Mesoscale Discussion 0430
   NWS Storm Prediction Center Norman OK
   0812 PM CDT Tue Apr 21 2020

   Areas affected...Eastern Texas Panhandle

   Concerning...Severe Thunderstorm Watch 129...

   Valid 220112Z - 220215Z

   The severe weather threat for Severe Thunderstorm Watch 129
   continues.

   SUMMARY...A couple of supercells will exit WW 129 to WW 130 over the
   next hour. A break in activity is expected before the possibility of
   additional strong to severe thunderstorm development overnight.

   DISCUSSION...Two robust supercells are ongoing in Hemphill county in
   the far eastern Texas Panhandle. These storms have produced several
   reports of large hail and gusty winds over the last hour. The severe
   weather threat is expected to continue across the eastern portions
   of WW 129 for 1 to 2 more hours before storms exit to the east.
   Intensity should be maintained as low-level moisture advection and
   shear are expected to strengthen with the onset of the nocturnal
   low-level jet. Sufficiently steep mid-level lapse rates of 7 to 7.5 
   C/km and MLCAPE of 500-1000 J/kg supports large hail and damaging
   outflow winds as the primary threats. Additional strong to severe
   storms may develop across portions of the Oklahoma and Texas
   Panhandles later tonight as upper level lift from the main shortwave
   trough shifts east from the southern Rockies.

   ..Lyons/Grams.. 04/22/2020

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

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

   LAT...LON   36270082 36379999 35360001 35350029 35380075 35900079
               36270082