Avalanche Forecast

Moderate -

Saturday: Cloudy with scattered flurries bringing 2-5 cm of new snow, continuing overnight. Light to moderate southeast winds. Alpine high temperatures around -5.Sunday: Mainly cloudy with continuing isolated flurries and a trace of new snow. Light to moderate east winds. Alpine high temperatures around -7.Monday: Cloudy with flurries bringing approximately 5 cm of new snow. Moderate south winds. Alpine high temperatures to about -7.

Reports from Thursday included observations of several storm slabs releasing naturally, remotely (from a distance), and with skier traffic. Avalanche sizes ranged from Size 1-2. The remote release was noted to have slid on lower angle terrain over a surface hoar on crust 'combo' left behind by the recent inversion. Ski cutting in the Shames area also produced loose wet releases to Size 1 in steep terrain. Looking forward, the storm slabs that formed over Thursday may remain reactive to human triggering on Friday. Sheltered openings at mid elevations are an emerging concern with reports indicating they may harbour a touchy layer of surface hoar beneath the new snow.

Snowfall over the mid-week brought about 30 cm of new snow to the region. Northern parts of the region saw about half this amount. The new snow has buried a mix of old wind slabs and temperature crusts left over from the weekend. More isolated surface hoar has been observed under the new snow at mid elevations that experienced cloud cover during recent inversion conditions. Storm slabs have been particularly reactive where this surface hoar exists.Professionals have been monitoring a few layers in the upper snowpack, including crusts and surface hoar layers buried 40-80 cm below the surface. Although these layers have been reactive in recent snowpack tests, they have not produced avalanches lately. The lower snowpack is generally strong, with the exception of areas around Stewart and further north where a basal crust and facets exist.