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Avalanche Forecast

Archived

Jan 26th, 2025–Jan 27th, 2025

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

North Columbia, South Columbia, Blue River, Clearwater, Premier, Clemina, Esplanade, Jordan, North Monashee, North Selkirk, Robson, Central Selkirk, Gold.

Warming alpine temperatures could increase wind slab reactivity.

Confidence

High

Avalanche Summary

Several wind slab avalanches have been reported in recent days, triggered by a variety of factors. Most of the avalanches have occurred around ridge crests and on multiple aspects. Notably, some slabs failed on a buried surface hoar layer, located 30 to 40 cm deep.

Snowpack Summary

A thin crust or moist snow can be found on sun-affected slopes depending on the time of day. Variable wind-affected snow exists in wind-exposed terrain. While low-density, faceted powder can still be found in wind-sheltered terrain on primarily north through east aspects.

In the upper snowpack, layers of surface hoar buried throughout January are present, roughly 30 to 60 cm deep, and have shown signs of reactivity in areas where a cohesive slab has formed above.

The mid and lower snowpack is generally well-settled and strong, with no current concerns.

Weather Summary

Sunday Night

Mostly clear skies. 10 to 30 km/h northwest ridgetop wind. Treeline temperature -5 °C.

Monday

Sunny. 10 to 30 km/h northwest ridgetop wind. Treeline temperature -5 °C, while areas may experience above-freezing alpine temperatures.

Tuesday

Mostly sunny. 10 to 30 km/h west ridgetop wind. Treeline temperature 0 °C, while areas may experience above-freezing alpine temperatures.

Wednesday

Mostly sunny. 30 to 50 km/h southwest ridgetop wind. Treeline temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
  • The more the snowpack warms up and weakens, the more conservative your terrain selection should be.
  • Avoid areas where the snow feels stiff and/or slabby.

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.