Mesoscale Discussion 1879
   NWS Storm Prediction Center Norman OK
   0613 PM CST Thu Dec 24 2020

   Areas affected...the eastern Carolinas

   Concerning...Tornado Watch 518...

   Valid 250013Z - 250215Z

   The severe weather threat for Tornado Watch 518 continues.

   SUMMARY...Locally damaging gusts or a brief tornado remain possible
   over the next several hours across eastern South and North Carolina.

   DISCUSSION...A leading front continues to surge east from northern
   FL across SC and into central NC as of 00Z. At times, storms along
   the front into southern SC have shown rotation, with possible brief
   QLCS spinups. Low-level shear remains favorable ahead of the front,
   though instability appears to be the limiting factor. Still, with
   moderate hourly pressure falls and 60s F dewpoints, further reports
   of wind damage or brief tornadoes cannot be ruled out.

   Meanwhile, convection well east of the front across eastern NC has
   not been particularly productive despite strong shear and MLCAPE in
   excess of 500 J/kg. Given the approaching front and continued
   pressure falls, an isolated tornado remains possible with the
   stronger storms. Low-level shear is also strongest in these areas,
   with up to 400 m2/s2 0-1 km SRH.

   ..Jewell.. 12/25/2020

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

   ATTN...WFO...AKQ...MHX...RAH...ILM...CHS...CAE...

   LAT...LON   32727964 32548010 32828053 33518050 34138016 34667943
               35357903 36197884 36667817 36647666 36267533 35707501
               34887532 34217631 33317760 32987868 32727964