South of Three guardsmen

Large persistent slab avalanches in the Rainy hollow area with spectacular propagation. Observed cornice fall and other slab avalanches on Northerly aspects. Dug a pit at 5,500ft on a NW aspect and found a reactive slab down 45cm that propagated on extended column test ECTP21. It failed on faceted snow below a crust. Overall poor structure below this interface with punchy layers and strong over weak layering. At the surface on the northerly was a layer of surface hoar over a firm supportable surface. Big cornices and evidence of recent cornice failure.

Whumphing along ridgelines and around shallow areas.