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Avalanche Forecast

Archived

Feb 13th, 2025–Feb 14th, 2025

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

Regions

Chic-Choc Mountains.

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

Heavy snow and strong winds are forecast for the next 24 hours. These rapid changes will greatly affect the stability of the snowpack.

Confidence

Low

Avalanche Summary

No new avalanches observed or reported.

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

Snowpack Summary

Between 10 and 15 cm of new snow is forecast for Thursday night. In the alpine and at treeline, this new snow will rest on a variety of wind-affected surfaces: Sastrugi, crust or superposition of wind slabs of different densities.

In areas sheltered from the wind and below treeline, the new snow will be added to the 25 to 40 cm of low-density snow already present.

The middle of the snowpack is well consolidated. At the base, there is a well-developed layer of facets, especially where the snowpack is thinner.

Weather Summary

A low-pressure system from Texas brings snow on Thursday evening and Friday.

Thursday evening and night: Snow heavy at times. Accumulations of 10 to 15 cm. Winds southeast turning to northwest, 30-60 km/h. Low - 14.

Friday: Snow flurries, 5 to 10 cm. North-westerly winds from 70 to 90 km/h. Temperatures dropping to -16 in the afternoon.

Saturday: Sunny. Northwest winds, 60 to 90 km/h. Maximum -15.

Sunday: Becoming cloudy by midday. Northwest winds, 20 to 40 km/h. Maximum -6.

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

Terrain and Travel Advice

  • Storm slabs in motion may step down to deeper layers resulting in large avalanches.
  • As the storm slab problem worsens, the easy solution is to choose more conservative 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.