Avalanche Forecast
Issued: Jan 29th, 2023 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
isnowsell,
Avalanche Canada
Be wary of wind-loaded, steep, northeasterly alpine terrain, where buried surface hoar may linger.
Check out this MIN report from the Avalanche Canada field team on Friday.
Summary
Confidence
Avalanche Summary
On Friday, the Avalanche Canada field team remote triggered a large, wind slab avalanche on a Northeast, alpine slope. Check out more details and photos in their Mountain Information Network report. A few similarly sized natural avalanches were observed on nearby slopes of similar aspect and elevation.
Snowpack Summary
In alpine terrain, recent winds have created a variety of wind-affected surfaces. Wind slabs remain in steep, lee terrain features and may be burying isolated pockets of preserved surface hoar. The surface hoar is reported to be roughly 50 to 80 cm down from the surface. Below roughly 1700 m a widespread, melt-freeze crust is present, with moist snow below.
Weather Summary
Sunday night
Becoming overcast, with flurries beginning in the early morning. Treeline temperatures -5 to -10 C. Moderate west alpine winds.
Monday
Cloudy, with flurries, 0 to 2 cm. Treeline temperatures -5 to -10 C. Moderate westerly alpine winds.
Tuesday
Cloudy, with flurries, 0 to 2 cm. Treeline temperatures -5 to -10 C. Light southwest alpine winds.
Wednesday
Cloudy with sunny periods, no precipitation. Treeline temperature -10 to -15 C. Moderate alpine winds.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Carefully assess open slopes and convex rolls where buried surface hoar may be preserved.
- Carefully evaluate steep lines for wind slabs.
Problems
Wind Slabs
Be wary of isolated pockets of surface hoar buried by stiff wind slabs, in wind loaded, northeasterly alpine terrain. Recent avalanches have shown an impressive capability to propagate.
Aspects: North, North East, East, North West.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Jan 30th, 2023 4:00PM
