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Avalanche Forecast

Archived

Feb 3rd, 2024–Feb 4th, 2024

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

Regions

Chic-Choc Mountains.

Moderate to strong northeast winds will carry the new snow and continue the formation of leeward wind slabs, particularly in the alpine.

Approach leeward slopes and crosswind slopes with caution.

Confidence

High

Avalanche Summary

Several small natural avalanches (size 0.5) of dry loose snow and a small wind slab avalanche (size 0.5) observed in the extreme terrain of the Patrouilleurs wall.

Small wind slab avalanche (size 0.5) accidentally triggered by a skier in the Benny couloir on Mont Albert.

If you go into the backcountry, thanks for sharing your observations on the Mountain Information Network (MIN).

Snowpack Summary

In the alpine region, the new snow (around 10-12 cm) have been wind blown and covers a wide range of wind-affected snow, or a crust. There is significantly more snow on the southern and eastern slopes. North and west-facing slopes are mostly free of snow, apart from couloirs and other depressions.

At and below the treeline, in areas protected from the wind, 15 to 25 cm of low-density snow cover a layer of dense snow. The latter rests on 2 to 10 cm of facetted that have developed on top of the New Year's Day melt-freeze layer. At these elevations, the best snow is found on the northern slopes.

The average height of the snowpack is approximately 100 cm, but varies greatly according to aspect and elevation.

Weather Summary

Synopsis: Still under the effect of a high-pressure ridge on Sunday.

Saturday evening and night: A few clouds. Wind northeast, 20 to 40 km/h. Low -15.

Sunday: Sunny. Wind northeast, 30 to 50 km/h. High -11

Monday: Alternating sun and clouds, light snow. Strong northeast wind. High -12.

Tuesday: Sunny. Light northeast wind. High -7.

For more details, check out the most recent alpine weather forecast.

Terrain and Travel Advice

  • Fresh wind slabs will likely form throughout the day, diligently watch for changing conditions.
  • Carefully evaluate steep lines for wind slabs.
  • Small avalanches can have serious consequences in extreme terrain. Carefully evaluate your line for wind slab hazard before you commit to it.
  • Be cautious of buried obstacles especially below treeline.

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.