- Submitted by
- michael_mariash
- Observations date
- Tuesday, February 9, 2021 at 19:30
- Location
- 51.280100° N 117.629400° W
- Reporting on
- Snow conditions
%2F-117.6294%2C51.2801%2C8%2C0%2C0%2F1026x200%3Faccess_token%3Dpk.eyJ1IjoiYXZhbGFuY2hlY2FuYWRhIiwiYSI6ImNqd2dvZmUxdzE4ZWg0M2tkaXpuNG95aTQifQ.pBLM87fE3sIxRJqJT7Bf7g&w=1200&q=75 "Glacier National Park")
Quick
Avalanche
Snowpack
Weather
Incident
Information
- Avalanche date/time
- Tuesday, February 9, 2021 at 11:30
- 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
- 30cm
- Slab width
- 30m
- Run length
- 193m
- Avalanche Character
- Wind slab
- Trigger type
- Skier
- Trigger subtype
- Accidental
- Remote trigger distance
- 0m
- Start zone aspect
- SE
- Start zone elevation band
- Alpine
- Start zone elevation
- 2,397m
- Start zone incline
- 36°
- Runout zone elevation
- 2,198m
- Crust near weak layer
- Yes
- Wind exposure
- Lee slope
- Vegetation cover
- Open slope
Comments
Old windslab heated up by the morning sun by 11:30am on a SE slope at 2400m.
Thin windslab on suncrust was heating up (moist snow -for real) in the sun on steep slope and wanting to propagate where unsupported.
We were boot packing narrow ridge and trying to avoid the deeper lee areas on our climbers right. Woops! Pretty exciting moment with fracture line at our feet and large powder cloud as the sidewall of a gully feature released.
Above 2500m we did not observe any further buried suncrusts or tickle any more windslabs.
