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Avalanche Forecast

Archived

Jan 2nd, 2023–Jan 3rd, 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 Rockies, McBride, Quesnel, Sugarbowl, Kakwa, McGregor, Pine Pass, Renshaw, Robson, Tumbler.

The snowpack consists of multiple buried weak layers. The likelihood of triggering avalanches is decreasing, however, if you do the consequences could be very high.

Confidence

Moderate

Avalanche Summary

No recent avalanche activity has been reported in the region.

Please continue to share any observations or photos on the Mountain Information Network.

Snowpack Summary

Roughly 30 to 60 cm of low-density snow overlies a generally weak, facetted snowpack with multiple buried weak layers. A layer of particular concern that was buried in November, consists of weak facets, surface hoar, and/or a thin crust, and is near the bottom of the snowpack.

Snowpack depths are roughly 150 to 175 cm at treeline.

Weather Summary

Monday night

Mostly clear, with no precipitation. Moderate southerly winds. -5 to -10 C at treeline. Temperate inversion in the alpine.

Tuesday

Mostly sunny, with no precipitation. Moderate southwest winds. -5 to -10 C at treeline.

Wednesday

Mostly sunny, with no precipitation. Moderate southerly winds. -5 to -10 C at treeline.

Thursday

Mostly cloudy, with no precipitation. Moderate to strong southerly winds. 0 to -5 C at treeline.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Keep in mind that human triggering potential persists as natural avalanching tapers off.
  • Be especially cautious near rock outcroppings, on steep convexities and anywhere the snowpack feels thinner than average.

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.