| Trigger | Foot Penetration | Remote Trigger | 0 |
| Avalanche Type | Soft Slab | Aspect | East Northeast |
| Elevation | 3500ft | Slope Angle | 26deg |
| Crown Depth | 24in | Width | 20ft |
| Vertical Run | unknown |
Avalanche: Chugach State Park
Location: Scree slope above Black Lake
From the Glen Alps trailhead we hiked up O’Malley gully, across the Ball Field, down onto Black Lake, and dropped into the Middle Fork Campbell creek drainage. We retraced this route on the way out.
Avalanche Details
A wind deposited feature was identified as likely unstable based on prior observations that day. The slide was triggered by walking/trenching into the feature at which point it released above the 'tester'. The resulting slide was larger than anticipated. The 'tester' was carried down the slope some 20-30'.
Obvious signs of instability
| Recent Avalanches? | No |
| Collapsing (Whumphing)? | Yes |
| Cracking (Shooting cracks)? | No |
Observer Comments
All wind deposited accumulations were collapsing when traversed.
Weather
High winds throughout the day, cloud cover, some precipitation as snow but little accumulation. Temps were warm, 28-32F.
Snow surface
Mostly scoured ground with pockets of wind slabs.
Snowpack
None
Slab Crown
Slide Debris