The trend is in part due to the shift of the heaviest axis of precip eastward. The model has stayed rock solid with temps, aside from adjustments to the periphery and this run did push the freezing line further south, with all of wake county getting in on the action
If you don't have generator, I would recommend going out and buying a camping stove. I think the ones that run on gasses other than propane can be used indoors if in a well ventilated area, but don't quote me on that.
FRAM isn't a model, it's an algorithm that calculated true accrual of ice. It tends to be much more conservative than just straight accumulation maps.This is why it's concerning, because it will account for the portion of the rain that's just runoff.
I'm on mobile, but the RGEM is as classic an ice storm signal as it gets. Temps don't rise about 30 in the triad for almost the entire event and over 1.5" of precip.
The few factors working against significant icing: Rates are a bit heavier this go around and it will be fairly warm and sunny the day before. Also more of the precip will be during the day.
Yeah, I mean, for the Triad every half degree is going to account, especially as the precip is going to be pretty heavy. At 31 degrees, I don't see more than .1-.2" accreation. At 29 I could see .3-.4"
Interestingly, if anything the HRRR has backed off somewhat the past couple runs on how cold it gets. Minor differences, but now it seems to hold temps pretty steady throughout the night, instead of dropping further.