Lyell Creek Area
AvalancheDave C ยท Jan 17, 2022
Avalanche
- Run Length
- 3000
- Slab Width
- 300
- Trigger Type
- natural
- Avalanche Size
- 3
- Slab Thickness
- 100
- Trigger Sub Type
- remote
- Start Zone Aspect
- W, NW
- Trigger Distance
- 2000
- Vegetation Cover
- sparseTrees
- Start Zone Incline
- 35
- Avalanche Character
- windSlab, persistentSlab
- Crust Near Weak Layer
- 1
- Number Of Avalanches
- 6-10
- Start Zone Elevation
- 2300
- Runout Zone Elevation
- 1395
- Weak Layer Burial Date
- 2021-12-05
- Avalanche Observation
- 12hrsAgo
- Weak Layer Crystal Type
- facets
- Start Zone Elevation Band
- alp, tln
- Avalanche Occurrence Datetime
- 2022-01-18T01:00:00.000Z
Wide spread >3to 3.5 natural avy cycle starting with storm snow heavy loading (>35cm) moist snow, forming slabs as the day progressed. Crowns propagated down to Dec 5 layers. Long run distance on avalanches. Crossing skin tracks (guide set). Additional avalanches were observed from steep aspects and benches - visible crowns and avalanche debris travelled much farther than anticipated in all cases.