Headed up toward Chair about 6:00am, thinking (okay, wishing) there might be a climb in it. Two feet of powder on top of an icy layer with consolidated snow under that layer.
Halfway between the Snow Lake divide and Source Lake, did a couple of Rutschblock tests on different aspects. All blocks sheared as soon as both feet were gently planted. I'd rate the slopes as unstable and probably will stay that way until some wet weather consolidates it.
Based on this, I figured the north face of Chair was out of the question. The buttress might have gone, but it would have been a long slog on unstable slopes to get to the base of it.
So we went to Denny's in North Bend and ate eggs instead. Will try the face in February, if it's in.