ECTP23 at 50cm above ground, just crust on 2-3mm depth hoar. HS 160cm. In photo the failure layer in test was about 15cm below the Christmas eve storm/facet interface.
Also, worth noting: I observed ski tracks likely from yesterday which showed a group of approximately four skiers who skied to the bottom of the lower roll in the trees in Wolverine Bowl then gathered and skinned up right on the toe of the slope all together. If they had remotely triggered the slope above they would have all been involved in the slide. It would have taken an extra 25 seconds to ski to the other ski of the flats and give a reasonable berth to avoid this possibility.