Archived

Avalanche Forecast

Dec 27th, 2014–Dec 28th, 2014

Alpine

2: Moderate

The avalanche danger rating in the alpine will be moderate

Treeline

2: Moderate

The avalanche danger rating at treeline will be moderate

Below Treeline

1: Low

The avalanche danger rating below treeline will be low

Alpine

2: Moderate

The avalanche danger rating in the alpine will be moderate

Treeline

1: Low

The avalanche danger rating at treeline will be low

Below Treeline

1: Low

The avalanche danger rating below treeline will be low

Alpine

2: Moderate

The avalanche danger rating in the alpine will be moderate

Treeline

1: Low

The avalanche danger rating at treeline will be low

Below Treeline

1: Low

The avalanche danger rating below treeline will be low

Regions: Jasper.

Typical Rockies snowpack with better than typical travel and good turns in north and east TL aspects.

Weather Forecast

Cold with only a light teasing of new snow expected to fall in the southern forecast area.

Snowpack Summary

Consistent winds, just at transport speeds are forming minor new wind slabs by reverse loading S-SE aspects and are most visible in cross-loaded gully features in the southern forecast area. Shallow low density upper snowpack over a strong mid-pack sitting on a weaker facet base. Typical Rockies snowpack we've learned to love! Enjoy!

Avalanche Summary

No new avalanche activity reported in forecast area

Confidence

Avalanche Problems

Wind Slabs

Northerly winds reverse loading cross-loaded gulley features. Previous wind slab from SW winds appear to be well bonded to snow below.

Avoid travelling in areas that have been reverse loaded by winds.Be cautious as you transition into wind affected terrain.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2

Deep Persistent Slabs

This weak layer exists below a strong mid-pack at treeline and sub-alpine elevations. Large loads such as surface slides or cornice collapse could trigger this deep persistent weakness.

Carefully evaluate and use caution around thin snowpack areas.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3