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Avalanche Forecast

Archived

Mar 11th, 2026–Mar 12th, 2026

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.
Below Treeline
Natural avalanches unlikely.

Regions

Cariboos, North Columbia, Blue River, McBride, Premier, Quesnel, Clemina, Renshaw, Robson.

Seeking sheltered snow over hard crust will avoid both of the problems on our radar. Use more conservative terrain as you enter higher, wind-affected areas where the crust is thin or absent.

Confidence

Moderate

  • We are uncertain about how quickly persistent slabs are gaining strength.

Avalanche Summary

There have been no avalanche observations since the widespread natural avalanche cycle during the storm on the weekend. These included:

  • Storm and wind slabs size 2-3, on northeast to southeast aspects at alpine and treeline elevations.

  • Several size 3 persistent slab avalanches suspected to have run on the February crust layer. These observations were concentrated at treeline elevation in the east of the region.

Snowpack Summary

Up to about 15 cm of new snow should accumulate by end of day Thursday, adding to an existing 10-30 cm overlying firm early March surfaces including a crust below about 1700 - 1900 m with moist snow immediately below.

A few layers buried between late January and mid February, consisting of surface hoar, facets, and/or crust, are buried roughly 100 to 150 cm deep. We have uncertainty about both the distribution and reactivity of these layers in the region. They may remain problematic in isolated areas but we expect they are becoming less likely to trigger, especially where effectively capped by the early March crust.

The remainder of the snowpack is well consolidated, with no other significant layers of concern.

Weather Summary

Wednesday Night
Mostly cloudy with flurries bringing 5 to 10 cm of new snow. 20 to 50 km/h south ridgetop wind, increasing. Treeline temperature -9 °C.

Thursday
Becoming a mix of sun and clouds after a further 2 to 5 cm of new snow. 20 to 50 km/h west ridgetop wind, easing. Treeline temperature -10 °C.

Friday
A mx of sun and cloud with scattered flurries bringing 2 to 5 cm of snow, mainly toward the north of the region. 30 km/h southwest ridgetop wind. Treeline temperature -11 °C.

Saturday
Mostly sunny after 1 to 5 cm of new snow overnight. 20 km/h northwest ridgetop wind. Treeline temperature -12 °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.
  • Recent wind has varied in direction, so watch for wind slabs on all aspects.
  • Be mindful that deep instabilities are still present and have produced recent large avalanches.
  • In times of uncertainty, conservative terrain choices are our best defense.

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.

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.