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Avalanche Forecast

Archived

Feb 24th, 2025–Feb 25th, 2025

Alpine
Natural avalanches possible, human triggered probable.
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.

The next system will bring variable conditions to the mountains, depending on the time of day and your altitude.

Adapt your plans to these changes, and if in doubt, opt for conservative terrain.

Confidence

Low

Avalanche Summary

Several small loose dry avalanches reacting to skiers were observed in the alpine.

If you are out in the backcountry, please share your observations on the Mountain Information Network (MIN).

Snowpack Summary

At all elevations, a thin sun crust can be expected on the E, S and W aspects. In the alpine, 10 to 15 cm of new snow have been redistributed by moderate winds and lie on a variety of old, wind-sculpted surfaces. In areas sheltered from the wind and below treeline, around ten centimetres of fresh snow cover a thin, breakable crust, on top of 20 to 40 cm of low-density snow. The snowpack is well consolidated, but a fragile layer of facets persists at the base in places where it is thinner. The height of the snowpack varies between 120 and 220 cm.

Weather Summary

WEATHER FOR THE CRESTS AND SUMMITS OF CHIC-CHOCS

A system is coming, bringing with it uncertainties about the amount and form of the precipitation, and about the temperatures in the mountains.

Monday evening and night: Cloudy. 8 to 12 cm of snow. Winds 60 to 70 km/h from the southwest. -8C. Freezing level at valley bottom.

Tuesday: Cloudy. 1-2 cm of snow, possibly turning to rain. Southwest winds from 40 to 60 km/h. -3C. Freezing level: 700m.

Wednesday: Alternating sun and cloud. Winds from 5 to 15 km/h from the north. -8C.

Thursday: Cloudy. Trace of snow. Winds from 30 to 40 km/h from the west. -8C.

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

Terrain and Travel Advice

  • Approach lee and cross-loaded slopes with caution.
  • A moist or wet snow surface, pinwheeling, and natural avalanches are all indicators of a weakening snowpack.
  • If triggered, wind slabs avalanches may step down to deeper layers resulting in larger avalanches.

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.

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.