| Trigger | Unknown | Remote Trigger | 0 |
| Avalanche Type | Soft Slab | Aspect | Unknown |
| Elevation | unknown | Slope Angle | unknown |
| Crown Depth | unknown | Width | unknown |
| Vertical Run | unknown |
Avalanche: Turnagain
Location: Tincan Trees
AAS Level 1 class toured up through the Tincan trees, north of the standard skin track.
Avalanche Details
We saw several D1 soft slabs on convex rollovers as we made our way up to treeline. Also saw a D2 soft slab in Hippy Bowl. Trigger unknown, could've been a cornice release from the ridgeline onto the slightly wind loaded slope below. Debris ran a good distance downhill.
Obvious signs of instability
| Recent Avalanches? | Yes |
| Collapsing (Whumphing)? | Yes |
| Cracking (Shooting cracks)? | No |
Observer Comments
We experienced a few whumphs as we made our may up through the lower elevation meadows.
Weather
Good conditions. Mostly cloudy with a few sun breaks, light winds, light snow flurries, temps warming a bit through the afternoon
Snow surface
Great riding conditions with 30 cm of F hard to 4F new snow. New snow stiffened up some through the day as temps warmed.
Snowpack
Dug a couple of test pits around 1250 ft on a NW facing 25 degree slope after experiencing several whumphs. Found 30 cm of new snow on top of a fragile 2-3 cm crust overlaying likely facets/rounding facets. HS was ~150 cm.
Test results: ECTN16, ECTP5, ECTP8, ECTP22 all failing on the facets below the crust (~35 cm down). All ECTPs propagated with a sudden collapse.