Avalanche Forecast
Issued: Nov 29th, 2023 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
trettie,
Avalanche Canada
Assess new snowfall amounts throughout the day and keep an eye on the wind. Rider triggerable wind slab could form in alpine gullies and similar features.
Summary
Confidence
Avalanche Summary
So far this season no avalanches have been reported on the Island.
Please consider filling out a MIN report if you are out in the backcountry.
Snowpack Summary
New snow will overlie a crust at all elevations. In the alpine and upper treeline this new snow could form rider triggerable wind slab on isolated slopes that are above threshold. Think gullies and similar features.
Snowpack height at treeline currently ranges from less than 20 cm at Mt Arrowsmith to around 50 cm in Strathcona Park to 30 cm at Mt Cain. snowpack depths are deeper only in areas where the wind has drifted it in.
Weather Summary
Wednesday Night
Cloudy with up to 5 cm of new snow expected, southeast ridgetop wind 15 to 35 km/h, treeline temperature -2°C.
Thursday
Cloudy with 5 to 15 cm of new snow expected, southeast ridgetop wind 15 to 30 km/h shifting to southwest 10 to 20 km/h, treeline temperature -2°C.
Friday
Cloudy in the morning and clearing throughout the day, up to 5 cm of new snow expected, southeast ridgetop wind 25 to 40 km/h shifting to south 10 to 20 km/h, treeline temperature -2°C.
Saturday
Cloudy with trace amounts of snow on the east side of the Island and up to 30 cm of new snow by early morning on the west side of the Island, west ridgetop wind 20 to 40 km/h, treeline temperature -1°C.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Small avalanches can have serious consequences in extreme terrain. Carefully evaluate your line for wind slab hazard before you commit to it.
- Early season avalanches at any elevation have the potential to be particularly dangerous due to obstacles that are exposed or just below the surface.
- Expect shallow snow cover that barely covers ground roughness.
- Travelling on skis is hazardous due to a very shallow mountain snowpack.
Problems
Wind Slabs
New snow accompanied by southeast wind could form wind slab in alpine gullies and similar features where the snowpack is above threshold.
Aspects: North, North East, East, West, North West.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Nov 30th, 2023 4:00PM
