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Avalanche Forecast

Archived

Mar 2nd, 2023–Mar 3rd, 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 formation of new wind slabs is to be watched at the top of eastern slopes (NE-E-SE) in the alpine. Even small, the triggering of an avalanche in these places could have serious consequences as a result of an uncontrolled slide on the ice and towards obstacles lower on the slope. Make sure you have the required level of training before committing to an engaging descent.

Confidence

High

Avalanche Summary

No new avalanche has been observed or reported recently.

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

Near the summits, the wind has redistributed the available snow, exposing the crust or ice at the surface and creating an overlay of hard wind slabs. In the more sheltered alpine couloirs, the February 17 crust is buried in places under 10 to 15 cm of snow. This crust is particularly present on Mount Albert. Facetted grains are slowly developing on this crust.

The best snow conditions are in areas protected from the wind, above 600 m, where the snow has been preserved from the weather events of the last few weeks (thaw and wind).

In general, the height of the snow cover varies from 70 to 90 cm in the valley to 100 to 150 cm in the middle mountains.

Weather Summary

Forecast for the Chic-Chocs ridges and summits.

Synopsis: A low pressure system from the southwest will pass south of Nova Scotia on Thursday evening and will bring snow overnight.

Thursday evening and night: Snow, 3-5 cm, increasing northwesterly winds up to 20 to 40 km/h, minimum -14 C.

Friday: Clearing in the afternoon. no precipitation, northwesterly winds 40 to 50 km/h, maximum -12 C.

Saturday: Sunny, no precipitation, northwesterly winds 20 to 40 km/h, maximum -7 C.

Sunday: Sunny, no precipitation, northwesterly winds 50 to 70 km/h, maximum -7 C.

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

Terrain and Travel Advice

  • Wind slabs are most reactive during their formation.
  • Be carefull around freshly wind loaded features.

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.