I'm from the RDU area.
I think we will see at least 4-6 hours of snow beginning around 2-4 am and ending around 8-10 am. Likely will accumulate about 2-4" of snow sleet mix.
This is slowly trending from what appeared to be a near miss to a potential major snowfall for RDU. But will a warm nose appear is the question.
The latest FV3 keeps temperatures below freezing here all day Sunday with no changeover to rain.