Avalanche Forecast
Issued: Mar 13th, 2024 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Persistent Slabs, Loose Wet and Wind Slabs.
BM,
Avalanche Canada
There is a significant warm up forecast for this weekend. It's likely that this will increase the reactivity of the persistent weak layer. Smaller wet loose avalanches are likely and could also trigger this layer. Continue to make conservative terrain choices!
Summary
Confidence
Avalanche Summary
A few natural windslabs to size 1.5 were observed on Tuesday.
Snowpack Summary
Earlier in the week, 20 cm of new snow and strong SW winds formed fresh windslabs in the alpine and at treeline. The Feb 3rd crust/facet persistent weak layer is buried 60-120 cm deep. Below this, the snowpack consists of a mixture of settled snow and crust/facet layers to ground. Snowpack depths between 80 - 250 cm.
Weather Summary
Thurs
A mix of sun and cloud with light westerly winds. Freezing level rising to 2100 m, alpine high of -4°C.
Fri
Sunny, light northerly winds. Alpine high of +3°C and freezing level rising to 2800 m.
Sat
Clear skies with light northeast winds. Alpine temperatures staying above 0°C with a high of +5°C. Freezing level remains around 2800 m.
For more info: Mountain Weather Forecast.
Terrain and Travel Advice
- The likelihood of deep persistent slab avalanches will increase with each day of warm weather.
- In times of uncertainty conservative terrain choices are our best defense.
Problems
Persistent Slabs
This layer is likely to become more reactive with rising freezing levels this weekend.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Loose Wet
This is likely to become reactive with the warm temperatures from Friday onwards. Small wet loose avalanches could trigger persistent weak layers and result in large avalanches.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Wind Slabs
If triggered, windslabs could step down to the deeper persistent layer and yield a large avalanche.
Aspects: North, North East, East, South East, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 16th, 2024 4:00PM
