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Avalanche Forecast

Archived

Nov 10th, 2023–Nov 11th, 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 Banff area. Saturday's storm will deliver greater snow amounts to the West and North.

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 with treeline snow depths in the 15-30cm range, and snow depths up to 40-60 cm in wind loaded lee areas.

Weather Summary

Saturday looks to be stormy with up to 35 cm along the divide and along Hwy 93 N. In the Banff area, it will mainly be windy with up to 5 cm forecasted. The winds will be strong to extreme SW winds throughout the storm.

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.