Avalanche Forecast
Issued: Apr 2nd, 2017 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Persistent Slabs and Wind Slabs.
snow safety,
Avalanche Canada
Sun effect will dramatically change the avalanche conditions at lower elevations tomorrow.
Summary
Weather Forecast
Convective flurries tomorrow with periods of light rain at lower elevations and snow up high, Overnight temperatures will drop to below -10 as the low and climb to plus 5 as a high tomorrow. Any sun affect will dramatically increase temperatures quickly.
Snowpack Summary
10-20cm of new plus 20cm of recent snow sits on a well settled mid-pack. In shallow areas (Field ice climbs) the base is weak and facetted. Shears persist on this facet interface. In deeper areas (Little Yoho Valley), the deep weak layers are less of a concern. Expect buried sun crust on solar aspects, and a melt freeze crust BTL,
Avalanche Summary
No direct observations were made in the Little Yoho Region today,
Confidence
Problems
Persistent Slabs
The snowpack is stabilizing after the last avalanche cycle, and now we are left with a low probability, high consequence problem. Natural avalanches have mostly ceased, but triggering is still possible - especially from large loads like cornices.
- Be aware of thin areas that may propogate to deeper instabilites.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Wind Slabs
Fragile new cornice growth and small fresh windslabs have formed with the recent storm.
- If triggered the wind slabs may step down to deeper layers resulting in large avalanches.
- Pay attention to overhead hazards like cornices which could easily trigger persistent slabs.
Aspects: North, North East, East, South East.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Apr 3rd, 2017 4:00PM
