Low Danger is not No Danger

Quick report

keith · Dec 28, 2023 · Tutshi

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Observation photo 1Observation photo 2Observation photo 3

Quick report

Weather
cloudy
Ride Type
alpineSlopes, convexSlopes, openTrees, steepSlopes
Riding Quality
good
Snow Conditions
crusty, powder
Avalanche Conditions
avalancheConditionSlab

Avalanche

Run Length
150
Slab Width
30
Trigger Type
skier
Avalanche Size
1.5
Slab Thickness
40
Trigger Sub Type
accidental
Start Zone Aspect
N
Vegetation Cover
sparseTrees
Start Zone Incline
40
Avalanche Character
persistentSlab
Crust Near Weak Layer
1
Number Of Avalanches
1
Start Zone Elevation
2150
Runout Zone Elevation
2120
Weak Layer Burial Date
2023-12-06
Avalanche Observation
12hrsAgo
Start Zone Elevation Band
tln
Avalanche Occurrence Datetime
2023-12-29T03:40:00.000Z

Failure plane was the top of the Dec 06 rain crust (10cm thick). Though the debris ran to the bottom of the slope, it is suspected that the primary slab release was about 40m long. This slab scrubbed surface snow during its descent to the runout. No involvement. Slab released just below the skier's tracks. Associated video made for State of the Snowpack and Kootenay Avalanche Courses YouTube Channel: https://www.youtube.com/channel/UCTMfxxWAPxAO0YNzwmS1SmA