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Avalanche Forecast

Archived

Feb 10th, 2025–Feb 11th, 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

Banff Yoho Kootenay, Banff, East Side 93N, Kootenay, Lake Louise, LLSA, Sunshine, West Side 93N, Field.

We are pressed under a cold Arctic airmass with rock bottom temperatures. Consider the risk of prolonged exposure in the event of even a small incident and plan accordingly.

Confidence

Moderate

Avalanche Summary

No avalanches were observed or reported today.

Snowpack Summary

Storm snow from last week has been redistributed into wind slabs, which now sit on top of the Jan 30 interface. This layer is active, with recent avalanche activity. The mid-pack is generally weak with facets while depth hoar over a crust forms an even weaker base. The snowpack is the weakest in eastern areas where snow depths are low. In these areas the basal weaknesses should be carefully considered.

Weather Summary

Tomorrow's temperatures will remain as cold as today, with only a gradual warming trend through the coming week. The wind will stay light from the North, maintaining the influence of the Arctic air mass. No snow is expected, though some cloud cover may develop in the afternoon.

Terrain and Travel Advice

  • Be careful as you transition into wind-affected terrain.
  • Closely monitor how the new snow is bonding to the old surface.
  • Be mindful that deep instabilities are still present in the snowpack.

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.