Storm Prediction Center Mesoscale Discussion 1962

   Mesoscale Discussion 1962
   NWS Storm Prediction Center Norman OK
   1050 PM CDT Wed Aug 12 2026

   Areas affected...central Nebraska

   Concerning...Severe Thunderstorm Watch 579...

   Valid 130350Z - 130545Z

   The severe weather threat for Severe Thunderstorm Watch 579
   continues.

   SUMMARY...Severe potential continues within WW579.

   DISCUSSION...A slow moving cluster of thunderstorms continues to
   evolve eastward along north/south combining outflow boundaries.
   Occasional gusts of 50-60 mph have been reported. Ahead of the
   ongoing convection, a precipitation shield has developed. Nocturnal
   cooling and increasing MLCIN are noted ahead of the line across
   central Nebraska. Nonetheless, 00z observed sounding from OAX would
   suggest that appreciable MUCAPE is available downstream. VAD
   profiles across Oklahoma and Kansas are starting to sample the
   increasing 30-35 kt southerly low-level jet (LLJ). This is forecast
   to further increase and nudge into portions of southern Nebraska
   over the next couple of hours. Hi-res and ensemble guidance continue
   to suggest that some increase in intensity of convection will be
   possible as this occurs, with potential for damaging wind to
   continue across central Nebraska after 06z.

   ..Thornton.. 08/13/2026

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

   ATTN...WFO...GID...LBF...

   LAT...LON   42730113 42720166 42430208 41690206 41230187 41070139
               41020026 41239964 41949880 42529875 42809940 42809990
               42730113 

   MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
   MOST PROBABLE PEAK WIND GUST...65-80 MPH
   MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN