McCrae solar aspects
Avalanchepeterpan · Dec 11, 2020 · Central Selkirk
Quick report
- Weather
- sunny, warm
- Ride Type
- openTrees, alpineSlopes, mellowSlopes, sunnySlopes
- Stayed Away
- convexSlopes, steepSlopes
- Riding Quality
- ok
- Snow Conditions
- powder, crusty
- Avalanche Conditions
- avalancheConditionSound
late report but still relevant. See more comments in the snowpack section.
Snowpack
- Depth
- 145
- Obs Type
- point
- Site Aspect
- S
- Test Fracture
- unevenBreak
- Site Elevation
- 2050
- Ski Penetration
- 15
- Test Initiation
- veryEasy
- Foot Penetration
- 30
- Test Failure Depth
- 13
- Site Elevation Band
- tln
- Surface Conditions
- surfaceHoar
- Whumpfing Observed
- 1
- Test Failure Layer Crystal Types
- surfaceHoar
sorry for late submission. CTE5 SC down 13 on partly decomposed SH below 3cm P crust, CTM20 down 80 on November 5th crust facets. The whumpfing observed was localized to a 2000-2050m, 20-25deg gently rolling terrain. localized sun crust on steeper solar open features between 1700-1950. Widespread SH above 1800m. 5-10cm storm snow on F crust up to 2000m. This widespread Dec 11 SH at and above treeline will be something to keep in mind with this ongoing storm cycle.
Avalanche
- Run Length
- 200
- Slab Width
- 60
- Trigger Type
- natural
- Wind Exposure
- windwardSlope
- Avalanche Size
- 2
- Slab Thickness
- 120
- Start Zone Aspect
- S
- Vegetation Cover
- openSlope
- Start Zone Incline
- 35
- Avalanche Character
- deepPersistentSlab
- Number Of Avalanches
- 1
- Start Zone Elevation
- 2150
- Runout Zone Elevation
- 2000
- Avalanche Observation
- 24to48hrsAgo
- Start Zone Elevation Band
- alp
- Avalanche Occurrence Datetime
- 2020-12-09T15:16:00
We couldn't get close enough to see what was the ground cover but we suspect smooth grass cover. Of note the avalanche started on steep convex roll and triggered a glide crack to ground that extended about 200m further to the skiers left side. I suspect that portion didn't slide because of being on more supported concave slope position. We usually see this kind of slides more commonly in the spring.. we stayed on lower angle supported slopes that day.