Avalanche Forecast
Issued: Jan 5th, 2013 9:16AM
The alpine rating is Storm Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Fair - Intensity of incoming weather is uncertain
Weather Forecast
Sunday: 5-10 cm new snow with generally light southeasterly winds sometimes gusting to 40 km/h. Treeline temperatures around -5C. Monday: 5-10 cm new snow with moderate to strong southeasterly winds gusting to 50 km/h. Treeline temperatures around -5C. Tuesday: 10-20 cm new snow most likely arriving later on in the day. Mostly light winds during the day, increasing later on. Freezing level rising to 1100 m in the afternoon. Note: the current weather pattern is not well defined by weather models. There is the possibility for significant variations from the above best estimates.
Avalanche Summary
No recent avalanches have been reported. Cornice chunks falling onto slopes have not triggered slabs.
Snowpack Summary
Incoming snow may not bond well to existing snow surfaces including surface hoar (up to 20 mm in size), facets, hard wind slabs or a sun crust. Storm slab problems may develop very quickly once it begins snowing. Recent SE winds have formed new wind slabs at alpine and treeline elevations, while older wind slabs appear generally well settled. No significant shears have been observed recently in the top or mid snowpack layers. Near the base of the snowpack, a crust/facet layer exists which is now unlikely to be triggered, except perhaps by heavy triggers in steep, shallow, rocky terrain where more facetting has taken place.
Problems
Storm Slabs
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Jan 6th, 2013 2:00PM