There's a good chance a person can trigger a slab avalanche on a buried persistent weak layer of facets 2-4 feet deep (photo below). Where the snow is deepest, this layer may be starting to gain some strength as two regular observers found on Thursday, but they experienced one very loud collapse which then told them the opposite. In areas with shallower snow, like low elevations or places scoured by winds, this layer remains weak.

My partner and I rode throughout Copenhagen Basin yesterday and found an unstable layer of surface hoar on top of these facets (video below), and we would have easily triggered a slide if we had gotten on a steep slope. Toby checked out low elevation avalanche activity in Garden City where the snowpack was thin and weak, and then overloaded by wind drifting.

I would avoid avalanche terrain simply because this layer exists. With the potential for a lot of snow next week, things could change a lot (probably for the better) in coming weeks.

Hard slabs of wind drifted snow may produce avalanches on their own, but the likelihood should be quickly decreasing. The main danger with these hard wind slabs from Wednesday's winds is triggering a deeper avalanche that fracures on the persistent weak layer discussed above. What makes these hard slabs so tricky is that they can be a little more stubborn, and they can let a person get further onto them before they avalanche. Or they may let several people ride on top of them before sliding.