Mesoscale Discussion 0510
   NWS Storm Prediction Center Norman OK
   0830 PM CDT Mon May 03 2021

   Areas affected...South-central Texas

   Concerning...Severe Thunderstorm Watch 135...

   Valid 040130Z - 040230Z

   The severe weather threat for Severe Thunderstorm Watch 135
   continues.

   SUMMARY...Large hail and damaging wind gusts will remain possible
   through the next few hours with a couple supercells ongoing within
   WW132.

   DISCUSSION...As of 0110z, KEWX showed a large sueprcell
   thunderstorm, producing numerous reports of severe hail, was located
   above the San Antonio metro. A second, left moving supercell at the
   Gillespie Blanco Kendall county intersection also has a history of
   producing large hail, with several 2-2.5 inch reports along I-10 in
   the last hour. These storms are ongoing in a very unstable and
   moderately sheared environment with 3000-4000 J/kg of MUCAPE and
   40-50 kts effective shear. Hi-res guidance and observation trends
   suggest that a significant hail threat will remain likely with these
   storms as they slowly move eastward in WW135. The greatest threat
   corridor appears to be the eastern San Antonio metro and eastward
   along interstate 10. Storms should slowly begin to weaken with the
   loss of diurnal heating, but severe weather will remain likely
   through 0300z.

   ..Lyons.. 05/04/2021

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

   ATTN...WFO...EWX...

   LAT...LON   29719763 29389767 29249785 29229808 29279839 29439873
               29739888 30289897 30429878 30449829 30209793 29939772
               29719763