Avalanche Forecast
Issued: Jan 14th, 2025 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs and Deep Persistent Slabs.
Parks Canada,
Avalanche Canada
We are entering a period of changing weather, which will affect avalanche conditions. Reassess your usual ski lines, as shifting winds will redistribute wind slabs to new locations. Ice climbers should avoid routes with overhead exposure, as even a small loose dry avalanche could knock you off your feet.
Summary
Confidence
Moderate
Avalanche Summary
Tuesday road patrol observed few small wind slab avalanches initiating at ridge tops and running as loose dry for short distance. Marmot Basin reported a small natural avalanche scrubbing to ground in the alpine on north aspect, suspected to be triggered out of steep rocky terrain
Snowpack Summary
The snowpack is 60-120cm in depth at tree line. 10-30cm sits atop a weakening melt freeze crust and surface hoar layer from early December. The middle of the snowpack is facetted and there is a deep persistent layer at the base of the snowpack consisting of a decomposing melt freeze crust and depth hoar.
Weather Summary
WednesdayUp to 6 cms expected by Wednesday night. Strong westerly ridgetop winds will arrive with freezing levels at valley bottom and alpine temperatures around -7 C.Thursday
Up to 10 cms expected by Thursday afternoon. Expect strong southwesterly winds with temperatures dropping throughout the day to -14 C.
Terrain and Travel Advice
- Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
- Back off if you encounter whumpfing, hollow sounds, or shooting cracks.
Problems
Wind Slabs
Many high elevation features could have wind slabs.
Aspects: All aspects.
Elevations: Alpine.
Likelihood
Expected Size
Deep Persistent Slabs
Watch for signs of slab development on top of the faceted snowpack, like whumpfs and cracks. This faceted base of the snowpack is going to be with us for a long time and pose a low probability, high consequence situation if triggered.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Jan 15th, 2025 4:00PM
