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Avalanche Forecast

Archived

Dec 30th, 2023–Dec 31st, 2023

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

Regions

Chic-Choc Mountains.

The increasing winds and new snow could form wind slabs in the start zones and alpine couloirs.

Confidence

High

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

In the alpine, from 5 to 10 cm of low-density snow overlies on the crust left by the last storm. Snow cover is still minimal, but some couloirs and depressions have a slightly deeper snowpack. The new snow may cover some natural obstacles, but these remain close to the surface. Many areas at treeline and below are covered only by a thin layer of snow, which is why the index is below threshold for these elevation bands. Overall, the snowpack varies from 5 to 40 cm.

Weather Summary

Synopsis: North winds, combined with the unfrozen Saint-Lawrence, will favor orographic lifting. A few more centimetres can be expected.

Saturday evening and night: Cloudy. 1 to 2 cm of snow. North winds increasing to 50 km/h. Min. -10C.

Sunday: Cloudy. 1 to 3 cm of snow. Northwest winds from 45 to 50 km/h. Max. -13C.

Monday: Alternating sun and clouds. Northwest winds from 35 to 40 km/h. Max. -13C.

Tuesday: Cloudy. 2 to 3 cm of snow. Winds from 40 to 45 km/h from the west. Max. -13C.

Terrain and Travel Advice

  • Avalanche danger is often elevated in alpine gullies where snow has accumulated.
  • Wind slabs are most reactive during their formation.
  • Fresh wind slabs will likely form throughout the day, diligently watch for changing conditions.

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.