Archived

Avalanche Forecast

Dec 14th, 2017–Dec 15th, 2017

Alpine

1: Low

The avalanche danger rating in the alpine will be low

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

1: Low

The avalanche danger rating in the alpine will be low

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

1: Low

The avalanche danger rating in the alpine will be low

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.

Minimal avalanche activity has inspired confidence in the snowpack.

Weather Forecast

Alpine temperatures will cool as the inversion conditions come to an end.Â Expecting to see overcast conditions with flurries that might amount to 8 cm by Sunday.Â Westerly winds will be light but will build on Sunday.

Snowpack Summary

There is a well settled snowpack in most locations. Widespread wind effected snow in the alpine with minimal ski penetration. The Halloween, Oct. 31 crust sits in the lower half of the snowpack with faceted crystals above and below; found between 2200 - 2900m.

Avalanche Summary

An older (+48hr) slab avalanche was reported in the Icefields are on a South aspect at 2850 m that started 20 cm deep and then stepped down to a crust 30 cm below.Â The slope angle was ~40 deg. and the size was 2.5.Â It was likely a solar trigger avalanche.

Confidence

The weather pattern is stable on Friday

Avalanche Problems

Deep Persistent Slabs

Heavy loads , like natural cornice releases might trigger this deep instability.

Pay attention to overhead hazards like cornices which could trigger the deep persistent slab.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely

Expected Size: 2 - 3