Avalanche Forecast
Issued: Jan 7th, 2025 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs and Persistent Slabs.
Avalanche Canada,
Avalanche Canada
Be especially careful as you transition into wind-affected terrain.Buried weak layers may become reactive with the added weight of new snow.
Summary
Confidence
Moderate
Avalanche Summary
On Monday, a few small loose and slab avalanches were reported in the Babines. These were likely triggered by sun exposure and warming, as they all occurred on south-facing slopes. During periods of sun on Wednesday may see similar avalanches occur.
Since the middle of last week, no other avalanches have been reported, though recent observations have been very limited.
We expect the likelihood of triggering avalanches to rise due to the recent snow and wind.
Snowpack Summary
Certain parts of the region may have received up to 25 cm of snow over the last two days, while other areas saw only 10 to 15 cm. These lower snowfall areas may only experience moderate avalanche danger.
The new snow may cover a thin sun crust on south and westerly slopes, and otherwise add to the 10 to 20 cm of older storm snow elsewhere.
We expect reactive new wind slabs on leeward slopes brought on by the new snow and wind.
A noticeable persistent weak layer is buried 40 to 80 cm. This layer is made of weak facets overlying a crust. With additional new snow and wind-loading, this layer may become reactive.
The remainder of the snowpack is well-settled and bonded.
Weather Summary
Tuesday Night
Cloudy with 1 to 10 cm of snow, possible rain below 1300 m. Highest precipitation amounts are for the Kispoix region. 40 to 50 km/h west ridgetop wind. Treeline temperature 0 °C.
Wednesday
Mix of sun and cloud. 40 to 50 km/h west ridgetop wind. Treeline temperature -1 °C.
Thursday
Cloudy with 5 to 15 cm of snow. 50 to 60 km/h south ridgetop wind. Treeline temperature -2 °C.
Friday
Cloudy with 0 to 5 cm of snow. 50 km/h west ridgetop wind. Treeline temperature -3 °C.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Seek out wind sheltered terrain below treeline where you can avoid wind slabs and find great riding.
- Be aware of the potential for large avalanches due to buried weak layers.
- Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
- Use ridges or ribs to avoid areas of wind-loaded snow.
Problems
Wind Slabs
New snow and extreme ridgetop winds are expected to build wind slabs. Watch for blowing snow and avoid leeward slopes.
Aspects: North, North East, East, South East, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Persistent Slabs
A widespread crust with weak crystals overtop is buried 40-80 cm deep. While this layer exists on all aspects, it's most likely to be triggered on wind-loaded slopes.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Jan 8th, 2025 4:00PM
