Storm Prediction Center Mesoscale Discussion 1118

   Mesoscale Discussion 1118
   NWS Storm Prediction Center Norman OK
   0803 AM CDT Sat Jun 13 2026

   Areas affected...Southeast Nebraska...Southwest Iowa...Far Northwest
   Missouri

   Concerning...Severe Thunderstorm Watch 325...

   Valid 131303Z - 131500Z

   The severe weather threat for Severe Thunderstorm Watch 325
   continues.

   SUMMARY...A threat for isolated large hail and severe wind gusts
   will likely continue over the next couple of hours from southeast
   Nebraska into southwest Iowa and far northwest Missouri. As the
   storms move toward the edge of Watch 325, additional watch issuance
   will likely need to be considered.

   DISCUSSION...The latest high-resolution radar imagery shows a strong
   line segment ongoing to the west of Omaha. The line is located at
   the northern end of a pocket of moderate instability, analyzed by
   the RAP from northeastern Kansas into southeastern Nebraska. MLCAPE
   within this corridor is estimated to be in the 2000 to 2500 J/kg
   range. In addition, the RAP shows a plume of steep mid-level lapse
   rates (in the 7.5 to 8.5 C/km range) extending eastward from
   northwest Kansas into southeast Nebraska. This environment will
   continue to support an isolated large hail threat this morning. In
   addition, a potential will exist for isolated severe gusts, and this
   threat could increase if the line can become more organized. The
   threat may tend to move more southeastward into far northwest
   Missouri, favoring the eastern edge of the stronger instability.

   ..Broyles.. 06/13/2026

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

   ATTN...WFO...DMX...EAX...OAX...TOP...GID...

   LAT...LON   39719507 39909595 40139664 40529748 40929764 41199757
               41619716 41799659 41789623 41339522 40869438 40539401
               40039408 39739451 39719507 

   MOST PROBABLE PEAK WIND GUST...55-70 MPH
   MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN