Avalanche Forecast
Issued: Jan 1st, 2022 3:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
mkoppang,
Avalanche Canada
Strong SW winds at upper elevations are making the windslab problem more reactive. Be thinking about this as you transition into treeline and alpine terrain.
Summary
Confidence
Weather Forecast
Strong westerly winds will continue overnight as the warmer air moves into the region on Sunday. We may see 3-5cm of snow but with the winds, its unlikely to be even distribution. Temperatures will rise to more "seasonal" with daytime highs around -13C.
Avalanche Summary
One cornice collapse that triggered a sz 2 avalanche on a NE aspect at 3000m was observed on the Goat range. More wind was evident in the northern part of the forecast region.
Snowpack Summary
In alpine areas the wind is starting to leave its mark. Softer snow was found on Saturday but creative terrain selection was needed. Expect more widespread windslabs in alpine areas and even down into treeline that are gaining in size and trigger-ability. The other concern at treeline (2250m) and lower is the Dec 2nd crust that is down 60-90cm. A layer of facets over this crust is producing hard sheers and so far, the only reason it hasnt been a problem was the lack of cohesive snow overlying this layer. That may change over the next few days as windslabs develop. Be especially cautious of this interface at treeline in steeper or unsupported terrain features. Dont be afraid to pull out your shovel and check this layer out for yourself also!
Terrain and Travel
- Avoid slopes that sound hollow or drum-like.
- Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.
Problems
Wind Slabs
Becoming more widespread in Alpine areas and specific areas such as gullies and convex rolls at treeline.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Jan 2nd, 2022 3:00PM
