Read this on kzone figured it would be good for discussion here as well....
it is good for discussion for sure. heuristic behavior, instead of fact? Here is the text: " I noticed a muffled ‘whumping’ sound as our skis broke through a thin layer of hoare frost about 30cm under the fresh layer of snow. We stopped and discussed our options. Due to this particular gully being known amongst locals as a safer option due to it’s short length and low pitch, also taking into account the fact that we had skied the line on previous trips in similar avalanche conditions without an issue,"
for those who remember what his an heuristic, I think that a decision base on local opinion (that can include avi post) and previous attempt...is not safe. This is short cut to what happen really.
I think that the wump was wind slab. As i can understand, the guy had a good "I buy a course" knowledge on what is hoare frost. Not sure that it is the reason why the wind slab collapse.