one key aspect of that would be how intense the front precip is. The “surprise” event a few days ago had extremely heavy front edge precip that tore through the dry air. That is one reason a lot of areas saw snow when models didn’t show it.
That hrrr image looks to have pretty impressive rates right at the get-go. That could aid in the wet bulb early on.
I really hope that will be the case for this event. I mean, if that sleet is extending to CAE, Charlotte should remain all snow. I still have my doubts, I don't want to get too excited. But I like this look. I really like where a lot of us sit.