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Avalanche Forecast

Archived

Dec 15th, 2022–Dec 16th, 2022

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.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

Chic-Choc Mountains.

The avalanche danger rating is low because the snow cover remains minimal at the beginning of the season. Small isolated lee slopes in the alpine and cross loaded areas at treeline could however present an increased danger and should be to watch. Getting out on the mountain? We need your observations! https://www.avalanche.ca/mountain-information-network

Confidence

High

Avalanche Summary

No new avalanche activity has been observed or reported. Please share your observations at [email protected], or with the Mountain Information Network.

Snowpack Summary

In the end, the storm earlier this week have left between 15 and 30 cm of snow depending on the areas and elevation. Strong to extreme northeasterly winds have redistributed the new snow, exposing facing slopes to rock or crust and accumulating up to 100 cm in sheltered leeward areas. Surface wind slabs are fairly firm in the alpine and much softer at treeline. Despite the influx of new snow, snow conditions remain minimal. The crust and obstacles such as rocks, stumps, trees and trunks are barely covered and just waiting for you to leave beautiful marks on your skis or board, or to catch your shins.

Weather Summary

Forecast for the Chic-Chocs ridges and summits.

A ridge of high pressure is keeping clouds and mostly dry conditions for Friday.

Thursday night: Cloudy, Easterly winds 20 to 40 km/h, minimum -5 C, freezing level at valley bottom.

Friday: Cloudy, South-easterly winds 30 to 50 km/h, maximum -3 C, freezing level at valley bottom.

Saturday: Light snow, 1-2 cm, Easterly winds 40 to 60 km/h, maximum -5 C, freezing level at valley bottom.

Sunday: Snow, 5-10 cm, North-easterly winds 30 to 50 km/h, maximum -3 C, freezing level at 350 m.

For more details, check out the Chic-Chocs alpine weather forecast.

Terrain and Travel Advice

  • Carefully evaluate steep lines for wind slabs.
  • Wind slabs may be poorly bonded to the underlying crust.
  • Small avalanches can have serious consequences in extreme terrain. Carefully evaluate your line for wind slab hazard before you commit to it.

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.