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Avalanche Forecast

Archived

Apr 7th, 2023–Apr 8th, 2023

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, Littoral, Murdochville.

The winter conditions present in the mountains are very different from what we find further down in the valley !

Fresh snow and moderate to strong northwesterly winds have formed new wind slabs, which are to watch at the top of eastern slopes in the alpine.

Confidence

High

Avalanche Summary

No new avalanches have been observed or reported.

Thanks for contributing to the collection of this valuable data by sharing with other users on the Mountain Information Network or by writing to us directly at [email protected].

Snowpack Summary

In the alpine, the windward western slopes have been swept to the crust. The eastern leeward slopes have accumulated 5-10 cm of new dry snow and wind slabs 15-40 cm thick have formed at the top of alpine slopes.

At treeline and below treeline, the 15 to 35 cm of snow above the March 26 crust has become wet and sticky with a brittle surface crust that cannot support the weight of a skier or snowboarder except on solar slopes where the snow has been more affected by radiation.

The middle and the base of the snowpack is well consolidated, and of increasing density, interspersed with several melt freeze crusts from the last few weeks.

Weather Summary

Forecast for the Chic-Chocs ridges and summits.

Synopsis: The building of a high pressure ridge brings light scattered flurries and sunny spells for Saturday.

Friday evening and night: Cloudy with flurries, 1-2 cm, northwesterly winds 40 to 50 km/h, minimum -12 C.

Saturday: Cloudy with light scattered flurries, no precipitation, westerly winds 30 to 40 km/h, maximum -12 C.

Sunday: A mix of sun and cloud, no precipitation, northwesterly winds 30 to 50 km/h, maximum -5 C.

Monday: Sunny, no precipitation, northwesterly winds 20 to 30 km/h, maximum +3 C.

For more details, see the Chic-Chocs alpine forecast.

Terrain and Travel Advice

  • Approach lee and cross-loaded slopes with caution.
  • Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.
  • Wind slabs are most reactive during their formation.

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.