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Avalanche Forecast

Archived

Feb 14th, 2023–Feb 15th, 2023

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

Regions

Chic-Choc Mountains, Littoral, Murdochville.

Although the index is low, there are always isolated wind slabs in the mountains that could surprise you.

The exposed crust in the alpine and the great variability of surfaces makes travel difficult at times.

Confidence

Moderate

Avalanche Summary

A size 2 slab avalanche crown, more than 48 hours old, was observed by the field team in the Cuve de la Serpentine at Mont Albert.

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

The 20 to 25 cm of light snow of the last week was greatly blown and redistributed by the wind. In the alpine, many surfaces were eroded to the January 18th crust. There is a great deal of spatial variability, with the possibility of isolated pockets of larger accumulations in the usual loading locations.Below the treeline, 50-60 cm of less wind-affected snow can be found on top of the decaying January 18th crust.In general, snowpack heights range 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: Arrival of a major low pressure system on Wednesday over the Chic-ChocsTuesday evening and night: Clear. Wind northwest 30 to 40 km/h. Low -12. Wednesday: Becoming cloudy in the afternoon. Wind southwest 30 km/h increasing to 60 km/h in the afternoon. High -3. Freezing level 400m. Thursday: Snow, 5 to 7 cm. Chance of freezing rain. Wind northwest 50 to 70 km/h. Maximum 0. Freezing level at 900m.Friday: Snow 5 cm. Wind northwest 30 to 50 km/h. Maximum -13. Freezing level back to sea level.

For more details, check the Alpine Weather Forecast.

Terrain and Travel Advice

  • Carefully evaluate steep lines for wind slabs.
  • Wind slabs may be poorly bonded to the underlying crust.

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.