Purcells

Fair - Due to the number of field observations

The strong arctic high will gradually start to break down. Weak frontal waves will cross the interior regions, bringing some cloud cover and light snowfall amounts.Monday: Mix of sun and cloud. Alpine temperatures show a high of -14. Ridgetop winds will blow moderate from the West. Tuesday: Cloudy with some sunny periods. Alpine temperatures show a high of -13. Ridgetop winds will blow light from the West. Snow amounts near 5 cm.Wednesday: Cloudy with sunny periods. Alpine temperatures show a high of -11. Ridgetop winds will blow light from the West. Snow amounts 3-5 cm.

In the Northern part of the region a natural wind slab, size 1 was reported on a NW aspect. Additionally numerous size 1 loose dry avalanches from NW aspects were easily rider triggered. Loose dry avalanches are small, but they may be consequential if you're caught or pushed into depressions or off cliffs. Watch your sluff, and deek out to the side to escape.

Strong NE winds after the storm have caused reverse loading and wind slab formation on SE through W aspects on open slopes and behind terrain features.Widespread surface hoar development and surface facetting exists. Snowpack depths at treeline vary across the region, averaging 70-110 cm. In the Southern part of the region there is 40-70cm of new snow over the late-November surface hoar/ crust/ facet interface that may be reactive, especially in sheltered northerly aspects where the surface hoar was better preserved.In the Northern part of the region the lower/mid snowpack is fundamentally weak, composed of an early season crust (more prevalent on north aspects) and weak faceted crystals above and below the crust. This persistent slab may be stubborn to trigger, but if triggered have high consequences.