Avalanche Forecast
Issued: Feb 17th, 2024 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
mhalik,
Avalanche Canada
Fresh wind slabs may be forming on lee slopes near ridge crests. These slabs may be reactive where they overlie weak layers of surface hoar or facets.
Summary
Confidence
Moderate
Avalanche Summary
A skier accidentally triggered an small (size 1) wind slab avalanche on Friday on Mt. Joan. Check out this MIN for full details.
Snowpack Summary
Around 4-10 cm of new snow may be accumulated at upper elevations by the end of day Sunday. This snow is falling on a variety of surfaces including a crust on sun-exposed slopes, old wind slabs and soft faceted snow in sheltered terrain. In isolated areas, wind slabs may be more reactive where they overlie facets and surface hoar.
The mid-pack contains several other crusts and layers of moist rounded grains.
Below treeline, most areas are below the threshold for forming avalanches.
Weather Summary
Saturday Night
Cloudy with 1-4 cm of new snow / light rain, 15-30 km/h southwest alpine wind, treeline temperature 0°C, freezing level dropping to 900m.
Sunday
Cloudy with a trace to 2 cm of snow / light rain, 15-30 km/h southwest alpine wind, treeline temperature 1°C, freezing level 1200 m.
Monday
Cloudy with 2-10 cm of snow / light rain, 15 km/h southwest alpine wind, treeline temperature 3°C, freezing levels 1400 m.
Tuesday
Cloudy with 1-4 cm of new snow / light rain, 15 km/h southwest alpine wind, treeline temperature 2°C, freezing level 1300 m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.
- Carefully evaluate steep lines for wind slabs.
Problems
Wind Slabs
New wind slabs may be forming at upper elevations. These slabs could be more reactive if they overlie facets or surface hoar.
Aspects: North, North East, East, South West, West, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Feb 18th, 2024 4:00PM
