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Avalanche Forecast

Archived

Mar 27th, 2024–Mar 29th, 2024

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

Regions

Chic-Choc Mountains.

👉 CAUTION - BULLETIN VALID FOR THURSDAY, MARCH 28 AND FRIDAY, MARCH 29 👈

The snowpack will continue to become saturated over the next few days and increasingly susceptible to triggering. It is best to avoid avalanche terrain until the snowpack refreezes.

Confidence

Moderate

Avalanche Summary

An accident involving snowmobilers occurred on Tuesday, March 26, near La Martre, just outside our forecast area. For more details, please consult the MIN report.

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

Snowpack Summary

The top 25 to 30 cm of the snowpack is moist or wet. The rainfall still to come will help to make the upper part of the snowpack isothermal, allowing water to percolate down to the underlying crust.

There is a crust of 4 cm thick down 40 cm from the surface. Beneath this crust, there is 20 cm of dry snow resting on a layer of ice that extends to the base of the snowpack.

Last weekend's wind loaded the south and southeast slopes with snow in the alpine and at treeline.

Weather Summary

Synopsis: Warm temperatures and rainfall will continue for the next few days. Freezing levels will remain above 2,000m until Saturday morning. Some models see snow showers for the Easter vacation.

Wednesday evening and night: Rain. 10 mm of rain. Wind southwest, 30-40 km/h. Low +1.

Thursday: Cloudy. 2 to 3 mm of rain during the day. Light wind, variable directions. High +4. 15 mm rain overnight.

Friday: Cloudy. Wind northwest, 20 to 40 km/h. High +2. Chance of 30 cm of snow overnight.

Saturday: Cloudy. 10 cm. Moderate northwest wind, 40 to 60 km/h. High -3.

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

Terrain and Travel Advice

  • Keep in mind that wet avalanches can be destructive due to their high density.
  • Avoid avalanche terrain during periods of heavy rain.

Problems

Wet Slabs

Wet Slab avalanches are the release of a cohesive layer of snow (a slab) that is generally moist or wet when the flow of liquid water weakens the bond between the slab and the surface below (snow or ground). They often occur during prolonged warming events and/or rain-on-snow events. Wet Slabs can be very unpredictable and destructive.

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.