My prior experience says if the CMC actually has the right large-scale pattern being forecast, it's the most realistic of the global models in its depiction of CAD although low-level cold is usually overdone in this model.
The potential for us to build a snow pack down into VA and this kind of high being in play in this pattern does suggest some bust potential here by the global models. I'd feel a lot more confident about a solution once the NAM & RGEM provide their respective opinions tomorrow & Wednesday. It's also not like this is 6-7+ days out, we're only ~4 days or so away from this occurring, so as crazy as the CMC is atm vs other globals we're definitely not in la-la land. I'm personally leaning 20/80 for/against an ice storm here for now, it's hard to feel any confidence in this solution when the only model in your camp is the "crazy uncle".
Fwiw, the 6z CMC basically continues to hold serve, delivering a legit ice storm to GSP-CLT-GSO
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