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Avalanche Forecast

Archived

Jan 12th, 2024–Jan 13th, 2024

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 Rockies, McBride, Quesnel, Sugarbowl, Kakwa, McGregor, Pine Pass, Renshaw, Robson.

Seek out sheltered terrain where the snow hasn’t been wind-affected. Check out our Forecasters' Blog about factoring extreme cold into your trip plans.

Confidence

Moderate

Avalanche Summary

Thursday The field team reported a size 1 (small) wind slab avalanche in the Ground Hog area by Barkerville out of steep north-facing alpine terrain. Check out this MIN for more details.

Wednesday A few size 1 (small) skier-triggered slabs were reported in the Cariboos near Quesnel Lake. They were 55 cm deep and failed on a weak layer of surface hoar.

Tuesday A natural size 2.5 (large) wind slab was reported on a southwest face at treeline north of Powder King.

Snowpack Summary

Previous strong winds have created wind slabs in exposed areas at treeline and above on south and westerly faces.

10-20 cm of new snow fell in the region earlier this week, adding to about 20-30 cm of older storm snow. Collectively, this snow sits on a crust up to 1400 m in the north and 1900 m in the south. In parts of the Cariboos, this snow may also overlie a weak layer of surface hoar.

Two more layers of surface hoar may be found buried between 90 and 150 cm at treeline. The likelihood of triggering these layers is low, with the possible exception being shallow, rocky areas at upper treeline.

The current snowpack has considerable variation in structure and depths across the region and is shallow for this time of year.

Weather Summary

Friday night

Mostly clear with no new snow, northwesterly wind 20-30 km/h, treeline temperature low of -37°C

Saturday

Partly cloudy with no new snow, southwest wind 15-20 km/h. treeline temperature high of -24°C.

Sunday

Mix of sun and cloud with no new snow, northwest wind 20-30 km/h, treeline temperature high -21°C.

Monday

Cloudy with no new snow, northwest wind 30-50 km/h, treeline temperature high -15°C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.
  • The best and safest riding will be on slopes that have soft snow without any slab properties.

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.