The word from GSP...
Clouds will begin to increase tonight as storm system
across southern Georgia and southern South Carolina amplifies and
then moves up the eastern coast. Most of the precipitation with
this system is southeast of the GSP region, but some is expected
Tuesday morning. Cold-air damming with northeasterly surface flow
will keep surface temperatures low enough for possible snow, without
making much of a warm nose. 12Z NAM soundings show clear-cut snow
soundings in some places, though with surface temperatures just
barely cold enough. Tuesday morning lows, which take wet-bulb effect
into account to some extent, are generally just above freezing in
piedmont areas. Areas with heavier precipitation could see more wet
bulbing, and have a greater chance of getting some snow
accumulation. Both the NAM and the HREF have the most snow along
south of I85 where heavier precipitation and more wet-bulbing
occurs. Otherwise, rain mixed with snow with fairly quick melting is
anticipated Tuesday morning, with some slush possible on area roads.
Higher elevations in the mountains may see general snow, but precip.
amounts are expected to be lighter there.