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Storm Prediction Center Mesoscale Discussion 2063

Published Date and Time: 2026-08-20 21:44:00



Mesoscale Discussion 2063
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   Mesoscale Discussion 2063
   NWS Storm Prediction Center Norman OK
   0841 PM CDT Thu Aug 20 2026

   Areas affected...Parts of central Mississippi

   Concerning...Severe Thunderstorm Watch 606...

   Valid 210141Z - 210245Z

   The severe weather threat for Severe Thunderstorm Watch 606
   continues.

   SUMMARY...The risk of strong to severe downbursts will continue for
   another hour or two.

   DISCUSSION...The latest radar data from KDGX depicts
   outflow-dominant thunderstorms, with new cell development along
   outflow boundaries. The JAN 00Z sounding sampled steep low-level
   lapse rates and moderate-strong surface-based buoyancy, and despite
   weak deep-layer flow/shear, this environment remains favorable for
   strong to severe downbursts. Given the overall lack of convective
   organization, the severe risk should gradually diminish over the
   next couple hours as the boundary layer nocturnally cools.

   ..Weinman.. 08/21/2026

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

   ATTN...WFO...JAN...

   LAT...LON   31809044 32139054 32969026 33328991 33508949 33398887
               33038861 32338876 31788907 31528965 31629025 31809044 

   MOST PROBABLE PEAK WIND GUST...55-70 MPH


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