Avalanche Forecast
Issued: Mar 19th, 2020 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Loose Wet and Deep Persistent Slabs.
Darren vonk,
Parks Canada
Consecutive days of day time warming is taking its effect on the snow pack. Watch for prolonged periods of sun on solar aspects later in the day.
Summary
Weather Forecast
Tonight: Cloudy, Light West winds and no new precip.
Friday: Partially sunny with Light West winds High -5 freezing levels rising to 1600m
Saturday: Cloudy with isolated flurries, High -14 with moderate West winds
More detailed forecast at: Mountain weather forecast
Snowpack Summary
Snowpack continues to settle due to Diurnal conditions. Scoured from previous winds. Old hard slabs exists in the alpine and open tree line. More confidence in the southern snowpack. Cornices remain an overhead hazard,
The mornings can provide good travel on the melt freeze crust. By early afternoon the crust will start to break down.
Avalanche Summary
No new avalanche activity noted today.
Confidence
Problems
Loose Wet
This problem will increase with day time warming and solar input, Travel early when the snowpack is frozen on solar aspects, and avoid during the heat of the day.
- Minimize exposure to steep, sun exposed slopes when the solar radiation is strong.
- Pay attention to sluffing off cliffs and steep solar terrain, signs of a warming snowpack.
Aspects: South East, South, South West, West.
Elevations: Treeline, Below Treeline.
Likelihood
Expected Size
Deep Persistent Slabs
This problem will require a large trigger, thin spots or rapid day time warming.
- Avoid shallow snowpack areas where triggering is more likely.
- Be aware of the potential for full depth avalanches due to weak layers at the base of the snowpack.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Mar 20th, 2020 4:00PM
