Avalanche Forecast

Archived

Nov 13th, 2020–Nov 14th, 2020

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.

There is still not enough snow below treeline for skiing, and ice climbs are not well formed. Hikers/scramblers should be aware of the very real potential for avalanches. Regular avalanche bulletins begin December 3.

Weather Forecast

Avalanche Canada's Mountain Weather Forecast is a great regional-scale resource for up-to-date weather information. Here you'll find snow amounts, freezing levels and other aspects of weather important to assessing winter conditions in the mountains.

SPOTWX is a good resource for local scale weather forecasts.

Snowpack Summary

Continued strong to extreme southwest winds paired with continued moderate snowfall along the divide make it a safe bet that wind slabs can be found in most lee/gully features. These are either sitting on the ground or the November 5 Rain Crust. There is still not enough snow to ski below treeline.

Avalanche Summary

No new avalanches have been reported, with few observations in the field.

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.