Strong to extreme winds have stripped fetches in the alpine, and new wind slabs exist at treeline and above. These will begin to settle as the weekend progresses.
Melt freeze crusts and facets from early season snowfalls are lurking at the bottom of the snowpack. Windslabs have been stepping down to this layer, and it may be possible for a person to trigger an avalanche in the right (wrong?) spot.
Deep persistent slabs are best managed by:
Cornices are best managed by:
Friday: Cloudy with scattered flurries, up to 5cm of snow. Moderate NW to W winds, alpine high -7.
Saturday: Cloudy with sunny periods and isolated flurries. Light west winds, Alpine high -12.
Sunday: Cloudy with sunny periods and light to moderate westerly winds. Alpine high -12.
15-25cm previous storm snow coupled with strong to extreme west winds has formed new slabs in the alpine and treeline. A melt freeze crust facet combo formed at the start of the season sits at the bottom of the snowpack. Though unlikely to be triggered by people, it is not impossible and we have seen other avalanches stepping down to this layer.
No recent avalanche activity has been seen in the park, but recently we have seen windslabs stepping down to early season weak layers on east aspects in the alpine, and surrounding ski areas have been getting results to size 2 with explosives.