Purcells

Fair - Timing, track, or intensity of incoming weather is uncertain on Friday

The timing and intensity of the next frontal system (Friday/Saturday) is uncertain.Friday: Mainly cloudy, with moderate snow starting in the evening. Moderate to strong SW winds. Freezing level around 1300 m.Saturday: Overnight snowfall tapering off to a cool and unsettled flow with light to moderate snow. Strong SW winds easing. Freezing level around 1200 m.Sunday: Cold and unstable weather, with light snow. Freezing level around 1000 m.

Observations were very limited during Wednesday’s storm. Neighbouring regions experienced a natural avalanche cycle at treeline and alpine elevations to size 3.

10-40 cm recent storm snow and moderate to strong winds have created new storm slabs and wind slabs at alpine and treeline elevations. A surface hoar interface is now buried within the upper metre or so of the snowpack, mainly on high-elevation northerly aspects. It may be slowly gaining some strength, but these slopes should still be treated with suspicion. On other slopes, recent storm snow overlies a crust, with a variable bond. At lower elevations, rain-soaked snow will become strong once refrozen.