Archived

Avalanche Forecast

Nov 30th, 2018–Dec 1st, 2018

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: Little Yoho.

There was a skier triggered avalanche near the Lake Louise ski hill Nov 30. We still don't have very good information from this zone due to access.

Weather Forecast

Slowly cooling temps and maybe some cold outflow (low teens) on Saturday, and Sunday. There should be some flurries associated with outflowing air.

Snowpack Summary

The October 26 crust is found ~10-30 cm above the ground. A generally faceted snowpack averages 40-85 cm at 2200m across the region. 60-70 cm of snow at Takakkaw Falls parking area today. Good looking snow but still a bit weedy.

Avalanche Summary

The Lake Louise Ski area had a slackcountry remote triggered size 2 avalanche. It occurred near treeline and indicates the need for consideration of the deeper weaknesses despite the generally improving conditions.

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 & facet layer. Avoid steep terrain where a stiffer, more cohesive slab exists over the weaker snow at the base of the snowpack.

If you are increasing your exposure to avalanche terrain, do it gradually as you gather information.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