Deep, but reactive!
Quick reportrobin.mazenc · Mar 20, 2025 · Ymir
Quick report
- Weather
- stormy, cloudy
- Ride Type
- mellowSlopes, denseTrees, openTrees
- Stayed Away
- alpineSlopes
- Riding Quality
- amazing
- Snow Conditions
- deepPowder
- Avalanche Conditions
- avalancheConditionSnow
Fantastic riding in the Whitewater backcountry. We kept it mellow, riding open tree hallways and (trying) to stay away from steeper convexities. One rider went for a short ride after popping a side 1 storm slab (see incident).
Weather
- Wind Speed
- windSpeedModerate
- Blowing Snow
- light
- Sky Condition
- brokenClouds
- Snowfall Rate
- 2
- New Snow24 Hours
- 20
- Temperature Trend
- steady
- Precipitation Type
- snow
Snowpack
- Depth
- 260
- Obs Type
- point
- Site Aspect
- NW
- Test Fracture
- sudden
- Site Elevation
- 2030
- Test Initiation
- easy
- Site Elevation Band
- tln
- Surface Conditions
- newSnow
Dug a quick pit at 2030m ish. Two notable results. One easy (6) result on the recent storm snow, about 20cm down. A second moderate (mod 2/12) result, 45cm down. Both were sudden plannar.
Avalanche
- Run Length
- 30
- Slab Width
- 5
- Trigger Type
- skier
- Wind Exposure
- noWindExposure
- Avalanche Size
- 1
- Slab Thickness
- 25
- Trigger Sub Type
- accidental
- Start Zone Aspect
- NW
- Vegetation Cover
- sparseTrees
- Start Zone Incline
- 40
- Avalanche Character
- stormSlab
- Number Of Avalanches
- 1
- Start Zone Elevation
- 1850
- Runout Zone Elevation
- 1820
- Avalanche Observation
- 12hrsAgo
- Weak Layer Crystal Type
- stormSnow
- Start Zone Elevation Band
- btl
- Avalanche Occurrence Datetime
- 2025-03-20T10:13:00.000Z
Incident
- Terrain Trap
- trees
- Group Activity
- skiing
- Snow Depth Trigger Point
- deep
- Terrain Shape Trigger Point
- convex
Rider cut above a steeper convexity in open trees and triggered a size one storm slab (see photos). Rider rode the slide on their butt for a few meters before stopping, with no consequences. Slide ran for about 30m. Crown was about 20cm/30cm deep.



