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Avalanche Forecast

Archived

Dec 12th, 2023–Dec 13th, 2023

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

Regions

Chic-Choc Mountains.

In the end, the storm left 10 to 15 cm of snow on the mountains, with a new crust and wind slabs on the north-east to south-facing slopes.

Confidence

Moderate

Avalanche Summary

Early season, observations are limited. Thanks for sharing your observation through the Mountain Information Network if you head out.

No new avalanches have been observed or reported. Please share your observations at [email protected] or via the Mountain Information Network.

Snowpack Summary

We have 15 cm of snow covering a new crust that formed during the storm, which we call the December 11 crust. The November 28 crust is about 25 cm deep. The height of the snow cover varies from 30 to 70 cm depending on altitude. Conditions below treeline are still very marginal.

Weather Summary

Synopsis: Temperatures will fluctuate between -5 and -15 over the next few days, with moderate winds from the west. By the weekend, we could receive close to 15 cm of snow.

Tuesday evening and night: Cloudy. 2 to 4 cm of snow. Moderate southwesterly wind, 20 to 40 km/h. High -5. Low -10.

Wednesday: Cloudy with sunny spells. 5 to 7 cm of snow. Moderate west wind, 20 to 40 km/h. High -5. Low -15.

Thursday: Alternating sun and cloud. 2 to 4 cm of snow. Moderate westerly wind, 30 to 40 km/h. High -10.

Friday: Alternating sun and cloud. Moderate westerly wind. High -3.

Terrain and Travel Advice

  • Carefully evaluate steep lines for wind slabs.
  • Avoid areas where the snow feels stiff and/or slabby.

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.