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Avalanche Forecast

Archived

Mar 26th, 2023–Mar 27th, 2023

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

Regions

Chic-Choc Mountains, Littoral, Murdochville.

Continued winds from varying directions through Monday morning, along with forecasted precipitation, will form wind slabs on multiple aspects.

Watch for newly formed wind slabs as you transition into wind affected terrain.

Confidence

Low

Avalanche Summary

No new avalanches have been observed or reported in the last 24 hours.

Thanks for contributing to the collection of this valuable data by sharing with other users on the Mountain Information Network or by writing to us directly at [email protected].

Snowpack Summary

2 to 5 cm of new snow redistributed by moderate to strong winds varying from the SW, S and SE aspects. We suspect that the melt freeze crust of variable thickness on the solar aspects and below 600m has limited the effects of these winds on the snowpack surface. Under this thin melt freeze crust, 10 to 20 cm of slightly denser snow rests on the March 18 crust. The middle of the snowpack is well consolidated, and of increasing density, interspersed with several refreezing crusts from the last few weeks.

Weather Summary

Forecast for the Chic-Chocs ridges and summits.

Synopsis: A low pressure system south of the peninsula will bring variable amounts of precipitation and variable winds for the next few days.

Sunday evening and night: Cloudy. 3 to 5 cm of snow. Winds from 25 to 35 km/h from the east- southeast. Min. -7C.

Monday: Cloudy. 4 to 7 cm of snow. Winds from 5 to 10 km/h from the northeast to southeast. Max. -5C.

Tuesday: Mostly cloudy. Trace of snow. Winds from 10 to 15 km/h from the northeast. Max. -6C.

Wednesday: Cloudy. 3 to 5 cm of snow. Winds from 5 to 10 km/h from the southwest. Max. -5C.

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

Terrain and Travel Advice

  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.
  • Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.
  • Highmark or enter your line well below ridge crests to avoid wind loaded pillows.

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.