fal308 wrote:I do know that the Mt Rose highway going into Tahoe requires you to carry chains during the winter
I recall this from last year, driving to and from Tahoe (2-meter high walls of compacted snow on either side of the road), although I don't remember the dates during which that is enforced (I think it was written on the signs).
What I do remember, is that my friends and I had planned to go through the ghost town of Bodie after leaving Tahoe. We were on the road, with T-shirts and sunglasses, in the desert, and the small road leaving highway 395 was blocked, the sign on the road block said that snow prevented access to Bodie, and the road would be blocked at least for another 2 weeks..
That was March 30th last year (and it snowed in Vegas some 10 days later).
I also remember some traffic signs leaving Tahoe, saying something like "absolutely no stopping at any time, high avalanche risk in the area"