From a recent CAIC report .. it's going to be dicey for a while.
The culprit in all cases is faceted snow. The early season snow rotted away in November. It's weak, sugary depth hoar and facets now. More recent storms have laid down a slab of harder snow on top. The slab is now topped with soft, recent snow so it does not feel like a "hard slab." It is a hard slab, and the combination of stiffer snow on weak facets is proving potent. The remote triggers, extensive cracking, and large whumpfs are good evidence. The recent mild weather is not effecting the rotten snowpack foundation, and we will be dealing with this problem for some time to come.