Avalanche Forecast
Issued: Dec 14th, 2024 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
Avalanche Canada,
Avalanche Canada
New snow may sit on surface hoar.
Monitor how the new snow is bonding to the old by watching for shooting cracks and natural avalanches.
Summary
Confidence
Moderate
Avalanche Summary
It's expected that rider-triggered avalanches occured on Saturday. However, we have no reports of avalanches yet.
Natural and skier-triggered dry loose avalanches up to size 1 continue to be reported from steep terrain where the surface snow hasn’t formed slab properties or bonded to the underlying crust.
2 natural cornice falls were reported on Thursday. Neither of these cornices triggered a slab on the slope below.
Snowpack Summary
Up to 15 cm of new snow fell on Saturday This was accompanied by moderate to strong southwest wind forming larger deposits on north and east aspects. In sheltered terrain, this new snow could overlie surface hoar.
A layer of surface hoar and/or crust can be found down 20 to 40 cm. The extent of this crust is uncertain in the Selkirks. Where this crust is thin or not present a layer of surface hoar may be found.
The mid and lower snowpack is well-settled, dense, and generally strong. Treeline snow depths range from 100 to 150 cm.
Weather Summary
Saturday Night
Cloudy with 1 to 2 cm of snow. 15 to 40 km/h southwest ridgetop wind. Treeline temperature -6 °C.
Sunday
Cloudy with 1 cm of snow in the morning and a mix of sun and cloud in the afternoon. 20 to 40 km/h west ridgetop wind. Treeline temperature -8 °C.
Monday
Cloudy with 5 to 10 cm of snow. 20 to 30 km/h south ridgetop wind. Treeline temperature -6 °C.
Tuesday
Sunny. 20 to 30 km/h south ridgetop wind. Treeline temperature -6 °C.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Continue to make conservative terrain choices while the storm snow settles and stabilizes.
- Be aware of the potential for larger than expected storm slabs due to buried surface hoar.
- Be aware of the potential for loose avalanches in steep terrain where snow hasn't formed a slab.
Problems
Storm Slabs
The new snow needs time to settle and bond to the underlying layers.
Storm slabs will be most reactive where they overlie surface hoar.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Dec 15th, 2024 4:00PM
