Indeed, we have a dire situation if/when the stall occurs. Do you have details about the timing and movement of the fronts/ridges influencing the projected stall?
Here is a map of current stream levels in Virginia.
https://waterdata.usgs.gov/va/nwis/rt
Do you see all of the blue dots? Most of them are concentrated along the Blue Ridge Mountains and Shenandoah Valley.
An additional 3-4 ft of rainfall in those areas could most definitely be catastrophic. And a lot of hurricanes that make landfall in North Carolina end up in Central Virginia.