Natural Activity on Collembola

Quick report

Zarch · Nov 25, 2023 · North 40

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Observation photo 1Observation photo 2

Avalanche

Run Length
50
Slab Width
25
Trigger Type
natural
Wind Exposure
crossLoadedSlope
Avalanche Size
1.5
Slab Thickness
100
Start Zone Aspect
S
Vegetation Cover
openSlope
Start Zone Incline
40
Avalanche Character
persistentSlab
Crust Near Weak Layer
1
Number Of Avalanches
1
Start Zone Elevation
2200
Runout Zone Elevation
2100
Weak Layer Burial Date
2023-10-27
Avalanche Observation
12hrsAgo
Weak Layer Crystal Type
facets
Start Zone Elevation Band
tln
Avalanche Occurrence Datetime
2023-11-24T17:00:00.000Z

Point release just below ridgeline ran on storm snow before stepping down to persistent weak layer. Unclear whether the failure plane was on the Nov. 10th MFcr or Oct 27th basal facet layer (though given the rock exposure on the bed surface, basal facets seem like the culprit)