Avalanche Forecast

High

Small loose wet avalanches and pinwheeling were observed from steep, sun-affected slopes during warm periods earlier in the week.

With a cooling trend in the forecast, we expect avalanche activity will be unlikely on Thursday. However, as storm snow accumulates Thursday night and Friday, avalanche danger will rapidly rise.

If you are headed into the backcountry please consider submitting a MIN report.

Previous strong sunshine and warm temperatures formed a crust on most surfaces, except on north-facing alpine slopes, where some older soft snow possibly remains. Facets and surface hoar have been reported developing in shady, sheltered areas. A light dusting of up to 5 cm of new snow is expected by Thursday afternoon, with significantly more arriving Thursday night and Friday. The mid and lower snowpack is dense, well-settled, and currently free of concerning layers.

Wednesday Night

Clear, then increasing cloudiness. 30 to 40 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 2000 m dropping to 500 m.

Thursday

Cloudy with 0 to 5 cm of snow. 40 to 50 km/h southwest ridgetop wind. Treeline temperatures around -5 °C. Freezing levels remain around 500 m.

Friday

Cloudy with 20 to 30 cm of snow. 40 to 60 km/h south ridgetop wind. Treeline temperature -2 °C. Freezing level 700m, rising to 1200m.

Saturday

Cloudy with 5 to 15 cm of snow. 40 to 50 km/h southwest ridgetop wind. Treeline temperature -9 °C. Freezing level around 400 m.

More details can be found in the Mountain Weather Forecast.

• Periods of low danger may be a good time to increase your exposure.
• Avalanche activity is unlikely when a thick melt-freeze crust is present on the snow surface.
• Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.