New snow and strong southerly winds will build reactive storm slabs on Monday.
Storm slabs have the potential to step down and trigger large, destructive avalanches.
Persistent weak layers in the upper snowpack remain a concern for human triggering. Where there is no supportive crust above, triggering these layers remains possible.
Moderate to heavy precipitation and strong southerly winds will build reactive storm slabs on Monday.
No new avalanches have been reported in the past few days.
If you head out in the backcountry, let us know what you're seeing by submitting a MIN report.
Up to 30 cm of new snow covers surface hoar and facetted snow from recent cold temperatures. In open areas, strong southerly winds will be redistributing new snow, creating wind slabs and wind-affected surfaces. A crust can be found below this snow up to 1500 m.
Two weak layers remain a concern:
A crust/facet layer buried early February down 100 to 130 cm.
A surface hoar layer buried mid-February down 80 to 110 cm.
Recent avalanche activity has involved these layers, with natural and human-triggered avalanches reported.
Below these layers, the remaining snowpack is generally well settled.
Sunday Night
Cloudy. 10 to 30 cm of snow. 60 km/h south ridgetop wind. Treeline temperature -8 °C.
Monday
Cloudy. 10 to 35 cm of snow. 70 km/h southwest ridgetop wind. Treeline temperature -5 °C.
Tuesday
Mostly cloudy. 5 to 15 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -5 °C.
Wednesday
Mostly cloudy. 2 to 4 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -5 °C.
More details can be found in the Mountain Weather Forecast.
