Avalanche Forecast

Issued: Jan 14th, 2024 4:00PM

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

Avalanche Canada lbaker, Avalanche Canada


Deep instabilities are best managed through conservative terrain selection.

Be aware that variable winds have built wind slabs in atypical areas. Use caution in wind-affected areas.




Avalanche Summary

Through the weekend riders reported seeing sign of instability such as cracking when transitioning into wind-affected areas. A few natural and skier-triggered, size 1, dry loose avalanches were reported in steep terrain.

On Friday a size 2.5, natural slab avalanche was observed from a distance on a south-facing alpine slope near the Silent Pass area.

If you go out in the backcountry, please consider sharing your observations on the Mountain Information Network (MIN).

Snowpack Summary

Up to 40 cm of recent, low-density snow has both been pressed and redistributed due to wind effect. This recent snow is found sitting atop a variety of old surfaces, including surface hoar, crusts and/or facets.

The mid and lower snowpack is generally weak with several layers of note. Of greatest concern are weak facets and/or depth hoar located at the bottom of the snowpack, particularly in alpine terrain.

Snowpack depths at treeline range from 60 to 150 cm.

Weather Summary

Sunday Night

Clear skies with no precipitation, primarily northwest alpine wind 10 to 25 km/h, treeline temperature -22 °C.


Mainly sunny with no precipitation, northwest alpine wind 10 to 25 km/h, treeline temperature -16 °C.


Partly cloudy with isolated flurries, trace amounts of snow, west alpine wind 10 to 25 km/h, treeline temperature -15 °C.


Cloudy with scattered flurries, 3 to 7 cm of snow, southwest alpine wind 20 to 30 km/h, treeline temperature -15 °C.

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.
  • Avoid lee and cross-loaded slopes at and above treeline.
  • Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
  • If triggered, wind slabs avalanches may step down to deeper layers resulting in larger avalanches.


Deep Persistent Slabs

An icon showing Deep Persistent Slabs

The lower snowpack is characterized by facets and depth hoar near the base of the snowpack in most alpine areas. The likelihood of triggering a deep persistent slab is low, however the consequence of doing so is high.

Aspects: All aspects.

Elevations: Alpine, Treeline.


Unlikely - Possible

Expected Size

1.5 - 3

Wind Slabs

An icon showing Wind Slabs

Variable winds are redistributing low-density snow into thin wind slabs in exposed alpine terrain features. Avoid lee terrain features and cross-loaded slopes where wind slabs may be reactive to human triggering.

Aspects: All aspects.

Elevations: Alpine.



Expected Size

1 - 2

Valid until: Jan 15th, 2024 4:00PM