Avalanche Forecast
Issued: Nov 30th, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Persistent Slabs.
AB,
Avalanche Canada
Clearing skies and light wind will make for a nice day on Thursday. Keep in mind there is still uncertainty on how the persistent slab will react and triggering is still possible.
Summary
Confidence
Avalanche Summary
No avalanches were observed or reported on Wednesday.
Snowpack Summary
20-40cm of storm snow has accumulated over the past 7 days at treeline that has now settled into a slab overlying a mix of weak facets, surface hoar, or sun crust on steep south aspects (ie: very weak base). 40-80 cm of total snow exists at treeline throughout the region, with up to 120 cm in loaded alpine features.
Weather Summary
The light snowfall will taper with clearing skies on Thursday. Temperatures will remain around the -20 mark at the ridge and as warm as -8 in the valley. The wind is expected to be in the light range from the SW until Friday afternoon.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Fresh snow rests on a problematic persistent slab, don't let good riding lure you into complacency.
Problems
Persistent Slabs
Recent snow and wind loading has created slabs over a persistent weak layer of facets, buried sun crusts, or isolated pockets of surface hoar. This slab has been sensitive to natural and human triggering.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 1st, 2022 4:00PM
