT...LON   30879632 31769595 32149397 31559349 30849365 30529494
               30449572 30369612 30879632 



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