- Submitted by
- Eddy Van Der Kloot
- Observations date
- Friday, December 11, 2020 at 19:04
- Location
- 49.387466° N 122.940820° W
- Reporting on
- Snow conditions
/-122.94081969321763,49.38746640945982,8,0,0/1026x200?access_token=pk.eyJ1IjoiYXZhbGFuY2hlY2FuYWRhIiwiYSI6ImNqd2dvZmUxdzE4ZWg0M2tkaXpuNG95aTQifQ.pBLM87fE3sIxRJqJT7Bf7g)
Quick
Avalanche
Snowpack
Weather
Incident
Information
- Avalanche date/time
- Friday, December 11, 2020 at 10:59
- Estimated occurrence time of avalanche
- Less than 12 hours ago
- Number of avalanches in this report
- 11 to 50
- The size of avalanche
- 1.5
- Slab thickness
- 20cm
- Slab width
- 40m
- Run length
- 20m
- Avalanche Character
- Storm slab
- Trigger type
- Skier
- Trigger subtype
- Remote
- Remote trigger distance
- 30m
- Start zone elevation band
- Treeline
- Start zone elevation
- 1,350m
- Start zone incline
- 45°
- Weak layer crystal type
- Storm snow
- Crust near weak layer
- Yes
- Vegetation cover
- Open slope
Comments
Remote triggered 20 or so small (sz1-1.5) on convexities near Pump Peak. The largest propagated about 30m, with a crown ranging from 15-20+ cms. The new storm snow has not bonded well to the MF crust, with hand shears resulting in an easy planar fracture at the interface between the storm snow and the melt freeze crust. Most of these slides appeared to occur on more northerly aspects. Another party that went up the south face of the peak reported that they didn't see avalanche activity there (visibility was too poor for us to verify) - perhaps without wind loading southerlies have not yet reached threshold levels. It was snowing hard (S3) through the morning and when we left, so this may change soon.