Assuming you have people around that can locate you/dig you out (beacon/shovel/etc. you mentioned), and you manage to have some breathing space (that could allow you to survive for a few hours in the best case). If not, then probably those stats with lightning strike might be comparable, i.e. you rarely survive. There are plenty of "lone wolf" tourists/off-slope skiers. I used to ignore these when I was a reckless teen, now I try to be super careful.