Mesoscale Discussion 0589
   NWS Storm Prediction Center Norman OK
   0207 PM CDT Wed May 08 2019

   Areas affected...Far East Texas...Western Louisiana and Far
   Southwest Arkansas

   Concerning...Severe potential...Watch likely 

   Valid 081907Z - 082000Z

   CORRECTED FOR GRAPHIC TEXT LABEL

   Probability of Watch Issuance...95 percent

   SUMMARY...A severe threat is expected to develop across far east
   Texas and western Louisiana late this afternoon. Tornadoes, wind
   damage and hail will be possible. Weather watch issuance will likely
   be needed soon.

   DISCUSSION...The latest radar imagery shows a linear MCS extending
   from northeast Texas southwestward into south-central Texas. A moist
   airmass with surface dewpoints in the lower 70s F is located ahead
   of the MCS across the Texas Coastal Plains and Sabine River Valley.
   The RAP is estimating MLCAPE values across the moist sector in the
   2000 to 3000 J/kg range. In addition, the Houston, Lake Charles and
   Fort Polk WSR-88D VWPs have moderate deep-layer shear. The low-level
   shear on these VWPs are also enhanced with 0-3 km storm relative
   helicity generally in the 300 to 400 m2/s2 range. This will be
   favorable for tornadoes associated with rotating cells embedded in
   the line. Wind damage will also be likely with bowing segments as
   well.

   ..Broyles/Guyer.. 05/08/2019

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

   ATTN...WFO...LCH...SHV...HGX...

   LAT...LON   33069426 32679463 31829477 31109491 29999583 29379618
               29029587 29139523 29669428 30079368 30579311 31009296
               31649307 32829314 33159366 33069426