Whistler Slackcountry Obvs

Thin 5-10cm wind slab formed with the fresh storm snow throughout Sunday. A 1-2cm thick breakable rain crust from Saturday sat beneath the fresh surface snow. Below that was approx. 20cm of rounds, 3 finger, on top of Nov 23rd rain crust (roughly 5-10cm thick, pencil hardness, approx. 30cm below surface). Shovel shear test inconclusive, CT also inconclusive. Eventually got a failure on the 30cm deep rain crust, broken planar.