Dashboard Regions Weather Stations Radar Alerts Glossary
Contact About
Log In

Register for an account and never miss a forecast again!

Register

Avalanche Forecast

Archived

Dec 31st, 2012–Jan 1st, 2013

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

Kootenay Boundary.

Persistent slabs may be found in the Rossland Range. Check the Forecast Details tab for more information.

Confidence

Fair - Timing or intensity of solar radiation is uncertain

Weather Forecast

Tuesday: Moderate N winds. Alpine temperature near -4. No precipitation. Wednesday: Light W winds. Alpine temperature near -2. No precipitation.Thursday: Light S winds. Alpine temperature near -1. No precipitation.

Avalanche Summary

Small skier-triggered wind slabs and loose moist avalanches have been reported.

Snowpack Summary

Wind slabs may be found behind terrain breaks such as ridges, ribs and gully walls. Slopes receiving direct sun may now swing between exhibiting moist snow and a frozen sun crust. A generally settled upper snowpack overlies the late November surface hoar, buried down 115-130 cm. This layer seems particularly reactive in the Rossland Range, where an avalanche a week ago, snowpack test results and a whumpf on Sunday demonstrate its potential reactivity, especially from thin snowpack areas. A deeply buried crust/facet layer near the base of the snowpack is considered dormant. Although unlikely, there is a lingering possibility of triggering a deep avalanche on this layer.

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.