It's possible to remote-trigger very large avalanches from long distances away. Stick to simple terrain and avoid overhead slopes.
Check out this MIN report showcasing a recent avalanche.
Reactive wind slabs may exist. North through east slopes are very loaded with deep deposits of snow but changing winds could also load south facing slopes this weekend.
A reactive weak layer of facets over a crust is buried 60 to 100 cm deep. Remote triggering from afar is possible and it will produce large and destructive avalanches.
No new reports on Friday.
On Wednesday, a snowmobile remotely triggered a large (size 3) persistent slab avalanche from 100 m away near Bryant Lake. It was triggered from flat terrain at the col on an ENE aspect at 1500 m. The crown depth was 1 to 2 m, the width was 400 m and it ran 400 m down slope. It slid on the December facet/ crust interface.
Heads up through the weekend, human-triggered avalanches remain likely.
By Thursday, there was up to 40 cm of new snow. Previous strong southwest winds have redistributed the storm snow onto leeward slopes, building thicker wind slabs. The recent snow combined with changing winds may start to load south-facing slopes.
A persistent weak layer composed of facets overlying a crust is buried 50 to 100 cm deep and may be reactive with the new load from snow and wind.
Total snow depths are around 160 to 190 cm at treeline.
Friday Night
Clear. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -15 °C.
Saturday
Mix of sun and cloud with isolated flurries. 10 to 30 km/h northwest ridgetop wind. Treeline temperature -12 °C.
Sunday
Mix of sun and cloud. 30 to 45 km/h southwest ridgetop wind. Treeline temperature -10°C.
Monday
Cloudy with sunny periods and isolated flurries. 35 gusting to 75 km/h southwest ridgetop wind. Treeline temperature -5.
More details can be found in the Mountain Weather Forecast.
