| Trigger | Natural | Remote Trigger | 0 |
| Avalanche Type | Soft Slab | Aspect | South Southwest |
| Elevation | 2200ft | Slope Angle | unknown |
| Crown Depth | 24in | Width | 30ft |
| Vertical Run | unknown |
Avalanche: Turnagain
Location: Tincan Trees
Standard up-track to Beaded Stream wx station/treeline.
Avalanche Details
Two natural avalanches were observed in the Snake Pit on Tincan in adjacent gullies. Evidence of propagation down the gully walls.
Obvious signs of instability
| Recent Avalanches? | Yes |
| Collapsing (Whumphing)? | Yes |
| Cracking (Shooting cracks)? | Yes |
Observer Comments
Whumpfing/collapsing observed near treeline. Most significant one was felt after stepping out of one ski and penetrating into facets with boot.
Cracking in wind loaded areas
Weather
Snowing, heavy at times 2+ inches fell during 4 hrs in the field.
Winds were easterly 20 mph and gusting into the 40s. Definitely moving snow around.
Temperatures: 32F at parking lot, 20s at Treeline
Snow surface
Soft new snow 16-20"
Stiffer where wind effected, scoured in spots
Heavier below 1500'
Snowpack
16-20" of new on surface hoar and/or facets. Hand pits were failing on isolation in wind effected spots and compression tests failed at 4-6 taps. Bottomless conditions below treeline sinking into faceted snow.
The gulley is filled in Tincan skin track!
Stormy conditions
Cracking along wind loaded pocket
Snake Pit slab
Snake Pit slab #2
Bottomless snowpack