Mesoscale Discussion 0013
   NWS Storm Prediction Center Norman OK
   0509 PM CST Wed Jan 06 2021

   Areas affected...Parts of upper Texas and southwest Louisiana
   coastal areas

   Concerning...Severe Thunderstorm Watch 2...

   Valid 062309Z - 070045Z

   The severe weather threat for Severe Thunderstorm Watch 2 continues.

   SUMMARY...A risk for damaging wind gusts and/or an isolated tornado
   remain possible, mainly across far southern and southeastern
   portions of the Houston area, near/northwest through north of
   Galveston through 6-7 PM CST.

   DISCUSSION...Ongoing squall line with embedded supercell structures
   appears largely supported by mid-level forcing for ascent, ahead of
   the vigorous short wave trough now pivoting east of the central
   Texas Interstate 35 corridor toward the Sabine River/Piney Woods. 
   This is contributing to lift through warm capping layers, but, north
   of middle Texas coastal areas, boundary-layer moisture return has
   only been sufficient for very weak mixed-layer CAPE across and
   northeast of the Greater Houston Metropolitan area.

   Based on latest observational data, potential for substantive
   further intensification of the evolving convective system appears
   minimal as activity progresses across the coast into coastal waters
   between now and 00-01Z.  The primary severe weather potential
   probably will remain focused with the supercell/bowing segment in
   radar reflectivities now spreading south of Houston toward coastal
   areas near/north of Galveston.  Low-level hodographs across this
   region have been moderately large and clockwise curved, and could
   still contribute to a risk for locally damaging wind gusts and/or an
   isolated tornado or two.

   ..Kerr.. 01/06/2021

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

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

   LAT...LON   29219550 29449516 29889464 29849421 29759369 29119452
               28769517 28799591 29219550