Mesoscale Discussion 0756
   NWS Storm Prediction Center Norman OK
   0648 PM CDT Wed May 26 2021

   Areas affected...Parts of the Nebraska Panhandle

   Concerning...Severe Thunderstorm Watch 207...

   Valid 262348Z - 270115Z

   The severe weather threat for Severe Thunderstorm Watch 207
   continues.

   SUMMARY...Strong to severe thunderstorm development remains possible
   northwest through west of Alliance, NE through around 7-8 PM MDT,
   before beginning to diminish.  A new severe weather watch probably
   will not be needed, but trends will continue to be monitored.

   DISCUSSION...Moderate to strong boundary-layer instability remains
   largely confined to a narrow corridor of stronger daytime heating,
   within surface troughing to the lee of the Laramie Mountains into
   western portions of the Nebraska Panhandle.  As a significant short
   wave trough continues to progress across and east of the northern
   Rockies into this evening, this environment could still support
   additional strong/severe storm development, including a supercell or
   two, another couple of hours.  However, toward 01-03Z, the southward
   progression of a surface cold front, coupled with diurnal
   boundary-layer cooling probably will result in the onset of
   diminishing convective trends.

   ..Kerr.. 05/26/2021

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

   ATTN...WFO...LBF...UNR...CYS...

   LAT...LON   42990299 42550221 42040210 41650287 41590398 41650458
               42310407 43000404 42990299