Avalanche Forecast
Issued: Jan 21st, 2012 9:52AM
The alpine rating is Wind Slabs and Storm Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Good - -1
Weather Forecast
Light snow is expected to continue overnight into Sunday morning. A weak ridge of high pressure is expected to dry out the area during the day on Sunday; you may even see some broken skies. Snowfall should start again on Sunday night combined with light easterly winds, resulting in about 10 -15 cm by Monday morning. Light flurries during the day on Monday are forecast to become moderate to heavy snowfall and strong southwest winds by Tuesday noon. The freezing level should be near valley bottom until Tuesday afternoon, when it is expected to rise to near 1000 metres.
Avalanche Summary
No new reports of avalanches observed.
Snowpack Summary
The new storm has brought about 15 cm to the Interior. The snowpack depth in the Smithers-Hankin area is about 250-275 cm at the upper extent of the treeline elevation band. Some surface facetting has been observed above treeline, and some surface hoar observed below treeline. Very strong northeast outflow winds have scoured north and east aspects and reduced previous cornice growth. The snow has been transported into stiff windslabs on south through west aspects. These windslabs should be stiff enough in most areas that the forecast southerly winds will not be able to re-distribute the snow. The mid-december crust has been observed to have bonded to the mid-pack in most areas, but may be found to have become facetted in areas with a shallow snowpack. The mid-pack is considered to be strong and well settled in most areas. No basal weak layers of concern have been reported.
Problems
Wind Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Storm Slabs
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Jan 22nd, 2012 8:00AM