Avalanche Forecast

Issued: Apr 4th, 2024 4:00PM

The alpine rating is moderate, the treeline rating is moderate, and the below treeline rating is moderate. Known problems include Storm Slabs and Loose Wet.

Avalanche Canada llarson, Avalanche Canada


Accumulated new snow is developing into storm slabs. Back off steep terrain if you see evidence of nearby avalanches or signs of instability like cracks in the snow surface.




Avalanche Summary

On Wednesday, in the region's northeast, several natural and remotely-triggered wind slab avalanches up to size 2 were reported from north and east aspects in the alpine and treeline.

As storm snow accumulates, we expect storm slabs to form and become reactive and may trigger old wind slabs at alpine and treeline elevations.

Snowpack Summary

20 to 25 cm of new snow has accumulated over old wind slabs at alpine and treeline elevations, overlying a crust on all aspects and elevations.

A widespread crust with facets above is down 60 to 110 cm. This layer is unlikely to human trigger in areas where a thick crust above the weak layer is present.

Weather Summary

Thursday Night

Cloudy with isolated flurries 2 to 4 cm. 10 to 20 km/h east ridgetop wind. Treeline temperature -7° C.


Mix of sun and cloud with isolated flurries, 2 to 4 cm. 5 to 10 km/h north ridgetop wind. Treeline temperature -3° C. Freezing level 1800 m.


Partly cloudy with isolated flurries, 0 to 2 cm snow. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -2° C. Freezing level 2000 m.


Partly cloudy. 10 to 15 km/h southwest ridgetop wind. Treeline temperature -1° C. Freezing level 2100 m.

Check out the Mountain Weather Forecast for additional weather information.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
  • The best and safest riding will be on slopes that have soft snow without any slab properties.
  • The more the snow feels like a slurpy, the more likely loose wet avalanches will become.


Storm Slabs

An icon showing Storm Slabs

20 to 25 cm of accumulated new snow may develop into storm slabs as the new snow settles and becomes a cohesive slab.

Aspects: All aspects.

Elevations: Alpine, Treeline.



Expected Size

1 - 2

Loose Wet

An icon showing Loose Wet

Even small windows of sun may be enough to trigger small wet loose avalanches.

Aspects: South, South West.

Elevations: All elevations.



Expected Size

1 - 1.5

Valid until: Apr 5th, 2024 4:00PM