Mesoscale Discussion 1608
   NWS Storm Prediction Center Norman OK
   0647 AM CDT Fri Aug 28 2020

   Areas affected...portions of northern MS...western TN and far
   western KY

   Concerning...Severe potential...Watch unlikely 

   Valid 281147Z - 281315Z

   Probability of Watch Issuance...20 percent

   SUMMARY...A band of convection may produce transient, rotating cells
   this morning. A brief, weak tornado can not be ruled out, but the
   overall threat is expected to remain low.

   DISCUSSION...A band of convection on the eastern periphery of
   Tropical Depression Laura is modestly increasing this morning from
   north-central MS into western TN. Individual cells are tracking
   toward the north/northeast around 35-40 kt, while the system as a
   whole is developing northeastward. This should eventually bring the
   band of convection into portions of far western KY in the next
   couple of hours as well. 

   While the airmass across the region is currently only weakly
   unstable, surface dewpoints are in the low to mid 70s. Furthermore,
   this convection is in a corridor of maximized low level SRH (0-1 km
   SRH greater than 250 m2/s2). This is further supported by region VWP
   data showing enlarged low level hodographs. Areas of transient
   low-level rotation have been noted at times over the past 30-45 min
   in velocity data from KNQA. This may continue through the morning
   hours a brief, weak tornado can not be ruled out. However, a watch
   is not immediately anticipated as the the threat should remain
   short-lived with any cell and sporadic in coverage. As the airmass
   undergoes diurnal heating and further destabilization through the
   morning hours, the need for a watch may need to be re-evaluated, but
   the short-term threat is expected to remain low.

   ..Leitman/Edwards.. 08/28/2020

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

   ATTN...WFO...PAH...MEG...

   LAT...LON   34128947 34158977 34248985 34588986 35138965 35428955
               35938942 36088940 36788922 36908897 36868863 36718845
               36248841 35698841 35088852 34788868 34338902 34128947