Mesoscale Discussion 0372
   NWS Storm Prediction Center Norman OK
   0944 PM CDT Sun Apr 12 2020

   Areas affected...eastern Arkansas...northern Mississippi...and
   western Tennessee

   Concerning...Severe Thunderstorm Watch 111...114...

   Valid 130244Z - 130415Z

   The severe weather threat for Severe Thunderstorm Watch 111, 114
   continues.

   SUMMARY...Damaging wind gusts remain likely with ongoing convection.
    Local extensions of WW 114 will likely be needed across western
   Tennessee and northeastern Mississippi.

   DISCUSSION...An extensive linear segment has evolved from near BVX
   to near UOX and GLH.  The line has recently begun to accelerate
   eastward - especially across southeastern and east-central Arkansas,
   with multiple reports of wind damage and severe wind gusts at SGT,
   GLH, and LLQ over the past hour or so.  This line should affect
   portions of the Memphis Metro area over the next hour or so.  The
   line continues to be forced by a vigorous mid-level impulse just
   upstream, which is likely compensating for the fact that much of the
   downstream airmass has been overturned by prior convection.  Still,
   low to mid-60s F dewpoints were supporting 500-1500 J/kg MUCAPE,
   which is allowing for downward momentum transfer of very strong flow
   aloft, supporting the wind gusts.  

   Given the ongoing convective trends, portions of northeastern
   Mississippi and western Tennessee will likely need spatial
   extensions of WW 114 to address the ongoing wind-damage threat. 
   Likewise, areas of WW 111 that have been convectively overturned
   behind the leading edge of the convective band can be cancelled
   before the originally scheduled 04Z expiration time.

   ..Cook.. 04/13/2020

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

   ATTN...WFO...HUN...MEG...JAN...LZK...

   LAT...LON   35419127 35709095 35919034 36088967 36138863 35948818
               35518806 34468817 33368842 32678952 32449035 32459114
               32609130 32919132 33039131 35419127