Avalanche Forecast

Archived

Sep 14th, 2017–Sep 15th, 2017

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

Banff Yoho Kootenay.

The first snowfall of the 2017-18 season has arrived. Watch for sluffing and small wind slabs in the alpine over the next month as snow begins to accumulate in steep North facing gullies and on the leeward sides of ridges.

Weather Forecast

Snowpack Summary

The first snowfall of the 2017-18 season has arrived!

Avalanche Summary

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.