Mesoscale Discussion 0364
   NWS Storm Prediction Center Norman OK
   0527 PM CDT Sun Apr 12 2020

   Areas affected...southeastern Louisiana and far southern Mississippi

   Concerning...Tornado Watch 107...

   Valid 122227Z - 122330Z

   The severe weather threat for Tornado Watch 107 continues.

   SUMMARY...Cells developing near Ascension, Livingston, and
   Assumption Parishes are expected to become supercellular and
   potentially tornadic over time.

   DISCUSSION...Radar/satellite imagery indicates continued robust
   growth in convection across Ascension, Livingston, and Assumption
   Parishes in southeastern Louisiana.  These storms have successfully
   breached the cap and are exhibiting cellular storm mode in an
   environment characterized by strong low-level shear (40 kt 0-1km),
   strong deep shear (60-65 kt 0-6km) and moderate to strong
   instability (2000+ MLCAPE) amidst 70-75F dewpoints and near 7 deg C
   lapse rates aloft.

   Given the environment, the storms are expected to acquire rotation
   and eventually pose a risk of all hazards, including strong
   tornadoes.

   ..Cook/Hart.. 04/12/2020

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

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

   LAT...LON   30079174 30599145 31109106 31339063 31389015 31218989
               30689008 30289042 29939087 29819137 29829153 29829171
               29959177 30079174