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Avalanche Forecast

Archived

Feb 29th, 2024–Mar 1st, 2024

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Chic-Choc Mountains.

A significant refreezing crust is forming at all altitudes and getting around is difficult. The light snow precipitations received may have formed isolated reactive wind slabs in the alpine and at the treeline.

Confidence

Moderate

Avalanche Summary

No new avalanches reported or observed.

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

Snowpack Summary

In the few places protected from the wind, 3 to 7 cm of new snow has fallen. This snow lies on top of wet snow, which will form an increasingly firm crust under the influence of cold temperatures. The strong to extreme southwesterly and then westerly winds greatly affected the alpine and treeline areas.

The middle of the snowpack is well consolidated, resting on the combo of facetted grains and crust of December 30.

The mid-mountain snowpack has been reduced from 93 cm to 85 cm by the rain and thaw.

Weather Summary

Synopsis: Strong westerly winds and cold temperatures persist on Friday. Warming from the weekend.

Thursday evening and night: Light snow, 1 to 3 cm. Wind 30 to 50 km/h from the northwest. Low -24.

Friday: Clearing in the afternoon. Wind west 30 to 50 km/h. Maximum -18C.

Saturday: Alternating sun and clouds. Wind southwest 20 to 40 km/h. High +1. Freezing level at 600 m.

Sunday: Cloudy. Wind southwest 20 to 40 km/h. High +1. Freezing level at 700 m.

For more details, check out the most recent alpine weather forecast.

Terrain and Travel Advice

  • Be especially cautious as you transition into wind affected terrain.
  • Wind slabs may be poorly bonded to the underlying crust.

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.