Mesoscale Discussion 0349
   NWS Storm Prediction Center Norman OK
   0930 AM CDT Sun Apr 12 2020

   Areas affected...Portions of far east TX into northern LA

   Concerning...Tornado Watch 105...

   Valid 121430Z - 121600Z

   The severe weather threat for Tornado Watch 105 continues.

   SUMMARY...A bowing line of storms will continue to pose a damaging
   wind and tornado risk across northern Louisiana this morning.

   DISCUSSION...A small, but well organized MCS ongoing across far east
   TX will continue into parts of northern LA over the next couple of
   hours. This convection is likely being supported by a lead shortwave
   trough moving northeastward over the ArkLaTex region. VWPs from the
   past hour from KSHV show strengthening flow in the 1-4 km AGL layer,
   with ample low-level shear present. 14Z surface analysis shows a
   meso-low embedded just behind the ongoing line, and a marine warm
   front will continue to lift northward across central/northern LA
   this morning. A moderately unstable airmass along/south of this
   boundary and strong effective bulk shear will likely maintain the
   organized structure of this line for at least the next couple of
   hours. Scattered to numerous damaging winds will be a concern given
   the linear storm mode. Embedded tornadic circulations will also
   likely occur, with effective SRH in excess of 400-500+ m2/s2
   supporting quick low-level spin ups.

   ..Gleason.. 04/12/2020

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

   ATTN...WFO...SHV...

   LAT...LON   31339432 31519463 31909427 32339420 32729420 32969213
               31649206 31339432