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Avalanche Forecast

Archived

Feb 9th, 2023–Feb 10th, 2023

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

Regions

Chic-Choc Mountains, Littoral, Murdochville.

With all the icy surfaces at higher elevations, it is best to limit your travel and stay below the tree line.

Confidence

Moderate

Avalanche Summary

No new avalanche has been observed or reported in the last 24 hours.

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 W high winds of last weekend. New snow received afterwards also blew off and very little leeward accumulation was observed. Below the treeline, 35 to 45 cm of wind-affected snow was found on top of the decaying crust.

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: A low-pressure system will pass over the Gaspé Peninsula on Friday and Saturday bringing snow and wind.

Thursday evening and night: Cloudy. 3 cm of snow. Wind from the southeast at 10 to 30 km/h. Min. -16C.

Friday: 10 cm of snow. Wind southeast 20 to 60 km/h. Max. -11C.

Saturday: Cloudy. 2 cm of snow. Wind northwest 15 to 50 km/h. Max. -15C.

Sunday: Cloudy. 1 to 2 cm of snow. Wind northwest 15 to 50 km/h. Max. -8C.

For more details, check the Alpine Weather Forecast.

Terrain and Travel Advice

  • Closely monitor how the new snow is bonding to the 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.

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.