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Avalanche Forecast

Archived

Feb 16th, 2025–Feb 17th, 2025

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

Regions

Chic-Choc Mountains.

*** A special avalanche watch is activated for areas outside our forecast zone ***

Heavy snowfalls are expected until Tuesday morning. Travel in avalanche terrain is not recommended.

Confidence

Moderate

Avalanche Summary

An avalanche of size 1.5 was observed on a south-east facing slope in the alpine at Mont Albert. It seems to have occurred on Friday or Saturday.

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

Snowpack Summary

We could receive between 20 and 30 cm of new snow overnight, and possibly another 25 cm during the day on Monday. In the alpine and at treeline, this new snow will be deposited either on hard-packed snow or on exposed rock on the western and northern slopes. On the eastern and southern slopes, the new snow will settle on wind slabs that were still reactive before the storm.

The middle of the snowpack is well consolidated. At depth, a layer of well-developed facets is present, particularly in areas where the snowpack is thinner.

Weather Summary

WEATHER FOR THE CRESTS AND SUMMITS OF CHIC-CHOCS

Sunday evening and night: Blizzard starting early this evening. Accumulation of 20 to 30 cm. Northeast winds, 40 to 70 km/h. Low -12.

Monday: Blizzard. Accumulation of 15 to 25 cm. Northeast winds, 20 to 40 km/h. Maximum -5.

Tuesday: Intermittent snow. Accumulation 10 to 15 cm. Wind northwest, 20 to 40 km/h. High -5.

Wednesday: Mostly cloudy. Wind northwest, 20 to 40 km/h. High -3.

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

Terrain and Travel Advice

  • Storm slab size and sensitivity to triggering will likely increase through the day.
  • Be aware of the potential for human triggerable storm slabs at lower elevations, even on small features.
  • Don't let storm day fever lure you into consequential terrain.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.