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Avalanche Forecast

Archived

Feb 12th, 2023–Feb 13th, 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 snow received in the last week has not been able to completely cover the crust at higher elevations, making travel difficult on many slopes exposed to west winds.

Confidence

Moderate

Avalanche Summary

A small size 1 slab avalanche was triggered by a skier Saturday in the upper Goulue at Hog's Back Mountain.

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

At higher elevations, much of the surface was eroded to the January 18th crust by the blizzard of a week ago. The 20 to 25 cm of light snow over the last week was blown by southeast and then northwest winds. Below treeline, 50 to 60 cm of snow was found on top of the decaying January 18 crust, less affected by the wind.

In general, snowpack heights ranged from 70-90 cm in the valley to 100-150 cm in the mid-mountain.

Weather Summary

Forecast for the Chic-Chocs ridges and summits.

Synopsis: The region will be under the influence of 2 high pressure systems bringing relatively calm weather.

Sunday evening and night: Clearing. Wind northwest 25 to 40 km/h. Min. -19 C.

Monday: Sunny. Wind southeast 5 to 15 km/h. Max. -11 C.

Tuesday: Sunny. Wind northwest 10 to 20 km/h. High -10 C.

Wednesday: Cloudy. Wind south 15 to 30 km/h. High -4.

For more details, check the Alpine Weather Forecast.

Terrain and Travel Advice

  • Recent wind has varied in direction so watch for wind slabs on all aspects.

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.