Chak Peak Deep Slab

Avalanche

Craig Hartmetz · Apr 25, 2020 · Marmot

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Observation photo 1

Avalanche

Run Length
550
Slab Width
350
Trigger Type
natural
Wind Exposure
leeSlope
Avalanche Size
3
Start Zone Aspect
E
Vegetation Cover
openSlope
Start Zone Incline
40
Avalanche Character
deepPersistentSlab
Crust Near Weak Layer
1
Number Of Avalanches
1
Start Zone Elevation
2460
Runout Zone Elevation
2100
Avalanche Observation
24to48hrsAgo
Weak Layer Crystal Type
facets, depthHoar
Start Zone Elevation Band
alp
Avalanche Occurrence Datetime
2021-04-25T14:00:00.000Z

Large deep persistent avalanche, running to ground, observed on the ridge north of Chak Peak. I suspect that this was cornice triggered and failed on a late fall (November) rain crust PWL. Crown and debris looked rather crisp and recent.