This upper-air forecast map from the ECMWF model for the day after Chistmas shows a massive upper-trough and closed-low over the Midwest. The implications are that a significant surface storm will affect the Eastern U.S., with residual cold surface air being slowy eroded by warm winds aloft. This means mostly rain, but there could be some concern for ice over western VA, so trends in the guidance will be monitored over the next week.
-Jim