- Submitted by
- chartmetz
- Observations date
- Sunday, January 13, 2019 at 19:30
- Location
- 52.148320° N 117.091900° W
- Reporting on
- Snow conditions
%2F-117.0919%2C52.14832%2C8%2C0%2C0%2F1026x200%3Faccess_token%3Dpk.eyJ1IjoiYXZhbGFuY2hlY2FuYWRhIiwiYSI6ImNqd2dvZmUxdzE4ZWg0M2tkaXpuNG95aTQifQ.pBLM87fE3sIxRJqJT7Bf7g&w=1200&q=75 "Mt. Saskatchewan Valley")
Quick
Avalanche
Snowpack
Weather
Incident
Information
- Avalanche date/time
- Sunday, January 13, 2019 at 14:00
- Estimated occurrence time of avalanche
- More than 48 hours ago
- Number of avalanches in this report
- 1
- The size of avalanche
- 3
- Slab thickness
- 200cm
- Slab width
- 250m
- Run length
- 800m
- Avalanche Character
- Deep persistent slab
- Wind slab
- Trigger type
- Natural
- Trigger subtype
- Remote
- Start zone aspect
- SE
- Start zone elevation band
- Alpine
- Start zone elevation
- 2,800m
- Start zone incline
- 40°
- Runout zone elevation
- 2,400m
- Weak layer crystal type
- Depth hoar
- Wind exposure
- Cross-loaded slope
- Vegetation cover
- Open slope
Comments
Avalanche initiated immediately below the peak of 52.13961 N, -117.13123 W. What appears to be a slab running on an old snow surface sympathetically triggered a second avalanche which ran to ground. The debris ran quite far into very low angle terrain. Propagation on the sympathetic avalanche was impressive, with at least a 250 m crown, and the crowns of both avalanches were quite deep (estimated at 200 cm each). Avalanche debris was observed from about 1 km, making all measurements shown estimates. Three photos attached showing the start zones, track, and runout.
