Archived

Avalanche Forecast

Nov 29th, 2018–Nov 30th, 2018

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

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: Banff Yoho Kootenay.

Weather Forecast

Slowly cooling temps and maybe some outflow on Saturday. Colder still on Saturday (teens), but not viciously so.

Snowpack Summary

The October 26 crust is found ~10-30 cm above the ground. A generally facetted snowpack averages 40-85 cm at 2200m across the region.

Avalanche Summary

Puzzle Peak had a large rockfall event. Glide-cracks on the top indicate the possibility of further rockfall. Outside our expertise, but maybe avoid the toe for a while.

Confidence

Avalanche Problems

Deep Persistent Slabs

Within the past week, there have been occasional reports of skier remote and explosive triggered slabs on the Oct 26 crust and facet layer. Avoid steep terrain where a stiffer, more cohesive slab exists over the weak snow at the base of the snowpack.

Whumpfing is direct evidence of a buried instability.

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2