WPC's Winter Weather Forecast Discussion
Couple of highlights:Some of this WAA could be intense asreflected by strengthening 925-700mb fgen, well aligned into thedeep DGZ (>70% chance of at least 100mb of DGZ depth according tothe SREF). This will support not only expanding snowfall, but
intensifying snowfall such that by 00Z/Sunday at least moderate
snowfall rates should encompass nearly the entirety of the
Carolinas and into northeast GA and southern VA.WPC probabilities for the event are quite robust for both theAppalachians and eastern North Carolina, where they are above 50%for 8+ inches, and 30-50% for 12+ inches. The greatest potentialfor more than 12 inches appears to be eastern NC where thedeformation band may pivot, but a widespread 4-8" snowfall appearslikely from southern VA through northern SC, with impactfulaccumulations expected in areas like Richmond, VA, Charlotte andRaleigh, NC, Columbia, SC, and even into Atlanta, GA. Farthernortheast, WPC probabilities are 30-50% for 4+ inches across theCape and Islands.
