Avalanche Forecast

Issued: Nov 21st, 2015 4:00PM

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

Avalanche Canada snow safety, Avalanche Canada

Watch for wind slabs in exposed terrain on high alpine slopes, especially where they may overly facets.

Two storms have formed most of the current snowpack, and it is a very supportive snowpack considering it is only November. Great ski conditions!

Summary

Weather Forecast

High winds tonight and then moderately cool temperatures on Sunday and Monday. Light flurries are expected tomorrow with 10 cm forecast for Monday night.

Snowpack Summary

Today's Yoho field trip found a good stable early season snowpack. Some surface hoar and facetting was noted near the ground. The alpine has extensive windslabs, with thin areas and loaded lee pockets.

Avalanche Summary

Only minor results from explosive testing during the last three days.

Confidence

Problems

Wind Slabs

An icon showing Wind Slabs

In thicker snowpack areas wind slabs have formed over previous storm snow and are less sensitive to triggering. In thinner snowpack areas these may be lying over weaker basal facets formed in late fall, and be more sensitive to skier triggering.

  • Use caution in lee areas. Recent wind loading has created wind slabs.

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

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 3

Valid until: Nov 22nd, 2015 4:00PM