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Avalanche Forecast

Archived

Apr 5th, 2024–Apr 30th, 2024

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Below Threshold.
Treeline
Below Threshold.
Below Treeline
Below Threshold.
Alpine
Below Threshold.
Treeline
Below Threshold.
Below Treeline
Below Threshold.

Regions

Chic-Choc Mountains.

👉 ATTENTION - LAST FORECAST FOR THE SEASON 👈

Spring-like conditions starting on Sunday will quickly deteriorate what remains of the snowpack, which is already fairly thin for the period. Spring skiing may be short-lived.

Confidence

Moderate

Avalanche Summary

No new avalanche activity has been observed or reported.

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

Snowpack Summary

In the alpine, the still dry snow present at the surface on the northern and eastern slopes was moved towards the western slopes by strong Easterly winds and rests on the March 31 crust. At lower elevation (below 500 m), the snow on the surface has been transformed by the sun and the heat of the day and refreezes at night. Just below, a solid loaf of crusts 20 to 30 cm thick supports the weight of a person. Deeper, the snow cover is generally moist, even wet, right down to the ground.

Weather Summary

Synopsis : The Cape Hatteras storm will give way to a ridge of high pressure, which will promote clearing for Sunday. Thereafter, the sun will be out for a good part of the week !

Friday evening and night: Snow, 1 à 3 cm, Northeasterly winds 30 to 40 km/h, minimum -4 C, freezing level at valley bottom.

Saturday: Snow, 1 to 3 cm, Northeasterly winds 20 to 30 km/h, maximum -4 C, freezing level at 300 m.

Sunday: Clearing, no precipitation, Northeasterly winds 10 to 20 km/h, maximum +2 C, freezing level at 1000 m.

Monday: Sunny, no precipitation, Northwesterly winds 10 to 20 km/h, maximum +5 C, freezing level at 1500 m.

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

Terrain and Travel Advice

  • Carefully evaluate steep lines for wind slabs.
  • Approach lee and cross-loaded slopes with caution.
  • Adjust your travel plans accordingly to the changing conditions of elevation and time of day.

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.