Avoid all avalanche terrain.
Unseasonable warm weather will likely result in a widespread natural avalanche cycle.
The likelihood of persistent slab avalanches will increase with each day of warm weather. A widespread avalanche cycle is expected on slopes that did not avalanche yet.
Intense warming will likely trigger numerous wet loose and wet slab avalanches. These may step down to deeper weak layers resulting in larger-than-expected avalanches.
Numerous very large persistent slab avalanches continued to fail naturally throughout the region on Friday, some failing due to cornice falls on to the slopes below. Pinwheeling and loose wet activity also occurred.
We expect widespread, large, natural avalanches to continue with forecasted warm temperatures.
Expect to find moist or wet surface snow.
15 to 20 cm of wet snow (or rain at lower elevations) was redistributed by southerly winds. This overlies the settled 40 to 80 cm of storm snow.
Several persistent weak layers are buried between 90 and 180 cm deep, including hard crusts with overlying weak facets and surface hoar. These weak layers have produced avalanche activity over the last week.
Saturday Night
Mostly clear. 30 to 50 km/h southwest ridgetop winds. Treeline temperatures around +4 °C. Freezing level 2500 m.
Sunday
Increasing clouds. 40 to 60 km/h southwest ridgetop winds. Treeline temperatures around +4 °C. Freezing level 2000 m.
Monday
Partly cloudy, chance of flurries in the morning. 10 to 20 km/h south ridgetop winds. Treeline temperatures around +5 °C. Freezing level 2000 m.
Tuesday
Partly cloudy. 10 km/h southeast ridgetop winds. Treeline temperatures around +5 °C. Freezing level 2000 m.
For more details, see the Mountain Weather Forecast.
More details can be found in the Mountain Weather Forecast.
