| Trigger | Skier | Remote Trigger | 0 |
| Avalanche Type | Soft Slab | Aspect | South |
| Elevation | 3200ft | Slope Angle | unknown |
| Crown Depth | unknown | Width | 100ft |
| Vertical Run | 300ft |
Avalanche: Hatcher Pass
Location: Peak 4068', South Aspect
In the Skeetawk parking area, a returning party alerted us to an avalanche they had triggered on the south aspect of Peak 4068 Tuesday afternoon. They estimated the slope angle to be around 30 degrees. Our observations from a few hundred yards away: D2 in size, failed to the ground, skier/snowboarder triggered, with an exit track about halfway down the runout.
Avalanche Details
Width/Length are very rough estimates from a distance. Trigger point appeared to be a terrain rollover (convexity). Most of the debris didn't slide all the way down to the valley floor, but at the crown the fracture went to the ground.
Obvious signs of instability
| Recent Avalanches? | No |
| Collapsing (Whumphing)? | Yes |
| Cracking (Shooting cracks)? | No |
Observer Comments
Whumphing on the flats approaching the uptrack.
Weather
Wet snow accumulation started Sunday (Feb. 11) night. Evidence of E/SE wind. Probably 1+ foot new snow at 3000' level. Temperature on Monday hovered around freezing, cooler on Tuesday.
Snow surface
Settled dense powder.
Snowpack
We were doing a quick lap after work and did no tests. We skied a lower angle slope to the east of the avalanche.
Human-triggered avalanche. South side of Peak 4068, 2/13/2018