Seen from a distance. Probably a couple days old. Estimating 1-2' deep, 180' wide and 150' long. Natural trigger.
Signs of Unstable Snow
Did you see shooting cracks?
Did you experience collapsing or whumpfing?
Shallow, soft wind crust on exposed W face, 0.5-1" deep. Dense 2" wind slab on Ridgeline, isolated 10' diameter collapse where ridge began rolling to the E. Snow pit at 8100, E face, 170 cm depth. Consistent pencil density below wind affected snow other than an Ice layer at 98 cm. Test results were CTN and ECTX. S facing slopes were developing breakable sun crusts.