From email: "There was upside-down trail breaking in the lower elevations today, and hazardous conditions around 8700' as the slab got thicker. The cold temps of last week definitely weakened/ faceted the snow in the thinner snowpack areas.
I intentionally triggered some cracking and a D1 soft slab remotely. The slab was about 6"-1.5' deep and about 50' wide. It was a SE aspect around 8700.
Above 9k', the snow structure was looking better, and I was getting ECTNs (snowpit attached), and no more collapsing nor cracking."