**NEW** Area closures for avalanche control are in effect intermittently from November to May. If not described in the bulletin headline below, the area is open. For more information and maps, click the link below under "Resources".
Recent winds have produced fresh wind-slabs in the alpine and some tree-line locations.
This problem represents both the Dec. 2nd crust/ facet layer (treeline and below) and layers of faceted snow that were formed during the late December cold snap (all elevations). If triggered, either layer will result in large avalanches.
Deep persistent slabs are best managed by:
Cornices are best managed by:
A ridge of high pressure will move into the area on Friday. Scattered clouds and light snow are forecasted. There is potential for high freezing levels and lots of sunshine on the weekend.
Recent wind and new snow have created fresh wind slabs in the alpine and some tree-line areas. New snow and windslabs overlie facets in many places resulting in wide propagations in recent avalanches. The Dec. 2 crust and facets are generally 60-90cm deep and producing variable . Some thin snowpack areas have lingering basal depth hoar and facets.
Sunshine reported fresh windslabs in the alpine that were easily triggered by skiers. Avalanche control in Yoho Tuesday produced slabs with every shot. Most were failing on a windslab or facet layer 40-60cm deep and then entraining facets in the track. One stepped down to the November facets ~ 180 cm deep.