Avalanche Forecast

Moderate - Uncertainty is due to the fact that persistent slabs are particularly difficult to forecast.

TUESDAY NIGHT: Partly cloudy / Light north wind / Low of -27

WEDNESDAY: Sunny / Light northwest wind increasing to moderate in the afternoon / High of -20

THURSDAY: Mix of sun and cloud / Light northwest wind / High of -19

FRIDAY: Sunny / Light northeast wind / High of -21

No new avalanches were reported on Monday.

Recent explosive control work near Invermere produced large avalanches (size 2) on the crust formed in early December, found 40-70 cm deep in that area.

Variable wind direction has resulted in redistribution of 20-60 cm of recent snow at upper elevations. The recent snow may sit over a layer of weak surface hoar crystals at treeline and below. 

 

The upper snowpack overlies a substantial crust from early December. This crust is approximately 60-120 cm below the surface, 10-30 cm thick on average, and is present across all aspects to at least 2300 m. A layer of weak facets (sugary snow) has been reported above this crust. Snowpack tests are generally showing hard results on this interface.

A late October facet/crust layer of concern sits at the bottom of the snowpack above 1900m. Although this layer has been trending less reactive, it remains on our radar.

The snowpack depth at treeline is around 120-250 cm. The deepest snowpack can be found in the southern half of the region. 

• Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
• Recent wind has varied in direction so watch for wind slabs on all aspects.
• Seek out wind sheltered terrain below treeline where you can avoid wind slabs and find great riding.
• Be aware of the potential for large avalanches due to the presence of a persistent slab.
• Avoid shallow, rocky areas where the snowpack transitions from thick to thin.