Storm Prediction Center Mesoscale Discussion 1767

   Mesoscale Discussion 1767
   NWS Storm Prediction Center Norman OK
   0633 PM CDT Wed Jul 23 2025

   Areas affected...Central Plains

   Concerning...Severe Thunderstorm Watch 539...

   Valid 232333Z - 240130Z

   The severe weather threat for Severe Thunderstorm Watch 539
   continues.

   SUMMARY...Strong-severe thunderstorms will advance steadily east
   this evening.

   DISCUSSION...Slow-moving upper disturbance that drifted across
   northeast CO appears to be aiding a considerable amount of
   convection, along/behind a surface front that is draped across the
   central Plains early this evening. Over the last few hours,
   thunderstorms have gradually increased in areal coverage along/near
   the frontal zone, extending from northwest KS into northern NE. An
   elongated, frontal MCS appears to be evolving, and this activity
   should propagate downstream as the synoptic boundary sags southeast
   this evening. Some increase in the LLJ will likely assist this
   propagation. Hail is the primary risk, along with some threat for
   wind.

   ..Darrow.. 07/23/2025

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

   ATTN...WFO...FSD...OAX...GID...LBF...GLD...

   LAT...LON   39470207 42539976 42529662 39469907 39470207 

   MOST PROBABLE PEAK WIND GUST...55-70 MPH
   MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN