Avalanche Forecast
Issued: Mar 29th, 2023 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Deep Persistent Slabs.
mbender,
Avalanche Canada
It will likely still be warm with a mix of sun and cloud on Thursday. If the sun stays out for an extended time think about an increase in the likelihood of loose wet avalanches running in steep terrain facing the sun.
Summary
Confidence
High
Avalanche Summary
No significant avalanches were reported in the past few days.
Snowpack Summary
There is likely a thin crust on steep slopes facing the sun right up into the alpine. Any recent new snow has been redistributed by northeast winds. On high north-facing terrain wind slabs may sit over facets and surface hoar.
The mid-snowpack is generally strong. There continues to be a weak layer of facets from November at the base of the snowpack. This layer remains a concern in rocky, shallow, or thin to thick snowpack areas at treeline and above.
Weather Summary
Wednesday Night
Mostly cloudy. Light northeast wind. High of -9 °C at treeline. Freezing level at valley bottom.
Thursday
Mostly cloudy with sunny breaks. Light northeast wind. High of -1 °C at treeline. Freezing level at 1700m.
Friday
Mostly cloudy with scattered flurries. Light to moderate southwest wind. High of -4 °C at treeline. Freezing level 1400m.
Saturday
Mostly cloudy with flurries. Light southwest wind. High of -4 °C at treeline. Freezing level 1300m.
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.
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. 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 30th, 2023 4:00PM
