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Avalanche Forecast

Archived

Mar 6th, 2025–Mar 7th, 2025

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 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, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

Chic-Choc Mountains.

A lot more rain, sometimes turning to heavy snow, is forecast for Friday. This will put considerable pressure on the snowpack, and it would be wise to avoid avalanche terrain until Saturday.

Confidence

Low

Avalanche Summary

Few observations in the field today. Le Couloir reported an avalanche of wet loose snow : https://www.facebook.com/share/r/15tZh46rBH/

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

Snowpack Summary

Moist snow on the surface, which could form a crust before the snowfall forecast for Friday afternoon. Snow cover in the alpine has probably diminished considerably due to extreme southerly winds, rain and high temperatures.

The middle of the snowpack is well consolidated, resting on a layer of rounding facets. The height of the snowpack currently varies from 100 cm to 200 cm.

Weather Summary

WEATHER FOR THE CRESTS AND SUMMITS OF CHIC-CHOCS

From Friday afternoon to Saturday morning, heavy snow is expected, followed by persistent blowing snow until Saturday night.

Thursday evening and night: Rainfall 5 to 10 mm. Southeast winds 5 to 15 km/h. Low +1 °C.

Friday: Rain turning to snow in the early afternoon. Risk of freezing rain in the morning. Accumulations of 5 to 7 mm of rain and 10 to 15 cm of snow. Westerly winds of 30 to 50 km/h. Temperatures stable near 0°C during the day, dropping to -15°C overnight on Friday.

Saturday: Intermittent snow. Accumulation of 2 to 5 cm of snow. Winds from the west at 40 to 60 km/h. Maximum of -14 °C.

Sunday: Alternating sun and clouds. Northwest winds 30 to 50 km/h. Maximum -12 °C.

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

Terrain and Travel Advice

  • Avoid avalanche terrain during periods of heavy rain.
  • Keep in mind that the high density of wet avalanches can make them destructive.

Problems

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.

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.