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Mesoscale Discussion 488
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   Mesoscale Discussion 0488
   NWS Storm Prediction Center Norman OK
   0538 PM CDT Tue Apr 28 2020

   Areas affected...southeast Louisiana through southeast Mississippi

   Concerning...Severe potential...Watch unlikely 

   Valid 282238Z - 290045Z

   Probability of Watch Issuance...20 percent

   SUMMARY...Thunderstorms may continue to pose some risk for a few
   instances of locally strong to damaging wind gusts into early this
   evening from southeast LA through southeast MS. Overall threat does
   not appear to warrant a WW at this time, but trends will continue to
   be monitored.

   DISCUSSION...A line of storms extends from far southern MS into
   southeast LA, and is moving southeast at 15-20 kt. Instability
   decreases with eastern extent downstream from the line with MLCAPE
   ranging from around 1000 J/kg over southeast LA to near or below 500
   J/kg in the boot heel of MS. Soutwest winds aloft with 30-35 kt
   effective bulk shear are parallel to the line, limiting the speed of
   forward propagation. The mesoscale environment and convergence along
   a well-established cold pool will continue to support multicell
   linear structures into the remainder of southeast LA and far
   southern MS this evening.

   ..Dial/Edwards.. 04/28/2020

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

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

   LAT...LON   29869108 30069079 30319044 30729017 31228990 31138943
               30408931 29758990 29589081 29869108 

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