Hummingbird Pass and Selous Pass

Avalanche

loriannedonald · Jan 3, 2021 · Ymir

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Observation photo 1

Quick report

Weather
foggy, cloudy, sunny
Ride Type
denseTrees, mellowSlopes
Stayed Away
openTrees, alpineSlopes
Riding Quality
good
Snow Conditions
windAffected, powder
Avalanche Conditions
avalancheConditionSlab

Snowpack

Depth
180
Obs Type
point
Site Aspect
E
Test Fracture
sudden
Site Elevation
1800
Test Initiation
hard
Foot Penetration
80
Test Failure Depth
122
Site Elevation Band
btl
Surface Conditions
newSnow
Test Failure Layer Crystal Types
crust, surfaceHoar

ECTN22 CTHard23 - sudden collapse down 122 cm on rounded out surface hoar, size 4 crystals, 4 cm up from Dec 8th crust

Avalanche

Run Length
20
Slab Width
10
Trigger Type
natural
Avalanche Size
1.5
Slab Thickness
40
Start Zone Aspect
E
Vegetation Cover
sparseTrees
Avalanche Character
stormSlab
Number Of Avalanches
1
Avalanche Observation
12to24hrsAgo
Start Zone Elevation Band
btl
Avalanche Occurrence Datetime
2021-01-03T09:30:00