Storm Prediction Center Mesoscale Discussion 53

   Mesoscale Discussion 0053
   NWS Storm Prediction Center Norman OK
   0801 PM CST Tue Jan 21 2025

   Areas affected...central and eastern portions of the Carolinas

   Concerning...Heavy snow 

   Valid 220201Z - 220700Z

   SUMMARY...Moderate to heavy snow should gradually become widespread
   through early tonight across portions of the central and eastern
   Carolinas.

   DISCUSSION...700 mb warm-air and moisture advection are increasing
   over central and eastern parts of the Carolinas with the approach of
   a pronounced 500 mb trough that is traversing the central
   Appalachians. Beneath the 700 mb moistening, strong surface-850 mb
   cold-air advection is contributing to further saturation and
   sensible cooling of the column to support a predominance of snow,
   which is currently being indicated by surface observations on a
   widespread basis. Ahead of the upper trough, 700 mb frontogenesis is
   intensifying, which should support increased snowfall rates. As
   such, in addition to the transition to snow, 0.5-1.0 inch/hour
   snowfall rates may develop over the next couple of hours, as also
   suggested by some of the latest high-resolution guidance runs.

   ..Squitieri.. 01/22/2025

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

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

   LAT...LON   31968072 32388112 33088159 33798169 34438124 35427983
               35787825 36017695 36227604 35877554 35337562 34927650
               34557721 34057805 33607881 32857959 32288042 31968072