Storm Prediction Center Mesoscale Discussion 100

   Mesoscale Discussion 0100
   NWS Storm Prediction Center Norman OK
   0609 PM CST Sat Feb 15 2025

   Areas affected...western Tennessee and southwestern Kentucky

   Concerning...Tornado Watch 8...

   Valid 160009Z - 160145Z

   The severe weather threat for Tornado Watch 8 continues.

   SUMMARY...Tornado threat continues within WW008. Threat will
   continue downstream into portions of Middle Tennessee and Western
   Kentucky.

   DISCUSSION...A broken line of thunderstorms has shown an uptick in
   intensity over the last hour across the Arkansas/Tennessee border.
   Line embedded supercells are observed, with activity ahead of the
   main line also exhibiting rotation. The low level jet, with axis
   currently from central LA to middle TN/southern KY, is progged to
   continue strengthening through the evening, with low level shear
   becoming more favorable. This strong southerly flow has also ushered
   in deeper moisture and a more favorable air mass across western
   Tennessee, steadily approaching southern Kentucky.

   Given the progress of the main line, maintenance of individual cells
   ahead of the line will be difficult. However, deep layer shear of
   50-55 kts will continue to support line embedded mesocyclones and
   potential for damaging wind and tornadoes. This threat is spreading
   eastward and will likely necessitate a  downstream watch into
   southern Kentucky soon.

   ..Thornton/Hart.. 02/16/2025

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

   ATTN...WFO...LMK...OHX...PAH...MEG...

   LAT...LON   35189070 36118999 36868928 37178815 37208772 37198710
               37198685 37058629 36928623 36678629 36198647 35498716
               35198750 35018794 35038807 35018830 35028869 34968928
               34979029 35189070