A deep upper trough, developing through the central U.S. and swinging into the southeast states the Tuesday before Thanksgiving induced an area of low pressure along the eastern Gulf Coastal region. As the upper trough shifted into the eastern U.S., the surface low underwent explosive development as it moved northward along the southeast and Mid-Atlantic coastal region. The deepening surface low pulled cold air and moisture into the region bringing a period of snow to areas west of the Blue Ridge on one of the busiest travel days of the year. Snowfall amounts were generally in the one to three inch range, but several locations saw snowfall in the three to four inch range across southwest Virginia, northwest North Carolina, and southeast West Virginia. The heaviest snowfall within southwest Virginia was at Mount Rogers in Grayson county where eight inches of snow was observed. The heavy wet snow resulted and combined gusty winds resulted in power outages for several thousands residents of southwest Virginia counties.
Here are some of the snow reports from southwest Virginia as of mid-morning on the day before Thanksgiving, namely November 26, 2014. The amounts below represent the maximum amounts reported from these counties.
Alleghany (4E Covington) - 3 inches,|Bath (Warm Springs) - 4 inches,|Bedford (peaks of Otter) - 4 inches,|Bland (5N Bland) - 3 inches,|Botetourt (Fincastle) - 1.5 inch,|Carroll (Hebron) - 4.9 inches,|Craig (2W Simmonsville) - 6.5 inches,|Floyd (Check) - 4.5 inches,|Giles (Mountain Lake) - 5 inches,|Grayson (Mount Rogers) - 8 inches,|Montgomery (2SSW Christiansburg) - 5.8 inches,|Patrick (Meadows of Dan) - 3.8 inches,|Pulaski (2S Snowville) - 6.1 inches,|Roanoke (3ESE Cave Spring) - 2.5 inches,|Rockbridge (Raphine) - 4.0 inches,|Smyth (Sugar Grove) - 3.5 inches,|Tazewell (Burkes Garden) - 1.6 inch,|Wythe (Rural Retreat) - 3.0 inches.