Up to 30 cm of new snow & strong winds will build reactive slabs at upper elevations.
The danger will rise as new snow accumulates.
Up to 30 cm of new snow and strong southerly winds will build reactive storm slabs. These slabs will be most prone to triggerig on lee northerly slopes. At lower elevations a wet loose problem may also develop in the afternoon.
No recent avalanches have been reported, but incoming precipitation from Tuesday’s storm is expected to significantly increase the likelihood of avalanche activity.
If you are heading into the backcountry, consider sharing your observations and posting a MIN.
20 to 30 cm of new snow is expected to accumulate at upper elevations by the end of Tuesday, accompanied by strong southerly winds. The snow may switch to rain below 1400 m by the late afternoon.
The new snow will be falling on 5 to 15 cm of recent snow that is covering a widespread, thick and hard crust that is present right to mountaintops.
The snowpack below the crust is strong and bonded with no layers of concern.
Monday Night
Mostly cloudy. 2 to 7 cm of snow at treeline, possible rain below. 20 km/h south ridgetop wind. Treeline temperature -1 °C. Freezing level 1350 m falling to 900 m.
Tuesday
Cloudy. 10 to 25 cm of snow, possible rain below 1400 m in the afternoon. 60 km/h south ridgetop wind. Treeline temperature 0 °C. Freezing level rising to 1500 m.
Wednesday
Coudy. 15 to 35 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 900 m.
Thursday
Cloudy. 5 to 15 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1000 m.
More details can be found in the Mountain Weather Forecast.
