Went to Cardiac Ridge to have a look at the avalanche that Chris Cawley noted yesterday. We entered Cardiff through the N facing Keyhole, experienced some minor sluffing but it wasn't packing much of a punch or running very fast. Walked up the slide path on Cardiac Ridge, it was a fairly large slide with a 5ft crown at the deepest point, and ran full track to the flats with a large debris pile, I was not feeling to good about investigating the crown because there was a big area of hang fire still in place above it. I think Chris was on the right track when he mentioned a large wind slab failing on a layer of graupel just beneath the cliffs. All the other activity in the area was mostly sluffing with one shallow soft slab below the Cliffs in Ivory Flakes. Things seemed fairly stable in the terrain covered, we skied the flanks of the slide on Cardiac Ridge with no further activity.

Photos: the avalanche on Cardiac Ridge, skier triggered sluffing in the Keyhole, natural sluffs in Ivory Flakes.