Mesoscale Discussion 0663
   NWS Storm Prediction Center Norman OK
   0308 PM CDT Thu May 05 2022

   Areas affected...Parts of eastern Texas...northwestern Louisiana and
   southeastern Arkansas

   Concerning...Tornado Watch 181...

   Valid 052008Z - 052215Z

   The severe weather threat for Tornado Watch 181 continues.

   SUMMARY...Organizing thunderstorm activity posing a risk for
   potentially damaging wind gusts and a couple of brief tornadoes
   remains possible through 6-7 PM CDT.

   DISCUSSION...An initial developing mesoscale convective vortex has
   become better defined across the Texarkana AR area, and appears
   likely to continue to migrate east-northeastward toward Pine Bluff
   AR through 22-23Z.  A bowing segment evident in radar reflectivities
   to its south has shown recent weakening trends.  However, isolated
   supercell structures developing near a trailing outflow boundary now
   just south of Shreveport LA may be maintained another couple of
   hours by inflow from a lingering narrow corridor of moderately large
   mixed-layer CAPE south of Shreveport through the Monroe LA vicinity.

   Otherwise, deep-layer shear remains strong farther to the southwest,
   and a clustering of storms now north of College Station TX may still
   intensify further and organize, aided by inflow of seasonably moist
   air with moderately large CAPE.  This could pose increasing risk for
   potentially damaging wind gusts and perhaps a brief tornado or two
   across the Huntsville and Lufkin TX vicinities during the next
   couple of hours.

   ..Kerr.. 05/05/2022

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

   ATTN...WFO...JAN...LZK...SHV...HGX...FWD...

   LAT...LON   33659320 34059206 33679106 32459253 31429361 31109467
               30509557 30419658 31339583 32209494 32999342 33659320