Mesoscale Discussion 1257
   NWS Storm Prediction Center Norman OK
   0233 PM CDT Sun Jul 11 2021

   Areas affected...Portions of central/southeast NM...West TX

   Concerning...Severe Thunderstorm Watch 371...

   Valid 111933Z - 112100Z

   The severe weather threat for Severe Thunderstorm Watch 371
   continues.

   SUMMARY...The risk for large hail and damaging winds continues
   across Severe Thunderstorm Watch 371, and conditions are being
   monitored for an additional watch that will likely be needed across
   central/southwest portions of NM by 2030z.

   DISCUSSION...Strong/severe storms were in progress as of 1925z in
   the vicinity of the TX/NM border west/southwest of Lubbock.  These
   storms were along a slow-moving front/outflow boundary, where strong
   MLCAPE and 25-30 kts of northerly shear will support a continued
   severe risk with both supercell and multicell/cluster storm
   structures.  Hail up to the size of half dollars and measured gusts
   to 65 mph have recently been reported, and severe hail and damaging
   winds will remain possible this afternoon.  Additional thunderstorm
   development is likely over the watch area during next few hours in
   the largely uncapped environment, aided by frontal/outflow boundary
   convergence and a moist upslope flow.

   Farther west, Isolated thunderstorms have developed over the higher
   terrain over north-central and south-central/southwest NM, where
   seasonably high moisture has contributed to moderate buoyancy. 
   Northerly mid-level flow will also favor organized storms this
   afternoon and evening with severe hail and wind likely with the
   strongest storms.  Convective trends are being monitored for the
   possibility of an additional Severe Thunderstorm Watch prior to
   2030z.

   ..Bunting/Guyer.. 07/11/2021

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

   ATTN...WFO...LUB...MAF...ABQ...EPZ...

   LAT...LON   35550766 36320634 35980534 34610516 34190365 33640189
               32890182 31680185 31830302 31900433 31780587 31830667
               32400898 35550766