A persistent weak layer remains a notable concern.
Sticking to low-consequence terrain is recommended.
The best & safest riding will be in wind-sheltered areas in the trees.
Wind slabs may remain triggerable on on a variety of aspects. Seek out soft non-wind affected snow at lower elevations for the best riding.
A persistent weak layer is buried 1 - 2 m. This is a low-probability, high-consequence problem. Signs of instability may not be obvious. The only defence is smaller, low-consequence terrain.
Over the last week, naturally triggered wind and persistent slab avalanches were reported. Some were triggered by falling cornices. See photos for more details.
Field observations have been very limited over the last few days. If you are heading to the backcountry, please submit your observations to the Mountain Information Network.
Variable winds left slabs and wind-pressed surfaces on most terrain at upper elevations. Sun-affected slopes likely have a new surface crust.
20 to 40 cm of soft snow from last week remains in wind-sheltered areas. Reports suggest this snow is bonding fairly well to previous surfaces.
A persistent weak layer made up of a crust and faceted crystals is buried 100–200 cm deep. Due to its depth, it is difficult to trigger and will likely only fail under specific conditions, such as with heavy loads or in spots with thinner snow coverage, adding a significant degree of uncertainty. This layer has been most reactive from treeline into the lower alpine, particularly on northerly through east-facing slopes.
Sunday Night
Partly cloudy. 0 to 4 cm of snow. 20 km/h west ridgetop wind. Treeline temperature -9 °C.
Monday
Mostly cloudy. 0 to 2 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -8 °C.
Tuesday
Mostly cloudy. 1 to 4 cm of snow. 30 km/h south ridgetop wind. Treeline temperature -6 °C.
Wednesday
Mostly cloudy. 1 to 5 cm of snow. 30 km/h east ridgetop wind. Treeline temperature -4 °C.
More details can be found in the Mountain Weather Forecast.
