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Avalanche Forecast

Archived

Nov 16th, 2023–Nov 17th, 2023

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

Regions

Brazeau, Cirrus-Wilson, Icefields.

Short term highway closures will occur around Parker Ridge on the Icefields Parkway on Friday. No access to Panther Falls or Bridal Veil Falls will be available.

Confidence

Low

Weather Summary

Friday

A mix of sun and cloud with isolated flurries.

Precipitation: Trace.

Alpine temperature: High -2 °C.

Ridge wind southwest: 15 km/h.

Freezing level: 2000 metres.

Saturday

A mix of sun and cloud.

Alpine temperature: Low -5 °C, High -3 °C.

Ridge wind southwest: 10 km/h.

Freezing level: 1800 metres.

Terrain and Travel Advice

  • Be aware of the potential for loose avalanches in steep terrain where snow hasn't formed a slab.
  • 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.

Loose Dry

Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.