| Trigger | Skier | Remote Trigger | Yes |
| Avalanche Type | Soft Slab | Aspect | North Northeast |
| Elevation | unknown | Slope Angle | unknown |
| Crown Depth | 12in | Width | unknown |
| Vertical Run | unknown |
Avalanche: Hatcher Pass
Location: Stairstep
standard up route. new snow to 20cms. snow still in trees down low. obvious wind(SE) texture in alpine
Topped out ~3500′
Avalanche Details
multiple remote triggers from 10-25m away. fresh soft leeward storm slabs usually on small unsupported slopes. one step down to basal facets in an extremely shallow area (previously scoured?)
See low light picture
Obvious signs of instability
| Recent Avalanches? | No |
| Collapsing (Whumphing)? | Yes |
| Cracking (Shooting cracks)? | No |
Observer Comments
Recent snow and wind, obvious wind texture up high, old slides on Punk Spines & elsewhere
collapsing in creek bed but no other collapses until near top out in the alpine. 2 collapses ;~ 3m, ~7m prior to de-skinning
1 audible collapse while down skiing coincident w 2nd remote
Weather
clear calm 20*F at road 1030h; slight 0-2mph ENE breeze in alpine after 1230h, 16*F; high clouds from SSW coming in by 1500h
Snow surface
soft new snow w/ increasing texture and wind crust depending on aspect w/ increasing elevation
Snowpack
basal facets topped by clearish MF crust w/ small facets above then faceting rounds w/ occasional wind thickened layers topped by 15-20cm low density pow
hand shears were resistant, no formal pits
triggered by 1st skier ~ 15m away (out of sight). Note cracking
alos note tundra