Avalanche Forecast

Moderate - Timing or intensity of solar radiation is uncertain

High pressure is the dominant feature for the foreseeable future. In the alpine, sunny conditions are expected for the next few days but most of the valleys will likely to be under valley fog. On Thursday, treeline temperatures will be around -5C with colder temperatures in the valleys. Alpine winds may be moderate from NE in the morning but should ease during the day. On Friday, a layer of above freezing air is expected to invade the alpine. By Saturday, temperatures could be a few degrees above zero from around 2000m to 3000m elevation. On both Friday and Saturday, alpine winds should be light and above the valley fog the conditions should be clear and sunny.

Several small loose dry avalanches, small soft slab avalanches, and cornice releases have been reported over the last couple of days. Progressive warming in the alpine with ongoing sunny conditions should result in ongoing loose natural avalanches from south-facing slopes and by the weekend may create slab properties within the recent storm snow.

20-40cm of low density snow overlies a generally strong snowpack. Some operators report surface hoar buried down about 10-15 cm. You may encounter wind slabs which are sensitive to the weight of a person near ridge tops. Recent storm snow may sluff in steep terrain, especially with a touch of sun. One operator near Kamloops is reporting a hard slab sitting on a layer of surface hoar buried down 30-50 cm. This appears to be an outlier, but I would take extra time to investigate the snowpack if you are in the far west of the region. The lower snowpack is reportedly well settled. The early December weak layer (about 80-150 cm down) is spotty in distribution, but where it does exist still gives hard, sudden results, meaning it is unlikely to be triggered, but could produce a very large avalanche.