Avalanche Forecast
Issued: Mar 4th, 2012 9:00AM
The alpine rating is Wind Slabs and Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Good
Weather Forecast
Moderate to strong southwest winds and another 3-5 cm of new snow are expected by Monday morning. Continued unsettled weather is forecast for Monday bringing some flurries during the day. A small ridge of high pressure may provide some clearing skies during the night or early Tuesday morning with building northwest winds. Snow should start during the day Tuesday as winds continue to build and veer towards the west. Periods of moderate precipitation are forecast overnight resulting in about 5-10 cm of new snow with a freezing level of about 500 metres. The winds should calm and clock back to the northwest on Wednesday as a weak ridge passes through the region before the next Pacific frontal system approaches.
Avalanche Summary
No new avalanches have been reported from the region.
Snowpack Summary
Moderate southwest winds transported the 3-5 cm of new snow that we have received over the past two days into thin new windslabs at ridgetops. Currently, up to 60cm of snow sits over the mid February interface. This interface is variable, it consists of a strong melt freeze crust below 1000m, above 1000 m exists facets, surface hoar (in more sheltered areas), sun crust or wind press. The surface hoar is not widespread but is responsible for much of the larger avalanches that occurred earlier this week. This layer should be on your radar, as it may be susceptible to rider triggers.
Problems
Wind Slabs
Aspects: North, North East, East, South East, South.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Persistent Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 5th, 2012 8:00AM