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Avalanche Forecast

Archived

Feb 13th, 2023–Feb 14th, 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 possible, human triggered probable.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

Chic-Choc Mountains, Littoral, Murdochville.

Although the alpine is generally crusted or hardened, isolated wind slabs can still be found. Be careful near areas that appear to be freshly loaded. These slabs may rest directly on a crust that can provide an excellent sliding surface.

Confidence

Moderate

Avalanche Summary

No new avalanches were 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

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: Weak low pressure overnight before the sun returns late Tuesday morningMonday evening and night: Partly cloudy. Wind southeast, 5 to 10 km/h. Low -18.Tuesday: Clearing midday. Wind northwest, 10 to 20 km/h. High -10 C.Wednesday: Cloudy. Wind southwest, 40 to 60 km/h. High -2. Freezing level at 300 mThursday: Snow, 5 to 7 cm. Chance of freezing rain. Wind northwest, 40 to 60 km/h. High -3. Freezing level at 650 m.

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.