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Avalanche Forecast

Archived

Dec 2nd, 2022–Dec 3rd, 2022

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.

Regions

Chic-Choc Mountains.

Some new snow above the widespread melt-freeze crust keeps the avalanche danger rating low, but also limited and difficult travel and skiing conditions.

The rain on Saturday will not improve the conditions in the mountains at all.

Confidence

Moderate

Avalanche Summary

No new avalanche activity has been observed or reported. Please share your observations at [email protected], or with the Mountain Information Network.

Snowpack Summary

About 5 to 10 cm of new snow covers the widespread melt-freeze crust 1 to 4 cm thick present at all aspects and elevations. Isolated pockets in localized leeward depressions can reach 15 to 20 cm in places.

At the start of the season, the height of the snowpack varies from 30 to 50 cm in general and up to 70 to 80 cm in the areas of maximum accumulation. The conditions remain marginal, with barely enough snow to cover the obstacles and a crust that makes travel difficult and perilous.

Weather Summary

Forecast for the Chic-Chocs ridges and summitsA Colorado low will affect the Chic-Chocs with snow changing to rain on Saturday.This evening and tonight: Becoming cloudy, south-westerly winds 60 to 80 km/h, low of -8 C and freezing level at valley bottom.

Saturday: Snow beginning in the morning (3-5 cm) then changing to rain in the afternoon (10-15 mm), south-westerly winds 90 to100 km/h, high of +5 C and freezing level at 1500 m.

Sunday: A mix of sun and clouds, 2-3 cm of snow, westerly winds 40 to 50 km/h, high of -5 C and freezing level back to valley bottom.

Monday: Sunny, south-westerly winds 50 to 80 km/h, high of -5 C and freezing level at valley bottom.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Wind slabs may be poorly bonded to the underlying crust.
  • Be carefull around freshly wind loaded features.

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.