I have been though a lot of nasty ones over the years some close to what the eastern guys have been getting hit with lately. Not fun. in recent memory was a 14" one with a lot of drifting- wet cement type. Lost a account over that one - didn't get there soon enough- funny part was even if I had they weren't going any where as the roads had not been plowed yet and most had 12" on them. 12" clearance to axles, 14,000# worth of truck - 4wd and I was having trouble, no way those little cars were going anywhere except to get stuck and there in lied the main problem. It is what it is.