Avalanche Forecast

Issued: Jan 15th, 2024 4:00PM

The alpine rating is considerable, the treeline rating is moderate, and the below treeline rating is low. Known problems include Wind Slabs and Deep Persistent Slabs.

Avalanche Canada dnylen, Avalanche Canada


Large avalanches remain a concern. Be mindful of large slopes overhead and transitions to wind affected snow.




Avalanche Summary

Small wind slabs and loose snow avalanches as well as sluffing were reported yesterday.

Last week there were continued reports of large natural and explosive controlled avalanches to size 3 in the alpine and treeline. These reports have started to tapper off.

Keep in mind as natural activity tapers off, rider triggered avalanches remain possible.

Snowpack Summary

Roughly 40-70 cm of soft faceted snow is on the surface in sheltered areas and is wind affected in the alpine and open treeline. This snow overlies a variety of old surfaces, but sheltered terrain where it may overlie preserved surface hoar, is the most concerning. Below 1600m a crust is present 50-80 cm down.

Two additional surface hoar layers in the top 2 m of the snowpack are diminishing in importance. The deeper of the two likely has a robust crust above it, below treeline. The depth of the snowpack varies greatly throughout the region and weak basal facets are present at the base of the snowpack.

Weather Summary

Monday Night

Partly cloudy, variable alpine wind 10-40 km/h, treeline temperature -25 °C.


Mostly cloudy with 5-15 cm of snow, variable alpine wind 10-30 km/h, treeline temperature -18 °C.


Mostly cloudy with 5-10 cm of snow, east alpine wind 10-30 km/h, treeline temperature -16 °C.


Sunny with no new snow, east alpine wind 10-20 km/h, treeline temperature -18 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid shallow, rocky areas where the snowpack transitions from thick to thin.
  • Overhead hazard may not be obvious, evaluate prior to commiting to terrain.


Wind Slabs

An icon showing Wind Slabs

Wind slabs will be more reactive where surface hoar is preserved (think sheltered openings at mid elevations).

Aspects: All aspects.

Elevations: Alpine, Treeline.



Expected Size

1 - 2.5

Deep Persistent Slabs

An icon showing Deep Persistent Slabs

Basal facets remain a concern in steep, rocky terrain and other alpine features with thin-to-thick snowpack transitions. Recent avalanche activity tells us this problem is still lurking out there.

Aspects: All aspects.

Elevations: Alpine.


Unlikely - Possible

Expected Size

2 - 3.5

Valid until: Jan 16th, 2024 4:00PM