Mesoscale Discussion 1859
   NWS Storm Prediction Center Norman OK
   1135 PM CDT Sat Aug 05 2023

   Areas affected...Southern High Plains

   Concerning...Severe Thunderstorm Watch 591...

   Valid 060435Z - 060630Z

   The severe weather threat for Severe Thunderstorm Watch 591
   continues.

   SUMMARY...Damaging wind threat appears to be increasing across the
   eastern TX Panhandle into western OK.

   DISCUSSION...MCS is slowly maturing over the eastern TX Panhandle
   late this evening. This cluster of storms has evolved along the
   southern fringe of stronger mid-level flow associated with a
   transitory short-wave trough over the central Plains. Early-day
   convection has contributed to an outflow boundary that is currently
   draped from south-central OK into the TX Panhandle. Southerly 1km
   flow has increased to near 35kt ahead of this activity and there is
   increasing concern the aforementioned MCS may propagate along/just
   north of the boundary with an attendant threat for damaging winds.

   ..Darrow.. 08/06/2023

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

   ATTN...WFO...OUN...AMA...

   LAT...LON   36490064 36189821 35529762 34949798 34889914 35570126
               36490064