Access Couloir Avalanche Mountain Avalanche

Quick report

pizzaguy · Feb 5, 2024 · Little Yoho

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Observation photo 1Observation photo 2

Quick report

Weather
cloudy, cold, sunny
Avalanche Conditions
avalancheConditionSlab, avalancheConditionSound

Whumpfing only on propagation of avalanche. Performed a few sheer tests throughout ascending and discovered no planar or isolated slabs. The fracture occurred on a shallower snowpack near ridge top (less than 10m).

Avalanche

Run Length
260
Slab Width
20
Trigger Type
skier
Wind Exposure
leeSlope
Avalanche Size
3
Slab Thickness
54
Trigger Sub Type
accidental
Start Zone Aspect
S
Trigger Distance
0
Vegetation Cover
openSlope
Start Zone Incline
37
Avalanche Character
deepPersistentSlab, windSlab
Crust Near Weak Layer
1
Number Of Avalanches
1
Start Zone Elevation
2590
Runout Zone Elevation
2328
Avalanche Observation
12hrsAgo
Weak Layer Crystal Type
surfaceHoar
Start Zone Elevation Band
alp
Avalanche Occurrence Datetime
2024-02-05T20:15:00.000Z

Party traveled very tightly together ascending the couloir to mitigate any momentum from prospective moving snow hitting last partner. Everyone safely arrested as the slab broke at top member's piolet.