We stumbled onto an interesting avalanche today at the Ant Knolls. To me, the most likely trigger seemed like a sledder while hill climbing. It could have been natural but it doesn't make much sense since there was no significant new snow load and no new wind loading on that particular slope. There was just a skiff of new snow on the bed surface indicating it probably released Sunday.
The weakness was facets below a fairly thick melt freeze crust. It appears that most of this terrain avalanched in the January cycle leaving a very shallow weak snowpack. The faceted layer was VERY loose.
Throughout the day, the only other activity that we saw was very minor, small pockets within the new snow that probably released Sunday when the wind picked up. There was some wind effect along the higher terrain with some larger pillows noted.