Avalanche Forecast
Issued: Dec 22nd, 2023 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Persistent Slabs and Storm Slabs.
trettie,
Avalanche Canada
Continuously assess conditions as you move through terrain. Watch for signs of instability.
New snow amounts vary through the region, there's uncertainty in reactivity of surface hoar.
Summary
Confidence
Avalanche Summary
Poor visibility has limited observations. We have received reports of debris from large avalanches in run outs at treeline. Likely storm slabs starting in the alpine.
If you go out in the backcountry, please consider sharing your observations on the Mountain Information Network (MIN).
Snowpack Summary
30 to 70 cm of recent dense storm snow has buried a variety of previously wind-affected surfaces at upper elevations. Below treeline the snowpack will have a new surface crust with moist snow below.
A concerning surface hoar layer is down roughly 40 to 100 cm at treeline and above.
The mid snowpack likely contains multiple frozen crusts, while the lower snowpack is generally faceted. Average snowpack depths at treeline vary significantly.
Weather Summary
Friday Night
Partially cloudy with no new snow expected, west alpine wind 20 to 50 km/h, freezing level falling to valley bottom.
Saturday
Mostly sunny with no new snow expected, southwest alpine wind 25 to 40 km/h, treeline temperature -3°C.
Sunday
A mix of sun and cloud with no new snow expected, southwest alpine wind 25 to 40 km/h, treeline temperature -3°C.
Monday
A mix of sun and cloud with no new snow expected, southwest alpine wind 25 to 40 km/h, treeline temperature -3°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.
- Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
- Be carefull around freshly wind loaded features.
Problems
Persistent Slabs
Buried surface hoar may still be rider triggerable.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Storm Slabs
Storm slabs may remain sensitive to rider traffic at treeline and above.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 23rd, 2023 4:00PM
