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Avalanche Forecast

Archived

Nov 8th, 2023–Nov 13th, 2023

Alpine
Early Season
Treeline
Below Threshold.
Below Treeline
Below Threshold.
Alpine
Early Season
Treeline
Below Threshold.
Below Treeline
Below Threshold.
Alpine
Early Season
Treeline
Below Threshold.
Below Treeline
Below Threshold.

Regions

Banff.

Early-season conditions prevail in the high mountains. Watch out for small wind slabs in the alpine, as they can have serious consequences if you are hit in steep or exposed terrain.

Confidence

Low

Avalanche Summary

Although most areas are below threshold for avalanches, there have been reports of small windslabs and loose dry avalanches from steep windloaded alpine terrain in the last week.

Snowpack Summary

Early season conditions exist in the high alpine, anywhere from 60-80cm of snow can be expected. This tapers rapidly with elevation, treeline snow depths are in the 15-30cm range.

Weather Summary

Thursday looks to be mainly sunny with winds easing to light from the west. A system is moving in on Friday bringing light snow and increased W winds. Saturday looks to be stormy with ~ 5 cm along the divide, less to the east and strong to extreme SW winds. See the Mountain Weather Forecast for more details.

Terrain and Travel Advice

  • Avoid exposure to overhead avalanche terrain during periods of heavy loading from new snow, wind or rain.

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.