Snow will develop from southwest to northeast during the pre-dawn hours early Sunday morning. Snow may fall heavily at times between 3AM and 11AM Sunday before tapering off and ending as flurries between 12 and 3PM.
Due to the overnight timing and heavier nature of the precipitation, this will be one of those wet snows that cover all untreated surfaces and will be great for making snowmen and snowballs.
In a rather rare turn of events, it appears that the Metropolitan Area has the best chance of remaining all Snow and receiving the heaviest accumulations. Sleet may mix in with the snow across southern Maryland and the northern neck of Virginia.
The latest North American Model (NAM) below shows the timing of the heavy snow moving in in earnest between 3AM Sunday and tapering off around noon before ending by 2pm in DC.
I’m hoping that I will not need to issue any additional updates as the GFS and European forecast models are remarkably consistent and both in agreement today.