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Avalanche Forecast

Archived

Jan 6th, 2025–Jan 7th, 2025

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

Regions

Badshot-Battle, Goat, Kokanee, Retallack, Valhalla.

Low-consequence terrain is recommended.

Isolated wind slabs may still be triggered by riders.

Confidence

Moderate

Avalanche Summary

No new avalanches have been reported since Friday. The persistent avalanche problem is slowly improving but deserves patience and continued vigilance.

Snowpack Summary

A thin crust overlies 20 to 30 cm of soft snow in most areas. This sits on a layer of surface hoar in isolated locations and a crust on sun-affected slopes.

A persistent weak layer that consists of a crust with overlying facets and/or surface hoar, is buried 90 to 120 cm. While this layer is widespread, it is expected to be most problematic on north through east-facing slopes between 1700 and 2300 m.

At treeline, snow depths range from 100 to 180 cm.

Weather Summary

Monday night

Mostly clear. 10 to 20 km/h north ridgetop wind. Treeline temperature -4 °C.

Tuesday

Mostly sunny. 20 to 40 km/h west ridgetop wind. Treeline temperature -2 °C.

Wednesday

Cloudy. 20 to 40 km/h west ridgetop wind. Treeline temperature -6 °C.

Thursday

Scattered cloud. 20 to 30 km/h northwest ridgetop wind. Treeline temperature -6 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid steep terrain, including convex rolls, or areas with a thin, rocky, or variable snowpack.
  • Wind slabs are isolated, but may remain reactive.

Problems

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.

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.