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Avalanche Forecast

Archived

Apr 9th, 2024–Apr 10th, 2024

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Cariboos, Blue River, McBride, Premier, Quesnel, Clemina, Kakwa, Renshaw, Robson.

New snow and wind have built fresh wind slabs at higher elevations. Evaluate wind-affected terrain carefully as human-triggered wind slab avalanches are possible.

Confidence

Moderate

Avalanche Summary

There have been no reports of avalanche activity in the region however observations are limited at this time.

We expect users who head into the backcountry on Wednesday may see a small wind slab avalanche cycle from within the new snow.

Snowpack Summary

5 to 20 cm of storm snow covers the surface at higher elevations. As winds pick up, the new snow will be redistributed by primarily southwest wind into lee terrain features at alpine and treeline. The new snow sits above a crust or moist snow except on high northerly aspects above 2000 m where snow remained dry.

The lower snowpack is settled and well bonded.

Weather Summary

Tuesday Night

Partly cloudy with 0 to 2 cm of snow at upper elevations. Ridgetop wind northwest 20 to 40 km/h. Treeline temperature -7 °C. Freezing level valley bottom.

Wednesday

Mix of sun and cloud. Ridgetop wind southwest 15 to 30 km/h. Treeline temperature -1 °C. Freezing level 1800 m.

Thursday

Mainly cloudy with 0 to 3 cm of snow at upper elevations. Ridgetop wind southwest 20 to 40 km/h. Treeline temperature -1 °C. Freezing level 1700 m.

Friday

Mix of sun and cloud with 2 to 5 cm of snow at upper elevations. Ridgetop wind southwest 10 to 25 km/h. Treeline temperature -1 °C. Freezing level 1700 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.
  • Carefully evaluate steep lines for wind slabs.
  • Wind slabs may be poorly bonded to the underlying crust.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.