Avalanche danger is expected to increase throughout the day.
Surface instabilities or large cornice falls may step down to deeper persistent weak layers.
Several persistent weak layers exist in the upper meter of the snowpack. The likelihood of persistent slab avalanches will increase if the melt-freeze crust near the surface breaks down.
As surfaces become wet, loose wet avalanches will become more likely on steep slopes at all elevations.
On Friday, surface sluffing was reported across the region on steep terrain, including rider-triggered dry loose on northerly slopes and solar-induced wet loose on southerly slopes.
Expect increasing avalanche activity within the recent storm snow with the forecasted warm weather.
A spring diurnal cycle occurred up to 2000 m. The surface is either moist or capped with a thin crust on all aspects and elevations except for high northerly slopes where up to 25 cm of settled snow overlies a thick crust from late March. Below these crusts, the upper snowpack is moist.
Several weak layers from early March, mid-February, and late January can be found in the mid and lower snowpack.
The remainder of the snowpack is generally well settled.
Saturday Night
Clear. 15 to 20 km/h southwest ridgetop wind. Treeline temperature +0 °C. Freezing level around 1800 m with temperature inversion.
Sunday
Sunny. 10 to 30 km/h south ridgetop wind. Treeline temperature +8° C. Freezing level around 3000 m.
Monday
Cloudy with 10 to 15 cm of wet snow or rain. 20 to 40 km/h southeast ridgetop wind. Treeline temperature +4° C. Freezing level lowering to 2500 m.
Tuesday
Cloudy with 5 to 10 cm of new snow. 20 to 30 km/h southeast ridgetop wind. Treeline temperature +2° C. Freezing level around 1800 m.
More details can be found in the Mountain Weather Forecast.
