Avalanche Forecast
Issued: Dec 6th, 2024 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
Parks Canada,
Avalanche Canada
A significant storm will bring heavy snowfall and strong winds over the weekend. This new snow falls on a weak layer of surface hoar, widespread avalanche activity is expected.
If you do come to Roger's Pass stick to simple terrain with no overhead hazard.
Summary
Confidence
High
Avalanche Summary
Wet loose avalanches have been running this last week from steep south and west facing slopes. Without solar input these will likely not be a significant problem this weekend.
Snowpack Summary
Surface hoar exists on the surface and will be the layer to watch when it gets buried! Steep South & West facing slopes have a sun crust at treeline and alpine elevations.
There is a dense well settled midpack without any significant weak layers.
The Nov 9 crust is down 50-100 cm. The base of the snowpack is comprised of several dense, melt-freeze rain crusts formed in October.
Treeline snowpack depths approx. 120 cm, with 40 cm at Rogers Pass (1315m).
Weather Summary
An incoming storm Friday afternoon will bring 40-50cms of new snow through the weekend with strong winds.
Tonight: Snow, 22cms. Alp low -4°C, SW winds 30 km/hr, 1100m Freezing Level (FZL).
Sat: Snow, 18cm, Alp high -4°C, SW winds, 25km/hr gusting to 45km/hr, 1400m FZL
Sun: Cloudy with flurries, Alp high -6°C, Mod SW winds. FZL 1100m
Mon: Flurries, 10cm, Alp high -10°C, Moderate SW winds, 700m FZL.
Terrain and Travel Advice
- Avoid avalanche terrain during periods of heavy snowfall.
- Make conservative terrain choices and avoid overhead hazard.
Problems
Storm Slabs
Significant snowfall and strong gusting winds are forecast for the weekend. This new snow will fall on a widespread surface hoar layer. Expect to see large natural avalanches Friday overnight and into Saturday. This storm slab will be easy for riders to trigger.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Dec 7th, 2024 4:00PM
