Snowpack obs from Shirley Canyon

We did not observe and obvious signs of instability on our tour today, although my snowpit did produce a couple of unstable results on the Dec 11th pwl (see profile). In addition to checking in on the Dec 11th layer, we were keen to look around for any recently buried surface hoar. It was found @ 7100' on a north aspect, ~4cm down (see picture). Informal "crystal card sheer tests" produced planar results. We'll continue to watch this layer. There was also widespread 2-3mm surface hoar observed (on the surface) throughout the zone today.