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Avalanche Forecast

Archived

Dec 10th, 2023–Dec 11th, 2023

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

Cariboos, North Columbia, South Columbia, Clearwater, Quesnel, Jordan, Gold.

Strong winds will likely build reactive slabs around ridgelines and mid slope rollovers.

Confidence

Moderate

Avalanche Summary

Natural and human triggered avalanche activity has tapered off.

Human triggered avalanches are still possible at higher elevations, where slabs sit over the weak surface hoar.

Snowpack Summary

The recent 30-40 cm of storm snow has likely been redistributed into deeper deposits on north and east facing slopes at higher elevations. This sits over a rain crust that has been observed to ridgeline in most areas.

A layer of surface hoar is now buried 50-80 cm deep. The recent rain crust is thought to limit avalanches on this persistent weak layer. However, it may be possible to trigger this in isolated terrain features, or for small avalanches to step down to this layer.

The lower snowpack is a mix of rounded and faceted grains. A hard crust may be found near the ground.

Treeline snowpack depths are variable and generally range between 60 and 100 cm. Snowpack tapers rapidly as you move lower in elevation.

Weather Summary

Sunday Night

Cloudy with another 5 cm of snow possible. Westerly winds, 20-40km/h.

Monday

Mostly cloudy with no snow expected. Light and variable winds. Treeline temperatures reach -5 °C.

Tuesday

Mostly clear skies with no snow expected. Light and variable winds. Treeline temperatures reach -5 °C.

Wednesday

Mostly clear skies with no snow expected. Light and variable winds. Treeline temperatures reach -4 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.
  • Carefully assess open slopes and convex rolls where buried surface hoar may be preserved.
  • Use careful route-finding and stick to moderate slope angles with low consequences.

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.