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Avalanche Forecast

Archived

Dec 31st, 2023–Jan 1st, 2024

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.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

South Coast Inland, Birkenhead, Duffey, South Chilcotin, Stein, Taseko.

Up to 10 cm of fresh snow has fallen in the uppermost elevations.

Carefully assess the bond of the recent snow with the old surface.

Confidence

Moderate

Avalanche Summary

No new avalanches have been reported. Old evidence of large cornice falls and small wet loose avalanches from steep terrain may still be visible. No avalanches involving surface hoar/ crust were reported over the last 3 days, but field observations are limited.

If you head into the backcountry, please consider submitting observations and/or photos on the Mountain Information Network.

Snowpack Summary

Up to 10 cm of recent snow may sit over a recent thin melt-freeze crust up to 2000 m. Underneath, 30 and 65 cm of recent storm snow and heavily wind-affected snow overlies a thick crust and, in some sheltered areas, surface hoar. Professionals are still concerned about the reactivity of this layer, especially near thin and shallow rocky features. Overall, the snow depth remains shallow, with average treeline snowpack depths between 80 and 120 cm.

Weather Summary

Sunday Night

Mainly cloudy, no precipitation, alpine wind southwest 20 km/h, treeline temperature around -5 °C, freezing level at valley bottom.

Monday

Mix of sun and clouds, no precipitation, alpine wind southwest 20 to 40 km/h, treeline temperature around -4 °C, freezing level at 1300 m.

Tuesday

Mainly cloudy, up to 3 cm of snow, alpine wind southwest 20 to 40 km/h, treeline temperature around -2 °C, freezing level at 1600 m.

Wednesday

Mainly cloudy, no precipitation, alpine wind southwest 20 km/h, treeline temperature around -2 °C, freezing level at 1600 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Investigate the bond of the recent snow
  • Wind slabs may be poorly bonded to the underlying crust.
  • Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.

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.