Avoid exposed north and east slopes where wind and snow have formed slabs that are more likely to be reactive to human triggering.
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The new snow has bonded poorly to underlying layers. 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.
On Sunday, reports from the area noted significant sluffing in steep terrain.
On Saturday, avalanche control produced several explosive-triggered size 2 wind slab avalanches on northeast aspects at treeline.
We expect new snow will remain reactive to skier traffic on Tuesday, anywhere winds have formed slabs and fast-moving dry loose avalanches in steep terrain. Carefully manage sluffing in steep terrain.
Storm snow totals range from 15 to 35 cm, with deeper deposits on north and east facing slopes from wind loading during the storm.
The new snow is 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.
Monday Night
Partly cloudy with light flurries, 0 to 2 cm. 20 to 25 km/h northeast ridgetop wind. Treeline temperature -28 °C.
Tuesday
Mainly cloudy with light flurries, 0 to 1 cm. 10 to 20 km/h northeast ridgetop wind. Treeline temperature -26 °C.
Wednesday
Mainly sunny. 10 to 25 km/h southwest ridgetop wind. Treeline temperature -18 °C.
Thursday
Clear. 10 km/h southwest ridgetop wind. Treeline temperature -17 °C.
More details can be found in the Mountain Weather Forecast.
