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