A buried weak layer means large avalanches are possible.
Avoid large open slopes at treeline.
A weak layer of buried surface hoar and facets is worst at treeline in areas sheltered from previous strong south and west wind. It's unknown at this stage if it exists in the alpine and below treeline.
Storm slabs can be triggered by riders, especially where the wind has built deeper deposits.
On Friday, there were a few large skier-triggered persistent slabs failing at treeline. It is suspected they both failed on surface hoar and/or sugary facets over a crust buried 30-50 cm deep.
20 to 30 cm of recent snow has been redistributed by strong south and west wind.
This sits on a spotty layer of surface hoar on a crust that is 30 to 50 cm deep.
The base of the snowpack has a few crusts from early in the season that are not currently a concern.
Saturday Night
Mostly cloudy. 2 to 5 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1200 m.
Sunday
Mostly cloudy. 2 to 5 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1500 m.
Monday
Mostly cloudy. 10 to 25 mm of precipitation as snow or rain at treeline. 40 km/h southwest ridgetop wind. Treeline temperature 1 °C. Freezing level 1900 m.
Tuesday
Mostly cloudy. 1 mm of rain at treeline. 40 km/h southwest ridgetop wind. Treeline temperature 3 °C. Freezing level 2500 m.
More details can be found in the Mountain Weather Forecast.
