Avalanche Forecast
Issued: Jan 29th, 2021 4:35PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Persistent Slabs.
Benjamin Firth,
New snow and increased winds expected Saturday evening and Sunday. The more snow, the greater the hazard
Summary
Weather Forecast
Sat: Cloudy with sunny periods and isolated flurries. Precipitation: Trace. Alpine temperature: High -9 °C. Ridge wind southwest: 15 km/h gusting to 40 km/h.
Sun: Flurries. Accumulation: 12 cm. Alpine temperature: Low -9 °C, High -6 °C. Ridge wind southwest: 15-35 km/h. Freezing level: 1500 metres.
Snowpack Summary
Alpine is either stripped of snow completely or offers a variety of wind affected surfaces. Surface faceting continues with cooler temperatures. Strong mid-pack overlies generally supportive basal layers. Decomposing surface hoar is found down 40cm to 80cm in isolated sheltered locations, in the very southern parts of the park.
Avalanche Summary
Field team reports no new avalanche activity observed.
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Confidence
Intensity of incoming weather systems is uncertain on Sunday
Problems
Persistent Slabs
Low probability, high consequence problem at the moment. Keep an eye out for sporadic weak layers within the snowpack. These layers may be present in a form of buried surface hoar, facet interfaces, or sun crust.
- Be aware of thin areas that may propogate to deeper instabilites.
- Dig down to find and test weak layers before committing to a line.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Jan 30th, 2021 4:00PM
