Mesoscale Discussion 0648
   NWS Storm Prediction Center Norman OK
   0625 PM CDT Wed May 20 2020

   Areas affected...Central/Northern High Plains

   Concerning...Severe Thunderstorm Watch 195...

   Valid 202325Z - 210100Z

   The severe weather threat for Severe Thunderstorm Watch 195
   continues.

   SUMMARY...Severe threat is shifting into the eastern parts of ww195.

   DISCUSSION...Deep convection that initiated off the Laramie Range a
   few hours ago has since progressed across the High Plains of eastern
   WY. This activity has evolved into a squall line that is propagating
   through an instability axis near the WY/SD/NE border. While LLJ
   should encourage continued eastward movement, the corridor of
   appreciable buoyancy remaining is roughly 50-100 mi wide. For these
   reasons, severe threat appears to be peaking and will likely
   decrease between 103-102W longitude.

   ..Darrow.. 05/20/2020

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

   ATTN...WFO...UNR...GLD...BOU...CYS...BYZ...

   LAT...LON   40400508 45050584 45050317 40420261 40400508