Avalanche Forecast
Regions: Little Yoho.
Human triggered avalanches are likely due to the instability of the recent storm snow over the Nov. crust/facets. This will not change in the near future. SH
Weather Forecast
We are on a warming trend for Thursday with highs in the -5 to -10 cm range. Expect light to Moderate SW winds over the forecast period, and 5-10cm Friday and Saturday.
Snowpack Summary
55cm of storm snow overlie a crust (Nov 6), which is only 15cm above the ground. For the most part the snowpack lacks cohesion and forecasters were breaking through on skis to the ground. Consistent whumphing below treeline.
Avalanche Summary
No avalanche activity was observed or reported in the Little Yoho region today.
Confidence
Due to the quality of field observations on Wednesday
Avalanche Problems
Deep Persistent Slabs
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. Watch for remote triggers.
- Watch for whumpfing, hollow sounds, and shooting cracks.
- Use conservative route selection, choose moderate angled and supported terrain with low consequence.
Aspects: All aspects.
Elevations: All elevations.
Likelihood: Likely
Expected Size: 2 - 3
Wind Slabs
The wind affect will be encountered above treeline and above in wind exposed terrain.
- Watch for whumpfing, hollow sounds, and shooting cracks.
- Be careful with wind loaded pockets while approaching and climbing ice routes.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood: Possible - Likely
Expected Size: 2 - 2