Stick to conservative, low consequence slopes free from overhead hazard
Human triggered avalanches are likely and natural avalanches are possible during snowfall and active wind loading
Further snowfall adds more stress to buried weak layers. Facets, surface hoar and crusts in the snowpack may be more reactive, producing widely propagating avalanches.
Fresh storm slabs are expected to form, with wind affect creating deep, sensitive deposits in north and east facing terrain features.
A natural avalanche cycle occurred to size 3, however full details are limited.
With further snow and wind expected, another natural cycle may occur in wind affected terrain.
By Monday afternoon, 10-30 cm of new snow will raise recent storm totals to 40-90 cm. Snow is accompanied by strong southwest wind, forming deeper deposits on north and east aspects. Windward slopes may be scoured back to an old crust. In sheltered features, storm snow could overlie surface hoar or a sun crust.
Crust, facet and spotty surface hoar layers exist in the upper 1.5 metres of the snowpack. These layers are most concerning at treeline and below, especially in areas where the snowpack is shallower.
Below, the remaining snowpack is generally well settled and bonded.
Saturday Night
Cloudy. 5 to 15 cm of snow. 80 km/h southwest ridgetop wind. Treeline temperature -8 °C.
Sunday
Cloudy. 5 to 15 cm of snow. 70 km/h west ridgetop wind. Treeline temperature -7 °C.
Monday
Mostly cloudy. 2 to 10 cm of snow. 60 km/h west ridgetop wind. Treeline temperature -7 °C.
Tuesday
Mostly cloudy. 5 to 20 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -3 °C.
More details can be found in the Mountain Weather Forecast.
