Mesoscale Discussion 1676
   NWS Storm Prediction Center Norman OK
   0721 PM CDT Wed Sep 01 2021

   Areas affected...southern Mississippi

   Concerning...Severe potential...Watch unlikely 

   Valid 020021Z - 020145Z

   Probability of Watch Issuance...5 percent

   SUMMARY...The potential for sporadic wind damage to trees and power
   lines will persist for a couple more hours this evening before
   diminishing with the loss of diurnal heating.

   DISCUSSION...A line of thunderstorms capable of producing strong,
   gusty thunderstorm outflows continues to push southward across
   Mississippi this evening. Although large-scale deep-layer shear is
   weak, storm-scale and mesoscale processes have resulted in shear
   around 30 knots across the area. Additionally, extreme instability
   has resulted in the development of a robust cold pool that continues
   to push southward, with new thunderstorm development along the
   leading edge. The overall environment will continue to support the
   potential for strong, cold downdrafts capable of producing sporadic
   wind damage, especially to trees and power lines, for the next
   couple of hours given relatively steep low-level lapse rates. The
   threat should diminish later this evening as the boundary layer
   stabilizes, and lapse rates weaken, with the loss of diurnal
   heating.

   ..Marsh/Guyer.. 09/02/2021

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

   ATTN...WFO...MOB...JAN...LIX...

   LAT...LON   32329091 32809035 32768931 32488848 31568828 31098842
               30908895 31048998 31649082 32329091