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Storm Prediction Center Mesoscale Discussion 2022

Published Date and Time: 2026-08-18 00:24:00



Mesoscale Discussion 2022
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   Mesoscale Discussion 2022
   NWS Storm Prediction Center Norman OK
   1121 PM CDT Mon Aug 17 2026

   Areas affected...portions of central and eastern Nebraska

   Concerning...Severe Thunderstorm Watch 592...594...

   Valid 180421Z - 180545Z

   The severe weather threat for Severe Thunderstorm Watch 592, 594
   continues.

   SUMMARY...A brief bout of severe hail or a gust may still occur with
   one of the stronger embedded cells within the broader thunderstorm
   cluster. However, the overall severe threat should diminish with
   time tonight.

   DISCUSSION...A loosely organized MCS continues to propagate eastward
   as cold pools with surrounding supercells and multicells merge. 04Z
   mesoanalysis depicts increasing MLCINH, indicating a gradually
   decoupling boundary layer. Ongoing storms should continue to become
   progressively elevated with time, which will further limit the
   severe threat. In the next 1-2 hours though, isolated severe hail or
   wind may accompany the stronger storm cores given over 2000 J/kg
   MUCAPE and 40+ kts of effective bulk shear in place.

   ..Squitieri.. 08/18/2026

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

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

   LAT...LON   41810017 42449966 42819939 42949849 42829783 42619730
               42019729 41429742 41209772 41159845 41199910 41329945
               41810017 

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


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