Avalanche Forecast

Archived

Nov 22nd, 2019–Nov 23rd, 2019

Alpine

Below Threshold.

Treeline

Below Threshold.

Below Treeline

Below Threshold.

Alpine

Below Threshold.

Treeline

Below Threshold.

Below Treeline

Below Threshold.

Alpine

Below Threshold.

Treeline

Below Threshold.

Below Treeline

Below Threshold.

Regions

Waterton Lakes.

The Akamina Parkway is currently closed to the public for construction work, but will re-open to foot traffic in early December. Regular Avalanche Forecasts will begin on December 2nd.

Weather Forecast

A current overall weather forecast can be found at: https://avalanche.ca/weather/forecast (now with alberta specific information!!), and local forecasts can be found at https://spotwx.com

Snowpack Summary

At upper elevations in the front ranges 20-30cms of recent snow has been moved by strong southwest winds, and now sits on bare ground or remnants of the September snowfall.

Avalanche Summary

Several size 1-1.5 natural wind slab avalanches have been observed on lee areas at all elevations including below treeline in places where September snow remains.

Confidence

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.