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Avalanche Forecast

Archived

Jan 20th, 2025–Jan 21st, 2025

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

Regions

East Kakwa, Tumbler.

Wind slabs are the main concern with wind loading in shallow rocky start zones are the most likely to produce an unexpected avalanche.

Confidence

Moderate

Avalanche Summary

No new avalanche activity has been reported in the past few days.

Keep posting your observations to the Mountain Information Network!

Snowpack Summary

Surface snow is likely predominantly wind-affected, with recent light snow and elevated wind.

Limited soft snow may be found on the surface in more sheltered areas above 1500 m.

The snowpack in this region is otherwise shallow with the middle and base mostly made up of weak, sugary faceted crystals along with a crust near the base of the snowpack.

Weather Summary

Monday Night

Mainly cloudy. 30 to 50 km/h west and northwest ridgetop wind. Treeline high temperature -10 °C.

Tuesday

Mostly cloudy. 30 to 60 km/h northwest ridgetop wind. Treeline high temperature -7 °C.

Wednesday

Mainly cloudy with isolated flurries. 20 to 40 km/h west and northwest ridgetop wind. Treeline high temperature -8 °C.

Thursday

Mainly cloudy. 30 to 50 km/h northwest ridgetop wind. Treeline high temperature -4 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid shallow snowpack areas, rocky outcrops, and steep terrain where triggering is most likely.
  • Watch for areas of hard wind slab on alpine 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.