Avalanche Forecast
Issued: Dec 7th, 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
6 am update: Ease into terrain cautiously and tune into any signs of instability. Fresh storm slabs may be triggerable by riders at upper elevations.
Summary
Confidence
Moderate
Avalanche Summary
On Saturday, small natural loose wet avalanches were observed early in the day. Explosive and skier controlled storm slabs were reported up to size 2.
On Sunday, storm slabs may remain triggerable by riders.
If you are going out in the backcountry, please consider sharing your observations on the Mountain Information Network (MIN).
Snowpack Summary
At upper elevations, storm totals of 10 to 50 cm are expected by Sunday morning. Any old surface layers such as facets, surface hoar or thin crusts have likely been neutralized by the rainy start to the storm. The cooling trend through the storm is also favorable for bonding.
The mid and lower snowpack is generally well settled and bonded.
Snow depths at treeline are around 100 cm near Whistler, and 70 cm in the Duffy.
Weather Summary
Saturday Night
5 to 15 cm of snow. 20 to 40 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1000 m.
Sunday
Snowfall ending, clearing to a mix of sun and cloud. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -2°C. Freezing level 1200 m.
Monday
Sunny. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -2°C. Freezing level 800 m.
Tuesday
A mix of sun and cloud. 10 to 20 km/h west ridgetop wind. Treeline temperature +2°C. Freezing level 3000 m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Start with conservative terrain and watch for signs of instability.
- Keep your guard up as storm slabs may remain sensitive to human triggering.
- Be especially cautious as you transition into wind-affected terrain.
- Make observations and continually assess conditions as you travel.
Problems
Storm Slabs
Fresh storm slabs may be triggerable by riders. Storm slabs may be most reactive in wind loaded terrain features.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Dec 8th, 2024 4:00PM
