Avalanche Forecast

Issued: Feb 24th, 2023 2:00PM

The alpine rating is moderate, the treeline rating is low, and the below treeline rating is low. Known problems include Wind Slabs and Persistent Slabs.

Avalanche Canada jfmichaud, Avalanche Canada

Email

With spring break just around the corner, there may be more people on the mountain.

If you are going into avalanche terrain, and especially complex and alpine terrain, it is important to have safe travel practices for your safety and the safety of others.

Summary

Confidence

High

Avalanche Summary

No new avalanche has been observed or reported in the last 24 hours.

Thanks for contributing to the collection of this valuable data by sharing with other users on the Mountain Information Network or by writing to us directly at bulletin@avalanchequebec.ca.

Snowpack Summary

In the alpine and at the treeline, the wind has redistributed the available snow, exposing the crust or ice and creating wind slabs of varying density on the leeward slopes and in the laterally loaded areas. All of this rests on a snowpack with a steady increase in density. The January 18 crust is buried under sixty to one hundred centimetres of snow, and facetted grains are still found on its surface.Below 600m, the crust is very crumbly and becomes less and less noticeable with altitude. The best skiing is therefore in places protected from the wind, above 600m, where the snow has been preserved from the weather events of the last few days (thaw and wind). 15 to 20 cm of powdery snow awaits you there, resting on a crumbly crust of varying thickness. In general, the height of the snow cover varies from 70 to 90 cm in the valley to 100 to 150 cm in the middle mountains.

Weather Summary

Forecast for the Chic-Chocs ridges and summits.

Synopsis: Passage of a weak trough, leaving a few flakes on Saturday morning. Weather fine, but cold. Friday evening and night: Partly cloudy. Light snow. Wind northwest, 40 to 60 km/h. Low -27. Saturday: Alternating sun and clouds. Light snow possible in the morning. Wind 30 to 50 km/h from the northwest. Max. -22 C.Sunday: Alternating sun and clouds. Wind 5 to 15 km/h from the southwest. High -14.Monday: Sunny. Wind northwest, 10 to 20 km/h. High -11. For more details, see the Chic-Chocs alpine forecast.

Terrain and Travel Advice

  • Carefully evaluate steep lines for wind slabs.
  • Small avalanches can have serious consequences in extreme terrain. Carefully evaluate your line for wind slab hazard before you commit to it.

Problems

Wind Slabs

An icon showing Wind Slabs

Snow transport has been observed on peaks and ridges of mont Albert on Thursday. In the alpine and open areas at and below treeline, these slabs may rest on the January 18 crust, increasing the likelihood of being triggered by a skier.

Aspects: North East, East, South East, South.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 2

Persistent Slabs

An icon showing Persistent Slabs

A slab has formed on top of the facets on crust interface of the January 18th, which is now buried at a depth of 60 to 100 cm. Although the probability of triggering an avalanche is very low, this interface exists, and could, in isolated places, react to skier traffic. An avalanche on the surface could also step down to the deeper layer.

Aspects: North, North East, East, South East.

Elevations: Treeline.

Likelihood

Unlikely

Expected Size

1 - 2

Valid until: Feb 25th, 2023 3:00PM