Avalanche Forecast
Issued: Mar 15th, 2024 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
ejones,
Avalanche Canada
Southwest winds have formed deposits of reactive wind slab.
Seek out sheltered terrain.
Summary
Confidence
Avalanche Summary
A few size 1.5 wind slab avalanches were reported by the Field Team in the Nadahini area on Thursday, failing below corniced ridgeline features.
Skiers triggered reactive wind slab deposits on north- and east-facing slopes near Haines Junction.
If you go into the backcountry, please submit your observations to the Mountain Information Network.
Snowpack Summary
Moderate and strong south winds have redistributed 20 to 25 cm of new snow. Deeper, more reactive deposits exist in leeward terrain. Many windward features are stripped back to the ground.
A weak layer of faceted crystals or surface hoar found 50 to 80 cm deep remains a concern. The midpack is generally facetted to the ground.
The average snowpack depth at the treeline is around 150 cm.
Weather Summary
Friday Night
Cloudy with 5 cm of snow expected. 40 to 50 km/h southwest ridgetop wind. Treeline temperatures rise to -3 °C.
Saturday
Cloudy. 50 to 60 km/h southwest ridgetop wind. Treeline temperatures around 0 °C. Freezing level rising to 1200 m.
Sunday
Cloudy up to 10 cm of new snow expected. 30 to 50 km/h south ridgetop wind. Treeline temperatures around -2 °C. Freezing level 1000 m.
Monday
Cloudy. 15 to 30 km/h south ridgetop wind. Treeline temperatures around -2 °C. Freezing level 1000 m.
For more details, see the Mountain Weather Forecast.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Seek out wind sheltered terrain below treeline where you can avoid wind slabs and find great riding.
- Carefully evaluate steep lines for wind slabs.
- Back off if you encounter whumpfing, hollow sounds, or shooting cracks.
Problems
Wind Slabs
Southwest winds have formed reactive slabs. Watch for corniced ridges, cross-loaded features, and convex rollovers.
These slabs may step down to deeper layers with large loads, producing larger-than-expected avalanches.
Aspects: North, North East, East, South East, West, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 16th, 2024 4:00PM
