I'm keeping with my 3 to 6" forecast for Richmond. Isolated areas in Central Virginia will get more.
RPM also shows a plausible solution, though I'm sad that the 12Z data is unavailable. The 15Z data shows an explosion of 6 to 8" of snow in Central Virginia. This is probably caused by the rapid strengthening of the storm as it moves off the coast. Precipitation rates will increase and bring colder air down from aloft.
The GFS continues to change its' solution each run. The key here is the strength of the storm. GFS never has the central pressure dropping below 1000 MB unlike the NAM and ECMWF, which have the pressure dropping to 996 MB. A weaker storm means weaker cold air advection - both horizontally and vertically.
I'm not buying this solution. This storm "over-achieved" what the models predicted here along the West Coast, so the same could occur farther east. I think it's better to be prepared for a snow event than to be surprised Monday morning with 6" of snow on the ground. Worst case scenario...GFS is right and I'm eating crow Monday morning.