Mesoscale Discussion 1983
   NWS Storm Prediction Center Norman OK
   0517 PM CST Fri Dec 10 2021

   Areas affected...Northern Mississippi and portions of southwest
   Tennessee.

   Concerning...Severe potential...Watch possible 

   Valid 102317Z - 110045Z

   Probability of Watch Issuance...60 percent

   SUMMARY...Watch 52 may need to be expanded eastward into northern
   Mississippi and western Tennessee

   DISCUSSION...Showers continue to deepen in the warm air advection
   regime along and east of the Mississippi River. As they deepen, some
   low-level rotation has been evident on some of the better
   mini-supercell structures. Expect this threat to continue as storms
   deepen further in a region of 0 to 1 km SRH around 250 m2/s2 per
   KNQA VWP. Eventual severe intensity is expected out of this
   activity, but timing is the primary question. If these storms
   intensify in the next hour, watch 552 may need to be expanded across
   the remainder of the MEG CWA. However, if the storm intensity
   remains muted for the next 60 to 90 minutes, this area may be
   covered by an eventual watch which will likely be needed east of
   tornado watch 552.

   ..Bentley/Grams.. 12/10/2021

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

   ATTN...WFO...HUN...MEG...JAN...

   LAT...LON   35448926 35798849 35268800 34238820 33788858 33838977
               34109032 35448926