Mesoscale Discussion 0121
   NWS Storm Prediction Center Norman OK
   0600 PM CST Wed Feb 12 2020

   Areas affected...Portions of central/northern AL and middle TN

   Concerning...Severe Thunderstorm Watch 34...

   Valid 130000Z - 130130Z

   The severe weather threat for Severe Thunderstorm Watch 34
   continues.

   SUMMARY...Damaging winds should remain the primary threat this
   evening. A tornado or two may also occur.

   DISCUSSION...A shallow convective line has consolidated early this
   evening along/just ahead of a cold front. Low-level flow across much
   of central/northern AL into middle TN remains quite strong per VWP
   estimates from KGWX and KHTX, with winds quickly increasing to 50-60
   kt in the 0-1 km layer. The overall line is moving quickly
   northeastward around 45-55 kt, with individual elements embedded
   within the line moving even faster. Given the very strong flow
   present largely parallel to the surface front, a mainly linear mode
   should continue to dominate this evening. Damaging winds will likely
   remain the primary threat, with a few reports of trees and building
   damage already noted. A tornado or two cannot be ruled out in the
   short term, mainly across northern AL where low-level winds have
   locally backed to south-southeasterly as a surface low develops and
   gradually deepens into middle TN. Instability will remain weak, but
   sufficient to support strong/gusty surface winds.

   ..Gleason.. 02/13/2020

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

   ATTN...WFO...OHX...BMX...HUN...

   LAT...LON   33848816 34288762 34718727 35228705 35648677 35968643
               36108618 36018580 35618577 35268586 34238642 33798697
               33448766 33358822 33848816