Avalanche Forecast
Issued: Mar 7th, 2023 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
CG,
Avalanche Canada
Good conditions in the backcountry are seeing folks pushing into more aggressive lines. Watch that you don't tap into a shallow, faceted weak spot in the start zones. This could wake up the deep persistent weak layer that has been causing large, destructive avalanches in the surrounding neighbourhood.
Summary
Confidence
Moderate
Avalanche Summary
Several solar-triggered avalanches were observed yesterday from S faces (Single Bench, Lens, Cougar, Gunners paths), from sz 2-3.
A field team on Ross Pk today did not observe any avalanche activity.
Snowpack Summary
A crust is found on steep solar aspects, while wind slab exists in the alpine and exposed areas at tree line. 40-60cm of settled snow overlies a layer of decomposing stellars (large new snow crystals), a crust on solar aspects, or a thin layer of facets.
Although generally strong, the snowpack still sits upon a deep persistent weakness of rounding facets and a decomposed crust near the ground.
Weather Summary
Over the next few days, consistent weather conditions are expected: a mix of sun and cloud, Alpine high of -8*C by mid-afternoon with freezing levels around 1100m, and light winds from the east.
Terrain and Travel Advice
- Carefully evaluate steep lines for wind slabs.
- Cornices become weak with daytime heating or solar exposure.
Problems
Wind Slabs
Moderate winds have redistributed the recent storm snow, forming slabs in some locations. As you transition into Treeline and the Alpine, be mindful of changing conditions and signs of instability like cracking, whumpfing, or hollow-feeling snow below your feet.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 8th, 2023 4:00PM
