Columnar Peak avalanche cycle

Quick report

freeman.david.j · Jan 6, 2024 · Manning

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Avalanche

Run Length
400
Slab Width
50
Trigger Type
natural
Avalanche Size
1.5
Slab Thickness
40
Start Zone Aspect
E
Vegetation Cover
openSlope
Start Zone Incline
40
Avalanche Character
stormSlab
Number Of Avalanches
2-5
Start Zone Elevation
1790
Runout Zone Elevation
1620
Avalanche Observation
12to24hrsAgo
Start Zone Elevation Band
tln
Avalanche Occurrence Datetime
2024-01-06T10:00:00.000Z

Evidence of natural avalanche cycle off the east slopes off subpeaks south of Columnar Pk. Multiple fresh natural avalanches, sz 1 to 1.5, from the Friday snowfall. We could identify a high angle start zone in all cases. Avalanche debris was small and paths were relatively narrow, consistent with minimal propagation and relatively shallow slide. We did not notice any other avalanche signs (no whumping or shooting cracks) throughout the day.