Dug a mini-pit and observed 10cm of hard (zipper/wind) crust on the ridge spine. Didn't dig a full pit or do compression tests because of concerns over triggering minor cornice overhang on east side of the ridge. (I determined the ridge edge using avalanche probe and stepped back from the edge approximately 2' before disturbing the snowpack).
The [abbreviated] observations at the summit (47.5089, -121.6952) were as follows:
- 1 finger pressure interface at 74cm from base (stout wind crust above it).
- 4 finger pressure interface between 74cm and 66cm from base.
- Fist relative pressure interface at and below 66cm from base.
I noticed behavior conducive of wet loose concerns later on in the day given the region and future (weekend/weekly) forecast for the area.
In particular, when coming down the Mt. Teneriffe trail at the Dixie Peak junction (47.5138, -121.7073) at 11:45, I noticed isolated planar breakage of the top layer when using my snowshoes.