Archived

Avalanche Forecast

Jan 7th, 2015–Jan 8th, 2015

Alpine

3: Considerable

The avalanche danger rating in the alpine will be considerable

Treeline

3: Considerable

The avalanche danger rating at treeline will be considerable

Below Treeline

2: Moderate

The avalanche danger rating below treeline will be moderate

Alpine

3: Considerable

The avalanche danger rating in the alpine will be considerable

Treeline

3: Considerable

The avalanche danger rating at treeline will be considerable

Below Treeline

2: Moderate

The avalanche danger rating below treeline will be moderate

Alpine

3: Considerable

The avalanche danger rating in the alpine will be considerable

Treeline

3: Considerable

The avalanche danger rating at treeline will be considerable

Below Treeline

2: Moderate

The avalanche danger rating below treeline will be moderate

Regions: Jasper.

Recent storm snow has started to settle into a slab that was very reactive to skier traffic today.

Weather Forecast

A return to colder conditions with a few snow flurries and light to moderate North Easterly winds in the alpine.

Snowpack Summary

Recent storm snow has started to settle into a slab which overlies a weak layer of facets and old surface hoar. Skiing was good today but field teams were very cautious around steep terrain where it was easy to ski cut several small soft slabs.

Avalanche Summary

Last nights warm conditions has turned the recent storm snow into a touchy slab. Field teams were able to trigger several small soft slabs to size 1. Two other small slides were reported off steep rocky terrain at lower elevations (BTL).

Confidence

Avalanche Problems

Storm Slabs

Recent storm snow has started to settle into a slab which overlies a weak layer of facets and old surface hoar. Field teams were able to ski cut several small soft slabs to size 1 at treeline and below treeline elevations today.

Be careful with wind loaded pockets while approaching and climbing ice routes.Watch for whumpfing, hollow sounds, and shooting cracks.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely

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 a cornice collapse or surface slides could still possibly trigger this deep persistent weakness.

Carefully evaluate and use caution around thin snowpack areas.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2