Avoid exposed north and east slopes where wind and new snow have formed slabs that remain reactive to human triggering.
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Use extra caution in north and east facing terrain where winds have formed deeper deposits. Watch for signs of instability: whumphing, shooting cracks and recent avalanches.
The new snow has bonded poorly to underlying layers. Watch for dry loose avalanche activity in steep terrain and manage sluffing carefully.
On Saturday, several avalanche control with explosives triggered several size 2 wind slab avalanches on northeast aspects at treeline.
We expect new snow will remain reactive to skier traffic on Monday anywhere winds have formed slabs and fast-moving dry loose avalanches in steep terrain.
Storm snow totals range from 15 to 30 cm, with deeper deposits in wind-loaded areas.
The new snow is likely bonding poorly to old surfaces, which include melt-freeze crusts on sun-exposed slopes, surface hoar or facets on shaded slopes, and wind-affected snow at higher elevations.
The lower snowpack is strong and bonded.
Sunday Night
Cloudy with light flurries, 1 to 5 cm of snow. 15 to 20 km/h northeast ridgetop wind. Treeline temperature -25 °C.
Monday
Partly cloudy with a trace of new snow. 20 to 25 km/h northeast ridgetop wind. Treeline temperature -25 °C.
Tuesday
A mix of sun and cloud. 10 to 20 km/h northeast ridgetop wind. Treeline temperature -26 °C.
Wednesday
Clear. 10 km/h northwest ridgetop wind. Treeline temperature -20 °C.
More details can be found in the Mountain Weather Forecast.
