- Submitted by
- chartmetz
- Observations date
- Tuesday, January 7, 2020 at 16:00
- Location
- 52.797130° N 117.748010° W
- Reporting on
- Snow conditions
%2F-117.74801%2C52.79713%2C8%2C0%2C0%2F1026x200%3Faccess_token%3Dpk.eyJ1IjoiYXZhbGFuY2hlY2FuYWRhIiwiYSI6ImNqd2dvZmUxdzE4ZWg0M2tkaXpuNG95aTQifQ.pBLM87fE3sIxRJqJT7Bf7g&w=1200&q=75 "Deep Avalanche across from WAD Valley")
Quick
Avalanche
Snowpack
Weather
Incident
Information
- Avalanche date/time
- Tuesday, January 7, 2020 at 09:00
- Estimated occurrence time of avalanche
- From 12 to 24 hours ago
- Number of avalanches in this report
- 1
- The size of avalanche
- 2
- Slab thickness
- 120cm
- Slab width
- 180m
- Run length
- 400m
- Avalanche Character
- Deep persistent slab
- Trigger type
- Natural
- Start zone aspect
- NE
- Start zone elevation band
- Alpine
- Start zone elevation
- 2,400m
- Start zone incline
- 30°
- Weak layer crystal type
- Depth hoar
- Facets
- Wind exposure
- Lee slope
- Vegetation cover
- Open slope
Comments
Observed this morning from WAD Valley. Crown appeared significant, conservatively estimated as shown above. Reviewing the terrain in Google Earth, this terrain feature appears to be an old rockslide with lots of surface topography. Some rocks were apparent in the bed surface, but it did not scrape completely to ground. Tentatively suspect that this ran on an early season crust buried near the base of the snowpack. We had limited visibility of the lower runout (below the prominent bench) but do not suspect that the slide made it into that lower runout.
