Avalanche Forecast

Moderate - Timing, track, or intensity of incoming weather system is uncertain

SATURDAY: Flurries with 5-20 cm of new snow, 30-50 km/h southwest winds, alpine temperatures -12.SUNDAY: Flurries with 5 cm of new snow, 20-40 km/h southwest winds, alpine temperatures -14.MONDAY: Sun and cloud, 20-30 km/h northwest winds, alpine temperatures -20.

On Thursday avalanche reports were limited to sluffing in steep terrain. Sustained wind and new snow will continue to build wind fresh and touchy winds slabs in exposed alpine and treeline terrain, especially in parts of the region that receive heavier snowfall.

The incoming storm is bringing light amounts of new snow with moderate winds. These conditions will continue to form wind slabs in exposed terrain. Southern parts of the region could see larger accumulations. The cold arctic air has left a complex surface for this new snow to fall onto. Changing wind directions over the past week have formed wind slabs on various aspects in exposed terrain. Small 2-3 mm surface hoar has been reported throughout the region in sheltered terrain and sits above loose faceted snow. This structure will likely become weak when loaded by new snow or wind. In the Duffey area, another small surface hoar layer can be found 20 cm deep and may become reactive with new loading. The mid-pack is generally well settled down to a widespread crust near the bottom of the snowpack. Recent reports suggest facets have formed above the crust. Although tests are indicating the layer is unreactive, it may be possible to trigger this layer in shallow rocky start zones. Total snowpack depths are 80-130 cm at treeline, and significantly less below treeline.