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Avalanche Forecast

Archived

Jan 20th, 2023–Jan 21st, 2023

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

Regions

Akamina, Crowsnest North, Crowsnest South.

Keep up the safe travel practices! Normal cautions will help you manage any lingering pockets of unstable snow.

Confidence

High

Avalanche Summary

We haven't received reports of avalanche observations since Monday, when thin wind slabs were triggered by riders.

Please continue to share any observations or photos on the Mountain Information Network.

Snowpack Summary

A dusting of snow overlies a melt-freeze crust up to 2100 m. Wind-affected snow prevails above 2100 m, with thin, old wind slabs in lee terrain features from recent southwest wind.

The mid-pack continues to settle and consolidate. Facets exist near the base of the snowpack.

Weather Summary

Friday night

Mostly clear skies with no precipitation. Light to moderate southwest winds, more northerly with elevation.

Saturday

Partly cloudy with increasing cloud and flurries beginning in the evening. Moderate to strong southwest winds, increasing over the day. Treeline high temperatures around -5.

Sunday

Cloudy with scattered flurries bringing up to about 5 cm of new snow, including overnight amounts. Light to moderate northwest winds. Treeline high temperatures around -4.

Monday

Mainly cloudy with isolated flurries in the afternoon. Light to moderate southwest or west winds, potentially strong in the alpine. Treeline high temperatures around -7.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Small avalanches can have serious consequences in extreme terrain. Carefully evaluate your line for wind slab hazard before you commit to it.
  • Recent wind has varied in direction so watch for wind slabs on all aspects.
  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.

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.