Yeah, if there's western snow forecast, I'm going to divert south to I-10. I'm not fully confident in these tires to be mountain pass ready.
Likely. Looks like it's snowing there now (or will be soon). They're predicting 3-5" today and tomorrow. That should be manageable on I-40. I don't know about highway 89. That's a LOT more rural so plows being out isn't as predictable.You may run headlong into that snow around Flagstaff then.