Dashboard Regions Weather Stations Radar Alerts Glossary
Contact About
Log In

Register for an account and never miss a forecast again!

Register

Avalanche Forecast

Archived

Dec 16th, 2017–Dec 17th, 2017

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Jasper.

A bit of new snow might improve ski quality in sheltered areas on Sunday.  Enjoy the stable conditions while they last.

Weather Forecast

10 cm possible through the day on Sunday with light to moderate SW winds and seasonal temperatures.  A return to dry conditions beginning Monday and continuing through the week accompanied by cold temperatures and light to moderate SW winds shifting to NE on Tuesday.

Snowpack Summary

The snowpack is well-settled. There are 3 crusts in the snowpack, one is located near the snowpack base (220 to 2900 m), another about 30 cm below the snow surface around treeline and a melt-freeze crust on the surface on steep solar aspects. Widespread wind affected snow exists in the alpine.

Avalanche Summary

No patrol occurred on Saturday and nothing new was reported.

Confidence

The weather pattern is stable on Sunday

Problems

Deep Persistent Slabs

Deep Persistent Slab avalanches are the release of a thick cohesive layer of hard snow (a slab), when the bond breaks between the slab and an underlying persistent weak layer deep in the snowpack. The most common persistent weak layers involved in deep, persistent slabs are depth hoar or facets surrounding a deeply buried crust. Deep Persistent Slabs are typically hard to trigger, are very destructive and dangerous due to the large mass of snow involved, and can persist for months once developed. They are often triggered from areas where the snow is shallow and weak, and are particularly difficult to forecast for and manage.