Mesoscale Discussion 0047
   NWS Storm Prediction Center Norman OK
   1144 PM CST Thu Jan 11 2024

   Areas affected...Arklatex

   Concerning...Tornado Watch 9...

   Valid 120544Z - 120745Z

   The severe weather threat for Tornado Watch 9 continues.

   SUMMARY...Severe threat will increase across the western half of
   ww009 over the next few hours.

   DISCUSSION...Water-vapor imagery depicts a well-defined midlevel
   vort advancing east across the TX South Plains. Leading edge of
   large-scale support is spreading across north-central TX in
   association with left exit region of midlevel jet. Over the last
   hour or so, IR imagery suggests convection has gradually been
   deepening along the front, from east of SEP-DFW-southeast of Sherman
   TX. Lightning is now observed with this activity over Collin County
   and further strengthening is expected along the wind shift over the
   next few hours. Latest thinking is substantial increase in
   convection should be noted along the advancing front across the
   western portions of ww009 by 07z. While the frontal convection may
   become more linear with time, very strong shear supports the
   potential for supercells. Damaging winds are expected with this
   convection along with some risk for tornadoes.

   ..Darrow.. 01/12/2024

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

   ATTN...WFO...LZK...SHV...TSA...FWD...OUN...

   LAT...LON   33989640 35639230 33309230 31669639 33989640