Dashboard Regions Weather Stations Radar Alerts Glossary
Contact About
Log In

Register for an account and never miss a forecast again!

Register

Avalanche Forecast

Archived

Apr 20th, 2023–Apr 21st, 2023

Alpine
Below Threshold.
Treeline
Below Threshold.
Below Treeline
Below Threshold.
Alpine
Below Threshold.
Treeline
Below Threshold.
Below Treeline
Below Threshold.
Alpine
Below Threshold.
Treeline
Below Threshold.
Below Treeline
Below Threshold.

Regions

Chic-Choc Mountains, Littoral, Murdochville.

Overnight freezing and for part of the day Friday promotes the formation of a crust at the surface, which will make it difficult to travel in the mountains.

Don't forget your crampons and ice axes!

Confidence

High

Avalanche Summary

No new avalanche has been observed or reported.

Thanks for contributing to the collection of this valuable data by sharing it with other users on the Mountain Information Network or by writing to us directly at [email protected].

Snowpack Summary

The return of the freezing level at the valley bottom during the night and for part of the day will form a melt-freeze crust on the surface, which may make travel conditions difficult.

In general, the rapid melting of the snowpack in recent days has exposed the ground, primarily at and below the treeline. Below the treeline, snow conditions are now minimal.Snowpack heights range from 10 cm (valley) to 105 cm (mid-mountain).

Weather Summary

Forecast for the Chic-Chocs ridges and summits.

Synopsis: A ridge of high pressure is gradually moving over the region to bring generally clear weather for the next few days.Thursday evening and night: Partly cloudy, no precipitation, northeasterly winds 20 to 30 km/h, minimum -4 C, freezing level at valley bottom.

Friday: Increasing cloudiness, possibility of light precipitation at the end of the day, northerly winds 10 to 20 km/h, maximum +3 C, freezing level at 1000 m.

Saturday: Sunny, no precipitation, southeasterly winds 10 to 20 km/h, maximum +6 C, freezing level at 2500 m.

Sunday: A mix of sun and cloud, no precipitation, southeasterly winds 30 to 40 km/h, maximum +4 C, freezing level at 2300 m.For more details, see the Chic-Chocs alpine forecast.

Terrain and Travel Advice

  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.
  • Caution around slopes that are exposed to cornices overhead.

Problems

Cornices

Cornice Fall is the release of an overhanging mass of snow that forms as the wind moves snow over a sharp terrain feature, such as a ridge, and deposits snow on the downwind (leeward) side. Cornices range in size from small wind drifts of soft snow to large overhangs of hard snow that are 30 feet (10 meters) or taller. They can break off the terrain suddenly and pull back onto the ridge top and catch people by surprise even on the flat ground above the slope. Even small cornices can have enough mass to be destructive and deadly. Cornice Fall can entrain loose surface snow or trigger slab avalanches.