Avalanche Forecast

Issued: Nov 29th, 2018 4:00PM

The alpine rating is moderate, the treeline rating is low, and the below treeline rating is low. Known problems include Deep Persistent Slabs.

snow safety, Parks Canada

Little Yoho.

Ice climbs in Field are in good shape, but the valley bottoms are still a little thin for skiing: ~30 cm of snowpack at Emerald Lake and ~ 20 cm in Field.

Summary

Weather Forecast

Slowly cooling temps and maybe some Alberta outflow on Saturday. Colder still on Saturday (teens), but not viciously so. There should be some flurries associated with the incoming cold air Saturday and Sunday.

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

No new avalanches reported.

Confidence

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.

Whumpfing is direct evidence of a buried instability.If you are increasing your exposure to avalanche terrain, do it gradually as you gather information.

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

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 2

Valid until: Nov 30th, 2018 4:00PM