Avalanche Forecast
Issued: Mar 24th, 2023 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Deep Persistent Slabs.
trettie,
Avalanche Canada
Continue to practice good group management, High mark or ski steep terrain one at a time and minimize time below cornices.
Summary
Confidence
Avalanche Summary
No significant avalanches were reported on Thursday.
Snowpack Summary
A crust exists on or just below the surface at lower elevations and on all solar slopes. On higher north facing terrain facets and surface hoar can be found on or near the surface.
Check out this MIN from our field team.
The mid-snowpack is generally strong but the lower snowpack is a different story..The November facets are still prominent at the base of the snowpack. They are showing signs of improving but this layer remains a significant concern in rocky, shallow, or thin to thick snowpack areas at treeline and above.
Weather Summary
Friday Night
Increasing cloud with flurries bringing up to 5 cm of new snow. Light westerly winds and a low of -6°C at 1800 m.
Saturday
Mostly cloudy with the possibility of convective flurries bringing up to 5 cm of new snow. Light westerly winds and a high of -2°C at 1800 m. Freezing level rising to 1400 m.
Sunday
A mix of sun and cloud with the possibility of flurries bringing trace amounts of new snow. Light northeast winds and a high of -2°C at 1800 m. Freezing level rising to 1400 m.
Monday
Mostly clear with no new snow expected. Light westerly winds and a high of -3°C at 1800 m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Avoid sun exposed slopes when the solar radiation is strong, especially if snow is moist or wet
- In areas where deep persistent slabs may exist, avoid shallow or variable depth snowpacks and unsupported terrain features.
- Minimize your exposure time below cornices.
Problems
Deep Persistent Slabs
A weak layer of facets exists near the base of the snowpack. The likelihood of human triggering is low given the layer's depth, but large triggers such as cornice failures or smaller avalanches in motion have the potential to produce very large avalanches with surprisingly wide propagation. Suspect terrain for human triggering includes steep, shallow, and rocky terrain where the snowpack transitions from thin to thick.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 25th, 2023 4:00PM
