Coquihalla

Cornices are becoming weak during spring and are prone to sudden failure.

Loose wet avalanches will be likely as the surface crust softens.

Learn more about spring snowpack conditions here.

No new avalanches were reported on Tuesday.

Check out this MIN report showing a couple of old large slabs failing on a crust on northerly aspects at treeline.

NOTE: Observations are currently very limited in this region.

Make observations and continually assess conditions as you travel.

A typical spring diurnal cycle is underway.

High freezing levels have formed a surface crust everywhere except possibly the highest north-facing terrain.

The snowpack is generally well-settled and strong, although dormant weak layers may still exist in some areas.

Sustained high freezing levels with poor overnight recovery have the potential to awaken dormant weak layers.

Lower elevations are melting out rapidly.

Wednesday Night

Clear. 20 to 30 km/h northeast ridgetop wind. Treeline temperature -3 °C. Freezing level 1500 m.

Thursday

Sunny. 20 to 30 km/h northeast ridgetop wind. Treeline temperature 4 °C. Freezing level 2200 m.

Friday

Sunny. 10 to 20 km/h southwest ridgetop wind. Treeline temperature 8 °C. Freezing level 3000 m.

Saturday

Mainly cloudy with isolated flurries. 30 to 40 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1800 m.

More details can be found in the Mountain Weather Forecast.

• Back off slopes as the surface becomes moist or wet with rising temperatures.
• A moist or wet snow surface, pinwheeling, and natural avalanches are all indicators of a weakening snowpack.
• Avalanche activity is unlikely when a thick melt-freeze crust is present on the snow surface.
• Avoid travelling on slopes below cornices.