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Avalanche Forecast

Archived

Apr 5th, 2025–Apr 6th, 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 unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Chic-Choc Mountains.

Pay close attention to avalanche conditions on Sunday. Use extreme caution when choosing routes and making decisions.

Confidence

Moderate

Avalanche Summary

An avalanche was reported to us by a user:

A size 2 avalanche occurred in the forecast zone. It was triggered at a distance of around 50 m by a skier on a convexity. The skier was swept away by the flow. The avalanche was triggered on an east-facing slope at an altitude of around 900 meters.

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

Snowpack Summary

Between 10 and 15 cm of new snow will be added to an already highly variable snowpack. In alpine zones and at treeline, conditions vary from a frozen surface, to hard ice and rock, to wind-blown snow accumulation.

Below treeline, we find 15 to 25 cm of fresh snow resting on a breakable melt-freeze crust. Below, a layer of light snow (15 to 30 cm) rests on a solid crust formed on March 21. The middle of the snowpack consists of a superposition of well-consolidated snow and melt-freeze crusts.

At higher altitudes, the eastern and southeastern slopes benefit from better snow cover, while the southern, western and northern slopes are rather bald. At mid-mountain, snow depth varies between 60 and 180 cm.

Weather Summary

WEATHER FOR THE PEAKS AND SUMMITS OF THE CHIC-CHOCS

Another storm from Texas will hit us this evening, and precipitation will continue throughout the day on Sunday.

Saturday evening and night: Snow. Snow accumulation of 10 to 15 cm. Winds from the south, 50 to 70 km/h. Low -6. Freezing level at 200 m.

Sunday: Snow changing to a few rain showers in the afternoon. Accumulation of 3 to 5 cm. Winds westerly 30 to 60 km/h. High +2. Freezing level at 700 m.

Monday : Sunny. Wind northwest, 20 to 40 km/h. Maximum -5.

Tuesday: Alternating sun and clouds. Calm winds. High -2.

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

Terrain and Travel Advice

  • Closely monitor how the new snow is bonding to the crust.
  • Be alert to conditions that change with elevation, aspect, and exposure to wind.
  • Keep in mind a buried crust offers an excellent bed surface for avalanches.

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.

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.