| Trigger | Natural | Remote Trigger | Unknown |
| Avalanche Type | Soft Slab | Aspect | West Northwest |
| Elevation | 3400ft | Slope Angle | unknown |
| Crown Depth | unknown | Width | 80ft |
| Vertical Run | 175ft |
Avalanche: Chugach State Park
Location: WSW facing 2000' - 3500'
up through sparse spruce and cottonwoods to alpine following subtle ribs and benchs
Avalanche Details
shallow wind slab release overnight
Obvious signs of instability
| Recent Avalanches? | Yes |
| Collapsing (Whumphing)? | Yes |
| Cracking (Shooting cracks)? | No |
Observer Comments
recent wind slab avalanche, collapse under 4th skier in skin track, active wind loading & some new snow. Very poor structure
ski penetration = 5-15cm, boot pen = 90-100cm;
HS 130cm, 24* SA, West ~2500' elev.; RB2 WB Q1 in 3-4mm facets under MF crust @ 98 cm
Weather
SSE wind 10-15G30mph. overcast, low to mid-20*s
Snow surface
windboard, recent wind transported snow, small sastrugi, suncrust and settled powder
Snowpack
an upper MF crust on solar aspects either at the surface or under 1-3" new snow over facets over older 5cm thick MF crust over nearly bottomless facets
percolation column in well developed facets