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Avalanche Forecast

Archived

Feb 26th, 2026–Feb 27th, 2026

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

Regions

Chic-Choc Mountains, Chic-Chocs.

The wind forecast for Thursday night into Friday could transport snow available in the mountains and cause new wind slabs to form on leeward slopes.

Take the time to carefully assess slopes that have recently been loaded by wind before committing to them, remaining alert for signs of instability.

Confidence

Moderate

  • We are uncertain due to the variability of wind effect on the snowpack.

Avalanche Summary

A size 1.5 wind slab avalanche was triggered intentionnally by a skier on a north-east facing slope in the Mount St-Pierre valley yesterday (25 February 2026). https://avalanche.ca/mountain-information-network/submissions/c13152bf-12a2-11f1-9ec3-0a58a9feac02

If you head into the backcountry, thanks for sharing your observations on the Mountain Information Network (MIN).

Snowpack Summary

Since Monday, 15 to 20 cm of very light snow has fallen on the southern part of the area (Lyall, Hog's Back, Albert), while the Madeleine Mines sector has received more than 30 cm. There is therefore significant spatial variability across the area.

In the alpine terrain at Albert and at the tree line on Hog's Back, the snow has settled unevenly due to changing wind directions. In sheltered areas, it lies on firm surfaces or on a crust on sunny slopes. Some larger accumulations are present in areas of lateral loading. West-facing slopes remain generally bare.

At Mines Madeleine, the alpine sector and the tree line have been loaded much more significantly.

Below the tree line and in areas protected from the wind, there is 20 to 40 cm of light snow resting on a gradually denser cover. However, the distribution remains highly variable depending on the sector.

At mid-mountain, the average snowpack depth is approximately 120 cm.

Weather Summary

WEATHER FOR THE CHIC-CHOCS RIDGES AND PEAKS

Cold temperatures and sunshine are on the menu for Friday before a low-pressure system brings extreme winds and precipitation on Saturday.

Thursday evening and night: Partly cloudy, light snow. Winds shifting to the west at 19 to 31 mph. Significant cooling, low of -19°C.

Friday: Alternating sun and clouds. Wind from the west at 20 to 30 km/h. High of −17°C.

Saturday: Snow, 5 to 10 cm. Wind from the south at 70 to 100 km/h. High -2°C. Freezing level at 450 m.

Sunday: Alternating sun and clouds. Wind from the northwest at 20 to 40 km/h. High -22°C.


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

Terrain and Travel Advice

  • Wind slabs are most reactive during their formation.
  • Carefully evaluate steep lines for wind slabs.
  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.

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.