Avalanche Forecast

Issued: Jan 3rd, 2013 9:25AM

The alpine rating is moderate, the treeline rating is low, and the below treeline rating is low. Known problems include Wind Slabs.

Avalanche Canada slemieux, Avalanche Canada

Summary

Confidence

Good

Weather Forecast

Thursday night and Friday:  The ridge of high pressure that has been blocking the weather patterns is beginning to weaken and an upper trough will move in during the day. Cloudy skies and light flurries are expected for the day with the strong winds from the Northwest and cooler more seasonal temperatures in the alpine (-8 C).Saturday: A surface ridge centered over the kootenay region should bring a bit of a clearing with few to scattered skies and valley clouds and increasing clouds during the day, no precipitation forecasted and moderate Westerly winds. Temperatures could warm up slightly in the alpine.Sunday: A front should move across the region bringing light precipitation with light Southwesterly winds and cooler temperatures.

Avalanche Summary

Some sluffing  (loose dry avalanches) in steep terrain was triggered by cornice fall and skiers.

Snowpack Summary

A generally settled upper snowpack overlies two or more buried crusts. The December crust is found 70-140 cm below the surface and the November crust/facet layer is near the base of the snowpack. Recent snowpack tests have shown little reactivity on these layers, apart from in the Flathead Range near Fernie, where there is a lingering possibility of triggering a deep avalanche in specific thin, rocky snowpack areas. Check out the forecaster's blog for more discussion on this.

Problems

Wind Slabs

An icon showing Wind Slabs
New windslabs could be formed below ridgetop and on crossloaded features with forecasted strong West winds.
Be cautious as you transition into wind affected terrain.>Keep avoiding exposure to terrain traps where the consequences of a small avalanche could be serious.>

Aspects: North, North East, East, South East, South.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 4

Valid until: Jan 4th, 2013 2:00PM