Mesoscale Discussion 0027
   NWS Storm Prediction Center Norman OK
   0352 AM CST Sat Jan 11 2020

   Areas affected...Western TN...Far Eastern AR...Northwest MS

   Concerning...Tornado Watch 7...

   Valid 110952Z - 111115Z

   The severe weather threat for Tornado Watch 7 continues.

   SUMMARY...Conditions remain supportive of organized thunderstorms
   capable of strong wind gusts and embedded QLCS tornadoes. A new
   watch will likely be needed downstream by 11Z across northern MS and
   western TN.

   DISCUSSION...Storms within the portion of the convective line
   affected far eastern AR, western TN, and northwestern MS appear to
   be a bit stronger and better organized. This is evidenced by the
   forward surges and higher storm tops recently observed. The already
   strong vertical shear over the region has increased over the past 2
   hours. Observations from the NQA VAD show 0-3 km storm-relative
   helicity increased from around 700 m2/s2 two hours ago to over 950
   m2/s2 on the 0924Z observation. Thermodynamic conditions have
   remained fairly constant, with temperatures in the upper 60s/low
   70s, dewpoints in the mid 60s, and MLCAPE around 500-1000 J/kg.
   These conditions remain supportive of organized thunderstorms
   capable of strong wind gusts and embedded QLCS tornadoes.

   ..Mosier.. 01/11/2020

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

   ATTN...WFO...MEG...JAN...LZK...

   LAT...LON   35449055 36298974 35798840 33488980 33289175 35449055