Warm air and rain may form a slab above a weak layer that could be touchy to riders.
Warm air and rain may rapidly form a reactive slab that overlies a widespread weak layer. This will be most problematic at higher elevations where the snowpack is relatively smooth without major ground roughness.
We haven't received any reports of avalanche activity in this region. Activity may increase with Monday night's stormy weather.
Light snow will switch to rain Monday night, wetting the snow surface. Rain could rapidly destabilize the 10 to 20 cm of recent snow that overlies a widespread weak layer of feathery surface hoar.
The middle and base of the snowpack is generally weak and faceted.
Snowpack depths at treeline are approximately 50 to 70 cm. The snowpack tapers drastically with elevation below treeline.
Monday Night
Cloudy with 2 to 5 cm of snow switching to light rain below 2500 m. Southwest alpine wind 40 km/h. Treeline temperature 0 °C.
Tuesday
Cloudy with trace snow or rain. Southwest alpine wind 20 to 40 km/h. Treeline temperature 1 °C. Freezing level dropping from 2500 m to 2000 m.
Wednesday
Cloudy with 2 to 5 cm of snow. South alpine wind 10 to 20 km/h. Treeline temperature -1 °C.
Thursday
Partly cloudy with trace snow. Northwest alpine wind 10 to 20 km/h. Treeline temperature -5 °C.
More details can be found in the Mountain Weather Forecast.
