FV3 has light snow starting at 03z in RIC. Still snowing at 06z and the snow reaches DC at 06z. Ice starts in RIC at around 12z and the heavy snow reaches DC at 12z. Sleet begins in RIC at 15z, heavy snow in DC at 15z before the flip.
Rain switch over seems to be happening around 4pm *in Richmond*. Ice looks to be a threat more so than before. I think the models are picking up on the CAD