Triggered persistent slab avalanches 1 to 2 feet deep, releasing on sugary or faceted old snow are possible in some areas today, especially on drifted smooth upper elevation slopes. The shallow old snow from the Halloween storms remained on upper elevation north facing slopes, and it has become very weak and faceted.. Sustained and very strong east wind scoured snow from exposed terrain and drifted it into lee slope avalanche stating zones and other terrain influenced deposition areas. East winds are somewhat unusual, as our prevailing winds are normally from the west, so we'll find hard wind slabs in some unusual or unexpected areas.
You could trigger a persistent slab avalanche on a steep drifted slope today, especially in a terrain feature like a gully or scoop that has old faceted snow as a basal layer. Hard slabs also likely formed around sub-ridges, timber stringers, and cliffs or rock outcroppings. Persistent slab avalanches could be triggered remotely, from a distance, or worse from below. Keep in mind that with shallow early season snow cover and sharp rocks everywhere, a ride in even a small avalanche will be fairly dangerous. Reassess your route in the case of obvious signs of instability like fresh avalanche activity, cracking within the new snow, or audible collapsing.