Avalanche Forecast
Issued: Jan 15th, 2015 4:05PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Persistent Slabs.
Brian Webster,
Avalanche Canada
Beware of the prominent surface hoar layer which is down 40-50 cm. This layer is reactive to human triggering.
Summary
Weather Forecast
Mainly cloudy with isolated flurries through to Friday. Westerly flow with moderate to strong ridge top winds. Freezing levels at valley bottom.
Snowpack Summary
The main concern in the snowpack is the Dec 18 surface hoar layer down 40-50 cm. This layer is very prominent and is producing moderate test results. This layer remains prime for human triggering. Sun crust forming on steep solar aspects and new surface hoar forming in sheltered areas.
Avalanche Summary
No new avalanches observed or reported in last 48 hours.
Confidence
Problems
Persistent Slabs
A persistent weak layer of surface hoar/ crust/ facets lurks 50 cm's below the surface. This layer is most reactive at the treeline elevation where it is a surface hoar/ crust combination.
- Choose conservative lines and watch for clues of instability.
- Be aware of the potential for large, deep avalanches due to the presence of buried surface hoar.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Jan 16th, 2015 4:00PM
