Avalanche Forecast
Issued: Dec 3rd, 2014 4:00PM
The alpine rating is Deep Persistent Slabs and Wind Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeHuman 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
Summary
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
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
Expected Size
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
Expected Size
Valid until: Dec 4th, 2014 4:00PM