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Avalanche Forecast

Archived

Apr 27th, 2023–Apr 28th, 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.

The weather over the next few days will be perfect for spring skiing.

Don't forget that at this time of year, conditions are highly variable, so keep using good travel habits and a thorough sunscreen application technique.

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 absence of a spring diurnal cycle on Thursday night and for the next few days means that, the much looked for corn snow, will slowly turn into wet and slow snow. In general, at all elevations, the melting continues. The northern aspects will offer the greatest snow cover and the best conditions.

More places are now without snow cover, mainly at and below treeline, where conditions are rather minimal.

The height of the snow cover is about 85 cm at mid-mountain.

Weather Summary

Forecast for the Chic-Chocs ridges and summits.

Synopsis: A ridge of high pressure is forming over the Chic-Chocs, bringing perfect weather for skiing.

Thursday evening and night: Cloudy. Light rain. Light northwest winds. Max +1C. Freezing level 1400m.

Friday: Alternating sun and clouds. Light northwest winds. Max +8C. Freezing level 1100m.

Saturday: Alternating sun and clouds. Light southeast winds. Max +6 C. Freezing level 1300 m.

Sunday: Generally cloudy. Winds from 20 to 35 km/h from the southeast. Max +3C. For more details, see the Chic-Chocs alpine forecast.

Terrain and Travel Advice

  • Caution around slopes that are exposed to cornices overhead.
  • As surface loses cohesion due to melting, loose wet avalanches become common in steeper terrain.
  • The more the snow feels like a slurpy, the more likely loose wet avalanches will become.
  • Rocks will heat up with daytime warming and may become trigger points for loose wet avalanches

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.

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.