Wind slabs and persistent slabs remain possible to trigger.
The best & safest riding is in shady, wind-sheltered areas in the trees.
Wind slabs may be triggerable on on a variety of aspects at upper elevations. Up to 10 cm of new snow on Monday may be forming fresh slabs. Seek out soft non-wind affected snow for the best and safest riding.
Persistent weak layers of crust/facets or surface hoar are buried in the upper 250 cm of the snowpack. Signs of instability may not be evident, and the only defence is choosing smaller, low-consequence terrain.
Over the last several days, a few natural and several skier-triggered wind and storm slabs up to size 2 occurred. This recent MIN describes unstable conditions near Rupert.
On Friday, explosives triggered a size 2.5 persistent slab out of a north-facing treeline feature.
A fatal avalanche accident that failed on a deeply buried persistent weak layer occurred on March 22. More details here.
Strong winds from variable directions left slabs and pressed surfaces in open and exposed terrain at upper elevations. Sun-affected slopes likely have a new crust on the surface.
2 to 10 cm of new snow is in the forecast for Monday. This will add to the 20 to 60 cm of older settling storm snow, which sits on a crust on most aspects, and hard wind-pressed surfaces on shaded alpine slopes.
Several persistent weak layers of crust/facets or surface hoar are buried up to 250 cm deep in the snowpack. While triggering these layers is trending toward unlikely, they present a low-probability, high-consequence problem.
Sunday Night
Partly cloudy. 0 to 3 cm of snow. 20 km/h west ridgetop wind. Treeline temperature -9 °C.
Monday
Mostly cloudy. 2 to 10 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -8 °C.
Tuesday
Mostly cloudy. 2 to 5 cm of snow. 30 km/h south ridgetop wind. Treeline temperature -6 °C.
Wednesday
Mostly cloudy. 0 to 2 cm of snow. 30 km/h east ridgetop wind. Treeline temperature -4 °C.
More details can be found in the Mountain Weather Forecast.
