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Avalanche Forecast

Archived

Feb 28th, 2025–Mar 1st, 2025

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

Regions

Chic-Choc Mountains.

The risk of avalanches will increase on Saturday with the arrival of the storm and the accumulation of snow in the mountains.

Confidence

Moderate

Avalanche Summary

No new avalanches were observed or reported.

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

Snowpack Summary

5 to 10 cm of new snow lay on a sun crust on the sunny slopes, at and below treeline. In the alpine and at treeline, a variety of wind-affected surfaces were observed (rocks, hard snow, snow accumulation). In wind-protected areas, 20 to 50 cm of fairly light snow lies on top of a well-consolidated snowpack. A significant presence of facets is found at the base of the snowpack (up to 60 cm), especially in areas where the snowpack 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 low-pressure system from the Great Lakes will reach the region around midday on Saturday. The Chic-Chocs will be in the northern quadrant of its path, bringing heavier snowfall.

Friday evening and night: Partly cloudy. Winds 20 to 40 km/h from the northwest. Low -18.

Saturday: Occasionally heavy snow beginning in the morning. Accumulations of 5 to 10 cm of snow during the day and 10 to 15 cm overnight. Winds 20 to 40 km/h from the south. Maximum -10.

Sunday: Snow. Accumulation of 5 cm. Winds 20 to 40 km/h from the northwest. High -15.

Monday: Mostly sunny. Wind 20 to 40 km/h from the northwest. High -15.

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

Terrain and Travel Advice

  • Wind slabs are most reactive during their formation.
  • 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.